JP3390150B2 - Waterproof connector for laminated FPC and mounting method thereof - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a technical field of a connector to be attached to an end of a flexible printed wiring board (hereinafter referred to as FPC) having flexibility, and in particular, a laminated FPC is liquid-tight and air-tight. It relates to a waterproof connector that terminates in.

[0002]

2. Description of the Related Art Conventionally, as a waterproof connector for liquid-tightly terminating an FPC, as shown in FIG.
The terminal (b) is pierced to (a), that is, it is crimped by penetrating the locking projection, and this FPC
Insert (a) into the slit (d) of the seal member (c), and then store it in the box-shaped insulating housing (e).
(A) It has a groove (f) through which it can pass, and the seal member pressing member (h) provided on the insulating housing (e) via the hinge (g) is rotated and locked to the insulating housing (e). Then, the seal member (C) is compressed and the FPC is compressed.
It is known that liquid tightness is obtained between (a) and the seal member (c) and between the seal member (c) and the insulating housing (e) (for example, Japanese Patent Laid-Open No. 6-203910). reference).

[0003]

By the way, a laminated FPC in which FPCs are laminated has been proposed as an FPC in which space efficiency is emphasized. According to this, the FPC is multi-polarized while keeping it compact in the width direction. Can be achieved (see, for example, JP-A-7-147488). However, when using the conventional waterproof connector,
Since the terminal (b) is crimped to the FPC (a) by piercing, it cannot be attached to the laminated FPC and terminated.
Further, even if the end of the laminated FPC is separated into each FPC, the piercing step is essential, so the productivity and workability are poor, and automation is extremely difficult. Moreover, since the piercing process is involved, the waterproof connector cannot be mounted at the final assembly site, and the waterproof connector must be carried to the final assembly site in a form mounted on the FPC.

The present invention has been made in view of such a point, and an object of the present invention is to separate and expand two FPCs from a laminated FPC without using piercing. The terminal of the male connector is brought into contact with the conductor, and the contact portion and the like are sealed in a water-soluble viscous fluid to protect it in a liquid-tight and air-tight manner.
It is to provide a waterproof connector that can be mounted on C with improved productivity and workability, can automate work, and can select the delivery form to the final assembly site.

[0005]

In order to achieve the above object, a waterproof connector for a laminated FPC according to claim 1 is provided with an insulating layer.
The upper FPC is laminated on the upper side and the lower FPC is laminated on the lower side with the exposed surfaces of the conductors facing the insulating layer.
The laminated FPC comprising eliminate the layer, a waterproof connector mounted on the free end of the insulating layer, laminated on the rear FPC
A box-shaped housing in which a slit into which is inserted, a receiving recess into which a terminal of a male connector is inserted is opened at the front end, and an introducing chamber that communicates the slit with the receiving recess is formed inside; Upper retainer and lower retainer, which are arranged above and below and which lock the laminated FPC with respect to the housing in a position to clamp the laminated FPC from above and below when pushed toward the introduction chamber, and are provided at the front end of the housing and pushed backward. The front retainer locks the housing at a position where the upper FPC is sandwiched between the receiving recess and the upper front end and the lower FPC is sandwiched between the lower front end and the receiving recess.

In this waterproof connector for a laminated FPC, the ends of the laminated FPC without an insulating layer are inserted into the slits, the ends of the upper and lower FPCs are taken out from between the receiving recess and the front retainer, and the upper retainer and the lower retainer are locked. Then stack F
If the PC is clamped, the front retainer is locked to clamp the FPC, and the terminal of the male connector is inserted into the receiving recess, the conductor of the laminated FPC contacts the terminal and the FPC is connected to the male connector. Then, by fitting the male connector to the waterproof connector and enclosing a viscous fluid having waterproofness between them,
The conductor and the terminal are liquid-tightly and airtightly protected by the viscous fluid having waterproof property. In that case, since there is no piercing process, productivity and workability are good, and automation is possible. In addition, to the final assembly site, waterproof connector, laminated FP
It is possible to select the delivery form in which the C and male connectors are carried in separately.

The waterproof connector of the laminated FPC according to claim 2 is
In the configuration of claim 1, the upper retainer or the lower retainer is formed with a first locking pin penetrating the laminated FPC, and the front retainer is formed with a second locking pin penetrating the FPC. .

With this configuration, when the upper retainer or the lower retainer is locked, the first locking pin penetrates the laminated FPC, so that the laminated FPC is reliably prevented from being pulled out. Further, when the front retainer is locked, the second locking pin penetrates the FPC, so that the slack of the contact portion of the FPC is reliably prevented.

According to a third aspect of the present invention, there is provided a method for mounting a waterproof connector for a laminated FPC, wherein the first jig inserted into the receiving recess and the first jig are slidably pierced in the front-rear direction, and the rear end has a chevron cross section. The waterproof connector for a laminated FPC according to claim 1 or 2, wherein a second jig formed on the first jig and a third jig provided on the front end of the first jig so as to be slidable in the front-rear direction are used. A method of mounting the end of the laminated FPC into the receiving recess, pushing the second jig to position the rear end in the slit, and slitting the end without the insulating layer of the laminated FPC. And inserting the upper end of the FPC from between the front retainer and the upper part of the front end of the receiving recess, and the lower end of the FPC from between the front retainer and the lower part of the front end of the receiving recess; Retract the second jig to the tool and retract the rear end to the receiving recess And a step of locking the upper retainer and the lower retainer to clamp the laminated FPC, and pushing the third jig backward with respect to the first jig to lock the front retainer to clamp the FPC. And a step of pulling out the jig from the receiving recess.

In this method of mounting the waterproof connector of the laminated FPC, the rear end of the second jig is located in the slit, so that the end of the laminated FPC can be easily separated into the upper and lower FPC ends. Further, each FPC is smoothly guided along the second jig between the receiving recess and the front retainer. And the laminated F
The insertion of the PC into the slit, the operation of each jig, and the movement of the upper retainer, the lower retainer, and the front retainer can be automated.

According to a fourth aspect of the present invention, there is provided a method for mounting a waterproof connector for a laminated FPC, wherein in the structure of the third aspect, when the laminated FPC is inserted to a widthwise outer side by a predetermined length, the laminated FPC contacts a side edge of a slit in the housing. Abutment is formed to abut and prevent further insertion.

With this configuration, when the laminated FPC is inserted into the slit, the projecting portion of the laminated FPC comes into contact with the slit side edge of the housing, so that the laminated FPC is temporarily fixed in the inserted state for a predetermined length. Therefore, the relative position of the waterproof connector with respect to the laminated FPC is prevented from being displaced, and the yield is improved.

[0013]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. 1 to 3 show a waterproof connector 100 for a laminated FPC according to an embodiment of a laminated FPC 20.
It is also shown together with the jig used for mounting to 0. This laminated FPC 200 has an FPC 210 above the insulating layer.
The lower FPC 220 is laminated on the lower side with the exposed surface of the conductor facing the insulating layer. The insulating layer is formed of, for example, a resin adhesive or the like. This stack F
At the end of the PC 200, there is no insulating layer over the length to be separated into each FPC 210, 220 inside the waterproof connector 100, for example, but this is for example a laminated FPC 200.
Do not form an insulating layer at the end of the
It is formed by removing the insulating layer once formed.
Also, if necessary, apply preload from the top and bottom to the FP.
By temporarily fixing C210 and 220 to each other, insertion into a slit 111 described later can be smoothly performed.

1 to 3, reference numeral 110 denotes a box-shaped housing made of an insulating material, and a stack F is provided at the rear end (right end in the drawing) of the housing 110.
The slit 111 into which the PC 200 is inserted is open. The slit 111 has a lateral width of the laminated FPC 200.
Is formed so that the height of the gap corresponds to the thickness of the laminated FPC 200. In addition, a receiving recess 11 into which a terminal 320 of a male connector 300, which will be described later, is inserted, is provided at the front end of the housing 110 (the left end in the drawing).
2 is formed. The receiving recess 112 is formed in a square shape when viewed from the rear. Further, inside the housing 110, an introduction chamber 113 that communicates the slit 111 with the receiving recess 112 is formed. The width of the introduction chamber 113 is the same as the width of the slit 111 and is open vertically.

A plate-shaped upper retainer 120 is provided above the introduction chamber 113, and a plate-shaped lower retainer 130 is provided below.
Are arranged, and the retainers 120 and 130 have openings 11 in the housing 110 above and below the introduction chamber 113.
4 and 115 are temporarily fitted together. Upper retainer 1
20 and the lower retainer 130 face the introduction chamber 113.
When pressed in, the laminated FPC 200 is sandwiched from above and below.
The housing 110 is locked at the holding position. You
That is , the locking pieces 121 hang down from the left and right side ends of the upper retainer 120, and when the upper retainer 120 is pushed toward the introduction chamber 113, the locking pieces 1
The hook-shaped tip of 21 overtakes and engages with the projections 116 formed on the left and right side surfaces of the housing 110, and the upper retainer 1
Housing 1 at a position where 20 holds the laminated FPC 200
It is designed to lock on 10. In addition, the locking pieces 131 stand up from the left and right ends of the lower retainer 130.
When it is pushed toward the housing 13, the hook-shaped tip of the locking piece 131 rides over and engages with the protrusions 117 formed on the left and right side surfaces of the housing 110, and the lower retainer 130 holds the laminated FPC 200 at the position where it is sandwiched. It is designed to be locked to 110.

At the front end of the housing 110, a front side retainer 140 having a square shape when viewed from the front is provided. The front retainer 140 has locking pieces 141 extending rearward from the left and right ends, and when the front retainer 140 is pushed rearward, the hook-shaped tip of the locking piece 141 of the housing 110 is pushed. The housing 110 is located at a position where the upper FPC 210 is sandwiched between the projection 118 formed on the left and right side surfaces and is engaged with the front upper end 112a of the receiving recess 112 and the lower FPC 220 is sandwiched between the lower front end 112b. It is supposed to lock against. It should be noted that the number of protrusions of the locking pieces in each retainer 120, 130, 140 is not limited to this embodiment.

The upper retainer 120 includes a laminated FPC 20.
A first locking pin 122 penetrating 0 is formed to project downward, and a first locking pin 132 penetrating the laminated FPC 200 is formed to project upward in the lower retainer 130. Then, the receiving holes 133, 1 into which the first locking pins 122, 132 are fitted are provided in the opposing retainers 130, 120.
23 is formed. In addition, the front retainer 140 has a second locking pin 14 that penetrates the FPCs 210 and 220.
2, 142 are formed. And housing 11
At 0, receiving holes 119 and 119 into which the second locking pins 142 and 142 are fitted are formed.

The upper retainer 120 and the lower retainer 130
The front retainer 140 is temporarily assembled to the housing 110 at the unlocked position before being pushed in. This may be achieved by sandwiching the housing 110 by utilizing the flexibility of the pair of locking pieces 121, 131, 141, or by using a small fitting force.
The structure may be such that 41 is fitted in the housing 110, or any part of the retainers 120, 130, 140 may be connected to the housing 110 via a thin portion. This thin portion is, for example, the housing 11
0, the upper side retainer 120, the lower side retainer 130, and the front side retainer 140 are simultaneously molded. In this way, the retainers 120, 130, 140 are prevented from falling off when the waterproof connector 100 is carried into the final assembly site. Then, if each retainer is pushed in, the holding force is resisted, or the thin-walled portion is broken and each retainer 120,
The 130 and 140 can be moved and locked.

Next, the waterproof connector 100 is laminated with the FP.
A method of mounting the C200 at the end will be described with reference to FIGS. The jig shown in FIGS. 1 to 3 will be described. Reference numeral 510 denotes a first jig that is inserted into the receiving recess 112, and the first jig 510 has a through hole 5 in the front-rear direction.
11 is formed, and the second jig 5 is formed in the through hole 511.
20 is slidably inserted in the front-rear direction, and the rear end 521 of the second jig 520 is formed in a vertical cross section. A third jig 530 is provided at the front end of the first jig 510 so as to be slidable in the front-rear direction. This third jig 530 also has a second
A through hole 531 through which the jig 520 is inserted is formed.

First, in the first step, from the state shown in FIGS. 1 and 4 in which the first jig 510 is opposed to the receiving recess 112,
The first jig 510 is inserted into the receiving recess 112 (FIG. 5), and the second jig 520 is further pushed into the first jig 510 to position the rear end 521 in the slit 111 (FIG. 6).

Next, as a second step, the laminated FPC 20
The end of the upper FPC 210 is inserted between the front retainer 140 and the upper front end 112a of the receiving recess 112 and the lower end of the FPC 210 is inserted.
The end of the PC 220 is connected to the front retainer 140 and the receiving recess 11
It comes out from between the front end lower part 112b of 2 (FIGS. 7-9). In that case, on the outer side in the width direction of the laminated FPC 200,
When the laminated FPC 200 is inserted for a predetermined length, the housing 1
An overhanging portion 230 is formed which abuts on the side edge of the slit 111 in 10 and prevents further insertion. Therefore, when the laminated FPC 200 is inserted into the slit 111, the projecting portion 230 of the laminated FPC 200 comes into contact with the slit side edge of the housing 110, so that the laminated FPC 200
Since 200 is temporarily fixed with the inserted length,
The relative position of the waterproof connector 100 with respect to the laminated FPC 200 is eliminated, and the yield is improved.

Further, as a third step, the first jig 510 is used.
On the other hand, the second jig 520 is retracted to retract the rear end 521 to the receiving recess 112 (FIG. 10).

Next, as the fourth step, the upper retainer 12
0 and the lower retainer 130 are pushed toward the housing 110 to lock and hold the laminated FPC 200 (FIG. 11). Further, the third jig 530 is pushed backward with respect to the first jig 510 and the front retainer 140 is pushed toward the housing 110 to lock and lock the FPC.
210 and 220 are clamped (FIG. 12). In that case, when the laminated FPC 200 is in a predetermined position, the laminated FPC 200 has the first locking pins 122 and 132 through which the first locking pins 122 and 132 penetrate.
Through holes 240, 240 and second through holes 250, 250 through which the second locking pin 142 penetrates are formed. Therefore, when the upper retainer 120 and the lower retainer 130 are locked, the first locking pins 122 and 132 will move to the laminated FPC 20.
Since 0 is penetrated, pulling out of the laminated FPC 200 is reliably prevented. Further, when the front retainer 140 is locked, the second locking pin 142 penetrates the FPCs 210 and 220, so that the slack of the contact portions of the FPCs 210 and 220 is reliably prevented.

Then, as a fifth step, the first jig 510 is used.
Is pulled out from the receiving recess 112 (FIGS. 13 and 14).

FIG. 15 shows a male connector 300 for connecting the waterproof connector 100. This male connector 300
Includes a cylindrical housing 310 whose inner space is divided into front and rear by a partition wall 311, and a large number of terminals 320 fixed through the partition wall 311 inside the housing 310. The terminals 320 are arranged on the upper side in the left-right direction in a number corresponding to the number of conductors of the upper FPC 210, and on the upper side, the lower FPCs 22 are arranged.
The number corresponding to the number of 0 conductors is arranged in the left-right direction. The terminal 320 is made of a conductive rod material, and the rear end protruding from the rear side of the partition wall 311 is elastically displaceable in the vertical direction. As shown in FIG. 16, the waterproof connector 100
To connect the male connector 300 to the waterproof connector 1
00 is inserted into the internal space on the rear side of the male connector 300. Then, the terminal 320 of the male connector 300 enters the receiving recess 112 of the waterproof connector 100, the upper terminal 320 contacts the conductor of the upper FPC 210, and the lower terminal 320 contacts the conductor of the lower FPC 220,
Both connectors 100 and 300 are connected. In that case, the viscous fluid 400 having a waterproof property is housed inside the housing 310 of the male connector 300. Therefore, the waterproof viscous fluid 400 is compressed by the waterproof connector 100 that has entered the internal space on the rear side of the male connector 300 and reaches the inside of both housings 110 and 310 to fill the gap. , Upper and lower FPC2
The conductors 10 and 220 and the terminal 320 are completely covered with the viscous fluid 400 having a waterproof property and protected in a liquid-tight and air-tight manner. The waterproof viscous fluid 400 includes a gel-like sealing member exemplified by a silicone gel, and is formed in, for example, a rectangular parallelepiped shape to form a partition wall 311.
Housing 3 from the end to the tip of terminal 320
It is arranged so as to contact the inner surface of 10. The waterproof viscous fluid 400 may be housed in the housing 310 after being molded as described above, or may be filled in the housing 310 in a fluid state. A female connector (not shown) is connected to the male connector 300. This female connector is inserted into the internal space on the front side of the male connector 300, for example, and is provided with female terminals that fit into the respective terminals 320 of the male connector 300. In this case, when a waterproof viscous fluid is stored in the internal space on the front side of the male connector 300, the waterproof viscous fluid is compressed by the female connector that has entered the internal space, and the male connector 300 is compressed. The gap of the female connectors is spread to the inside of the housing to fill the gap, and the terminals of both connectors are completely covered with the viscous fluid having a waterproof property to be protected liquid-tightly and airtightly.

Therefore, in the above embodiment, the FPC
Since the conductors 210 and 220 and the terminals 320 are liquid-tightly and air-tightly protected by the viscous fluid 400 having a waterproof property, the conductors and terminals 320 made of water, water vapor, various gases, or the like.
It is possible to surely prevent the corrosion and the like. In that case, since there is no piercing step when the waterproof connector 100 is mounted on the laminated FPC 200, productivity and workability are good, and automation is possible. Further, it is possible to select a delivery form in which the waterproof connector 100, the laminated FPC 200, and the male connector 300 are individually carried into the final assembly site.

In addition, the waterproof connector 1 of the laminated FPC 200
In the mounting method of 00, the rear end 521 of the second jig 520 is located in the slit 111, so that the end of the laminated FPC 200 is easily separated into the end of the upper and lower FPCs 210 and 220. In addition, each FPC 210 along the second jig 520,
220 is smoothly guided between the receiving recess 112 and the front retainer 140. The insertion of the laminated FPC 200 into the slit 111, the operation of the jigs 510, 520 and 530, and the movement of the upper retainer 120, the lower retainer 130, and the front retainer 140 can be automated.

Further, although the present invention includes an embodiment in which neither retainer pin is formed on the retainer, the upper retainer 120 or the lower retainer 130 is provided with the first retainer pins 122, 132 penetrating the laminated FPC 200. When formed, when the upper retainer 120 or the lower retainer 130 is locked, the first locking pins 122 and 132 are attached to the laminated FPC 20.
Since 0 is penetrated, pulling out of the laminated FPC 200 is reliably prevented. In addition, the front retainer 140 has an FPC2
When the second locking pin 142 penetrating through 10, 220 is formed, the second locking pin 142 penetrates through the FPC 210, 220 when the front retainer 140 is locked.
The slack of the contact portions of the PCs 210 and 220 is reliably prevented. The present invention is an embodiment in which the first retaining pin is formed on the upper retainer or the lower retainer and the second retaining pin is not formed on the front retainer, and the second retaining pin is formed on the front retainer and the upper retainer is formed. Alternatively, it includes an embodiment in which the first retaining pin is not formed on the lower retainer. In the above embodiment, the first retaining pins 122 and 132 are formed on both the upper retainer 120 and the lower retainer 130, but the first retaining pins are formed only on either the upper retainer or the lower retainer, and You may form a receiving hole in the other retainer which opposes. In the present invention, the receiving holes 133, 12
3 and 119 are not formed, but when the receiving holes 133 and 123 are formed as in the above embodiment,
First locking pins 122, 132 and retainers 130, 120
Since there is no gap between the laminated FPC2 and
Withdrawal of 00 is prevented. Similarly, when the receiving hole 119 is formed as in the above embodiment, the second locking pin 1
Since there is no gap between 42 and the housing 110,
Further, the slack of the contact portion of the laminated FPC 200 is reliably prevented. Note that the number of locking pins is not limited to the embodiment.

The present invention also includes an embodiment in which the waterproof connector 100 is mounted on the laminated FPC 200 without forming an overhang portion. However, when the overhang portion 230 is formed as in the above embodiment, the laminated FPC 200 is slit 111.
As it is inserted into the housing 11,
Since the laminated FPC 200 is temporarily fixed in a state where the laminated FPC 200 is inserted for a predetermined length by contacting the slit side edge of 0, the laminated FP
The relative position of the waterproof connector 100 with respect to the C200 is kept constant, and the yield is improved.

Although the present invention includes an embodiment in which the upper retainer, the lower retainer, and the front retainer are not temporarily assembled to the housing, one of the retainers 120, 13 is
When the 0, 140 are temporarily assembled to the housing 110, the retainers 120, 130, 140 are prevented from falling off when the waterproof connector 100 is carried into the final assembly site. Then, when the three retainers 120, 130, 140 are temporarily assembled to the housing 110 as in the above-described embodiment, each retainer 120, 13 is loaded when the waterproof connector 100 is carried into the final assembly site.
It is possible to reliably prevent 0 and 140 from falling off. When any one of the retainers 120, 130, 140 is connected to the housing 110 via the thin portion, the waterproof connector 100 is manufactured and temporary assembly is completed at the same time.
It's simple.

[0031]

As described above, the laminated layer F of claim 1
According to the waterproof connector of the PC, this is mounted on the laminated FPC, the terminals of the male connector are inserted into the receiving recesses, the housing of the male connector is fitted into the housing of the waterproof connector, and a waterproof viscous material is provided therebetween. If you enclose the fluid,
The conductor and the terminal can be protected in a liquid-tight and air-tight manner by the viscous fluid having waterproof property, and the conductor and the terminal can be surely prevented from being corroded by moisture, water vapor, various gases and the like.
In that case, since there is no piercing step, the waterproof connector can be mounted on the laminated FPC with improved productivity and workability, the work can be automated, and the delivery form to the final assembly site can be selected.

According to the second aspect, since the first locking pin and the second locking pin penetrate the laminated FPC, the laminated FP
It is possible to reliably prevent the pull-out of C and the slack of the contact portion of the laminated FPC.

According to the method of attaching the waterproof connector of the laminated FPC of the third aspect, the attachment of the waterproof connector to the laminated FPC can be automated by using a simple jig.

According to the present invention, the projecting portion abuts against the slit side edge of the housing to prevent further insertion, and the laminated FPC is temporarily fixed in the inserted state for a predetermined length. The relative position of the waterproof connector with respect to the FPC does not become out of alignment, and the yield can be improved.

[Brief description of drawings]

FIG. 1 is a perspective view showing a waterproof connector and a jig of a laminated FPC according to an embodiment.

FIG. 2 is a perspective view showing the components of the waterproof connector and the jig in an exploded manner.

FIG. 3 is a perspective view showing each constituent member of FIG. 2 in a cross section at the center in the left-right direction.

FIG. 4 to FIG. 13 are views sequentially showing steps in an embodiment of a method of mounting the waterproof connector on a laminated FPC. In each figure, the perspective view of the cross section at the center in the left-right direction is shown at the top, and the cross section is shown below. This figure shows a state in which the first jig faces the receiving recess.

FIG. 5 shows a state in which the first jig is inserted into the receiving recess.

FIG. 6 is a state in which a second jig is pushed into the first jig and the rear end is positioned in the slit.

FIG. 7 shows a state in which the end of the laminated FPC is about to be inserted into the slit.

FIG. 8 shows a state in which the end of the laminated FPC is being inserted into the slit.

FIG. 9: Completely insert the end of the laminated FPC into the slit, and let the end of the upper FPC come out between the front retainer and the upper part of the front end of the receiving recess, and make the end of the lower FPC the front retainer and the front end of the receiving recess. It is in a state where it comes out from between the lower part.

FIG. 10 shows a state in which the second jig is retracted with respect to the first jig and the rear end is retracted to the receiving recess.

FIG. 11 is a state in which an upper retainer and a lower retainer are pushed in to be locked to sandwich the laminated FPC.

[Fig. 12] Pushing in the front side retainer to lock and F
It is a state where the PC is clamped.

FIG. 13 is a state in which the first jig is pulled out from the receiving recess.

14 is an overall perspective view of FIG.

FIG. 15 is a perspective view showing the waterproof connector mounted on the laminated FPC and a male connector connected to the waterproof connector.

FIG. 16 is a perspective view showing a state where the male connector is connected to the waterproof connector.

FIG. 17 is an exploded perspective view showing a conventional example.

[Explanation of symbols]

100 waterproof connector 110 housing 111 slit 112 receiving recess 112a upper front end 112b Lower front end 113 Introduction room 120 Upper retainer 122 First locking pin 130 Lower retainer 132 First locking pin 140 Front retainer 142 Second locking pin 200 laminated FPC 210 FPC 220 FPC 230 Overhang 240 First through hole 250 Second through hole 300 male connector 320 terminals 400 Water-resistant viscous fluid 510 First jig 520 Second jig 530 Third jig

Claims (4)

(57) [Claims] 1. An FPC on the upper side of the insulating layer and a FPC on the lower side of the insulating layer.
Each of the FPCs has the exposed surface of the conductor facing the insulating layer.
Laminating Te, formed by eliminating the insulating layer at the end laminated FPC
Of a waterproof connector mounted on the free end of the insulating layer, the slit is opened to laminating FPC is inserted into the rear end, and an opening receiving recesses terminal of the male connector is inserted into the front end,
A box-shaped housing having an introducing chamber formed therein, which communicates the slit with the receiving recess, and arranged above and below the introducing chamber. When pushed toward the introducing chamber, the laminated FPC is clamped from above and below to the housing. The upper retainer and lower retainer that lock against each other are provided at the front end of the housing, and when pushed rearward, the upper FPC is clamped between the upper end of the front end of the receiving recess and the lower retainer between the front retainer and the lower end of the front end. A waterproof connector for a laminated FPC, comprising: a front side retainer that locks with respect to the housing at a position where the FPC is clamped. 2. The upper retainer or the lower retainer is formed with a first locking pin penetrating the laminated FPC, and the front retainer is formed with a second locking pin penetrating the FPC. 1. A laminated FPC waterproof connector as described in 1. 3. A first jig inserted into the receiving recess, and a first jig.
A second jig penetrating the jig slidably in the front-rear direction and having a rear end formed in a chevron cross section, and a third jig provided at the front end of the first jig so as to be slidable in the front-rear direction. And the waterproof connector of the laminated FPC according to claim 1 or 2.
A method of attaching to the end of C, a step of inserting the first jig into the receiving recess and pushing the second jig to position the rear end in the slit, and inserting the end without the insulating layer of the laminated FPC into the slit. Then, the step of bringing the end of the upper FPC out between the front retainer and the upper part of the front end of the receiving recess and the end of the lower FPC between the front retainer and the lower part of the front end of the receiving recess, and the first jig. On the other hand, the step of retracting the second jig to retract the rear end to the receiving recess, and the upper retainer and the lower retainer are locked to sandwich the laminated FPC, and the third jig is moved backward relative to the first jig. Laminate F comprising a step of pushing in and locking the front side retainer to hold the FPC, and a step of pulling out the first jig from the receiving recess.
How to attach the waterproof connector of the PC. 4. The laminated FPC is provided on the outer side in the width direction of the laminated FPC.
4. The method for mounting a waterproof connector of a laminated FPC according to claim 3, wherein when a predetermined length is inserted, the protruding portion is formed so as to come into contact with the side edge of the slit in the housing to prevent further insertion.