JP2009300305A - Ferrite detector - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To more reliably detect the existence of ferrite attached to an electric wire. <P>SOLUTION: A guide 50 is provided to a base stand 10 so as to be capable of supporting the ferrite 60 at a prescribed set position 12. A magnet 20 is provided in a hole 22 formed in the base stand 10 so as to be movable between a near position and a distant position. When the magnet 20 is at the near position, a plurality of conductive contacts 30 are substantially linearly arranged at a spacing so as to be electrically connected in series via the magnet 20. A detection part 40 is provided, which is connected to the conductive contacts 30 provided at both the ends and detects whether or not the conductive contacts 30 are electrically connected via the magnet 20. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a technique for detecting ferrite attached to an electric wire.

  Conventionally, a method of attaching ferrite to an electric wire has been adopted as means for removing noise caused by a high-frequency current flowing in the electric wire. Urethane may be wound around the outer periphery of the ferrite attached to the electric wire.

  Conventionally, the operation for confirming the presence or absence of the ferrite as described above has been performed by the operator confirming by hand from above the urethane.

  However, since the detection by the confirmation work must rely on the judgment of the tactile sensation by the operator, there is a risk that confirmation of the presence or absence of ferrite may be uncertain.

  Then, an object of this invention is to enable it to detect more reliably the presence or absence of the ferrite attached to the electric wire.

  In order to solve the above-mentioned problem, the ferrite detection device according to the first aspect is a ferrite detection device that detects ferrite attached to an electric wire, and can support the ferrite attached to the electric wire at a predetermined set position. And a base that is movable between a proximity position close to the set position and a separated position away from the set position, and the ferrite is disposed at the set position with respect to the ferrite. A magnet disposed so as to be movable toward the proximity position by an attractive force, and disposed between the set position and the magnet, and is electrically disconnected in a state where the magnet is in the separated position. And a plurality of conductive contacts arranged at intervals so that the magnet is electrically connected through the magnet in the proximity position; The number of conductive contact comprises a detection unit for detecting whether or not electrically connected through the magnet.

  As in the ferrite detection device according to the second aspect, the base includes a positioning guide for positioning at least one of the electric wire and the ferrite so that the ferrite is disposed to face the magnet. You may have.

  When targeting a plurality of ferrite-attached electric wires, as in the ferrite detection device according to the third aspect, a plurality of the magnets are provided corresponding to the plurality of ferrites, and the plurality of conductive contacts are The plurality of conductive contacts are arranged to be electrically connected in series with the plurality of magnets in the proximity positions with a plurality of intervals corresponding to the plurality of magnets. It may be.

  As in the ferrite detector according to the fourth aspect, the magnet may be formed in a substantially spherical shape.

  As in the ferrite detection device according to the fifth aspect, the plurality of conductive contacts include at least one first conductive contact having a magnetic property that is not attracted by the magnet's attracting force, and the magnet's attracting force. At least one second conductive contact having a magnetic property to be attracted by the one end, and the magnet is swingably connected to the second conductive contact with its own attracting force; It is movable between a position close to the set position and a position far from the set position, and the ferrite is moved toward the set position by the adsorption force with respect to the ferrite in a state where the ferrite is disposed at the set position. You may have the other end part which can contact a 1st electroconductive contactor.

  According to the ferrite detection device according to the first aspect, when the ferrite portion of the electric wire is disposed at the set position, the magnet moves to the close position, and the plurality of conductive contacts are electrically connected via the magnet. It becomes a state. And by detecting this with a detection part, the presence or absence of a ferrite can be checked and the presence or absence of the ferrite attached to the electric wire can be made more reliable.

  Moreover, according to the ferrite detection apparatus which concerns on a 2nd aspect, the relative position of a ferrite and a magnet can be determined with a positioning guide, and the presence or absence of a ferrite can be detected more reliably.

  Moreover, according to the ferrite detection apparatus which concerns on a 3rd aspect, the presence or absence of a ferrite can be more reliably detected also in the electric wire which attached the some ferrite.

  Moreover, according to the ferrite detection apparatus which concerns on a 4th aspect, since a magnet is a substantially spherical shape, when a magnet moves, a catch is suppressed and the presence or absence of a ferrite can be detected more reliably.

  Moreover, according to the ferrite detection apparatus according to the fifth aspect, since one end of the magnet is connected to the second conductor contactor, when the other end of the magnet is attracted and moved by the set of ferrite, the entire magnet It can be moved with a smaller force to move the. Moreover, the movement mode of the magnet is stabilized, and the hooking of the magnet is suppressed. For this reason, the presence or absence of ferrite can be detected more reliably.

  Hereinafter, a ferrite detection device according to an embodiment of the present invention will be described in detail with reference to the drawings.

{First embodiment}
Hereinafter, the ferrite detection device according to the first embodiment will be described.

  1 is a front view of the ferrite detection device according to the first embodiment, FIG. 2 is a plan view of the ferrite detection device according to the first embodiment, FIG. 3 is a side view of the ferrite detection device according to the first embodiment, and FIG. FIG. 5 is a diagram showing the shape of a magnet according to the first embodiment, and FIG. 5 is a diagram showing a ferrite detection operation according to the first embodiment.

  The ferrite detection device according to the first embodiment includes a base 10, a magnet 20, a conductive contact 30, a detection unit 40, and a guide 50.

  Here, an example of a detection target of the ferrite detection device will be described. The ferrite-attached electric wire to be detected includes an electric wire 62 and a ferrite 60 (see FIG. 5). The ferrite 60 is formed in a substantially annular shape, and is attached to the electric wire 62 with the electric wire 62 inserted therein. For example, the ferrite 60 is attached as follows. First, a resin case is prepared in which a substantially annular member is vertically divided in the radial direction so that the resin case can be opened and closed at one end portion of the outer peripheral portion thereof, and the resin case is similarly formed in a shape vertically divided in the radial direction. Fit into. And after arrange | positioning the electric wire 62 in the state which opened the resin case and the ferrite 60, the resin case and the ferrite 60 are closed. Thereby, the ferrite 60 is attached to the electric wire 62 using the resin case. Here, the sheet-like urethane 64 is attached so as to cover the entire two ferrites 60 attached to the electric wire 62. The urethane 64 is maintained in a state where the ferrite 60 is covered with an adhesive, an adhesive, an adhesive tape, or the like.

  Here, the description returns to the ferrite detection device itself. The base 10 is configured to be able to support the ferrite 60 attached to the electric wire 62 at a predetermined set position 12. Here, the base 10 has a substantially rectangular parallelepiped appearance, and is configured such that the ferrite 60 is disposed at the set position 12 on one main surface side (upper surface side) of the base 10.

  Further, here, a guide 50 is attached to one main surface of the base 10, and the ferrite 60 is placed at a predetermined set position 12 by one main surface of the base 10 and the guide 50 provided on the base 10. I support it.

  More specifically, a pair of guides 50 are provided so as to protrude from both ends of one main surface of the base 10.

  An interval is provided between the pair of guides 50 so that the ferrite 60 can be disposed. Here, since the urethane 64 is attached to the outer periphery of the two ferrites 60, an interval at which the two ferrite 60 and urethane 64 parts can be disposed is provided between the pair of guides 50.

  Each guide 50 is formed in a substantially plate shape, and a positioning groove 56 is formed from a tip portion thereof. The positioning groove 56 is formed in a substantially trapezoidal opening shape in which the width dimension is gradually reduced from the distal end side toward the proximal end side (base side), and a portion of the portion covered with the urethane 64 of the electric wire 62 in the middle thereof. It is formed to be smaller than the diameter.

  And the set of the electric wire 62 to which the ferrite 60 is attached is made as follows. First, the ferrite 60 portion is disposed between the pair of guides 50, and the portions covered with the urethane 64 of the electric wires 62 on both sides of the ferrite 60 are fitted into the positioning grooves 56 of the pair of guides 50. At this time, the portion of the electric wire 62 covered with the urethane 64 can be easily fitted into the positioning groove 56 through an opening larger than its diameter. In a state where the electric wire 62 is fitted in the positioning groove 56, the outer periphery of the portion covered with the urethane 64 of the electric wire 62 abuts on both inclined surfaces of the positioning groove 56, and the positioning groove 56 is positioned in the width direction. . Further, the ferrite 60 and the urethane 64 are sandwiched between the pair of guides 50, and the ferrite 60 is positioned at a predetermined set position 12 in the longitudinal direction of the electric wire 62. Further, the ferrite 60 and urethane 64 portions are supported on the main surface of the base 10 so as to be placed, whereby the ferrite 60 is positioned in the vertical direction.

  In this way, the one main surface of the base 10 and the pair of guides 50 position and hold the electric wire 62 and the ferrite 60 at the predetermined set position 12 so that the ferrite 60 is disposed facing the magnet 20. It is configured as a positioning guide.

  Here, the shape of the positioning guide constituted by the guide 50 and one main surface of the base 10 is not limited to the above-described form, and the ferrite 60 is disposed at a predetermined set position 12. What is necessary is just to be able to position so that it may oppose with the magnet 20 via one main surface. For example, one main surface of the base 10 may be formed in a hollow shape corresponding to the outer peripheral shape of the ferrite 60 and the urethane 64.

  Further, in the base 10, a magnet 20 disposed so as to be able to move close to and away from the set position 12 is electrically connected via the magnet 20 when the magnet moves close to the set position 12. A plurality of conductive contacts 30 are provided. Two magnets 20 are provided corresponding to two target ferrites 60 and are movably disposed in the holes 22 formed in the base 10.

  More specifically, a hole 22 is formed in the base 10 at a position corresponding to the two ferrites 60 disposed at the set position 12, here, substantially directly below the center of each ferrite 60. Yes.

  The hole 22 is formed in a hole shape that is long in the perspective direction with respect to the set position 12, and is larger in size in the plane direction orthogonal to the perspective direction than the magnet 20. Here, the hole 22 is formed in a substantially rectangular parallelepiped space that is long in the perspective direction. And the magnet 20 is arrange | positioned so that the inside of the hole part 22 can move along a perspective direction.

  In each of the two holes 22, the magnet 20 is disposed so as to be movable between a proximity position close to the set position 12 and a separated position farther from the set position 12 than the proximity position. Here, the position where the magnet 20 moves to the set position 12 side in the hole 22 and contacts the conductive contact 30 is the proximity position, and the magnet 20 is closer to the set position 12 than the proximity position in the hole 22. The state of moving to a remote end and in contact with the end is the separation position.

  Here, the shape of the hole 22 is not limited to a substantially rectangular parallelepiped space, and the magnet 20 may be formed so as to be movable between the proximity position and the separation position. For example, it may be formed in a substantially cylindrical space shape.

  The magnet 20 is a general permanent magnet, and is formed in a substantially spherical shape here (see FIG. 4). By using the substantially spherical magnet 20, the magnet 20 is restrained from being caught in the hole 22, and can move with a small resistance.

  Here, the shape of the magnet 20 is not limited to a substantially spherical shape, and may be a polyhedron such as a cube, for example.

  The magnet 20 is located at the separated position by its own weight when the ferrite 60 is not disposed at the set position 12, and is separated from the separated position by the attraction force with respect to the ferrite 60 when the ferrite 60 is disposed at the set position 12. It has a magnetic force and weight that can move to a close position.

  The plurality of conductive contacts 30 are disposed between the set position 12 and the magnet 20, and are electrically disconnected when the magnet 20 is in the separated position, and the magnet 20 is in the close position. In order to be in an electrically connected state via the magnet 20, they are arranged with a space therebetween. In other words, the plurality of conductive contacts 30 are arranged so that the magnets 20 are in contact with the two conductive contacts 30 adjacent to each other with a gap corresponding to each magnet in a state where the magnets 20 are in close proximity. The magnet 20 is disposed with a narrower interval than the width of the magnet 20.

  More specifically, each conductive contact 30 is formed of a conductive member, and here is formed in a substantially square plate shape by a metal plate or the like. In this embodiment, the conductive contact 30 is attracted by the attractive force of the magnet 20 to prevent the conductive contact 30 from being electrically connected when the ferrite 60 is not disposed at the set position 12. It is formed of a member having a magnetic property that does not.

  Here, the conductive contact 30 is not limited to a substantially rectangular plate shape, and may be formed in a substantially rectangular parallelepiped shape, for example. In addition, the conductive contact 30 may be formed with a recess corresponding to the shape of the magnet 20 so that the conductive contact 30 fits into the conductive contact 30 when the magnet 20 is in the proximity position.

  Further, the plurality (three in this case) of the conductive contacts 30 are provided with a gap at a position corresponding to the magnet 20 at the close position (here, a position almost directly above the magnet 20 at the separated position). Are arranged in a substantially straight line.

  In a state where each magnet 20 is in a separated position in the hole 22, the three conductive contacts 30 are electrically separated from each other with a gap therebetween, that is, in an electrically disconnected state. Become. Further, when any one of the magnets 20 moves to a close position in the hole 22, the magnet 20 comes into contact with two conductive contacts 30 provided adjacent to each other with a gap between them. As a result, the two adjacent conductive contacts 30 are electrically connected via the magnet 20. Further, when both of the two magnets 20 move to the close position, adjacent conductive contacts 30 are electrically connected via the magnet 20 in each of the two gaps, and the three conductive contacts 30 are It is in a state of being electrically connected in series via the magnet 20.

  The detection unit 40 includes a power source 42 and a light bulb 44 connected in series, and among the three conductive contacts 30 arranged substantially linearly, the detection unit 40 is electrically in series with the conductive contacts 30 at both ends thereof. It is connected to the. And the detection part 40 detects whether the some electroconductive contactor 30 was electrically connected through the magnet 20 with the presence or absence of electricity supply, and the alerting | reporting output of the detection result with the light bulb 44 is carried out.

  That is, in a state where any one of the magnets 20 is in a separated position in the hole portion 22, the conductive contacts 30 at both ends are electrically disconnected from each other, and the detection unit 40 and the plurality of conductive contact members 30. Since the circuit including these is not energized, the light bulb 44 is not lit. In addition, when the two magnets 20 are close to each other in the hole 22, the conductive contacts 30 at both ends are electrically connected, and the detection unit 40 and the plurality of conductive contacts 30 are connected. The included circuit is energized by the power source 42 and the light bulb 44 is lit.

<Operation>
The operation of the ferrite detection device according to the first embodiment will be described.

  First, in the initial state, the magnet 20 is located at a separated position by its own weight, and the plurality of conductive contacts 30 are electrically disconnected.

  In this state, the ferrite 60 attached to the electric wire 62 is disposed at a predetermined set position 12 so as to face the magnet 20 by a pair of guides 50 and one main surface of the base 10.

  When the two ferrites 60 are attached to the electric wire 62 disposed at the set position 12 without any defect, the magnets 20 disposed immediately below the ferrites 60 are separated from each other in the hole 22 by the attractive force with respect to the ferrites 60. Move from position to close position. And each magnet 20 contacts the electroconductive contactor 30 adjacently provided on both sides of the clearance gap corresponding to each. As a result, a plurality of adjacent conductive contacts 30 are electrically connected via the magnets 20.

  In this way, in the circuit including the plurality of conductive contacts 30 and the detection unit 40, the current flows by the power source 42 and the light bulb 44 is lit, so that the ferrite 60 is attached to the electric wire 62 without any defects. Is notified.

  When at least one ferrite 60 is not attached to the electric wire 62 arranged at the set position 12, the magnet 20 arranged almost immediately below the portion where the ferrite 60 is not attached remains in the separated position by its own weight. In the gap corresponding to the magnet 20, the two conductive contacts 30 are kept in a disconnected state.

  Therefore, the circuit including the plurality of conductive contacts 30 and the detection unit 40 notifies that there is a portion where the light bulb 44 is not lit and the ferrite 60 is not attached to the electric wire 62 because no current flows.

  According to the present embodiment, when the ferrite 60 attached to the electric wire 62 is disposed at the predetermined set position 12, the magnet 20 moves to the close position by the adsorption force with respect to the ferrite 60, and the plurality of conductive contacts 30 are magnets. It will be in the state electrically connected through 20. Then, the presence or absence of the ferrite 60 attached to the electric wire 62 is detected as compared with a method in which this is detected by the detection unit 40 connected to the conductive contact 30 and the presence or absence of the ferrite 60 is checked by touch according to the lighting state of the light bulb 44. Can be confirmed more reliably.

{Second Embodiment}
A ferrite detection device according to the second embodiment will be described.

  6 is a front view of the ferrite detection device according to the second embodiment, FIG. 7 is a plan view of the ferrite detection device according to the second embodiment, FIG. 8 is a side view of the ferrite detection device according to the second embodiment, and FIG. FIG. 10 is a diagram showing a shape of a magnet according to the second embodiment, and FIG. 10 is a diagram showing a ferrite detection operation according to the second embodiment. In the description of the present embodiment, differences from the first embodiment will be mainly described, and the same components as those in the first embodiment will be denoted by the same reference numerals and description thereof will be omitted.

  In the ferrite detection device of the present embodiment, the first conductive contact 132, the second conductive contact 134, the magnet 120, and the hole are used instead of the conductive contact 30, the magnet 20, and the hole 22 of the first embodiment. Part 122 is provided. Here, the first conductive contact 132 is formed of a member having a magnetic property that is not attracted by the attracting force of the magnet 120, and the second conductive contact 134 has a magnetic property that is attracted by the attracting force of the magnet 120. It is formed with the member which has.

  The magnet 120 moves between one end portion that is swingably connected to the second conductive contact 134 by its own attraction force, and a proximity position and a separation position in the hole portion 122 provided in the base 10. And the other end portion which can be arranged. Here, the magnet 120 is a permanent magnet formed in a substantially rectangular plate shape that is long in the direction connecting the one end and the other end (see FIG. 9).

  Here, the shape of the magnet 120 is not limited to a substantially rectangular plate shape, and may be formed, for example, in a substantially prismatic shape or a substantially rectangular parallelepiped shape.

  In the state where the ferrite 60 is not disposed at the set position 12, the other end of the magnet 120 is separated from the set position 12 due to its own weight, and is located at a separated position in the hole 122. In the state where 60 is disposed, the other end portion approaches the set position 12 from the separated position by the adsorption force with respect to the ferrite 60, and the proximity position where the first conductive contact 132 and the second conductive contact 134 are in contact with each other. It has a magnetic force and weight so that it can be moved.

  The hole 122 is formed to be larger than one main surface of the magnet 120 formed in a substantially square plate shape in a plane orthogonal to the perspective direction with respect to the set position 12, and in the perspective direction with respect to the set position 12. The dimension of the hole 122 is shorter than the dimension from one end of the magnet 120 to the other end. Here, the hole 122 is formed in a substantially rectangular parallelepiped space. Further, when the other end portion of the magnet 120 is in the separated position, the other end portion contacts the bottom surface of the hole portion 122, and the magnet 120 is inclined at an acute angle with the surface orthogonal to the perspective direction.

  The first conductive contact 132 and the second conductive contact 134 are disposed between the set position 12 and the magnet 120. Here, two first conductive contacts 132 are disposed on both sides of one second conductive contact 134. Further, the first conductive contact 132 and the second conductive contact 134 are arranged so as to be connected in a substantially straight line with a gap at a position corresponding to the magnet 120 in the close position.

  The first conductive contact 132 and the second conductive contact 134 are electrically disconnected when the other end of the magnet 120 is in the separated position, and the other end of the magnet 120 is in the close position. In a certain state, the magnet 120 is spaced from each other so that the magnet 120 contacts and is electrically connected to both of the first conductive contact 132 and the second conductive contact 134 that are adjacent to each other. It is installed.

  More specifically, such an interval is formed by the first conductive contact 132 and the second conductive contact 134 to be shorter than the length between one end and the other end of the magnet 120.

<Operation>
The operation of the ferrite detection device according to the second embodiment will be described.

  In the initial state, one end of the magnet 120 is connected to the second conductive contact 134 by its own attracting force, and the other end of the magnet 120 is located at a separated position by its own weight. That is, the first conductive contact 132 and the second conductive contact 134 are in an electrically disconnected state.

  In this state, the ferrite 60 attached to the electric wire 62 is set at a predetermined set position 12.

  When the two ferrites 60 are attached to the electric wire 62 arranged at the set position 12 without any defect, the other end portion of the magnet 120 arranged almost immediately below each ferrite 60 has a hole portion due to the adsorption force with respect to the ferrite 60. It moves from the separated position in 122 to the close position. And each magnet 120 contacts the 1st conductive contact 132 and the 2nd conductive contact 134 which adjoin each other across the gap corresponding to each. As a result, a plurality of adjacent first conductive contacts 132 and second conductive contacts 134 are electrically connected via the respective magnets 120.

  In this way, in the circuit including the first conductive contact 132, the second conductive contact 134, and the detection unit 40, a current flows by the power source 42, the light bulb 44 is turned on, and the ferrite 60 is not lost. Informs that it is attached to.

  When at least one ferrite 60 is not attached to the electric wire 62 arranged at the set position 12, the other end of the magnet 120 arranged almost immediately below the portion where the ferrite 60 is not attached is caused by its own weight. Stay in the spaced position. Then, the adjacent first conductive contact 132 and second conductive contact 134 are electrically disconnected.

  As described above, in the circuit including the first conductive contact 132, the second conductive contact 134, and the detection unit 40, the electric bulb 44 is not lit because no current flows, and the ferrite 60 is attached to the electric wire 62. Notify that there is no part.

  According to the present embodiment, the same effect as the first embodiment is obtained, and in addition, since one end of the magnet 120 is swingably connected to the second conductive contact 134, the ferrite 60 is set. At this time, the other end of the magnet 120 is moved to the proximity position by its own attractive force while one end of the magnet 120 is connected to the second conductive contact 134. Thereby, while being able to move with the smaller force which moves the whole magnet 20, the aspect of the movement of the magnet 120 is stabilized, and the catch of the magnet 120 can be suppressed. For this reason, the presence or absence of the ferrite 60 can be detected more reliably.

{Modifications}
In the above embodiment, the number of ferrite 60 to be detected is not limited to two, and may be one or three or more. In this case, one or more magnets 20 or 120 may be provided corresponding to the number of ferrites 60. In addition, the conductive contact 30 or the first conductive contact 132 and the second conductive contact 134 are spaced from each other by a distance corresponding to the number of the magnets 20 or 120, and the magnets 20 or 120 are in close proximity. What is necessary is just to arrange | position so that it may be electrically connected in series in a state. For example, in the first embodiment, when three ferrites 60 are attached, three magnets 20 are provided corresponding to the ferrites 60, and the four conductive contacts 30 are electrically connected in a state where the magnets 20 are close to each other. May be arranged so as to be connected in series.

  Moreover, in the said embodiment, the detection part 40 is not restricted to the power supply 42 and the light bulb 44, The electroconductive contactor 30 or the 1st electroconductive contactor 32, and the 2nd electroconductive contactor 34 are electrically connected. What is necessary is just to be able to detect whether or not it has been done. For example, a combination of a power source and a buzzer, a device such as a tester that can perform a continuity test, or a device that outputs the presence or absence of continuity may be used.

  In addition, each structure demonstrated by each said embodiment and each modification can be suitably combined unless it mutually contradicts.

1 is a front view of a ferrite detection device according to a first embodiment. 1 is a plan view of a ferrite detection device according to a first embodiment. It is a side view of the ferrite detection apparatus concerning a 1st embodiment. It is a figure which shows the shape of the magnet which concerns on 1st Embodiment. It is a figure which shows the ferrite detection operation | movement which concerns on 1st Embodiment. It is a front view of the ferrite detection apparatus concerning a 2nd embodiment. It is a top view of the ferrite detection apparatus concerning a 2nd embodiment. It is a side view of the ferrite detection apparatus concerning a 2nd embodiment. It is a figure which shows the shape of the magnet which concerns on 2nd Embodiment. It is a figure which shows the ferrite detection operation | movement which concerns on 2nd Embodiment.

Explanation of symbols

10 base 12 set position 20 magnet 120 magnet 30 conductive contact 132 first conductive contact 134 second conductive contact 40 detector 50 guide 60 ferrite 62 electric wire

Claims (5)

A ferrite detection device for detecting ferrite attached to an electric wire,
A base capable of supporting the ferrite attached to the wire at a predetermined set position;
The base is movable between a proximity position close to the set position and a separated position away from the set position, and the proximity is obtained by an adsorption force to the ferrite in a state where the ferrite is disposed at the set position. A magnet arranged to be movable toward the position;
It is disposed between the set position and the magnet, and is electrically disconnected when the magnet is in the separated position, and is electrically connected via the magnet when the magnet is in the proximity position. A plurality of conductive contacts arranged at intervals so as to be connected to each other,
A detection unit for detecting whether or not the plurality of conductive contacts are electrically connected via the magnet;
Ferrite detection device with The ferrite detection device according to claim 1,
The said base has a positioning guide which positions the at least one of the said electric wire and the said ferrite so that the said ferrite may be arrange | positioned facing the said magnet. The ferrite detection device according to claim 1, wherein the ferrite detection device is intended for an electric wire on which a plurality of the ferrites are attached.
A plurality of the magnets are provided corresponding to the plurality of ferrites,
The plurality of conductive contacts are electrically connected in series with the plurality of magnets in the proximity positions with a plurality of intervals corresponding to the plurality of magnets. A ferrite detector arranged to be connected. The ferrite detection device according to any one of claims 1 to 3,
A ferrite detection device in which the magnet has a substantially spherical shape. The ferrite detection device according to any one of claims 1 to 3,
The plurality of conductive contacts include at least one first conductive contact having a magnetic property that is not attracted by the attractive force of the magnet, and at least one second conductive having a magnetic property that is attracted by the attractive force of the magnet. Having a sex contact,
The magnet is movable between one end portion swingably connected to the second conductive contact by its own attractive force, a position close to the set position, and a position far from the set position, A ferrite detection device comprising: the other end portion that is movable toward the set position by an adsorption force with respect to the ferrite in a state where the ferrite is disposed at the set position and is capable of contacting the first conductive contact.

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