DE102019216289A1 - Motor vehicle with an interior dehumidifying device - Google Patents

Abstract

The present development relates to a ventilation arrangement or a motor vehicle with a motor vehicle interior and with a dehumidifying device for the interior (3), the interior (3) having an interior lining (12) and the dehumidifying device (30) in one of the interior lining (12) ) concealed or in the interior lining (12) integrated receiving area (22) is arranged, which is in flow connection with the interior (3) and wherein the dehumidifying device (30) has an air-permeable container (32) in which moisture-absorbing material (34) is arranged.

Description

Technical area

The present development relates to a ventilation arrangement for a motor vehicle interior, or a motor vehicle with a motor vehicle interior and with an interior dehumidifying device.

background

In certain situations the windows of motor vehicles can fog up and thereby noticeably impair the view for the driver or the vehicle occupants. It is well known to counteract the fogging of motor vehicle windows by dehumidifying the interior air. For example, from the DE 10 2016 224 775 A1 a motor vehicle and an air dehumidifying device are known in which a free-flowing adsorbent can be conveyed in a circuit. Such a circuit typically has a mechanical conveying device, such as a screw conveyor, for the free-flowing adsorbent.

Such air dehumidifying devices can prove to be comparatively expensive, complex, sometimes also prone to failure and maintenance-intensive.

In contrast, the present further development is based on the object of providing a motor vehicle and a ventilation arrangement for the interior of a motor vehicle, which have an improved, in particular comparatively simple and inexpensive to implement, dehumidifying device for the motor vehicle interior.

Advantageous configurations

This object is achieved with a motor vehicle and with a ventilation arrangement according to the features of the independent patent claims. Advantageous configurations are each the subject of dependent claims.

To this extent and according to one aspect, a motor vehicle with a motor vehicle body is provided. The motor vehicle has an interior, typically an interior functioning as a passenger compartment, and a dehumidifying device for the interior. The interior has an interior lining. The dehumidifying device is arranged in a receiving area covered by the interior lining or integrated into the interior lining. The receiving area is in flow connection with the interior. The dehumidifying device has an air-permeable container in which moisture-absorbing material is arranged.

The moisture-absorbing material arranged in the air-permeable container can absorb moisture and also be designed to be moisture-absorbent. Due to its arrangement in the air-permeable container and due to its arrangement in the receiving area in flow connection with the interior, the moisture-absorbing material can have interior air flow around or through it. In this way, the moisture-absorbing material can remove moisture from the indoor air. Since the receiving area is in direct flow connection with the interior space, there can be a permanent exchange of air between the receiving area and the motor vehicle interior, even if an air conditioning system or a ventilation arrangement for the motor vehicle interior should be switched off or deactivated.

In this respect, the dehumidifying device proposed here can provide permanent or permanent dehumidification of the indoor air independently of the operation of a ventilation arrangement or air conditioning system.

According to a further embodiment, the receiving area has a recess embedded in the interior lining with a recess in which the dehumidifying device is arranged. Letting a receptacle into the interior cladding makes it possible to accommodate the dehumidifying device in or on the interior cladding in a particularly space-saving manner. In particular, the receptacle or the recess can be let into an area that is not visible to the vehicle occupants or can be integrated into the interior trim. In this way, the dehumidifying device can be hidden from the vehicle occupants or can be arranged in or on the interior paneling so that it is barely perceptible to the vehicle occupants.

The provision of a receiving recess in the receiving area of the interior lining provided for the dehumidifying device also proves to be particularly advantageous from an aesthetic point of view.

According to a further embodiment, the receiving area is let into a front-side or rear-side storage area of the interior trim that extends essentially in the vehicle longitudinal direction and vehicle transverse direction or is integrated therein. A front storage area can for example extend adjacent to a base area of a windshield in the vehicle interior. A rear storage area can extend, for example, adjacent to a base area of a rear window. The rear storage area can be, for example, a rear shelf. The arrangement or integration of the receiving area in a front or rear storage area of the interior trim can be done in a particularly simple manner, comparatively elegant and barely perceptible to the vehicle occupants.

According to a further embodiment, the receiving area for the dehumidifying device is arranged in the interior of an air vent of a ventilation arrangement or in the interior of an air-guiding channel of the ventilation arrangement. The receiving area typically has an uninterrupted or non-interruptible flow connection to the vehicle interior, even if it should be arranged at a certain distance from the vehicle interior due to its arrangement in the air duct.

The arrangement of the dehumidifying device in an air-conducting duct or in an air vent proves to be advantageous for particularly effective dehumidification of the indoor air. The air supplied to the interior or taken from the interior by means of the recirculation mode and, for example, conveyed by means of a fan through the air-conducting duct or through the air vent, can in this way particularly effectively apply air to be dehumidified by means of the dehumidifying device, in particular through its air-permeable container.

According to a further embodiment, the receiving area is closed off from the interior by an air-permeable cover. The cover can in particular be embedded flush with the interior lining adjoining the receiving area or be arranged therein. The cover can be designed, for example, as an air-permeable mesh or as an air-permeable fabric, so that mechanical accessibility to the interior of the receiving area and thus also to the dehumidifying device is prevented but at the same time air to be dehumidified flowing around the dehumidifying device is ensured.

According to a further embodiment, the cover has an air-permeable grid. The grid can be designed as a dimensionally stable grid. When integrated or arranged in an air vent, the air-permeable grille can coincide with lamellae of the air vent or with a fixed, outlet-side grille structure of the air vent. The air vent, which is to be provided on the interior cladding or to be integrated into it, can anyway have an air-permeable grille on the outlet side or a corresponding grille structure constructed with movable or fixed slats, which can also function as a cover for the receiving area of the dehumidifying device.

According to a further embodiment, the receiving area has a holder for the dehumidifying device. The holder can in particular be coupled or connected mechanically to the air-permeable container of the dehumidifying device. In particular, the air-permeable container of the dehumidifying device can be attached to the holder in a detachable or non-detachable manner. The holder ensures stable and permanent positioning of the dehumidifying device or its air-permeable container in the receiving area. This can counteract an otherwise undesirable development of noise due to relative movements between the dehumidifying device and the receiving area.

The holder for the dehumidifying device can in particular be designed as an air-permeable holder. In this way, a supposedly negative influence of the holder on the air circulation in the immediate vicinity of the dehumidifying device can be reduced to a minimum. The design of the holder as an air-permeable grid also makes it possible for the holder to form a shelf for the dehumidifying device or for its air-permeable container, which can be positioned on the air-permeable grid, the dehumidifying device or its air-permeable container on the air-permeable grid or can be arranged on the bracket and possibly fixed.

Such a configuration is particularly advantageous for the integration of the dehumidifying device in an air-conducting duct or in an air vent of a ventilation arrangement. The air provided via an air-conducting duct can flow into the receiving area via the bracket on the bottom, for example, or via the air-permeable grille on the bottom, then flow around or through the air-permeable container and then flow into the vehicle interior through the air-permeable cover of the receiving area.

According to a further embodiment, the container has an air-permeable perforation, an air-permeable fabric, an air-permeable knitted fabric or an air-permeable film. The container can be made of a comparatively rigid material, for example as a plastic container with a perforation. The container can, however, also be designed as a flexible bag or as a sachet, the container being, for example, flexible and deformable, adaptable to the geometry of the receiving area.

According to a further embodiment, the moisture-absorbing material has granules. The moisture-absorbing material can also be configured as granules. The grain size of the granules is typically larger than a mesh or pore size of the air-permeable container, so that the granules remain inside the container.

The granulate can function as an absorption medium and / or as an adsorption medium. Depending on the humidity of the indoor air, the moisture-absorbing material can absorb and / or adsorb moisture from the indoor air, in particular when the air humidity is high. If the air humidity in the interior is comparatively low, the moisture-absorbing material can also function again to release moisture to the interior air and thus contribute to a comparatively homogeneous air humidity in the interior that is pleasant for the vehicle occupants.

The moisture-absorbing material can also have an odor-forming function. In this respect, the moisture-absorbing material can also be designed as an odor-absorbing material and absorb unpleasant odors from the indoor air, typically permanently absorb them.

According to a further embodiment, the liquid-absorbing material comprises silica gel, silica gel, amorphous silicon dioxide, natural or synthetic zeolites, a hygroscopic liquid, clay granules, salts, starch or combinations formed therefrom. Each of these materials or mixtures formed therefrom and typically have hygroscopic properties in order to adsorb moisture from the air and, if necessary, to absorb it.

According to a further embodiment, the dehumidifying device can be arranged interchangeably in the receiving area. The receiving area can be closed, for example, with a removable, air-permeable cover so that, if necessary, or at regular intervals, the dehumidifying device or the moisture-absorbing material present therein can be replaced.

According to a further aspect, the present development relates to a ventilation arrangement for the interior of a motor vehicle. The ventilation arrangement has at least one air-conducting channel and an air vent that is in flow connection therewith and can be integrated into an interior lining of the motor vehicle. A dehumidifying device is arranged in the air-guiding duct or in the air vent, which has an air-permeable container in which moisture-absorbing material is arranged. In this case, the air vent or the air-guiding channel can have a previously described receiving area for the dehumidifying device or form one. The receiving area can already be inherently present in the air vent or in the air-conducting duct, so that the dehumidifying device can also be retrofitted without any problems for existing ventilation arrangements, in particular for their air-conducting ducts and / or air vents.

According to a further embodiment of the ventilation arrangement, it has at least one fan and optionally a heating and / or cooling device, which is in flow connection with the air-conducting channel. In such operating states of the ventilation arrangement in which, for example, the heating device is activated, heat or thermal energy can be supplied to the dehumidifying device, by means of which the moisture-absorbing material can be dried as required.

According to a further embodiment of the ventilation arrangement, the air-conducting channel or the air vent has a recess in which the dehumidifying device can be arranged or in which the dehumidifying device is arranged. The air vent or the air-conducting channel can, for example, have a recess in a side wall, in or on which the dehumidifying device or its air-permeable container can be arranged. In other configurations, in particular in the case of air vents, which are arranged directly below and possibly adjacent to a front window or a rear window of a motor vehicle and are designed to generate a comparatively diffuse, broadly fanned air flow, the dehumidifying device can also be spaced apart from a side wall of an air-conducting duct or spaced apart be arranged from a side wall of the air vent. In this way, the dehumidifying device can be surrounded by supplied air to be dehumidified from all sides.

Figure list

• 1 eine schematische Seitenansicht eines Kraftfahrzeugs
• 2 eine schematische geschnittene Darstellung einer an eine Frontscheibe angrenzenden Innenraumverkleidung,
• 3 eine schematische, geschnittene Darstellung einer an eine Heckscheibe angrenzenden Innenraumverkleidung,
• 4 eine Draufsicht von oben auf eine Armaturentafel,
• 5 eine Querschnitt durch die Armaturentafel gemäß 4 und
• 6 eine teils geschnittene perspektivische Darstellung der 5.

Further goals, features and advantageous configurations of the present development are explained in the following description of an exemplary embodiment. Here show:

• 1 a schematic side view of a motor vehicle
• 2 a schematic sectional illustration of an interior trim adjoining a windshield,
• 3 a schematic, sectioned representation of an interior trim adjoining a rear window,
• 4th a top view from above of an instrument panel,
• 5 a cross section through the dashboard according to 4th and
• 6th a partially cut perspective view of the 5 .

Detailed description

This in 1 schematically shown motor vehicle 1 has a motor vehicle body 2 with an interior 3 which acts as a passenger compartment. The interior 3 is in the direction of travel of the motor vehicle 1 from a windshield 4th and bounded against the direction of travel by a rear window 6. Inside and adjacent to a base area of the windshield 4th is a dashboard 10 arranged, which is a region of an interior trim 12th forms. The interior trim points at the rear 12th approximately adjacent to a lower base area of the rear window 4th a hat rack on. The parcel shelf functions as a rear storage area 13th , which extends essentially in the vehicle longitudinal direction (x) and in the vehicle transverse direction (y). A top of the dashboard 10 acts as a storage area on the front 11 , which also extends essentially in the plane formed by the vehicle longitudinal direction and the vehicle transverse direction. The front storage area 11 extends below a lower base area of the windshield 4th . The interior 3 facing extends in front of the dashboard 10 a steering wheel 17.

In 2 is an embodiment of a dehumidifying device 30th for the motor vehicle interior 3 shown. The dehumidifier 30th is there in the interior trim 12th , more precisely in the storage area on the front 11 in the area below the windshield 4th integrated. In this area, the interior lining 12th a recording area 22nd for the dehumidifier 30th on.

The recording area 22nd has one in the interior trim 12th , or in the storage area 11 taken in recording 50 with a depression 52 on. In the recess 52 , therefore in the recording 50 is the dehumidifier 30th arranged. The dehumidifier 30th has an air-permeable container 32 on, in which a moisture-absorbing material 34 , for example in the form of granules 36 is arranged.

Upwards or flush with the interior trim 12th a cover is integrated 54 provided which the recess 52 or the recording 50 covered and opposite the interior 3 separates. The cover 54 is designed to be air-permeable. It can be an air-permeable fabric, knitted fabric or an air-permeable grid 56 exhibit.

In the embodiment according to 3 is the dehumidifier 30th Arranged at the rear. Here's the one for the dehumidifier 30th designated recording area 22nd in a rear shelf or in the rear storage area 13th the interior trim 12th integrated or embedded therein. There, too, is similar to that of the 2 described, a recording 50 with a depression 52 provided in which the dehumidifier 30th , hence their air-permeable container 32 is arranged. That recording too 50 or deepening 52 is of an air-permeable cover 54 covered or locked.

In the further refinement of an embodiment according to FIG 4th to 6th is the dehumidifier 30th into a ventilation arrangement 16 for the motor vehicle interior 3 integrated. The ventilation arrangement 16 typically has an air-conveying fan 20th on, which with a heating and / or cooling device 21 is in flow connection. The ventilation arrangement 16 furthermore has at least one air duct 18th on which one with the blower 20th or with the heating and / or cooling device 21 is in flow connection. The air-conducting duct goes downstream or to its downstream end 18th into an air vent 14th over, which in the embodiment shown here is flush with the dashboard 10 , and thus also flush with the interior trim 12th is integrated or embedded there. Across the canal 18th can use the air vent 14th an air flow 19th are fed.

The top view according to 4th shows the at a base area of the windshield 4th adjacent upward-facing storage area 11 the dashboard 10 . In the direction of travel to the air vent 14th adjoining there is a loudspeaker, for example 50 arranged. In the partially cut representations of the 5 and 6th is shown in detail that the air-permeable container 32 with a moisture absorbent material 34 , typically with a granulate 36 is filled. The container 32 is shown here as a cubic container. It can have a container wall 28 with a perforation 44 exhibit. The container 32 can as tissue 40 , as a knitted fabric 41 or as an air-permeable film 42 be designed.

The mesh 40 and the knitted fabric can also be made equally air-permeable. The perforation 44 , or a mesh size of the fabric 40 or the knitted fabric 41 are sized so that the granules 36 is prevented by the container wall 38 to get. Although in the 5 and 6th a rectangular or cubic container 32 shown, the container can 32 , in particular in the case of designs with a woven fabric, knitted fabric or as a film, assume any geometric shape and adapt to the geometric conditions of the receiving area as required 22nd , or the recording 50 or the deepening 52 cuddle up and adapt.

As in particular in the 5 and 6th shown, the air vent 14th one from above or from the interior 3 intake accessible to air 50 and one in the interior trim 12th recessed recess 52 on. Inside the air vent 14th is also a holder through which air can flow 58 intended. The bracket 58 can be designed as an air-permeable rigid grid, which has opposite end sections on the inside of a side wall of the air vent 14th can be arranged. About the bracket 58 can use the dehumidifier 30th positionally stable inside the air vent 14th be positioned.

To the outside, or in the direction of the vehicle interior 3 indicates the air vent 14th an air-permeable cover 54 for receiving 50 or for deepening 52 on. The cover 54 can be used as a dimensionally stable grid 56 be designed, which, for example, flush into the laterally adjoining interior paneling 12th can be embedded or arranged flush on this.

The illustrated embodiments only show possible configurations of the development, for which numerous further variants are conceivable in the course of the development. The exemplary embodiments shown are in no way to be interpreted as restrictive with regard to the scope, the applicability or the configuration options of the development. The present description shows the person skilled in the art only one or a few possible implementation (s) of an exemplary embodiment. A wide variety of modifications can be made to the function and arrangement of the elements described without departing from the scope of protection defined by the following claims or its equivalents.

List of reference symbols

1

Motor vehicle

2

Motor vehicle body

3

inner space

4th

Windshield

5

rear window

10

Dashboard

11

Storage area

12th

Interior trim

13th

Storage area

14th

Air vents

15th

speaker

16

Ventilation arrangement

18th

air duct

19th

Air flow

20th

fan

21

Heating and / or cooling device

22nd

Recording area

30th

Dehumidifying device

32

container

34

material

36

granules

38

Container wall

40

tissue

41

Knitted fabrics

42

foil

44

perforation

50

admission

52

deepening

54

cover

56

Grid

58

bracket

60

Grid

QUOTES INCLUDED IN THE DESCRIPTION

This list of the documents listed by the applicant was generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Patent literature cited

• DE 102016224775 A1 [0002]

Claims (15)

Motor vehicle (1) with a motor vehicle body (2), an interior (3) and a dehumidifying device (30) for the interior (3), the interior (3) having an interior lining (12) and the dehumidifying device (30) in one of the interior lining (12) concealed or in the interior lining (12) integrated receiving area (22) is arranged, which is in flow connection with the interior (3) and wherein the dehumidifying device (30) has an air-permeable container (32) in which moisture absorbing Material (34) is arranged. Motor vehicle (1) according to one of the preceding claims, wherein the receiving area (22) has a recess (50) embedded in the interior lining (12) with a recess (52) in which the dehumidifying device (30) is arranged. Motor vehicle (1) according to one of the preceding claims, wherein the receiving area (22) is embedded in or in a front or rear storage area (11, 13) of the interior trim (12) extending essentially in the vehicle longitudinal direction (x) and vehicle transverse direction (y) is integrated. Motor vehicle (1) according to one of the preceding claims, wherein the receiving area (22) is arranged in the interior of an air vent (14) of a ventilation arrangement (16) or in the interior of an air-guiding channel (18) of the ventilation arrangement (16). Motor vehicle (1) according to one of the preceding claims, wherein the receiving area (22) is closed off from the interior (3) by an air-permeable cover (54). Motor vehicle (1) according to Claim 5 wherein the cover (54) has an air-permeable grid (56). Motor vehicle (1) according to one of the preceding claims, wherein the receiving area (22) has a holder (58) for the dehumidifying device (30). Motor vehicle (1) according to Claim 7 wherein the holder (58) has an air-permeable grille (60). Motor vehicle (1) according to one of the preceding claims, wherein the container (52) has an air-permeable perforation (44), an air-permeable fabric (40), an air-permeable knitted fabric (41) or an air-permeable film (42). Motor vehicle (1) according to one of the preceding claims, wherein the moisture-absorbing material (34) is a granulate (36). Motor vehicle (1) according to one of the preceding claims, wherein the liquid-absorbing material comprises silica gel, silica gel, amorphous silicon dioxide, natural or synthetic zeolites, a hygroscopic liquid, clay granules, salts, starch or combinations thereof. Motor vehicle (1) according to one of the preceding claims, wherein the dehumidifying device (30) can be arranged interchangeably in the receiving area (22). Ventilation arrangement for the interior (3) of a motor vehicle (1), with at least one air-conducting duct (18) and with an air vent (14) which is in flow connection therewith and which can be integrated into an interior lining (12) of the motor vehicle (1), wherein in the air-guiding duct (18) or in the air vent (14) a dehumidifying device (30) is arranged, which has an air-permeable container (32) in which moisture-absorbing material (34) is arranged. Ventilation arrangement according to Claim 13 which also has at least one fan (20) and optionally a heating and / or cooling device (21) which is in flow connection with the air-conducting channel (18). Ventilation arrangement according to Claim 13 or 14th , wherein the air-conducting channel (18) or the air vent (14) has a recess (52) in which the dehumidifying device (30) can be arranged or in which the dehumidifying device (30) is arranged.

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