JP4098685B2 - Twisted wire, coil, and noise filter device - Google Patents

Description

The present invention, strands of conductive wire, coil strand is wound on the core, and a noise filter device. For example, it is arranged between a power source (AC power source or DC power source) and a load device to which electricity is supplied from the power source through a power cord, and prevents noise from propagating from the load device to the power source through the power cord. In addition, the present invention is suitably applied to a noise filter device that blocks noise radiated to the outside from the power cord, and a coil (normal mode coil or common mode coil) used in the noise filter device.

  Conventionally, for example, a noise filter device has been provided between a load device such as an inverter device that drives a motor or the like and a power source in order to prevent the noise from the load device serving as a noise generation source of conduction noise or radiation noise. It is inserted and arranged (see Patent Document 1).

  In this noise filter device, a coil (normal mode coil or common mode coil) inserted in series in a connection line between the load device and the power source is used.

JP-A-10-107571

  By the way, when the load device is a high power device such as a semiconductor manufacturing device, a machine tool, an elevator, or plant equipment, a current exceeding 100 [A] may flow through the coil.

Therefore, conventionally, as shown in FIG. 24, for example, a coiled copper wire (DCC wire) 4 having a cross-sectional area of 60 [mm ² ] is covered with a silicon-based insulating tube 6 as a coil 2 of a noise filter device for large current applications. The wire 8 wound around the toroidal core 10 is used for use. Here, the size of the toroidal core 10 is an outer diameter φ130, an inner diameter φ100, and a thickness t70. The allowable current of the coil 2 according to the prior art using the cotton-wrapped copper wire 4 is about 100 [A]. Therefore, in order to obtain a coil having an allowable current of about 300 [A], it is necessary to form the coil by winding the three electric wires 8 in parallel (total cross-sectional area 180 [mm ² ]). The coil 2 is a three-phase, three-wire 500 Vac class.

  However, in the coil 2 using the above-described cotton-wrapped copper wire 4, the electric wire is hard, and the toroidal core 10 cannot be wound with many turns. Not provided to.

  In practice, the core wire of the cotton-wrapped copper wire 4 in FIG. 24 has a configuration in which 40 bare copper wires having a diameter of 0.12 are bundled and twisted, and the bundled strands are composed of 7 bundles and 19 bundles are twisted. It is a stranded wire created by three stranded wire manufacturing processes.

  Therefore, it is necessary to manufacture a bundled stranded wire. As shown in FIG. 25, the bundled stranded wire is composed of 40 pieces of wire having a φ0.12 bare copper wire wound beforehand (constituting a bundled stranded wire). The bare copper wire 32 is drawn from the bobbin 30 of the number equal to the number of copper wires), and the bundled stranded wire 36 in which 40 strands are twisted by the twisting process section 34 is wound around the winding bobbin 38.

  However, in the case where the bundled stranded wires 36 are manufactured in this way, the same number of bobbins 30 as the number of the bundled stranded wires 36 are required, so that the storage space is increased and the manufacturing equipment is large. There is a problem of scale. Moreover, there is a problem that a space for storing the number of winding bobbins 38 corresponding to the number of bundled stranded wires 36 is also required. Furthermore, the operation of covering the long twisted wire with the insulating tube 6 is extremely complicated and expensive.

  As a result, the coil 2 according to the prior art using the cotton-wrapped copper wire 4 shown in FIG. 24 has a drawback that its use is limited to an apparatus having an allowable current of about 300 [A] or less and the manufacturing cost is high.

  FIG. 26 shows a schematic configuration of the high-power device coil 12 exceeding about 300 [A]. This coil 12 has a structure in which three copper plates, such as bus bars 20, 22, and 24, are passed through openings of three toroidal cores 14, 16, and 18 arranged to increase the inductance value. The coil 12 using the bus bars 20, 22, and 24 can be used for a high-power device exceeding about 400 [A].

  However, the coil 12 using the bus bars 20, 22, and 24 and the coil 2 using the above-described cotton-wrapped copper wire 4 have the following various problems because the conductor is thick and hard.

  First, since it is difficult to wind the coil around the core, the inductance value is lowered, and the high frequency cutoff effect by the coil is lowered.

  Second, conversely, a coil having a necessary inductance value is increased in size.

  Thirdly, the cost increases because a coil having the required inductance value is manufactured.

The present invention has been made in consideration of such various problems, and can be used even with a large current produced by a twisted wire manufacturing apparatus that makes it possible to easily manufacture a twisted wire. It aims at providing the electric wire of a thin strand wire .

  Another object of the present invention is to provide a coil that can be used with a large current and can easily increase the inductance value.

  Furthermore, an object of the present invention is to provide a noise filter device that can be used with a large current.

The stranded wire electric wire according to the present invention is a stranded wire electric wire created by a stranded wire manufacturing device , wherein the manufacturing device is on an axis arranged in the X axis direction, and is orthogonal to the X axis direction. A moving shaft that moves in the Y-axis direction is mounted, and a guide pulley is attached to the moving shaft and a tube is attached to the tip, and the operation is controlled by an NC program incorporated in the control panel. The XY biaxial robot is arranged with an interval in the X-axis direction, the opening end is vertically upward and faces the tip end side of the moving shaft, and one of them is configured to be rotatable around the X-axis. a hook pairs having a bobbin copper wire is wound, and when manufacturing a wire strand by the manufacturing apparatus, to fix the position of the front Symbol hook pairs, and the open end vertically upward fixed, to the XY2-axis robot Thus , the copper wire is drawn out from the bobbin via the pulley and passed between the hook pairs, and thereafter the copper wire feeding end of the tube is the same in order to produce a ring-shaped conductor having a predetermined number of turns. The copper wire is wound from the bobbin through the pulley by moving the moving shaft so as to repeat the movement of drawing a ring on a plane, and a rotatable hook is manufactured after the ring-shaped conductor is manufactured. It was prepared by Rukoto by a predetermined number of times the rotation, in a predetermined twist number of conductive lines, the wire is a ten to 20,000 present bundles of copper wire Fai0.4～Fai1.6, and Sodan area [mm ² ] is a stranded wire of 10 or more and 10,000 or less (the invention according to claim 1 ).
Wires of this strand is conventionally a wire not a conventional 50 [A] ~ about 300 [A] further having permissible rated current exceeding more 400 [A].

For example, for 50 [A], φ1.2, 11 wires, total cross-sectional area of 12.4 [mm ² ], φ0.4, 105 wires, total cross-sectional area of 13.2 [mm ² ] Applicable to electric wires. Also, for 400 [A], φ1.0, 500 wires, total cross-sectional area 392.8 [mm ² ] electric wire, φ0.4, 3200 wires, total cross-sectional area 402.2 [mm ² ] Applicable to electric wires. Such an electric wire can be used with a large current and is a relatively thin electric wire.

Here, the copper wire is a bare copper wire, a bare copper wire plated wire, at least one copper wire coated with an insulating paint, or the bare copper wire, the bare copper wire plated wire, A self-melting coating in which a self-fusion coating is applied to a copper wire mixed with at least two types of copper wires coated with an insulating paint, or to the at least one type of copper wire or a copper wire mixed with the at least two types of copper wire The incoming wire can be used according to the application (the invention according to claim 2 ).

Moreover, since the coil which wound the electric wire of the strand wire of Claim 1 or 2 around the core which lets a magnetic flux pass is comparatively soft, it is easy to wind an electric wire around a core, and use by a large electric current is possible. A coil having a high possible inductance value can be manufactured (the invention according to claim 3 ). As the shape of the core, a toroidal core, a square core, a compound core, or the like can be used.

As a core of the coil, the transformer core, the normal mode coil (single-phase single-wire) for the core, a common mode coil (single-phase two-wire, single-phase three-wire, three-phase three-wire, 3-phase 4 By using any one of the (wire type) cores, it can be suitably applied to a power transformer and a noise filter device, respectively (the invention according to claim 4 ). That is, it is possible to manufacture a small-sized power transformer (including a switching power supply transformer) with good high-frequency characteristics or a noise filter device (invention according to claim 5 ) with good high-frequency cutoff characteristics.

According to the present invention, conductive lines capable strands used in large current, high coils of possible inductance values used at a large current, a noise filter device which can be used at a large current is provided.

  Hereinafter, embodiments of the present invention will be described in accordance with A. Electric wire (stranded wire), B. A method for producing an electric wire (stranded wire), C.I. A coil or the like using an electric wire (stranded wire) will be described with reference to the drawings. In practice, A. The electric wires described in B. In order to facilitate understanding, first of all, A. The electric wire (stranded wire) will be described.

A. Description of Electric Wire (Stranded Wire) FIG. 1 shows a configuration of an electric wire (stranded wire) 50 according to an embodiment of the present invention. The electric wire 50 is a stranded wire having a bundle of 10 to 20,000 with a copper wire 60 of φ0.4 to φ1.6 and a total cross-sectional area [mm ² ] of 10 to 10,000 (described below). Thus, a stranded wire created in a single stranded wire manufacturing process). This electric wire is a non-conventional electric wire, and has a conventional rated current of 50 [A] to about 300 [A] and more than 400 [A].

For example, for 50 [A], φ1.2, 11 wires, total cross-sectional area of 12.4 [mm ² ], φ0.4, 105 wires, total cross-sectional area of 13.2 [mm ² ] Applicable to electric wires.

Also, for 400 [A], φ1.0, 500 wires, total cross-sectional area 392.8 [mm ² ] electric wire, φ0.4, 3200 wires, total cross-sectional area 402.2 [mm ² ] Applicable to electric wires.

In addition, for 150 [A], an electric wire of φ1.2, 100 pieces, and a total cross-sectional area of 113.2 [mm ² ] is applicable.

  In this case, the electric wire (twisted wire) 50 is fixed with resin-made string-like fasteners 52 at both ends and in accordance with necessity so as not to be unwound. In addition, it can replace with the fastener 52 and can also be fixed using an adhesive tape. A solder 54 is attached to the tip of the electric wire (stranded wire) 50.

  The copper wire 60 used for the electric wire (stranded wire) 50 includes a bare copper wire, a plated wire such as tin of bare copper wire, a copper wire coated with an insulating paint such as urethane / polyester (UEW wire, PEW wire, etc.) ) Is preferably used. The bare copper wire and the bare copper wire plated wire 50 (twisted wire) 50 do not require the insulating film peeling treatment, and therefore the work process can be shortened.

  Further, depending on the application, as the copper wire 60, the self-bonding paint is applied to any one of the copper wires 60 among the bare copper wire, the plated copper wire, and the copper wire 60 coated with the insulating paint. Self-bonding lines can be used. As the self-bonding wire, either a wire that can be bonded by heat treatment or a wire that can be bonded by a solvent can be used. In this case, the electric wire (stranded wire) 50 is not broken.

  Further, as the copper wire 60, a copper wire in which at least two kinds of the bare copper wire, the plated copper wire, the copper wire coated with the insulating paint are mixed, or at least one kind of copper wire or at least 2 A self-bonding wire in which a self-bonding paint is applied to a copper wire mixed with seeds can be used.

  Next, a method for manufacturing the above-described electric wire (stranded wire) 50 will be described.

B. Description of Manufacturing Method of Electric Wire (Stranded Wire) Example 1: Method of manufacturing a stranded wire using a rod-shaped bobbin having a variable length as a winding bobbin (winding means) FIG. 1 shows a front configuration of a winding device 58 that winds a copper wire 60 from a bobbin (also referred to as a copper wire winding drum) 62 around which a wire 60 is wound around a rod-shaped winding bobbin 64 to produce a ring-shaped conductor 66. ing. The bobbin 62 is rotatably fixed to a fixed shaft (not shown).

  FIG. 3 shows a perspective configuration of the winding device 58 immediately before manufacturing the ring-shaped conductor 66.

  2 and 3, the rod-shaped take-up bobbin 64 has a rotating shaft 70 attached to one end side of a support post 69 fixed to the floor, and a plate 71 is integrally attached to the rotating shaft 70. The plate 71 has two pins 68 that are movable in the length direction of the plate 71. By changing the position of the pin 68 in the length direction, the length of the ring-shaped conductor 66 can be adjusted to a desired length. In this case, it is preferable that the length from the center of the rotating shaft 70 to each pin 68 is the same length so that the rotation of the rotating shaft 70 is not shaken.

  The rotating shaft 70 is fixed integrally with the driven pulley 72 on the same axis. A belt 80 for power transmission is stretched between the driven pulley 72 and a drive pulley 76 of an electric motor 74 that is a rotational drive source fixed to the floor.

  As shown in FIG. 4, after the length between the pins 68 is fixed to a desired length, the drive pulley 76 of the electric motor 74 is rotated in the arrow B direction, so that the rotating shaft 70 is rotated in the arrow A direction. The rotation is stopped when the rotation speed reaches a predetermined number (1/2 of the predetermined number). Thereby, a predetermined number of ring-shaped conductors 66 are manufactured.

  2 to 4, the rotating shaft 70 is rotated by the belt 80. However, the rotating shaft 70 may be directly rotated by a rotation drive source or may be rotated via a gear. The ring-shaped conductor 66 can be manufactured as described above.

  Further, as shown in FIG. 5, the rod-shaped winding bobbin 64 has a rotation shaft 70A, and has a rod-shaped winding portion 64B having a rod-shaped portion 64B that is perpendicular to the rotation shaft 70A and extends on both sides. If it has the structure of the bobbin 64A, the structure is arbitrary.

  Next, the ring-shaped conductor 66 manufactured by the winding device 58 is removed from the pin 68 of the rod-shaped winding bobbin 64 and pulled to the both sides from within the opening 82 (see FIGS. 2 and 4), so that the desired length is obtained. A desired number of bundled wires having a length corresponding to the stranded wire can be manufactured.

  FIG. 6 shows a configuration of a stranded wire manufacturing apparatus 90 in which a ring-shaped conductor 66 is formed into a desired number of bundled wires 66B in a state in which the ring-shaped conductor 66 is pulled outward from the opening 82 by hooks 88 and 89.

  One end of the bundle 66B is hooked on a fixed hook 89 provided on the fixed block 81, and the other end is fixed to a rotary hook 88 fixed to a rotary shaft 86 of an electric motor 84 that can rotate in the direction of the arrow. It is hung. The inter-axis distance between the fixed hook 89 and the rotary hook 88 is configured to be variable so as to correspond to the length of the bundle 66B.

  In the state of FIG. 6, rotating the rotating shaft 86 of the electric motor 84 rotates the rotating hook 88 and twists the bundle 66B. By stopping the rotation of the electric motor 84 after a predetermined number of rotations, a stranded wire having a predetermined number of twists is produced. If the fixed hook 89 is a rotating hook and is rotated in the direction opposite to the arrow direction, the production time of the stranded wire can be shortened.

  After removing the stranded wires from the hooks 88 and 89 and fixing them with the resinous string-like fasteners 52 or adhesive tape at both ends and at positions as required, as shown in FIG. A desired electric wire (stranded wire) 50 can be manufactured by attaching the solder 54 to the portion.

  When the copper wire 60 is a heat-bondable self-bonding wire with the stranded wires removed from the hooks 88 and 89, the copper wire 60 is left in a constant temperature bath such as an oven at a constant temperature for a predetermined time. The occurrence of the unraveling of the electric wires (stranded wires) 50 can be prevented by bonding them together. Moreover, in the state where the stranded wire is removed from the hooks 88 and 89, the copper wires 60 can be bonded to each other by a solvent by spraying a solvent on the copper wire 60 or immersing it in a solvent. Generation | occurrence | production of the tearing of the electric wire (stranded wire) 50 can be prevented.

  FIG. 7 shows the configuration of another stranded wire manufacturing apparatus 92. In this stranded wire manufacturing device 92, the rotary hook 88 in the stranded wire manufacturing device 90 of FIG. 6 is replaced with a rotary flat press plate 98 as a stopper, and a fixed flat press plate with a fixed hook 89 and a fixed block 81 as a stop. 99 and the fixed block 81A. Similarly, both ends of the ring-shaped conductor 66 are fixed by screws 102 and 104 using the flat press plates 98 and 99, and the rotary flat press plate 98 is rotated by the electric motor 84, so that a stranded wire is produced. Can do.

  FIG. The process drawing of the manufacturing method of an electric wire (stranded wire) is shown. This method of manufacturing an electric wire (stranded wire) is based on one bobbin 62 wound with a copper wire 60 having a diameter of φ0.4 to φ1.6 when a stranded wire having a desired length is manufactured. A winding step (S1) in which the copper wire 60 is wound around the winding bobbin 64 to produce the ring-shaped conductor 66, and the ring-shaped conductor 66 is pulled from the inside of the opening 82 or the like to both sides, whereby a stranded wire having a desired length is obtained. In a bundle manufacturing step (S2) for forming a large number of bundles 66B having a length corresponding to the above, and in a state where both ends of the multiple bundles 66B are pulled, at least one end is rotated to produce a stranded wire. A stranded wire manufacturing process (S3) is provided as a basic process.

  By carrying out this basic process and producing a stranded wire, an electric wire (stranded wire) that can be used with a large current can be easily produced in a single stranded wire production process (S3).

  Further, the winding device 58 may be configured to wind the copper wire 60 from one bobbin 62 around which the copper wire 60 is wound, so that the twisted wire is configured as described with reference to FIG. The number of bobbins 30 equal to the number of wires to be used is not required, the configuration of the winding device itself is simplified, the space for manufacturing the electric wire (stranded wire), and the cost (the cost of the winding device and the stranded wire) ) Can be greatly reduced.

  In the present invention, the number of bobbins 62 used in the winding process (S1) is not necessarily limited to one. For example, as shown in FIG. 9, when two bobbins 62 are prepared (two or more may be prepared) and parallel winding is used, the winding time can be reduced to half. In other words, in the present invention, the ring-shaped conductor 66 can be manufactured with a smaller number of bobbins 62 than the number of wires constituting the stranded wire, and at least one bobbin 62.

  Further, when the copper wire 60 is any one of a bare copper wire, a bare copper wire plated wire, and a copper wire coated with an insulating paint, the stranded wire is fixed with a tape or string-like fastener 52. Furthermore, when the copper wire 60 is a self-bonding wire and is a heat-bonding type, the stranded wire is fixed by heat treatment. When the copper wire 60 is a self-bonding wire and is a solvent-bonding type, the stranded wire is fixed with a solvent. Thus, it is preferable to provide a break prevention step (S4) as the next step of the stranded wire manufacturing step (S3). As a result, it is possible to obtain a stranded wire that has been subjected to the prevention of twisting.

  Here, another embodiment of the bundled wire manufacturing step (S2) will be described. In the drawings referred to below, the same or corresponding parts as those shown in FIGS. 1 to 9 are designated by the same reference numerals, and detailed description thereof is omitted.

Example 2: Method of manufacturing a stranded wire by using a disk-shaped bobbin having a variable diameter as a winding bobbin FIG. 10 illustrates a disk-shaped winding bobbin (winding) from one bobbin 62 wound with a copper wire 60. (Take-up means) The front structure of the winding device 158 which winds the copper wire 60 around the 164 and manufactures the ring-shaped conductor 166 is shown.

  FIG. 11 shows a perspective configuration of the winding device 158 before manufacturing the ring-shaped conductor 166.

  10 and 11, the disk-shaped take-up bobbin 164 has a rotating shaft 70 attached to one end side of the support post 69, and a disk 171 is integrally attached to the rotating shaft 70. The four pins 168 that can move in the radial direction of the disk 171 are attached to 171. By changing the position of the pin 168 in the radial direction, the length of the ring-shaped conductor 166 can be adjusted to a desired length. In this case, it is preferable that the length from the center of the rotation shaft 70 to each pin 168 is the same length so that the rotation of the rotation shaft 70 is not shaken.

  The rotating shaft 70 is fixed integrally with the driven pulley 72 on the same axis. A belt 80 for power transmission is stretched between the driven pulley 72 and the drive pulley 76 of the electric motor 74.

  As shown in FIG. 12, after the position of each pin 168 is fixed at a desired position, the drive pulley 76 of the electric motor 74 is rotated in the direction of arrow B, whereby the rotary shaft 70 is rotated in the direction of arrow A. The rotation is stopped when the rotation number (1/2 of the predetermined number) is reached. Thereby, a predetermined number of ring-shaped conductors 166 can be manufactured.

  If the disc-shaped take-up bobbin 164 has a configuration of a disc-like take-up bobbin 164A having a rotating shaft 70A and a disc 171A having a variable diameter, as shown in FIG. The structure is arbitrary.

  Next, by removing the ring-shaped conductor 166 manufactured by the winding device 158 from the disk-shaped winding bobbin 164 and pulling it from the inside of the opening 182 (see FIGS. 10 and 12), a stranded wire having a desired length is obtained. A desired number of bundled wires having a length corresponding to can be manufactured.

  Hereinafter, by performing the above-described stranded wire manufacturing step (S3) and the unraveling prevention step (S4), an electric wire (stranded wire) having a desired length can be manufactured.

  Here, still another embodiment of the bundled wire manufacturing step (S2) will be described.

Example 3: Method of manufacturing a stranded wire by using a belt-conveyor bobbin having a variable length between rotating shafts as a winding bobbin (winding means). FIG. 14 shows one bobbin 62 around which a copper wire 60 is wound. 3 shows a front configuration of a winding device 258 that winds a copper wire 60 around a belt conveyor-like winding bobbin 264 and manufactures a ring-shaped conductor 266.

  FIG. 15 shows a perspective configuration of the winding device 258 before manufacturing the ring-shaped conductor 266.

  14 and 15, the belt conveyor-like winding bobbin 264 is configured to have two pulleys 281 and 282. In order to change the length between the pulleys 281 and 282, the length of the ring-shaped conductor 266 is changed to a desired length by moving the position of one or both of the pulleys 281 and 282 in a direction toward or away from the pulley. Can be adjusted to.

  As shown in FIG. 16, after the length between the pulleys 281 and 282 is fixed to a desired length, the driven pulley 282 is moved in the direction of arrow A by rotating the drive pulley 281 of the electric motor 74 in the direction of arrow B. The rotation is stopped when the rotation speed reaches a predetermined rotation speed (1/2 of the predetermined number). Thereby, a predetermined number of ring-shaped conductors 266 can be manufactured. In this belt conveyor-like winding bobbin 264, the ring-shaped conductor 266 itself also serves as a transmission belt.

  Even in the above manner, the ring-shaped conductor 266 can be manufactured. Next, after creating the ring-shaped conductor 266, the ring-shaped conductor 266 manufactured by the winding device 258 is removed from both pulleys 281, 282, and pulled from the inside of the opening 283 (see FIGS. 14 and 16) to both sides. A desired number of bundles having a length corresponding to a stranded wire having a desired length can be manufactured.

  Hereinafter, by performing the above-described stranded wire manufacturing step (S3) and the unraveling prevention step (S4), an electric wire (stranded wire) having a desired length can be manufactured.

  17A to 17D show a configuration and a manufacturing method of a stranded wire manufacturing apparatus 402 that manufactures an electric wire (stranded wire) by using an XY biaxial robot 400 instead of the winding bobbin 64 described above as a winding means. Show.

  This stranded wire manufacturing apparatus 402 has an XY biaxial robot 400 whose operation is controlled by an NC program incorporated in a control panel (not shown), on the fixed axis 404 arranged in the X axis direction and in the X axis direction. A moving shaft 406 that moves in the Y-axis direction perpendicular to the axis is placed. A pulley 408 for guiding the copper wire 60 is attached to the side surface of the moving shaft 406. In addition, a nozzle-like tube 410 is attached to the tip of the side surface of the moving shaft 406.

  FIG. 18 shows an enlarged view of the distal end portion of the moving shaft 406 to which the tube 410 is attached.

  The stranded wire manufacturing apparatus 402 is configured such that the copper wire 60 fed out from the bobbin 62 and guided by the two pulleys 408 passes through the pores of the tube 410 and is wound between the hooks 412 and 414.

  The hook 412 having the open end (hook break portion) 413 directed vertically upward is fixed to a base 416 that can be positioned by moving in the X-axis direction by the control panel. By moving the base 416 in the X-axis direction and fixing it at a predetermined position, a ring-shaped conductor 466 corresponding to a desired length can be manufactured.

  In addition, the hook 414 that is rotatable by the motor 422 fixed to the base 420 has an open end (hook break portion) 415 that is directed vertically upward at the start of winding, until winding is completed, and until winding is completed. ing. The motor 422 is also controlled by the control panel.

  As shown in FIG. 17A, in a state where the position between the hooks 412 and 414 is fixed and the open ends 413 and 415 are fixed vertically upward, the copper wire 60 is passed between the hooks 412 and 414. As shown in FIG. 4, when the ring-shaped conductor 466 having a predetermined number of turns is manufactured, the copper wire feeding end (vertical lower end) of the tube 410 repeats the movement of drawing the ring 450 on the same plane, The wire 60 is wound up and a ring-shaped conductor 466 is manufactured. The ring 450 is not limited to a rectangle, and a circle, an ellipse, a rhombus, or the like is selected.

  FIG. 17B shows a state during the production of the ring-shaped conductor 466, and FIG. 17C shows a state after the production of the ring-shaped conductor 466 is completed.

  Thereafter, as shown in FIG. 17C, when the hook 414 is rotated a predetermined number of times by the electric motor 422, the rotation of the electric motor 422 is stopped, whereby a stranded wire having a predetermined number of twists can be manufactured.

  As shown in FIG. 17D, the twisted wires 467 are removed from the hooks 412, 414, and as shown in FIG. Then, the desired electric wire (stranded wire) 50 shown in FIG. 1 can be manufactured by attaching the solder 54 to the tip.

C. Description of Coil Using Wire (Stranded Wire) FIG. 20 shows a UEW wire created by the manufacturing method of this embodiment in the toroidal core 10 that passes the magnetic flux having the outer diameter φ130, the inner diameter φ100, and the thickness t70 shown in FIG. , Φ1.0, 500 pieces, and a total cross-sectional area of 392.8 [mm ² ], each showing a common mode coil 300 for a noise filter device in which three electric wires 50 (see FIG. 1) are each wound a plurality of times. .

  The allowable current of the common mode coil 300 is about 400 [A] and is of the three-phase three-wire type 500 Vac class.

  The common mode coil 300 has a more flexible conductor and a thinner twisted wire, that is, a collective conductor, compared to the coil 2 using the wire 8 made of cotton-wrapped wire shown in FIG. It is possible to increase the number of turns. Therefore, it is easy to increase the inductance value, and the attenuation amount of the high frequency noise can be increased.

  Further, since the number of turns can be increased, the inductance value can be increased, and a large number of toroidal cores 14, 16, 18 can be obtained as in the noise filter device having the coil 12 using the bus bars 20, 22, 24 of FIG. There is no need to pile up.

  As a result, as shown in FIG. 21, a case 311, input terminals 305, 306, 307, output terminals 308, 309, 310, common mode coil 300, X capacitor block 302, and Y capacitor block 304 are provided. The noise filter device 320 provided can be simultaneously reduced in size, weight, cost, and performance of high frequency cutoff performance.

  In addition to the common mode coil 300, the electric wire 50 according to the embodiment of the present invention can be applied to a normal mode coil 322 in which one electric wire 50 is wound around the core 10 a plurality of times as shown in FIG. As shown in FIG. 23, it can also be applied as a transformer 324 in which a primary winding 50A and a secondary winding 50B are wound around a core 298.

It is a lineblock diagram of an electric wire concerning one embodiment of this invention. It is a front view of the winding apparatus which has a rod-shaped winding bobbin for manufacturing a ring-shaped conductor. It is a perspective view of the winding apparatus (before winding) of the example of FIG. It is a perspective view of the winding apparatus (after winding) of the example of FIG. It is a conceptual explanatory drawing of a rod-shaped winding bobbin. It is explanatory drawing of the stranding process of the bundle wire using a hook. It is explanatory drawing of the stranding process of the bundle wire using a flat stopper. It is process drawing of the manufacturing method of an electric wire (stranded wire). It is explanatory drawing of the structure which winds up a copper wire from two bobbins. It is a front view of the winding apparatus which has a disk-shaped winding bobbin for manufacturing a ring-shaped conductor. It is a perspective view of the winding apparatus (before winding) of the example of FIG. It is a perspective view of the winding apparatus (after winding) of the example of FIG. It is a conceptual explanatory view of a disk-shaped winding bobbin. It is a front view of a winding device having a belt conveyor-like winding bobbin for producing a ring-shaped conductor. It is a perspective view of the winding apparatus (before winding) of the example of FIG. It is a perspective view of the winding apparatus (after winding) of the example of FIG. FIG. 17A is an explanatory diagram at the start of winding in the stranded wire manufacturing apparatus, FIG. 17B is an explanatory diagram during winding, FIG. 17C is an explanatory diagram during stranded wire manufacturing, and FIG. 17D is a state where the stranded wire is removed. It is explanatory drawing of. It is an enlarged view of the front-end | tip part of a moving shaft. It is explanatory drawing of the operation | movement which draws a ring | wheel. It is explanatory drawing of the common mode coil manufactured with the electric wire of this embodiment. It is the schematic of the noise filter apparatus using the common mode coil of this embodiment. It is explanatory drawing of the normal mode coil manufactured with the electric wire of this embodiment. It is explanatory drawing of the transformer manufactured with the electric wire of this embodiment. It is explanatory drawing of the common mode coil which concerns on the prior art using a cotton roll copper wire. It is a schematic explanatory drawing of the manufacturing apparatus of the bundled strand wire which concerns on a prior art. It is a schematic explanatory drawing of the common mode coil which concerns on the prior art using a bus bar.

Explanation of symbols

2, 12, 300, 322 ... Coil 10, 298 ... Core 20, 22, 24 ... Busbar 50 ... Electric wire (stranded wire)
52 ... Fastener 58 ... Winding device 60 ... Copper wire 62 ... Bobbin (copper wire winding drum)
64, 64A ... Rod-shaped winding bobbins 66, 166, 266, 466 ... Ring-shaped conductor 66B ... Bundle wire 68, 168 ... Pins 82, 182, 283 ... Opening 88, 89 ... Hook 90, 92 ... Twisted wire manufacturing device 98 Rotating flat pressing plate 99 ... Fixed flat pressing plate 158, 258 ... Winding device 164, 164A ... Disc-shaped winding bobbin 264 ... Belt conveyor-shaped winding bobbin 302 ... X capacitor block 304 ... Y capacitor block 320 ... Noise Filter device 324 ... Transformer 400 ... XY biaxial robot 402 ... Stranded wire manufacturing device 410 ... Pipe

Claims (5)

A twisted wire made by a twisted wire manufacturing device,
The manufacturing apparatus includes:
A moving shaft that moves in the X-axis direction and the Y-axis direction orthogonal to the X-axis direction is placed on the axis arranged in the X-axis direction, and a guide pulley is attached to the moving shaft and a tube is attached to the tip. An XY two-axis robot configured as described above and controlled in operation by an NC program incorporated in the control panel;
A pair of hooks that are arranged at an interval in the X-axis direction, have an open end vertically upward and face the tip end side of the moving shaft, and one of which is configured to be rotatable around the X-axis;
A bobbin wound with a copper wire,
When manufacturing a wire strand by the manufacturing apparatus,
Fixing the position of the front Symbol hook pairs, and fixing the open end vertically upward, by the XY2 axis robot, passes the copper wire to the hook pairs multiplied by feeding via the pulley from the bobbin, Thereafter, in order to manufacture a ring-shaped conductor having a predetermined number of turns, the copper wire feed-out end of the pipe moves on the same plane so as to repeat the movement of drawing a ring, thereby moving the bobbin from the bobbin. via the pulley winding the copper wire was manufactured conductor of the annular, rotatable hooks were manufactured by Rukoto by a predetermined number of times the rotation, in a predetermined twist number of conductive lines,
The wire is a bundle of 10 to 20,000 copper wires of φ0.4 to φ1.6, and is a stranded wire having a total cross-sectional area [mm ² ] of 10 or more and 10,000 or less. Characteristic stranded wire . In the wire of the stranded wire according to claim 1 ,
The copper wire is a bare copper wire, a bare copper wire plated wire, at least one copper wire coated with an insulating paint,
Or the bare copper wire, the plated wire of the bare copper wire, the copper wire mixed with at least two kinds of the copper wire coated with the insulating paint,
Alternatively, the at least one copper wire or the stranded wire cable characterized in that it is a self-bonding wire self-fusing coating is applied to at least two copper wires mix. A coil comprising the stranded wire according to claim 1 or 2 wound around a core through which a magnetic flux passes. The coil according to claim 3 , wherein
The coil, wherein the core is any one of a transformer core, a normal mode coil core, and a common mode coil core. A noise filter device comprising: a common mode coil in which the stranded wire according to claim 1 or 2 is wound around a core through which magnetic flux passes.

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