JPS6230788Y2 - - Google Patents

Description

[Detailed description of the invention] (1) Technical field of the invention The present invention relates to a connector for electrically connecting electronic equipment, etc., and particularly relates to an improvement of a connector that facilitates grounding.

(2) Background of the Technology In recent years, with the development of electrical and electronic equipment, connectors have been widely used for electrical connections between electrical circuits and devices. As their usage increases, sophistication of contact mechanism components is required, and improvements in the level and stability of contact resistance, insulation, etc. are becoming important in order to ensure connection reliability. Furthermore, because they are used in large quantities, they are required to have a simple structure and be convenient to use.

(3) Prior art and problems The conventional method will be explained below with reference to FIGS. 1 and 2. FIG. 1 is an explanatory diagram showing an example of connecting an electronic device by a conventional method, FIG. 2 is a perspective view showing the connector structure of FIG. 1, and FIG. 3 is a perspective view showing a connected state of the connector of FIG. 1. . In the figure, 1 and 2 are devices,
1' and 2' are the housing, 1a and 2a are ground, 3 and 8 are device side connectors, 3' and 4' are metal plates, 4 and 9 are cable side connectors, 5 is a relay wire, 6 is a crimp terminal,
7 is the cable, 10 is the screw hole, 11 is the case, 1
2 is a core wire, 13 is a coating, 14 is a shield wire, 1
5 and 16 are screws, 17 is a cable inlet, and 18 is a contact terminal. In FIG. 1, device side connectors 3 and 8 are attached to the devices 1 and 2, and cable side connectors 4 and 9 are attached to both ends of the cable 7 and are fitted with the device side connectors 3 and 8. , electrical signals can be transmitted between the two. However, electrical signals may be erroneously transmitted due to various noises, causing malfunctions. To prevent this, the shield wire 14 in the cable 7 is connected to one end of the relay wire 5 in the connectors 4 and 9, and the
The other end of the relay wire 5 is connected with a crimp terminal 6 to the metal casings 1' and 2', which are grounded to the ground 1a and 2a.

A conventional method of earth connection will be explained with reference to FIG.

A metal plate 3' is attached to the device side connector 3 on the side that contacts the housing 1', and a metal plate 4' is attached to the cable side connector 4. A plurality of core wires 12 in the cable 7 are connected to the cable side connector 4
The relay wires 5 are connected to the conductive shield wires 14 inside the sheath 13 of the cable 7 by soldering or the like. and relay line 5
is led out of the case 11 from an inlet 17 of the case 11 indicated by a two-dot chain line, and a crimp terminal 6 is attached to the other end of the relay wire 5. This cable side connector 4 is a male terminal connector, and the main body is an insulating resin molded member, in which a contact terminal 18 is embedded, one end is connected to the core wire 12 of the cable, and the other end is connected to the device. In order to be inserted into the side connector, it protrudes from the main body portion of the connector 4 (not shown), and this protruding portion is accommodated in the internally hollow cable side connector extension portion as shown in the figure. The device-side connector and the cable-side connector are connected by fitting the device-side connector 3, which is a female terminal connector, into the cable-side connector extension, and inserting the tip of the contact terminal 18 into the device-side connector. is slid from the position shown in the figure to the end of the cable-side connector extension, and stops at a locking part (not shown) at the end, and this metal plate 4' is in surface contact with the metal plate 3' on the device-side connector side, and screw 15
They are fixedly attached to each other in the housing 1', and this connection is protected by a case 11. The relay wire 5 is connected to the screw hole 10 of the housing 1' by connecting the crimp terminal 6 at the tip with the screw 16.
Connected by tightening. These connections are the same for the connector connections on the device 2 side. With such a configuration, noise generated from devices 1 and 2,
Noise from the air acting on the cable 7 is grounded to the housings 1', 2' of the devices 1, 2 by the crimp terminals 6 of the trunk line 5, so that it does not affect the electrical circuits of the devices 1, 2.

However, in the above method, as shown in FIG. 1
The disadvantage is that it must be fixed at 6.
Further, since the trunk line 5 branches from the cable inlet 17, there is a disadvantage that the appearance is not desirable.

(4) Purpose of the invention The purpose of the present invention is to solve the above-mentioned drawbacks, and is to provide a simple connector that allows easy grounding.

(5) Structure of the invention The invention consists of a device-side connector, a metal mounting plate for attaching the connector to the device-side case, a cable-side connector, and a metal mounting plate used for fixing the connector when mating and coupling the connector to the device-side connector. It becomes more,
The contact terminal embedded and held in the cable side connector has a structure that has an end to which the cable core wire is connected and the other end to be inserted into the device side connector. The metal terminals to which the shielded wires are connected via relay wires are fixed, and the device-side connector and cable-side connector that are mated together are fixed to the device-side metal case with both metal mounting plates via screws. This connector is characterized by: By doing so, you can achieve your purpose.

(6) Embodiment of the invention An embodiment of the invention will be described above with reference to FIG. 4. FIG. 4 is a perspective view showing an embodiment of the present invention. In the figure, 19 indicates a metal terminal, and 20 indicates a relay wire. Further, the same parts as in FIGS. 1 to 3 are indicated by the same reference numerals.

In FIG. 4, a metal terminal 19 is fixed to a metal plate 4' attached to the cable side connector 4. A relay wire 20 is connected to the shield wire 14 of the cable 7 by soldering or the like, and the other end of the relay wire 20 is connected to a metal terminal 19 by soldering or the like.
The other configuration is the same as that shown in FIG. is trunk line 2
0. Grounding can be achieved by surface contact between the metal plate 4' and the metal plate 3' of the device side connector 3 via the metal terminal 19, and further surface contact between the metal plate 3' and the housing 1'.

(7) Effects of the invention As explained above, according to the invention, there is no need to draw out the relay wire from the cable entry port of the connector case and screw the crimp terminal to the housing, as in the conventional method. All you have to do is solder the relay wire to the metal terminal, so it has a clean appearance.
Further, there is an effect that there is no need to attach or detach crimp terminals when attaching or detaching the connector. Furthermore, there is an effect that a lead-out relay wire, a crimp terminal, a crimp terminal mounting screw hole on the device side, and a mounting screw are not required.

[Brief explanation of the drawing]

FIG. 1 is an explanatory diagram showing an example of connecting electronic devices by a conventional method. 2 is a perspective view showing the connector structure of FIG. 1, FIG. 3 is a perspective view showing a connected state of the connector shown in FIG. 1, and FIG. 4 is a perspective view showing an embodiment of the present invention. In the figure, 1 and 2 are devices;
1' and 2' are the housing, 3 and 8 are the device example connectors,
3' and 4' are metal plates, 4 and 9 are cable side connectors, 5 and 20 are relay wires, 6 is a crimp terminal, 7 is a cable, 10 is a screw hole, 14 is a shield wire, 15,
16 is a screw, 17 is a cable inlet, 18 is a contact terminal, and 19 is a metal terminal.

Claims (1)

[Scope of utility model registration request] It consists of a device side connector 3, a metal mounting plate 3' for attaching the connector to the device side case, a cable side connector 4, and a metal mounting plate 4' used for fixing when fitting and coupling the connector to the device side connector, The contact terminal 18 embedded and held in the cable connector 4 has a structure in which it has an end to which the cable core wire is connected and the other end to be inserted into the device connector. A metal terminal 19 to which the shield wire of the cable is connected via the relay wire 20 is fixed to the
A connector characterized in that the device-side connector and the cable-side connector that are fitted together are fixed to the device-side metal case together with metal mounting plates 3' and 4' via screws.