JP2007026890A - Mounting structure of housing for connedtor connecting flexible printed board and electric wire - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a mounting structure of a housing for a connector which does not require a dedicated member, realizes cost reduction with a simple structure, and facilitates assembly work. <P>SOLUTION: This is a mounting structure of a housing for a connector connecting a first connector 5 connected to the electric wire 3 to a second connector 7 mounted on an FPC 2, and connecting the FPC 2, on which the first and second connectors 5, 7 are fixed, to the housing 1. A reinforcement plate 8 is provided at a rear face or a side face of the second connector 7 interposing the FPC 2, a plurality of bosses are provided at the housing 1 and after inserting the head portion 4A of the boss into a hole 9 formed in the reinforcement plate 8 and the FPC 2, a fastener 10 for coming-off prevention is mounted on the head portion 4A, and the fastener 10 is positioned on a small hole 11A of a mounting error absorption means with the small hole 11A which extends from the FPC 2 and is folded back and in which at least one head portion 4A of the boss is inserted, and depresses the reinforcement plate 8. The first and the second connectors 5, 7 are positioned at the rear face of the reinforcement plate 8 surrounded by the bosses 4 and a projection 6. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a housing mounting structure for a connector for connecting an FPC and an electric wire to electrically and mechanically connect a flexible printed circuit board (FPC) and the electric wire.

As a conventional housing mounting structure of the connector for connection, the FPC is sandwiched and fixed between the cover and the main body with the FPC conductive portion being pierced with the claw portion of the connector bus bar, and the main body is attached to the housing. Therefore, the FPC can be connected to the connector at an arbitrary position in the longitudinal direction, the degree of freedom of wiring is improved, and the FPC and the electric wire can be connected at an optimum place according to the wiring design of the electric wire. It is known (see Patent Document 1). Moreover, what accommodated in the state which connected the connector of the several wire harness in the box inside the pillar inner panel side of a motor vehicle is also known. This discloses a means for attaching a connector connected to a box, but a rotating body is provided on the box via a hinge, a connector fixing portion is provided on a cover constituting the rotating body, and the connector Is engaged with a connector fixing portion, that is, a fixing rail (see Patent Document 2).
JP 2001-118621 A (page 3, FIG. 1) Japanese Patent Laid-Open No. 10-1999628 (page 3, FIG. 3)

  The conventional structure for connecting two connectors requires a dedicated member, the structure is complicated, the number of parts is large, and the cost is increased. In addition, the conventional structure for attaching the connected connector to the box requires a slide engaging portion to be formed on the connector, a fixing rail adapted to the slide engaging portion, a special member, and a cost. It was disadvantageous in trying to go down.

  Accordingly, it is an object of the present invention to provide a housing mounting structure for a connector for connecting an FPC and an electric wire, which does not require a special dedicated member, has a simple structure, reduces costs, and facilitates assembly work.

  To achieve the above object, the present invention provides an FPC in which a first connector connected to an electric wire is connected to a second connector mounted on a flexible printed circuit board (FPC), and the first and second connectors are fixed to the housing. In the housing mounting structure of the connector for connecting the wire and the electric wire, a reinforcing plate is provided on the back surface or the side surface sandwiching the FPC of the second connector, a plurality of bosses are erected on the housing, and the reinforcing plate and the FPC are opened. A mounting error absorbing means having a small hole for inserting a stopper for preventing the boss from being inserted into the hole after the head of the boss is inserted into the hole and extending from the FPC and into which the head of at least one boss is inserted. The stopper is positioned on the small hole to press the reinforcing plate, and the first and second connectors are positioned on the back surface of the reinforcing plate surrounded by the boss and the protrusion.

  According to the present invention, the first connector connected to the electric wire is connected to the second connector attached to the flexible printed circuit board (FPC), and the FPC having the first and second connectors fixed to the housing is connected to the electric wire. In the connector housing mounting structure, a reinforcing plate is provided on a back surface or a side surface of the second connector sandwiching the FPC, a plurality of bosses are erected on the housing, and the bosses are formed in holes formed in the reinforcing plate and the FPC. After the head is inserted, a stopper for preventing it from being attached is attached to the head, and the attachment error absorbing means has a small hole that extends from the FPC and is folded back and into which the head of at least one boss is inserted. Since the stopper is positioned and the reinforcing plate is pressed, and the first and second connectors are positioned on the back surface of the reinforcing plate surrounded by the boss and the protrusion, no special member is required and the number of parts is also increased. Without with the FPC can be fixed to the housing in a very simple operation, it can be prevented even rattling of the reinforcing plate fixed to the housing.

  Several embodiments of the present invention will be described below with reference to the drawings.

  In the embodiment shown in FIG. 1, a flexible printed circuit board (FPC) is applied to a module such as an instrument panel, a center console, or a door of a vehicle on which electrical components are mounted. The FPC 2 is fixed to the module housing 1 and the electric wire 3 as an electrical component is electrically and mechanically connected to the FPC 2. The housing 1 refers to a resin casing that forms the main body of the module such as an instrument panel, a center console, a door, and the like. A plurality of, in this example, three bosses 4 are erected on the housing 1, and a protrusion 6 for preventing the first connector 5 to which the electric wire 3 is connected is also erected. Further, a reinforcing plate 8 is provided on the back side through the FPC 2 of the second connector 7 attached to the FPC 2 (not shown in FIG. 1), and the head 4A of the boss 4 is inserted into the hole 9 formed in the reinforcing plate 8. is there. A reinforcing plate 8 is fixed to the housing 1 by attaching a stopper 10 to prevent the head 4A from coming off, and the FPC 2 and the second connector 7 are also fixed. Further, two tongue pieces 11 are formed which are folded back from the vicinity of the place where the second connector 7 of the FPC 2 is mounted and reach the head 4A of the boss 4 on the reinforcing plate 8. A small hole 11A (see FIG. 2) into which the head 4A is inserted may be formed on the distal end side of the tongue piece 11, and the stopper 10 may be attached in advance to the small hole 11A. Here, although the tongue piece portion 11 is formed of the same material as the FPC 2, it may extend from the FPC 2 with another material and be folded back so as to be locked to the head 4 </ b> A of the boss 4 on the reinforcing plate 8. . Here, the tongue piece portion 11 constitutes a dimensional error absorbing means of the reinforcing plate 8. Without such a dimensional error absorbing means (tongue piece 11), the reinforcing plate 8 cannot be pulled out upward by the stopper 10, but rattling occurs to the left and right. Since the tongue piece portion 11 is interposed between the reinforcing plate 8 and the neck portion of the head 4A, the reinforcing plate 8 can be pressed from above to prevent rattling from side to side.

  FIG. 2 is a plan view in which two tongue pieces 11 are used because the size of the hole 9 in the reinforcing plate 8 is formed larger than the diameter of the head 4A of the boss 4 and the boss 4 is Even if a dimensional error occurs between the installation position and the formation position of the hole 9, the head 4A can be inserted into all the holes 9. However, the reinforcing plate 8 is used in the lateral direction by using these tongue pieces 11. This is to make the boss 4 firmly fixed without rattling. The reinforcing plate 8 is made of a glass epoxy base material, a polyimide plate, or the like, and is affixed to the FPC 2, and the surface mount type second connector 7 is soldered on the FPC 2 to which the reinforcing plate 8 is affixed. By using such a second connector 7, there is no need to connect to the FPC 2 using a dedicated member having a complicated structure as in the prior art, the number of parts is reduced, and the structure is simplified.

  FIG. 3 is a cross-sectional view taken along the line AA in FIG. 2 to clarify the positional relationship of the second connector 7 and the relationship between the three bosses 4 and the reinforcing plate 8. 4 shows a cross section taken along line B-B in FIG. 2, in which the first and second connectors 5 and 7 are connected, and the first connector 5 is prevented from being pulled out by the protrusion 6. The connected first and second connectors 5 and 7 are spaces surrounded by the bosses 4 and the protrusions 6 and are located on the back surface of the reinforcing plate 8.

  FIG. 5 shows details of the boss 4 and also shows a hole 9 into which the boss 4 is inserted. As described above, the hole 9 is formed larger than the head 4A in order to absorb a dimensional error, and all the bosses 4 can be inserted into at least three holes 9.

  FIG. 6 shows the stopper 10, and an internal tooth washer having an internal tooth 10 </ b> A can be preferably used. A washer other than the internal tooth washer, a C-ring, or the like can also be used as the stopper 10. The internal tooth washer is a resin product or a metal product, and the internal tooth 10A has flexibility. Workability is also improved by sticking the internal tooth washer to the hole 9 of the reinforcing plate 8 in advance. As described above, an internal tooth washer may be attached in advance to the small hole 11 </ b> A of the tongue piece 11.

  In the above-described embodiment, the example in which the second connector 7 is fixed to the housing 1 in the horizontally placed state has been described. However, depending on the mode of the module, there is a case in which the second connector 7 is unavoidably placed. 7 will be described below.

  7 and 8 show an example in which the FPC 2 and the second connector 7 are attached to the module housing, that is, the housing 1 in a vertically placed state. In this example, two bosses 4 are erected on the housing 1, and a U-shaped erected wall 12 (see FIG. 10) and one erected wall 13 are erected. The first and second connectors 5 and 7 are sandwiched between the upright walls 12 and 13 (see FIG. 10). In this example, the FPC 2 is bent, and the reinforcing plate 8 is provided in the bent portion. The reinforcing plate 8 is also formed with a hole 9 similar to that of the previous embodiment. The boss 4 is inserted into the hole 9 and a stopper 10 is attached to the lower side of the head 4A. Moreover, it has the same tongue piece part 11 as mentioned above.

  9 and 10 show a cross section taken along the line AA in FIG. 8 and a cross section taken along the line BB in FIG. 9. A projection 6 is formed on the standing wall 12, and this projection 6 prevents the first connector 5 from being pulled out. ing.

The perspective view which shows embodiment of this invention. Plan view. FIG. 3 is a cross-sectional view taken along line AA in FIG. 2. BB sectional drawing of FIG. Enlarged view of the boss. Stopper top view. The perspective view which shows another embodiment. Plan view. FIG. 9 is a sectional view taken along line AA in FIG. 8. BB sectional drawing of FIG.

Explanation of symbols

1 Housing 2 FPC (Flexible Printed Circuit Board)
3 Electric wire 4 Boss 4A Head 5 First connector 6 Protrusion 7 Second connector 8 Reinforcement plate 9 Hole 10 Stopper

Claims (5)

In the housing mounting structure of the connector for connecting the FPC and the electric wire, wherein the first connector connected to the electric wire is connected to the second connector attached to the flexible printed circuit board (FPC), and the first and second connectors are fixed to the housing. ,
A reinforcing plate is provided on the back surface or side surface of the second connector across the FPC,
A plurality of bosses are erected on the housing,
After inserting the head of the boss into the hole drilled in the reinforcing plate and FPC, attach a stopper for preventing the head from coming off,
The stopper is positioned on the small hole of the mounting error absorbing means having a small hole extending from the FPC and folded and inserted into the head of at least one boss, and presses the reinforcing plate.
A housing mounting structure for a connector for connecting a flexible printed circuit board and an electric wire, wherein the first and second connectors are positioned on the back surface of a reinforcing plate surrounded by the bosses and protrusions.   2. The housing mounting structure for a connector for connecting a flexible printed board and an electric wire according to claim 1, wherein the stopper is an internal tooth washer.   The housing mounting structure for a connector for connecting a flexible printed board and an electric wire according to claim 2, wherein the internal tooth washer is pasted in advance on a hole in the reinforcing plate.   The tongue portion of the FPC that is folded back from the vicinity of the second connector mounting portion and reaches the head of the boss on the reinforcing plate forms a mounting error absorbing means for the reinforcing plate, and the boss head of the tongue piece is inserted. 4. The housing mounting structure for a connector for connecting a flexible printed circuit board and an electric wire according to claim 2, wherein the internal tooth washer is attached to the upper surface of the small hole.   The flexible printed circuit board and the electric wire according to any one of claims 1 to 4, wherein both ends of the first connector are vacant terminals, and protrusions formed on the housing are applied to this portion. The housing mounting structure of the connector for connection.

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