JP2007028800A - Housing mounting structure of connector for connecting flexible printed circuit board with electric wire - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To completely fix a connecting connector on a housing with a simple structure. <P>SOLUTION: In this housing mounting structure of a connector for connecting FPC1 with an electric wire 2 which connects a first connector 5 connected to an electric wire 2 to a second connector 6 fitted onto FPC1 and fixes the the first and the second connectors 5, 6 on the housing 3, a storage portion 4 for storing the connecting connector is formed at the housing 3, a penetration hole 7 for the first connector 5 of the connecting connector and the electric wire 2 is formed at the storage portion 4, and a removal preventing device of the first connector 5 is provided at the storage portion 4 for connecting the first and the second connectors 5, 6 for storage. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

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

  When FPC is applied to modules such as instrument panels, center consoles, and doors on which electrical components are mounted, and the FPC is connected to the electrical components in this module, the electrical components are originally connectors for wire harnesses (for electric wires). Therefore, it is necessary to wake up a new connector exclusively for FPC that matches the structure, which increases the cost. Therefore, it is necessary to connect the FPC and the electric wire by relay connection and electrically connect them to the electrical components. As a method of this relay connection, the cover and the main body portion with the claw portion of the bus bar of the connector pierced into the conductive portion of the FPC Since the FPC is sandwiched and fixed between the FPC and the FPC, the FPC can be connected to the connector at any position in the longitudinal direction. One that can connect an FPC and an electric wire is known (see Patent Document 1). In this conventional example, a dedicated member is required, the structure is complicated, the number of parts is large, and the cost is increased.

A general-purpose connector 100 is used for the relay connection between the FPC 1 and the electric wire 2 and there is a demand to keep the cost low. In order to realize this, a configuration as shown in FIG. 16 can be considered. In this case, it is necessary to securely fix the portion of the general-purpose connector 100 for relay connection and further prevent it from coming off. This prevention of disconnection is due to the fact that if the general-purpose connector 100 is held down at a low cost, the locking mechanism is weak and there is a type that can be pulled out immediately when the electric wire 2 is pulled. In FIG. 16, reference numeral 101 denotes an electrical component, and reference numeral 102 denotes a connection connector to the electrical component 101. Therefore, a dedicated clip has been developed as a method for fixing the FPC 1 (see Patent Document 2). In addition, in order to prevent disconnection, an electric wire 2 is bundled with a band clip, and this band clip is fixed to a module housing (housing).
JP 2001-118621 A (page 3, FIG. 1) JP 2002-204082 A (page 3, FIG. 1)

  Even if a band clip is used for the electric wire part, a dedicated clip is used for the FPC part, and each is fixed to the housing, the method of fixing the general-purpose connector is insufficient in terms of functionality and when vibration is applied. In such a case, contact failure of the connector portion is caused and reliability is low, and further, the inconvenience that the connector on the electric wire side connected to the general-purpose connector is easily disconnected when a tensile force is applied has not been solved.

  SUMMARY OF THE INVENTION An object of the present invention is to provide a housing mounting structure for a connector for connecting an FPC and an electric wire that can securely fix the connector to the housing with a simple structure.

  In order to achieve the above-mentioned object, the present invention connects a first connector connected to an electric wire to a second connector attached to the FPC, and connects the FPC and the electric wire to fix the first and second connectors to the housing. In the housing mounting structure for a connector, a housing portion for housing the connector for connection is formed in the housing, a first connector for the connector for connection and a hole for penetrating the electric wire are formed in the housing portion, and the first and second The housing portion for connecting and housing the connector is provided with means for preventing the first connector from coming off. Here, the housing refers to, for example, a resin casing that forms the main body of a module such as an instrument panel, a center console, or a door, and the cover refers to, for example, a decorative panel that forms a design surface.

  According to the present invention, the first connector connected to the electric wire is connected to the second connector attached to the FPC, and the first and second connectors are fixed to the housing. In the housing, a housing portion for housing the connector for connection is formed, a first connector of the connector for connection and a through hole for the electric wire are formed in the housing portion, and the first and second connectors are connected and housed. Since the first connector is provided with a means for preventing the first connector from coming off, the connector for connection can be securely fixed to the housing with a simple structure. Further, it is possible to easily and inexpensively form a housing portion for fixing the connector for connection to the housing without requiring a special member. Furthermore, the overall weight can be reduced. Further, the formation of the disconnection preventing means ensures the connection of the connecting connectors to each other even when the electric wire is pulled, and the fixing to the housing is sufficient.

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

  1 to 3, the first connector 5 connected to the electric wire 2 is connected to the second connector 6 attached to the FPC 1 in the accommodating portion 4 formed in the housing 3. The first and second connectors 5 and 6 constitute a connector for connection and are accommodated in the accommodating portion 4. In this embodiment, the accommodating portion 4 is constituted by a recessed portion, and the bottom plate 4A of the recessed portion is connected to the bottom plate 4A. 1 A through-hole 7 is formed through which the connector 5 and the electric wire 2 penetrate. Further, a reinforcing plate 8 is provided on the back side through the FPC 1 of the second connector 6, and the reinforcing plate 8 is positioned in the opening 9 of the accommodating portion 4 on the side opposite to the through hole 7. The opening 9 is covered with a cover 10 attached to the housing 3.

  A pair of first projections 11 for preventing the first connector 5 from coming off is formed on the bottom plate 4A of the housing portion 4, and a pair of second projections for preventing the second connector 6 from coming off. The projection 12 is also formed (see FIG. 3). Both ends of the first connector 5 are vacant terminals, and the first protrusions 11 are applied to these portions (see FIG. 4). Usually, since the electric wire 2 is pulled and the first connector 5 tends to come out of the second connector 6, at least a removal preventing means (protrusion 11) is provided on the first connector 5 side.

  In the first embodiment shown in FIG. 1 to FIG. 5, the first connector 5 is inserted between the first protrusion 11 and the second protrusion 12 from above the opening 9 through the through hole 7 first. The second connector 6 is connected to the first connector 5 and both the connectors 5 and 6 (connecting connectors) are accommodated in a space surrounded by the first and second protrusions 11 and 12. At this time, the reinforcing plate 8 is applied to the tips of the first and second protrusions 11 and 12 so as to cover the housing portion 4, and the cover 10 is attached onto the reinforcing plate 8. In this way, the connector (5, 6) for connecting the FPC 1 and the electric wire 2 is securely fixed to the housing 3, and the first and second protrusions 11, 12 can also connect the connectors 5, 6 to each other. There is no risk of detachment. Further, it is only necessary to form the housing 4, the protrusions 11 and 12, the through-hole 7, etc. in the housing 3 without using a special member, that is, the connecting connector fixing portion can be easily formed in a plastic module housing. Can be molded.

  A second embodiment is shown below in FIG. In this example, the housing portion 4 as shown in FIG. 6 is formed in a part of the module housing (housing 3), and the first through the through hole 7 (convex shape) formed below the housing portion 4. The connector 5 is inserted, and the second connector 6 is received from above. The accommodating portion 4 includes a pair of guide portions 4B in which both sides of the reinforcing plate 8 are inserted instead of the recessed portions as in the first embodiment, and these guide portions 4B are connected by a back plate 4C, and a lower end. A lower plate 4D is provided, and a planar convex through-hole 7 is formed in the lower plate 4D. Further, the electric wire 2 of the first connector 5 is connected to a connection connector (not shown) for electrical components.

  FIG. 7 shows a central longitudinal cross section of FIG. 6. From this state, the first connector 5 is inserted into the accommodating portion 4 through a hole having a large opening width of the through hole 7 and is electrically and mechanically connected to the second connector 6. Connect. Since both side lengths D of the narrow portion (small opening width hole) of the convex shape of the through hole 7 are formed smaller than the width of the first connector 5 as shown in FIG. When the first connector 5 connected to the second connector 6 is pushed down, the lower portion of the first connector 5 hits the lower plate 4D in which the hole D having the length D of the through hole 7 is formed, so that it does not come out downward. In this embodiment, the hole having the length D constitutes a drop prevention means.

  9 and 10 show a state in which the first connector 5 and the second connector 6 are connected, and the second connector 6 is slid halfway along the guide portion 4B. The upper part of the pair of guide portions 4B corresponds to the opening 9 in the first embodiment. Therefore, it can be said that the state in which the second connector 6 is being accommodated in the accommodating portion 4 from the opening 9 side via the guide portion 4B is as shown in FIGS.

  11 and 12 show a state where the first connector 5 connected to the second connector 6 is pushed down until it hits the lower plate 4D. In this state, the cover 10 is attached. The first connector 5 can pass through a wide hole having a convex shape. When the first connector 5 is connected to the second connector 6 after passing through the through hole 7, a narrow hole (length) having a convex shape is formed. D), it is prevented from coming out downward even if the connecting connectors (5, 6) are pushed down as a whole. FIG. 13 shows a state in which the housing portion 4 is provided in the housing 3 and shows a state in the middle of housing the second connector 6 in the housing portion 4.

  14 and 15 show an example of the module housing (housing 3), and the second embodiment is applied to the portion X in FIG.

The perspective view which shows 1st Embodiment. The top view except the cover. FIG. 3 is a cross-sectional view taken along line AA in FIG. 2. BB sectional drawing of FIG. The CC sectional view taken on the line of FIG. The perspective view before a connection which shows 2nd Embodiment. The center longitudinal cross-sectional view of FIG. The figure seen from the lower board lower part of FIG. The perspective view in the middle of a connection. The center longitudinal cross-sectional view of FIG. The perspective view after the completion of connection. The center longitudinal cross-sectional view of FIG. The perspective view which shows the relationship between a housing and an accommodating part. The simplified side sectional view showing an example of a module case. The X partial enlarged view of FIG. The perspective view which shows a prior art example.

Explanation of symbols

1 FPC (Flexible Printed Circuit Board)
2 electric wire 3 housing 4 accommodating portion 4A bottom plate 4B guide portion 4D lower plate 5 first connector 6 second connector 7 through hole 8 reinforcing plate 9 opening 10 cover 11 first projection 12 second projection

Claims (6)

In the housing mounting structure of the connector for connecting the FPC and the electric wire, 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. ,
Forming a housing portion for housing the connector for connection in the housing;
A first connector of the connector for connection and a hole for penetration of the electric wire are formed in this accommodating portion,
A housing mounting structure for a connector for connecting an FPC and an electric wire, characterized in that a means for preventing the first connector from coming off is provided in the housing portion for connecting and housing the first and second connectors.   A reinforcing plate is provided on the back side through the FPC of the second connector, an opening for receiving the second connector is formed in the receiving portion opposite to the through hole, and this opening is a cover attached to the housing. The housing mounting structure for a connector for connecting an FPC and an electric wire according to claim 1, wherein the housing is covered.   The housing portion is formed as a recess portion, first and second protrusions are formed from the bottom plate of the recess portion to be applied to the first and second connectors, and the first and second connectors are removed from the recess portion. 3. The housing mounting structure for a connector for connecting an FPC and an electric wire according to claim 1 or 2, wherein the connector is prevented.   The both ends of the said 1st connector were made into the empty terminal, and the 1st protrusion which comprises the said drop prevention means was applied to this part, The any one of Claim 1 thru | or 3 characterized by the above-mentioned. Housing mounting structure of connector for connecting FPC and electric wire.   The housing mounting structure for a connector for connecting an FPC and an electric wire according to claim 2, wherein a guide portion into which both sides of the reinforcing plate are inserted is formed in the housing portion.   The shape of the through hole is formed in a convex shape, the length of both sides of the first connector is made larger than the length of both sides of the narrow portion of the convex shape, and the first connector is applied to the outer edge of the through hole. The housing mounting structure for a connector for connecting an FPC and an electric wire according to claim 5, characterized in that it is configured as described above.

Images