JPH082928Y2 - Airtight terminal - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Technical Field of the Invention) The present invention relates to an airtight terminal, and more particularly to an airtight terminal capable of hermetically enclosing circuit components and having various mounting structures.

(Technical Background of the Invention and Prior Art) FIG. 6 is a cross-sectional view of a conventional airtight terminal, and FIG. 7 is a cross-sectional view of another conventional airtight terminal. Forms an airtight space 2 by the box-shaped airtight terminal main body 1 and a side surface of the airtight terminal main body 1 (6th
Or a bottom surface (FIG. 7) is provided with a lead terminal insertion hole 4 for inserting the lead terminal 3, and the lead terminal 3 is inserted through the lead terminal insertion hole 4, and an insulating material 5 such as glass or ceramic is used. It is a sealed one.

In using such an airtight terminal, a circuit component (not shown) is loaded in the airtight space 2 and
The circuit component is electrically connected to the lead terminal 3 exposed in the airtight space 2, and a cover (not shown) is covered and pressure-bonded to hermetically seal the circuit component in the airtight space 2. .

The circuit components thus hermetically sealed are mounted on boards of various electric devices. In this case, the lead terminals 3 of the airtight terminals are laid out (FP type, (See Fig. 6) or vertical projection (DIP type, see Fig. 7).

For the FP type, it is suitable for surface mounting by directly attaching the lead terminals to the board surface, and for the DIP type, a through hole is provided on the board, the lead terminal is inserted into this through hole, and then through hole mounting Suitable for

As described above, the structure of the airtight terminal is different depending on the form of mounting the airtightly sealed circuit component on the substrate or the like, and the airtight terminal has to be manufactured separately, which may increase the cost.

(Purpose of the Invention) The present invention has been made in view of the above-mentioned points, and it is possible to easily form an airtight terminal for surface mounting, and by using a previous stage of the airtight terminal,
It is intended to provide an airtight terminal that can be used for P and FP dipes.

(Outline of the Invention) In order to achieve the above object, the airtight terminal according to the present invention is
In a box-shaped airtight terminal body, in an airtight terminal in which a lead terminal penetrating to the outside and an airtight space formed by the airtight terminal body is sealed with an insulating material, an inclined surface is formed at a connecting portion between a bottom surface and a side surface of the airtight terminal body. A lead terminal insertion hole is formed on this slope, the lead terminal is sealed in the lead terminal insertion hole with an insulating material, and the external protruding portion of the lead terminal is bent inward to form an airtight terminal body. It is characterized in that the bottom part is sealed with an insulating material.

According to the present invention, since the lead terminals are projected obliquely from the airtight space, the FP type can be obtained by bending the protruding portion horizontally, and the DIP type can be obtained by bending the protruding portion vertically. have. That is, there is an advantage that one airtight terminal can be an airtight terminal for surface mounting or an airtight terminal for through-hole mounting.

(Embodiment) FIG. 1 is a sectional view of an embodiment of the present invention, and FIG. 2 is a partial perspective view of the airtight terminal body 1 of the above embodiment.

As is clear from this figure, the airtight terminal according to the present invention has a lead terminal 3 penetrating an airtight space 2 formed by a box-shaped airtight terminal body 1. The lead terminal 3 is the airtight terminal body 1 described above. It has a structure in which a lead terminal insertion hole 4 formed in the above is sealed with an insulating material 5.

However, in the airtight terminal according to the present invention, the connecting portion between the bottom surface and the side surface of the airtight terminal body 1 has a structure forming a slope, and the slope 6 is provided with the lead terminal insertion hole 4. Therefore, by sealing the lead terminal 3 in the lead terminal insertion hole 4 in the direction perpendicular to the inclined surface 6, the external protruding portion 31 of the lead terminal 3 with respect to the direction perpendicular to the bottom surface (airtight space bottom surface) 11 of the airtight terminal body. Can be an airtight terminal inclined toward the outside.

FIG. 3 is a partial perspective view of another embodiment of the present invention.
In this embodiment, a slope 6 is formed at the corner of the box-shaped airtight terminal body 1, and a lead terminal insertion hole 4 is formed in this slope. In this case as well, the lead terminals 3 project in the oblique direction as in the first embodiment.

FIG. 5 (a) shows a method of using the hermetic terminal of the present invention at the previous stage of manufacturing the hermetic terminal, and is a partial cross-sectional view of an example of the FP type. The projecting portion 31 of the lead terminal 3 that obliquely projects is bent horizontally on the bottom surface 11 of the airtight terminal body 1 so that it can be surface-mounted on the substrate.

FIG. 5 (b) shows another method of using the hermetic terminal of the present invention at the previous stage of manufacturing the hermetic terminal, and is a partial sectional view of a DIP type example, which is clear from this figure. As described above, the projecting portion 31 of the lead terminal 3 which is obliquely projected is bent perpendicularly to the bottom surface 11 of the airtight terminal main body 1 so that the through hole mounting can be performed on the substrate.

FIG. 5 (c) shows an embodiment of the airtight terminal of the present invention, which is different from the above-described application example, and is for surface mounting, and the projecting portion 31 of the lead wire 3 which is obliquely projected is not provided. Bending and adhering to the bottom of the airtight terminal body 1 with the insulating material 5 has an advantage that the occupied area is smaller than that of the surface mounting method of FIG. 5 (a).

(Effect of the Invention) As described above, according to the airtight terminal of the present invention, the lead terminal is projected in the oblique direction by utilizing the slope, so that the airtight terminal for surface mounting can be easily obtained. At the same time, there is an advantage that it can be used for DIP and FP dipes by using the airtight terminal in the previous stage.

[Brief description of drawings]

1 is a sectional view of an embodiment of the present invention, FIG. 2 is a partial perspective view of the above embodiment, FIG. 3 is a partial perspective view of another embodiment, and FIG. 4 is a hermetic terminal of the present invention. FIG. 5 is a sectional view of an airtight terminal of the present invention, FIG. 6 is a sectional view of a conventional airtight terminal, and FIG. 7 is a sectional view of a conventional airtight terminal. . 1 ... Airtight terminal body, 2 ... Airtight space, 3 ... Lead terminal, 31 ... Projection part, 4 ... Lead terminal insertion hole, 5 ...
Insulating material.

Claims (1)

[Scope of utility model registration request] 1. A box-shaped airtight terminal body, wherein a lead terminal penetrating the airtight space formed by the airtight terminal body and the outside is sealed with an insulating material, wherein a bottom surface and a side surface of the airtight terminal body. Forming a slanted surface on the connecting part, and forming a lead terminal insertion hole in this slanted surface, sealing the lead terminal in the lead terminal insertion hole with an insulating material, and bending the outer protruding part of the lead terminal inward. An airtight terminal characterized by being sealed with an insulating material on the bottom of a bent airtight terminal body.