JP2700090B2 - Method for manufacturing face-down connector - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of manufacturing a connector, and more particularly to a novel face-down connection connector for connecting two spaced circuit boards having connection terminals on the upper surface. And a method for producing the same.

[0002]

2. Description of the Related Art Conventionally, two circuit boards, which are vertically separated so that connection terminals are opposed to each other, are connected by a press-contact and sandwich type elastomer connector. In liquid crystal display devices, especially plasma displays, the mounting form in which the connection terminals of the drive circuit board and the glass substrate of the device are oriented in the same direction has been put to practical use due to higher density, lower cost, and smaller mounting. Therefore, as for a method of connecting two spaced circuit boards each having a connection terminal on the upper surface (face-down connection method), a method of efficiently performing this is required.

[0003] Therefore, the present inventor has proposed face-down connection.
Conducted research on use connectors, shown in Figure 4, the connector base material 4 to the conductive line member 3 on the sheet-like insulating member 2 formed by providing at regular intervals, the length of the conductive line member 3
The top horizontal part obtained by bending in a Z-shape in the
A Z-shaped molded product consisting of a vertical part and a horizontal part
Inverted L-shaped L-shaped insulating portion along the entire surface on the side of the edge member 2
The material 14 is provided, and the upright portion is provided on the conductive wire member 3 side.
Arranged at intervals of insulating rubber rod-like body 8 from the upper surface horizontal portion
Proposed a connector for face-down connection with an improved structure
(Japanese Utility Model Application No. 5-11865). According to this, in this opening 17 ,
Is inserted a circuit board having a connecting terminal to the upper surface, when placed on a circuit board having a connecting terminal to which the upper surface, connected by a shortest distance of the two connection terminals via the conductive line member 3 of the connector Therefore, it has been confirmed that two spaced circuit boards having connection terminals on the upper surface are easily face-down connected.

[0004]

However, in the manufacture of this connector, since it is composed of various parts, a process is required.
In addition to the increase in time and effort , flexible conductive wire members
Forming with soft sheet-shaped insulating member without distortion
It was Tsu there a problem that difficult.

[0005]

SUMMARY OF THE INVENTION The present invention relates to a process for the preparation of such to solve the problem and face-down connector described above, on one side of the sheet-like insulating member
A plurality of conductive wire members are oriented and arranged at intervals
In the middle part of the connector base material on the conductive wire member side , an insulating rubber rod is adhered along the arrangement direction of the conductive wire members,
Connector base material protruding from both sides of insulating rubber rod
Of the sheet along the insulating rubber rod.
Bend to the edge member side, and insulate the other protrusion
The clamping allowance of the circuit board to be clamped from the side of the rubber rod
In a position where the wire is opened, place a conductive wire along the insulating rubber rod.
Bend to the member side and then the other side of the sheet-like insulating member
That you covered with L-shaped insulating member in which the features.

[0006]

According to the present invention, the connector has the above-mentioned structure . As shown in FIG. 4, the connector has a connector base material 4, an insulating rubber rod 8 and an L-shaped insulating member 14, as shown in FIG.
It consists of an opening 17, which is shown in FIG.
(A)-(c), FIG. 2 (a), (b), FIG. 3 (a),
It is manufactured by the process shown in FIG.

In the method of manufacturing a connector according to the present invention,
A nectar base material 4 is prepared. As shown in FIG. 1 (a), a known rubber material such as silicone rubber, nitrile rubber, neoprene or the like is used as a crosslinking agent, a curing agent and, if necessary, a filler, a plasticizer, a coloring agent, a stabilizer, and the like. An uncured insulating rubber compound to which a heat resistance improver or the like has been added is placed on the polyester film 1 in a conventional manner by 0.1 to 0.2 m
The conductive wire member 3 such as a thin metal-plated wire is provided on one surface of the sheet- shaped insulating member 2 made of uncured rubber , which has been thinly divided into m.
Are oriented at a distance from each other and this is a polyester
For each film 1, each conductive wire member 3 is 1/3 to 2 /
3 If the polyester film 1 is peeled off by heating and pressing between the lower hot plate 5 and the upper hot plate 6 so as to be buried ,
A connector base material 4 in which the conductive wire member 3 and the sheet-like insulating member 2 are bonded and wired is obtained. Next, this connector mother
The material 4 traverses the conductive wire member 3 as shown in FIG.
The cutter 7 cuts to an appropriate length in the direction shown in FIG.

As shown in FIG. 4, the connector base material 4 has an upper horizontal portion, an upright portion, and a lower horizontal portion bent in a Z-shape .
Conductive lines of the connector base material 4 as shown in (c)
The intermediate portion of the member 3 side, insulating rubber rod-shaped body 8, the conductive line
It is arranged along the arrangement direction of the members 3 , which is shown in FIG.
As shown in FIG. 3A, the lower and upper bonding dies 10 and 11 are used to bond to the intermediate portion on the conductive wire member 3 side as shown in FIG.

Next, as shown in FIG. 2 (a), the connector base material 4 is formed by bending a lower mold 12 and an upper mold 13 for bending.
Of the rods protruding from both sides of the insulating rubber rod 8
One projection of the nectar base material 4 is aligned with the insulating rubber rod 8.
With bent sheet-like insulating member 2 side I, the other
Should be clamped from the side of the insulating rubber rod 8.
Insulated rubber rods at the position where the clamping allowance of the circuit board is opened
FIG. 3B is bent along the body 8 toward the conductive wire member 3 side .
2 (b). Next, as shown in FIG. 2 (b) , the L-shaped insulating member 14 is provided on the sheet-shaped insulating member 2 side with a lower mold 15 for connector molding. The connector of the present invention is covered with the upper mold 16 for forming a connector.

The insulating rubber rod 8 and the L-shaped insulating member 14 constituting the connector of the present invention are preferably made of silicone rubber having good environmental resistance and contamination resistance. The uncured insulating rubber compound thus obtained may be formed in a mold. The conductive wire member 3 in this connector is made of a thin metal-plated wire so as to be low in compression and stable in resistance, capable of supporting a high voltage (about 300 V) and a large current (300 to 500 mA). Although good, this thing is strong rigidity, it is necessary to the bent state in a mold as shown in FIG. 2 (a) to the Z-shape.

[0011]

Next, examples of the present invention will be described. 1) a 0.5% NetsuOsamu shrinkage rate at 50μm thickness, the R _a of 0.8 to sandblasting the surface, the surface on the surface of a polyester film treated with a surfactant, hardness of 50 °
Silicone rubber compound KE-153 U
[Shin-Etsu Chemical Co., Ltd. product name] 100 parts by weight, additional vulcanization type vulcanizing agent, C-19A [Shin-Etsu Chemical Co., Ltd. product name]
0.5 parts by weight, C-19B [trade name of the company] 2.5 parts by weight and silane coupling agent KBM-403 [trade name of Shin-Etsu Chemical Co., Ltd.] 1.0 part by weight were added and kneaded. Silicone rubber composition, 0.1mm thickness sheet
It was obtained Jo insulating member 2.

2) Then, on the sheet-like insulating member 2 made of the separated silicone rubber composition, a gold-plated thin wire obtained by plating an Au—Co alloy to a thickness of 0.4 μm on a brass thin wire having a diameter of 40 μm was 0.1 mm. After arranging at intervals, 6kgf / cm
² under pressure aged 8 minutes, heated molded for 15 minutes at 120 ° C., it was peeled off after molding a polyester film, a sheet-like insulation gold plated fine wire is made of a silicone rubber composition
About 2/3 of the connector base material 4 embedded and formed in the rim member 2 was obtained [see FIG. 1 (a)].

[0013] 3) connector base material 4 is determined to 14mm width must be agreed <br/> essential dimensions of the connector, so that the length direction and mosquitoes <br/> Potter 7 of the conductive line member 3 is at a right angle Cut . At this time, the burr of the conductive wire member 3 causes insufficient contact with the molded body, a defect, etc.
It is preferable to cut from the conductive wire member 3 side so that burrs come out to the sheet-shaped insulating member 2 side so that no burrs occur (see FIG. 1B).

[0014] 4) This connector base material 4 is of insulating rubber rod-like <br/> body 8 is adhered, the insulating rubber rod-like body 8
Is a liquid silicone rubber having a hardness of 35 ° H. KE-1983
A / B [trade name of Shin-Etsu Chemical Co., Ltd.] is 5mm x 5mm x
It was formed by heating to 250 mm. The adhesion of the insulating rubber rod-like body 8 is performed by adding an additional vulcanization type room temperature curable adhesive KE-1800TA / T to the surface of the vulcanized silicone rubber molded body.
B [trade name of Shin-Etsu Chemical Co., Ltd.] 9 is applied to a thickness of 30 μm by a screen printing method and inserted into the lower die 10 for bonding.
Further, the connector base material 4 obtained in FIG. 1B is arranged so that the conductive wire member 3 is on the side of the adhesive 9, and the temperature is 130 ° C., the pressure is 10 kgf / cm ² , and the pressure is 10 seconds in the upper bonding die 11. Vulcanized adhesive molding under the molding conditions [see FIGS. 1 (c) and 3 (a)].

5) In this manner, the connector base material 4 and the insulating rubber rod 8 are bonded and integrated, and the lower mold 12 for bending is used.
At 150 ° C and pressure using the upper mold 13 for bending.
It was molded in a Z- shape under molding conditions of 10 kgf / cm ² and 5 minutes [see FIGS. 2 (a) and 3 (b)].

6) Fig. 3 of the molded body thus obtained
(B) is, but then is to bond formed into an L-shaped L-shaped insulating member 14 which, which connector base material 4 fitted with insulating rubber rod-like member 8 which is formed in a Z-shape Is inserted into a lower mold 15 for molding a connector, and an L-shaped insulating member 14 made of liquid silicone rubber KE-1983A / B (described above) having a hardness of 35 ° H is sheet-shaped insulated. Fill to the member 2 side , 130 ℃ temperature, 10kg pressure in the upper mold 16 for connector molding
When molding was performed under molding conditions of f / cm ² and 60 seconds, the connector base material 4 and the L-shaped insulating member 14 were bonded and formed.
The connector having the shape shown in FIG.

[0017]

According to the method of the present invention, since the bending processing can be easily performed in the conductor wire member having rigidity face Dow
It is possible to easily manufacture the down connector with efficient stable quality.

[Brief description of the drawings]

1 (a) to 1 (c) are longitudinal sectional views of a connector manufacturing process according to the present invention.

FIGS. 2A and 2B are longitudinal sectional views of a connector manufacturing process according to the present invention.

FIGS. 3A and 3B are longitudinal sectional views of a connector made according to the present invention.

FIG. 4 is a longitudinal sectional view of a connector manufactured according to the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Polyester film, 2 ... Sheet-like insulating member, 3 ... Conductive wire member, 4 ... Connector base material, 5 ... Lower heating plate, 6 ... Upper heating plate, 7 ... Cutter, 8 ... Insulating rubber rod shape /> Body, 9: adhesive, 10: lower die for bonding, 11: upper die for bonding, 12: lower die for bending, 13: upper die for bending, 14: L-shaped insulating part
Material , 15 ... Lower mold for connector molding, 16 ... Upper mold for connector molding, 17 ... Opening

Claims (1)

(57) [Claims] 1. A method of manufacturing a face-down connector
Method, wherein a plurality of conductive materials are provided on one side of the sheet-shaped insulating member.
A connector in which wire members are oriented and arranged at intervals.
The middle portion of the conductive line member side of the base material, the insulating rubber rod-shaped body
Glue along the direction of arrangement of conductive wire members, and use an insulating rubber rod.
One protrusion of the connector base material protruding from both sides of the body
To the sheet-like insulating member side along the insulating rubber rod.
While bending, the other protruding part is made of an insulating rubber rod.
Opening the circuit board to be clamped from the side
And fold it along the insulating rubber rod to the conductive wire side.
Bending, then the other side of the sheet-shaped insulating member is L-shaped insulating
Method for manufacturing a face-down connection <br/> connector characterized that you coated member.