Patent ID: 12212107

DETAILED DESCRIPTION OF THE INVENTION

The embodiments herein and the various features and advantageous details thereof are explained more fully with reference to the non-limiting embodiments that are illustrated in the following detailed description. Descriptions of well-known components and processing techniques are omitted so as to not unnecessarily obscure the embodiments herein. The examples used herein are intended merely to facilitate an understanding of ways in which the embodiments herein may be practiced and to further enable those of skill in the art to practice the embodiments herein. Accordingly, the examples should not be construed as limiting the scope of the embodiments herein.

Various modifications to the disclosed embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be applied to other embodiments and applications without departing from the spirit and scope of the present invention. Thus, the present invention is not limited to the embodiments shown, but is to be accorded the widest scope consistent with the claims. The terms like can be, shall be, could be, and other related terms herein disclosed in the foregoing and later parts of the specification in any means do not limit or alter the scope of the present invention. The terms are provided just for the mere understanding of the main invention and its embodiments.

FIG.1illustrates the side view of a standard flat connector (4) design used for electrical connection on glass. The standard flat connector (4) is connected to glass substrate (1) with the help of adhesion material (3). The adhesion material (3) is connected to standard flat connector (4) and conductive silver printing (2) with the help of conductive glue or soldering alloy or both in combination. The adhesion material (3) can also be connected with or without the use of tape. The tape can be of different types from standard to structural bounding tape (SBT) with temperature or IR curing. The conductive silver printing (2) can be with or without black underlay. The conductive silver printing (2) attached to surface is capable of being connected (electrically and adhesively) to a substrate.

FIG.2illustrates the top view of standard flat connector (4). The top view show that the connector is perpendicular to the symmetrical axis of the adhesion area.

FIG.3illustrates the side view when the standard flat connector (4) is pulled perpendicularly to the glass substrate. The pulling force which is also perpendicular to the flat connector (4) plane generates an asymmetric tensile stress on the adhesion material (3), in regards to the symmetry axis of the adhesion area aligned with the pull force axis (dashed line), resulting in a peeling stress on the adhesion material (3). The stress on the adhesion material (3) is not distributed uniformly over its entire surface. This resulting peeling stress leads to low adhesion force required to secure the connection in time. Any tensile test leads to a peeling of the connector instead of a pulling of the full connection surface.

FIG.4illustrates the side view of a new flat connector (5) design used for electrical connection on glass. The new flat connector (5) is connected to glass substrate (1) with the help of adhesion material (3). The adhesion material (3) is connected to flat connector (5) according to the present invention and conductive silver coating with the help of conductive glue or soldering alloy or both in combination. The solder alloy is leaded or lead free or conductive glue and the conductive metal strip is any metal preferably copper. The adhesion material (3) can also be connected with or without the use of tape on insulating film. The tape can be of different types from standard to structural bounding tape (SBT) with temperature or IR curing. The conductive silver printing (2) can be with or without black underlay. The conductive silver printing (2) attached to surface is capable of being connected (electrically and adhesively) to a substrate.

FIG.5illustrates the top view of a flat connector (5) according to the present invention which shows that the connector is perpendicular to the symmetrical axis of the adhesion area (5), according to the present invention. The flat connector (5) according to the present invention is cut with a certain shape in order to avoid peeling effect from one side of adhesion material (3). The shape of cut-out area is not restricted to U shape as shown inFIG.5but can be of any shape until it provides symmetrically distributed stresses on the adhesion area in regards to the defined symmetrical axis. The flat connector (5) according to the present invention can be insulated or not, partially or totally depending upon the requirement.

FIG.6illustrates the side view when the flat connector (5) according to the present invention is pulled perpendicularly to the glass plane. The pulling force which is also perpendicular to flat connector (5) plane generates tensile stresses which, due to the particular cut shape according to the present invention, are distributed symmetrically on the adhesion area as the pull-off axis is aligned with the symmetrical axis of the adhesion area (3). The stress generated on the adhesion material (3) is distributed uniformly along the entire surface of adhesion material (3). The symmetric pulling stress distribution lead to better adhesion strength to secure the connection in time. The new flat connector (5) eliminate the peeling stress on the adhesion material (3) leading to high resistance to pull-off tensile force.

FIG.7illustrates the side view of a flat connector (5) according to the present invention with cut-out design used for electric connection on glass. The flat connector (5) according to the present invention is connected to glass substrate (1) with the help of adhesion material (3). The adhesion material (3) is connected to flat connector (5) according to the present invention and conductive silver printing with the help of conductive glue or soldering alloy or both in combination. The solder alloy is leaded or lead free or conductive glue and the conductive metal strip is any metal preferably copper. The adhesion material (3) can also be connected with or without the use of tape on insulating film. The tape can be of different types from standard to structural bounding tape (SBT) with temperature or IR curing. The conductive silver printing (2) can be with or without black underlay. The conductive silver printing (2) attached to surface which is capable of being connected (electrically and adhesively) to a substrate.

FIG.8illustrates the top view of flat connector (5) according to the present invention with cut-out design which shows that the connector is perpendicular to the symmetrical axis of the adhesion area (5) according to the present invention. The flat connector (5) according to the present invention is cut-out from dedicated area in order to have a tensile pull force centered on the soldered area to avoid peeling effect from one side of adhesion material (3). The shape of cut-out area is not restricted to U shape as shown in FIG. but can be of any shape until it provide the force along the symmetrical axis. The flat connector (5) according to the present invention can be insulated or not, partially or totally depend upon the requirement.

FIG.9andFIG.10illustrates the cross section view along A cut plane. The conductive metal stripe (7) of flat connector (5) according to the present invention is soldered with solder alloy (8), where solder alloy can have lead or completely lead free or even a conductive glue can be used. The conductive metal stripe (7) can be coated with insulation film (6). In case of electric connection by soldering an opening (9) can be performed on the top of the insulation film to allow better heat transmission during the soldering process. A standard tape (3) can be used in addition to the adhesion material in order to help for the positioning before the adhesion by soldering or curing of conductive glue. This tape can also increase the adhesion strength in case of use of structural bounding tape (SBT) with temperature or IR curing

FIG.11andFIG.12illustrates the cross section view along B cut plane. The conductive metal stripe (7) of flat connector (5) according to the present invention is soldered with solder alloy (8), where solder alloy can have lead or completely lead free or even a conductive glue can be used. The conductive metal stripe (7) can be coated with insulation film (6). In case of electric connection by soldering an opening (9) can be performed on the top of the insulation film to allow better heat transmission during the soldering process. The insulated film (6) connect conductive metal strip (7) to adhesion material (3) which further connected to conductive silver printing (2). The center part of Cut-out B can be attached to conductive silver printing (2) without using adhesion material (3) or the adhesion material (3) only on the center part of Cut-out B. This figures presents how the elements described inFIGS.9and10are arranged around the U-shape cut-out according to the present invention. In case of use of an insulation film (6), this one is preferably placed in a manner to protect the edges of the conductive metal stripe (7) around the U-shape cut-out. In that way, the shear resistance of this insulation material can increase the mechanical resistance of the connector around this cut-out.

FIG.13illustrates the axonometric view of the new flat connector (5) according to the present invention explained and presented onFIG.4-12.

TheFIG.14presents another connector design allowing the symmetrical distribution of the stresses on the adhesion area when submitted to pull-off tensile force. This is obtained by a straight shape cut-out at the end of a standard flat connector in the connection area, then a folding of the connector all along its longitudinal axis and finally a bending of the two connection parts in opposite direction. As explained by this example, the flat connector and cut-outs can be of any shape where the aim is to achieve uniform or symmetrical distribution of the tensile stresses on the connection area when the connector is submitted to a tensile pull-of force, in order to eliminate the peeling effects resulting in low resistance to such efforts.

It is to be understood, however, that even though numerous characteristics and advantages of the present invention have been set forth in the foregoing description, together with details of the structure and function of the invention, the disclosure is illustrative only. Changes may be made in the details, especially in matters of shape, size, and arrangement of parts within the principles of the invention to the full extent indicated by the broad general meaning of the terms mentioned.