JP2006156067A - Electric connector - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an electric connector 30 with its bent terminal 18 free from being buried in a double-sided tape 22. <P>SOLUTION: A terminal 18 made of a sheet metal is projected from the bottom surface of a base 20, and one surface of the double-sided tape 22 having elasticity on a thickness direction is adhered on the bottom surface, and also, the terminal 18 is penetrated through the double-sided tape 22. Furthermore, the terminal 18 is adhered on the other side of the double-sided tape 22, and bent toward a plate thickness direction to make it almost parallel to the bottom surface. In a state that the bent terminal 18 is contacted to a plane connected terminal, the electric connector 30 makes the base 20 adhered to a connected terminal side member on the other surface of the double-sided tape 22. A projection 32 is formed on the bottom surface at a position facing the tip side of the bent terminal 18. The height of the projection 32 is set within a range of 30 to 40% of the thickness of the double-sided tape 22. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an electrical connector that is attached and fixed to a connected terminal side member in a state where the terminal is in contact with a planar connected terminal.

  The structure of an example of this type of conventional electrical connector will be described with reference to FIGS. FIG. 7 shows an example of a conventional electrical connector, in which (a) is a front view and (b) is a bottom view. FIG. 8 is a diagram showing a main part of a film antenna provided with a connected terminal. In a film antenna attached to a window glass or the like of a vehicle, terminals 12, 12, and 12 as planar connected terminals are provided by a conductive thin film on a film 10 serving as a connected terminal side member. . Therefore, as an electrical connector for electrical connection to the terminals 12, 12, 12, an electrical connector 14 having a structure as shown in FIG.

  The structure of the conventional electrical connector 14 shown in FIG. 7 will be described below. First, the connection cable 16 and terminals 18, 18, and 18 made of sheet metal that are appropriately electrically connected to the connection cable 16 are inserted, and the base 20 is integrally formed of insulating resin. Here, the terminals 18, 18, 18 are in a state of protruding from the bottom surface of the base 20. And the double-sided tape 22 which has elasticity in the thickness direction is stuck on the bottom surface of the base 20, and the terminals 18, 18, and 18 penetrate the double-sided tape 22 as shown by a broken line in FIG. And is in a protruding state. Further, the terminals 18, 18, 18 are bent in the plate thickness direction so as to be substantially parallel to the bottom surface of the base 20 so as to be attached to the other surface of the double-sided tape 22, thereby obtaining a structure as shown in FIG.

  By the way, the film antenna provided with the terminals 12, 12, and 12 as the connected terminals is attached to a slightly curved window glass of the vehicle. On the other hand, the bottom surface of the base 20 of the electrical connector 14 is flat and does not match the curvature of the window glass. Therefore, in order to absorb the gap between the bottom surface of the base 20 and the window glass and to achieve reliable adhesion, a double-sided tape 22 having elasticity in the thickness direction is used on the bottom surface of the base 20.

  In the electrical connector 14 having the above-described conventional structure, when the terminals 18, 18, and 18 are folded so as to be adhered to the other surface of the double-sided tape 22, if they are strongly folded, as shown in FIG. There is a possibility that the tape 22 is slightly buried in the thickness direction from the other surface of the tape 22. In addition, FIG. 9 is an enlarged view of a main part longitudinal section showing a defect of an electrical connector having a conventional structure. Thus, in the state where the terminals 18, 18, 18 are buried in the double-sided tape 22, even if the base 20 is stuck on the other side of the double-sided tape 22 on the film 10 of the film antenna stuck on the window glass 24. A gap d is generated between the terminals 12, 12, 12 of the film antenna as the connected terminal and the terminals 18, 18, 18 of the electrical connector 14, which causes a serious problem that electrical connection is not made. Therefore, the bending work of the terminals 18, 18 and 18 must be carefully performed and is not suitable for mass production. When the terminals 18, 18, and 18 are weakly bent and do not reach the other surface of the double-sided tape 22, the terminals 18, 18, and 18 interfere with the sticking, and the strong sticking and fixing is difficult. Can not.

  As a technique for eliminating the burying of the terminals 18, 18, 18 bent in the double-sided tape 22, if the rigidity for maintaining the plastically deformed shape of the terminals 18, 18, 18 is reduced, the double-sided tape 22 is used. The burial can be eliminated by the elasticity of. Therefore, a thin metal plate that can be easily deformed in the plate thickness direction may be used as the metal plate for forming the terminals 18, 18, 18. However, when insert molding is performed, integral molding becomes difficult because the shape changes due to the flow of the molding resin. Therefore, it is unavoidable to use the terminals 18, 18, 18 having a plate thickness having a predetermined rigidity capable of insert molding. Further, when the elasticity of the double-sided tape 22 is reduced so that the terminals 18, 18, 18 are not buried, for example, in a state where the thickness is reduced, the gap d between the window glass 24 and the bottom surface of the base 20 can be sufficiently absorbed. Also, a strong sticking cannot be achieved.

  The present invention has been made to improve the problems of the conventional structure as described above, and an object thereof is to provide an electrical connector in which a bent terminal is not buried in a double-sided tape.

  In order to achieve such an object, the electrical connector of the present invention projects a terminal made of sheet metal from the bottom surface of the base, and affixes one surface of a double-sided tape having elasticity in the thickness direction to the bottom surface, and the terminal is The double-sided tape is projected so as to penetrate, and the terminal is attached to the other surface of the double-sided tape, bent in the thickness direction so as to be substantially parallel to the bottom surface, and the bent terminal is connected in a planar shape. An electrical connector for attaching the base to the connected terminal side member on the other surface of the double-sided tape in contact with the terminal, the thickness of the double-sided tape on the bottom surface facing the bent terminal A protrusion lower than the above is provided.

  And you may comprise the said protrusion part in the position which faces the front end side of the said bent terminal, and setting the height to 30 to 40 percent of the thickness of the said double-sided tape.

  Moreover, it is also possible to configure the distal end side of the bent terminal from the position facing the protruding portion so as to be more easily deformed in the plate thickness direction than the base end side of the terminal.

  In the electrical connector according to claim 1, since the protrusion lower than the thickness of the double-sided tape is provided on the bottom surface of the base facing the bent terminal, the bending of the terminal is regulated by the protrusion, It is not buried in double-sided tape. Thus, electrical connection can be achieved by contacting the connected terminal. In addition, the gap is absorbed by the elasticity of the double-sided tape where the protrusions are not provided, and reliable sticking is achieved.

  In the electrical connector according to claim 2, the protrusion is provided so as to face the front end side of the bent terminal, and its height is set to 30 to 40% of the thickness of the double-sided tape. The tip side of the terminal is just the other side of the double-sided tape or a slightly protruding position. Therefore, it can be reliably brought into contact with the connected terminal. Here, the height of the protrusion is an experimentally obtained value.

  Moreover, in the electrical connector according to claim 3, since the distal end side is more easily deformed in the plate thickness direction than the base end side of the terminal than the position where it is bent and faces the protruding portion of the terminal, When affixed to the terminal side member, the tip end side of the terminal is easily deformed and positioned on the other surface of the double-sided tape, and a reliable electrical connection is obtained.

  Hereinafter, a first embodiment of the present invention will be described with reference to FIGS. 1A and 1B show a first embodiment of an electrical connector according to the present invention, in which FIG. 1A is a front view and FIG. 1B is a bottom view. 2A and 2B show a base used in the electrical connector of FIG. 1, wherein FIG. 2A is a front view and FIG. 2B is a bottom view. 1 and 2, the same or equivalent members as in FIG.

  1 and 2, the first embodiment of the electrical connector 30 according to the present invention is different from the electrical connector 14 having the conventional structure shown in FIG. , 18 are provided with protrusions 32, 32, 32 at positions facing the tip side. The protrusions 32, 32, 32 have a semicircular cross section with the longitudinal direction being substantially parallel to the fold line of the terminals 18, 18, 18. The height of the protrusions 32, 32, 32 was 30 to 40 percent of the thickness of the double-sided tape 22 from the experiment. This experiment was performed using 3M acrylic foam tape model # 4213 as a double-sided tape.

  In the electrical connector of the first embodiment having such a configuration, when the terminals 18, 18, 18 are bent, the terminals 18, 18, 18 are buried in the double-sided tape 22 by being restricted by the protrusions 32, 32, 32. There is nothing to do. Therefore, it is possible to reliably contact the connected terminal. Of course, the optimum value of the height dimension of the protrusions 32, 32, 32 may be experimentally determined and set according to the elasticity of the double-sided tape 22. That is, if the elasticity of the double-sided tape 22 is large, the height of the protrusions 32, 32, 32 may be set small, and if the elasticity is small, the height of the protrusions 32, 32, 32 may be set large. Further, the positions where the protrusions 32, 32, 32 are provided for the bent terminals 18, 18, 18 may be appropriately set experimentally.

  By the way, in the said 1st Example, although the cross-sectional shape of the protrusions 32, 32, 32 is semicircular, it is not restricted to this, As shown to Fig.3 (a), the protrusion 34 is a cross-sectional rectangle, Further, as shown in FIG. 3B, the protrusion 36 may have a triangular cross section. FIG. 3 shows a modification of the cross-sectional shape of the protrusion, (a) is a cross-sectional rectangle, and (b) is a cross-sectional triangle. Furthermore, in the first embodiment, the protrusions 32, 32, 32 have a shape in which the longitudinal direction is parallel to the fold line of the terminals 18, 18, 18, but this is not a limitation, and as shown in FIG. Each of the protrusions 38, 38... Provided on the bottom surface of the base 20 is a hemisphere and is provided on one or a plurality of lines substantially parallel to the bending line of the terminals 18, 18, 18. Also good. FIG. 4 shows a further modification of the protrusion, (a) is a front view, and (b) is a bottom view.

  Furthermore, a second embodiment of the present invention will be described with reference to FIG. FIG. 5 is a bottom view of the second embodiment of the electrical connector of the present invention. In FIG. 5, the same or equivalent members as in FIG.

  The electrical connector 40 of the second embodiment shown in FIG. 5 is different from the electrical connector 30 of the first embodiment shown in FIG. 1 in the shape of the tip side of the terminals 42, 42, 42. In the second embodiment, the terminals 42, 42, 42 are formed into a triangular shape or a trapezoidal shape with the tip side narrower than the position facing the protrusions 32, 32, 32, and the tip side is more easily deformed in the plate thickness direction. It is configured. In the electrical connector 40 of the second embodiment, the distal end side of the terminals 42, 42, 42 can be more reliably positioned on the other surface of the double-sided tape 22 as much as it is easily deformed. Therefore, it can be reliably brought into contact with the connected terminal. It should be noted that the shape is not limited to a triangular shape or a trapezoidal shape as long as the tip side is easily deformed in the thickness direction, and may be a shape in which two or more triangles or trapezoids are combined.

  A modification of the second embodiment is shown in FIG. FIG. 6 is a bottom view of a modification of the second embodiment of the electrical connector of the present invention. In FIG. 6, the same or equivalent members as those in FIGS. 1 and 5 are denoted by the same reference numerals and redundant description is omitted. 6 differs from the electrical connector 40 of the second embodiment shown in FIG. 5 in the shape of the distal end side of the terminals 52, 52, 52. The electrical connector 50 of the modification of the second embodiment shown in FIG. In this modification, the terminals 52, 52, 52 are provided with constricted portions 52 a, 52 a, 52 a that are narrower on the tip side than the positions where the terminals 52, 32, 32 are bent and faced. Therefore, the constricted portions 52a, 52a and 52a are easily bent in the thickness direction. In addition, the width is the same as that of the base end side at the distal end side from the constricted portions 52a, 52a, 52a, and can contact the connected terminal with a wide area on the distal end side.

  In the above embodiment, a narrow constricted portion (not shown) is formed at a position protruding from the base 20 of the terminals 18, 18, 18, 42, 42, 42, 52, 52, 52, so that the bending is easy. In addition, the bending position may be regulated. Moreover, in the said Example, terminal 12, 12, 12 provided in the film antenna affixed on the window glass of a vehicle is demonstrated as a to-be-connected terminal, and it demonstrates by the case used as an electrical connector electrically connected to this. However, the object of use is not limited to this, and any terminal arranged in a planar shape can be used. For example, it may be used as an electrical connector that is attached to a circuit board in order to make an electrical connection to a terminal arranged in a plane on the surface of the circuit board.

The 1st Example of the electrical connector of this invention is shown, (a) is a front view, (b) is a bottom view. The base used with the electrical connector of FIG. 1 is shown, (a) is a front view, (b) is a bottom view. The modification of the cross-sectional shape of a protrusion is shown, (a) is a cross-sectional rectangle, (b) is a figure which shows a cross-sectional triangle. The further modification of a protrusion is shown, (a) is a front view, (b) is a bottom view. It is a bottom view of 2nd Example of the electrical connector of this invention. It is a bottom view of the modification of 2nd Example of the electrical connector of this invention. The electrical connector of an example of the conventional structure is shown, (a) is a front view, (b) is a bottom view. It is a figure which shows the principal part of the film antenna in which a to-be-connected terminal is provided. It is a principal part longitudinal cross-sectional enlarged view which shows the malfunction of the electrical connector of a conventional structure.

Explanation of symbols

12, 18, 42, 52 Terminal 14, 30, 40, 50 Electrical connector 16 Connection cable 20 Base 22 Double-sided tape 32, 34, 36, 38 Projection

Claims (3)

A terminal made of sheet metal is protruded from the bottom surface of the base, and one surface of a double-sided tape having elasticity in the thickness direction is adhered to the bottom surface, and the terminal is formed so as to protrude through the double-sided tape, and the terminal is further provided. Affixed to the other surface of the double-sided tape, bent in the thickness direction so as to be substantially parallel to the bottom surface, and the other side of the double-sided tape with the bent terminal in contact with the planar connected terminal An electrical connector for adhering the base to a connected terminal side member, characterized in that a protrusion lower than the thickness of the double-sided tape is provided on the bottom surface facing the bent terminal. Electrical connector. The electrical connector according to claim 1, wherein the protrusion is provided at a position facing the front end side of the bent terminal and the height thereof is set to 30 to 40 percent of the thickness of the double-sided tape. Characteristic electrical connector. 2. The electrical connector according to claim 1, wherein the distal end side of the bent terminal is configured to be more easily deformed in the plate thickness direction than the base end side of the terminal. Electrical connector.