JPS5854860Y2 - Brush lead terminal - Google Patents

Description

[Detailed explanation of the idea] ・This proposal relates to brush lead wire terminals.

Conventionally, this type of terminal 1 was made by press-molding a metal plate into a dish shape, as shown in Fig. 1, and one end of the terminal was passed through a hole 2 in the center of the lead wire 3 fixed to a brush B, and then soldered 4. ing.

However, since the spring 5 is soldered in a compressed state, it is necessary to round up the tip of the lead wire before soldering to prevent it from coming off due to the restoring force of the coil spring 5, which is extremely inefficient. Met.

In view of the above points, the present invention aims to provide a lead wire terminal that does not require soldering and has good workability.

As shown in Fig. 2, the lead wire terminal of the present invention has a plate-shaped terminal body 1a and a lead wire passage hole 2 that communicates with the hole in the terminal body 1a. The cylindrical portion 1b which clamps and integrally connects the lead wire 3 passed therethrough is formed by compacting conductive powder such as copper Cu, copper Cu + tin Sn, copper Cu ten lead Pb, etc. It is composed of

Since the lead wire terminal 1 of the present invention has the above-mentioned configuration, hold the end of the lead wire passed through the hole 2 with one hand, hold the coil spring 5 in a compressed state, and use the jig held in the other hand to make a tube. The terminal 1 can be integrally bonded and fixed to the lead wire 3 by compressing the portion 1b from the outer peripheral surface.

Therefore, there is no need to curl the lead wire 3 to prevent it from coming out during this fixing operation, and the fixing operation is extremely simple and does not require any skill.

Also, since the cylindrical portion 1b is compressed and holds the lead wire 3,
The terminal 1 and the node wire 3 are strongly and integrally connected without soldering, and the two are in close contact with each other, so that good electrical conductivity can be obtained between the two.

Further, since the conductive powder is formed by compacting, it is possible to easily manufacture a terminal consisting of a terminal body and a cylindrical portion.

Although FIG. 2 shows the terminal 1 attached to the node wire 3 with the cylindrical portion 1b facing downward, it may be attached with the terminal 1 facing upward as shown in FIG.

Further, the hole wall at the end of the hole 2 on the lead wire insertion side may be formed into a trumpet shape to facilitate insertion of the lead wire 3.

In FIG. 4, a notch 6 having a width larger than the diameter of the lead wire is provided from the periphery of the terminal body 1a to the hole 2, and the lead wire 3 can be inserted into the hole 2 along this notch 6.

In this case as well, if the entrances of the notches 6 are cut out in arcuate shapes 6a and 6b, the lead wire can be easily inserted.

[Brief explanation of drawings]

Figure 1 is a vertical cross-sectional view of a conventional terminal fixed to a lead wire, Figure 2 is the same view of the proposed terminal, Figure 3 is a vertical cross-sectional view of a modified example, and Figure 4 is a plan view of another modified example. It is a diagram. 1 is a terminal, 2 is a hole, 3 is a lead wire, 4 is a node, 5 is a spring, and 6 is a notch.

Claims (1)

[Scope of utility model registration request] A cylinder having a plate-shaped terminal body and a lead wire passage hole communicating with the hole of the terminal body, and which is compressed from the outer circumferential surface to sandwich and integrally connect the lead wire passed through the hole. A brush lead terminal made by compacting conductive powder.