Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B60—VEHICLES IN GENERAL
  • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
  • B60H1/00—Heating, cooling or ventilating [HVAC] devices
  • B60H1/34—Nozzles; Air-diffusers
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B60—VEHICLES IN GENERAL
  • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
  • B60H3/00—Other air-treating devices
  • B60H3/02—Moistening ; Devices influencing humidity levels, i.e. humidity control
  • B60H3/022—Moistening ; Devices influencing humidity levels, i.e. humidity control for only humidifying the air
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
  • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
  • B05B17/00—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups
  • B05B17/04—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods
  • B05B17/06—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods using ultrasonic or other kinds of vibrations
  • B05B17/0607—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods using ultrasonic or other kinds of vibrations generated by electrical means, e.g. piezoelectric transducers
  • B05B17/0638—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods using ultrasonic or other kinds of vibrations generated by electrical means, e.g. piezoelectric transducers spray being produced by discharging the liquid or other fluent material through a plate comprising a plurality of orifices

Definitions

• the invention relates to a ventilation device, in particular for a vehicle interior.
• the air cooling systems for a vehicle most often incorporate an air conditioner to ensure the thermal comfort of the passengers positioned at the front and the rear, by establishing in the passenger compartment a temperature lower than the external temperature. .
• These systems ventilate cooled air so that they provide thermal comfort to the occupants of the vehicle.
• a first disadvantage of such systems is that the cooled air is dried.
• the seats at the rear of the cabin are often less well ventilated, so they are also less refreshed.
• the condensed microdroplets that form at the inner walls of the aeration pipes are usually collected in a channel.
• the invention relates to a ventilation device, in particular for a vehicle interior, comprising an aerator and a nebulizer, said aerator being configured to adjust a passage of an air flow and said nebulizer being arranged to deliver microdrops nebulized liquid in said air flow.
• said nebulizer is positioned downstream of said aerator.
• the ventilation and / or ventilation device advantageously makes it possible to create a nebulization flow, directly in the aeration and / or ventilation air flow, which favors the evaporation of the microdrops of this device. nebulization flow and reduces or even eliminates the risk of condensation.
• the microdroplets of nebulized liquid are generated directly in the passenger compartment, so that the risk of stagnation of liquid in the aeration ducts due to condensation is discarded.
• the ventilation and / or ventilation device of the invention has the advantages of a diffusion closer to the user, a quick feeling by the user and a quantity of liquid. used which is controlled and optimized.
• the nebulizer is oriented with respect to said aerator so that the microdroplets come into contact with the air flow
• the flow of air is diffused from the aerator substantially inside a cone whose apex is based on said aerator,
• said cone has an opening angle of between 10 ° and 45 °, in particular an opening angle of 30 °
• microdroplets of nebulized liquid are delivered by forming a cloud of microdroplets, said cloud being substantially circumscribed within a cone whose apex is based at said nebulizer, - said cone has an opening angle of between 10 ° and 45 ° including an opening angle of 30 °
• a main airflow outlet direction downstream of the aerator forms a zero or acute angle with a main direction of nebulization at the outlet of the nebulizer, in particular between 0 and 90 ° a main airflow outlet direction downstream of the aerator forms an obtuse angle with a main direction of nebulization at the outlet of the nebulizer,
• a main airflow outlet direction downstream of the aerator is substantially parallel to a main direction of nebulization at the outlet of the nebulizer
• the nebulizer comprises a liquid supply means, integrated or remote,
• the aeration device of the invention further comprises a main air duct, opening onto said aerator, and a blower configured to generate said air flow in said duct,
• the aeration device of the invention furthermore comprises an air intake enabling said propulsor to be fed
• said nebulizer is of piezoelectric type
• said liquid is water
• said liquid comprises perfume
• said liquid comprises essential oils
• said liquid comprises an antimicrobial compound
• the aerator is steerable, especially with respect to the passenger compartment of the vehicle, - the main nebulizing direction at the outlet of the nebulizer is steerable, especially with respect to the passenger compartment of the vehicle.
• FIG. 1 is an isometric view, slightly inclined, of an aeration device according to the invention, arranged inside a vehicle passenger compartment,
• FIG. 2 is a cross-sectional view of FIG.
• the invention relates to a ventilation device comprising an aerator 20 and a nebulizer 30.
• the aerator 20 is configured to adjust a passage of an air flow.
• said aerator 20 opens on an external medium and is designed to allow the passage of the air flow to said external medium, especially in all or nothing mode; it may also be designed to regulate a flow rate of said air flow and / or allow to choose its orientation.
• the outside environment is here a vehicle interior, including automotive.
• the nebulizer 30 is arranged to deliver microdroplets of nebulized liquid in said air flow.
• the size of the drops of nebulized liquid can vary from micrometer to a few tens of micrometers. For example, the size of the drops will here be between 5 and 15 microns.
• said nebulizer 30 is positioned downstream of said aerator 20 in the direction of flow of said air flow.
• the nebulizer 30 is not positioned at said aerator 20; it is also not positioned upstream of said aerator 20.
• Said nebulizer 30 is here located at a housing inside which it is concealed. It comprises a nebulizing head which only outcrops said housing.
• the nebulizer 30 is oriented relative to said aerator 20 so that the microdrops come into contact with the air flow. This means that the microdroplets of nebulized liquid are distributed to the air flow, and that they come into contact with said flow of air after it has emerged from the aerator 20 (see Figure 2).
• the air flow is diffused from the aerator substantially inside a cone 21 whose apex 22 is based at said aerator 20.
• microdroplets of nebulized liquid are delivered by forming a cloud of microdroplets.
• Said cloud is substantially circumscribed the inside of a cone 31 whose apex 32 is based at said nebulizer 30, in particular at the level of the nebulization head (see Figure 2).
• a cloud is a mist of microdroplets that occupies a relatively small area of the passenger compartment, said area being difficult to perceive with the naked eye.
• the main airflow outlet direction coincides with the height of the air flow cone 21, the top 22 of which is situated at the level of said aerator 20.
• Said main direction of airflow exit is marked A20 on Figure 2.
• Said two directions A20, A30 are intersecting; they form an acute angle - even obtuse - between them.
• the angle formed between said two directions A20, A30 is a function of the orientation of the air flow downstream of the aerator 20 and the positioning of the nebulizer 30 relative to said aerator 20.
• the flow of air is generated upstream of said aerator 20 by a blower 40.
• This blower 40 is connected to said aerator 20 by a flow conduit 41 opening on said aerator 20.
• Said blower is further supplied with air by an air intake 42.
• the nebulizer 30 comprises an integrated or remote liquid supply means.
• the nebulizer 30 will include an integrated liquid reservoir, or even a liquid reservoir placed at a distance (alternative not shown here).
• a liquid reservoir placed at a distance it will be planned to connect it to the nebulizer 30 via a tube, in particular a flexible tube, which will supply the nebulizer 30 with liquid.
• nebulizer 30 comprises a nebulizing head for the distribution of nebulized liquid in the passenger compartment, while the nebulization of the liquid is upstream of said head and the nebulized liquid is conveyed to said nebulizing head through a conduit, possibly flexible.
• the part of the nebulizer ensuring the generation of microdrops can then be located in contact with said reservoir.
• the liquid reservoir is intended to contain water.
• It may also include perfume, or even an antimicrobial compound and / or antihistamine.
• said nebulizer 30 is, in particular, piezoelectric type. It comprises, for example, a micro-perforated membrane, excited by a piezoelectric element to produce said microdroplets under the effect of vibrations of said flexible membrane. Said membrane is formed, for example, of a concave grid which resonates by piston effect. It may be of any other type without departing from the scope of the invention.
• the device of the invention is intended to be integrated inside a box, itself configured to be contained in a casing of the passenger compartment of a motor vehicle, preferably a ceiling of a motor vehicle.
• Said housing is provided with a first orifice for the intake of air 42 and a second orifice accommodating said aerator 20.

Landscapes

• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Physics & Mathematics (AREA)
• Thermal Sciences (AREA)
• Air-Conditioning For Vehicles (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=52423935

Family Applications (1)

Country Status (4)

Families Citing this family (1)

Family Cites Families (8)

• 2014
  • 2014-11-26 FR FR1461514A patent/FR3028924A1/fr active Pending
• 2015
  • 2015-11-16 WO PCT/EP2015/076647 patent/WO2016083169A1/fr active Application Filing
  • 2015-11-16 CN CN201580064089.0A patent/CN107000546A/zh active Pending
  • 2015-11-16 EP EP15797056.7A patent/EP3224069A1/fr not_active Withdrawn

Non-Patent Citations (2)

Also Published As

Similar Documents

Legal Events