JP2008270021A - Plate type member with conductor and its manufacturing method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a plate type member with a conductor in which a plate type member does not undergo a hole making process on the plate type member and fitting components like a bolt and nut or the like are not used and furthermore, soldering is not applied, and a connecting terminal can be fixed with a bus bar or a power feeding point without a trouble. <P>SOLUTION: In a window glass 10 with a conductor 16, a connecting terminal 20 is fixed on a glass plate 12 by a resin portion 22 which is made of resin formed by injection molding. In a manufacturing method of the window glass 10 with the conductor 16, the connecting terminal 20 is abutted to a power feeding point 18, and in this condition, the connecting terminal 20 is pinched on the glass plate 12 with a die mold 26, and resin is injected into a cavity space for the resin portion 22 of the die mold 26, and the resin is solidified in the cavity space for the resin portion 22 to form the resin portion 22, and the resin portion 22 fixes the connecting terminal 20 on the glass plate 12. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a plate-like body with a conductor and a method for producing the same, and more particularly to a plate-like body with a conductor in which a conductor is disposed on the surface of a vehicle window glass and a method for producing the same.

  A window glass in which a conductor for a wire such as an antenna is disposed on the surface of a vehicle window glass (plate-like body) has no bulge and has an excellent design appearance as compared with a conventional rod antenna. Widely used for reasons such as no wind noise. In addition, as a conductor, in addition to an antenna for receiving radio waves of TV broadcast waves, receiving radio waves of AM / FM broadcast waves, and transmitting and receiving broadband radio waves such as PHS, a heat sensor for a security sensor and an anti-fogging heater It has been known.

  Such a conductor is generally connected at its end to a bus bar or feeding point printed on the surface of the window glass, and the bus bar or feeding point is attached to the vehicle body via a metal connection terminal. It is electrically connected to a circuit unit such as a receiver.

  As a method for fixing the connection terminal to the window glass, there is a method in which a through hole is formed in the window glass, a bolt is attached to a housing which is a connection terminal, and the bolt is inserted into the through hole and fixed by a nut. It is disclosed in Document 1. Patent Document 2 discloses a method of fixing a metal case, which is a connection terminal, to a conductive layer printed on a window glass by soldering, and Patent Document 3 is also made of ceramics, which is a connection terminal. A method of fixing the box portion by soldering to the feeding point is disclosed. Further, in the window glass disclosed in Patent Document 4, posts that are connection terminals are bonded to a rear glass of a vehicle with an adhesive. This post is inserted into an opening of a resin tab attached to the vehicle body side, whereby the rear glass is attached to the vehicle body side via the post.

By the way, in the window glass of a motor vehicle, there are some in which a frame body such as a gasket made of rubber or synthetic resin, a molding or the like is integrally attached to a peripheral portion thereof for the purpose of decoration or sealing. . A plate-like body to which such a resin frame is integrally attached is disclosed in Patent Documents 5 and 6, a window-like plate with a frame (trade name: MAW (registered trademark: Module Assy Window) manufactured by Asahi Glass Co., Ltd. ).
JP 2004-166202 A JP-A-6-291529 JP-A-10-93318 US Pat. No. 6,638,075 Japanese Patent Publication No. 6-51297 Japanese Patent No. 3581307

  However, the window glass with a conductor disclosed in Patent Document 1 has a drawback in that a through-hole must be formed in the window glass in order to fix the connection terminal, and the window glass processing steps increase. In addition, since fixing parts are increased due to the need for bolts and nuts, the connection terminals are fixed manually by the bolts and nuts, and thus there is a drawback in that it takes time for the fixing work. Recent window glass with conductors has a tendency to arrange a large number of conductors with different functions on a single window glass, and drilling holes for each of these conductors, fixing work of connecting terminals with bolts and nuts However, the productivity of the window glass with a conductor is significantly reduced. In addition, a large number of bolts and nuts do not save space, and there is a problem that the connection terminal layout is less flexible and the field of view is narrow.

  On the other hand, the window glass with a conductor of Patent Documents 2 and 3 that fix the connection terminal by soldering also fixes the connection terminal by manual work. . In addition, since solder contains harmful heavy metal lead, it is desired to fix the connection terminal without using solder.

  The present invention has been made in view of such circumstances, and without using holes in the plate-like body, without using fixed parts such as bolts and nuts, and further using solder. It is an object of the present invention to provide a conductor-like plate-like body that can fix a connection terminal to a bus bar or a feeding point without taking time and effort, and a method for manufacturing the same.

  In order to achieve the above object, the conductor-equipped plate-like body according to claim 1 has a conductor disposed on the surface of the plate-like body and is connected to the bus bar or the feeding point of the conductor. In the plate with a conductor fixed to the plate so that the terminal can be energized, the connection terminal is fixed to the plate with a resin portion formed by resin injection molding. To do.

  According to a third aspect of the present invention, there is provided a method of manufacturing a plate-like body with a conductor, wherein the conductor is disposed on the surface of the plate-like body, and the connection terminal can be energized to a bus bar or a feeding point of the conductor. In the method of manufacturing a plate with a conductor fixed to a body, the connection terminal is sandwiched between the plate body by a mold, and a resin portion is formed by injecting resin into the mold and solidifying the resin, The connection terminal is fixed to the plate-like body by a resin portion.

  According to the invention of the plate-like body with a conductor according to claim 1, the connection terminal is fixed to the plate-like body by the resin portion formed by resin injection molding. Further, according to the method for manufacturing a plate-like body with a conductor, the resin portion is formed by sandwiching the connection terminal between the plate-like body with a mold and injecting the resin into the mold to solidify. Then, the connection terminal is fixed to the plate-like body by the resin portion. As a result, according to the present invention, it is not necessary to drill holes in the plate-like body, without using fixing parts such as bolts and nuts, and without using solder and taking time. The connection terminal can be fixed to the bus bar or the feeding point. In addition, by fixing the connection terminals by injection molding, it becomes possible to arrange a plurality of connection terminals as close as possible, so that space can be saved and the layout of the connection terminals is also flexible. When the plate is made of window glass, the field of view is enlarged.

  According to a second aspect of the present invention, in the first aspect, the resin portion for fixing the connection terminal to the plate-like body is simultaneously with a resin frame attached to the peripheral portion of the plate-like body by injection molding. It is integrally formed by the injection molding.

  According to a fourth aspect of the present invention, in the third aspect, the resin portion for fixing the connection terminal to the plate-like body is simultaneously formed with a resin frame attached to the peripheral portion of the plate-like body by injection molding. An integral molding is performed by the injection molding.

  According to invention of Claim 2, 4, the resin part which fixes a connection terminal to a plate-shaped body is united by injection molding simultaneously with the resin-made frame attached to the peripheral part of a plate-shaped body by injection molding. It is preferable to mold. The resin part and the frame may be formed continuously as long as they are molded simultaneously, or the resin part may be formed away from the frame in an island shape. Thereby, a resin part and a frame can be manufactured in the same process.

  In the present invention, in a state where the bus bar or the feeding point and the connection terminal are in direct contact with each other, a mode in which the connection terminal is directly fixed to the plate-like body by the resin portion formed by resin injection, and the bus bar or the feeding point is connected. There exists an aspect which arrange | positions a terminal in a non-contact state and fixes a connection terminal to a plate-shaped object with a resin part. In the case of a conductor that transmits and receives an electric signal with an alternating current, that is, in the case of a conductor that can transmit and receive an electric signal with a capacitance type, the latter mode can be applied. In this case, the connection terminal is connected to the bus bar or the feeding point through the plate body so as to be energized, and the connection terminal is fixed to the plate body by a resin portion formed by resin injection. When laminated glass is applied as the plate-like body, the conductor may be disposed on each surface of the plurality of plate-like bodies forming the laminated glass, that is, at the interface between the plate-like body and the intermediate film. In this case, it is conceivable to fix the connection terminal to the bus bar or the feeding point disposed between the glasses via the glass, and in this case, the latter electrostatic capacity type is preferable.

  As the plate-like body, an inorganic glass plate or a resin plate can be exemplified. When used for windows, the plate-like body may be translucent or chromatic if it has sufficient transparency. As a glass plate, the laminated glass mentioned above other than a single plate glass plate can be illustrated. Furthermore, as a glass plate, the thing provided with functional coatings, such as a reinforcement | strengthening process and a heat ray reflective film, and the glass plate (what is called bilayer glass) which stuck the film on the glass surface are applicable.

  As the conductor material, a conductive silver paste (so-called silver pre) can be preferably used. Conductive silver paste is baked onto a glass plate after applying an ink in which conductive materials such as metal powder, glass frit, refractory filler, and resin such as ethyl cellulose are dispersed in a solvent, followed by a drying step and a firing step. Can be formed. Further, as other conductors, it is possible to use a conductive tape provided with a thin film such as silver or copper, an on-surface heating element, or a transparent conductive film such as ITO or ZnO in combination with a bus bar.

  The shape of the conductor includes: reception of television UHF broadcast waves, reception of VHF broadcast waves, reception of digital broadcast waves, reception of AM / FM broadcast waves, car phones, mobile phones, In addition to the reception of ETC radio waves related to ITS (Intelligent Transport Systems), personal radio, commercial radio, and antennas that transmit and receive broadband radio waves such as PHS, there are patterns such as heat sensors for security sensors and anti-fogging heaters. Examples thereof include conductors having no pattern, such as objects, on-surface heating elements, and transparent conductive films, but are not limited thereto.

  As a method for forming the pattern shape of the conductor, screen printing is suitable, but the pattern may also be formed by electronic printing using a conductive toner.

  The material of the resin part is selected in consideration of the good fluidity at the time of injection molding and the excellent appearance and weather resistance after molding, such as soft polyvinyl chloride, urethane, Examples include epoxy-based and acrylic elastomers. From the viewpoint of rust prevention of metal connection terminals, it is preferable to select a resin that is a thermoplastic elastomer (TPE) and does not contain chlorides such as olefin (TPO) and styrene (TPS). . The material of the frame is the same.

  On the other hand, when a resin containing chloride is selected, if the connection terminal is a highly electromagnetic rust-resistant metal such as aluminium or copper, the surface thereof is rust-proof plated such as galvanized, nickel-plated or chrome-plated. It is preferable to apply. In this case, it is preferable that the plating process is not performed on the portion that is electrically connected to the bus bar or the feeding point in order not to lower the conductivity.

  Moreover, it is preferable to apply an adhesive such as a primer to the surface of the plate-like body to which the resin portion and the frame body are fixed before injection molding in order to improve the adhesiveness of the resin portion and the frame body.

  Although the present invention is a technique for fixing a connection terminal to a plate-like body by a resin portion by injection molding, the technique of the present invention can also be applied when fixing a general electric contact and a connection terminal. For example, a connection terminal that connects an electric circuit provided on the plate-like body and an electric circuit outside the plate-like body is fixed to the plate-like body by a resin portion formed by resin injection molding. Note that the present invention is not limited to the plate-like body, and any member provided with an electric circuit may be used.

  According to the plate-like body with a conductor and the manufacturing method thereof according to the present invention, the connection terminal is fixed to the plate-like body by the resin portion formed by resin injection molding, so that the plate-like body is not subjected to hole processing. Further, the connection terminal can be fixed to the bus bar or the feeding point without using a fixing part such as a bolt or a nut, without using solder, and without taking time and effort.

  Hereinafter, preferred embodiments of a conductor-attached plate-like body and a method for manufacturing the same according to the present invention will be described in detail with reference to the accompanying drawings.

  FIG. 1 is a plan view showing a main part of a window glass (plate-like body) 10 with a conductor according to an embodiment. This window glass 10 can be made into a fixed window glass for automobiles with a molding by integrating a resin molding (frame: not shown) on the outer peripheral edge of a single glass plate 12 by injection molding.

  On the surface of the glass plate 12 of the window glass 10, strip conductors 16 and 16 are printed with silver paste, and the conductors 16 and 16 are formed in the black ceramic 36 so as not to obstruct the visual field of the glass plate 12. It is printed along the periphery. Further, at the end portions of the conductors 16 and 16, a feeding point (which may be a bus bar) 18 shown in FIGS. 2 and 3 is also printed on the glass plate 12. The connection terminal 20 is fixed to the window glass 10 by the resin portion 22 so that the power supply point 18 can be energized. The resin part 22 is formed by injection molding of resin to be described later. 2 is an essential part enlarged perspective view showing a fixing structure of the connection terminal 20 by the resin part 22, and FIG. 3 is a cross-sectional view taken along the line A-A 'of FIG. 1, 2, and 3 are shown excluding the frame body 14 (see FIG. 5) in order to emphasize the fixing structure of the connection terminal 20 by the resin portion 22.

  FIG. 4 is a perspective view showing the connection terminal 20. The connection terminal 20 is a metal plate-like body formed in a substantially rectangular shape, and a rectangular contact portion 20A that is in contact with the feeding point 18 is formed in a curved shape. Pressure is applied to the contact portion 20A by the resin injected when the resin portion 22 is molded, and the curved portion is elastically deformed flatly by this pressure and is pressed against the feeding point 18. In this state, the connection terminal 20 is fixed to the glass plate 12 by the solidified resin portion 22. Thereby, the contact property of 20 A of contact parts with respect to the feeding point 18 is improved.

  Further, on both sides of the contact portion 20A of the connection terminal 20, positioning portions 20B and 20C for positioning with respect to the mold 24 for molding the resin portion 22 are formed as shown in FIG. Further, as shown in FIG. 4, a pair of stopper pieces 21B, 21B, 21C, and 21C are formed on both edges of the positioning portions 20B and 20C. Yes. Further, a connector portion 20D connected to an external coupler (not shown) is formed at the end of the positioning portion 20C, and positioning pieces 21D and 21D for the coupler are formed at both edges of the connector portion 20D. Has been.

  The mold 24 shown in FIG. 5 includes an upper mold 26 and a lower mold 28 that sandwich the glass plate 12 from above and below. The upper mold 26 and the lower mold 28 are formed in a substantially ring shape along the outer peripheral edge of the glass plate 12. The upper mold 26 and the lower mold 28 are formed with groove portions 26A and 28A that form a cavity space for the molding 14, and the upper mold 26 is formed with a groove portion 26B that forms a cavity space for the resin portion 22. ing. Accordingly, the molding 14 is fixed to the peripheral portion of the glass plate 12 by injecting resin from a gate (not shown) into the cavity space for the molding 14 and solidifying the resin in the cavity space for the molding 14. Similarly, the resin portion 22 is fixed to the glass plate 12 by injecting resin from a gate (not shown) into the cavity space for the resin portion 22 and solidifying the resin in the cavity space for the resin portion 22. The connection terminal 20 is fixed to the glass plate 12 by the resin portion 22. In addition, it is preferable to make both cavity spaces communicate. Thereby, the molding 14 and the resin part 22 can be simultaneously manufactured by one injection (the same process).

  As described above, in the window glass 10 with the conductor 16 according to the embodiment, the connection terminal 20 is fixed to the glass plate 12 by the resin portion 22 formed by resin injection molding. Further, as shown in FIG. 5, the method of manufacturing the window glass 10 with the conductor 16 is such that the contact portion 20A of the connection terminal 20 is brought into contact with the feeding point 18, and the connection terminal 20 is moved to the glass plate by the mold 26 in this state. The resin portion 22 is formed by injecting resin into the cavity space for the resin portion 22 of the mold 26 and solidifying the resin in the cavity space for the resin portion 22. The connection terminal 20 is fixed to the glass plate 12 by 22.

  As a result, according to the window glass 10 with the conductor 16 of the embodiment, the solder is further used without drilling the glass plate 12, without using fixing parts such as bolts and nuts. Thus, the connection terminal 20 can be fixed to the feeding point 18 without any trouble and effort. Further, by fixing the connection terminal 20 by injection molding, it becomes possible to arrange the plurality of connection terminals 20, 20... As close as possible. The degree of freedom of the layout is expanded, and the field of view of the window glass 10 is expanded.

  Moreover, although the example in which the molding 14 is formed in a substantially ring shape along the outer peripheral edge of the glass plate 10 is shown here, the shape of the molding is not limited to this, and it matches the shape of the glass plate and the required performance of the vehicle. Thus, it may be formed only on a part of the outer peripheral edge of the glass plate. For example, in a substantially trapezoidal glass plate, it may be formed only on the upper side and the three sides of the glass plate, or may be formed by dividing only two sides on both sides.

  Moreover, although the example in which the molding is provided in contact with the three surfaces of the front and back surfaces (vertical surface in FIG. 5) and the small edge surface of the single glass plate 10 is shown here, the contact surface between the molding and the glass is You may make it contact only two arbitrary surfaces among the above-mentioned three surfaces. Furthermore, it is preferable to apply an adhesive such as a primer to the surface of the window glass 10 to which the resin part 22 and the molding are fixed before injection molding in order to improve the adhesiveness of the resin part 22 and the molding.

  In addition, in embodiment, although the window glass 10 with the molding | mall 14 was illustrated and the example which manufactures the molding | mall 14 and the resin part 22 by the same process was demonstrated, it is not limited to this. That is, in the case of the window glass 10 without the molding 14, only the resin portion 22 may be injection molded.

  Moreover, although embodiment demonstrated the aspect which fixes the connecting terminal 20 to the glass plate 12 with the resin part 22 in the state which made the feeding point 18 and the connecting terminal 20 contact directly, a feeding point (a bus bar may be sufficient). There is also an aspect in which 18 and the connection terminal 20 are arranged in a non-contact state, and the connection terminal 20 is fixed to the glass plate 12 by the resin portion 22.

  For example, in the case of a conductor that transmits and receives electrical signals with alternating current, that is, in the case of a conductor that can transmit and receive electrical signals with a capacitance type, the non-contact state can be applied. In this case, the connection terminal 20 is connected to the feeding point 18 through the glass plate 12 so as to be energized, and the connection terminal 20 is fixed to the glass plate by a resin portion 22 formed by resin injection. When the laminated glass 30 is applied as a glass plate as shown in FIG. 6, the conductor 16 is an interface between the two glass plates 32 and 32 of the laminated glass and the resin intermediate film on the inner surface of one glass plate 32. May be printed. In this case, it is conceivable that the connection terminal 20 is fixed to the feeding point 18 printed on the inner surface of the glass plate 32 by the resin portion 22 via the glass 18, and in this case, the capacitance type is preferable. It becomes. In FIG. 6, reference numeral 34 denotes an intermediate film (for example, an intermediate film made of pyrivinyl butyral), and reference numeral 36 denotes black ceramic printed on the peripheral edge of the glass plate 32.

  Moreover, in FIG. 6, although the laminated glass structure provided with the resin-made intermediate film between two glass plates was shown, the glass plate (what is called bilayer glass) which stuck the film on the surface of one glass plate, etc. Of course, the configuration is also possible.

  In these embodiments, the above-described various configurations can be applied to the plate-like body, the conductor material, the material of the resin portion, the connection terminal, and the like, and the same effects as described above can be achieved.

The top view which showed the principal part of the window glass for motor vehicles with an electric conductor which concerns on embodiment The principal part expansion perspective view which showed the fixation structure of the connection terminal with respect to a feeding point Longitudinal sectional view of the A-A 'sectional structure of the connecting terminal shown in FIG. Enlarged perspective view of connection terminals Sectional view showing the mold of the resin part that fixes the connection terminal to the glass plate Sectional view when the present invention is applied to laminated glass

Explanation of symbols

  DESCRIPTION OF SYMBOLS 10 ... Window glass for motor vehicles with conductor, 12 ... Glass plate, 14 ... Frame, 16 ... Conductor, 18 ... Feeding point (bus bar), 20 ... Connection terminal, 22 ... Resin part, 30 ... Laminated glass, 32 ... Glass plate, 34 ... intermediate film, 36 ... black ceramic

Claims (4)

In the plate-like body with the conductor, the conductor is disposed on the surface of the plate-like body, and the connection terminal is fixed to the plate-like body so that current can be supplied to the bus bar or the feeding point of the conductor.
The said connection terminal is being fixed to the said plate-shaped body by the resin part formed by resin injection molding, The plate-shaped body with an electrically conductive body characterized by the above-mentioned.   The said resin part which fixes the said connection terminal to the said plate-shaped body is integrally molded by the said injection molding simultaneously with the resin-made frame attached to the peripheral part of the said plate-shaped body by injection molding. A plate with a conductor. In the method for manufacturing a plate-like body with a conductor, in which a conductor is disposed on the surface of the plate-like body, and the connection terminal is fixed to the plate-like body so that current can be supplied to a bus bar or a feeding point of the conductor.
The connection terminal is sandwiched between the plate-like bodies by a mold, and a resin portion is formed by injecting a resin into the mold and solidifying, and the connection terminal is fixed to the plate-like body by the resin portion. The manufacturing method of the plate-shaped body with a conductor made into.   The conductive material according to claim 3, wherein the resin portion for fixing the connection terminal to the plate-like body is integrally formed by the injection molding simultaneously with a resin frame attached to a peripheral portion of the plate-like body by injection molding. A method for producing a plate with a body.

Images