JPH09161871A - Mini test clip - Google Patents

Abstract

PROBLEM TO BE SOLVED: To dispense with a connecting equipment in the connection of a lead wire to facilitate the mounting operation, and avoid deterioration to extend the life of a part. SOLUTION: This mini test clip has a metal piece 12 on the end part of a lead wire connecting part 11, and it is made into a hollowed cylinder having one end side covered with a lid, which has a lead wire hole 22 for inserting a lead wire 30 in a prescribed area of the lid-side end of the side surface. It also has a lid part 20 having a female screw 21 as a means to be screwed to the lid part. In the mounting of the lead wire, the lid part 20 is screwed to the screw hole 12 of the metal piece 12, whereby the core wire part 31 of the lead wire 30 inserted to the lead wire hole 22 is pressed into contact with the end surface of the metal piece 12 and electrically connected to the lead wire connecting part 11.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a minitest clip for connecting to a terminal of an electronic component to collect an electric signal, and more particularly to a lead wire connecting structure thereof.

[0002]

2. Description of the Related Art In a mini test clip (probe) connected to a terminal (terminal) of an electronic component such as an IC (semiconductor integrated circuit) terminal and guiding an electric signal of this terminal to an input terminal of a predetermined signal measuring instrument or the like. Conventionally, two methods have been used for connecting lead wires. The mini test clip has a probe lead wire having a hook-shaped (or needle-like) tip, a head member made of synthetic resin or the like for accommodating the probe lead wire, a probe lead wire, and a lead wire. And a lead wire connecting portion for connecting to.

The first method of connecting the lead wires is a method of connecting the lead wires by soldering to the lead wire connecting portion of the mini test clip. The second method is to connect the lead wire connecting portion of the mini test clip and the lead wire in a connector form.

[0004]

However, in the above first method of connecting the lead wires by soldering to the lead wire connecting portions of the mini test clip, when connecting the lead wires to the lead wire connecting portions, There is a problem that the mini test clip made of synthetic resin may be melted and deformed by the heat generated by the soldering iron.

On the other hand, in the second method of connecting the lead wire connecting portion and the lead wire with the connector, it is necessary to prepare a connector shape in which the lead wire is connected to the mini test clip. .

Therefore, the present invention has been made in view of the above-mentioned problems, and does not require the use of a special tool or a connecting tool when connecting the lead wire to the mini-test clip, and the connection is made. At this time, it is an object of the present invention to provide a mini test clip which is configured so as not to deteriorate the mini test clip and improves operability, maintainability, and life of parts.

[0007]

In order to achieve the above object, the present invention is a mini-test clip for connecting to a terminal of an electronic component and collecting an electric signal. The present invention provides a mini test clip, characterized in that the lead wire is connected by a tightening action of the screwing means during screwing.

In the present invention, preferably, the screwing means is composed of a pair of male and female screws.

The present invention is preferably a test clip mounted on a terminal of an electronic component for probing an electric signal of the terminal, wherein a conductive substantially circular plate is provided at an end of a lead wire connecting portion. , A hollow cylindrical shape whose one end is covered with a lid, a hole for inserting a lead wire is provided in a predetermined region of the lid-side end of the side surface, and means for screwing with the circular flat plate is provided. A lid part, and the lead part inserted into the hole provided on the side surface of the lid part by screwing the lid part with the circular flat plate when the lead wire is attached. The core portion of the wire is pressed against the circular flat plate to make electrical connection with the lead wire connecting portion.

[0010]

Embodiments of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a perspective view showing the entire structure of a mini test clip according to an embodiment of the present invention. FIG. 2 shows the mini test clip lid A- shown in FIG.
A view taken along line A'is shown.

Referring to FIG. 1, a mini test clip according to an embodiment of the present invention accommodates a probe lead wire 16 having a hook-shaped tip portion hooked to a terminal to be measured of an electronic component, and the probe lead wire 16. Head part 1 made of synthetic resin
5, and a mini test clip (main body) 1 including a lead wire connecting portion 11 electrically connected to the probe conducting wire 16
0 and a mini test clip lid 20 that is detachable from the mini test clip body 10.

At the end of the lead wire connecting portion 11, a substantially circular flat plate (dish) metal piece 12 having a female screw hole 13 is attached.

Further, referring to FIG. 2, on the side surface of the hollow-cylindrical mini-test clip lid 20 whose one end is covered with a lid, the core wire portion 31 of the lead wire 30 is provided on the side of the end portion of the cylinder which is in contact with the lid.
A hole 22 for a lead wire for inserting a male thread 21 is provided inside the mini test clip lid 20 to be screwed into a female screw hole 13 (see FIG. 1) provided in the metal piece 12. Has been.

In this embodiment, the core wire portion 31 of the lead wire 30 with the coating removed is inserted into the lead wire hole 22 of the mini test clip lid 20, and the male screw 2 of the mini test clip lid 20 is inserted.
The lead wire 30 is attached to the mini test clip 10 by screwing it into the female screw hole 13 of the metal piece 12 and the metal piece 1.

The metal piece 12 is such that its diameter dimension fits within the inner diameter of the mini test clip lid 20, a female screw hole 13 is opened in the center thereof, and the lead wire connecting portion 11 is connected to the lead wire connecting portion 11. Attached so as to form a plane orthogonal to the longitudinal direction of the.

A lead wire hole 22 having a diameter of the lead wire core portion 31 is preferably formed on the side surface of the mini test clip lid 20 so as to be in contact with the lid, and a female screw hole 13 is formed in the center of the inside.
Attach a male screw 21 of the same diameter as.

The process of attaching the lead wire to the mini test clip in this embodiment will be described below in detail with reference to FIG. 3 for explaining the attachment state.

When attaching the lead wire 30 to the mini test clip 10, the core wire portion 31 of the lead wire 30 with the coating stripped is inserted into the lead wire hole 22 of the mini test clip lid 20, and the mini test clip 10 and the mini test clip 10 are attached. Align the lid 20 in the axial direction and use the mini test clip 1
By rotating 0 (head portion 15) in the screw tightening direction, the gap between the metal piece 12 and the mini test clip lid 20 is narrowed (tightened) by the action of the male screw 21 and the female screw hole 13.

Therefore, the core wire portion 31 of the lead wire 30 inserted in the gap between the metal piece 12 and the mini test clip lid 20 is screwed by the male screw 21 and the female screw 13,
When pressed between the metal piece 12 and the mini test clip lid 20, the lead wire 30 abuts the metal piece 12 and can be electrically connected to the mini test clip 10. When the lead wire 30 is removed, the screwing of the mini test clip lid 20 and the mini test clip body 10 may be released.

The above-described embodiments of the present invention are for explaining the present invention, and the present invention is not limited to the above-mentioned embodiments, and various embodiments conforming to the principle of the present invention are possible. Including.

[0022]

As described above, according to the present invention, the lead wire is pressed against the lead connecting portion by the tightening action of the screw when the mini test clip of the lead wire is attached. The mini test clip can be easily attached to the mini test clip, and the mini test clip is not melted and deformed by heat unlike the soldering method, and reliability and life of parts can be improved. The present invention also has the advantage that there is no need to prepare a connector for connecting the lead wires to the mini-test clip as in the conventional method using a connector.

Further, according to the mini test clip of the present invention, since the lead wire can be removed by loosening the screw, the lead wire can be freely attached and detached any number of times, and the lead wire can be easily replaced. And has the effect of improving maintainability.

[Brief description of the drawings]

FIG. 1 is a perspective view illustrating a configuration of a mini test clip according to an embodiment of the present invention.

FIG. 2 is a sectional view taken along the line AA ′ of FIG.

FIG. 3 is a diagram for explaining a step of attaching the lead wire to the mini test clip in the embodiment of the present invention.

[Explanation of symbols]

 10 mini test clip 11 lead wire connecting part 12 metal piece 13 female screw hole 20 mini test clip lid 21 male screw hole 22 lead wire hole 30 lead wire 31 core wire part

Claims (4)

[Claims] 1. A mini test clip for collecting an electric signal by connecting to a terminal of an electronic component, wherein a connecting portion of a lead wire is constituted by a detachable screwing means, and a tightening action at the time of screwing the screwing means. A mini test clip, characterized in that the lead wire is connected by means of. 2. The mini test clip according to claim 1, wherein the screwing means is composed of a pair of male and female screws. 3. A test clip for mounting on a terminal of an electronic component for probing an electric signal of the terminal, wherein a lead plate connecting portion is provided with a conductive substantially circular flat plate, and one end thereof is A hollow cylindrical shape covered with a lid, a lid portion provided with a hole for inserting a lead wire in a predetermined region of the lid side end of the side surface, and a lid portion provided with means for screwing with the circular flat plate, When mounting the lead wire, by screwing the lid portion to the circular flat plate, the core portion of the lead wire inserted into the hole provided on the side surface of the lid portion, ,
A test clip, wherein the test clip is pressed against the circular flat plate and electrically connected to the lead wire connecting portion. 4. The test clip according to claim 1, wherein a screw hole is provided in a central portion of the circular flat plate, and the lid portion is provided with a screw in a central portion of the lid.