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WO2021121460A1 - Dispositif de ventilation pour cabine de véhicule - Google Patents

Dispositif de ventilation pour cabine de véhicule Download PDF

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Publication number
WO2021121460A1
WO2021121460A1 PCT/DE2020/000335 DE2020000335W WO2021121460A1 WO 2021121460 A1 WO2021121460 A1 WO 2021121460A1 DE 2020000335 W DE2020000335 W DE 2020000335W WO 2021121460 A1 WO2021121460 A1 WO 2021121460A1
Authority
WO
WIPO (PCT)
Prior art keywords
air
outflow
cabin
ventilation device
outflow opening
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/DE2020/000335
Other languages
German (de)
English (en)
Inventor
Thomas Johansen
Dan Botez
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Gentherm GmbH
Original Assignee
Gentherm GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Gentherm GmbH filed Critical Gentherm GmbH
Publication of WO2021121460A1 publication Critical patent/WO2021121460A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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
    • B60H1/3414—Nozzles; Air-diffusers with means for adjusting the air stream direction
    • 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
    • B60H1/24—Devices purely for ventilating or where the heating or cooling is irrelevant
    • B60H1/241—Devices purely for ventilating or where the heating or cooling is irrelevant characterised by the location of ventilation devices in the vehicle
    • B60H1/245—Devices purely for ventilating or where the heating or cooling is irrelevant characterised by the location of ventilation devices in the vehicle located in the roof
    • 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
    • B60H1/3414—Nozzles; Air-diffusers with means for adjusting the air stream direction
    • B60H1/3435—Nozzles; Air-diffusers with means for adjusting the air stream direction using only a pivoting frame
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2221/00—Details or features not otherwise provided for
    • F24F2221/28—Details or features not otherwise provided for using the Coanda effect

Definitions

  • Ventilation device for a cabin of a vehicle
  • the present invention relates to a ventilation device for a cabin of a vehicle according to the preamble of claim 1.
  • the invention also relates to a vehicle according to the preamble of claim 14. It is known to ventilate vehicles through air nozzles on the headliner. The cooling of air for vehicle cabins is also known.
  • Ventilation devices Due to their complexity, ventilation devices often have high manufacturing costs and / or are comparatively susceptible to damage due to their construction. Ventilation devices of simple construction usually have no or only extremely limited adjustment options for directing the air flow.
  • the object on which the invention is based is thus to improve the air flow in the cabin of a vehicle.
  • a ventilation device of the type mentioned at the outset the air directing device having a corrugated Coanda profile in order to guide air emerging from the outflow opening along a cabin wall, the outflow device being operable in at least two different operating states and outflowing air is subject to the influence of the Coanda profile to a different extent in the two operating states.
  • the ventilation device according to the invention can furthermore have a plurality of outflow devices, with at least one individual outflow device preferably being assigned to each passenger and arranged in his vicinity.
  • the outflow opening is preferably round or rectangular.
  • the shape of the outflow opening is preferably adapted to the geometry of the air-directing device so that the interaction is improved.
  • the outflow device and / or its outflow opening is arranged above the head height of the passenger and / or to the side of the head of the passenger.
  • the outflow device and / or its outflow opening preferably extends along the center line of the vehicle or the cabin. Alternatively, the outflow opening is arranged in the vicinity of the vehicle center line.
  • the outflowing air is preferably at least in one
  • the outflow opening is preferably assigned at least one air control device.
  • the outflow device is designed to divert air emerging from the outflow opening uniformly in one direction and / or to align air emerging from the outflow opening more evenly in one direction in order to avoid turbulence.
  • the ventilation device according to the invention is further advantageously developed in that a first air-directing device has a Has outlet nozzle, which extends the outflow opening like a channel.
  • the outlet connection preferably has a rectangular cross section.
  • the channel-like extension of the outflow opening results in a uniformly aligned air flow.
  • a second air-directing device has a corrugated Coanda profile, which is designed to divert an air flow emerging from the outflow opening from its original outflow direction using the Coanda effect.
  • the air flow can thus spread along a wall of the cabin. This preferably results in a circulating cabin flow.
  • This circulation preferably creates a circulation of air around the passenger.
  • the axis of rotation of the circulation preferably lies along the longitudinal axis of the vehicle.
  • at least two operating states can be set on the outflow device, in which the air flowing out of the outflow opening is subject to the influence of at least one of the two air-directing devices to different degrees.
  • the air-directing devices comprising the Coanda profile can have a comparatively large influence on the air flowing out of the outflow opening in a first operating state of the outflow device and in a second operating state of the outflow device a comparatively small influence on the outflow device Have air flowing out of the outflow opening.
  • the air flowing out of the outflow opening in an operating state of the outflow device, is withdrawn from the influence of the Coanda profile. In this operating state takes place thus no deflection of the air flow emerging from the outflow opening by the Coanda profile.
  • a ventilation device is also advantageous in which, in an operating state of the outflow device, the Coanda profile acts effectively on the air flowing out of the outflow opening.
  • the air flow emerging from the outflow opening is thus deflected by the Coanda profile, the Coanda effect being used to deflect the air flow.
  • the change between the operating state in which the air flowing out of the outflow opening is withdrawn from the influence of the Coanda profile and the operating state in which the Coanda profile effectively acts on the air flowing out of the outflow opening takes place by at least a movement or adjustment of at least one air steering device.
  • the outflow opening has a clear cross section which has sizes that differ from one another in at least two operating states of the outflow device.
  • a change in the speed of the outflowing air can be achieved with a constant air speed and constant volume flow.
  • two different operating states of the outflow device differing amounts of air emerge through the outflow opening.
  • the change between the operating states takes place through at least one regulation movement.
  • a change in the operating state of the outflow device can be brought about by moving, in particular pivoting, an air-directing device.
  • an adjusting movement is preferably at least an air steering device.
  • the adjusting movement is preferably carried out simultaneously with the regulation movement, by means of which the speed of the air flow emerging from the outflow opening or its amount of air can be adjusted. This could be done by shifting or pivoting the components involved relative to one another.
  • a ventilation device is also preferred in which the outflow device has a coupling section assigned to the air supply line, into which the supply air enters on its way along the air supply line, the coupling section being pivotable relative to the air supply line.
  • the coupling section is elongated and has a largely round cross-section.
  • An outlet connection is provided on the side of this coupling section.
  • the outlet nozzle has a rectangular contour, the elongated side of which is aligned along the vehicle and a supply nozzle.
  • the coupling area can preferably be pivoted around an axis in a specific angular range. This axis preferably runs essentially along the vehicle center axis.
  • the outlet connection is directed towards the passenger in one operating state of the outflow device and pivoted away from the passenger in another operating state of the outflow device.
  • air preferably emerges from the outlet nozzle along a vehicle wall or along the Coanda profile and / or the outflow opening lies directly on the Coanda profile or is on it aligned.
  • a ventilation device according to the invention is also advantageous in which part of the outflow opening on the outlet connection is covered by a cover in one operating state of the outflow device, which is not covered by the cover in another operating state of the outflow device.
  • Pivoting movement of the Coanda profile, part of the outflow opening on the outlet nozzle is preferably covered by a cover at the same time.
  • the Coanda profile is centered on the original outflow opening and on the edge of the remaining opening.
  • the cover can be a movable part on the outlet nozzle.
  • the cover is preferably a nose assigned to the Coanda profile.
  • the ventilation device in a further embodiment, it comprises a temperature control circuit, at least one ambient heat exchanger, a cabin heat exchanger and / or one or more liquid channels.
  • a fluid for heat transport circulates in the temperature control circuit. Heat is exchanged between the temperature control circuit and a cabin environment via the at least one ambient heat exchanger. Via the cabin heat exchanger, heat is exchanged between the temperature control circuit and the air flow provided for ventilation of the cabin.
  • the one or more liquid channels connect the ambient heat exchanger to the cabin heat exchanger in order to enable a circulation of liquid between the ambient heat exchanger and the cabin heat exchanger.
  • a fluid circulates as a heat transfer medium in the temperature control circuit.
  • the ventilation device can have one or more ambient heat exchangers, via which heat is exchanged between the temperature control circuit and a cabin environment can.
  • the temperature control circuit is preferably a closed system.
  • a pump is preferably present in the temperature control circuit in order to pump the fluid forward in the circuit and to cause the fluid to circulate in the temperature control circuit.
  • the ventilation device is preferably set up to be operated in a heating mode and / or in a cooling mode. In the heating mode, the supply air is heated before it is discharged into the vehicle cabin. In the cooling mode, the supply air is cooled before it is discharged into the vehicle cabin.
  • the ventilation device is preferably set up to heat or cool the supply air as required by means of the temperature control circuit.
  • the air delivery device is arranged in the trunk or in the rear of the vehicle. This effectively prevents the passengers from being disturbed by the operation of the air conveying device. The comfort of the passengers is not impaired by vibrations or noise from the ventilation device.
  • the air delivery device is designed as a radial fan.
  • the ventilation device is furthermore advantageously developed in that the fluid circulating in the temperature control circuit is a liquid. Because the fluid is a liquid, a comparatively large amount of heat can be introduced into the supply air on the liquid side of the cabin heat exchanger and can be removed or removed from the supply air.
  • the fluid preferably consists of at least 90% water. It preferably contains anti-freeze as an admixture.
  • a ventilation device is also advantageous in which the ambient heat exchanger is an air-liquid heat exchanger or an evaporator.
  • a cooler through which air flows or a cooling unit that works with compressed air or evaporation is preferably provided on the ambient heat exchanger, via which the temperature control circuit can be cooled in summer.
  • a further ambient heat exchanger of the ventilation device is a liquid-liquid heat exchanger.
  • a supply and discharge line for an engine cooling circuit, via which the temperature control circuit can be supplied with heat in winter, is preferably provided on this ambient heat exchanger.
  • the functions of the first and second ambient heat exchangers can also be taken over by a single heat exchanger.
  • the ventilation device according to the invention has an outflow device via which the supply air, which is tempered in the cabin heat exchanger, is fed to a passenger, the outflow device having at least one outflow opening to allow air to flow out to a passenger.
  • the outflow device preferably has at least one air directing device which directs the air emerging from the outflow opening.
  • the object on which the invention is based is also achieved by a vehicle of the type mentioned at the outset, the
  • Ventilation device of the vehicle according to the invention is designed according to one of the embodiments described above.
  • Vehicle reference is made to the advantages and modifications of the ventilation device according to the invention.
  • FIG. 1 shows a schematic view of a vehicle according to the invention with a fluid line for temperature-controlled ventilation of a vehicle cabin;
  • FIG. 2a shows a perspective view of an air vent in the unfolded position
  • FIG. 2b shows a cross section of the air vent from FIG. 2a in the unfolded position
  • FIG. 2c shows a perspective view of the air vent from FIG. 2a in the folded-in position
  • FIG. and FIG. 2d shows a cross section of the air vent from FIG. 2a in the folded-in position.
  • FIG. 1 shows a vehicle 100 with a ventilation device 10 for the cabin 102 of the vehicle 100.
  • the ventilation device 10 comprises a temperature control circuit in which a fluid for heat transport circulates, and an ambient heat exchanger, via which heat is exchanged between the temperature control circuit and a cabin environment. Furthermore, the ventilation device comprises a cabin heat exchanger 16, via which heat is exchanged between the temperature control circuit and an air flow provided for ventilation of the cabin, and liquid channels that connect the ambient heat exchanger with the Connect cabin heat exchanger 16 to allow circulation of liquid between the ambient heat exchanger and the cabin heat exchanger 16.
  • the ventilation device 10 includes an air supply line 20 to supply air to supply the passengers in the cabin 102 to the cabin heat exchanger 16, and an air delivery device 22 to supply air from a position at a distance from a passenger to the cabin heat exchanger 16 and then to be carried to the passenger.
  • the supply air to be introduced into the cabin 102 is heated or cooled as required.
  • the supply air is taken from a location at a distance from the passengers, in this case the trunk. This is done by means of a radial fan, which is also arranged at a distance from the passengers in the trunk in order to avoid disturbing the passengers through vibrations and noise.
  • the supply air to be introduced into the cabin 102 is supplied to the cabin heat exchanger 16 through a supply duct of the air supply line 20, is tempered there and then supplied to a passenger via an outflow device 32.
  • FIGS. 2a to 2d Such an outflow device 32 is shown in FIGS. 2a to 2d.
  • the outflow device 32 is positioned above the head height of the passengers and to the side of the heads of the passengers, namely along the center line of the vehicle 100 or the cabin 102.
  • Each passenger can also be assigned an individual outflow device 32, which is arranged in the vicinity of the respective passenger.
  • the outflow device 32 has an inflow opening 34 and an outflow opening 36.
  • the inflow opening 34 is round.
  • the outflow opening 36 is rectangular in order to ideally interact with the air directing device 38b.
  • the air leaving the outflow opening 36 flows in the direction of at least one passenger. This makes it possible to optimally care for an individual passenger without influencing neighboring passengers.
  • the outflow opening 36 is assigned to the air guiding devices 38a, 38b, which divert the air exiting from the outflow opening 36 uniformly in a desired direction and avoid turbulence.
  • the air directing device 38a has an outlet connection 40.
  • the outlet connection 40 has a rectangular cross section and extends the outflow opening 36 like a channel. As a result, the outlet connection 40 achieves a uniformly directed air flow.
  • the air guiding device 38b has a corrugated Coanda profile 42. It is intended to divert an air flow emerging from the outflow opening 36 from its original outflow direction using the Coanda effect, so that it can spread along a wall of the cabin 102. This results in a circulating cabin flow. This circulation creates an air circulation around the passenger, the axis of rotation of the circulation running along the longitudinal axis of the vehicle.
  • FIGS. 2a and 2b Two operating states are provided on the outflow device 32.
  • An operating state is shown in FIGS. 2a and 2b.
  • the another operating state is shown in FIGS. 2c and 2d.
  • the outflowing air is subject to the influence of the air-directing devices 38a, 38b to different degrees.
  • the outflow opening 36 has a clear cross section, which in the two operating states has a size that differs from one another. As a result, a change in the speed of the outflowing air can be achieved with a constant air speed and constant volume flow.
  • the outflow device 32 has a coupling section assigned to the air supply line 20, into which the supply air enters on its way along the air supply line 20.
  • the coupling section is elongated and has a largely round cross-section.
  • the coupling section is arranged pivotably relative to the air supply line 20. It can pivot a certain angular range around an axis which also runs essentially along the vehicle center axis. As a result, the outlet connection 40 can be directed towards the passenger in an operating state. In another operating state, the outlet connection 40 can be pivoted away from the passenger.
  • a part of the outflow opening 36 on the outlet connection 40 is at the same time through a Cover covered.
  • the cover is a nose 44 assigned to the Coanda profile 42.

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

Abstract

L'invention concerne un dispositif de ventilation pour une cabine de véhicule, lequel comporte un dispositif de refoulement d'air, destiné à refouler de l'air d'alimentation d'une position située à distance d'un passager jusqu'à un échangeur de chaleur de cabine et ensuite jusqu'au passager, une ligne d'alimentation en air, destinée à acheminer de l'air d'alimentation pour alimenter les passagers de la cabine par ce biais, et au moins un dispositif d'évacuation (32), qui présente au moins une ouverture d'évacuation (36), de manière à permettre à l'air provenant de la ligne d'alimentation de s'écouler jusqu'au passager, et au moins un dispositif de déviation de l'air (38a, 38b) qui dévie de l'air sortant de l'ouverture d'évacuation (36), le dispositif de déviation de l'air (38a, 38b) présentant un profil ondulé de type Coanda (42) destiné à guider l'air qui sort de l'ouverture d'évacuation (36) le long d'une paroi de cabine, le dispositif d'évacuation (32) pouvant être actionné dans au moins deux différents modes de fonctionnement, et l'air qui s'évacue étant soumis dans les deux modes de fonctionnement à l'influence du profil de type Coanda (42) qui s'exerce de manière différente dans chacun des modes de fonctionnement.
PCT/DE2020/000335 2019-12-20 2020-12-15 Dispositif de ventilation pour cabine de véhicule Ceased WO2021121460A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DEDE102019008906.5 2019-12-20
DE102019008906 2019-12-20
DE102020002486.6A DE102020002486A1 (de) 2019-12-20 2020-04-24 Belüftungseinrichtung für eine Kabine eines Fahrzeugs
DEDE102020002486.6 2020-04-24

Publications (1)

Publication Number Publication Date
WO2021121460A1 true WO2021121460A1 (fr) 2021-06-24

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2020/000335 Ceased WO2021121460A1 (fr) 2019-12-20 2020-12-15 Dispositif de ventilation pour cabine de véhicule

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DE (1) DE102020002486A1 (fr)
WO (1) WO2021121460A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102024113259A1 (de) * 2024-05-13 2025-11-13 Illinois Tool Works Inc. Luftausströmer für ein fahrzeug

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202015104334U1 (de) * 2014-08-20 2015-10-20 Ford Global Technologies, Llc Linienregister
EP3017977A1 (fr) * 2014-10-31 2016-05-11 Howa Plastics Co., Ltd. Dispositif de soufflage d'air
JP2017030684A (ja) * 2015-08-05 2017-02-09 トヨタ自動車株式会社 天井用空調レジスタ
JP2017149308A (ja) * 2016-02-25 2017-08-31 株式会社デンソー 車両用空気吹き出し装置

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10946720B2 (en) * 2015-11-03 2021-03-16 Denso Corporation Airflow control system
DE102018106156A1 (de) * 2018-03-16 2019-09-19 Volkswagen Aktiengesellschaft Belüftungsvorrichtung für einen Innenbereich eines Kraftfahrzeugs, insbesondere in einem Bereich einer zweiten Sitzreihe
US11618300B2 (en) * 2019-05-23 2023-04-04 Nio Technology (Anhui) Co., Ltd. Active air curtain

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202015104334U1 (de) * 2014-08-20 2015-10-20 Ford Global Technologies, Llc Linienregister
EP3017977A1 (fr) * 2014-10-31 2016-05-11 Howa Plastics Co., Ltd. Dispositif de soufflage d'air
JP2017030684A (ja) * 2015-08-05 2017-02-09 トヨタ自動車株式会社 天井用空調レジスタ
JP2017149308A (ja) * 2016-02-25 2017-08-31 株式会社デンソー 車両用空気吹き出し装置

Also Published As

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