JPH06275335A - Ac jack - Google Patents

Abstract

PURPOSE:To provide an AC jack in which an AC jack main body closely sticks to a printed wiring board with no gap. CONSTITUTION:A terminal 11a extracted from an AC jack main body 11 is fitted to a printed wiring board 4. The AC jack main body 11 on the extraction face of the terminal 11a is provided with a circular side wall 12 formed on the outer periphery to surround the terminal 11a and closely stuck to the printed wiring board 4 in an AC jack. The terminal 11a is sealed by the circular side wall 12, an electrolyte is prevented from infiltrating into the gap between the jack main body 11 and the printed wiring board 4, and the occurrence of a fire can prevented.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an AC jack mounted on a printed wiring board or the like.

[0002]

2. Description of the Related Art In recent years, when an AC jack is mounted on a printed wiring board (hereinafter referred to as PWB), flux during soldering enters into the AC jack through a gap between a terminal and a case by a capillary phenomenon. In order to prevent
The bottom part is designed so as not to come into close contact with the surface.

An example of the above-mentioned conventional AC jack will be described below with reference to the drawings.

FIG. 5 is a perspective view showing a conventional AC jack mounted on a PWB. In FIG. 5, 1 is an AC jack body, 1a is a terminal, and 1b is a PWB.
It is a gap with.

[0005]

However, in the above-mentioned conventional AC jack, the electrolyte leaked from the battery is likely to collect in the gap between the AC jack body and the PWB, and short-circuits between the terminals when connected to the AC power supply. There was a problem that there was a risk of fire.

In view of the above conventional problems, the present invention is a PW.
The purpose of the present invention is to provide an AC jack in which B and the AC jack body are in close contact with each other without a gap.

[0007]

In order to solve the above problems, the AC jack of the present invention is provided with an annular side wall which is formed on the outer periphery of the AC jack so as to surround the terminals of the AC jack and which is in close contact with the PWB. The terminal of is sealed.

[0008]

According to the present invention, since the electrolyte leaked from the battery is prevented from invading the terminal portion of the AC jack due to the above-mentioned structure, the danger of fire due to short circuit can be prevented.

[0009]

Embodiments of the AC jack of the present invention will be described in detail below with reference to FIGS.

FIG. 1 shows A in the first embodiment of the present invention.
It is a perspective view of a C jack. In FIG. 1, 11 is AC
Jack body, 11a is a sheet metal terminal, 12 is a resin-molded annular side wall, 12a is a locking claw, 13 is a sealing material, 4 is P
It is WB.

FIG. 2 is a sectional view showing a state where the annular side wall is locked to the AC jack body, and FIG. 3 is a plan view of the annular side wall.

The operation of the AC jack having the above structure will be described below.

First, the annular side wall 12 is connected to the AC jack body 11
To the AC hole in the PWB 4
Insert the terminal 11a of the jack and solder it. Next, the outer periphery of the annular side wall 12 is sealed with the sealing material 13.

As described above, according to the present embodiment, the terminal 11a of the AC jack body 11 is in a sealed state on the PWB mounting surface (AC jack mounting surface), and the electrolytic solution can be prevented from easily entering. .

Next, FIG. 4 shows a second embodiment. Figure 4
As shown in (a), the groove 12b may be provided on the surface of the annular side wall 12 that abuts the PWB 4, and the annular rubber packing 14 may be inserted to seal the PWB 4 and the AC jack main body 11. Further, as shown in FIGS. 4B and 4C, triangular ribs 15 are provided on the surface of the annular side wall 12 that contacts the PWB 4, and the ribs 15 are pressed so as to be crushed when assembled.
The PWB 4 and the AC jack body 11 can also be sealed.

The annular side wall of this embodiment may be formed integrally with the AC jack body, and the annular side wall is formed of a resin molding having high elasticity so that the PWB and the AC jack body are sealed. Good.

[0017]

As described above, according to the present invention, by sealing the terminals of the AC jack body with the annular side wall, it is possible to prevent the risk of fire occurrence due to the invasion of the electrolytic solution and a short circuit.

[Brief description of drawings]

FIG. 1 is a perspective view of an AC jack according to a first embodiment of the present invention.

FIG. 2 is a sectional view showing a state in which the AC jack is locked.

FIG. 3 is a plan view of an annular side wall in the first embodiment of the present invention.

FIG. 4 is a PW of the annular side wall in the second embodiment of the present invention.
Sectional drawing which shows the shape of the surface which contacts B.

FIG. 5 is a perspective view of a conventional AC jack.

[Explanation of symbols]

 4 PWB 11 AC Jack Main Body 11a Terminal 12 Annular Side Wall 12b Groove 13 Sealant 14 Rubber Packing 15 Rib

Claims (5)

[Claims] 1. An AC configured so that a terminal drawn out from an AC jack body is attached to a printed wiring board.
An AC jack, wherein an annular side wall is provided around the terminal so as to surround the terminal and is in close contact with the printed wiring board. 2. The AC jack according to claim 1, wherein the annular side wall is formed separately from the AC jack body and is fitted to the AC jack body. 3. The A according to claim 1, wherein a gap between the annular side wall and the printed wiring board is fixed with a sealing material.
C Jack. 4. The AC jack according to claim 1, wherein a groove is provided on a surface of the annular side wall that abuts the printed wiring board, and an annular rubber packing is inserted. 5. The AC jack according to claim 2, wherein the annular side wall is made of a highly elastic material.