JPH05135841A - Current carrying device - Google Patents

Abstract

PURPOSE:To provide a current carrying device which can carry current to a coil winding member wound on a metallic mould for moulding and the like safely and securely. CONSTITUTION:A deflection coil winding member S from a wire feeding device is passed through the guide hole 3a of a guide body 4a, and then divided into single magnet wires M, passed through the single wire guide hole 5a of a single wire guide body 5a, and passed through the single wire guide hole 5b of a single wire guide body 6b in the parallel condition. And the they are bundled into a deflection coil winding member S again, and fed to a winding device passing through the guide hole 3b of a guide body 4b. An electrode 13 is slided according to the drive of a hydraulic cylinder 10, it pressed the magnet wires M, and the current is carried after an insulating membrane is broken.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a current-carrying device, and more particularly to a current-carrying device useful for current-heating molding in a process of manufacturing a deflection coil of a deflection yoke or a process of manufacturing a self-maintaining coil.

[0002]

2. Description of the Related Art In a deflection coil, as a deflection coil winding material, a single wire, an insulated coated wire, a gathered wire obtained by gathering or twisting a plurality of insulating coated strands, or a litz wire is used.

The outline of the manufacturing process of the deflection coil is as follows. The deflection coil winding material supplied from the wire feeder is wound around the molding die using the winding device. Insulation coating on both ends of the deflection coil winding material wound around the molding die,
The core wire is exposed by burning it close to the flame of a heated heater or gas burner or by using a high-frequency heating device.

The electrodes are pressed against the exposed portion of the core wire to conduct electricity,
The self-bonding layer of the deflection coil winding material is melted by the electric heating. After energization, the deflection coil winding materials wound around the molding die are cooled until they are fixed to each other, and then removed from the molding die to obtain a deflection coil molded into a predetermined shape.

[0005]

In the conventional manufacturing process of the deflection coil described above, in order to energize the deflection coil winding material wound around the molding die, the insulating coating is baked to expose the core wire. Therefore, there is a risk that smoke may be emitted from the deflection coil winding material or that the deflection coil winding material may be ignited. In addition, there is a problem in that the insulating coating remains unburned and causes poor electrical conduction, or the core wire melts and is broken due to excessive burning. Therefore, an object of the present invention is to provide a current-carrying device capable of safely and surely powering a coil winding material wound around a molding die or the like.

[0006]

The current-carrying device of the present invention comprises:
An energization device disposed between a wire feeder and a winding device that winds a coil winding material supplied from the wire feeder into a coil shape, and one or more single wires supplied from the wire feeder. , A first guide member that guides a coil winding material formed from a gathering wire or a litz wire into a single wire, a gathering wire or a litz wire, and one or more guide members that are guided by the first guide member. A second one for collecting the single wire, the assembly wire or the litz wire again and guiding it to the winding device side as the coil winding material
The guide member and one or more single wires, aggregated wires or litz wires guided by the first guide member are pressed to destroy the insulating coatings of the one or more single wires, aggregated wires or litz wires, and the insulating coating is formed. It is characterized in that it comprises a pressing / energizing means for energizing the destroyed one or more single wires, aggregate wires or litz wires.

[0007]

As a result of earnest research by the inventor of the present invention, an appropriate pressure is applied to the coil winding material by paying attention to the difference in ductility and hardness between the insulating coating of the coil winding material forming the coil winding material and the core wire. By doing so, it was found that the insulating coating of the coil winding material can be broken without impairing the current flow.

That is, when a predetermined pressure is applied to the coil winding material, the insulation coating is broken due to the difference in ductility between the insulation coating and the core wire, and the insulation coating is broken due to the difference in hardness between the insulation coating and the core wire. It is buried in the core wire and the core wire is exposed on the surface. Electricity can be surely supplied by pressing an electrode or the like against the exposed portion.

Therefore, in the current-carrying device of the present invention, the first guide member divides and guides the coil winding material into individual wires, aggregate wires or litz wires. The pressing / energizing means applies the predetermined pressing force to one or more single wires, aggregate wires or litz wires guided by the first guide member, and then energizes the wires.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in more detail below with reference to the embodiments shown in the drawings. However, this does not limit the present invention. FIG. 1 is a perspective view of an embodiment of the current-carrying device of the present invention. The energization device 1 is arranged between a wire feeding device and a winding device (not shown) in the deflection coil manufacturing line.

The deflection coil winding material S is supplied from the wire feeding device to the winding device through the energizing device 1. However, the deflection coil winding material S of the present embodiment is formed by bundling a large number of single magnet wires M. The surface layer of the magnet wire M is a self-bonding layer.

In this energizing device 1, the support plate 2 is arranged so as to stand upright along the wire feeding direction. Support plate 2
Guide bodies 4a, 4b having guide holes 3a, 3b for guiding the deflection coil winding material S are provided on the wire feeding surface 2a of the wire feeding device 2a on the wire feeding device side and the winding device side, respectively. Has been done. Further, a single wire guide body 6a having a large number of single wire guide holes 5a for guiding the magnet wires M one by one.
And a single wire guide body 6b having the same structure as that of the single wire guide body 6b are provided so as to be orthogonal to the wire feeding direction and face each other. Further, a pressure receiving base 7 is disposed at an intermediate position between the single wire guide bodies 6a and 6b via an insulating member 8.

On the wire feeding surface 2a of the support plate 2, a U-shaped pressing structure 9 composed of a vertical member 9a and horizontal members 9b and 9c is provided vertically from the upper and lower end sides of the pressure receiving base 7. Has been projected. A hydraulic cylinder 10 is fixed to the central portion of the vertical member 9a of the pressurizing structure 9, and the hydraulic cylinder 10
A pair of slide shaft receiving portions 11 are fixed to both upper and lower sides of the. The hydraulic cylinder 10 is driven by a drive control device (not shown).

Piston rod 10a of hydraulic cylinder 10
And the pair of slide shafts 11a are fixed to the slider 12. The slider 12 is slidable along the horizontal member 9b of the guide structure 9 according to the driving of the hydraulic cylinder 10.

The surface of the electrode 13 facing the pressure receiving base 7 is R.
It has a shape and is fixed to the slider 12 via an insulating plate 14. A cable 16 drawn out from the power supply unit 15 is screwed to the upper surface of the electrode 13.

Next, the operation will be described. In the energizing device 1, the electrodes 13 are opposed to the press receiving base 7 with a predetermined interval in a state where the hydraulic cylinder 10 is not driven. First, the deflection coil winding material S which is automatically supplied from the wire feeder side or supplied by an operator at the beginning of winding is passed through the guide hole 3a of the guide body 4a and divided into the magnet wires M one by one to guide the single wire. It is passed through the single wire guide hole 5a of the body 6a.

Each magnet wire M passes through the pressure receiving base 7 in a state parallel to the wire feeding direction and is passed through the single wire guide hole 5b of the single wire guide body 6b.

Then, the fixed end side S of the deflection coil winding material S is re-bundled and becomes the winding start side of the deflection coil winding material S.
1 is set through the guide hole 3b of the guide body 4b to an energizing device A (not shown) that serves as the other electrode for energizing the winding material S disposed on the winding device side.

Thus, in the winding device to which the deflection coil winding material S is supplied, the deflection coil winding material S supplied is supplied.
Is wound on a molding die. Therefore, the energizing device 1 is located on one end side of the deflection coil winding material wound around the molding die, and the energizing device A is located on the other end side (fixed end) side.

In the winding device, when the deflection coil winding material S is wound into a predetermined shape, a wire feed stop signal is transmitted to the wire feed device, and a pressurization start signal is sent to each of the drive control devices of the energization devices 1 and A. To send to. Hereinafter, for convenience of description, the operation of the energizing device A will be omitted. Upon receiving the wire supply stop signal, the wire supply device stops supplying the deflection coil winding material S to the power supply device 1.

The drive control device receives the pressurization start signal,
A predetermined hydraulic pressure is supplied to drive the hydraulic cylinder 10. In response to the drive of the hydraulic cylinder 10, the slider 12 slides along the horizontal member 9b of the pressurizing structure 9, and the electrode 13 is pressed against the pressing base 7 via the magnet wire M at a predetermined pressure.

FIG. 2 illustrates how the magnet wire M is deformed in response to the pressing force of the electrode 13. When the pressure is weak,
As shown in FIG. 2A, the insulating coating M1 and the core wire M2 made of copper or the like are similarly deformed. As the pressing becomes stronger, as shown in FIG. 2B, the insulating coating M1 and the core wire M
The insulating coating M1 is broken due to the difference in ductility with respect to 2. Then, under a predetermined pressing force, as shown in (c) of FIG. 2, the insulating coating M1 ruptured due to the difference in hardness between the insulating coating M1 and the core wire M2 is buried in the core wire M2, and the core wire M2 is exposed on the surface. To do. The predetermined pressing is, for example, a flatness ratio of 1/10.
It corresponds to the above. However, the flatness ratio is (thickness of magnet wire flattened by rolling) / (wire diameter of magnet wire before rolling).

Next, in the state as shown in FIG.
Power is supplied from the power supply unit 15 to the respective magnet wires M. In this way, the self-bonding layer of the deflection coil winding material S wound around the molding die is melted. The power supply from the power supply unit 15 is stopped after a predetermined time, and the slider 12 is returned to the original position. In this way, the deflection coil winding materials S wound around the molding die are cooled until they are fixed to each other, and are removed from the molding die to obtain a deflection coil molded into a predetermined shape.

In the above embodiment, the deflection coil winding material S is used.
As described above, a case where a large number of single-wire magnet wires M are used has been described. However, the above-described embodiment is also applied to the case where the deflection coil winding material S is an assembly wire in which the magnet wires M are assembled in parallel in a circular cross section in advance or a litz twisted litz wire. It can be performed in the same manner as the example.

[0025]

According to the current-carrying device of the present invention, the coil winding material formed of one or more single wires, assembly wires or litz wires can be safely and reliably energized. Therefore, it is useful for electric current heating molding in the manufacturing process of the self-maintenance type coil such as the manufacturing process of the deflection coil of the deflection yoke.

[Brief description of drawings]

FIG. 1 is a perspective view of an embodiment of a current carrying device of the present invention.

FIG. 2 is an explanatory diagram of deformation of a magnet wire according to the apparatus of FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Energizing device 2 Support plate 7 Press receiving base 9 Pressurizing structure 10 Hydraulic cylinder 12 Slider 13 Electrode M Magnet wire S Deflection coil winding material

Claims (1)

[Claims] 1. A power supply device arranged between a wire feeder and a winding device that winds a coil winding material supplied from the wire feeder into a coil shape, and is supplied from the wire feeder. A first guide member for guiding a coil winding material formed of one or more single wires, aggregate wires or litz wires into individual single wires, aggregate wires or litz wires, and a first guide member for guiding the coil winding material. Second guide member for reassembling one or more single wires, assembly wires or litz wires as the coil winding material and guiding them to the winding device side, and one or more single wires, assembly guided by the first guide member A wire or litz wire to press to destroy the insulating coating of the one or more single wires, aggregate wires or litz wires and to energize the one or more single wires, aggregate wire or litz wire in which the insulating coating is broken. It is equipped with an energizing means. The energizing device to collect.