JPS645349Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE PRESENT EMBODIMENT The present invention relates to a deflection yoke device for use in a television receiver, an aircraft picture tube display, or the like.

Recently, as deflection yoke devices used in television receivers, aircraft picture tube displays, etc., multiple grooves are formed along the axial direction on the inner surface of the core in order to improve deflection sensitivity and performance. ,
A structure in which a deflection coil is inserted into a groove and wound in a hollow shape on the inner surface of a core has been developed and put into practical use.

In the conventional deflection yoke device having the above configuration,
It is constructed by fitting a coil that has been pre-wound into a saddle shape and press-formed using a jig such as a pin into a groove provided on the inner surface of the core, which eliminates variations in the coil shape during press-forming. It is large, the deflection characteristics are unstable, and the number of assembly steps increases.
It had various drawbacks.

The present invention relates to a deflection yoke device aimed at eliminating the above-mentioned drawbacks, and has a configuration that ensures that the winding positions of both vertical and horizontal deflection coils are regulated to predetermined positions, and that stable deflection characteristics can be obtained. , relates to a highly sensitive and high performance deflection yoke device.

Hereinafter, one embodiment of the deflection yoke device of the present invention will be described in detail with reference to the drawings. In FIGS. 1 to 3, reference numeral 1 denotes a core made of a magnetic material with an inner surface formed in a morning glory shape and an outer surface formed in a cylindrical shape. A plurality of grooves 2 are formed along the axial direction. The groove 2 is located at the front end 1 of the inner surface of the core 1, as shown in FIG.
A plurality of jetties 3 continuously extending from a to the rear end 1b are formed between the jetties 3. Ring-shaped guide portions 4 and 5 are fixedly attached to each opening at the front end 1a and rear end 1b of the core 1, which has a groove 2 formed on its inner surface. Of the ring-shaped guide parts 4 and 5, the ring-shaped guide part 4 attached to the front end 1a opening of the core 1 has a flange-shaped base 4a, as shown in FIG.
A ring portion 4b that extends continuously in the axial direction from the inner circumferential edge of the base portion 4a, and a plurality of coil fittings formed corresponding to the grooves 2 of the core 1 (at the front end 1a) along the axial direction of the ring portion 4b. Groove 4c and ring portion 4
It consists of claw parts 4d and 4e formed at the tip and approximately the middle part of the outer circumferential surface of ring part 4b, and has a substantially mountain-shaped cross section.
Two crossover wire storage grooves 6a and 6b are formed between the and claw portion 4e and between the claw portions 4e and 4d, and by fitting the ring portion 4b to the outer periphery of the front end 1a of the core 1, the core 1 It is attached and fixed to the opening of the front end 1a. Next, the rear end 1b of the core 1
The ring-shaped guide part 5 attached to the opening has a sixth
As shown in the figure, a fixing part 5a having a substantially L-shaped cross section and consisting of a horizontal piece 5a1 and a vertical piece 5a2 that fit on the outer periphery and opening end surface of the rear end 1b of the core 1, and the inner peripheral edge of the vertical piece 5a1 of the fixing part 5a. a ring part 5b extending continuously in the axial direction from the ring part 5b; a plurality of coil fitting grooves 5c formed along the axial direction of the ring part 5b corresponding to the grooves 2 (at the rear end 1b) of the core 1; The ring part 5b consists of claw parts 5d and 5e formed at the tip and approximately the middle part of the outer peripheral surface of the ring part 5b.
Two connecting wire storage grooves 7a and 7b are formed between the vertical piece 5a1 of the fixed part 5a and the claw part 5e and between the claw parts 5e and 5d, and the core 1 is inserted through the fixed part 5a. It is attached and fixed to the opening of the rear end 1b. A vertical deflection coil 8 and a horizontal deflection coil 9 are respectively wound in a saddle shape around a core 1 having ring-shaped guide portions 4 and 5 fixedly attached to openings at the front end 1a and rear end 1b. Among these, the vertical deflection coil 8 is connected to the groove 2 on the inner surface of the core 1, as shown in FIG.
The ring is fitted into a predetermined groove 21 of the ring and wound from the rear end 1b to the front end 1a, and is fitted and locked in the coil fitting groove 4c1 corresponding to the groove 21 of the ring-shaped guide part 4 at the front end 1a. A crossover wire storage groove 6 formed between the base 4a and the claw portion 4e of the shaped guide portion 4
a, and goes around the ring part 4b to a predetermined coil fitting groove 4c2.
After the core 1 is fitted and locked, it is fitted into the predetermined groove 22 on the inner surface of the core 1 again and wound from the front end 1a to the rear end 1b, and at the rear end 1b, as shown in FIG. The coil fitting groove 5c1 corresponding to the groove 22 of the ring-shaped guide part 5 is fitted and locked, and the wire is inserted into a predetermined coil fitting groove by passing through the connecting wire storage groove 7a formed between the vertical piece 5a1 of the ring-shaped guide part 5 and the claw part 5e. 5c
2 on the ring part 5b, and after being fitted and locked in a predetermined coil fitting groove 5c2, the coil is again wound around the groove 23 on the inner surface of the core 1 toward the front end 1a. , the coil fitting grooves 4c and 5c of the ring-shaped guide portions 4 and 5, and the crossover wire storage grooves 6a and 7a, and are symmetrically wound in a pair of hollow shapes. After a vertical deflection coil 8 is wound around the inner surface of the core 1 in a hollow shape, a horizontal deflection coil 9 is wound around the inner surface of the core 1 in a hollow shape while overlapping the vertical deflection coil 8 with an insulating material (not shown) interposed therebetween. Wind. The horizontal deflection coil 9 is inserted into the groove 2 on the inner surface of the core 1, as shown in FIG.
The ring-shaped coil is fitted into a predetermined groove 25 and wound from the rear end 1b to the front end 1a, and at the front end 1a is fitted and locked in the coil fitting groove 4c5 corresponding to the groove 25 of the ring-shaped guide part 4. The ring portion 4 passes through the crossover wire storage groove 6b formed between the claw portions 4e and 4d of the guide portion 4 to the predetermined coil insertion groove 4c6.
After passing around the coil-fitting groove 4c6 and locking it in the coil-fitting groove 4c6, the coil is again fitted into a predetermined groove 26 on the inner surface of the core 1 and wound from the front end 1a to the rear end 1b, and at the rear end 1b, As shown in FIG. 3, the coil fitting groove 5c5 corresponds to the groove 26 of the ring-shaped guide portion 5.
The coil fitting groove 5c6 is inserted into and locked into the ring portion 5b, passing through the connecting wire storage groove 7b formed between the claw portions 5e and 5d of the ring-shaped guide portion 5, and going around the ring portion 5b to a predetermined coil fitting groove 5c6. The coil fitting groove 4c of the ring-shaped guide portions 4 and 5 is inserted and locked into the inner surface of the core 1, and then wound again in the groove 27 on the inner surface of the core 1 toward the front end 1a. ,5
c. The vertical deflection coils 8 are wound symmetrically in a pair of hollow shapes at positions 90 degrees apart from the vertical deflection coils 8 through the crossover wire storage grooves 6b and 7b.

(In Figures 2 and 3, the vertical deflection coil 8
is wound inside the horizontal deflection coil 9, and only the connecting wire of the horizontal deflection coil 9 is shown in the drawing. ) Here, as the horizontal deflection coil 9, as shown in FIG. The adhesive layer 9c is arranged around the outer periphery. A wire made by fixing each copper wire 9b (covered and wrapped), or a plurality of copper wires 9b having an insulating layer 9a and an adhesive layer 9c on the outer periphery and twisting them together as shown in FIG. If you wind the copper wire using Ritsutsu wire, the surface area of the copper wire will be approximately
2.2 times, and as the surface area increases, due to the skin effect of the copper wire, for example, when a high frequency deflection current of 65KHz is supplied to the horizontal deflection coil 9 to obtain a high quality image, the copper wire of the coil generates heat. is 15%
This can be reduced by ~20%.

In addition, in the deflection yoke device of the present invention, the number of grooves on the inner surface of the core, the shape of the ring-shaped guide portion, and the attachment means to the core shown in the main text and drawings,
It goes without saying that the winding position and winding method of the deflection coil are merely examples of the deflection yoke device of the present invention, and can be changed as necessary.

As described above, according to the deflection yoke device of the present invention, a plurality of coil insertion grooves are formed in the front end and rear end openings of the core, in which a plurality of grooves are formed in the inner axial direction, corresponding to the grooves of the core. is formed along the axial direction,
In addition, the ring-shaped guide portion formed on the outer surface in the circumferential direction is fixedly attached to the two connecting wire storage grooves, and the core groove,
Vertical and horizontal deflection coils are wound in a hollow shape on the inner surface of the core through the coil insertion groove and crossover wire storage groove of the ring-shaped guide portion, and as a result, the following effects are produced. In other words, by fitting the deflection coil into the grooves of the core and the grooves of the ring-shaped guide part and winding it directly on the inner surface of the core in a hollow shape, the winding position of the coil is reliably regulated at a predetermined position, and the coil shape is However, there is no possibility of variation, and stable deflection characteristics can be obtained. In addition, by forming grooves on the inner surface of the core, the surface area on the inner surface of the core becomes larger, and the heat generation of the core can be suppressed to a lower level than that of a core without grooves on the inner surface, so there is less concern that it will adversely affect the characteristics. It is what it is. Furthermore, by fitting the deflection coil into the groove of the core and winding it, the inner surface of the core (the surface of the jetty forming the groove) can be brought closer to the picture tube surface by the thickness of the coil. , the concentration efficiency of the magnetic flux generated by the deflection yoke device for the picture tube (electron beam) is improved, and the deflection efficiency is improved, which makes it possible to reduce the number of turns of the deflection coil, resulting in material-saving deflection. A yoke device can be obtained.
As described above, the deflection yoke device of the present invention produces various effects, and in particular, by using a wire as the horizontal deflection coil, it is possible to supply high-frequency horizontal deflection current, which improves television reception. It is extremely effective in practical use as a high-sensitivity, high-performance deflection yoke device for aircraft picture tube displays, etc.

[Brief explanation of the drawing]

FIG. 1 is a partially sectional side view of a deflection yoke device according to an embodiment of the present invention, and FIG. 2 is a front view thereof.
Figure 3 is a rear view, Figure 4 is a front view of the core, Figures 5 and 6 are perspective views of the ring-shaped guide, and Figures 7 and 8 are used for horizontal deflection coils. FIG. 3 is a cross-sectional configuration diagram of the Ritsu wire. 1...Core, 1a...Core front end, 1b...Core rear end, 2...Groove, 4, 5...Ring-shaped guide part,
4c, 5c...Coil insertion groove, 6a, 6b, 7
a, 7b... crossover wire storage groove, 9... horizontal deflection coil.

Claims (1)

[Claims for Utility Model Registration] (1) A plurality of coil insertion grooves are formed in the front and rear end openings of the core, each of which has a plurality of grooves formed in the axial direction of the inner surface, in the axial direction, corresponding to the grooves of the core. a ring-shaped guide portion formed along the circumferential outer surface of the ring-shaped guide portion and having two crossover wire storage grooves formed on the outer surface in the circumferential direction;
A deflection yoke device characterized in that vertical and horizontal deflection coils are wound in a hollow shape on the inner surface of the core through a groove in the core, a coil insertion groove in the ring-shaped guide portion, and a crossover wire storage groove. (2) A practical use characterized in that a Ritsutsu wire is used as a horizontal deflection coil, which is made by twisting together a plurality of copper wires each having an insulating layer and fixing each copper wire with an adhesive layer. A deflection yoke device according to claim 1 of the patent registration claim.