JP2897544B2 - Deflection yoke - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a deflection yoke mounted on a television receiver or a display device.

[0002]

2. Description of the Related Art FIG. 9 shows a deflection yoke mounted on a television receiver or a display device. This type of deflection yoke has a horizontal deflection coil mounted along an inner peripheral surface of a bobbin 2 having a bosh shape, and a vertical deflection coil and a core mounted outside the bobbin. The deflection coil of the deflection yoke is formed by winding a single conductor wire as a single core wire into a predetermined shape using a mold or a bobbin. However, according to this method, there is a problem that the winding distribution varies, and it is difficult to perform winding as instructed by design. On the other hand, recently, the size of television receivers and the like and the shift to high-definition televisions have been advanced, and the emergence of high-definition display devices and the standards for color misregistration of the screen of the cathode ray tube of these devices, that is, convergence, etc. As it becomes more stringent, more precise control of the deflection magnetic field is desired. Therefore,
In the conventional method of forming a deflection coil by winding a single conductor wire, it is difficult to wind it as instructed by design, and a new problem has arisen in that the above-mentioned requirements cannot be met.

In order to solve such a problem, the present applicant uses a ribbon-shaped multi-core parallel conductor as shown in FIG. 5 instead of a conventional single coil conductor. The proposed deflection coil is formed.

As the multi-core parallel conductor 15, for example, FIG.
As shown in the figure, a conductor wire 8 made of copper, aluminum, or the like is covered with an insulating layer 4, and a plurality of conductor wires 8 having a thermoplastic adhesive layer 20 formed outside the insulating layer 4 are arranged in parallel and bonded. Is used.

The conductor wires 8 of the multi-core parallel conductor 15 are fixed in order within the multi-core parallel conductor 15, so that the conductor wires 8 are displaced within the multi-core parallel conductor 15, and The multi-core parallel conductor 15 is used, and the multi-core parallel conductor 15 is wound around the coil winding groove 5 in a stacked manner, so that a large displacement or the like of the conductor wire 8 can be eliminated. The fabrication of deflection coils can be expected.

In order to manufacture the above-mentioned deflection coil, a multi-core parallel conductor 15 is formed by connecting a bobbin 2 having a flange 3 as shown in FIG.
Into the coil winding groove 5, and the bottom surface of the coil winding groove 5
Achieved by laminating and winding along 10. The deflection coil formed by using the multi-core parallel conducting wire 15 can greatly improve the characteristics as compared with the related art. As shown in FIG. 7, the bobbin 2 has a groove 5 for winding the crossover portion of the coil on the head side and the tail side, and a distribution portion between the headside and the tail side crossover portion. A winding groove is formed.

[0007]

When the multi-core parallel conductor 15 is wound around the saddle-shaped bobbin 2 by a flyer type winding machine, the multi-core parallel conductor 15 is used for each turn.
Is twisted and wound, it is extremely difficult to wind the multi-core parallel conductor 15 with a flyer-type winding machine.To solve this problem, the applicants have set up a special winding machine. Proposed.

[0008] Using this dedicated winding machine, multi-core parallel conductor 15
7 will be described with reference to FIG. 7. First, the bobbin 2 moves in the direction of the arrow, and at the same time, the nozzle 30 for feeding out the multi-core parallel conducting wire 15 is provided at a predetermined interval on the inner peripheral surface of the bobbin 2. While moving in the X-axis direction so as to face each other, the multi-core parallel conductive wire 15 is inserted into the groove of the right inner peripheral wall surface 25 of the bobbin 2.
Is wound. Next, the nozzle 30 is opposed to the head side connecting wire portion, and the nozzle 30 is rotated to move to the coil winding groove 5 of the connecting wire portion, and the multi-core parallel conductor 15 is inserted into the coil winding groove 5 of the head side connecting wire portion. Is wound. Then, when the head side connecting wire portion is wound, the multi-core parallel conducting wire 15 is wound around the groove of the left inner peripheral wall surface 26, and then the tail side connecting wire portion is wound in the same manner as the head side connecting wire portion.
By repeating this operation, the deflection coils are stacked and wound.

As described above, winding the multi-core parallel conductor 15 around the saddle-shaped bobbin 2 to produce a deflection coil requires complicated winding work, and particularly, the crossover wires on the head side and the neck side. Since the control of the winding operation is complicated and takes a long time to wind the coil, there is a problem that the working efficiency is poor and the productivity of the deflection coil is low.

In addition, this dedicated winding machine is extremely expensive because of its extremely complicated control, and this price is directly reflected in the manufacturing cost of the deflection coil, so that the manufacturing cost is increased.

Further, as shown in FIG.
When the multi-core parallel conductor 15 is wound from the crossover portions 12 and 13 to the coil winding groove 5 of the coil distribution portion 14, the multi-core parallel conductor 15 is not wound along the coil winding groove 5 while adjusting the multi-core parallel conductor 15 with the guide 17. In addition, there is a problem that the multi-core parallel conductive wire 15 is hard to fit in the coil winding groove 5 and has a problem that it is twisted. Further, as shown in FIG. In addition, there is a problem that the multi-core parallel conductor 15 rises and is wound.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to accurately and efficiently wind a winding around a coil winding groove without using an expensive dedicated winding machine. It is to provide a deflection yoke that can be used.

[0013]

The present invention is configured as follows to achieve the above object. That is, the present invention relates to a deflection yoke having a saddle type deflection coil,
The saddle-type deflection coil is wound in a form in which plural windings of the core are separated from each other on the head-side and tail-side crossover portions, and a plurality of windings are provided on the coil distribution portion between the head-side and tail-side crossover portions. It is characterized in that it is wound in the form of a multi-core parallel conductive wire in which the respective windings of the core are arranged side by side in a strip shape and integrated.

[0014]

When forming a saddle-type deflection coil, a plurality of windings are wound around the head-side and tail-side bridging wires in a separated form. Is wound in the form of a multi-core parallel conductive wire in which a plurality of windings are arranged in parallel in a strip shape to form a saddle type deflection coil.

[0015]

Embodiments of the present invention will be described below with reference to the drawings. In the deflection yoke according to the present embodiment, one or both of the horizontal deflection coil and the vertical deflection coil are constituted by saddle-shaped deflection coils, and the saddle-shaped deflection coil is formed by winding a winding having a specific form. It was done.

FIG. 1 shows an example of the configuration of a saddle type deflection coil of a deflection yoke according to this embodiment. In FIG. 1, a crossover portion 1 on a head side and a tail side of a bobbin 2 having a saddle shape is shown.
A coil winding groove 5 is formed in 2 and 13, and a coil distribution portion 14 having the coil winding groove 5 is formed between the crossover portions on the head side and the tail side. As shown in FIG. 1C, the coil winding groove 5 of the coil distribution portion 14 is provided with a winding in the form of a multi-core parallel conductor 15 in which a plurality of windings 1 each having a plurality of cores are arranged in parallel in a band. As shown in FIG. 1 (b), a plurality of windings 1 each having a plurality of cores are wound separately in the coil winding grooves 5 of the connecting wire portions 12 and 13 on the head side and the tail side. Has been.

The winding 1 has a sectional structure as shown in FIG. 4. For example, the periphery of a conductor wire 8 is formed by coating with an insulating layer 4 of polyesterimide or the like, and the periphery of the insulating layer 4 is formed of polyamide or the like. It is formed by coating with an adhesive layer 20 made of a thermoplastic resin.

In order to form the saddle type deflection coil according to the present embodiment using the winding 1, a multi-core parallel conductor manufacturing apparatus 35 as shown in FIG. 2 is used. In the multi-core parallel conductor manufacturing apparatus 35, the windings 1 are wound around the bobbin 21 by the number of cores of the multi-core parallel conductor. The tension controller 22 is arranged between each bobbin 21 and the parallel guide 23 to adjust the tension of each winding 1. The parallel guide 23 has a flanged shape, and the interval between the flanges is set according to the number of the windings 1. The windings 1 are bundled to make the intervals between the windings 1 constant and parallel in parallel. . In the heating zone 24, the surface portion of the adhesive layer 20 formed on the windings 1 is softened and melted by heating means such as an infrared heater, and the windings 1 are bonded in parallel. The heating zone 24 is freely movable in the direction of the arrow. When the heating zone 24 moves in the retreating direction B, the winding 1 is not heated but is fed out and moved as a separate single wire, and the heating zone 24 advances. When the wire 1 is moved in the direction A, the winding 1 is heated in the heating zone 24, connected in parallel and fed out as a multi-core parallel conductor.

The nip roller 18 includes a guide roller 18a having the same shape as the parallel guide 23, and a guide roller 18a.
On the upper side of "a", there is provided a presser 18b for pressing and applying a load. Like the parallel guide 23, the guide roller 18a has a flange interval set according to the number of cores of the multi-core parallel conductive wire 15, and is configured to allow cooling water to pass through as necessary.

The multi-core winding 1 is inserted into the nozzle shaft 29 via the relay bobbin 19, and is fed out of the nozzle 30 to wind the coil winding groove of the bobbin 2.

As shown in FIG. 3, a semicircular hole 28 penetrates the nozzle 30, and the nozzle 30 is rotatably attached to a nozzle shaft 29. When the multi-core parallel conductive wire 15 is to be paid out, it is to be fed out from the straight portion 27 side, and when a plurality of discrete single wire aggregates is to be fed out, it is to be fed out from the circular portion 31 side.

Next, the operation of the manufacturing operation of the saddle type deflection coil of this embodiment will be described. First, as shown in FIG.
The saddle-shaped bobbin 2 is fixed to a bobbin holding portion of a fryer-type winding machine (not shown). Next, the multi-core parallel conductor manufacturing apparatus 35 is driven, the plurality of windings 1 are paid out from the wire feeding bobbin 21, and are bundled by the parallel guide 23 via the tension controller 22. When the bundled winding 1 is wound around the coil distribution section 14, it passes through the heating zone 24 corresponding to the position and length at which the coil distribution section 14 is wound, and softens and fuses the thermoplastic adhesive layer 20 to form the multi-core parallel conductor 15. And the multi-core parallel conductive wire 15 is wound around the coil distribution portion 14.

Further, the winding 1 is connected to the head side and the tail side of the crossover part.
When winding the windings 12 and 13, the heating zone 24 is moved in the retreating direction in accordance with the position and the length of the crossover portions 12 and 13, and the winding 1 is not passed through the heating zone 24, and each of the plural cores is wound. 1 is wound around the connecting wires 12 and 13 in the separated form. Thereby, a saddle type deflection coil is manufactured.

According to this embodiment, a plurality of single wires are wound around the crossover portions 12 and 13 of the bobbin 2 using a flyer type winding machine, and a multi-core parallel conductive wire is wound around the coil distribution portion 14.
Since the winding is wound around the coil distribution section 14 from the crossover sections 12 and 13, the winding guide 17 as in the proposed example is used.
The winding 1 can be wound around the coil distribution portion 14 without disengaging from the coil winding groove 5 without the above. In addition, crossover part
In the case of 12 and 13, multiple single wires are wound in a separated form, so there is no lifting of the wire, the twist of the wire is eliminated, and in the case of the proposed example, the control of the winding operation is complicated and it takes a long time to wind However, in the case of this embodiment, the control of the winding operation is simplified,
The winding time can be significantly reduced.

Furthermore, when the multi-core parallel conductor 15 is wound around the crossover as in the proposed example, the width of the coil winding groove 5 must be the same as the width of the multi-core parallel conductor 15. In the case where multiple single wires are wound around the crossover part in a disjointed form, there is no restriction on the coil winding groove width, and the bobbin shape of the crossover part can be freely designed. The coil winding collar 3 'shown therein can be omitted.

Furthermore, since there is no need to use an expensive dedicated winding machine as in the proposed example, the winding can be performed by an inexpensive flyer-type winding machine, so that a saddle-type deflection coil can be formed at low cost. Become.

The present invention is not limited to the above-described embodiment, but can adopt various embodiments. For example, in the above-described embodiment, each of the plurality of cores is formed with a winding in a specific form having a part in the form of a single wire and a part in the form of a multi-core parallel conductor alternately in conjunction with the winding machine. Alternatively, a winding having the above-described specific form may be separately prepared in advance and attached to a winding machine when manufacturing a deflection coil.

In the above embodiment, the bobbin 2 is used as the saddle-shaped bobbin. However, a die may be used as the bobbin. In this case, it is necessary to release the coil from the mold after winding the winding.

[0029]

According to the present invention, a plurality of cores are wound in a separated form around the head-side and tail-side crossover portions, and a multi-core parallel conductor is wound around the coil distribution portion. When winding the winding from the crossover portion to the coil distribution portion, the winding guide can be wound around the distribution portion without deviating from the coil distribution portion without the need for the winding guide as in the proposed example.

Further, since a plurality of single wires which are not in the form of a multi-core parallel conductive wire are wound around the crossover wire portion, the wire does not rise and the twist of the wire is eliminated.

Further, since there is no need to use an expensive dedicated winding machine as in the proposed example, the winding can be performed by an inexpensive conventional flyer-type winding machine, so that a saddle-type deflection coil can be formed at low cost. .

[Brief description of the drawings]

FIG. 1 is an explanatory diagram of a configuration example of a deflection coil of a deflection yoke according to the present embodiment.

FIG. 2 is an explanatory diagram of a winding operation state of a deflection coil of a deflection yoke according to the embodiment.

FIG. 3 is an explanatory diagram of one embodiment of a nozzle that feeds out a winding.

FIG. 4 is an explanatory sectional view of a winding of the saddle type deflection coil according to the embodiment.

FIG. 5 is an explanatory diagram of an example of a multi-core parallel conducting wire.

FIG. 6 is a perspective explanatory view showing a state in which a multi-core parallel conductive wire is wound around a crossover portion of a bobbin of a deflection yoke around a coil distribution portion.

FIG. 7 is an explanatory diagram of a winding operation of a multi-core parallel conductive wire of a proposed example.

FIG. 8 is an explanatory diagram of a proposal example of manufacturing a deflection coil by stacking multi-core parallel conductive wires.

FIG. 9 is an explanatory diagram of a general deflection yoke.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Winding 2 Bobbin 4 Insulation layer 12 Head side connection part 13 Tail side connection part 14 Coil distribution part 15 Multi-core parallel conductor 20 Thermoplastic adhesive layer 24 Heating zone 30 Nozzle

──────────────────────────────────────────────────続 き Continued on the front page (58) Fields surveyed (Int.Cl. ⁶ , DB name) H01J 9/236 H01J 29/76

Claims (1)

(57) [Claims] In a deflection yoke provided with a saddle-type deflection coil, the saddle-type deflection coil is wound around a crossover portion on a head side and a tail side in a form in which a plurality of cores are separated from each other. A deflection yoke characterized by being wound in the form of a multi-core parallel conductive wire in which a plurality of windings are arranged in parallel in a strip shape and integrated into a coil distribution portion between a crossover portion on a side portion and a tail side.