JPS6037827Y2 - Coaxial plug mounting structure - Google Patents

Description

[Detailed description of the invention] This invention has a structure that can absorb the dimensional error in installing the connectors between two locations when the electronic circuit unit with the coaxial connectors is mated to the coaxial connector on the other side. It is related to.

In order to correct the frequency characteristics of a line in an electronic communication device, several types of electronic circuit units with different characteristics must be prepared in advance and a suitable one must be selected.

In this case, the electronic circuit unit needs to be easy to attach and detach, and when connecting between the input/output and two jacks, it is necessary to absorb the mounting dimensional error between them and to connect them without any difficulty.

The coaxial connector mounting structure used in conventional electronic circuit units does not have a rotation stopper on the connector body, which causes the wiring to be twisted, and when soldering, excessive force is applied to the parts, reducing the quality of the connection points. There was a downside to it.

Furthermore, due to the structure of the coaxial plug, the mounting part is large, resulting in a poor space factor, and when connecting the coaxial plug to the electronic circuit, the wiring must be passed through the hole in the mounting bracket, making assembly difficult.

The present invention aims to eliminate the aforementioned drawbacks,
In order to achieve this purpose, a coaxial connector is attached from the front of the housing, and the connector body is prevented from rotating. Furthermore, the space factor can be improved and the connector can be made smaller.

Furthermore, when an electronic circuit unit employing the present invention is attached or detached, the stress applied to the coaxial connector can be absorbed, and the quality of the connection part can be improved.

The drawings will be explained in detail below.

FIG. 1 is a sectional view of a conventional coaxial connector mounting structure, in which a metal fitting 2 is attached to a housing 1 with screws la and lb, and a coaxial connector 3 is fixed thereto with a curved washer 6 and a mounting screw 4.

On the other hand, for the center conductor assembly of the coaxial plug, the center conductor 7a is inserted through the insulator 8, the center conductor 7b is screwed in, and the portion 7c is soldered.

This is inserted into the outer conductor, and the center conductor assembly is fixed by curling the portion 3a on the circumference.

Furthermore, the wiring 8 connected to the center conductor 7d of the coaxial plug
wire to the electronic circuit board assembly.

Note that 6 is a curved washer and 4 is a screw.

In this case, when installing the coaxial plug, the space factor is poor because the plug is inserted into the fitting from inside the housing, and the wiring is drawn out at right angles to the center conductor, making assembly difficult.

The coaxial connector body is not prevented from rotating, and if stress such as twisting is applied to the soldering part of the wiring,
There were drawbacks such as deterioration of the quality of the connection part.

FIG. 2 is a sectional view of the coaxial plug mounting structure according to the present invention.

In the figure, a stepped mounting hole is provided in the housing 11, and a female thread is provided at the portion into which the mounting screw 14 is screwed.

The flat washer 12 is placed in a predetermined position on the housing 11, the curved washer 16 is passed through the outer conductor 13 of the coaxial plug body, these are inserted into the housing 11, and the mounting screw 14 is tightened.

In this tightened state, as is clear from FIG. 2, due to the play between the coaxial connector body, the mounting screw, and the housing, and the deflection of the curved washer 16, the coaxial connector body is moved in the radial direction with respect to its axis. In contrast, it can be tilted within a predetermined angular range.

For the coaxial plug, an arrow-shaped protrusion is formed on the insulator 18 at a portion 17a of the center conductor 17, and a knurl is provided on the circumference at 17b to prevent rotation, which is press-fitted.

This is inserted into the outer conductor 13 of the coaxial plug, and the portion 13a is fixed by a known method.

FIG. 3a shows a partial sectional view of the housing 11 with a coaxial plug attached thereto, and FIG. 3a shows a plan view thereof.

Figure 4a is a plan view of the coaxial connector, and Figure 4 is a bottom view of the coaxial connector, in which the coaxial connector seat with the notch 19b is inserted into the depression 19a provided around the mounting hole in Figure 3. The structure is such that the drop-in coaxial plug body is prevented from rotating.

FIG. 5a is a plan view of the mounting screw 14, and FIG. 5a is a side view thereof.

FIG. 6a is a plan view of the curved washer 16, and FIG. 6 is a side view thereof.

FIG. 7 is a plan view of the washer 12, and FIG. 7 is a side view thereof, which are the mounting parts of the coaxial plug used in the present invention.

As described above, according to the present invention, when coaxial plugs are used for input and output, the stress applied to the plugs is alleviated when connecting between two jacks, and the quality of the wiring connection is improved. be able to.

In addition, since the plug is attached from the front, the electronic circuit can be made smaller and maintainability can be improved.

[Brief explanation of the drawing]

Figure 1 is a sectional view of a conventional coaxial connector mounting structure, Figure 2 is a sectional view of a coaxial connector mounting structure according to the present invention, Figure 3a is a sectional view of the housing, and Figure 3a is a sectional view of the housing. Plan view, Figure 4a is a plan view of the coaxial plug, Figure 4 is a bottom view of the coaxial plug, Figure 5a is a plan view of the mounting screw, Figure 5 is a side view of the mounting screw, 6
Figure a is a plan view of the curved washer, Figure 6 is a side view of the curved washer, Figure 7a is a plan view of the washer, and Figure 7 is a side view of the washer. In the figure, 11... Housing, 12...
Flat washer, 13...Outer conductor of coaxial plug body, 14
...Mounting screw, 15...Wiring, 16.
...Curved washer, 17 ... Center conductor, 18
...It is an insulator.

Claims (1)

[Scope of utility model registration request] In a coaxial connector mounting structure in which a coaxial connector is mounted perpendicularly to a housing, a rotation stopper notch provided in a coaxial connector seat of the coaxial connector is dropped into a recessed part of a mounting hole of the housing, and the The coaxial connector is fastened to the housing from the front side of the housing with a mounting screw through a flat washer and a curved washer, and in this fastened state, there is no play between the coaxial connector, the mounting screw, and the housing. A coaxial plug mounting structure characterized in that the coaxial plug is tilted within a predetermined angle range in a radial direction with respect to its axis by this play and the deflection of the curved washer.