JPH042073A - Connector for short-circuiting of electric circuit - Google Patents

Abstract

PURPOSE:To prevent the arranging pitch from becoming out of order and maintain good contact pressure between terminals by forming each terminal in a single piece with a support by means of insert molding, embedding part of the leg part and the contact part in the support, holding them fast, and permitting the terminal to deform with external force. CONSTITUTION:A plug connector 10 is formed in a single piece through insert molding of an insulative support 12 and a conductive terminal 11 consisting of a leg part 19 and a contact part 18. This contact part 18 is embedded in the mating side face in the condition the outer side face is exposed at the mating side face of the support 12, and is stretched upward. The leg 19 is folded outward symmetrically, and the end of the leg 19 is stretched outward from the opposite side of the bottom of the support 12. Thereby the terminal deforms with external force to prevent failure in the electric contacting with the contact part of the mating terminal when external force causes the arranging pitch to become out of alignment. Thus good contact pressure with the mating party can be maintained at all times.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a connector for shorting an electrical circuit, and more particularly, a connector for selectively connecting or switching signal circuits on a printed circuit board, particularly a connector for connecting or switching signal circuits on a printed circuit board. This invention relates to a plug connector for mounting on a circuit board.

[Prior Art] A switch is normally used as a means for cumbersomely switching signal circuits in electronic equipment.

However, in some electronic devices or depending on their parts, the frequency of signal circuit switching is extremely low. These electronic devices typically use shorting connectors rather than expensive switches.

Conventionally, this type of connector has been disclosed, for example, in Japanese Patent Application Laid-Open No. 60-16
0584, Jitkai Showa 61-76688, Jitkai Showa 62-5
As seen in 9981, terminal pins (posts) are press-fitted into an insulating support plate (herata).

(Problems to be Solved by the Invention) However, the above-mentioned prior art has the following drawbacks.

(1) Since the terminal pins protrude outward from the insulating support plate, they are easily affected by external forces, and for example, are easily deformed by external forces, resulting in deviation from the predetermined arrangement pitch.

(2) In order to hold the terminal pins perpendicularly to the insulating support plate, the insulating support plate must have a necessary and sufficient thickness, but such an insulating support plate is necessarily taller than the connector. I wanted to, but I couldn't provide a low-profile connector. Such tall connectors cannot meet the demands for higher mounting density of electronic components on the surface of printed circuit boards and for smaller, lighter, thinner connectors.

(3) Since it is necessary to press-fit the terminal pin into the insulating support plate, the work becomes complicated. In particular, low-profile connectors have very small component parts, which makes it difficult to assemble them, and it is difficult to guarantee a high quality that is common to all connectors.

(4) When surface mounting terminal pins on a printed circuit board, some connectors require bending of the terminal pins, but such connectors become more complicated or complicated, so low-cost connectors It is not possible to provide.

An object of the present invention is to integrate a pair of conductive terminals and an insulating support by insert molding, and to create a structure in which the integration of the two is not loosened or the contact portion of the terminal is not deformed by external force. It is an object of the present invention to provide a connector for shorting an electric circuit which can overcome each of the above-mentioned drawbacks by adding additional features.

[Means for solving H problem]

The electrical circuit shorting connector according to the present invention solves the above problems by integrating a conductive terminal having a contact portion and a leg portion with an insulating support by insert molding, and by adopting the following configuration.

One basic configuration of the connector is that the contact portions of the pair of terminals are buried in opposite sides of the support and extend upward, with their outer surfaces exposed on the opposite sides of the support. The leg portions of the pair of terminals are bent outward in a symmetrical manner, and the ends of the leg portions extend outward from opposite sides of the lower end of the support.

Another basic configuration of the connector is that the leg portions of the pair of terminals extend vertically downward through symmetrical outwardly bent portions. The other configurations are the same as the basic configuration aspect described above.

In the embodiment, the support is a columnar part.

It is preferable that the contact part is located in the columnar part, and that the leg part is made to penetrate through the base plate part.

Further, in the embodiment, it is preferable that the lower surface of the end of the leg portion and the lower surface of the support body are located on substantially the same plane.

Furthermore, in the embodiment, it is preferable that the outer surface of the contact portion be located substantially on the same plane as the outer surface of the support, and the upper end surface of the contact portion be located on the same plane as the upper end surface of the support. .

[Action and effect]

According to the connector according to the present invention having the above-mentioned configuration, the fourth function and effect can be achieved.

(1) The terminal is integrally formed with the support by insert molding, and the contact portion and at least a portion of the leg portion are embedded in the support and fixed and held as one unit. Therefore, the terminal will not be deformed by external force and the arrangement pitch will be out of order, which will not affect the electrical contact with the contact part of the mating terminal, and it will always maintain good contact pressure with the contact part of the mating terminal. (Claims 1 and 2) Moreover, the height of the connector does not increase due to the support, and the connector can fully meet the demands for higher mounting density of electronic components on printed circuit boards and for miniaturization.

(2) As mentioned above, the terminal is fixed and held integrally to the support body, and the leg portion is bent outward in the support body, so that the terminal cannot be bent in a direction perpendicular to the terminal. Even if a strong external force is applied, the integration with the support does not loosen (Claim 1).

(3) Since the leg portions of the terminals are pre-bent, in the case of a connector that is surface-mounted on a printed circuit board by bending the leg portions, there is no need to perform complicated bending work during mounting. Moreover, the end portion of the leg portion extending from the support body is positioned substantially in the same plane as the lower surface of the support body,
In other words, it doesn't stick out. Therefore, when the connector is surface mounted on a printed circuit board, the lower surface of the connector can be stably and firmly fixed to the surface (claims 1 and 4).

(4) This is due to the fact that the outer surface of the contact part of the terminal is located on the same plane as the outer surface of the support, and the upper end surface of the contact part is located on the same plane as the upper end surface of the support, so that the terminal protrudes. (Claim 5)

(5) Since the support body is composed of a columnar part and a plate-like part with a wider cross-section than the columnar part, the amount of material constituting the support body can be kept as small as possible to suppress an increase in the cost of the connector. It is possible to reduce the bulk and to improve the fixing stability to the surface of the printed circuit board (Claim 3).

(6) Since the terminal and support body are integrated by insert molding, there is no need to assemble the two, making it possible to mass-produce the connector at a low cost, while ensuring the same high quality for all connectors. You can wait.

[Example] The connector according to the present invention will be further described below based on the illustrated example.

FIG. 1 shows a perspective view of a plug connector 1o according to the present invention surface-mounted on a printed circuit board 100.

A wiring pattern 101 constituting a signal circuit is printed on the surface of the printed circuit board loo, and a plug connector 10 is mounted on the wiring pattern of each circuit. A shorting receptacle connector 5o is selectively fitted and connected to each plug connector 10. For example, in the first illustration, when the receptacle connector 50 fitted and connected to the plug connector 10 on the wiring pattern 101'' is removed and the plug connector 10 on the wiring pattern 101''
1, the circuit passing through the wiring pattern 1" is opened and the circuit passing through the wiring pattern 101" is closed.

FIG. 2 is a perspective view of the plug connector 10, and FIG. 3 is a side view of the plug connector 10 in partial section.

The plug connector IO is composed of a pair of conductive terminals 11 and an insulating support (housing) 12.

The terminal 11 and the support body 12 are integrated by insert molding.

The support body 12 is composed of a columnar portion 13 and a base plate portion 14 that is wider than the cross section of the columnar portion 13. A fitting guide groove 15 is formed in the vertical direction at the center of one opposing side surface of the columnar portion 13 . Upper end 1 of fitting guide groove 15
6 is formed into a tapered shape, and the upper end 17 of the other opposing side surface of the columnar portion 13 is formed into an inclined surface.

By forming the connector in this manner, the plug connector 1o can be reliably and easily fitted into the receptacle connector 50. The lower surface of the base plate-shaped portion 14 is provided with four downwardly directed portions 20.

A pair of terminals II includes a contact portion 18 and a leg portion 19.
It has The contact portion 18 is formed on the outward outer side of the columnar portion 13 so that its outer surface or the opposing outer surface of the columnar portion 13 is located substantially on the same plane as its upper end surface or the upper end surface of the columnar portion 13, respectively. It is filled along. Leg part 1
9 is symmetrically bent outward and passes through the base plate-like portion 14, with an end portion 19° extending outward. The lower surface of the end portion 19' and the lower surface of the base plate-like portion 14 are located substantially on the same plane. However, the vertical side edges of the columnar part 13 located on the same side as the contact part 18 protrude outward from the outer surface of the contact part 18, and the contact part 18
It is also possible to define a groove whose bottom surface is the outer surface of the receptacle connector 50, and into which an elastic leg 58 of a terminal 51 (described later) of the receptacle connector 50 is slidably fitted.

In the plug connector 10 having the above structure, the first
As shown in the figure (see also FIG. 7), the lower surface of the base plate-shaped portion 14 is brought into contact with the wiring pattern 101, and the leg portion 1 of the terminal 11
The end portion 19' of 9 is fixed by soldering 102 and electrically connected to the wiring pattern 101.

The four parts 20 on the lower surface of the base plate-shaped part 14 are provided to allow the flux to escape during the soldering and to make it easier to clean the flux stagnant there.

4 is a perspective view of the receptacle connector 50, FIG. 5 is a sectional view taken along line V-V in FIG. 4, and FIG. 6 is a perspective view of the receptacle connector 50.
A cross-sectional view taken along the line I-Vl is shown in each case.

The receptacle connector 50 is composed of a conductive terminal 51 and an insulating housing 52. The terminal 51 and the housing 52 are integrated by insert molding.

The housing 52 includes an upper wall portion 53 and a peripheral wall portion 54. A fitting protrusion 55 that slides into the fitting guide groove 15 is formed in the vertical direction at the center of the opposing inner surface of the circumferential wall portion 54 .

The terminal 51 is connected to the tree part 5 buried in the upper wall part 53.
6, and an elastic zinc 58 that hangs down inside the peripheral wall portion 54 and has a raised contact portion 57. Fridge part 5
By penetrating a hole 56' drilled in 6 through a part 53' of the upper wall portion 53, the integration of the terminal 51 and the housing 52 is strengthened. By providing a plurality of uneven strips 59 extending laterally on the opposing side surface of the circumferential wall portion 54, it is possible to prevent an operator's fingers from slipping when fitting and connecting the receptacle connector 5o to the plug connector 10. I can do it.

FIG. 7 shows a vertical sectional view of the plug connector 10 and the receptacle connector 50 in a fitted connection state.

In this fitted and connected state, the fitting guide protrusion 55 of the housing 52 fits into the fitting guide groove 15 of the support body 0, and the fitting guide protrusion 55 of the housing 52 fits into the contact part 18 of the terminal 11 (see Fig. 2 and Fig. !$3). The contact portions 57 of the terminals 51 are electrically contacted by the elastic force of the leg portions 58.

FIG. 8 is a perspective view of a plug connector 10 as another embodiment, and FIG. 9 is a side view of a partial cross section thereof.

In the plug connector 1o of this embodiment, the leg portions 19 of the pair of terminals 11 are bent outward in a symmetrical manner, and this bent portion 19° penetrates the base plate-like portion 14 of the support body 12; The plug connector 10 extends vertically downward through the bent portion 19''.The other structure is the same as that of the support 12 shown in FIGS. 2 and 3. The portion 19 is inserted into a through hole of a printed circuit board (not shown) for electrical connection.

FIG. 10 is a schematic plan view of the process of insert molding the plaque connector 10, and FIG. 11 is a partially sectional side view thereof.

A plurality of terminals 1 (as shown in FIGS. 2 and 3) are punched out of a conductive metal plate so as to be arranged in a chain with a carrier portion 21 interposed therebetween. This terminal 1
Cut the central part of one group to form the edge 18'' of the contact part, and with a predetermined spacing between the 11 groups of terminals in both rows, connect the 11 groups of terminals in both rows with an insulating material such as synthetic resin. 12 groups of supports are integrated by insert molding as described above. After this shaping, the terminals 11 of the individual plug connectors 10 are cut off from the carrier part 2I on the cutting line 22. Note that 200 in the figure indicates a deformation prevention member for the group of terminals 11 with the carrier portion 21 during the molding. Although not shown, the receptacle connector 50 can also be insert-molded in substantially the same manner.

[Brief explanation of drawings]

FIG. 1 is a perspective view of a plug connector according to an embodiment of the present invention surface-mounted on a printed circuit board. FIG. 2 is a perspective view of the plug connector. FIG. 3 is a side view showing the plug connector partially in section. FIG. 4 is a perspective view of an embodiment of a receptacle connector that pairs with the plug connector. FIG. 5 is a sectional view of the receptacle connector taken along line v-v in FIG. 4. FIG. 6 is a sectional view of the receptacle connector taken along line VI--VI in FIG. 4. FIG. 7 is a vertical cross-sectional view of the plug connector and the receptacle connector in a fitted connection state. FIG. 8 is a perspective view of a plug connector 21 according to another embodiment of the present invention. FIG. 9 is a partially sectional side view of the plug connector shown in FIG. 8; FIG. 1O is a schematic plan view of the plaque connector shown in FIGS. 2 and 3 during the molding process. FIG. 11 is a side view showing the forming process in partial section. 10...Plug connector 11...Terminal 12...
・Support body 13... Column part 14... Base plate part 18... Contact part 19... Leg part 19°... End part 19°'... Bent part Fig. n Fig. n Fig. Familiar Fig. Fig.

Claims (5)

[Claims] (1) An electrical circuit shorting connector in which a conductive terminal having a contact portion and a leg portion and an insulating support are integrated by insert molding, wherein the contact portion of the pair of terminals has an outer surface thereof The terminals are exposed on opposite sides of the support and are buried in the opposite sides and extend upwardly, and the leg portions of the pair of terminals are bent outward in a symmetrical manner so that the ends of the leg portions are bent outwardly in a symmetrical manner. The short-circuit connector is characterized in that the short-circuit connector extends outward from a side opposite to the lower end of the support. (2) An electric circuit short-circuit connector in which a conductive terminal having a contact portion and a leg portion and an insulating support are integrated by insert molding, wherein the contact portion of the pair of terminals has its outer surface The leg portions of the pair of terminals are exposed on opposite side surfaces of the support body and extend upwardly by being buried in the opposite side portions thereof, and the leg portions of the pair of terminals are bent vertically downward through symmetrical outwardly bent portions. The short circuit connector is characterized in that it extends in the direction. (3) The short-circuiting connector according to claim 1 or 2, wherein the support body is composed of a columnar part and a baseplate-shaped part that is wider than the cross section of the columnar part, and the contact part is located in the columnar part, and the leg part penetrates the base plate part. (4) The shorting connector according to claim 1, wherein the lower surface of the end of the leg portion and the lower surface of the support are located on substantially the same plane. (5) The short-circuit connector according to claim 1 or 2, wherein the outer surface of the contact portion is substantially the outer surface of the support, and the upper end surface of the contact portion is substantially the upper end surface of the support. The short circuit connector is located on the same plane as the short circuit connector.