JPH04306126A - Solar cover - Google Patents

Abstract

PURPOSE:To obtain a solar cover, the construction member of which existing in the lower part of a curved glass coating layer is observed in good condition eve when the cover is used for a long time. CONSTITUTION:The thickness of a glass coating layer 15 is less than 3mm, and the glass coating layer 15 is not loaded but is thermally curved, and a ceramic screen print pattern 22 is provided on the side directed to a solar cell layer 14, while the glass coating layer 15 is adhered to an adhesion layer 17 directed to the coating layer 15 of a solar compound 25 including the solar cell layer 14.

Description

[Detailed description of the invention]

0001

[Industrial Application Field] The present invention is applicable to sliding roofs, sliding tilt roofs, etc. of vehicles having a crystalline solar cell layer between an inner metal support layer and an outer curved glass coating layer having a thickness of less than 3 mm. Regarding solar covers.

0002

[Prior art] West German utility model registration NO. 8532154
In the case of a known solar cover of this kind in No. 1, the glass cladding layer consists of a thin chemically loaded (chemically strengthened) glass.

0003

However, chemically loaded (strengthened) glass is expensive and increases the cost of materials for solar covers. Additionally, chemically loaded or strengthened coverglasses could not be ceramic screen printed to covertly cover structural elements (eg, brazing filler metals, conductive tracks, etc.). This is due to the loss of chemical loading or reinforcing effects when the ceramic screen printing material is melted.

This problem cannot be eliminated even by using organic screen printing materials or by introducing color films. This is because in such cases, significant peeling phenomena or discoloration occur, at least in the peripheral area of the cover. This discoloration is due to the action of ultraviolet light and/or to the diffusion of moisture. Furthermore, if the glass thickness is 3 mm or more, in practice thermally loaded or tempered single-pane safety glass exhibiting a curved break line permissible for the car in the event of an accident is used, but this is not necessary for solar cover cladding. When using chemically loaded glasses of this type, the total thickness of the solar cover is necessarily greater than that of conventional so-called glass covers, ie transparent covers without solar cells. Therefore, a complicated and expensive special structure is required for the connecting member of the vehicle roof.

[0005] Also, uncured glass exhibits fracture behavior when damaged, resulting in long fragments that are unacceptable in automobile manufacturing. For automobile manufacturing, this type of glass must be used as laminated glass. SUMMARY OF THE INVENTION In view of the above-mentioned problems, the present invention has created a solar cover that is relatively inexpensive to manufacture and that, even over long periods of use, reliably prevents undesirable visibility of structural elements beneath the glass cladding. The purpose is to live.

[0006]

[Means for Solving the Problems] In order to achieve the above object, the present invention takes the following technical measures. That is, in a solar cover such as a sliding roof or a sliding tilt roof of a vehicle having a crystalline solar cell layer between an inner metal support layer and an outer curved glass covering layer having a thickness of less than 3 mm, the glass covering layer is used. , characterized in that it is thermally curved without loading and is provided with a ceramic screen-printed pattern on the side facing the solar cells and adhered to an adhesive layer facing the glass cladding layer of the solar compound containing the solar cell layer. It is said that

[0007]

In the case of the solar cover according to the invention, in the event of damage, the generated fragments of the glass covering layer are adhered and held by the adhesive layer of the solar compound facing the glass covering layer. Furthermore, since the inner layer of the solar cover is a metal carrier layer, the solar cover appears as a metal cover from inside the vehicle.

[0008] At this time, in a known manner (West German published patent N
O. Particularly robust layer compounds are obtained if a transparent adhesive film is introduced between the solar layer and the metal carrier layer and the glass covering layer. The solar cell layer expediently consists of solar cells or solar panels made of P-n-doped monocrystalline or polycrystalline semiconductor material, connecting the solar cells or solar panels to each other and to the output terminals. Advantageously, the bonding brazing material bonded to is covered by a screen-printed pattern. This allows at least a portion of the screen-printed pattern to extend along the edge of the solar cover.

The total thickness of the layer compound of the solar cover is between 3 and 6 mm (preferably between 4.5 mm and 5 mm).
If so, it is advantageous. Also, since the total thickness of this layer compound corresponds to the thickness of a normal glass cover, the connecting parts of the sliding roof can be identical to the connecting parts of a normal glass cover, e.g. It is expedient to surround it with foam material. in this case,
It is advantageous if the upper surface of the foam is flush with the upper surface of the glass covering layer. West German published patent no. In the embodiment of the known solar cover from No. 3,742,719, the foam material advantageously consists of polyurethane or a mixture thereof, which can extend beyond a part of the cover support.

0010

Embodiments Hereinafter, embodiments of the present invention will be described in detail based on the drawings. In the drawings, FIG. 1 is a partially cutaway plan view of the solar cover, and FIG. 2 is a partially enlarged sectional view taken along line II--II in FIG. The solar cover, indicated generally at 10, is supported by a cover inner panel 11 which is coupled to a functional part 12 of a drive mechanism (not shown) of the solar cover 10 and which surrounds the edges of the solar cover. The above drive mechanism includes slide roof, slide tilt roof, tilt roof,
It can be designed in a manner commonly used for spoiler roofs, ventilation roofs, etc.

The solar cover 10 comprises a layer compound 26 comprising a metal support layer 13 attached to the cover inner panel 11, a solar cell layer 14 and a glass cladding layer 15.
has. This layer 26 is curved to correspond to the contour of the vehicle roof. In order to bond the layer compounds 26 to each other, a transparent adhesive film 16 is introduced between the metal carrier layer 13 and the solar cell layer 14 and a transparent adhesive film 16 is introduced between the solar cell layer 14 and the glass covering layer 15. A transparent adhesive film 17 is provided. In this case, the series of layers (adhesive film 16, solar cell layer 14, adhesive film 17) is called a solar compound 25.

Solar cell layer 14 is comprised of a series of spaced apart solar cells or solar panels 18 of Pn-doped monocrystalline or polycrystalline semiconductor material (eg, silicon). ing. Each solar cell or solar panel 18 is connected to each other and to an output terminal 19 via a bonding braze 20 and a conductive track 21 serving as a busbar (see especially FIG. 1).

The thickness of the glass covering layer 15 is expediently less than 3 mm and in the range from 1 to 2.5 mm. This glass covering layer 15 is thermally curved, but is not loaded or hardened, as in the case of flat glass with a thickness of 3 mm or more. The side of the glass covering layer 15 facing the solar cell layer 14 is coated with a ceramic screen-print pattern 22 . This screen print pattern 22 consists of a ceramic screen print material fused to the relevant side of the glass covering layer 15.

A portion 22a of the screen printed pattern 22 extends along the edge of the solar cover;
In this case, the output terminal 19 and the conductive path 21 are covered (Fig.
reference) . In the embodiment of FIG. 1, another strip-like portion 22b of the screen-printed pattern 22 shields the underlying bonding braze 20 from view. solar·
The total thickness D of the layer compound 26 of the cover corresponds to the thickness of a typical glass cover. In this case, the total thickness D is 3
~6mm (preferably 4.5~5mm).

The edges of the layer compound 26 of the solar cover are surrounded by a foam material 23. In this case, as shown in FIG. 2, the upper surface of the foam material 23 is
Advantageously, it is flush with the upper surface of the adjacent edge of 5. Foam material 23 extends beyond a portion 24 of cover inner panel 11 . Particularly preferred foam material 23 is polyurethane or a mixture thereof.

At least the side of the metal support layer 13 facing the glass covering layer 15 is primed and coated with a final lacquer that is resistant to ultraviolet light. As the adhesive films 16 and 17, highly transparent adhesive films that have an affinity for the foam material 23 (for example, films made of ethylene-vinyl acetate copolymer (EVA), polyvinyl butyral (PVB), etc.) are suitable. . In this case, the glass is particularly suitable as an inorganic glass, soda lime glass.

[0017]

Effects of the Invention In the solar cover 10 of the present invention, the glass covering layer 15 is thermally curved without being loaded, and the side facing the solar cell layer 14 is provided with a ceramic screen-printed pattern 22. glass coating layer 1
The generated fragments of No. 5 are adhered and held by an adhesive film 17 facing the glass coating layer 15 of the solar compound 25 containing the solar cell layer 14, and the inner layer of the solar cover 10 is a metal support layer 13. As a result, the solar cover of the present invention is visible as a metal cover from inside the vehicle and reliably prevents structural elements underlying the glass cladding layer 15 from becoming undesirably visible, even during long-term use. can.

Furthermore, the solar cover of the present invention can be manufactured at relatively low cost due to the above structure.

[Brief explanation of the drawing]

FIG. 1 is a partially cutaway plan view of a solar cover in an embodiment of the invention.

FIG. 2 is a partial cross-sectional view taken along line II-II in FIG. 1;

[Explanation of symbols]

10 Solar cover 13 Metal support layer 14 Solar cell layer 15 Glass coating layer 16 Adhesive film 17 Adhesive film 18 Solar panel 20 Bonding brazing material 22 Ceramic screen print pattern 25
Solar Compound 26 Layer Compound D Total Thickness of Layer Compound

Claims (11)

[Claims] Claim 1. A solar cover such as a sliding roof or a sliding tilt roof of a vehicle having a crystalline solar cell layer between an inner metal support layer and an outer curved glass coating layer having a thickness of less than 3 mm. Covering layer (1
5) is thermally curved without being loaded and is provided with a ceramic screen-printed pattern (22) on the side facing the solar cell layer (14);
Solar cover, characterized in that it is adhered to an adhesive film (17) of an adhesive layer facing said glass covering layer (15) of a solar compound (25) comprising: 4). 2. Solar cover according to claim 1, characterized in that a transparent adhesive film (16) is introduced between the metal support layer (13) and the solar cell layer (14). . 3. A transparent adhesive film (17) is introduced between the solar cell layer (14) and the glass coating layer (15), according to claim 1 or 2. solar cover. 4. The solar cell layer (14) is made of P-n-
4. Solar cover according to claim 1, characterized in that it consists of a solar cell or solar panel (18) made of doped monocrystalline or polycrystalline semiconductor material. 5. The solar cell or solar cell panel (
18) are connected to each other or to the output terminals (19) via a bonding braze (20) or a conductive track (21) covered by a screen-printed pattern (22). Solar cover listed. 6. The screen print pattern (2
6. Solar cover according to one of claims 1 to 5, characterized in that at least a part (22a) of 2) extends along the edge of the solar cover (10). [Claim 7] Solar cover layer compound (
The total thickness (D) of 26) is 3 to 6 mm (preferably,
Claim 1 characterized in that: 4.5 to 5 mm)
The solar cover according to one of items 6 to 6. 8. Solar cover according to claim 1, characterized in that the edges of the layer compound of the solar cover are surrounded by a foam material (23). 9. Solar cover according to claim 8, characterized in that the upper surface of the foam (23) is flush with the upper surface of the edge of the glass covering layer (15). 10. The foam material (23) covers a portion (2) of the cover inner panel (11) which is a cover support member.
4). Claim 8 or 9
solar cover. 11. Solar cover according to claim 8, characterized in that the foam material (23) consists of polyurethane or a polyurethane mixture.