JP2877051B2 - Mini test clip - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mini-test clip for connecting to a terminal of an electronic component and collecting 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 a terminal of an IC (semiconductor integrated circuit) and leading 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. Note that the mini-test clip electrically connects a probe lead having a hook-shaped (or needle-shaped) tip, a head member made of synthetic resin or the like for accommodating the probe lead, and a probe lead and a lead. And a lead wire connecting portion to be connected to the

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

[0004]

However, in the first method, in which the lead wire is connected by soldering to the lead connection portion of the mini test clip, when the lead wire is connected to the lead wire connection portion, There is a problem that the mini-test clip formed 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 connection portion and the lead wire with a connector, it is necessary to prepare a connector in which the lead wire has a connector shape to be connected to a mini test clip. .

SUMMARY OF THE INVENTION Accordingly, the present invention has been made in view of the above problems, and eliminates the need for using a special tool or connection tool when connecting a lead wire to a mini test clip. It is an object of the present invention to provide a mini-test clip which does not deteriorate the mini-test clip at the time and which improves operability, maintainability and component life.

[0007]

In order to achieve the above object, the present invention relates to a mini test clip body having a lead wire connection.
A conductive substantially circular flat plate is provided at the end of the part, and one end is
It is a hollow cylindrical shape covered with a lid, and the lid side end of the side surface
When a hole for inserting a lead wire is provided in a predetermined area
Both lids having means for screwing with the circular flat plate
A lid portion when attaching the lead wire.
Is screwed into the circular flat plate, whereby the lid
Lead wire inserted into the hole provided on the side surface of the part
Is pressed between the circular flat plate and the lid.
The contact is made and the electrical connection with the lead wire connection portion is made.
Characterized in that that.

In the present invention, the circular shape is preferably
A screw hole is provided at the center of the flat
Kifuta unit Ru provided with a screw in the center of the lid.

The present invention preferably provides a mini test clip.
A substantially cylindrical flat metal piece provided with a female screw hole at an end of a lead wire connection part on the opposite side of the probe lead wire of the main body, and a bottomed cylindrical lid attached to the main body,
A male screwed into the female screw hole of the metal piece on the inner bottom portion
Provided with a screw, to that side of the lead wire insert
Provided with holes, during installation of the lead wire, the lead
Insert the wire for lead wire insertion on the side of the lid,
The metal screw at the end of the male screw of the lid and the lead wire connection portion
Align the female screw hole of the metal piece and turn in the screw tightening direction.
By rotating, the screwing action of the male screw and the female screw
Thereby, the core portion of the lead wire is formed by the metal piece and the lid portion.
The lead wire is pressed between the inner bottoms to make an electrical connection between the lead wire and 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 overall configuration 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.
The figure cut | disconnected along the A 'line is shown.

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

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

Referring to FIG. 2, the side of hollow cylindrical mini-test clip lid 20, one end of which is covered by a lid, is provided with a core portion 31 of lead wire 30 on the side in contact with the lid at the cylindrical end.
And a male screw 21 screwed into the female screw hole 13 (see FIG. 1) provided in the metal piece 12 is provided inside the mini test clip lid 20. Have been.

In the present embodiment, the core wire portion 31 from which the lead wire 30 has been stripped 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 1 and the metal piece 12.

The metal piece 12 has a diameter that fits within the inner diameter of the mini-test clip lid 20. A female screw hole 13 is formed in the center of the metal piece 12, and the lead wire connection part 11 is connected to the lead wire connection part 11. Are mounted so as to form a surface orthogonal to the longitudinal direction of the

A hole 22 for a lead wire having a diameter of the lead wire core portion 31 is preferably formed on the side surface of the mini test clip cover 20 so as to be in contact with the cover.
A male screw 21 having the same diameter as the above is attached.

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

When attaching the lead wire 30 to the mini-test clip 10, the core portion 31 from which the lead wire 30 has been stripped is inserted into the lead-hole 22 of the mini-test clip lid 20, and the mini-test clip 10 and the mini-test clip With the lid 20 aligned in the axial direction,
By rotating the head 0 (head part 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.

For this reason, the core 31 of the lead wire 30 inserted into 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,
The lead wire 30 is pressed between the metal piece 12 and the mini-test clip lid 20 so that the lead wire 30 contacts the metal piece 12 and can be electrically connected to the mini-test clip 10. When the lead wire 30 is removed, the screw connection between the mini-test clip lid 20 and the mini-test clip main 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-described embodiments, but includes various forms in accordance with the principle of the present invention. Including.

[0022]

As described above, according to the present invention, the lead wire is pressed against the lead connection portion by the screw tightening action when the mini-test clip is attached to the lead wire. In addition, the operation of attaching the mini-test clip to the mini-test clip is facilitated, and the mini-test clip is not melted and deformed by heat unlike the method by soldering, so that the reliability and the life of parts can be improved. The present invention also has the advantage that it is not necessary to prepare a connector in which the lead wire is connected to the mini-test clip as in the conventional method using a connector.

Further, according to the mini-test clip of the present invention, the lead wire can be removed by loosening the screw, so that the lead wire can be freely attached and detached many times, and the lead wire can be easily replaced. This 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 line AA 'of FIG.

FIG. 3 is a diagram illustrating a process of attaching a lead wire to a mini-test clip in one embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Mini test clip 11 Lead wire connection part 12 Metal piece 13 Female screw hole 20 Mini test clip lid 21 Male screw hole 22 Lead hole 30 Lead wire 31 Core wire

Claims (4)

(57) [Claims] 1. A mini test clip attached to a terminal of an electronic component for probing an electric signal of the terminal, a conductive end is connected to an end of a lead wire connecting portion of the mini test clip body.
A substantially circular flat plate, and a hollow cylindrical shape with one side end covered with a lid,
A hole is provided in the specified area on the lid side for inserting lead wires.
And means for screwing with the circular flat plate are provided.
A lid, the lid having the circular shape when attaching the lead wire.
By screwing it into a flat plate
The core of the lead wire inserted into the hole
Pressed between the circular flat plate and the lid,
A mini test clip which is electrically connected to the lead wire connection part . 2. A screw hole is provided in the center of said circular flat plate.
And the lid is screwed into the center of the lid.
Mini test clip according to claim 1, characterized by comprising. 3. A mini- test clip attached to a terminal of an electronic component for probing an electric signal of the terminal, the mini-test clip being provided on a side of the mini-test clip main body opposite to a probe lead wire.
That substantially circular female screw hole is provided at an end portion of the lead wire connecting portion
It has a flat metal piece and has a bottomed cylindrical lid attached to the main body,
At the bottom, a male screw screwed into the female screw hole of the metal piece
Provided with a, with a hole for the lead wire insert is on its side, when mounting of the lead wire, the cover the lead wire
Insert for lead wire insertion on the side of the
Of the metal piece at the end of the male screw and the lead wire connection part
Align the female screw holes and rotate in the screw tightening direction.
With the screwing action of the male screw and the female screw,
The core of the lead wire is between the metal piece and the bottom inside the lid.
A miniature test clip, which is pressed by an electrical connection between the lead wire and the lead wire connecting portion. 4. The mini test clip according to claim 4, wherein a screw hole is provided at a central portion of said circular flat plate, and said lid portion is provided with a screw at a central portion on the inner bottom side of said lid. .