JP6499573B2 - Electric power take-out cable, plug receiving device, and electrical device - Google Patents

Description

  The present invention relates to a power extraction cable, a plug receiving device, and an electrical device.

  Patent Document 1 describes a clip device that includes a magnet portion that is attracted to a terminal by magnetic force, and an electric cable (lead wire) that is electrically connected to the magnet portion. In this clip device, in a state where the magnet portion is attracted to the terminal, the terminal and the electric cable are conducted through the conductive magnet portion.

  Patent Document 2 has a structure in which a conductive permanent magnet is attached to the other end of a cylindrical conductor having an electric cable (conductor) connected to one end, and the cylindrical conductor is covered with an insulating material. A conductive connection device is described. In this conductive connection device, in a state where the conductive permanent magnet is attracted to the terminal, the terminal and the electric cable are conducted through the conductive permanent magnet and the conductor.

JP 2006-127966 A Japanese Utility Model Publication No. 7-34562

  In any of the techniques of Patent Document 1 and Patent Document 2, the terminal and the electric cable are electrically connected via a magnet (a magnet part, a conductive permanent magnet). For this reason, since the continuity between the terminal and the electric cable is affected by the electric resistance of the magnet, it is not always easy to obtain sufficient continuity between the terminal and the electric cable.

  The present invention has been made in view of the above problems, and provides a power take-out cable, a plug receiving device, and an electric device that can easily improve the conductivity between the terminal and the electric cable.

  According to the present invention, an adsorption portion that is adsorbed to a terminal by magnetic force, and a state in which one end portion is exposed from the adsorption portion while penetrating the adsorption portion, and the adsorption portion is adsorbed to the terminal, A power take-out cable is provided that includes a conductor portion that is in contact with the terminal and electrically connected to the one end, and an electric cable that is electrically connected to the conductor portion.

  According to the present invention, there is also provided a plug receiving device comprising the power take-out cable of the present invention and a plug receiving portion that is electrically connected to the conductor portion via the electric cable and receives the plug. .

  Further, according to the present invention, the power take-out cable of the present invention is electrically connected to the conductor portion via the electric cable, and the electric power supplied from the terminal via the conductor portion and the electric cable. There is provided an electric device including an operation unit that operates.

  According to the present invention, good electrical continuity between the terminal and the electric cable can be easily realized.

It is a figure which shows the front-end | tip part of the electric power extraction cable which concerns on 1st Embodiment, Among these, (a) is sectional drawing, (b) is a top view, (c) is a figure which shows a front end surface. It is a whole perspective view of the electric power extraction cable which concerns on 1st Embodiment. FIG. 3A is a diagram illustrating a state before the tip of the power take-out cable according to the first embodiment is connected to the terminal, and FIG. 3B is a tip of the power take-out cable according to the first embodiment. It is a figure which shows the state which connected to the terminal. 1 is an overall perspective view of a plug receiving device according to a first embodiment. It is a mimetic diagram of the electric equipment concerning a 1st embodiment. FIG. 6A is a cross-sectional view showing a tip portion of a power take-out cable according to the first modification, and FIG. 6B is a cross-sectional view showing a front end portion of the power take-out cable according to the second modification. It is a figure which shows the electric power extraction cable which concerns on 2nd Embodiment, Among these, (a) is the state before a conductor part is attached to an adsorption | suction part, (b) is the state where the conductor part was attached to the adsorption | suction part. (C) shows the state in which the screwing depth of the conductor portion with respect to the suction portion is adjusted so that the protrusion is hidden behind the suction portion. It is a perspective view of the conductor part of the electric power extraction cable which concerns on 2nd Embodiment.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In all the drawings, the same components are denoted by the same reference numerals, and description thereof will be omitted as appropriate.

[First Embodiment]
First, the first embodiment will be described with reference to FIGS.
FIG. 1 is a view showing a tip portion 110 of a power take-out cable 100 according to the first embodiment, in which FIG. 1 (a) is a sectional view, FIG. 1 (b) is a plan view, and FIG. It is a figure which shows a front end surface. 1A is a cross-sectional view (longitudinal cross-sectional view) along the line AA in FIG. 1C, and FIG. 1C is the tip 110 from the direction of arrow C in FIG. It is a figure which shows the state which looked at the front end surface.
FIG. 2 is an overall perspective view of the power extraction cable 100 according to the first embodiment.

As shown in FIGS. 1 and 2, the power take-out cable 100 according to the present embodiment is electrically connected to the attracting portion 10 that is attracted to the terminal by magnetic force, the conductor portion (for example, the conductor constituting member 20), and the conductor portion. An electrical cable 30.
The conductor portion penetrates the suction portion 10 and is provided in a state where one end portion of the conductor portion (for example, one end portion 21 of the conductor constituting member 20) is exposed from the suction portion 10, and the suction portion 10 is attracted to the terminal 50. In the attracted state, one end portion of the conductor portion (for example, one end portion 21 of the conductor constituting member 20) contacts the terminal 50 and is electrically connected.
Details will be described below.

The attracting unit 10 includes a permanent magnet. As an example, the entire attracting portion 10 is composed of one permanent magnet. Although the shape of the adsorption | suction part 10 is not specifically limited, For example, the adsorption | suction part 10 is formed in columnar shape (preferably cylindrical shape).
A through hole 10 a that penetrates the suction portion 10 is formed in the suction portion 10. The arrangement of the through-holes 10a in the suction part 10 is not particularly limited, but as an example, the through-holes 10a extend along the center line of the suction part 10 (for example, the axis when the suction part 10 is cylindrical). Yes. The cross-sectional shape of the through hole 10a is not particularly limited, but may be a circular shape, for example.
Since the permanent magnet which comprises the adsorption | suction part 10 does not ask | require electroconductivity, a kind in particular is not limited. For this reason, the adsorption | suction part 10 can be comprised with an inexpensive ferrite magnet, for example. However, the attracting portion 10 may be composed of a neodymium magnet having excellent attracting force.

  The end surface of the one end portion 11 of the suction portion 10 is a concave portion 11a having a concave curved surface shape (eg, a hemispherical shape). As will be described later, the one end portion 11 of the suction portion 10 is sucked against the head portion 52b of the fixing screw 52 constituting the terminal 50 (FIG. 3). And the recessed part 11a becomes a shape which accommodates at least the top part of the head 52b, for example. The radius of curvature of the concavely curved concave portion 11a is equal to or larger than the radius of curvature of the head 52b so that the concave portion 11a can be in good surface contact with the head 52b. It is preferable.

The conductor constituting member 20 is made of a material having good conductivity. As a material constituting the conductor constituting member 20, for example, a metal material such as copper, iron, stainless steel, and aluminum is preferably used.
The conductor constituent member 20 is fixed to the suction portion 10 in a state of being inserted into the through hole 10 a of the suction portion 10. Although the fixing method of the conductor structural member 20 with respect to the adsorption | suction part 10 is not specifically limited, For example, adhesion fixing or press-fit fixing etc. are employable.
The shape of the conductor constituting member 20 is not particularly limited, but is preferably a shape that fits into the through hole 10a. That is, when the through hole 10a is a straight hole having a circular cross section, the conductor component member 20 is formed in a columnar shape, and the outer diameter of the conductor component member 20 is equal to the inner diameter of the through hole 10a or It is preferably set to be slightly smaller than the inner diameter of the through hole 10a.
In a state where the conductor constituent member 20 is fixed to the suction portion 10, the one end portion 21 of the conductor constituent member 20 is exposed from the one end portion 11 of the suction portion 10. More specifically, for example, the one end portion 21 of the conductor constituting member 20 is exposed from the suction portion 10 at the central portion of the concave portion 11 a of the suction portion 10. The one end portion 21 of the conductor constituting member 20 may form the concave curved surface shape (for example, hemispherical shape) together with the recessed portion 11a, or may be a planar shape (for example, with respect to the axis of the conductor constituting member 20). May be formed in an orthogonal plane shape).
Further, the other end portion 22 of the conductor constituting member 20 is exposed at, for example, the other end portion 12 of the suction portion 10. More specifically, for example, the other end portion 22 of the conductor constituting member 20 is exposed from the suction portion 10 at the central portion of the end face of the other end portion 12 of the suction portion 10.

The electric cable 30 is, for example, a covered wire having a conducting wire 31 made of a conductive material and a covering portion 32 made of an insulating material and covering the periphery of the conducting wire 31.
One end of the conducting wire 31 is electrically connected to the conductor constituting member 20. More specifically, one end portion of the conducting wire 31 is in contact with and electrically connected to the other end portion 22 of the conductor constituting member 20, for example. One end portion of the conducting wire 31 is preferably fixed to the other end portion 22 by soldering or the like.

Furthermore, the power extraction cable 100 preferably includes an insulating case 40 that accommodates the suction portion 10 therein. For example, the case 40 is formed in a cylindrical shape in which an opening 40 a is formed on one end side (front end side) and the other end side (base end side) is closed by a base end side blocking portion 42. That is, the case 40 includes, for example, a cylindrical peripheral wall portion 41 and a base end side blocking portion 42 that closes one end portion (end portion on the base end side) of the peripheral wall portion 41. The proximal end side blocking portion 42 is formed, for example, in a plate shape (board shape), and is disposed so as to be orthogonal to the axial direction of the peripheral wall portion 41. Although the insulating material which comprises the case 40 is not specifically limited, For example, it can be set as resin.
The case 40 is preferably formed in a shape in which the suction portion 10 is fitted into the case 40. That is, when the suction part 10 is cylindrical, for example, the case 40 (the peripheral wall part 41) is formed in a cylindrical shape, and the inner diameter (of the peripheral wall part 41) of the case 40 is equal to the outer diameter of the suction part 10. Or it is preferably set to be slightly larger than the outer diameter of the suction portion 10.
The suction portion 10 is accommodated in the case 40 (in the peripheral wall portion 41) in such a direction that the concave portion 11a is positioned on the opening 40a side of the case 40.
In addition, as shown to Fig.1 (a), it is a preferable example that the other end part 12 of the adsorption | suction part 10 has contact | abutted to the inner surface of the base end side obstruction | occlusion part 42. FIG. However, another structure may be interposed between the proximal end side blocking portion 42 and the other end portion 12.
As shown in FIG. 1A, it is preferable that the tip position on the one end 11 side of the suction portion 10 and the tip position on the opening 40 a side of the case 40 are aligned in the axial direction of the suction portion 10.
The suction unit 10 is fixed to the case 40. Although the fixing method of the adsorption | suction part 10 with respect to case 40 is not specifically limited, For example, adhesion fixing or press-fit fixing etc. are employable.

An insertion hole 42 a penetrating the base end side blocking portion 42 is formed in the base end side blocking portion 42 of the case 40. The arrangement of the insertion hole 42a in the proximal end side blocking portion 42 is not particularly limited. For example, the insertion hole 42a is disposed at the center of the proximal end side blocking portion 42, and the through hole 10a and the insertion hole 42a are mutually connected. It is arranged coaxially.
One end of the conducting wire 31 is in contact with the other end 22 of the conductor constituting member 20 through the insertion hole 42a. Thereby, the one end part of the conducting wire 31 is electrically connected to the other end part 22 of the conductor constituting member 20.
It is preferable that the conducting wire 31 is not exposed to the outside, for example, because the distal end of the covering portion 32 abuts against the outer surface of the proximal end side blocking portion 42. Note that the periphery of the conducting wire 31 led out of the case 40 from the insertion hole 42a is covered by an insulating cover member (not shown) at the boundary between the outer surface of the proximal end side blocking portion 42 and the distal end of the covering portion 32. It is also preferable that

  The length of the electric cable 30 is not particularly limited. At the end (other end) opposite to the tip 110 side of the electric cable 30, the positions of the end of the covering portion 32 and the end of the conducting wire 31 may be aligned (see FIG. 2). Further, the end portion of the conducting wire 31 may be exposed from the end portion of the covering portion 32.

  The power extraction cable 100 is configured as described above.

Next, an example of an operation for connecting the power extraction cable 100 to the terminal 50 will be described with reference to FIG.
3A shows a state before the tip 110 of the power extraction cable 100 is connected to the terminal 50, and FIG. 3B shows a state where the tip 110 is connected to the terminal 50. As shown in FIG.

Although the specific structure of the terminal 50 is not particularly limited, as an example, the terminal 50 fixes a circular flat plate-shaped annular terminal 51 with a hole formed in the center thereof, and the annular terminal 51 to the terminal fixing portion 55. And a fixing screw 52. The terminal fixing portion 55 has a plate shape or the like, for example, and a screw hole into which the fixing screw 52 is screwed is formed through the terminal fixing portion 55.
The center terminal of the annular terminal 51 is aligned with the screw hole of the terminal fixing portion 55, the annular terminal 51 is disposed on one surface of the terminal fixing portion 55, and the fixing screw 52 is inserted into the hole of the annular terminal 51. The terminal 50 constituted by the annular terminal 51 and the fixing screw 52 is fixed to the terminal fixing portion 55 by being screwed into the screw hole of the terminal fixing portion 55 via the screw.
The fixing screw 52 is composed of a conductive magnetic body that is attracted by a magnet. The material constituting the fixing screw 52 can be, for example, a magnetic metal such as 400 series stainless steel or steel material.
The annular terminal 51 may be made of a conductive magnetic material, like the fixing screw 52, or may be made of a conductive material (non-magnetic material) that is not attracted by a magnet.

Here, the fixing screw 52 includes a shaft portion 52a in which a screw thread is formed around and a head portion 52b formed at one end of the shaft portion 52a. The shape of the head 52b is not particularly limited, and is formed in a shape such as a hemisphere having a convex curved surface, for example.
In addition, when the top part of the head part 52b is planar, the end surface at the side of the one end part 11 of the adsorption | suction part 10 is not in the recessed part 11a, but in shapes, such as planar shape which can carry out surface contact with the top part of the head part 52b. Preferably it is formed.

The annular terminal 51 is a crimp terminal or the like fixed to one end of the power wiring.
This power wiring is, for example, power wiring connected to the secondary side of the breaker of the switchboard. That is, the terminal 50 is a terminal on the secondary side of this breaker.
For this reason, when there is no power failure and the breaker (wiring circuit breaker) to which the power wiring is connected is on, power is supplied to the power wiring, and therefore the power wiring is connected. Power is also supplied to the terminal 50.

As shown in FIG. 3A, by bringing the tip side portion (the portion on the one end portion 11 side) of the tip portion 110 of the power extraction cable 100 closer to the terminal 50, as shown in FIG. The one end 11 of 10 is attracted to the head 52b of the fixing screw 52 constituting the terminal 50, and the one end 21 of the conductor constituting member 20 contacts the head 52b.
Thereby, the conductor constituting member 20 is electrically connected to the fixing screw 52. Therefore, the electric power supplied to the fixing screw 52 can be taken out via the conductor constituting member 20 and the conducting wire 31. That is, the power supplied to the terminal 50 can be taken out using the power take-out cable 100.

FIG. 4 is an overall perspective view of the plug receiving device 200 according to the first embodiment.
The plug receiving device 200 according to the present embodiment is electrically connected to the power extraction cable 100 according to the present embodiment and a conductor portion (for example, the conductor component member 20) via the electric cable 30, and receives the plug. Unit 60.

The plug receiving device 200 includes, for example, a pair of power extraction cables 100 (a power extraction cable 100a and a power extraction cable 100b), and the electric cable 30 of the pair of power extraction cables 100 on the side opposite to the tip portion 110 side. The end portion is electrically connected to the plug receiving portion 60.
For example, the electric cable 30 of the pair of power extraction cables 100 is preferably a restraining portion 35 in which the covering portions 32 are integrated and bundled together on the plug receiving portion 60 side.

  For example, a pair of insertion holes 61 and 62 are formed in the plug receiving portion 60. In one of the insertion holes 61, a terminal (not shown) is connected to the end of the electric cable 30 of the electric cable 30 that is electrically connected to the end opposite to the tip 110 side. It is installed. Similarly, in the other insertion hole 61, there is a terminal (not shown) to which the end of the electric cable 30 of the power take-out cable 100b opposite to the tip 110 is electrically connected. It is arranged.

In order to extract electric power using the plug receiving device 200, one terminal 50 of the pair of terminals 50 provided on the secondary side of one breaker of the switchboard is connected to the tip 110 of the power extraction cable 100a. The conductor constituting member 20 of the tip portion 110 is electrically connected by sucking the suction portion 10, and the tip of the tip portion 110 is sucked by sucking the suction portion 10 of the tip portion 110 of the power extraction cable 100b to the other terminal 50. The conductor constituting member 20 of the portion 110 is electrically connected. As a result, the plug receiving portion 60 of the plug receiving device 200 can be used as an expansion plug receiving portion (an expansion outlet).
Then, by inserting a pair of terminals of a power plug of an electric device (not shown) into the insertion holes 61 and 62 (receiving the power plug in the plug receiving portion 60), the conductor constituting member 20, the conductor 31 and the plug receiving portion. Electric power can be supplied to the electric device via 60. That is, the electric power taken out from the switchboard using the plug receiving device 200 can be used in an electric device having a power plug.

FIG. 5 is a schematic diagram of the electric device 300 according to the first embodiment. In FIG. 5, the power extraction cable 100 has a perspective structure, and the power failure notification unit 72 and the operation unit 71 each have a block configuration.
The electrical device 300 according to the present embodiment is electrically connected to the power extraction cable 100 according to the present embodiment and a conductor portion (for example, the conductor constituent member 20) via the electrical cable 30. And an operation unit 71 that operates by electric power supplied via the cable 30.
The electric device 300 is different from the plug receiving device 200 in that an operating unit 71 is connected to the other end side of the pair of power take-out cables 100 instead of the plug receiving unit 60, and has a power failure notification unit 72. The point is also different from the plug receiving device 200, but the other points are the same as the plug receiving device 200.
The operation unit 71 is not particularly limited as long as it is a device that consumes power and operates. For example, an entrance lamp (inner entrance lamp), a disaster prevention device, a security device, an aroma stand, and the like can be exemplified as the operation unit 71.
In addition, it has the terminal 50 by confirming whether the operation | movement part 71 operate | moves in the state which connected the pair of electric power extraction cables 100a and 100b to the terminal 50 similarly to the case where the plug receiving instrument 200 is utilized. It is possible to confirm whether or not power is supplied to the breaker (energization test).

Furthermore, the electric device 300 may include a power failure notification unit 72, for example.
The power failure notification unit 72 notifies that power supply to at least one of the conductor 31 of the power extraction cable 100a and the conductor 31 of the power extraction cable 100b is turned off. That is, the power failure notification unit 72 detects and notifies that a power failure has occurred or that the conductor constituent member 20 and the terminal 50 at the distal end portion 110 have poor conduction.
Although the specific configuration of the power failure notification unit 72 is not particularly limited, for example, the power failure notification unit 72 is supplied to both the lead wire 31 of the power take-out cable 100a and the lead wire 31 of the power take-off cable 100b at the time of the power failure. A rectifier circuit that generates a direct current using the generated power, a power storage unit that stores power using the direct current generated by the rectifier circuit, and a notification operation (for example, a light emitting operation) using the power supplied from the power storage unit Power failure detection that starts power supply from the power storage unit to the notification unit when power supply to at least one of the notification unit to be performed and the conductive line 31 of the power extraction cable 100a and the conductive line 31 of the power extraction cable 100b is turned off And a circuit.
Therefore, when the power supply to at least one of the conducting wire 31 of the power take-out cable 100a and the conducting wire 31 of the power take-out cable 100b is turned off, the notifying unit performs a notifying operation by the power supplied from the power storage unit ( For example, a light emission operation) is performed.
In addition, the alerting | reporting part of the power failure alerting | reporting part 72 functions also as an emergency light which does not require a dry cell, when performing light emission operation | movement.

According to the first embodiment as described above, the conductor constituent member (conductor portion) 20 of the power take-out cable 100 penetrates the suction portion 10 and the one end portion 21 of the conductor constituent member 20 is the suction portion. 10, the one end portion 21 is in contact with the terminal 50 and electrically connected in the suction state in which the suction portion 10 is attracted to the terminal 50.
For this reason, since it is not necessary to electrically connect the terminal 50 and the electric cable 30 using a magnet, the electrical continuity between the terminal 50 and the electric cable 30 is affected by the electric resistance of the magnet constituting the attracting portion 10. I can not.
Therefore, good electrical continuity between the terminal 50 and the electric cable 30 can be easily realized. Further, since an inexpensive farite magnet is sufficient as the magnet constituting the attracting portion 10, the attracting portion 10, and thus the power extraction cable 100 can be manufactured at a low cost.

<Modification 1>
FIG. 6A is a cross-sectional view showing the distal end portion of the power extraction cable 100 according to the first modification.
The power take-out cable 100 according to the modified example 1 is different from the power take-out cable 100 according to the first embodiment in the points described below, and otherwise the power take-out cable according to the first embodiment. The configuration is the same as 100.

In the first modification, the conductor portion embedded in the suction portion 10 and penetrating through the suction portion 10 is constituted by, for example, the conductor constituent member 20 and one end portion 31 a of the conducting wire 31.
And the front-end | tip part of the one end part 31a of the conducting wire 31 is contacting with the other end part 22 of the conductor structural member 20, and is electrically connected inside the adsorption | suction part 10. FIG.

  In addition, the diameter (for example, diameter) of the conductor structural member 20 is set to more than half of the diameter (diameter) of the adsorption | suction part 10, for example. And the end surface of the one end part 21 becomes the recessed part 21a which comprises a recessed curved surface shape with the recessed part 11a, for example. The diameter here is not limited to the diameter. For example, when the conductor constituent member 20 has a rectangular column shape with a rectangular cross section, the equivalent circle diameter of the conductor constituent member 20 is the diameter of the conductor constituent member 20.

Further, the diameter of the conductor constituting member 20 is larger than the diameter of the one end portion 31 a of the conducting wire 31.
That is, in the case of this modification, the conductor portion includes a first portion including the one end portion 21 (for example, the conductor constituting member 20) and a second portion interposed between the first portion and the electric cable 30 (for example, And one end 31a) of the conducting wire 31 exposed from the electric cable 30. And the 1st part (conductor constituent member 20) is formed larger diameter than the 2nd part (one end part 31a).
Thereby, since the area of the one end part 21 can be sufficiently secured, the contact area between the conductor constituent member 20 and the terminal 50 can be sufficiently secured, and good electrical conductivity between the conductor constituent member 20 and the terminal 50 can be realized. it can.

  The through hole 10a of the suction portion 10 has a distal end portion (portion that houses the conductor component member 20) having a larger diameter than a proximal end portion (portion that houses the one end portion 31a of the conducting wire 31). ing.

<Modification 2>
FIG. 6B is a cross-sectional view showing the distal end portion of the power extraction cable 100 according to the second modification.
The power take-out cable 100 according to the modified example 2 is different from the power take-out cable 100 according to the first embodiment described above in the points described below, and is otherwise the power take-out cable according to the first embodiment. The configuration is the same as 100.

In the modified example 2, the conductor part is embedded in the adsorption part 10 and penetrates the adsorption part 10, and the end face of the one end part 11 of the adsorption part 10 is larger in diameter than the conductor component member 20. (For example, the recessed part 11a) and the large diameter part 23 arrange | positioned.
The large diameter portion 23 is in contact with the one end portion 21 of the conductor constituting member 20 and is electrically connected to the one end portion 21. The large diameter portion 23 is preferably fixed to the one end portion 21 by soldering or the like.
Although the shape of the large diameter part 23 is not specifically limited, For example, it is formed in dome shape, such as a hemisphere, and is arrange | positioned along the recessed part 11a and the one end part 21 of the conductor structural member 20 (in the state of surface contact). Yes.
The large diameter portion 23 is made of a material having good conductivity. As a material constituting the large diameter portion 23, for example, a metal material such as copper, iron, stainless steel, and aluminum is preferably used. Moreover, it is preferable that the large diameter part 23 is comprised with the electroconductive magnetic body (for example, magnetic body metals, such as 400 type stainless steel and steel materials) adsorb | sucked with a magnet.
The large diameter portion 23 is fixed to the concave portion 11 a of the suction portion 10 and the one end portion 21 of the conductor constituting member 20. Although the fixing method of the large diameter part 23 with respect to these is not specifically limited, For example, adhesion fixation etc. are employable.
In the case of this modification, the large-diameter portion 23 comes into contact with the terminal 50 (for example, the head 52b of the fixed screw 52) by the suction portion 10 attracting to the terminal 50 (for example, the fixed screw 52). And electrically connected together. That is, in the case of this modification, one end of the conductive portion is configured by the large diameter portion 23.

That is, in the case of this modification, the conductor portion includes a first portion including one end portion (for example, the large diameter portion 23) and a second portion (for example, a conductor configuration) interposed between the first portion and the electric cable 30. The first portion (large-diameter portion 23) is formed to have a larger diameter than the second portion (conductor-constituting member 20).
Thereby, since the area of one end part (large diameter part 23) can fully be ensured, the contact area of a conductor part and the terminal 50 can fully be ensured, and favorable electroconductivity with a conductor part and the terminal 50 is implement | achieved. Can do.

[Second Embodiment]
FIG. 7 is a view showing the power take-out cable 100 according to the second embodiment. FIG. 7A shows a state before the conductor portion (for example, the conductor constituting member 20) is attached to the suction portion 10. FIG. 7 (b) shows a state in which the conductor portion is attached to the suction portion 10, and FIG. 7 (c) shows a screwing depth of the conductor portion with respect to the suction portion 10 so that the protrusion (one end portion 21) is hidden by the suction portion 10. Each adjusted state is shown. FIG. 8 is a perspective view of the conductor portion.
The power take-out cable 100 according to the present embodiment is different from the power take-out cable 100 according to the first embodiment in the points described below, and otherwise the power according to the first embodiment. The configuration is the same as that of the take-out cable 100.

As shown in FIGS. 7A, 7B, or 7C, the suction portion 10 is formed in a female screw shape. Specifically, for example, a female screw constituent member 80 such as a helicate is inserted into the through hole 10 a of the suction portion 10, and the female screw constituent member 80 is connected to the inner peripheral surface of the through hole 10 a in the suction portion 10. It is fixed (adhesion fixing etc.). Thereby, the adsorption | suction part 10 comprises the internal thread as a whole. In addition, as the female thread component member 80, a sleeve (insert nut) having an internal thread cut therein may be used instead of the helisert. Further, the end of the female screw constituting member 80 on the one end 11 side of the suction portion 10 is exposed from the one end 11 of the suction portion 10 and is located closer to the other end 12 than the recess 11a. Is preferred.
However, the female screw constituting member 80 may not be provided in the suction portion 10, and a female screw may be directly cut in the suction portion 10, and the female screw may penetrate the suction portion 10.

On the other hand, the conductor constituent member 20 is configured to include a rod-like male screw portion 25 in which a screw thread to be screwed with the female screw constituent member 80 is formed on the outer peripheral surface. One end portion 21 located on the distal end side of the male screw portion 25 is a protrusion that fits into the notch of the head 52b (see FIG. 3) of the fixing screw 52.
That is, in the case of this embodiment, the one end portion 21 of the conductor portion (conductor constituent member 20) includes a protrusion that fits into the notch of the head portion 52b of the screw (fixing screw 52) constituting the terminal 50.
The one end portion 21 protrudes coaxially with the male screw portion 25 from the front end surface 25 a of the male screw portion 25.
In addition, it is preferable that the front end surface 25a of the male screw portion 25 is formed in a planar shape orthogonal to the axial center of the male screw portion 25, and a protrusion (one end portion 21) protrudes from the front end surface 25a. It is.

Here, the fixing screw 52 is, for example, a plus screw, and in this case, a cross-shaped cut groove) is formed in the head 52b. For this reason, as shown in FIG. 8, for example, the one end portion 21 has a cross-shaped projection shape, that is, a shape like the tip portion of a plus driver.
More specifically, the one end portion 21 is disposed on the same plane with respect to the pair of wall-like portions 211 and 212 that constitute one aggregate wall portion, and the wall-like portions 211 and 212. A pair of wall-like portions 213 and 214 that are orthogonal to each other and are arranged on the same plane and constitute one aggregate wall portion are included. The collective wall portion constituted by the wall-like portions 211 and 212 and the collective wall portion constituted by the wall-like portions 213 and 214 intersect (orthogonal) in a cross shape. It is preferable that the intersecting line of these two aggregate wall portions is disposed on the extension of the axial center of the male screw portion 25.
Moreover, it is preferable that the front end surface 21b of the one end 21 is formed in a tapered shape. That is, for example, the distal ends of the wall-like portions 211, 212, 213, and 214 are positioned on the distal end side as they approach the intersection line of the two aggregate wall portions (the proximal end side as they move away from the intersection line of the two aggregate wall portions) It is tilted to be located.
Of the pair of grooves (grooves orthogonal to each other) constituting the cross-shaped cut of the head 52b, at least the tip ends of the wall-shaped portions 211 and 212 are fitted into one groove, and the wall is formed against the other groove. At least the tip portions of the shape portions 213 and 214 are fitted.

  However, the fixing screw 52 may be a minus screw, and in this case, a minus-shaped cut (groove) is formed in the head 52b. The shape of the one end 21 corresponding to this case can be a plate-like (wall-like) protrusion, that is, a shape like the tip of a minus driver.

In order to enable the user to easily grasp the conductor component member 20 when the user screws the male screw portion 25 into the suction portion 10 on the proximal end side portion of the conductor component member 20. A knob component 90 is provided.
Although the shape of the knob component 90 is not particularly limited, as an example, the knob component 90 includes a large diameter portion 91 and a small diameter portion 92 having a smaller diameter than the large diameter portion 91, and the large diameter portion 91. A stepped portion 94 is formed at the boundary between the small diameter portion 92 and the small diameter portion 92. The user of the power take-out cable 100 picks the large-diameter portion 91 of the knob constituting member 90, thereby rotating the knob constituting member 90 and the conductor constituting member 20 integrally, and the male screw portion 25 to the suction portion 10. It can be screwed together.
The shapes of the large diameter portion 91 and the small diameter portion 92 are not particularly limited. As an example, the large diameter portion 91 and the small diameter portion 92 are each formed in a columnar shape, and the large diameter portion 91 and the small diameter portion 92 are arranged coaxially with each other. However, the large-diameter portion 91 may have a prismatic shape or the like. If the small diameter portion 92 can enter the case 40 through the insertion hole 42a while rotating together with the male screw portion 25 when the male screw portion 25 is screwed to the suction portion 10, The shape is not particularly limited.
The knob constituting member 90 is made of an insulating material such as resin.

The conductor constituting member 20 has, for example, an insertion portion 26 located on the proximal end side of the male screw portion 25. The insertion portion 26 is, for example, a rod-shaped protrusion having a smaller diameter than the male screw portion 25 and is disposed coaxially with the male screw portion 25.
In the case of the present embodiment, the entire conductor constituting member 20 including the male screw portion 25, the one end portion 21 and the insertion portion 26 is integrally formed of a metal material such as copper, iron, stainless steel, or aluminum. .
In the case of this embodiment, for example, the proximal end portion of the insertion portion 26 is the other end portion 22 of the conductor constituting member 20.

The knob constituting member 90 is formed with an insertion hole 90a into which the insertion portion 26 is inserted and fixed. The insertion hole 90 a is formed, for example, from the end surface of the small diameter portion 92 opposite to the large diameter portion 91 side to the inside of the large diameter portion 91.
Further, the knob constituting member 90 is formed with an insertion hole 90b through which one end of the conducting wire 31 is inserted. The insertion hole 90b is formed, for example, from the end of the large diameter portion 91 opposite to the small diameter portion 92 side to the insertion hole 90a. That is, the insertion hole 90 a and the insertion hole 90 b communicate with each other, and the insertion hole 90 a and the insertion hole 90 b penetrate the knob component 90.
The insertion portion 26 of the conductor constituting member 20 is fixedly inserted into the insertion hole 90a. For example, the insertion portion 26 is bonded and fixed to the inner peripheral surface of the insertion hole 90 a in the knob component 90.
In addition, one end portion of the conducting wire 31 of the electric cable 30 is inserted into the insertion hole 90b and is in contact with the proximal end portion of the insertion portion 26 (the end portion opposite to the male screw portion 25 side). Therefore, it is electrically connected to the insertion portion 26. Thereby, the conducting wire 31 is electrically connected to the one end portion 21 of the conductor constituting member 20 via the insertion portion 26 and the male screw portion 25. One end portion of the conducting wire 31 is preferably fixed to the base end portion of the insertion portion 26 by soldering or the like.
In addition, it is preferable that the conducting wire 31 is not exposed to the outside because the distal end of the covering portion 32 of the electric cable 30 is in contact with the outer surface of the proximal end side of the large diameter portion 91. The periphery of the conducting wire 31 led out of the case 40 from the insertion hole 42a is covered with an insulating cover member (not shown) at the boundary between the outer surface of the large diameter portion 91 and the tip of the covering portion 32. It is also preferable.

  In the present embodiment, the inner diameter of the insertion hole 42 a of the case 40 is larger than the outer diameter of the male screw portion 25, and therefore larger than the inner diameter of the female screw component member 80. The inner diameter of the insertion hole 42a is preferably smaller than the inner diameter of the through hole 10a.

To assemble the power extraction cable 100, the one end portion 21 of the conductor constituting member 20 is inserted into the through hole 10a from the insertion hole 42a side, and the male screw portion 25 is screwed to the female screw constituting member 80. That is, the conductor constituting member 20 is indirectly screwed to the suction portion 10.
Thus, since the conductor constituting member 20 is attached to the suction portion 10 by the screw structure, the power take-out cable 100 can be easily assembled, and the power take-out cable 100 can be manufactured at low cost.
As shown in FIG. 7B, by screwing the male screw portion 25 with the female screw constituting member 80, the one end portion 21 protrudes from the concave portion 11a of the suction portion 10, and for example, The stepped portion 94 at the boundary between the diameter portion 91 and the small diameter portion 92 comes into contact with the outer surface of the proximal end side blocking portion 42 of the case 40. Accordingly, the small diameter portion 92 enters the case 40 and is not visible from the outside.

  In the case of this embodiment, the one end portion 11 of the suction portion 10 is fixed to the fixing screw 52 by bringing the distal end portion (the portion on the one end portion 11 side) of the distal end portion 110 of the power extraction cable 100 closer to the terminal 50 (see FIG. 3). The one end portion 21 of the conductor constituting member 20 comes into contact with the head portion 52b. At this time, by rotating the tip portion 110 about the axis, the projection shape of the one end portion 21 and the shape of the notch of the head portion 52b are aligned, and the one end portion 21 is fitted into the notch of the head portion 52b. it can. Thereby, the one end part 21 and the head part 52b can be made into a stable contact state, and the one end part 21 and the head part 52b can be favorably conducted.

Here, in the case of this embodiment, the conductor component member 20 is screwed (for example, indirectly screwed) to the suction portion 10. For this reason, as shown in FIG.7 (c), by rotating the conductor structural member 20 with respect to the adsorption | suction part 10 in the reverse direction when screwing the conductor structural member 20 with respect to the adsorption | suction part 10, as shown in FIG. The one end portion 21 can be retracted into the suction portion 10. That is, the screwing depth of the conductor constituent member 20 with respect to the suction portion 10 can be adjusted so that the protrusion (one end portion 21) of the conductor constituent member 20 is hidden by the suction portion 10.
In this state, even when the adsorbing portion 10 is adsorbed to the head portion 52b of the fixing screw 52, the one end portion 21 of the conductor constituting member 20 is brought into a non-contact state with respect to the head portion 52b. 50 is in a non-conductive state.
Therefore, when it is not necessary to take out electric power from the terminal 50 using the electric power extraction cable 100, as shown in FIG.7 (c), the conductor structural member 20 and the terminal 50 can be made into a non-conduction state.

Thus, in the case of the present embodiment, the conductor portion (conductor constituent member 20) has the first position where the one end portion 21 contacts the terminal 50 in the suction state (the position in the state of FIG. 7B) and the suction portion. In the state, the one end portion 21 can be moved forward and backward relative to the suction portion 10 at a second position where the one end portion 21 is not in contact with the terminal 50 (the position in the state of FIG. 7C) (for example, the shaft of the male screw portion 25) It can be moved forward and backward in the direction).
More specifically, for example, the conductor portion (conductor constituent member 20) is screwed directly or indirectly to the suction portion 10 so as to be able to advance and retreat relative to the suction portion 10 ( In the illustrated example, the conductor constituent member 20 is indirectly screwed to the suction portion 10 via the female screw constituent member 80).

Note that the operation of rotating the conductor constituent member 20 relative to the suction portion 10 in the opposite direction to the case where the conductor constituent member 20 is screwed to the suction portion 10 is also performed by adjusting the large diameter portion 91 of the knob constituent member 90. It can be easily performed in a muddy state.
In order to insulate the conductor constituent member 20 and the terminal 50 more reliably when the conductor constituent member 20 is in the second position, an insulating film (insulating layer) made of an insulating material is formed in the recess 11a. May be. In this case, since the adsorption part 10 is adsorbed to the terminal 50 via the insulating film, the adsorption part 10 can be prevented from directly contacting the terminal 50.

Here, for example, an identification marking portion 93 is attached to the outer peripheral surface of the small-diameter portion 92. The identification marking unit 93 is, for example, a color marking (colored blue or the like). In the small diameter portion 92, the identification marking portion 93 is provided at a position that is not visually recognized from the outside in the state of FIG. 7B and is visually recognized from the outside in the state of FIG. 7C.
Therefore, when the identification marking portion 93 is not visually recognized from the outside, it indicates that the conductor constituent member 20 and the terminal 50 are in a conductive state (that is, the conductor constituent member 20 is in the first position), and the identification marking portion 93 is externally visible. When visually recognized, it indicates that the conductor constituent member 20 and the terminal 50 are in a non-conductive state (that is, the conductor constituent member 20 is in the second position).
That is, the power take-off cable 100 according to the present embodiment is provided integrally with the conductor portion (conductor constituent member 20), and identifies which position the conductor portion is in the first position or the second position. A portion 93 is further provided.
Therefore, it is easy to identify the state in which the conductor constituent member 20 and the terminal 50 are conductive (on state) and the state in which the conductor constituent member 20 and the terminal 50 are non-conductive (off state) by the identification indicator 93. Is possible.

According to the second embodiment as described above, the following effects can be obtained in addition to the same effects as those of the first embodiment.
That is, the conductor constituent member 20 has a first position where the one end 21 comes into contact with the terminal 50 in the suction state where the suction portion 10 is sucked into the terminal 50 and a second position where the one end 21 is not in contact with the terminal 50 in the suction state. It is provided at a position so as to be able to advance and retreat relative to the suction part 10. Thereby, the conductor constituent member 20 and the terminal 50 are electrically connected to each other by moving the conductor constituent member 20 back and forth with respect to the suction portion 10 (on state), and the conductor constituent member 20 and the terminal 50 are not electrically connected. (OFF state) can be easily switched.

As mentioned above, although each embodiment was described with reference to drawings, these are illustrations of the present invention, and various configurations other than the above can also be adopted. Moreover, each said embodiment can be combined suitably in the range which does not deviate from the main point of this invention.
For example, in the second embodiment, an example in which the one end portion 21 of the conductor constituting member 20 has a protruding shape has been described. However, in the second embodiment, the shape of the one end portion 21 is the same as that of the first embodiment. Alternatively, it may be a planar shape or a concave curved surface shape.
Moreover, in 2nd Embodiment, although the electric power extraction cable 100 demonstrated the example which has the identification marking part 93, the electric power extraction cable 100 does not necessarily need to have the identification marking part 93. FIG.
Further, in the first embodiment, the shape of the one end portion 21 may be a projection shape similar to that of the second embodiment.

  Further, the components of the power take-out cable 100 do not need to be individually independent. A plurality of components are formed as one member, a component is formed of a plurality of members, one component is a part of another component, and one component is And a part of other components are allowed to overlap.

This embodiment includes the following technical ideas.
(1) An adsorbing portion that adsorbs to the terminal by magnetic force, and an end portion that penetrates the adsorbing portion and is exposed from the adsorbing portion, and in which the adsorbing portion is adsorbed to the terminal, the one end portion A power take-out cable comprising: a conductor portion that contacts the terminal and is electrically connected; and an electric cable electrically connected to the conductor portion.
(2) The said conductor part is the said adsorption | suction part in the 1st position where the said one end part contacts the said terminal in the said adsorption | suction state, and the 2nd position where the said one end part does not contact the said terminal in the said adsorption | suction state. The power take-out cable according to (1), wherein the power take-out cable is provided so as to be capable of moving forward and backward.
(3) The power take-out cable according to (2), wherein the conductor portion is screwed directly or indirectly to the suction portion so as to be able to advance and retreat relative to the suction portion.
(4) (2) or (3) further including an identification marking unit that is provided integrally with the conductor portion and identifies whether the conductor portion is in the first position or the second position. The power extraction cable described.
(5) The conductor portion includes a first portion including the one end portion, and a second portion interposed between the first portion and the electric cable, and the first portion is The power extraction cable according to any one of (1) to (4), wherein the power extraction cable is formed to have a larger diameter than the second portion.
(6) The power extraction cable according to any one of (1) to (5), wherein the one end portion of the conductor portion includes a protrusion that fits into a notch of a screw head constituting the terminal.
(7) The power extraction cable according to any one of (1) to (6), and a plug receiving portion that is electrically connected to the conductor portion via the electric cable and receives the plug. Plug receiving device.
(8) The power extraction cable according to any one of (1) to (6) and the conductor portion are electrically connected via the electric cable, and the conductor portion and the electric cable are connected from the terminal. And an operating unit that operates with electric power supplied through the electric device.

10 Adsorption part 11a Concave part 20 Conductor component (conductor part)
21 One end (one end of the conductor)
22 Other end (the other end of the conductor)
23 Large diameter part (conductor part)
25 Male thread part 30 Electric cable 31 Conductor 31a One end part (conductor part)
32 Covering part 40 Case 50 Terminal 52 Fixing screw (screw)
52b Head 60 Plug receiving portion 71 Operating portion 80 Female screw constituting member 90 Knob constituting member 93 Identification indicating portion 100, 100a, 100b Power take-out cable 200 Plug receiving device 300 Electric equipment

Claims (6)

An adsorbing part that adsorbs to the terminal by magnetic force;
In the suction state where one end portion is exposed from one end surface of the suction portion while penetrating the suction portion, and the suction portion is attracted to the terminal, the one end portion contacts the terminal and electrically A conductor part to be connected;
An electrical cable electrically connected to the conductor portion;
Equipped with a,
The conductor portion has a first position where the one end portion contacts the terminal in the suction state and a second position where the one end portion does not contact the terminal in the suction state with respect to the suction portion. It is provided to be able to move forward and backward relatively,
A power take-out cable in which an insulating film is formed on the one end face of the suction portion . The power extraction cable according to claim 1 , wherein the conductor portion is screwed directly or indirectly to the suction portion so that the conductor portion can be moved forward and backward relative to the suction portion. The electric power take-out cable according to claim 1 or 2 , further comprising an identification marking portion that is provided integrally with the conductor portion and identifies whether the conductor portion is in the first position or the second position. . The one end of the conductor part, the power take-out cable according to any one of claims 1 to 3, includes a projection that fits into the notches of the head of the screw that constitutes the terminal. The power take-out cable according to any one of claims 1 to 4 ,
A plug receiving portion that is electrically connected to the conductor portion via the electric cable and receives a plug; and
A plug receiving device comprising: The power take-out cable according to any one of claims 1 to 5 ,
An operation part that is electrically connected to the conductor part via the electric cable and that is operated by electric power supplied from the terminal via the conductor part and the electric cable;
Electrical equipment comprising.

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