JPH0119837Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to a composite connector that has both a connector for connecting single wires and a coaxial connector for connecting coaxial cables.In particular, it has a coaxial connector and can be used by being directly attached to a printed circuit board. The aim is to provide a composite connector that can

<Background of the invention> Connectors used on devices are often directly attached to printed circuit boards to simplify the wiring process. Connectors that can be directly attached to printed circuit boards are limited to so-called single-wire interconnect type connectors in which each contact is housed individually in an insulating base.

On the other hand, coaxial connectors used in high-frequency circuits have the disadvantage that they cannot be directly attached to a printed circuit board because they must have a structure in which the central conductor portion is shielded by an outer conductor.

Therefore, conventionally, the single-wire connector and the coaxial connector are separated, the coaxial connector is attached to the outer wall of the case, and only the single-wire connector is attached to the printed circuit board. Therefore, when connecting devices to each other, a single-wire connector and a coaxial connector must be provided separately, and the connection and disconnection operations must be performed separately.

For example, portable VTRs are required to be made smaller. For this reason, the VTR and tuner are separated and used by connecting them to each other as necessary. This connection requires a coaxial cable connection between the tuner and the VTR body. Therefore, the conventional structure has been adopted in which the coaxial cable and other wiring are connected and disconnected using separate connectors, which has the drawback that the connection and disconnection operations are troublesome.

<Purpose of the invention> This invention aims to provide a composite connector that has both a single-wire connector and a coaxial connector as one unit, and which can be directly attached to a printed circuit board.

<Summary of the invention> In this invention, a plurality of single-wire connectors are led out from the surface of the insulating base that is to be bonded to the printed circuit board, and a fitting hole is formed on that surface to fit the coaxial connector. is attached to a printed circuit board in advance, a coaxial connector is attached, a movable cover is provided that covers the surface of the insulating base that will be joined to the mating connector, and has a hole through which the coaxial connector passes through multiple contacts. The connector is configured such that it is biased by a spring toward the surface to be connected to the mating connector.

Therefore, according to this invention, the single wire connection connector and the coaxial connector are integrated and attached to the printed circuit board, and wiring including the coaxial cable can be connected and disconnected by connecting and disconnecting one composite connector. .

<Embodiment of the invention> FIGS. 1 to 5 are diagrams illustrating an example of a male connector of the connector according to this invention. Further, FIGS. 7 to 10 are views for explaining an example of a female connector of the connector according to this invention.

In the figure, 100 indicates a male connector, and 200 indicates a female connector. Male connector 100 and female connector 2
00 differs only in the structure of the contact, and the other structures are almost similar, so the similar parts are indicated by the same reference numerals.

First, the male connector 100 will be explained. In the figure, 1 indicates an insulating base. As shown in FIG. 1, the insulating base 1 of the male connector 100 has two surfaces adjacent to each other,
In other words, it has a substantially box-like shape with an open top and one side, and a plurality of rod-shaped contacts 3 are implanted in the bottom plate 2. The rod-shaped contacts 3 constitute a single-wire connector, and are arranged in a straight line. This example shows the case where they are arranged in two rows. The rod-shaped contact 3 passes through the bottom plate 2 and is led out to the back side of the bottom plate 2. The portion led out to the back side of the bottom plate 2 is a terminal 3a, and the lead-out surface 1 of this terminal 3a
Here, a is referred to as the bonding surface to the printed circuit board.

In addition to rod-shaped contacts 3, a fitting hole 5 for a coaxial connector 4 is formed in the bottom plate 2. coaxial connector 4
As shown in FIG. 6, an external cylindrical conductor 4a and an insulator 4b installed in the hollow part of this cylindrical conductor 4a
and a center contact 4c held at the axis of the insulator 4b.

The rear end of the external cylindrical conductor 4a has a lid 4d,
The structure is such that the insulator 4b is prevented from coming off by bending the lid 4d after the insulator 4b and center contact 4c are installed inside. Further, the external cylindrical conductor 4a has a cable clamp 4e in the right angle direction, and the cable clamp 4e grips the outer conductor of the coaxial cable to mechanically connect the cable to the coaxial connector 4. The center conductor of the coaxial cable is connected to the cylindrical conductor 4a through the cable clamp 4e.
is introduced into the interior of the insulator 4b and connected to the center contact 4c through a notch formed in the insulator 4b. On the other hand, a tongue piece 4f constituting a locking means is cut and raised on the circumferential surface of the external cylindrical conductor 4a, and this tongue piece 4f forms a stepped portion 5a on the circumferential surface of the fitting hole 5 formed in the bottom plate 2. (1st
(see figure) to lock the coaxial connector 4 to the bottom plate 2. It is assumed that the coaxial connector 4 is not attached to the bottom plate 2 until the terminals 3a are soldered to the printed circuit board, as will be described later.

A lid 6 having two surfaces 6a and 6b covering these open surfaces is placed over the open surface of the upper surface facing the bottom plate 2 and the side surface adjacent to this open surface. In the lid 6, holes 7 and 8 are formed in the surface 6a that covers the upper surface of the insulating base 1, through which the rod-shaped contacts 3 and the coaxial connector 4 pass, so that the rod-shaped contacts 3 and the coaxial cable connector 4 can freely protrude. . As shown in FIG. 3, the lid 6 is biased outwardly by a spring 9, and is held in a state in which the rod-shaped contacts 3 and the coaxial connector 4 are covered by the lid 6.

The lid 6 is prevented from coming off by protrusions 11 formed on three sides.
It is carried out by. That is, the protrusion 11 is engaged with the cut groove 12 formed on the side wall of the insulating base 1, and the cut groove 1
2 supports the lid 6 so that it can be moved up and down, and also prevents the lid 6 from coming off. 13 is the projection 11 when the projection 11 is engaged with the cut groove 12.
A guide groove that guides the kerf to the kerf 12 is shown.

By providing the lid 6 in this manner, the rod-shaped contacts 3 and the coaxial cable connector 4 are located behind the lid 6 and are protected by the lid 6. Therefore, even if the conductors come into contact with each other, there will be no short circuit between the rod-shaped contacts 3 and between the rod-shaped contacts 3 and the outer cylindrical conductor 4a of the coaxial connector 4, so it is safe.

<Structure Description of Female Connector 200> The female connector 200 can have a structure as shown in FIGS. 7 to 10, for example. Similarly to the male connector 100, the female connector 200 also has an insulating base 1.
and contacts 3' housed in this insulating base 1.
and a fitting hole 5 for a coaxial cable connector formed in the insulating base 1.

The insulating base 1 of the female connector 200 is constituted by a rectangular insulating block. One surface of the insulating block is used as a joint surface with the male connector 100, and a plurality of holes 14 into which the male contacts 3 of the male connector 100 are inserted are formed in this joint surface. The back side of the male contact 3 insertion hole 14 forms a female contact storage hole 15.
A female contact 3' is housed in.

The terminal portion 3a' of the female contact 3' is bent in a direction perpendicular to the insertion/extraction direction of the connector, and is led out to one surface adjacent to the joint surface with the male connector 100. The lead-out surface of this terminal 3a is defined as the bonding surface 1a to the printed circuit board. The female contact 3' is connected to the insulating base 1
The female contact 3' is inserted from the back side into the contact storage hole 15 formed in the insulating base 1, and the female contact 3' is prevented from coming off by attaching the back cover 16 to the insulating base 1.

In this invention, a coaxial connector fitting hole 5 is formed in the insulating base 1 and the back cover 16, and a female connector 200 is formed.
After the coaxial cable connector 4' is attached to the printed circuit board, the coaxial cable connector 4' can be fitted therein.

The coaxial cable connector 4' used in the female connector 200 has an external cylindrical conductor 4 as shown in FIG.
a', an insulator 4b' housed in the hollow part of this external cylindrical conductor 4a', a rod-shaped center contact 4c' supported on the axis of this insulator 4b', and an insulator 4b'.
a lid body 4d' that prevents the insulator 4b' from coming off by bending the b' while being inserted into the hollow part of the external cylindrical conductor 4a';
It has a cable clamp 4e' and a tongue piece 4f' cut and raised on the circumferential surface of the external cylindrical conductor 4a', and by inserting this coaxial connector 4' into the fitting hole 5, the inside of the fitting hole 5 is removed. The tongue piece 4f' engages with the step formed on the wall surface,
Prevents the coaxial connector 4' from coming off. The inner diameter of the outer cylindrical conductor 4a' of the coaxial connector 4' to be attached to the female connector 200 is the same as that of the outer cylindrical conductor 4 of the mating connector.
The outer diameter of the outer cylindrical conductor 4a is selected to be slightly larger than the outer diameter of 4a', and the outer cylindrical conductor 4a is configured to fit into the inner wall of 4a'.

Male connector 100 and female connector 2 explained above
By pressing 00 with their joining surfaces facing each other, the rod-shaped contact 3 is fitted into the female contact 3',
Connect single wires to each other.

Furthermore, the outer diameter of the outer cylindrical conductor 4a of the coaxial connector 4 on the male connector 100 side is selected to be slightly smaller than the outer diameter of the outer cylindrical conductor 4a' of the coaxial connector 4' on the female connector 200 side. shaped conductor 4a
The outer circumferential wall of 4a' contacts and fits into the inner circumferential wall of 4a' to establish a connection between the outer conductors of the coaxial cable. Further, a rod-shaped center contact 4c' is fitted into the center contact 4c to connect the center conductors of the coaxial cable.

<How to attach to a printed circuit board> When attaching the male connector 100 and female connector 200 to a printed circuit board, coaxial connectors 4 and 4'
This is performed with these male connectors 100 and female connectors 200 not yet attached. That is, the terminals 3a and 3a' led out from the rod-shaped contact 3 and the female contact 3' are inserted into the fitting holes formed on the printed circuit board, and in that state, the terminals 3a and 3a' led out from the bar-shaped contact 3 and the female contact 3' are inserted into the fitting holes formed on the printed circuit board, and in this state, the terminals 3a and 3a' led out from the bar-shaped contact 3 and the female contact 3' are inserted into the fitting holes formed on the printed circuit board. Perform soldering.

After the terminals 3a and 3a' are soldered to the wiring conductors of the printed circuit board, the coaxial connectors 4 and 4' are attached to the insulating base 1 constituting the male connector 100 and the female connector 200. In this case, coaxial cables are attached to these coaxial connectors 4 and 4' in advance.

On the male connector 100 side, as shown in FIG. 3, a hole for passing the coaxial connector 4 through and a hole or notch for passing the coaxial cable are formed in the printed circuit board 17, and a hole for passing the coaxial cable through the hole 18 formed in the printed circuit board 17 is formed. Connector 4 to male connector 10
0 can be installed.

<Application example of the invention> The above male connector 100 and female connector 200
For example, as shown in FIG. 12, there is a VTR body 21,
It can be used as an electrical connection part when connecting various devices 22 added to the VTR main body 21. In other words, for example, the VTR main body 21 and the attached equipment 22
The cases are configured so that they can be connected by a coupling mechanism 23. The coupling mechanism 23 is composed of a bent piece 24 formed on the VTR main body 21, a groove 25 formed on the accessory device 22, and an engagement groove 26 extending horizontally from the upper end of the groove 25. be able to. Insert the bent piece 24 formed on the VTR main body 21 into the groove 25, and then
Join the two sides. In this state, the attached device 22
A female connector 200 attached to the VTR body 21 and a male connector 10 attached to the attached device 22 are positioned by a regulating piece 27 formed on the VTR body 21.
The 0 axes are aligned. Now, by sliding the VTR main body 21 and the accessory device 22 relative to each other, the bent piece 24 is engaged with the engagement groove 26. At this time, the male connector 100 and the female connector 200 are fitted together,
The electrical connection between the VTR main body 21 and the attached equipment 22 is completed.

<Effects of the Invention> As described above, according to this invention, the connector can be directly attached to the printed circuit board, so wiring between the connector and the printed circuit board can be omitted. Therefore, the wiring process can be simplified. Furthermore, since the coaxial connectors 4 and 4' can be attached while being attached to the printed circuit board, the connection between devices including coaxial cables can be completed at once. Furthermore, by providing the movable cover 6, the rod-shaped contacts 3 and the coaxial cable connector 4 are located behind the movable cover 6 and are protected by the cover 6. Therefore, even if the external conductors come into contact, there will be no short circuit between the bar contacts 3 and between the bar contacts 3 and the coaxial contact 4, which is safe. Therefore, it is extremely effective when used for connecting and disconnecting equipment, including the connection of high-frequency circuits, such as the relationship between a VTR body and a tuner.

[Brief explanation of the drawing]

Fig. 1 is an exploded perspective view for explaining one embodiment of a composite connector according to this invention, Fig. 2 is a front view thereof, Fig. 3 is a partially sectional side view, Fig. 4 is a bottom view, 5 is a right side view of FIG. 2, FIG. 6 is an exploded perspective view for explaining the structure of the coaxial cable connector used in the composite connector shown in FIGS. 1 to 5, and FIG. A front view for explaining a mating composite connector of the composite connector explained in FIGS. 1 to 5, FIG. 8 is a sectional view taken along the line A-A in FIG. 7, and FIG. 10 is a rear view of FIG. 7; FIG. 11 is an exploded perspective view for explaining the structure of the coaxial cable connector used in the composite connector shown in FIGS. 7 to 10; FIG. 12 is a perspective view showing an example of application of the composite connector according to this invention. 100: Male connector, 200: Female connector,
1: Insulating base, 1a: Printed circuit board bonding surface, 4,
4': coaxial cable connector, 4f: tongue piece constituting locking means, 5: fitting hole of coaxial cable connector, 5a: step portion constituting locking means.

Claims (1)

[Scope of Claim for Utility Model Registration] A. An insulating base having a surface to be joined to a mating connector and a surface to be joined to a printed circuit board, and B. Terminals accommodated in this insulating base and arranged in a straight line and connected to the printed circuit board. A plurality of contacts led out on the surface; C. A fitting hole for a coaxial connector formed through the surface of the insulating substrate to be bonded to the printed circuit board; D. Formed on the circumferential surface of the coaxial connector and the inner wall of the fitting hole. a locking means that engages with each other and prevents the coaxial connector from coming off when the coaxial connector is inserted; A composite connector comprising: a movable cover having a hole formed therein and disposed so as to be movable along the contact extension direction; and a spring biasing the movable cover toward a surface to be joined to a mating connector.