JPS5917089Y2 - spring terminal - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improved structure of a spring terminal incorporated into an insulator such as a relay socket.

As a conventional example of this type, the present applicant proposes “Utility Model Publication No. 53-19”
No. 980 "Spring Terminal" is available.

As shown in FIG. 1, this spring terminal consists of a spring 1 having a structure in which two spring plates are stacked one on top of the other, with an upper end forming a spring portion 2 and the other end forming a terminal portion 3.

Further, a cut-and-raised portion 4 is formed in each spring member between the spring portion 2 and the terminal portion 3.

As shown in FIG. 2, this spring terminal has a spring portion 2 located within a housing hole 6 of an insulator 5 which is a relay socket.
The cut-and-raised part 4 is assembled so as to come into contact with the lower surface of the insulator stopper 7.

In the conventional case, the spring terminal was installed in the terminal part 3 with respect to the housing hole 6.
However, in this case, the housing hole 6 must be completely open at the top, and when a contact terminal (not shown) such as a relay is inserted into the spring part 2, it may be misaligned, etc. The contact terminal is connected to one side piece of the spring portion 2 and the accommodation hole 6.
There was a drawback that the spring part 2 was inserted between the inner walls or bent.

Furthermore, due to wiring considerations, the terminal section 3 is often opened in the direction of the arrow as shown by the dotted line in Fig. 2, and each spring plate is used independently. Since the spring terminal is opened (cut and raised) in the opposite direction to the opening direction of the terminal part 3, there is a risk that the cut and raised part 4 will be displaced inward when the terminal section is opened, and the spring terminal will fall off from the insulator 5.

For this reason, in the past, the terminal part 3 was cut and raised to prevent the terminal part 4 from narrowing.
Machining such as punching was added to the product, leading to an increase in product cost.

The purpose of the present invention is to solve the above-mentioned conventional drawbacks, and the purpose is to form a spring material by overlapping two pieces of spring material, and one end of which has a spring portion for connection with a contact terminal. A spring in which the other end is open to form a terminal part that can be wired, and a cut-out part is provided in each of the two spring materials between the spring part and the terminal part, and the cut-out part In a spring terminal in which the spring portion is retained in a housing hole of an insulator, the cut and raised portion is formed to open in the same direction as the opening direction of the terminal portion, and the spring is opened upwardly. The spring portion is inserted into a housing hole having a flange portion from the spring portion, and when the spring portion is inserted into the housing hole, the cut and raised portion is also located within the housing hole, and the cut and raised end portion is inserted into the housing hole. It is possible to achieve a fit in a spring terminal characterized by a structure in which the spring terminal contacts an insulator stopper located below the hole.

An embodiment of the present invention will be described below with reference to FIGS. 3 to 5, in which the same reference numerals refer to the same parts as in the conventional example described above.

This spring terminal differs from the conventional spring terminal shown in FIG. 1 in that the cut and raised portion 40 opens in the same direction as the opening direction of the terminal portion 3, as shown in FIG. 3, and the other configurations are the same.

4A is a diagram showing a state in which the spring terminal of FIG. 3 is assembled into the insulator 5, and FIG. 5 is a plan view of the accommodation hole viewed from below.

The accommodation hole 60 of the insulator 5 has a flange 61 integrally formed at the upper opening, and a contact terminal such as a relay is inserted into the spring part 2 through the opening 62.

Further, the lower opening of the accommodation hole 60 is open as shown in FIG. 5, and an insulator stopper 70 is integrally formed at the edge thereof.

As shown in FIG.
Insert it further until the cut and raised portion 40 exceeds the insulator stopper 70 to obtain the state shown in the figure.

In the state shown in FIG. 4, in the spring terminal, the cut and raised portion 40 is located on the surface of the insulator stopper 70, and the center portion of the spring portion 60 faces the opening 62.

In this spring terminal, when the terminal part 3 is opened in the direction of the arrow as shown by the dotted line, the cut-and-raised part 40 opens in the terminal opening direction, so it is opened in the same direction, and the cut-and-raised part 40 is opened in the same direction as the conventional cut and raised part. 4. No narrowing occurs.

Further, since the contact terminal is guided by the flange portion 61 and inserted into the spring portion 2 reliably, erroneous contact as in the conventional case does not occur.

According to the present invention described above, it is possible to achieve stable fixation of the spring terminal with an extremely simple structure, and reliable contact can be achieved at the same time, resulting in remarkable practical effects.

[Brief explanation of the drawing]

Figures 1 and 2 are diagrams for explaining conventional spring terminals,
Fig. 3 is a perspective view of the spring terminal according to the present invention, and Fig. 4 is a perspective view of the spring terminal according to the present invention.
FIG. 5 is a side view showing a state in which the spring terminal shown in the figure is assembled into an insulator, and FIG. [Explanation of symbols], 1... Spring, 2...
Spring part, 3...Terminal part, 4, 40...
Cut and raise, 5... Insulator, 6.60...
Accommodation hole, 7, 70...Insulator stopper.

Claims (1)

[Scope of utility model registration request] It is formed by overlapping two pieces of spring material, one end of which forms a spring part for connection with a contact terminal, and the other end of which forms a terminal part which can be wired by itself, and the spring part and a spring provided on each of the two spring members cut and bent between the spring terminal and the terminal portion, wherein the spring portion is retained in the accommodation hole of the insulator due to the cut and bend; is formed to open in the same direction as the opening direction of the terminal portion, and the spring is inserted from the spring portion into a housing hole having a flange portion at an upper opening, and the spring portion is inserted into the housing hole. 1. A spring terminal according to claim 1, wherein when the spring terminal is opened, the cut and raised portion is also located within the housing hole, and the cut and raised end portion comes into contact with an insulator stopper below the housing type.