JPS5824910B2 - Connection device manufacturing method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a connector-type connecting device used for connecting printed circuit boards to each other using lead wires, and to a manufacturing method thereof that can be obtained at low cost and facilitates connection work. The present invention provides a method.

In television receivers, etc., it is common practice to divide the printed circuit board into multiple blocks and connect them with lead wires. A type of connector is used in which a connector is attached to the end of a lead wire and the connector is fitted onto a pin implanted on a printed circuit board to make the connection.

However, in the past, when connecting such connectors, the connector pins were individually fixed to the edge of each lead wire by soldering or crimping, and then each connector pin was attached to a resin Previously, the pins and the housing had to be made separately in advance to complete the connector by inserting them into the housing, and moreover, a lot of work was required to attach each pin individually, resulting in high production costs. There was a drawback.

Therefore, the present invention solves such conventional drawbacks by providing a plurality of lead wires with an integrally molded resin housing, and inserting a pin into a pin insertion hole formed in the housing and crimping it onto the lead wires. It is an object of the present invention to provide a method for manufacturing a connecting device that can be obtained at low cost by reducing the number of manufacturing steps and improving workability during manufacturing.

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below with reference to drawings showing embodiments thereof.

1 and 2 show a connection device manufactured by a manufacturing method according to an embodiment, in which a connector 2 according to the present invention is provided on one (right end) of a plurality of (five in this case) hood wires 1. The other side (left end) is shown with a holder 3 suitable for direct soldering to a printed circuit board.

The connector 2 consists of a housing 4 made of resin that is integrally molded on the end of the lead wire 1, and a pin 6 that is inserted into a pin insertion hole 5 formed in the housing 4 and connected to the lead wire 1 by crimping. Configure.

As shown in detail in FIG. 2, the housing 4 is formed and fixed to the outer periphery of the lead wire 1 so that the lead wire 1 passes through the housing 4, and is firmly fixed to the lead wire 1.

Here, for example, if the length direction of the lead wire 1 is horizontal, the pin insertion hole 5 is oriented vertically, and the pin insertion hole 5 is elongated in a direction substantially perpendicular to the lead wire 1. .

Further, the position and size of this pin insertion hole 5 are such that the lead wire 1 is at the same position as the lead wire 1 and is exposed within the hole so that the lead wire 1 crosses the portion of this pin insertion hole 5 and is exposed in the hole.
shall have a width greater than the meridian.

On the other hand, the in 6 has one end as a crimping part 7 that is crimped to the lead wire 1, and the other end as a contact part 8 that comes into contact with another pin etc.
When the pin 6 is inserted into the pin insertion hole 5, the insulation coating of the lead wire is broken by the crimping portion 7 and the pin 6 is crimped onto the conductor.

Note that 9 is a groove into which a tool for pressing the pin 6 when inserting it into the pin insertion hole 5 is fitted.

When using a connecting device having such a configuration, as shown in FIG. On the other hand, the other end of the lead wire 1 may be inserted into the connection hole 13 provided in the printed circuit board 12 and connected by soldering.

In this way, in this connection device, the housing 4 of the connector 2 is integrally formed with the lead wire 1, so it can be easily and firmly fixed so that it will not come off. Since the pin 6 is inserted into the pin insertion hole 5 and crimped onto the lead wire 1, the pin 6 can also be attached automatically and easily, making it possible to obtain a durable product at low cost. It is something.

Furthermore, since the housing 4 is fixed to the lead wire 1 in advance by integral molding, there is no need to clamp the lead wire to the housing with a clamper or the like during use, unlike conventional products, which greatly improves workability during connection. It is also possible.

Next, an example of a method for manufacturing such a connecting device will be explained with reference to FIGS. 4 and 5. First, FIG. 4 shows an example of the manufacturing process of the device as shown in FIG. The following will be explained step by step.

(a) First, a plurality of lead wires 1 are supplied in parallel from the lead wire supply glue 14.

(b) Next,... a mold 15 for molding the ushing and for molding the holder is provided, the lead wire 1 is passed through the mold 15, and an insulating resin is injected. and a holder 3 are integrally molded and provided on the lead wire 1.

...The pin insertion hole 5 and groove 9 of the housing 4 are formed using this mold 1.
Formed by 5.

(c) Next, the pin 6, which has one end formed as a crimping part 7 and the other end formed as a contact part 8 with another pin, etc., is supplied to the molded housing 4.

When supplying this pin 6, one pin 6 may be supplied individually, or a plurality of pins 6 may be supplied.
Even if the pins are arranged and supported in a holder in advance and then supplied at once, and then the holder is removed, it is also possible to use a pressed metal plate with a plurality of pins 6 connected. The material may be supplied while being cut at the connecting portion, and any suitable means may be used.

(d) Then, this pin 6 is inserted into the pin insertion hole 5 from the crimping part 7 side and press-fitted using the press-fitting jig 16, so that the insulation coating of the lead wire 1 is broken at the crimping part 7 and the conductor is inserted. to connect the lead wire 1 and the pin 6.

(e) Finally, by cutter 17...Using 4
The lead wire 1 is cut on one side of the holder 3, and the covering of the lead wire 1 on the side of the holder 3 is removed (stripped) to complete the connection device as shown in FIGS. 1 and 2.

By repeating such a process while supplying the lead wire 1 in predetermined lengths from the reel 14, the entire process can be automated and the product can be manufactured very easily and at low cost.

Note that the above-mentioned cutting step e may be performed before the pin supplying step C and the pin insertion step d.

Furthermore, in the above explanation, the case where the connector 2 is provided only at one end of the lead wire 1 as shown in FIG. 1 has been described, but the connector 2 is provided at both ends of the lead wire 10. Needless to say, it may be provided.

FIG. 5 shows an example of the manufacturing process in such a case.

Here, two housings 4 are arranged side by side using a mold 15 and are integrally molded onto the lead wire 1 with a small interval l therebetween.A pin 6 is supplied to both housings 4 and inserted into the connector. 2 and those 2
A cutter 17 is used to cut between the two housings 4.

The smaller the distance l is, the lower the loss in the lead wire 1 will be, and the heavier the vehicle will be.

In this case, the lead wire 1 is made continuous without being cut by the cutter 17, and the connectors 2 are provided at predetermined intervals along the way, and the lead wire 1 is wound onto a reel or the like, and cut as appropriate when used. You may also do so.

Further, in the above process example, the lead wire 1 is continuously supplied from the reel, but the molds for molding are arranged at predetermined intervals, and the lead wire 1 is supplied to a predetermined length in advance. Alternatively, the housing may be integrally molded by cutting the lead wire 1 and supplying the cut lead wire 1 to a mold.

Further, in each of the above embodiments, a female pin is shown as the pin 6, but it goes without saying that this can be implemented in the same manner even if a male pin is used.

As described in detail above, in the present invention, a housing is integrally molded at the end of a plurality of lead wires, and a pin is inserted into a pin insertion hole formed in the housing and crimped onto the lead wire. This makes it possible to simplify manufacturing and create connectors at low cost.In addition, the number of parts and processes can be significantly reduced, the manufacturing process can be easily automated, and lead wires and connectors can be created easily. It is possible to obtain a manufacturing method that can manufacture a highly reliable connecting device that has a high bonding strength with a connector.

[Brief explanation of the drawing]

FIGS. 1A, B, and C show a perspective view, a plan view, and a front view of a connecting device manufactured by a method for manufacturing a connecting device according to an embodiment of the present invention, and FIGS. 2A, B, and C show essential parts of the connecting device. 3 is a perspective view showing how the connecting device is used; FIGS. 4A, B and 5A, B show the method for manufacturing the connecting device of the present invention. FIG. 3 is a plan view and a sectional front view of an example of the manufacturing process in which the steps were performed. 1...Lead 1flJ, 2...Connector, 4...
Housing, 5... Pin insertion hole, 6... Pin, 7.
・・・Crimp part, 8... Contact part, 9... Groove, 14...
Reel, 15...Mold for molding, 16...Pin insertion jig, 17...Cutter.

Claims (1)

[Claims] 1. By supplying a plurality of lead wires in parallel to a mold for molding a housing, and by injecting resin into the mold, the lead wires can be formed in a substantially perpendicular direction from each of the lead wires. A process of integrally molding the uzing with the lead wire, one end of which is formed into a crimping part for crimping the lead wire, and the other end is formed into a contact part with other pins, etc. a step of inserting the pin into the pin insertion hole of the housing from the side of the crimping part, and connecting the crimping part by breaking the sheath of the lead wire and crimping it to the conductor. A method for manufacturing a connecting device, comprising: 2. A plurality of molding molds are arranged at predetermined intervals, and the plurality of lead wires are cut into predetermined lengths and fed into the mold to integrally mold the housing. A method for manufacturing a connecting device according to claim 1. 3. A step in which a plurality of lead wires are made parallel and are continuously fed to a housing molding mold at a predetermined length, and a resin is injected into the mold placed in the middle of feeding the plurality of lead wires. By doing this, a housing having an elongated pin insertion hole in a direction substantially perpendicular to each of the lead wires is integrally molded in the middle of the lead wires, and one end portion is formed as a crimping part to be crimped to the lead wires. A step of supplying a plurality of pins whose other ends are formed in contact with other pins, etc., and inserting the pins from the crimping part side into the pin insertion holes of the using, and inserting the pins into the pin insertion holes of the using, and inserting the pins into the crimping parts. A step of breaking the sheath of the lead wire and crimping it to the conductor for connection; and a step of cutting the lead wire on one side of the housing before or after the pin supply step and the pin insertion step. A method for manufacturing a featured connecting device.