DE102019121093A1 - Fluid-carrying motor vehicle safety composite glass pane as well as motor vehicle equipped with such - Google Patents

Abstract

For the purpose of improved air conditioning of a motor vehicle interior, a motor vehicle laminated safety glass pane (10) with a first pane (10-1), a second pane (10-2) spaced apart from this and an adhesive layer (15) that at least partially connects these two is provided the at least one of the panes (10-1, 10-2) and / or the adhesive layer (15) and / or an intermediate layer (40) formed from a poly (organo) siloxane and located in the adhesive layer (15) is set up at least in places to take in a fluid.

Description

The present invention relates to a motor vehicle laminated safety glass pane according to claim 1 and to a motor vehicle equipped with at least one such according to claim 8.

There has long been a desire to reduce or even completely avoid the heating of motor vehicle interiors due to solar radiation entering through window surfaces located on the motor vehicle. One way of fulfilling this wish is to fill two panes spaced apart from one another with a fluid in order to prevent the transmission of sunlight into the vehicle interior if necessary or to discharge the fluid that is then heated by the sunlight. Corresponding very early examples of this are known from US Pat. No. 2,373,214 and US Pat. No. 2,489,751. A comparatively very new way of fulfilling the wish mentioned is from the WO 2012/118956 A2 known in which an elastomer having microchannels, in particular polymethylsiloxane, is arranged between two disks spaced apart from one another. The microchannels are filled with a fluid with which the transmission of sunlight can be partially or completely prevented. Alternatively or cumulatively, it is provided that the sunlight-heated fluid is discharged.

However, none of the approaches known from the prior art is suitable for use in modern motor vehicle safety composite glass panes in which two panes spaced apart from one another are connected to one another via an adhesive layer.

It is therefore the object of the present invention to provide technical means with which the heating of motor vehicle interiors due to solar radiation can be reduced or even avoided entirely even in the case of laminated safety glass panes of motor vehicles.

This object is achieved by a motor vehicle laminated safety glass pane with a first pane, a second pane spaced apart from it, and an adhesive layer at least partially connecting these two, whereby at least one of the panes and / or the adhesive layer and / or one in the adhesive layer is made of a poly ( organo) siloxane formed intermediate layer is set up at least in places to receive a fluid.

Each of the panes can consist in a manner known per se of a glass, in particular a single-pane safety glass, or a plastic, in particular polycarbonate.

The adhesive layer itself can be formed from polyvinyl butyral in a manner known per se. This can be designed as a pre-assembled product having spaces ready for fluid intake. It is also possible to successively apply the adhesive layer two-dimensionally and / or three-dimensionally at discrete locations, leaving out spaces ready for fluid intake, on one of the panes to which the further pane is then applied. It should be noted that the adhesive layer can be composed of a single layer or a plurality of partial layers.

The fluid for its part can finally be a gas, a gas mixture, in particular air, or a liquid, in particular demineralized water, single or multiple distilled water, or alcohol. It is also possible to provide a glass or all glasses, the adhesive layer and / or the fluid with additives which in particular influence or change the transparency, the reflectivity, the emissivity, the thermal properties and / or the color of the materials mentioned.

At least one throttle and shut-off means can be provided in one or some sections of the laminated safety glass pane according to the invention in order to be able to throttle, interrupt or release the flow of the fluid in an advantageous manner.

At least one temperature detection means can be provided on or in the motor vehicle laminated safety glass pane in order to advantageously detect the temperature inside and / or outside the motor vehicle interior and / or inside the laminated motor vehicle safety glass pane. The temperature detection means can advantageously be integrated into the system environment of the motor vehicle, in particular into its on-board electronics, in order to enable thermal and / or optical control of the motor vehicle laminated safety glass pane according to the invention.

With the means disclosed above, a motor vehicle laminated safety glass pane is advantageously created, with which the heat input into a motor vehicle interior can be influenced.

According to a preferred embodiment, at least one of the panes, the adhesive layer and / or the intermediate layer has a plurality of fluid channels which extend in the motor vehicle laminated safety glass pane. The height, width and / or length of the fluid channels, as well as their number and arrangement within the Motor vehicle safety composite glass pane, can be formed at will. In particular, it is possible to arrange the fluid channel or the fluid channels in only one surface section of the motor vehicle laminated safety glass pane, at only discrete points on the motor vehicle laminated safety glass pane or over the entire surface in the laminated motor vehicle safety glass pane. The arrangement can in particular be made in a meandering shape and / or according to bionic design principles, in particular in the manner of a leaf skeleton. Alternatively or cumulatively, it is possible to provide different cross-sectional areas and cross-sectional shapes in one fluid channel, several fluid channels or all fluid channels. As is known per se, these can be flowed through by one or more fluids according to the principle of direct current, cross-current or counter-current. This advantageously enables a heat-optimized design of the laminated safety glass pane according to the invention.

Advantageously, the protruding or protruding adhesive layer and / or intermediate layer forms a connecting section that is operatively connected to a fluid supply line and / or a fluid discharge line with which the fluid can easily flow into and out of the laminated safety glass pane of a motor vehicle. In a particularly advantageous manner, the connecting section is formed in one piece with the adhesive layer and / or intermediate layer.

The adhesive layer and / or the intermediate layer advantageously protrude at least partially from the laminated safety glass pane so that a fluid connection with other elements located outside the laminated safety glass pane is easily possible.

A particularly good thermal effect of the motor vehicle laminated safety glass pane according to the invention is achieved if at least one of the fluid channels is operatively connected to an air-conditioning means. This makes it possible to conduct a fluid that has been heated or cooled to a desired temperature through the laminated safety glass pane of motor vehicles. Here, too, the advantageous effect of the at least one optionally provided temperature detection means is evident.

This is all the more true if the at least one fluid channel and the air conditioning means are designed as a closed system.

In principle, the motor vehicle laminated safety glass pane according to the invention can be connected to an air-conditioning device located in the motor vehicle. According to a preferred embodiment, an air conditioning means is arranged adjacent to the first pane or the second pane. This makes it possible in an advantageous manner to form a roof module or module roof.

According to a further preferred embodiment, the motor vehicle laminated safety glass pane according to the invention is designed to be arranged in or as the roof of a motor vehicle.

It should be noted that the laminated glass pane according to the invention can have a heat reflection layer and / or an LC (Liquid Crystal), PDLC (Polymer Dispersed Liquid Crystal), SPD (Suspended Particles Device) or electrochromatic coating or film in order to reduce the heat input through the motor vehicle safety laminated glass pane reduce or enable their shading and / or color change.

In a particularly advantageous manner, there is at least one layer with solar cells, in particular at least one layer with an organic solar film, in the area, preferably above, of fluid channels. If a comparatively cool fluid flows through the latter in summer, the efficiency of the solar cells can advantageously be further improved.

The aforementioned object is also achieved by a motor vehicle with at least one motor vehicle laminated safety glass pane of the type disclosed above. The advantages outlined above apply adequately.

According to a preferred embodiment, the air conditioning means provided for the laminated safety glass pane of a motor vehicle is operatively connected to an air conditioning means located in the motor vehicle or is designed as such.

According to a further preferred embodiment, the at least one motor vehicle laminated safety glass pane has at least one fluid supply line and / or fluid discharge line which is operatively connected to at least one fluid channel and which is at least partially guided on a body element of the motor vehicle, in particular its A-pillar or B-pillar. It is thus advantageously possible, in particular, to secure connections for lines through which the fluid flows, and for corresponding lines themselves, securely and reliably close to the body.

• 1 ist eine Draufsicht auf ein schematisch dargestelltes Dach eines Kraftfahrzeuges mit einer Kraftfahrzeugsicherheitsverbundglasscheibe.
• 2 ist eine Draufsicht auf ein schematisch dargestelltes Dach eines Kraftfahrzeuges mit einer gegenüber der in 1 gezeigten Kraftfahrzeugsicherheitsverbundglasscheibe alternativen Kraftfahrzeugsicherheitsverbundglasscheibe.
• 3 ist eine Draufsicht auf ein schematisch dargestelltes Dach eines Kraftfahrzeuges mit einer gegenüber den in 1 und 2 gezeigten Kraftfahrzeugsicherheitsverbundglasscheiben alternativen Kraftfahrzeugsicherheitsverbundglasscheibe.
• 4A bis 4D stellen Abschnitte von vier verschiedenen Kraftfahrzeugsicherheitsverbundglasscheiben in Querschnittsansicht dar.
• 5A ist eine Draufsicht auf ein schematisch dargestelltes Dach eines Kraftfahrzeuges mit einer gegenüber den in 1 bis 3 gezeigten Kraftfahrzeugsicherheitsverbundglasscheiben alternativen Kraftfahrzeugsicherheitsverbundglasscheibe.
• 5B stellt eine teilweise Schnittansicht durch das in 5A dargestellte Dach dar.

A detailed, non-prejudicial, in particular, is given below with reference to the attached figures, which are not to scale restrictive, description of exemplary embodiments of the present invention:

• 1 is a plan view of a schematically illustrated roof of a motor vehicle with a motor vehicle laminated safety glass pane.
• 2 FIG. 13 is a plan view of a schematically illustrated roof of a motor vehicle with an opposite to that in FIG 1 Motor vehicle safety composite glass pane shown alternative motor vehicle safety composite glass pane.
• 3 FIG. 11 is a plan view of a schematically illustrated roof of a motor vehicle with a roof compared to that in FIG 1 and 2 Motor vehicle safety composite glass panes shown alternative motor vehicle safety composite glass pane.
• 4A to 4D represent sections of four different automotive safety composite glass panes in cross-sectional view.
• 5A FIG. 11 is a plan view of a schematically illustrated roof of a motor vehicle with a roof compared to that in FIG 1 to 3 Motor vehicle safety composite glass panes shown alternative motor vehicle safety composite glass pane.
• 5B FIG. 11 is a partial sectional view through the FIG 5A shown roof.

According to 1 includes a symbolically represented motor vehicle 1 a roof 5 , in which a motor vehicle safety composite glass pane 10 is attached. The automotive safety composite glass pane 10 includes a first disc 10-1 and a second disk arranged below this 10-2 , between which there is an adhesive layer connecting the two 15th is located. The adhesive layer 15th is large over the two panes 10-1 , 10-2 distributed and protrudes over the respective outer edge of the discs 10-1 and 10-2 beyond, as based on the adhesive layer overhang area 15-1 can be seen.

According to this exemplary embodiment, the motor vehicle interior, not shown in greater detail here, is in four of the roof 5 covered virtual quadrants, of which the first quadrant I is the front area F of the motor vehicle 1 adjacent left (corresponding to the area of a driver's seat not shown here in a left-hand drive vehicle), the second quadrant II adjacent to the first quadrant I, the front area F (corresponding to the area of a passenger seat, not shown here, in a left-hand drive vehicle), the third quadrant III behind the second quadrant II is the stern area H and the fourth quadrant IV is adjacent to the third quadrant III of the stern area.

In the roof 5 , and between the two discs 10-1 and 10-2 , there is a fluid channel 20th , the one not shown here, by means of a in the front area F of the motor vehicle 1 located, trained as a known air conditioner air conditioning means 25th is tempered. The fluid flows in accordance with the 1 Direction indicated by the arrows from the air conditioning means 25th via a fluid supply line 25-1 in a first connecting section 20-1 of the fluid channel 20th . The first connection section 20-1 is located in the adhesive layer protrusion area 15-1 and forms a connection of the fluid supply line 25-1 to the one between the two discs 10-1 and 10-2 located fluid channel 20th .

Again 1 can be seen, the fluid channel meanders 20th , starting from the first connection section 20-1 initially in a fluid channel section arranged on the outside of the vehicle in quadrants I and IV 20-3 from the front area F in the direction of the rear area H, and then in the opposite direction in a second fluid channel section located inside the vehicle 20-4 to meander. This has a meandering fluid channel section located on the inside of the vehicle but located in quadrants II and III 20-5 fluidically connected, so that the fluid is able to flow again from the front area F to the rear area H. By a meandering fluid channel section located on the outside of the vehicle in quadrants III and II 20-6 the fluid flows from the rear area H to the front area F. Via one in the adhesive protrusion area 15-1 located second connection section 20-7 and a fluid discharge line connected to it 25-2 the fluid flows back into the air conditioning means 25th .

According to the in 1 The embodiment shown is in the laminated safety glass pane according to the invention 10 only a single fluid channel 20th intended. In 2 an alternative embodiment is now shown in which in the laminated safety glass pane of the invention 10 two independent of each other, but on a single air conditioning means 25th connected fluid channels 20 ' or. 20 " are housed. The fluid channel is located here 20 ' in quadrants I and IV, while the fluid channel 20 " is located in quadrants II and III.

In relation to the fluid channel 20 ' the fluid flows in accordance with the 2 Direction indicated by the arrows from the air conditioning means 25th via a fluid supply line 25-1 ' in a first connecting section 20-1 ' of the fluid channel 20 ' . The first connection section 20-1 ' is in the adhesive layer overhang area 15-1 and forms a connection of the fluid supply line 25-1 ' to the one between the two discs 10-1 and 10-2 located fluid channel 20 ' .

The fluid channel 20 ' meanders, starting from the first connecting section 20-1 ' initially in a fluid channel section arranged on the outside of the vehicle 20-3 ' from the front area F in the direction of the rear area H, and then in the opposite direction in a second fluid channel section located inside the vehicle 20-4 ' to meander. About one in the glue overhang area 15-1 located second connection section 20-7 ' and a fluid discharge line connected to it 25-2 ' the fluid flows back into the air conditioning means 25th .

In relation to the fluid channel 20 " the fluid flows in accordance with the 2 Direction indicated by the arrows from the air conditioning means 25th via a fluid supply line 25-1 " in a first connecting section 20-1 " of the fluid channel 20 '''. The first connection section 20-1 " is located in the adhesive layer protrusion area 15-1 and forms a connection of the fluid supply line 25-1 " to the one between the two discs 10-1 and 10-2 located fluid channel 20 " .

The fluid channel 20 " meanders, starting from the first connecting section 20-1 ' initially in a fluid channel section arranged on the outside of the vehicle 20-3 " from the front area F in the direction of the rear area H, and then in the opposite direction in a second fluid channel section located inside the vehicle 20-4 " to meander. About one in the glue overhang area 15-1 located second connection section 20-7 " and a fluid discharge line connected to it 25-2 " the fluid flows back into the air conditioning means 25th .

In the fluid channel 20 ' is a first throttle and shut-off means 30 ' , and in the fluid channel 20 " a second throttle and shut-off means 30 " fluidically connected. The two throttle and shut-off means 30 ' , 30 " are set up to throttle, interrupt and release the respective flow of the fluid, whereby the distribution of the temperature in the motor vehicle safety composite glass pane 10 can be changed or kept constant.

In 3 is a further alternative embodiment of a motor vehicle safety composite glass pane 10 shown. Although this has as with reference 2 described two independently operable fluid channels 20 ' , 20 " on, however, it is an air conditioning means designed as an air conditioning system 25th on the roof 5 located even in the rear area H. There are still neither a throttle nor a shut-off device 30 ' , 30 " , another adhesive layer overhang area 15th available. Rather, the fluid supply lines are 25-1 ' , 25-1 " and the fluid channels 20 ' , 20 " directly with each other and omitting the first connecting sections 20-1 ' , 20-1 " and the second connecting sections 20-7 ' , 20-7 " connected to each other. Compared to the in 1 and 2 The embodiments shown are the two fluid channels 20 ' , 20 " further spaced from the front area F.

The meander shape of the 1 to 3 fluid channels shown 20th , 20 ' and 20 " is essentially the same. But this is not necessarily the case. Rather, a different number and / or different shapes, directions, arrangements, sizes, etc. of the fluid channels than those shown here can also be used 20th , 20 ' and 20 " be provided. It is therefore conceivable not to provide a meander shape but one or more other geometric shapes and patterns, in particular patterns designed according to bionic principles.

While in the 1 to 3 various embodiments of motor vehicle safety composite glass panes 10 have been described in plan view are intended in the following four 4A to 4D various embodiments of spatially limited cross-sections through automotive safety composite glass panes 10 being represented.

All in the 4A to 4D automotive safety composite glass panes shown 10 What is common is that it is one in the vertical direction of the vehicle 1 looks at the first disc at the top 10-1 and a second disk spaced thereunder 10-2 exhibit.

The ones in the 4A shown first disc 10-1 is on its inside with a heat reflective layer 35 provided, with which sunlight shining in from above, not shown here, can at least partially be reflected back to the outside. Between the heat reflective layer 35 and the second disc 10-2 there is an adhesive layer made of polyvinyl butyral 15th showing the two discs 10-1 and 10-2 glued together. In the adhesive layer 15th are fluid channels 20th arranged through which a fluid, not shown here, corresponding to the in the 1 to 3 shown species is able to flow.

One compared to the embodiment according to 4A alternative embodiment is in 4B reproduced. There is no heat reflective layer on this one 35 , but an intermediate layer consisting of a poly (organo) siloxane 40 in the adhesive layer 15th intended. Thus, openings in the adhesive layer 15th and the intermediate layer 40 the fluid channels 20th out.

One compared to the embodiments according to 4A and 4B another alternative embodiment is shown in FIG 4C reproduced. In this heat-reflecting layer-free design, there are in the adhesive layer 15th Openings are present in which, for example, line means made of a silicone 45 are included, in which the fluid, not shown here, is able to flow. The line means 45 are partly against the first disc 10-1 or second disc 10-2 so that there is no connection of the adhesive layer at these points 15th and first disc 10-1 or second disc 10-2 is available.

The ones in the 4A to 4C disks shown 10-1 , 10-2 indicated opposite flat surfaces. In contrast, the in 4D illustrated alternative embodiment a first disc 10-1 and a second disc 10-2 with projections pointing towards one another 10-5 on that through the adhesive layer 15th are connected to each other. Between the individual protrusions 10-5 however, there is no adhesive layer 15th provided, but a fluid channel 20th educated.

It goes without saying that individual elements of the exemplary embodiments can also be combined or exchanged with one another. So it is conceivable to use one or more of the in 4C shown line means 45 also in one, several or all of the exemplary embodiments according to FIGS 4A , 4B or 4D to arrange.

In 5A is an additional alternative embodiment of a motor vehicle laminated safety glass pane 10 shown. From the air conditioning agent 25th two fluid supply lines run 25-1 , 25-1 ' each via a connection section 20-1 or 20-2 to a distribution means 50 , through which a fluid, not shown here, in a number of now straight fluid lines 20th through the roof 5 can flow from the front area F to the rear area H. In one in the roof 5 rear area collecting means 55 the fluid is diverted so that it is in further fluid channels 20th able to flow back in the direction of the front area F to over a second connecting section 20-7 and a fluid laxative 25-2 back to the climate agent 25th to stream.

As seen from the one cross-section through part of the in 5A shown roof 5 representative 5B As can be seen, those are fluid channels 20th through which the fluid from the front area F, in particular from the distributor means 50 , in the direction of the rear area H, in particular to the collecting means 55 , flows, the first or upper disk 10-1 of the roof 5 arranged adjacent, while those fluid channels 20th through which the fluid from the rear area H, in particular from the collecting means 55 , in the direction of the front area F, in particular in the direction of the distribution means 50 , flows, the second or lower disk 10-2 of the roof 5 are arranged adjacent.

It goes without saying that the shape of the fluid channels shown in the exemplary embodiments 20th , 20 ' or. 20 " can be designed according to the application. So these do not necessarily have to be meandering or straight, or essentially in the longitudinal direction of the roof 5 extend. Rather, the fluid channels 20th , 20 ' or. 20 " have any other suitable shape, for example a spiral, and / or extend substantially in the transverse direction of the roof 5 extend only partially or entirely.

List of reference symbols

1

Motor vehicle

5

top, roof

10

Automotive safety composite glass pane

10-1

first slice

10-2

second disc

10-5

Ledges

15th

Adhesive layer

15-1

Adhesive layer overhang area

20, 20 ', 20 "

Fluid channel

20-1, 20-1 ', 20-1 "

first connection section

20-3, 20-3 ', 20-3 "

Fluid channel section

20-4, 20-4 ', 20-4 "

Fluid channel section

20-5

Fluid channel section

20-6

Fluid channel section

20-7, 20-7 ', 20-7 "

second connection section

25th

Air conditioning means

25-1, 25-1 ', 25-1 "

Fluid supply line

25-2, 25-2 ', 25-2 "

Fluid discharge line

30 ', 30 "

Throttle and shut-off means

35

Heat reflective layer

40

Intermediate layer

45

Conduit means

50

Distribution means

55

Collector funds

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

• WO 2012/118956 A2 [0002]

Claims (10)

Motor vehicle laminated safety glass pane (10), with a first pane (10-1), a second pane (10-2) spaced apart therefrom and an adhesive layer (15) which at least partially connects these two, characterized in that at least one of the panes (10-1 , 10-2) and / or the adhesive layer (15) and / or an intermediate layer (40) formed from a poly (organo) siloxane and located in the adhesive layer (15) is set up at least in places to receive a fluid. Motor vehicle safety composite glass pane (10) according to Claim 1 , characterized in that the at least one pane (10-1, 10-2) and / or the adhesive layer (15) and / or the intermediate layer (45) has a large number of fluid channels extending in their height, width and / or length ( 20, 20 ', 20 "). Motor vehicle laminated safety glass pane (10) according to one of the preceding claims, characterized in that the adhesive layer (15) and / or the intermediate layer (45) protrudes at least partially from the laminated motor vehicle safety glass pane (10). Motor vehicle safety composite glass pane (10) according to Claim 2 or 3 , characterized in that at least one of the fluid channels (20, 20 ', 20 ") is operatively connected to an air-conditioning means (25). Motor vehicle safety composite glass pane (10) according to one of the Claims 2 to 4th , characterized in that the at least one fluid channel (20, 20 ', 20 ") and the air conditioning means (25) are designed as a closed system. Motor vehicle safety composite glass pane (10) according to Claim 4 or 5 , characterized in that the air conditioning means (25) is arranged adjacent to the first pane (10-1) or the second pane (10-2). Motor vehicle laminated safety glass pane (10) according to one of the preceding claims, characterized in that the motor vehicle laminated safety glass pane (10) is designed to be arranged in or as a roof (5) of a motor vehicle (1). Motor vehicle (1), characterized by at least one motor vehicle laminated safety glass pane (10) according to one of the preceding claims. Motor vehicle (1) according to Claim 8 , characterized in that the air conditioning means (25) is operatively connected to an air conditioning means located in the motor vehicle (1) or forms this. Motor vehicle (1) according to Claim 9 , characterized in that the at least one motor vehicle laminated safety glass pane (10) has at least one fluid supply line (25-1, 25-1 ', 25-1 ") and / or fluid discharge line (25-1, 25-1', 25-1") operatively connected to at least one fluid channel (20, 20 ', 20 ") 25-2, 25-1 ', 25-1 "), which is guided on a body element of the motor vehicle (1).

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