FR3133791A1 - Heating, ventilation and air conditioning device for vehicle. - Google Patents

Abstract

Heating, ventilation and air conditioning device for vehicle. The invention relates to a particle filter 11 for a heating, ventilation and/or air conditioning device 10 of a vehicle, in particular a motor vehicle, the particle filter 11 comprising a pivoting lever intended to facilitate insertion within a heating, ventilation and/or air conditioning device 10 and/or to facilitate the extraction of the particle filter 11 from such a heating, ventilation and/or air conditioning device 10. Abstract figure: fig. 2

Description

Heating, ventilation and air conditioning device for vehicle. Technical field of the invention

The invention relates to a particle filter for a heating, ventilation and/or air conditioning device for a vehicle. The invention also relates to a heating, ventilation and/or air conditioning device comprising such a particle filter. The invention also relates to an arrangement comprising such a heating, ventilation and/or air conditioning device, or such a particle filter. The invention also relates to a vehicle comprising such an arrangement, or such a heating, ventilation and/or air conditioning device, or such a particle filter. The invention also relates to a method of inserting such a particle filter. The invention also relates to a process for extracting such a particle filter.

State of the prior art

A vehicle, in particular a motor vehicle, generally includes a heating, ventilation and air conditioning device also called by the acronym HVAC for the Anglo-Saxon expression Heating Ventilation and Air-Conditioning. Such a heating, ventilation and air conditioning device occupies a significant volume within the passenger compartment of such a vehicle.

This results in a detrimental lack of space in the passenger compartment. This is particularly the case under a dashboard, in particular at the level of a vertical and longitudinal median plane and/or at the level of a glove box on the passenger side of such a vehicle.

Also, it is appropriate to increase the space available at the front of such a passenger compartment, in particular to accommodate new functions, without minimizing the performance of such a heating, ventilation and/or air conditioning device.

Presentation of the invention

The aim of the invention is to provide a heating, ventilation and/or air conditioning device remedying the above drawbacks. Furthermore, the invention proposes a heating, ventilation and/or air conditioning device equipped with a particle filter that is particularly easy to change.

To achieve this objective, the invention relates to a particle filter for a vehicle heating, ventilation and/or air conditioning device, in particular a motor vehicle, the particle filter comprising a pivoting lever intended to facilitate insertion within a heating, ventilation and/or air conditioning device and/or to facilitate the extraction of the particle filter from such a heating, ventilation and/or air conditioning device.

The pivoting lever may comprise a gripping means, in particular a handle.

The invention also relates to a heating, ventilation and/or air conditioning device for a vehicle, in particular a motor vehicle, comprising a particle filter as defined above.

The invention also relates to an arrangement for a vehicle, in particular for a motor vehicle, comprising:
- a heating, ventilation and/or air conditioning device as defined above,
- a body, the body comprising an engine compartment, a passenger compartment, an apron extending between the engine compartment and the passenger compartment,
- a water box extending substantially at the level of an upper part of the apron,
the heating, ventilation and/or air conditioning device extending both within the engine compartment and within the passenger compartment by crossing the apron.

The heating, ventilation and/or air conditioning device can capture air within the water box.

The heating, ventilation and/or air conditioning device may comprise at least one air collection tube extending at least partially within the water box, in particular by extending substantially transversely.

The particle filter can extend substantially vertically and transversely.

The heating, ventilation and/or air conditioning device may include an opening for inserting and extracting the particle filter, the opening being able to be provided at the top of the heating, ventilation and/or air conditioning device on the engine compartment side so as to allow insertion of the particle filter substantially from top to bottom and extraction of the particle filter substantially from bottom to top.

The heating, ventilation and/or air conditioning device may include an air suction means and the particle filter can be arranged downstream of the suction means.

The heating, ventilation and/or air conditioning device may include a hatch facing the suction means so as to allow access to the suction means for its verification and/or cleaning and/or replacement from the engine compartment.

The heating, ventilation and/or air conditioning device may comprise a casing arranged on the side of the engine compartment so as to phonetically and/or thermally insulate the heating, ventilation and/or air conditioning device, in particular with respect to a heat engine arranged in the engine compartment.

The invention also relates to a vehicle, in particular a motor vehicle, comprising an arrangement as defined above, or a heating, ventilation and/or air conditioning device as defined above or a particle filter as defined above.

The invention also relates to a method of inserting a particle filter within a heating, ventilation and/or air conditioning device as defined above, in which the particle filter is inserted within the opening via a translation substantially from top to bottom, in particular via the pivoting lever, to an intermediate position of the particle filter, then
the particle filter is pivoted towards the rear of the vehicle, in particular via a push of the pivoting lever in the longitudinal direction towards the rear, until arriving at an operating position of the particle filter.

The invention also relates to a method for extracting a particle filter from a heating, ventilation and/or air conditioning device as defined above, in which the particle filter is pivoted, in particular via traction of the pivoting lever according to the longitudinal direction towards the front, so as to place it in an intermediate position, then
the particle filter is pulled upwards to extract it through the opening, in particular by pulling the pivoting lever in a substantially vertical direction.

Presentation of figures

These objects, characteristics and advantages of the present invention will be explained in detail in the following description of an embodiment and a mode of execution of methods given on a non-limiting basis in relation to the attached figures among which:
There is a schematic view of a vehicle according to one embodiment.

There is a side view of an arrangement according to one embodiment.

There is a partial perspective view of a body and a heating, ventilation and/or air conditioning device according to one embodiment, from the passenger compartment side of the vehicle.

There is a partial perspective view of the body and the heating, ventilation and/or air conditioning device according to the embodiment, from the side of the engine compartment of the vehicle.

There is a partial sectional view along a vertical and longitudinal plane of the heating, ventilation and/or air conditioning device according to the embodiment from the side of the engine compartment, a particle filter being in an operating position.

There is a partial sectional view along a vertical and longitudinal plane of the heating, ventilation and/or air conditioning device according to the embodiment from the side of the engine compartment, the particle filter being in an intermediate position.

There is a section along a vertical and longitudinal plane of the heating, ventilation and/or air conditioning device according to the embodiment.

There is a section along another vertical and longitudinal plane of the heating, ventilation and/or air conditioning device according to the embodiment.

There is an exploded perspective view of the heating, ventilation and/or air conditioning device according to the embodiment.

There is a perspective view of the heating, ventilation and/or air conditioning device according to the embodiment.

There is a side view of the heating, ventilation and/or air conditioning device according to the embodiment.

There is another side view of the heating, ventilation and/or air conditioning device according to the embodiment.

There is a front view of the rear of the heating, ventilation and/or air conditioning device according to the embodiment.

There is a front view of the front of the heating, ventilation and/or air conditioning device according to the embodiment.

There is another perspective view of the heating, ventilation and/or air conditioning device according to the embodiment.

There is a partial perspective view of the heating, ventilation and/or air conditioning device according to the embodiment, a cover closing an access opening.

There is another partial perspective view of the heating, ventilation and/or air conditioning device according to the embodiment, without the cover.

There is another partial perspective view of the heating, ventilation and/or air conditioning device according to the embodiment, without the cover and without a hatch.

There is a partial perspective view of the heating, ventilation and/or air conditioning device according to the embodiment, from the side of the engine compartment, without an acoustic and/or thermal insulation casing.

There is a partial perspective view of the heating, ventilation and/or air conditioning device according to the embodiment, from the side of the engine compartment, the particle filter being inserted or extracted.

There is a perspective view of a suction means of the heating, ventilation and/or air conditioning device according to the embodiment.

detailed description

The direction in which a motor vehicle moves in a straight line is defined as the longitudinal direction perpendicular to the other two, is called vertical direction Z. Thus, we use a direct reference XYZ in which right and Z is the vertical direction pointing upwards. The forward direction corresponds to the direction in which the motor vehicle usually moves in the longitudinal direction and is opposite to the rearward direction.

As illustrated on the , a vehicle 1, for example a motor vehicle, comprises an arrangement 3. The vehicle 1 comprises for example at least one engine 7, for example a heat engine and/or an electric motor.

Arrangement 3 comprises a body 2. Body 2 comprises an engine compartment 4. Preferably, the engine compartment 4 is arranged at the front of the vehicle. The body 2 further comprises a passenger compartment 5. As illustrated in Figures 1, 2 and 3, the body 2 further comprises an apron 6. The apron 6 extends between the engine compartment 4 and the passenger compartment 5. Advantageously, the apron 6 extends transversely or substantially transversely and constitutes a boundary between the engine compartment 4 and the passenger compartment 5. As illustrated in Figures 1, 2 and 4, the arrangement 3 further comprises a water box 9. By "water box water”, we mean a cavity or several cavities, for example a cavity on the right side and a cavity on the left. Preferably, the water box 9 extends, or extends substantially, at the level of an upper part 6' of the apron 6. Preferably, the water box 9 extends over the entire length in the transverse direction of the apron 6. More precisely, in the case of a vehicle comprising a windshield 8, the water box 9 extends under a base or lower end 8' of the windshield 8. The water box is in particular intended to recover water rainwater, snow, frost, windshield washer fluid or even water used to clean the vehicle, particularly on the vehicle's windshield.

Arrangement 3 also includes a heating, ventilation and/or air conditioning device 10 which will be described subsequently.

For simplicity, the “heating, ventilation and/or air conditioning device” is hereinafter called “device”.

The device 10 preferably comprises a main body 28 grouping together a housing or distribution box and a housing or energy box (heating and/or air conditioning) extending on the side of the passenger compartment 5, as illustrated in Figures 2 and 3. The device 10 comprises a secondary body 27 or air inlet and filtration box or box extending from the side of the engine compartment 4 (in any case outside the passenger compartment), as illustrated in Figures 2, 5 and 6. The arrangement or the device 10 comprises a separation 29, for example of the plate type shaped to fit at least in part the apron 6. This separation 29 comprises an orifice allowing the passage of the device 10. As a reminder, the apron is arranged in particular between the passenger compartment 5 and the engine compartment 4, as illustrated in particular on the . For example, the main body 28 extends mainly into the passenger compartment 5 and protrudes into the engine compartment 4. Generally, the device 10 extends substantially horizontally, in the longitudinal direction or substantially in this direction.

Preferably, the main body 28 comprises or receives a condenser 42, an air heater 43, and a radiator 44, as illustrated in the figure. . For example, in the case of an electric vehicle, the air heater and the radiator are replaced by a heater, particularly at high voltage, for example of the positive temperature coefficient type. Preferably, the path of the air within the main body 28 takes place substantially in the longitudinal direction of the vehicle. Advantageously, the main body 28 passes through the apron 6 and is housed mainly within the passenger compartment (for example of the order of 75%), the remainder being housed on the side of the engine compartment. Generally speaking, the device 10 includes shapes, both interior and exterior, having a minimum impact on the space of the passenger compartment. In addition, the shapes of the main body 28 are optimized to integrate interior elements such as condenser and/or air heater and/or radiator, as well as the valves and/or separators and/or servomotors by limiting the overall volume while optimizing the flow of forced air.

Generally speaking, in elevation view, the shape of the device 10 is flared, the largest section in a longitudinal and transverse plane being arranged substantially in the space of the dashboard, that is to say in high. The weakest section in a longitudinal and transverse plane is arranged at the bottom so as to free up volume, particularly under the dashboard.

In summary, the pulsed and filtered air goes towards the rear, passes through the elements 42, 43, 44 of the energy box and then arrives in the distribution box. For example, each element 42, 43, 44 is housed in a specific chamber, in particular sealed, making it possible to guide the air according to needs. Preferably, as illustrated in the , the main body 28 makes it possible to separate and/or direct the pulsed air within the passenger compartment via ducts 45 and/or separators and/or valves 46. Preferably, as illustrated in the , one or more servomotors 47 drives or controls the valves and/or separators. Preferably, a flap is provided above the heating element to create lukewarm air by mixing cold and hot air, a separator is provided on the upper part to direct the air onto the windshield (defogging). and/or heating) and/or on the air vent ducts for front and side heating, and a valve is provided in the front part to direct the air towards the feet of the front and/or rear passengers.

The device 10 also includes an air filter 11, more precisely for particles and/or pollen. The particle filter 11 is arranged in the secondary body 27, that is to say upstream of the main body 28 in the direction of the air flow. More precisely, the filter 11 is housed in the lower part of the secondary body 27. The filter is housed vertically and can be extracted through an opening 14 of the secondary body preferably at the level of the center of the water box 9 in the transverse direction. As illustrated in Figures 5, 6, 8 and 20, the particle filter 11 comprises a pivoting lever 12. The lever 12 facilitates the insertion within the device 10 of the filter 11 as will be explained later. Alternatively, or in addition, the lever 12 facilitates the extraction of the particle filter 11 from the device 10 as will also be explained later. Preferably, the pivoting lever 12 comprises a gripping means 13, for example of the handle type. More precisely, as illustrated in Figures 5, 6 and 20, the lever 12 can pivot relative to the filter 11 around an axis A extending transversely when the filter is housed in a chamber 26 of the body 27. Preferably, the pivot axis is arranged at an upper face 11U of the particle filter 11, as illustrated in the .

As a reminder, the device 10 extends both within the engine compartment 4 and within the passenger compartment 5. Thus, the device 10 passes through the apron 6, as illustrated in Figures 3 and 4.

The device 10 captures the air within the water box 9. For this, as illustrated in Figures 4 and 10 to 21, the device 10 comprises at least one air capture tube 15 extending at least partially within the water box 9. Thus, the air intake takes place outside or substantially outside, for example under an engine hood. Generally speaking, at least the upper part of the air inlet housing extends within or at the water box. Preferably, the at least one tube extends transversely, or substantially transversely. Advantageously, as illustrated, the device 10 comprises a right pipe 15R extending on the right side and a left pipe 15L extending on the left side. Preferably, each tube 15R, 15L is bent, for example in the shape of a horn or substantially in the shape of a horn. Advantageously, the orifice 18R, 18L of each tube is oriented obliquely, downwards. Thus, each horn extends downwards or substantially downwards. Preferably, as illustrated in particular in Figures 13 and 14, the right tube 15R is more bent relative to the left tube 15L. For example, the difference in shape between the right tubing and the left tubing is linked to the shape of the water box on the left side and the shape of the water box on the right side, particularly in terms of depth in the vertical direction. . Preferably, as illustrated in Figures 10, 11, 12 and 15 to 21, each orifice of each tube 15R, 15L comprises a grid 19R, 19L. Each grid 19R, 19L makes it possible in particular to avoid any suction of large debris such as dead leaves, twigs or others, which may be found within the water box, or debris arriving within the water box, in particular due to the speed of the vehicle.

As illustrated in particular in Figures 2, 5, 7 and 8, the particle filter 11 extends vertically, or substantially vertically, and transversely, or substantially transversely, in the operating position PF. Note that during insertion or extraction which will be explained later, the particle filter 11 passes through an intermediate position PI ( notably).

As mentioned previously, the device 10 comprises an opening 14 for the extraction, and therefore for the insertion, of the particle filter 11. Advantageously, as illustrated in Figures 5, 6, 7, 8 and 20, the opening 14 is provided at the top of the secondary body 27 of the device 10. In addition, the opening 14 is arranged on the side of the engine compartment 4. Thus, the insertion of the particle filter 11 is done substantially from top to bottom and the extraction of the particle filter 11 is done substantially from bottom to top.

As illustrated in particular in Figures 2, 5 to 9, 18, 19 and 21, the device 10 comprises an air suction means 20 at the upper level of the secondary body or casing 27. The suction means of the The air comprises in particular a motor 21 and at least one volute or fan or turbine 22. Preferably, as illustrated, the motor 21 is arranged in a centered manner or substantially centered in relation to a vertical and longitudinal median plane of the vehicle or the device 10 More preferably, two turbines 22 are arranged on either side of the motor 21. Thus, a shaft driven by the motor 21 is connected, for example by being in common, with the axes of the turbines 22. Thus, for example the rotation of the motor 21 directly drives the turbines in rotation, without a reduction gear. Preferably, the motor 21 and the turbines 22 are coaxial or substantially coaxial, and with axes extending in the transverse direction. The casing 27 preferably serves as a support for the pivotally mounted volutes 22 and the motor 21. In addition, the secondary body 27 advantageously has the function of an air channel between the air inlets or orifices 18R, 18L and the distribution towards or at the level of the main body 28 which diffuses the treated air (filtration, heating and/or cooling, etc.) into the passenger compartment.

Alternatively, a single turbine, arranged to the right or left of the engine is provided. In such a case, preferably, the length of the turbine in the transverse direction is increased and the diameter remains substantially the same as the diameter of the engine. Alternatively, the impeller diameter is increased and the length is decreased.

Preferably, as illustrated in Figures 10, 13 and 21, for example on the right side, a conduit or an air inlet or air intake 41 is provided within the separation 29. This conduit makes it possible to provide the air from the passenger compartment towards the suction means 20 of the device 10 in order to recycle the air from the passenger compartment and return it to the passenger compartment after treatment.

Advantageously, as illustrated in Figures 7 and 8 in particular, the particle filter 11 is arranged downstream of the suction means 20. In other words, the air is sucked in at the level of the orifices 18R, 18L of the tubes 15R, 15L, crosses the grids 19R, 19L, due to the depression created by the turbines 22. The sucked air then finds itself in a chamber or housing 26 before passing through the particle filter 11. Note that the chamber 26 for receiving the filter, illustrated in particular in Figures 7 and 8, has a flared shape, that is to say that it widens as it goes upwards.

Advantageously, as illustrated in the (section along a vertical and longitudinal plane passing through a turbine 22), the device 10 comprises a hatch 24 facing the suction means 20 and the opening 14. More precisely, the hatch 24 has a shape curved opposite each turbine 22 so as to direct the air flow coming from each turbine towards the particle filter 11 while limiting pressure losses. Preferably, an interior surface 24' of the hatch 24 is therefore smooth and concave facing the turbines. For example, as shown in (section along a vertical and longitudinal plane passing through the motor 21), the hatch 24 does not have a curved shape facing the motor 21. For example, a handle or projection 25 is arranged at this level of the hatch 24 as illustrated in Figures 8 and 17.

Thus the hatch 24 offers access to the suction means 20 for its verification and/or its cleaning and/or its replacement. This access is arranged on the side of the engine compartment 4. The handle 25 facilitates gripping the hatch 24 and therefore its extraction. After extracting the hatch 24, we can access the opening 14.

As illustrated in Figures 4, 5, 6, 7, 8, 11, 12, 16, 17, 18 and 20, the device 10 comprises a casing 30 arranged on the side of the engine compartment 4. Thus, the opening 14 is also provided within the casing 30. Indeed, at the level of the opening 14, as illustrated in particular in Figures 4, 14, 16, the casing 30 comprises a cover 16. The cover 16 therefore obstructs the opening 14 at the level of the casing 30. Preferably, as illustrated in Figures 14 and 16, the cover 16 comprises cavities or handles 17 facilitating in particular the extraction of the cover 16 relative to the casing 30. For example, the secondary body 27 is secured by the casing 30 which has an acoustic function and which has a complementary role as a thermal wall within the engine compartment. This casing 30 is for example fixed on the body 2 at the level of the apron 6. Preferably, a seal 31 ensures the seal between the casing 30 and the secondary body 27 (illustrated on the ) and/or at the contour of the passage hole of the apron 6. For example, the casing 30 is fixed on the apron at the interface or separation 29 with the passenger compartment, for example with a peripheral seal.

A mode of execution of a method of inserting the particle filter 11 within the device 10 will now be described.

Preferably, the device 10 is only accessible from the engine compartment after lifting the engine hood (not illustrated).

Obviously, before inserting the particle filter, the cover 16 is removed from the casing 30. This step is facilitated by the cavities 17 of the cover 16. In addition, the hatch 24, illustrated in particular on the , is also withdrawn. This step is facilitated by the projection 25 provided on the hatch 24. Thus, the opening 14 is clear. Firstly, the particle filter 11 is partially inserted by passing it through the opening 14 with the pivoting lever arranged at the top. As illustrated on the , the particle filter 11 is found within the opening 14 via a translation substantially from top to bottom. The pivoting lever 12 is then substantially oriented towards the front around its axis A extending transversely. We then push the filter downwards, for example by pressing on the upper face 11U of the filter and/or on the lever, so as to position the particle filter 11 in an intermediate position PI illustrated in Figures 2 and 6.

Then, the particle filter 11 is pivoted towards the rear of the vehicle. Due to the difficulty of access within the opening 14, the pivoting lever 12 is used, in particular its handle 13, to push the top of the filter backwards in the longitudinal direction towards the rear. Indeed, the length of the pivoting lever 12 and the shape of the handle 13, for example rectangular in shape, make the handle 13 accessible from the opening 14 when the filter is in the intermediate position PI. Note that in the intermediate position of the filter, the lever and its handle extend obliquely upwards and forwards. From the start of pushing the handle 13 backwards, the lever pivots around its axis A until it extends in a substantially transverse and longitudinal plane. By pushing further in the longitudinal direction towards the rear the lever 12 via the handle 13 (still accessible through the opening 14) we arrive at the operating position PF of the particle filter 11 illustrated in particular in Figures 2 and 5. For As a reminder, the operating position of the particle filter is such that the filter extends parallel to a vertical and transverse plane, or substantially parallel to a vertical and transverse plane.

Then, we proceed to the placement of the hatch 24 which optimizes in particular the orientations of the air flow sucked in by the suction means. Finally, we proceed to place the cover 16 on the casing 30. The opening 14 is then blocked and the device remains operational on the engine compartment side.

A mode of execution of a process for extracting the particle filter 11 from the device 10 will now be described.

As a reminder, preferably, the device 10 is only accessible from the engine compartment after lifting the engine hood (not illustrated).

Obviously, before extracting the particle filter, the cover 16 is removed from the casing 30. This step is facilitated by the cavities 17 of the cover 16. In addition, the hatch 24, illustrated in particular on the , is also withdrawn. This step is facilitated by the projection 25 provided on the hatch 24. Thus, the opening 14 is cleared and the pivoting lever 12, in particular its handle 13, becomes accessible. Before extraction, the filter 11 is in the operating position PF ( notably).

Firstly, the pivoting lever 12 is pulled via the handle 13 in the longitudinal direction towards the front. Due to the pivot connection of axis A of the lever and the flared shape of housing 26, pulling the handle forward causes the particle filter 11 to pivot. The filter 11 then finds itself in the intermediate position PI, i.e. oriented forward obliquely and the lever also extends obliquely forward, as shown in the . Pulling the handle 13 upwards, or substantially obliquely upwards and forwards, allows the filter to be extracted entirely from its housing 26, through the opening 14.

Thanks to device 10, the passenger compartment offers more space while maintaining an excellent level of thermal comfort. By thermal comfort, we mean that heating, air conditioning and ventilation offer optimal performance. More precisely, thanks to the substantially vertical positioning of the device 10, in particular of the main body 28 arranged in the passenger compartment 5, the central zone under a dashboard 40 is freed ( ). It becomes possible to accommodate new functions in this space. For example, the volume released is between ten and fifteen liters. For example, the device offers a gain in the vertical direction of around twenty percent.

In addition, the perceived habitability is improved, which helps to encourage a customer to choose such a vehicle. Note that the shape flared towards the top of the secondary body or air inlet box 27 at the level of the chamber 26 makes it possible to take into account the space constraints within the engine compartment 4. Thus, despite the presence of the secondary body 27 in front of apron 6, the engine compartment is not cluttered.

As mentioned previously, inserting or extracting the particle filter is particularly simple. This makes changing the particle filter after-sales, during the life of the vehicle, much easier. This easy maintenance is due to access to the particle filter 11 from the side of the engine compartment 4. This access is particularly facilitated by the positioning of the particle filter 11 at the top of the engine compartment. In addition, the removal of the filter 11 is done by a translation substantially upwards and the installation of the new filter is done by a translation substantially downwards, at least up to the intermediate position. This type of movement is easy at the top of the engine compartment, this space being free of any element hindering this filter change. Note that the operator remains standing, next to the vehicle, to carry out this filter change. The solution therefore improves working conditions in terms of ergonomics and arduousness, the operator not having to kneel and/or contort to access the filter in the passenger compartment. As a reminder, the hatch 24, the cover 16 and the filter 11 are respectively equipped with gripping means 25, 17, 13. Thus, the operator does not need any specific tools. Note that the operator does not have to enter the passenger compartment for this operation. In addition, as different maintenance interventions require opening the engine hood, interventions on the devices 10 can be carried out simultaneously or successively. All these specific features result in time savings for the operator.

Note that if it is necessary to intervene on the motor 21 and/or the turbines 22 of the suction means 20, the particle filter can remain in the operating position PF without hindering access to these elements. Thus, to carry out maintenance, in particular check the engine and/or the turbines, or even change them, simply remove the cover 16 then the hatch 24 to be able to access these elements, as illustrated in Figures 16 to 18. Here again, the operator does not have to kneel and/or contort himself to carry out this intervention. Access to the engine and turbines does not require any specific tools either.

The flared shape of the chamber 26 promotes the flow of air from the turbines 22 towards the air filter 11. Thus, the air is only filtered after passing through the turbines 22 which avoids any pressure loss and/or loss of flow before filtration. The snail shape of the upper part of the secondary body 27 makes it possible to accelerate and concentrate the pulsed air towards the transfer zone to the main body 28. As a reminder, opposite each turbine 22 the shape or interior surface 24' is curved and facing the motor 21, the hatch 24 includes the handle 25. Indeed, at this location, it is even appropriate to limit the volume of the chamber 26, for example by closing the chamber relative to the secondary body 27 via a wall 25' of the hatch handle as illustrated in the . In addition, the orientation of the air intakes 18R, 18L downwards, in particular from their face at the ends, as well as their location in the upper zone, makes it possible to avoid any intrusion of water within the tubing 15 and therefore consequently within the suction means. This results in turbines and a motor free of humidity, which contributes to their reliability and longevity.

The air intake being made at the level of the water box 9, the transfer of air takes place substantially from the top to the bottom which allows a reduced bulk of the device 10 within the passenger compartment, in particular under the dashboard 40. In addition, the device 10 frees up space on the passenger side which makes it possible to install a spacious glove box, in particular a glove box equipped with an access door.

In addition, the casing 30 insulates phonetically, acoustically, and/or thermally the device 10, in particular with respect to the heat engine 7 arranged in the engine compartment 4 where appropriate. Comfort is thus optimal within the vehicle’s passenger compartment.

Advantageously, as mentioned previously, the motor 21 is arranged between the two turbines 22 and the diameters of the turbines and of the motor are substantially identical. The size of the suction means is then reduced and optimized, which has an impact on the volume of the secondary body 27. Thus, the double turbine 22 as illustrated and the motor 21 arranged between them are optimal in terms of volume and allow to accommodate the assembly in the space offered by the water box or substantially in this space. The turbines or volutes and the engine thus arranged are of small diameter which again creates a saving of space, on the side of the engine compartment here. Indeed, the diameter of the engine and turbines is small, in particular thanks to the lengthening of the turbines. As mentioned previously, the position of the filter does not disrupt the extraction or capture of air. In other words, the flow loss is low.

Note that the installation of the suction means in the water box has no impact on the function of the water box in terms of recovery and evacuation of rainwater, snow, frost or even water. washing.

Advantageously, an awning grille (not shown) and/or the engine cover (not shown) hide and/or protect the upper part of the heating, ventilation and/or air conditioning device at the level of the engine compartment.

Note that the acoustic and/or thermal casing 30 as well as the secondary body 27 have shapes adapted to the space available within the engine compartment, in particular thanks to the flared shape.

As mentioned, the solution facilitates interventions at the level of the device 10, in particular the maintenance of the suction means, and changes of the particle filter.

The solution can be used on all types of dashboard, whatever the type of vehicle and whatever the vehicle range.

As a note, the solution according to the invention therefore achieves the objective of providing a heating, ventilation and/or air conditioning device which encroaches little into the front space of the passenger compartment, without harming thermal comfort within the vehicle. , and has the following advantages:
- it is economical,
- it can be used in other vehicles having an engine compartment arranged close to their passenger compartment, such as trucks, buses, or even in other types of vehicles such as trams, trains or aircraft.

Claims (14)

Particle filter (11) for a heating, ventilation and/or air conditioning device (10) of a vehicle, in particular a motor vehicle (1), characterized in that the particle filter (11) comprises a pivoting lever (12) intended to facilitate insertion into a heating, ventilation and/or air conditioning device (10) and/or to facilitate the extraction of the particle filter (11) from such a heating, ventilation and/or air conditioning device ( 10). Particle filter (11) according to the preceding claim, characterized in that the pivoting lever (12) comprises a gripping means (13), in particular a handle. Heating, ventilation and/or air conditioning device (10) for a vehicle, in particular a motor vehicle (1), characterized in that it comprises a particle filter (11) according to one of the preceding claims. Arrangement (3) for a vehicle, in particular for a motor vehicle (1), comprising:
- a heating, ventilation and/or air conditioning device (10) according to the preceding claim,
- a body (2), the body (2) comprising an engine compartment (4), a passenger compartment (5), an apron (6) extending between the engine compartment (4) and the passenger compartment (5),
- a water box (9) extending substantially at the level of an upper part (6') of the apron (6),
characterized in that the heating, ventilation and/or air conditioning device (10) extends both within the engine compartment (4) and within the passenger compartment (5) passing through the apron (6). Arrangement (3) according to the preceding claim, characterized in that the heating, ventilation and/or air conditioning device (10) captures the air within the water box (9). Arrangement (3) according to the preceding claim, characterized in that the heating, ventilation and/or air conditioning device (10) comprises at least one air collection tube (15) extending at least partially within the box water (9), in particular by extending substantially transversely. Arrangement (3) according to one of claims 4 to 6, characterized in that the particle filter (11) extends substantially vertically and transversely. Arrangement (3) according to one of claims 4 to 7, characterized in that the heating, ventilation and/or air conditioning device (10) comprises an opening (14) for the insertion and extraction of the particle filter ( 11), the opening (14) being provided at the top of the heating, ventilation and/or air conditioning device (10) on the side of the engine compartment (4) so as to allow insertion of the particle filter (11) substantially from above at the bottom and an extraction of the particle filter (11) substantially from bottom to top. Arrangement (3) according to one of claims 4 to 8, characterized in that the heating, ventilation and/or air conditioning device (10) comprises an air suction means (20) and in that the filter particle (11) is arranged downstream of the suction means (20). Arrangement (3) according to the preceding claim, characterized in that the heating, ventilation and/or air conditioning device (10) comprises a hatch (24) facing the suction means (20) so as to allow access to the suction means (20) for its verification and/or cleaning and/or replacement from the engine compartment (4). Arrangement (3) according to one of claims 4 to 10, characterized in that the heating, ventilation and/or air conditioning device (10) comprises a casing (30) arranged on the side of the engine compartment (4) so as to insulate phonetically and/or thermally the heating, ventilation and/or air conditioning device (10), in particular with respect to a heat engine (7) arranged in the engine compartment (4). Vehicle, in particular a motor vehicle (1), characterized in that it comprises an arrangement (3) according to one of claims 4 to 11, or a heating, ventilation and/or air conditioning device (10) according to claim 3 or a particle filter (11) according to one of claims 1 or 2. Method of inserting a particle filter (11) within a heating, ventilation and/or air conditioning device (10) of an arrangement (3) according to claim 8, characterized in that the particle filter (11) within the opening (14) via a translation substantially from top to bottom, in particular via the pivoting lever (12), to an intermediate position (PI) of the particle filter (11), Then
the particle filter (11) is pivoted towards the rear of the vehicle, in particular via a push of the pivoting lever (12) in the longitudinal direction towards the rear, until arriving at an operating position (PF) of the particle filter particles (11). Method for extracting a particle filter (11) from a heating, ventilation and/or air conditioning device (10) of an arrangement (3) according to claim 8, characterized in that the particle filter is pivoted (11), in particular via traction of the pivoting lever (12) in the longitudinal direction towards the front, so as to place it in an intermediate position (PI), then
the particle filter (11) is pulled upwards to extract it through the opening (14), in particular by pulling the pivoting lever (12) in a substantially vertical direction.