JPS6021894Y2 - thin jack - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a thin jack that can be automatically soldered to a printed circuit board or the like.

Thin jacks that can be mounted on electronic circuits are already well known, but with the miniaturization of electronic circuits, they have become thinner and thinner year by year.
There is a tendency to become smaller.

As shown in Fig. 1, the conventional thin jack has a structure in which the connecting terminals 2, . It meets the demand for smaller and thinner jacks.

However, in a structure in which the connection terminals 2 protrude from the bottom 1 of the jack body, the connection terminals 2
It is necessary to provide a notch 3 for guiding the ... from the bottom 1 of the jack body to the outside, so when the jack is mounted on an electronic circuit by automatic soldering, the flux etc. used for this soldering is Due to capillary action, it rises up through the connection terminals 2... and invades the electrical connections inside the jack body, causing serious problems such as poor conduction of the jack.

For this reason, it is currently extremely difficult to mount thin jacks on circuits by automatic soldering.

The present invention was devised in view of these circumstances, and aims to provide a thin jack that enables automatic soldering, which has been considered difficult in the past.

Hereinafter, one embodiment of the present invention will be described with reference to the accompanying drawings.

FIG. 2 is a perspective view of an embodiment of the present invention, with 41 to 43
is a connection terminal, 5 is a jack body, 6 is an insertion port for inserting and removing a plug (not shown), and these connection terminals 41 to 43
When a plug (not shown) is inserted into the plug insertion opening 6, they are electrically connected to each other, and the circuits on the plug side and the jack side are electrically connected.

7 is a cover plate placed on the top surface of the jack body 5;
This prevents dust and the like from entering the conductive connection portion within the jack body 5.

In the case of the illustrated example, three connection terminals are provided, and the first connection terminal 41 is led out from a notch provided in the front of the cover plate 7, and is provided at the upper part of the side surface of the jack body 5. The stepped portion 8 hangs down so as to maintain a non-contact state with the side surface of the jack body.

The second and third connection terminals 42.43 are led out through a cutout window 9.10 provided at the rear of the jack body, and maintained in a non-contact state with the lower part of the jack body 5 via a spacer 11.12. It is hanging down like this.

The reason why the connecting terminals 41 to 43 are prevented from coming into contact with the side surfaces of the jack body 5 is to prevent flux from rising into the gap between the connecting terminals and the side surfaces due to capillary action. It is.

Additionally, the portions of the jack body located below the portions that are held in a non-contact state with the connection terminals 41, 42 and 43, including the bottom portion 10 of the jack body, are holes where flux etc. may enter. , there are no cutout windows at all, and the building is kept in a so-called sealed state.

FIG. 4 is an exploded perspective view of the thin jack of the present invention.

As shown in this figure, the embodiment of the thin jack of the present invention is
After housing the three connection terminals 41, 42, and 43 in the jack body 5 to form an electrical connection, the cover plate 7 is placed over the jack body 5, and the conductive metal sleeve 61 is inserted into the front part of the jack body 5. The hollow hole 46 of the first connecting terminal 41 is inserted into the insertion tube 62 provided in the jack body 5 , and the hollow hole 46 of the first connecting terminal 41 is inserted into the part of the conductive metal sleeve 61 that protrudes into the jack body 5 . and the second and third connection terminals 42.4
3 is a cutout window 9 provided in the rear part of the jack body 5
, 10, respectively, and stored in the jack body 5.

When a plug (not shown) is inserted into the conductive metal sleeve 61 forming a plug insertion opening, the first connection terminal 41 and the second and third connection terminals 42 and 43 are electrically connected to each other. It is something that will be done.

The cover plate 7 has three mounting holes 71 to 71 provided on the cover plate 7.
73 are columnar projections 7 provided on the jack body 5, respectively.
1' to 73', respectively, and the engaging claw 75 is fitted into an engaging window 75' provided in the stepped portion 8 of the jack body 5, and is placed on the jack body 5.

5 and 6 are a front view, a side view, and a rear view of the thin jack shown in FIGS. 2 and 3, respectively, and as is clear from these figures, the thin jack of the present invention The connection terminal of the jack is made to hang down from above the jack body, and the length of the jack connection is relatively longer than that of the conventional type shown in Figure 1. The connecting terminals 41 to 43 extending downward are provided with a stepped portion 8 or an insulating spacer 11, 12 midway to maintain a non-contact state with the side surface of the jack body.

However, as a means for maintaining non-contact between the connection terminals and the side surface of the jack body, various other means can be adopted in addition to those shown in the embodiment diagrams. Alternatively, a stepped portion may be provided on all the side surfaces from which the connecting terminal is led out.

As is clear from the above description, the present invention has a jack connecting terminal hanging from a proper position above the jack body so as to be able to maintain a non-contact state with the side surface of the jack body midway, and including the bottom part of the jack body. Since the entire area below the part on the side of the jack body that is not in contact with the connection terminal is sealed, there is almost no possibility that flux, etc. will cross the connection terminal and infiltrate the conductive contact part of the jack body. .

Therefore, there are beneficial effects such as enabling automatic soldering of thin jacks, which has been difficult in the past.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing the bottom of a conventional thin flux, and FIGS. 2 and 3 are perspective views showing an embodiment of the present invention, focusing on the top and bottom, respectively. Figure 4 is an exploded perspective view of the embodiment shown in Figure 2, Figure 5 is a front view of the embodiment shown in Figure 2, Figure 6 is a side view thereof, and Figure 7 is its side view. FIG. Explanation of symbols, 5... Jack body, 7...
・Bottom part of the jack body, 2.41.42.43...
...Connection terminal, 10...Bottom.

Claims (1)

[Scope of utility model registration request] The connection terminal of the jack hangs down from above the jack body along the side surface of the jack body while maintaining a non-contact state with the side surface of the jack body, and includes the bottom of the jack body, and is connected to the connection terminal on the side surface of the jack body. A thin jack characterized in that the entire portion below the non-contact portion is configured in a sealed state.