JPS6220141Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an airtight terminal for an airtight package that hermetically encapsulates circuit elements and the like.

As shown in Fig. 1, the airtight package is made by inserting a lead wire 4 into a lead wire insertion window 3 formed in a peripheral wall 2 of a frame 1 which is the main body of the airtight terminal, and sealing it airtight with an insulating material 5 such as glass. It consists of a sealed airtight terminal T, a lid C and a base B that are placed over and bonded to the airtight terminal T. The circuit element 6 is connected to the lead wires 4, 4
and is hermetically sealed in an airtight package.

The lead wire 4 of such an airtight terminal T has conventionally been linear or plate-shaped, but one lead wire 4 only supported the circuit element 6 at one point. For this reason, if the circuit element 6 is sealed in the airtight package and then exposed to severe conditions, there is a risk that the connection with the lead wire 4 may come off.

The purpose of the present invention is to provide an airtight terminal that does not have such drawbacks. Specifically, a single lead supports a circuit element at two points, thereby increasing the durability of the circuit element. This is something that we aim to improve.

Therefore, in the airtight terminal according to the present invention, the lead wire is inserted into the lead wire insertion window formed in the peripheral wall of the frame which becomes the airtight terminal body, and the lead wire is inserted into the plate in the airtight terminal sealed with an insulating material. In addition to
This lead wire is characterized in that the connecting end of the circuit element, etc. is bifurcated, so that the circuit element, etc. can be connected and supported at two points.

Hereinafter, embodiments of the present invention will be described based on the drawings.

FIG. 2 is a perspective view of an embodiment of the airtight terminal according to the present invention, and in the figure, the same reference numerals as in FIG. 1 indicate the same elements.

This airtight terminal T has a plate-shaped lead wire 4 inserted through a lead wire insertion window 3 provided in the peripheral wall 2 of the frame 1.
It is sealed with an insulating material 5.

As is clear from FIGS. 2 and 3, the lead wire 4 has a plate-like shape, and the tip connected to a circuit element etc. is partially cut out to form bifurcated branch ends 4a and 4b.

Since the lead wire 4 as described above is sealed to the lead wire insertion window 3 with the insulating material 5, the lead wire insertion window 3 is sealed so that the plate-shaped lead wire 4 can be inserted.
has become wider than before.

This lead wire 4 is inserted into the lead wire insertion window 3 using an insulating material 5.
In order to seal it, it is preferable to make a part of the bifurcated branch part 40 of the lead wire 4 cover a part of the lead wire insertion window 3 (FIG. 4a) and seal it with the insulating material 5.
This is to improve the strength of the branch portion 40, that is, the strength of the airtight terminal T.

However, as shown in FIG. 4b, it goes without saying that the branch portion 40 may be made to protrude toward the airtight space (inside) and sealed.

As explained above, according to the airtight terminal according to the present invention, a plate-shaped lead wire with a bifurcated tip connected to the circuit element 6 is used as the lead wire that connects to and supports the circuit element 6. Therefore, the circuit element 6 can be supported at two points using one lead wire. Therefore, the circuit elements etc. that are hermetically sealed in the airtight package are held more stably than in the past, and there is an advantage that durability is improved. In other words, the circuit elements 6 are supported by the two branches of the lead wire, and therefore, when a vibration or the like is applied to the airtight package containing the circuit elements 6, etc., the two branches This is because vibrations are absorbed by the circuit elements 6. In addition, when the plate-shaped lead wire is not provided with a branch part, the plate-shaped lead wire has high rigidity and is not flexible against vibrations, etc., so that the force load on the connection part to the circuit element etc. is reduced. grow bigger,
There is a risk of it falling off.

[Brief explanation of drawings]

Figure 1 is an exploded perspective view of a conventional airtight package.
FIG. 2 is a perspective view of an embodiment of the airtight terminal according to the present invention, FIG. 3 is a front view of a lead wire used in the embodiment of the present invention, and FIG. 4 is a front view of the embodiment. DESCRIPTION OF SYMBOLS 1... Frame body, 2... Peripheral wall, 3... Lead wire insertion window, 4... Lead wire, 5... Insulating material, 6... Circuit element.

Claims (1)

[Scope of utility model registration request] In an airtight terminal in which a lead wire is inserted into a lead wire insertion window drilled in a peripheral wall serving as an airtight terminal body and sealed with an insulating material, the lead wire is formed into a plate shape, and the circuit element of this lead wire is An airtight terminal characterized in that the connecting tip of the terminal is bifurcated so that the circuit element or the like can be connected and supported at two points.