JP4595752B2 - Conductive wire connector and conductive wire connecting method - Google Patents

Description

  The present invention relates to a conductive wire connector for electrically connecting a conductive wire to a terminal of an electrode, and a conductive wire connection method.

Conventionally, an electrode clip for holding an electrode terminal and electrically connecting a conductive wire to the electrode terminal is well known, and there is a document disclosing the structure of the electrode clip (for example, , See Patent Document 1).
Patent Document 1 discloses a configuration of a so-called crocodile-type clip (crocodile mouth clip) in which a terminal is sandwiched between flat plates.
In addition to this alligator clip, an IC clip and an insect clip are also well known.
Utility Model Registration No. 2544325

The above-mentioned alligator clip, IC clip, and minnow clip have a structure that sandwiches the terminal of the electrode and the foot of the IC, so if there is no margin around the terminal or the like, the terminal or the like cannot be sandwiched. That is, it may not be possible to deal with a narrow space.
For example, as shown in FIG. 8, in the case of the terminal block 61 in which the insulating ribs 63, 63,... Are provided on both sides of the terminal screws 62, 62, the width between the insulating ribs 63, 63,. It is possible to insert the terminal portions 60a, 60b of the alligator clip 60 in the space of W and sandwich the terminal screws 62, 62,... Of the terminal block 61, but if this width W is narrow, This makes it impossible to insert the terminal portions 60a and 60b of the mouth clip 60.

  Further, in the case where the alligator clip 60 is inserted as in the example of FIG. 8, the terminal portions 60 a and 60 b are spread in a V shape, and thus may be detached from the terminal screw 62. is there.

  In addition, since it is necessary to perform a clamping operation of grasping the clip with a finger and opening and closing it, the workability is poor particularly when the working space is small.

In addition, there is a restriction on the angle of the clip with respect to the terminal or the like (the angle in the sandwiched state) because of the necessity of ensuring the stability of the clip with the terminal or the like sandwiched or the need to prevent poor conduction. The angle of this clip was poor in flexibility. For this reason, there may be a case where the terminal or the like cannot be sandwiched.
For example, as shown in FIG. 9, in the state where the cable terminal 71 is fixed with the terminal screw 62, when the terminal screw 62 has to be sandwiched with the alligator clip 60 inclined, the base portion of the terminal screw 62 is It will not be able to be pinched firmly and will cause problems such as coming off immediately.

  In addition, since the size of each clip needs to be matched to the size of the terminal or the like, it is necessary to prepare clips of different sizes when terminals of different sizes are mixed.

In addition, as shown in FIG. 10, when the crocodile clips 60A and 60B cannot be pinched securely, the crocodile clips 60A and 60B are brought into contact (connected) with the terminals of the terminal blocks 61A and 61B. The clips 60A and 60B must be held by hand. In the left hand, it is necessary to hold the tester 65 while holding the alligator clip 60A, and in the right hand, the alligator clip 60B. It will end up.
In addition, when the terminal blocks 61A and 61B are at a high position, the display unit of the tester 65 is far away from the operator's viewpoint, and it is difficult to see the display value.

  Therefore, the present invention proposes a conductive wire connector having a configuration in which a conductive wire is electrically connected to a connected portion such as a terminal in view of a problem in a connection form using a clip having a conventional configuration. is there.

  The problem to be solved by the present invention is as described above. Next, means for solving the problem will be described.

That is, as described in claim 1,
A conductive wire;
An extrusion section for extruding the conductive wire in a loop shape,
A conductive wire connecting tool configured to attach the conductive wire to the connected portion in a state where the connected portion is surrounded by the conductive wire and the connected portion and the conductive wire are in contact with each other; To do.

Moreover, as described in claim 2,
The conductive wire is
It is fixed to the advance / retreat mechanism provided in the extrusion part,
When the advance / retreat mechanism is moved to one side,
The loop formed by the conductive wire is enlarged,
When the advance / retreat mechanism is moved to the other side,
A configuration in which a loop formed of the conductive wire is reduced,
By reducing the loop of the conductive wire,
With the conductive wire surrounding the connected part, the connected part is narrowed down,
The conductive wire connector is configured to electrically connect the conductive wire and the connected portion.

Moreover, as described in claim 3,
The conductive wire is configured to be detachable from the advance / retreat mechanism.

Moreover, as described in claim 4,
The conductive wire is to be electrically connected to the cable of the measuring instrument.

Moreover, as described in claim 5,
At the tip of the extruded part,
Each of a plurality of locations almost evenly allocated from the center of the tip is provided with a wire insertion hole in which an opening is formed,
One or both of the wire insertion holes are
As the conductive wire goes in the direction of extrusion, the openings are provided so as to be separated from each other,
The conductive wire is pushed out from each opening along the inclination direction of the wire insertion hole.

Moreover, as described in claim 6,
The advance / retreat mechanism is provided by an elastic member.
The conductive wire loop is biased so as to move in a direction to be reduced.

Moreover, as described in claim 7,
The conductive wire connector is
It is set as the structure installed as an output part for connecting a measuring apparatus to a measuring object.

Further, as described in claim 8,
Enclose the connected part with a conductive wire extruded in a loop from the conductive wire connector ,
By reducing the loop of the conductive wire, the connected portion is narrowed down by the conductive wire,
In a state where the connected portion and the conductive wire are in contact with each other,
A conductive wire connection method is provided in which the conductive wire is attached to the connected portion.

In the invention described in claim 1 above,
Since there is no inconvenience such as the restriction of the clip angle (angle in the sandwiched state) as in the connection form using the conventional clip, the flexibility of the mounting angle can be excellent.

In the invention according to claim 2,
Since the loop can be enlarged or reduced, it is possible to cope with connected parts having different sizes with a single conductive wire connector.

In the invention according to claim 3,
Since the conductive wire as a consumable can be exchanged, other parts can be used for a long period of time, and the running cost is excellent.

  In the invention according to the fourth aspect, measurement by a measuring instrument is possible.

In the invention according to claim 5,
When the conductive wire is extruded, the width of the loop of the conductive wire can be increased along the inclination of the wire insertion hole, and a loop surrounding the connected portion can be easily formed. , Workability will be good.

In the invention according to claim 6,
The operation of reducing the loop of the conductive wire, that is, the operation of completing the connection can be performed simply by letting go of the advance / retreat mechanism, and can be configured with excellent workability.

In the invention according to claim 7,
When the measurement is necessary, the loop can be formed to connect the conductive wire or the like of the conductive wire connector connected to the measuring device, so that the measurement can be easily performed.

In the invention according to claim 8,
Since there is no inconvenience such as the restriction of the angle of the clip (angle in the sandwiched state) as in the connection form using the conventional clip, it is possible to provide a connection method with excellent flexibility in the attachment angle.

FIG. 1 shows a conductive wire connector 1 according to the present invention,
A conductive wire 10 brought into contact with a connected portion (terminal screw 2) such as an electrode terminal;
An extruding portion 20 for extruding the conductive wire 10 in a loop shape,
The conductive wire 10 surrounds the connected portion (terminal screw 2) and the connected wire (terminal screw 2) and the conductive wire 10 are in contact with each other. It is set as the structure attached to a connection part (terminal screw 2).

  As described above, by adopting a configuration in which electrical connection is performed by the conductive wire 10, there is no inconvenience such as restriction of the clip angle (angle in the sandwiched state) as in the connection form using the conventional clip. Therefore, as shown in FIG. 5, the flexibility of the attachment angle can be excellent. For example, when the cable terminal 41 exists, the conductive wire 10 can be firmly connected to the root portion of the terminal screw 2 so as to avoid the cable terminal 41.

Further, as shown in FIG. 3, in order to surround the terminal screw 2 which is a connected portion with the conductive wire 10, there are provisionally provided insulating ribs 29 and 29 on the terminal block, and the connected portion (terminal screw 2). ), The conductive wire 10 can be connected even when the space around is small.
In the case of FIG. 3, it is sufficient to secure an overall distance L obtained by adding a value twice the diameter of the conductive wire 10 to the diameter of the terminal screw 2.

Examples of the above configuration will be described in detail below.
As shown in FIG. 1, the conductive wire 10 is extruded in a loop shape from the extruded portion 20, and the terminal screw 2 and the conductive wire 10 are surrounded by the terminal screw 2 which is a connected portion by this loop. Are electrically connected. Then, voltage measurement using a tester is performed through the sensor cable 11 electrically connected to the conductive wire 10.

As shown in FIG. 1, the push-out portion 20 is configured by slidably providing a piston 21 as an advance / retreat mechanism in a slide hole 22 a provided in a cylindrical main body 22.
Further, in the main body 22, the end portion on the side where the piston 21 is inserted is provided with a large diameter portion 22 b having a larger outer diameter than other portions, and the main body 22 is sandwiched between the index finger and the middle finger. In the state, these fingers can be engaged with the large-diameter portion 22b, and the piston 21 can be pushed with the thumb. Similar to the operation of a general syringe, this can be carried out with one hand, and has a configuration excellent in operability.
Further, a large diameter portion 21c is also provided at the rear end portion (on the side opposite to the main body 22) of the piston 21, so that the operability of the pressing operation with the thumb is good.

  As shown in FIG. 1, a cap 23 is screwed on the opposite side of the main body 22 where the piston 21 is inserted. The cap 23 is provided with a wire insertion hole 24C communicating with the sliding hole 22a. The wire insertion hole 24 </ b> C is branched into wire insertion holes 24 </ b> A and 24 </ b> B in the vicinity of the distal end portion inside the cap 23, leading to the outer distal end of the cap 23, so that openings 24 a and 24 b are formed on the outer surface of the cap 23. It has become.

  Then, as shown in FIG. 1, both ends of the conductive wire 10 are inserted from the openings 24a and 24b, and the both ends are fixed to a conductive portion 30 described later, whereby the conductive wire 10 is A loop shape is formed outside the cap 23.

  Further, as shown in FIG. 1, with respect to the wire insertion holes 24 </ b> A and 24 </ b> B, the cap 23 constituting the distal end portion of the extruded portion 20 has openings at a plurality of locations substantially evenly allocated from the center of the distal end. Wire insertion holes 24A and 24B in which 24a and 24b are formed are provided, and the wire insertion holes 24A and 24B are arranged such that the openings 24a and 24b are separated from each other in the direction in which the conductive wire 10 is pushed out. The conductive wires 10 are provided in an inclined manner and are extruded from the openings 24a and 24b along the inclination direction of the wire insertion holes 24A and 24B.

  With this configuration, when the conductive wire 10 is extruded, as shown in FIG. 4, the width of the loop of the conductive wire 10 can be increased along the inclination of the wire insertion holes 24A and 24B. The loop surrounding the terminal screw 2 can be easily formed, and the workability is good.

On the other hand, as shown in FIG. 4, when the conductive wire 10 is accommodated, the conductive wire 10 is inserted in an oblique direction with respect to the wire insertion holes 24 </ b> A and 24 </ b> B. A wide wrap angle (contact area) of the conductive wire 10 can be secured, electrical connection can be ensured, and electric resistance can be reduced.
In the example shown in FIGS. 1 and 4, both the wire insertion holes 24 </ b> A and 24 </ b> B are inclined to form a substantially V-shape, but only one of the wire insertion holes 24 </ b> A and 24 </ b> B is inclined. Also good.

  Further, as shown in FIG. 2, the distance T between the openings 24a and 24b is preferably configured to be narrower than the connected portion, for example, less than half the diameter of the terminal screw 2 serving as the connected portion. . In this way, by configuring the connection portion to be narrower than the connected portion, a wide wrap angle of the conductive wire 10 with respect to the connected portion can be secured.

Further, as shown in FIG. 1, in the above configuration, a loop shape is easily formed by providing the openings 24a and 24b at two locations.
Even if the conductive wire 10 is configured to be extruded from one opening, a loop shape will be formed, but a crease will be formed at the center, and a gentle arc will be formed. I can't draw.
In this regard, by providing the openings 24a and 24b at two locations and extruding the conductive wire 10 from the openings 24a and 24b, even if a crease is formed, the conductive wire 10 At the time of accommodation, the fold can be extended at the tip surface of the cap 23. From this viewpoint, it is preferable to provide the two openings 24a and 24b.
However, it goes without saying that the number of openings is not particularly limited as long as the loop shape is formed.

  Further, as shown by a front view arrow A in FIG. 3, the tip portion of the cap 23 has an arc shape, so that no extra corner portion is formed at the tip portion of the cap 23 in the front view. It can be set as the structure with a wide freedom degree (flexibility) of the angle change of the arrow C direction of FIG.

Further, as shown by a side view arrow B in FIG. 3, the thickness W1 of the tip of the cap 23 is set to be narrower than the thickness W2 of the shaft portion (for example, one-third thickness). In the side view, the thickness of the cap 23 can be reduced, and the degree of freedom (flexibility) in changing the angle in the direction of arrow D in FIG. 3 can be increased.
Further, with this configuration, as shown in FIG. 5, even when the cable terminal 41 exists, the tip of the cap 23 can be brought close to the root portion of the terminal screw 2 so as to avoid the cable terminal 41. The conductive wire 10 can be firmly inserted into the recess 2a (see FIG. 3) at the root portion.

  As shown in FIG. 1, the main body 22, the piston 21, and the cap 23 constituting the extruded portion 20 are made of an insulating resin molded product such as MC nylon, for example, and the conductive wire connector 1. It is desirable to reduce the overall weight and improve workability.

Further, as shown in FIG. 1, a spring 25 as an elastic member is interposed between the inner rear end surface of the cap 23 and the front end surface of the piston 21 in the sliding hole 22 a of the main body 22. The piston 21 is configured to be urged by the spring 25 so as to move in the direction opposite to the cap 23, that is, in the direction in which the loop of the conductive wire 10 is reduced. The spring 25 can be replaced as appropriate. The reaction force generated in the piston 21 can be set to a desired value depending on the spring constant of the spring 25 and the number of turns.
In addition, as an elastic member, the cylindrical member which consists of rubber | gum, resin other than the spring 25 may be sufficient.

As shown in FIG. 1, a cylindrical conductive portion 30 is provided at the tip of the piston 21, and the conductive portion 30 moves in the spring 25 in accordance with the movement of the piston 21. It is supposed to be.
Further, as shown in FIG. 2, a through hole 30 a is formed in the conducting portion 30 in the sliding direction of the piston 21. In the through hole 30a, both ends of the conductive wire 10 are inserted from the opening opposite to the piston 21, and both ends of the conductive wire 10 are fixed by fixing bolts 31 screwed into the bolt holes 34. , Fixed to the conducting portion 30.
Thus, the conducting portion 30 functions as a fixing portion of the conductive wire 10, and the conductive wire 10 is configured to be detachable from the fixing portion provided on the piston 21. . With such a configuration, it is possible to replace the conductive wire 10 that is easily consumed.

As shown in FIG. 2, the terminal 12 of the sensor cable 11 connected to a measuring device (not shown) is inserted into the through hole 30 a of the conducting portion 30 from the opening on the piston 21 side, and the bolt hole 35. The terminal 12 is fixed to the conducting portion 30 by a fixing bolt 32 screwed into the conductive portion 30.
The conductive portion 30 is made of a conductive member such as metal (for example, copper), and the conductive wire 10 and the terminal 12 (sensor cable 11) are electrically connected via the conductive portion 30. Connected to each other.
Thus, the said conductive wire 10 is set as the structure electrically connected to the cable (sensor cable 11) of a measuring instrument via the conduction | electrical_connection part 30 fixed to the piston 21 as an advancing / retreating mechanism.

  Further, as shown in FIG. 2, the terminal 12 is provided with a screw portion 12a that is screwed into a screw hole 21a provided at a tip portion of the piston 21, and the screw portion 12a is connected to the screw hole 21a. The conductive portion 30 is fixed to the piston 21 by screwing.

  Further, as shown in FIG. 1, the piston 21 is provided with a through hole 21b penetrating in the sliding direction, and the sensor cable 11 can be inserted into the through hole 21b.

Further, as shown in FIG. 6, the sensor cable 11 is connected to a measuring device such as a tester 51, and various measurements are performed.
The conductive wire connector 1 according to the present invention can be widely applied to measuring instruments such as an oscilloscope and a high coder in addition to the tester 51.

The above is the embodiment of the conductive wire connector 1 according to the present invention.
That is, as shown in FIG. 1, the conductive wire 10 is fixed to the conduction portion 30 provided in the piston 21 as an advance / retreat mechanism provided in the push-out portion 20. When the conduction portion 30 is moved to one side by the operation of the piston 21, the loop formed by the conductive wire 10 is expanded, and the operation of the piston 21 When the conductive portion 30 is moved to the other side, the loop formed by the conductive wire 10 is reduced, and the conductive wire 10 is reduced to reduce the loop of the conductive wire 10 so as to surround the terminal screw 2. The terminal screw 2 is narrowed down by the conductive wire 10 to electrically connect the conductive wire 10 and the connected portion.

  Since the loop can be enlarged or reduced in this way, it is possible to deal with connected parts having different sizes with a single conductive wire connector 1. For example, as shown in FIG. 4, it is possible to form a larger loop 10 a by enlarging the conductive wire 10, and it is possible to deal with connected portions of various sizes.

  As shown in FIG. 1, the spring 25 biases the piston 21 (conduction portion 30) to the other side (the side from which the piston 21 is pulled out), thereby reducing the loop of the conductive wire 10. The operation, i.e., the operation for completing the connection, can be performed simply by releasing the piston 21, and can be configured with excellent workability.

  Further, as shown in FIG. 1, by adopting a configuration in which the conductive wire 10 is pulled by the spring 25, the connected portion can be surrounded by the conductive wire 10 with a constant tightening force, and a constant electrical connection is always achieved. Can be formed. As a result, there is no variation in measured values, and highly accurate measurement can be realized.

Further, as shown in FIG. 3, by reducing the loop, the conductive wire 10 and the terminal screw 2 are brought into contact with each other to form an electrical connection.
Further, in the case of the terminal screw 2, an electrical connection can be formed by allowing the conductive wire 10 to enter the recess 2a. The occurrence of defects can be prevented.
In addition, by surrounding the terminal screw 2 with the conductive wire 10 in this way, it is possible to secure a wide contact area between the two, thereby realizing a connection configuration with low electrical resistance. The

  Further, as described above, since the conductive wire 10 that becomes a consumable item can be replaced, other parts can be used for a long period of time, and a configuration with excellent running cost can be realized.

Further, since the conductive wire 10 is tied to the connected portion and does not come off after being attached, as shown in FIG. 6, after the conductive wire 10 is connected to the terminal of the terminal block 53A, the conductive wire 10 is electrically conductive. Therefore, it is possible to remove the hand from the wire connecting tool 1, and to free the operator's hand, which is excellent in workability.
In addition, this makes it possible to bring the tester 51 close to the operator's viewpoint, so that the display unit can be easily confirmed, and workability is improved.
In addition, the improvement in workability becomes more effective as the number of terminal blocks 53A to 53E increases. Compared with the conventional clip-type configuration, the work time can be greatly shortened and the work of the operator can be improved. The burden can be greatly reduced.

  Moreover, although the example which connects the conductive wire connector 1 with respect to the terminal screw 2 was shown in the above Example, as a to-be-connected part, it is not restricted to the terminal screw 2, This invention is various forms. It is applicable to the connection of the conductive wire 10 to the electrode terminal.

  Further, as shown in FIG. 7, for example, the conductive wire connector 1 is always used as an output unit 56 for connecting a measuring instrument such as the tester to the control panel 55 of the equipment to be measured. It is also possible to do.

  In this case, when measurement is necessary, the conductive wire 10 is pushed out by pushing down the large diameter portion 22b (see FIG. 1) of the main body 22 to form a loop. For example, it is possible to insert the conductive wires 10 of the conductive wire connector 1 connected to the measuring instrument and connect them to each other. And by this structure, it becomes possible to perform measurement operation (connection operation) easily.

  Further, except when necessary, the conductive wire 10 is pulled from the inside of the cap 23 by the spring 25 and is in close contact with the outer surface of the cap 23, so that it is unnecessarily exposed. It is possible to prevent problems such as a short circuit.

Front sectional drawing shown about the Example of the conductive wire connector which concerns on this invention. The figure shown about structures, such as a cap and a conduction part. The figure explaining the state which connected the electroconductive wire. Explanatory drawing about a big loop being formed. The figure explaining the flexibility of the attachment angle of an electroconductive wire connector. The figure explaining implementation of the measurement using the conductive wire connector which concerns on this invention. The figure shown about the form installed as an output part for connecting a measuring device to a measuring object. The figure explaining the connection to the terminal by an alligator clip. The figure explaining the attachment angle of an alligator clip. The figure explaining embodiment of the measurement at the time of using the conventional clip.

1 Conductive wire connector 2 Terminal screw (connected part)
DESCRIPTION OF SYMBOLS 10 Conductive wire 11 Sensor cable 20 Extrusion part 21 Piston 22 Main body 23 Cap 25 Spring 30 Conduction part

Claims (8)

A conductive wire;
An extrusion section for extruding the conductive wire in a loop shape,
A conductive wire connecting tool configured to attach the conductive wire to the connected portion in a state where the connected portion is surrounded by the conductive wire and the connected portion and the conductive wire are in contact with each other. The conductive wire is
It is fixed to the advance / retreat mechanism provided in the extrusion part,
When the advance / retreat mechanism is moved to one side,
The loop formed by the conductive wire is enlarged,
When the advance / retreat mechanism is moved to the other side,
A configuration in which a loop formed of the conductive wire is reduced,
By reducing the loop of the conductive wire,
With the conductive wire surrounding the connected part, the connected part is narrowed down,
The conductive wire connector according to claim 1, wherein the conductive wire and the connected portion are electrically connected to each other. The conductive wire is configured to be detachable with respect to the advance / retreat mechanism,
The conductive wire connector according to claim 2. The conductive wire is electrically connected to a cable of a measuring instrument,
The conductive wire connector according to any one of claims 1 to 3. At the tip of the extruded part,
Each of a plurality of locations almost evenly allocated from the center of the tip is provided with a wire insertion hole in which an opening is formed,
One or both of the wire insertion holes are
As the conductive wire goes in the direction of extrusion, the openings are provided so as to be separated from each other,
From each of the openings, the conductive wire is configured to be extruded along the inclination direction of the wire insertion hole,
The conductive wire connector according to any one of claims 1 to 4. The advance / retreat mechanism is provided by an elastic member.
The conductive wire loop is biased to move in a direction to be reduced.
It is characterized by
The conductive wire connector according to any one of claims 2 to 5. The conductive wire connector is
It is configured to be installed as an output unit for connecting measurement equipment to the measurement target.
It is characterized by
The conductive wire connector according to any one of claims 1 to 6. Enclose the connected part with a conductive wire extruded in a loop from the conductive wire connector ,
By reducing the loop of the conductive wire, the connected portion is narrowed down by the conductive wire,
In a state where the connected portion and the conductive wire are in contact with each other,
A conductive wire connection method, wherein the conductive wire is attached to the connected portion.