JPH0615432Y2 - One-touch connector for current test - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a one-touch connector for an electric current test.

[Prior Art] As is well known, for example, a combination of a ring-shaped hook and a nut is used as one of the connectors used for a current test of a motor, a pole transformer, and other inspection objects. Other examples include, for example, Jpn.
An alligator clip-shaped one-touch connector as used in the "clip for electrical connection" proposed in Japanese Patent Publication is used.

The alligator clip-shaped one-touch connector will be described in detail. First, one press plate is punched,
A tooth profile is formed at both ends, then it is bent into a U-shape, and these two are combined in the shape of an alligator, and the energization test is carried out by engaging the press plates bent in the U-shape. I was trying to sandwich the conductor.

[Problems to be Solved by the Invention] According to the alligator clip-shaped one-touch connector,
It is attached by sandwiching the conductor,
There were the following inconveniences.

That is, there are various shapes of conductors to be subjected to the current-carrying test. For example, when a quadrangular conductor is sandwiched between the connectors of the alligator clips, the teeth of each U-shaped plate are quadrangular. You will come into contact with the corner. Therefore, in the case of the alligator clip connector, the mechanical contactability becomes unstable, and there is a problem that it is not possible to make good contact with a conductor having any cross-sectional shape.

Further, in the case of the above-mentioned alligator clip, since the contact area with the conductor is small, when a current is applied, the current locally concentrates and flows. Therefore, there is also a problem that the electrical resistance becomes large, the electrical conductivity becomes poor, and the inspection accuracy decreases.

The present invention has been made in view of the above problems, and an object of the present invention is to make it possible to easily and firmly attach to a conductor and to ensure good current-carrying performance.

[Means for Solving the Problems] In order to achieve the above object, the present invention has the following technical means. That is, this will be described with reference to the reference numerals in the accompanying drawings corresponding to the examples. In the one-touch connector for current test used for confirming the electrical conduction state by contacting the conductor to be tested, one contact portion And the other contact portion, wherein the one contact portion is fixed to a tip end portion of a conductive rod-shaped member that penetrates and protrudes through the other contact portion, and the outer side is provided on the conductive rod-shaped member side. A stopper having a threaded portion and an inner threaded portion that is screwed into the outer threaded portion is rotatably provided on the rear end side of the other contact portion, and The contact portion is arranged to be movable back and forth along the axial direction of the rod-shaped member with respect to the stopper, and between the other contact portion and the stopper,
A spring that presses the other contact portion toward the one contact portion side is provided, and further, one of the one contact portion and the other contact portion has a contact surface on which one frame and the other contact portion are provided. The one-touch connector for an electric current test is characterized in that an elastic contact having a plurality of blade members provided at predetermined intervals is attached between the elastic contact and the frame.

[Operation] According to the above-described configuration, according to the one-touch connector for current test configured as described above, one contact portion is brought into contact with the conductor, and the conductor is positioned so as to be sandwiched by the parallel movement of the other contact portion. After that, the other contact portion is pressed against the conductor by the spring, so that the connector can be easily and firmly attached to the conductor. According to this attachment method, the work of attaching the connector to the conductor and the work of removing it from the conductor are simple and can be performed in a short time.

In particular, since the other contact part moves in parallel with the one contact part, good mechanical contactability is maintained even if the cross section of the conductor to be tested has various shapes such as a circle and a square. Be drunk Therefore, it is not limited by the conductor to be tested.
And since the elastic contactor is attached to at least one of the contact surfaces of the one contact portion and the other contact portion,
When the conductor is sandwiched, the elastic contactor always comes into contact with the conductor by an elastic force, and there is no gap between the conductor and the elastic contactor. Further, since the contact area is large when the conductor is sandwiched by the alligator clips, it is possible to prevent the current from flowing locally in a concentrated manner, and the concentrated resistance does not occur.

[Embodiment] Next, a preferred embodiment of the one-touch connector for conducting test of the present invention will be described in detail with reference to the accompanying drawings.

Reference numeral 1 indicates one contact portion made of a good conductor such as copper, and 2 indicates the other contact portion. That is, they face each other in parallel.

A hole 9 is formed at the center of the other contact portion 2 and a copper pipe 7 is penetrated there. Then, one end 10 of the copper pipe 7 and the one contact portion 1 are connected by using silver solder or the like.

The core wire 5 of the insulation-coated electric wire 11 is passed through the copper pipe 7, and the tip 12 of the core wire 5 is also brazed with silver to the one contact portion 1.

Now, an outer screw 13 is formed on the rear outer periphery of the copper pipe 7, and a stopper 14 having an inner screw 8 is screwed onto the outer screw 13. A spring 4 is interposed between the end 15 of the stopper 14 and the rear end 16 of the other contact portion 2 so as to urge the stopper 14 and the other contact portion 2 away from each other.

By the way, in this invention, the elastic contactor 3 is attached to at least one of the contact surfaces A and B of the one contact portion 1 or the other contact portion 2. In this example, an example in which the contact surface A of one of the contact portions 1 is attached is shown.

As shown in FIG. 3, this elastic contactor 3 has a plurality of blades 19 arranged laterally at regular intervals between one and the other frames 17, 18 arranged with a predetermined width. A band, made entirely of beryllium steel. Further, each of the blades 19 has an angle of, for example, about 15 ° to 40 ° with respect to the frames 17 and 18, as shown in FIG. To attach this to the contact surface A of one of the contact portions, for example, a shallow groove 17 is formed and then fitted into the contact surface A by fitting.

Next, how to use the one-touch connector for current-carrying test of this embodiment will be described based on the above configuration.

First, the contact surface A of one contact portion 1 is brought into contact with the conductor to be tested, and then the other contact portion 2 is moved so as to sandwich the conductor W by parallel movement. After that, the other contact portion 2 presses the conductor W by the spring 4, and the connection of the connector to the conductor W is completed.

When connected in this manner, the conductor W and the contact surface A are brought into close contact with each other via the elastic contact 3. That is, since the individual blades 19 of the elastic contactor 3 are arranged at a predetermined angle and have a spring property, the conductor W as shown in FIG.
Also, the tip of the blade 19 comes into contact with the contact surface A with a large contact pressure F. Therefore, the conductor W
Will come into close contact with the contact surface A, and there will be no gap between each blade 19 and the conductor W and between each blade 19 and the contact surface A.

Further, since the plurality of blades 19 are arranged at a predetermined interval, only some of the contact portions do not locally come into contact with each other to cause concentrated resistance, and electric conduction becomes good. The inspection accuracy can be improved.

Further, by sandwiching the conductor by the parallel movement of the other contact portion 2, the mechanical contact of the conductor by the two contact surfaces A and B facing each other becomes stable with respect to the conductor of any cross section. The current flows as shown by arrow 1.

Further, in this example, electricity is transmitted through the core wire 5 of the electric wire 11 through the conductor W, the elastic contact 3, the contact portion 1, and the copper pipe 7, and the presence or absence of this energization is confirmed by a measuring device (not shown).

Further, in the above example, the elastic contactor 3 is arranged in the one contact portion 1, but as shown in FIG. 5, the elastic contactor 20 may be arranged in the other contact portion 2 as well. Good. In this case, since the current can flow from both sides of the conductor W, the area of one contact portion and the other contact portion can be reduced.

Further, as shown in FIG. 6, the elastic contacts 3 and 20 may be attached in a circular shape. In this case, the circular conductor W
May be advantageous to.

Further, as shown in FIG. 7, the repulsive force scale 22 of the spring 4 may be provided on the body of the other contact portion 2. In this case, when the conductor W to be tested is sandwiched between the contact portions 1 and 2 on one side and the test is performed, the diameter of the conductor W,
Since the contraction of the spring 4 differs depending on the plate thickness and the repulsive force thereof varies, this can be prevented. That is, the stopper 14 is rotated by using the screws 8 and 13, and the reference end 21 is adjusted to a predetermined position on the scale 22. Then, the repulsive force of the spring always reaches a predetermined value. Therefore, a desired spring repulsive force can be set according to the property of the conductor W to be inspected, so that the conductor W can be prevented from being damaged and the ultimate inspection accuracy can be accelerated.

Further, in addition to the above example, the positional relationship between the other contact portion 2 and the stopper 14 may be fixed, and the scale 22 may be a plate thickness scale. In this case, the diameter and the plate thickness of the inspection conductor W can be known.

[Effect] As described in detail above, according to the present invention, one of the contact portions is brought into contact with the conductor, and the other contact portion is moved in parallel toward the one contact portion to sandwich the conductor. Thus, the other contact portion can be pressed against the conductor by the pressing force of the spring. As a result, the connector can be firmly attached to the conductor with an appropriate elastic force, and the work of attaching and detaching the connector to the conductor can be facilitated.

In particular, the parallel movement of the other contact part with respect to one contact part ensures good mechanical contact even if the conductor to be tested has a circular or rectangular cross section. Therefore, a stable test can be performed without being restricted by the conductor to be tested.

By attaching an elastic contact to at least one of the contact surfaces of the one contact portion and the other contact portion, when the conductor is sandwiched, the elastic contact always adheres to the conductor by elastic force and Since the plurality of blades of the contactor are arranged at a predetermined interval, it is possible to prevent only some of the contact portions from locally contacting the conductor to cause concentrated resistance. As a result, the electrical conductivity is improved, and the inspection accuracy can be improved.

[Brief description of drawings]

FIG. 1 is a sectional view, FIG. 2 is a perspective view showing a usage state, FIG. 3 is a plan view of an elastic contactor, and FIG. 4 is a contacting state of the elastic contactor. FIG. 5, FIG. 6, FIG. 7 and FIG. 7 are sectional views showing other embodiments. In the figure, 1 ... One contact part, 2 ... The other contact part, 3 ... Elastic contactor, 4 ... Spring, 7 ... Copper pipe, 8 ... Inner screw, 13 ... Outer screw, 14 …… Stopper, W …… Conductor,

Claims (1)

[Scope of utility model registration request] 1. A one-touch connector for an electric current test, which is used for contacting a conductor to be tested and confirming an electric conduction state, comprising one contact portion and the other contact portion, and the one contact portion Is fixed to the tip of a conductive rod-shaped member protruding through the other contact portion, and an outer threaded portion is formed on the side of the conductive rod-shaped member and is screwed onto the outer threaded portion. A stopper having an internal thread portion to be fitted therein is rotatably provided on the rear end side of the other contact portion, and the other contact portion is arranged in the axial direction of the rod-shaped member with respect to the stopper. It is arranged so as to be able to move back and forth along the line, and between the other contact portion and the stopper,
A spring that presses the other contact portion toward the one contact portion side is provided, and further, one of the one contact portion and the other contact portion has a contact surface on which one frame and the other contact portion are provided. A one-touch connector for an electric current test, characterized in that an elastic contact having a plurality of blade members provided at predetermined intervals is attached between the elastic contact and the frame.