JP2009252901A - Electric connection structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an electric connection structure between an electronic component and an electric wire, constituting an inexpensive electric circuit with less number of components. <P>SOLUTION: An electric connection structure 1 used for a light emitting device such as a rear combination lamp including a plurality of electronic components such as an LED lamp 2 having a wire-like lead wire 22, and a base member 4 where a recess 43 is provided on its surface at such position where the electronic component is fitted, is an electric wire 3. It also includes an electric wire 3 in which a conductor foil 31 is provided on one surface of a flexible insulating film 32, and a cut-raised part 34, wherein a part of the conductor foil 31 is cut and raised, is provided at such position as overlapped on the surface of the base member 4 while overlapping with the recess 43 as well, and a block body 5 which is superposed on the cut-raised part 34 while the lead wire 22 is wound on the outside surface and is press-fitted in the recess 43, to be secured to the base member 4, allowing the lead wire 22 to contact to the cut-rased part 34. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an electrical connection structure between an electronic component and a wire material for supplying power or transmitting signals to the electronic component.

  A light emitting device such as a rear combination lamp of an automobile includes, for example, various electronic components such as LED lamps, electric wire materials that are electrically connected to these various electronic components, and a base member that attaches the various electronic components and electric wire materials. Yes. Moreover, what is shown in FIG.8 and FIG.9 is known as an electrical connection structure of the said electronic component and the said electric wire material in such a light-emitting device (refer patent document 1). FIG. 8 is a cross-sectional view showing a conventional electrical connection structure between an electronic component and a wire material. FIG. 9 is a perspective view showing an electrical connection structure between another conventional electronic component and a wire member.

  An electrical connection structure 101 shown in FIG. 8 includes an LED lamp 102 as the electronic component having a light emitting portion 121 and a pair of lead wires 122, a press contact terminal 105 attached to each of the pair of lead wires 122, and the electric wire material. As a pair of covered electric wires 103 and a step-like base member 104 along the body shape. A mounting portion 143 having a groove for attaching the covered wire 103 and the press contact terminal 105 is provided on the surface of the base member 104. In such an electrical connection structure 101, the covered electric wire 103 and the press contact terminal 105 are attached to the mounting portion 143, so that the press contact terminal 105 breaks through the insulating coating 132 of the covered electric wire 103 and contacts the core wire 131. And the LED lamp 102 are electrically connected.

An electrical connection structure 201 shown in FIG. 9 includes an LED lamp 202 as the electronic component having a light emitting portion 221 and a pair of lead wires 222, a pair of bus bars 203 as the wire material, and a step shape along the body shape. The base member 204 is provided. The pair of bus bars 203 is made of a conductive metal plate, and is obtained by being pressed along the surface of the base member 204. The pair of bus bars 203 are stacked on the surface of the base member 204 with a space therebetween, and a bar 242 protruding from the surface of the base member 204 is passed through a through hole provided in the bus bar 203. Is attached to the base member 204 by welding. In such an electrical connection structure 201, each of the pair of lead wires 222 is attached to the pair of bus bars 203 by soldering or the like, and the bus bar 203 and the LED lamp 202 are electrically connected.
JP 2006-310088 A

  However, in the electrical connection structure 101 shown in FIG. 8, since the electronic parts other than the electronic component to which the press contact terminal 105 is attached cannot be directly electrically connected to the covered electric wire 103, other than the LED lamp 102 constituting the light emitting device. In order to electrically connect the electronic component to the covered electric wire 103, it is necessary to attach the electronic component to the printed board and to electrically connect the printed board and the covered electric wire 103. As described above, the electric circuit using the electric connection structure 101 has a problem that the number of parts increases.

  Further, in the electrical connection structure 201 shown in FIG. 9, a dedicated press die is necessary to form the bus bar 203 along the surface shape of the base member 204, and the bus bar 203 has various shapes. Since the base member 204 cannot be used in common, there is a problem that the cost becomes high.

  Accordingly, an object of the present invention is to provide an electrical connection structure between an electronic component and an electric wire material that can constitute an inexpensive electric circuit with a small number of components.

  In order to achieve the above object, the invention described in claim 1 is an electrical connection structure between an electronic component and a wire material, and (b) the electronic component having a wire-like lead wire, and (b) At a position where the electronic component is attached, a base member provided with a concave portion provided from the surface, and (c) a deformable conductor foil, which is superimposed on the surface of the base member and overlaps the concave portion. The wire material provided with a cut-and-raised portion formed by cutting and raising a part of the conductor foil, and (d) in the recessed portion overlapped with the cut-and-raised portion in a state where the lead wire is wound around the outer surface. And a block body fixed to the base member by being press-fitted into the base member and contacting the lead wire with the cut-and-raised portion.

  The invention described in claim 2 is characterized in that, in the invention described in claim 1, a groove along which the lead wire is provided is provided on the outer surface of the block body. .

  The invention described in claim 3 is the invention described in claim 1 or 2, wherein a rib is provided on at least one of the inner surface of the recess and the outer surface of the block body. It is characterized by.

  According to the first aspect of the present invention, (a) the electronic component having a wire-like lead wire, and (b) a base member provided with a concave recess from the surface at a position where the electronic component is attached. And (c) the deformable conductor foil is provided, and the cut-and-raised portion formed by cutting and raising a part of the conductor foil is provided at a position overlapping the surface of the base member and overlapping the recess. And (d) the lead wire wound around the outer surface and superimposed on the cut-and-raised portion and press-fitted into the recess to be fixed to the base member, and the lead wire is cut and raised. Therefore, it is possible to provide an electrical connection structure that can form an inexpensive electrical circuit with a small number of parts.

  According to the invention described in claim 2, since the groove along which the lead wire is provided is provided on the outer surface of the block body, the lead wire is displaced with respect to the block body, It is possible to prevent the lead wire from coming off the block body.

  According to the invention described in claim 3, since the rib is provided on at least one of the inner surface of the recess and the outer surface of the block body, the block body is press-fitted into the recess. By crushing the rib, the block body can be prevented from coming out of the recess, and the conductor foil and the lead wire constituting the cut and raised portion can be reliably electrically connected.

  Hereinafter, an electrical connection structure between an electronic component and a wire material according to an embodiment of the present invention will be described with reference to FIGS. FIG. 1 is a perspective view showing an electrical connection structure between an electronic component and a wire material according to an embodiment of the present invention. FIG. 2 is a plan view of the wire material shown in FIG. 1. FIG. 3 is a perspective view of the block body shown in FIG. FIG. 4 is a perspective view showing a state in which a lead wire of an electronic component is wound around the block body shown in FIG. FIG. 5 is a cross-sectional view taken along line AA in FIG. FIG. 6 is a cross-sectional view taken along line BB in FIG. FIG. 7 is a cross-sectional view taken along the line CC in FIG.

  The electrical connection structure 1 is an electrical connection structure 1 used in a light emitting device such as a rear combination lamp of an automobile. As shown in FIG. 1, a plurality of electronic components such as various diodes and LED lamps 2 and the automobile A base member 4 attached to the vehicle body panel, the electric wire member 3 electrically connected to the plurality of electronic components and stacked on the surface of the base member 4, and the base member 4 while electrically connecting the plurality of electronic components to the electric wire member 3 And a plurality of block bodies 5 to be attached to.

  As shown in FIG. 1, the LED lamp 2 includes a light emitting portion 21 that emits light when energized and a pair of wire-like lead wires 22 protruding from the light emitting portion 21. It is.

  As shown in FIG. 1, the base member 4 is made of an insulating synthetic resin, and is provided at a position where a main body 41 provided in an elongated plate shape and the electronic component of the main body 41 are attached. A plurality of recesses 43 and a plurality of positioning pins 42 provided on the main body 41 are provided.

  The recess 43 is a rectangular parallelepiped space provided in a recess from the surface of the main body 41 as shown in FIGS. Ribs 44 extending linearly from the bottom surface of the concave portion 43 toward the surface of the main body portion 41 are provided on two inner surfaces facing each other among the inner surfaces of the concave portion 43. A pair of such recesses 43 are provided at intervals along the short direction of the main body 41, and a plurality of pairs of these recesses 43 are provided at intervals along the longitudinal direction of the main body 41. Yes.

  The positioning pins 42 are provided upright in a columnar shape from the surface of the main body 41. One such positioning pin 42 is provided for the pair of recesses 43, and is provided in the vicinity of the pair of recesses 43 and in the center of the main body 41 in the short direction.

  As shown in FIG. 1 and FIG. 2, the wire material 3 includes a strip-like film 32 made of an insulating synthetic resin such as polyimide, and a conductive metal material such as copper on one surface of the film 32. And a conductive foil 31 provided in a thin foil shape. The conductor foil 31 forms a conductive path for electrically connecting the electronic components, extends linearly along the longitudinal direction of the film 32, and is parallel to the film 32 at a distance from each other. It has two linear portions 30 extending. Further, the electric wire material 3 is excellent in flexibility, and is provided so as to be deformable according to the surface shape of the base member 4. Such a wire member 3 is stacked on the main body 41 in such a direction that the other surface of the film 32 abuts on the surface of the main body 41.

  Further, the above-described electric wire material 3 can be obtained by applying a known plating process to one surface of the film 32, or by applying a conductive paste to one surface of the film 32. . In addition, it can be obtained by attaching a conductive tape to one surface of the film 32.

  Further, the electric wire material 3 is provided with a plurality of positioning holes 33 and a plurality of cut and raised portions 34.

  The positioning hole 33 is a hole provided at a position where the conductor foil 31 of the film 32 is not provided and overlaps the positioning pin 42. A positioning pin 42 is passed through the positioning hole 33. As a result, the wire member 3 is positioned with respect to the base member 4.

  The cut-and-raised portion 34 is provided at a position where the conductor foil 31 of the electric wire material 3 is provided and overlaps the concave portion 43. The cut-and-raised part 34 is provided with a U-shaped cut in the film 32 and the conductor foil 31 located at the above-mentioned position, and an inner part of the cut is bent to the other surface side of the film 32. . Further, the cut-and-raised part 34 is positioned in the recess 43 as shown in FIG. 5 in a state where the wire member 3 is overlapped on the surface of the main body part 41.

  The block body 5 is made of a synthetic resin and is provided in a cubic shape as shown in FIG. The block body 5 is provided with a groove 51 on the outer surface thereof along which the lead wire 22 of an electronic component such as the LED lamp 2 runs. The groove 51 is provided on two surfaces of the outer surface facing each other. As shown in FIG. 4, such a block body 5 is formed in such a manner that the lead wire 22 is wound around the groove 51 on the outer surface, and is superimposed on the cut and raised portion 34 and press-fitted into the recess 43. 4 is fixed. As a result, the conductor foil 31 of the cut and raised portion 34 and the lead wire 22 are brought into contact with each other and are electrically connected. That is, the block body 5 is press-fitted into the recess 43 to attach an electronic component such as the LED lamp 2 to the base member 4 and to bring the conductor foil 31 of the cut-and-raised portion 34 and the lead wire 22 into contact with each other. 3 and the electronic component are electrically connected.

  As described above, in the present invention, since the groove 51 along which the lead wire 22 is provided is provided on the outer surface of the block body 5, the lead wire 22 is displaced with respect to the block body 5, or the lead wire It can prevent that 22 remove | deviates from the block body 5. FIG.

  The electronic component of the electrical connection structure 1 constituting the light emitting device includes a lead wire 22 that can be wound around the outer surface of the block body 5 like the LED lamp 2, and the outer surface of the block body 5. Some of them have lead wires that cannot be wound around. And the electronic component which has the lead wire 22 is electrically connected with the electric wire material 3 while it is attached to the base member 4 similarly to the LED lamp 2 using the block body 5. Further, the electronic component having the lead wire that cannot be wound around the outer surface of the block body 5 described above is attached to the wire member 3 by bonding and is electrically connected to the conductor foil 31.

  The electrical connection structure 1 having the above-described configuration is assembled as follows. First, the positioning pin 42 of the base member 4 is passed through the positioning hole 33 of the wire member 3, and the wire member 3 is overlapped on the surface of the main body 41. Further, a lead wire 22 of an electronic component such as the LED lamp 2 is wound around the groove 51 of the block body 5.

  Then, the block body 5 in which the lead wire 22 is wound around the groove 51 on the outer surface is superimposed on the cut and raised portion 34 and press-fitted into the recess 43 as shown in FIG. That is, the block body 5 is press-fitted into the concave portion 43 together with the cut and raised portion 34. At this time, the block body 5 is press-fitted into the recess 43 while the ribs 44 provided on the inner surface of the recess 43 are crushed.

  As described above, in the present invention, since the rib 44 is provided on the inner surface of the recess 43, the rib 44 is crushed when the block body 5 is press-fitted into the recess 43. It is possible to prevent the recess 43 from coming out, and the conductor foil 31 of the cut and raised portion 34 and the lead wire 22 can be reliably electrically connected. That is, the connection reliability between the conductor foil 31 of the cut and raised portion 34 and the lead wire 22 can be increased.

  Thus, as shown in FIG. 6, an electronic component such as the LED lamp 2 is attached to the base member 4, and the lead wire 22 of the electronic component is brought into contact with the conductor foil 31 of the cut and raised portion 34, so that these LED lamp 2 Such an electronic component and the wire member 3 are electrically connected. In addition, the electronic component having a lead wire that cannot be wound around the outer surface of the block body 5 is attached to the wire member 3 by bonding and is electrically connected to the conductor foil 31.

  As described above, in the present invention, the block body 5 is used between a plurality of electronic components such as the LED lamp 2 constituting the electric circuit of the light emitting device, that is, the electric circuit for lighting as an LED lighting circuit, or bonding is performed. Since it can be electrically connected by one electric wire material 3, it is possible to configure an inexpensive electric circuit with a small number of parts. Further, the light emitting device can be reduced in weight.

  Moreover, in this invention, the attachment to the base member 4 of an electronic component and the electrical connection to the electric wire material 3 of an electronic component can be performed simultaneously by the simple operation | work of press-fitting the block body 5 in the recessed part 43. FIG.

  Moreover, in this invention, since the electric wire material 3 is attached to the base member 4 by press-fitting the block body 5 in the recessed part 43 with the raising part 34, the fixing component for attaching the electric wire material 3 to the base member 4 is provided. unnecessary.

  Moreover, in this invention, since the electric wire material 3 has flexibility and is provided so that deformation | transformation is possible according to the surface shape of the base member 4, this electric wire material 3 is compared with the various base members 4 from which a shape differs. Can be used in common.

  In the above-described embodiment, the rib 44 is provided on the inner surface of the recess 43. However, in the present invention, a rib may be provided on the outer surface of the block body 5, and the inner surface of the recess 43 and the block Ribs may be provided on both the outer surface of the body 5.

  In addition, embodiment mentioned above only showed the typical form of this invention, and this invention is not limited to embodiment. That is, various modifications can be made without departing from the scope of the present invention.

It is a perspective view which shows the electrical connection structure of the electronic component and electric wire material which concern on one embodiment of this invention. It is a top view of the electric wire material shown by FIG. It is a perspective view of the block body shown by FIG. FIG. 4 is a perspective view illustrating a state in which a lead wire of an electronic component is wound around the block body illustrated in FIG. 3. It is sectional drawing along the AA line in FIG. It is sectional drawing along the BB line in FIG. It is sectional drawing along CC line in FIG. It is sectional drawing which shows the electrical connection structure of the conventional electronic component and electric wire material. It is a perspective view which shows the electrical connection structure of other conventional electronic components and electric wire materials.

Explanation of symbols

1 Electrical connection structure 2 LED lamp (electronic parts)
3 Wire material 4 Base member 5 Block body 22 Lead wire 31 Conductor foil 34 Cut and raised portion 43 Recess 44 Rib 51 Groove

Claims (3)

An electrical connection structure between an electronic component and a wire material,
(A) the electronic component having a wire-like lead wire;
(B) a base member provided with a concave portion from the surface at a position where the electronic component is attached;
(C) The electric wire material having a deformable conductor foil, and provided with a cut-and-raised portion formed by cutting and raising a part of the conductor foil at a position overlapping the surface of the base member and overlapping the recess. When,
(D) The lead wire is wound around the outer surface, is overlaid on the cut-and-raised portion, and is press-fitted into the recess to be fixed to the base member, and the lead wire is brought into contact with the cut-and-raised portion. Block body,
An electrical connection structure characterized by comprising:   The electrical connection structure according to claim 1, wherein a groove along which the lead wire is provided is provided on the outer surface of the block body.   The electrical connection structure according to claim 1 or 2, wherein a rib is provided on at least one of the inner surface of the recess and the outer surface of the block body.

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