JPS6030057B2 - Deflection yoke device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a deflection yoke device used in television receivers and the like, and in particular, allows assembly of a deflection yoke by integrally molding a coil separator.

Conventionally, a deflection yoke device has a set of semicircular coil separators 4 and 4' each consisting of a front enlarged part 1, a conical cylinder part 2, and a rear enlarged part 3, as shown in FIG. and each coil separator 4, 4'
The rear green part 6 of the saddle-shaped horizontal coil 5 is connected to the rear enlarged part 3, the front green part 7 is connected to the front enlarged part 1, and the side conductor groups 8, 8' are connected to the conical cylinder part 2, respectively, on the inner surface of the saddle-shaped horizontal coil 5. After setting up the silk, the coil separators 4 and 4' are butted together, and each coil separator 4,
Engagement protrusion 9 formed on 4'. , 92, 93, 94 and the engagement grooves 10, , 102, 103, 104 are engaged to be assembled and fixed.

A vertical coil (not shown) which is toroidally wound around a pair of semicircular cylindrical cores is attached and fixed to the outer peripheral surface of the conical cylinder portion 2 of the combined coil separators 4, 4'. By the way, in such conventional deflection yoke devices, the coil separators are molded from thermoplastic resin with a certain rigidity, such as polypropylene or Noryl, but each coil separator is a semi-circular piece with only one side. Because of this, molding distortion is likely to occur due to shrinkage during molding, and due to deformation due to this distortion, there are many gaps in the dimensions of individual molded products. The phase relationship of each coil was not constant, and the performance as a deflection yoke also varied greatly.

Furthermore, after attaching a saddle-shaped horizontal coil to each coil separator, the two coil separators are butted against each other and assembled using an engaging and fixing means, but the assembly work of such a pair of coil separators is particularly difficult. The engagement between the engagement protrusion and the engagement groove requires mechanical strength after assembly, that is, a fairly large engagement strength to prevent wobbling, so the engagement protrusion and the engagement groove are configured to be tightly coupled together. Therefore, a certain amount of force is required during the engagement work when roughly assembling the parts, making it difficult to assemble smoothly without considerable skill, resulting in extremely poor workability.

For this reason, a lot of assembly time is required, which is not desirable in the mass production process. Furthermore, even if the combination of a pair of coil separators is equipped with an effective engagement mechanism, since it is a combination of separate stopper pieces, sufficient mechanical strength cannot be obtained after assembly, resulting in wobbling after assembly. This had a negative impact on performance.

In addition, the length relationship between the coil separator and the saddle-shaped horizontal coil, especially in the axial direction, has been designed to allow for some dimensional variation and ease of assembly, so that when the silk is erected, there is a certain amount of space in the forehead direction. In order to correct this, the saddle type horizontal coil and the coil separator are fixed with adhesive or adhesive tape, which also causes poor workability. It has become.

In order to eliminate such drawbacks, the present invention provides a deflection yoke device assembled with an integrally molded coil separator, and aims at improving workability, improving product precision, and achieving a resource-saving structure. be.

Embodiments of the present invention will be described in detail below with reference to the drawings.

2 and 3 show a perspective view, a front cross-sectional view, and a side cross-sectional view, respectively, of a coil separator according to the present invention. A pair of upright pieces 14, 14' facing each other so as to have portions 13, 13' are integrally formed. This standing piece 14
, 14' extend so as to be narrower than the inner diameter of the through hole 11 at tide. A protruding strip 15 is formed at the center of the inner surface of each upright piece 14, 14' to regulate the separation position of the pair of saddle-shaped horizontal coils. The vertical 4 of each of these upright pieces 14, 14'
- A rear enlarged portion 16 is integrally and continuously formed at the upper end green. This rear enlarged portion 16 includes garden slopes 17, 17' integrally formed from the tips of the upright pieces 14, 14', and vertical pieces 18, 18' extending integrally from the bottom plates 17, 17', respectively. It is constituted by a top plate 19 that is integrally formed between the upper ends of the vertical pieces 18, 18'. A neck tightening cylindrical portion 21 having a through hole 20 is formed in the center of the upper plate 19 . The bottom plate 17, 17', the vertical pieces 18, 18' and the top plate 19 form a rear green storage bag portion 22 of the saddle-shaped horizontal coil.

The front and rear closed portions 13, 13' formed by the upright pieces 14, 14' are formed when the saddle-shaped horizontal coil 5 is inserted from the through-hole 11 side of the front enlarged portion 12 of the coil separator, for example, as shown in FIG. , the rear edge 6 of the saddle-shaped horizontal coil 5 is closed such that it can be delivered into the bag portion 22 without any hindrance.

The coil separator having such a structure is integrally molded from a thermoplastic resin having a certain rigidity, such as polypropylene or Noryl. To attach a saddle-shaped horizontal coil to this coil separator, as shown in FIG. If you insert the coil separator in the direction of the arrow in the figure with the coils facing each other,
The rear green portion 6 of the saddle-shaped horizontal coil 5 passes through the entrance portions 13 and 13' of the coil separator, the rear edge 6 of the saddle-shaped horizontal coil 5 enters the bag portion 22 of the coil separator, and the front edge 7 supports the inner peripheral surface of the front enlarged portion 12 of the coil separator.

This state is the state shown in FIG. However, if this continues, the saddle-shaped horizontal coil will separate from the coil separator, so the saddle-shaped horizontal coil is fixed to the outside of the coil separator using a spacer as shown in FIGS. 4 to 7.

Note that the rear enlarged portion 16 in FIG. 2 and the rear enlarged portions shown in FIGS. 4 and subsequent figures have different structures in order to serve as fixing means for the spacer.
That is, the bottom plates 17, 17 of the bag portion 22 of the rear enlarged portion 16
The spacer 30 is press-fitted from both sides into the gap d formed between the rear edge 6 of the saddle-shaped horizontal coil 5 and the rear edge 6 of the saddle-shaped horizontal coil 5. This subesa 3
0 consists of a main body part 31 having a tapered tip to be press-fitted into the gap d, and leg pieces 32, 32' projecting from both ends of this main body part 31. That is, the leg pieces 32, 32' are press-fitted by the protrusion 33 between the lip piece 23 and the locking piece 24 formed on the outside of the bag portion 22, and the claw 34 at the tip thereof locks with the locking piece 24. and fixed. Slits 35, 35' are formed between the main body portion 31 of the coil baser 30 and the leg pieces 32, 32' at both ends, and these slits 35, 35' engage with the vertical pieces 18, 18' of the coil baser. . A terminal fitting 36 is formed at the end of the spacer 30, and also serves as a terminal plate for drawing out the lead wire of the deflection coil to the outside. By press-fitting the spacer 30, the saddle-shaped horizontal coil 5 is securely fixed to the coil separator in the saddle direction.

Finally, as shown in FIG. 8, the toroidal vertical coil 40 is fixed to the outer periphery of the conical cylinder portion of the coil separator, thereby completing the process.

As shown in FIG. 8, the baser 30 can also be used as a fixture for the vertical coil 40 by integrally projecting an elastic tongue piece 37 downward from the main body portion 31.

According to the deflection yoke device having such a configuration, the saddle-shaped horizontal coil can be easily inserted and arranged from the front enlarged portion.
By using a jig etc., for example, as shown in Fig. 2,
By arranging a pair of saddle-shaped horizontal coils and covering them with a coil separator from above in the direction of the arrow, it becomes possible to insert and arrange the pair of coils into the coil separator at the same time, which significantly improves assembly work efficiency and allows for automatic assembly at the same time. It is possible.

In addition, the integrated coil separator can significantly reduce manufacturing costs compared to conventional coil separators that are made by combining separate pieces.Furthermore, since the coil separator is a symmetrical continuous integrally molded coil separator, it is possible to It is difficult to cause deformation or distortion, has excellent dimensional stability, has increased overall rigidity compared to a combination of separate pieces, has less gutter, etc. as a coil separator, and maintains a constant positional relationship of each coil. It is expected that the performance of the deflection device will be improved.

Furthermore, the saddle-shaped coil can be easily fixed in the axial direction by press-fitting a single spacer, and by using this spacer as a wiring terminal board, the number of parts can be reduced and the configuration of functional parts can be reduced. It is possible to do this.

In addition, as shown in FIG. 4, according to the embodiment described above, the closure 13
, 13' are wide open, so that the side conductor groups 8, 8' of the saddle-shaped horizontal coil are exposed to the outer surface of the coil separator, making it difficult to insulate them from the vertical toroidal coil attached to the outer surface of the coil separator. It may not be possible to maintain it.

In such a case, as shown in FIG. 9, the upright pieces 14, 14'
By providing the hinge tongue pieces 51 through the slits 50 on both sides of the coil, the hinge tongue pieces 51 do not become a hindrance when installing the saddle type horizontal coil outside the coil separator.
It can cover the side conductor groups of the saddle-shaped horizontal coil.

Furthermore, as shown in FIG. 10, the upper end of the hinge tongue piece 51 is bent into an L-shape to form a bent portion 52, so that when a saddle-shaped horizontal coil is attached to the coil separator. , the rear twill portion 6 of the saddle-shaped horizontal coil is located at this bent portion 52.
It is possible to prevent the saddle-shaped horizontal coil from slipping out from the coil separator. As described above, the present invention provides a deflection yoke device that can improve workability, improve precision, and save resources.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing an assembled state of a conventional deflection yoke, FIG. 2 is a perspective view showing a coil separator of a deflection yoke device according to the present invention, and FIG. Fig. 4 is a perspective view showing a state in which a saddle-shaped coil is attached to a coil separator, Fig. 5 is a plan view and side view showing a subaper, and Fig. 6 is a partial cross-sectional view of the coil separator showing a state in which a subaper is attached. Figure 7 is also a side view,
FIG. 8 is a side view showing another embodiment, FIG. 9 is a perspective view of a coil separator showing another embodiment, and FIG. 10 is a partial perspective view of a coil separator showing another embodiment. 5... Saddle-shaped horizontal coil, 6... Rear green part, 7... Front green part, 8... Side conductor group, 1 1...・Through hole, 12...Front enlarged part, 1
3... Opening □ part, 14... Standing piece, 16
. . . Rear enlarged portion, 30. . . . Subesa are shown respectively. Figure 1 Figure 3 Figure 4 Figure 2 Figure 5 Figure 6 Figure 7 Figure 8 Figure 9 Figure 10

Claims (1)

[Scope of Claims] 1. A front enlarged portion with a hole in the center, a pair of opposing upright pieces extending in a tapered shape from the inner edge of the through hole so as to have an opening in the front and back, and integral with the tip of the upright piece. A coil separator integrally formed with a rear enlarged portion having a rear edge storage portion of a saddle-shaped coil formed in the shape of a coil separator; a pair of saddle-shaped coils, the rear edge of which is fixed to the bag portion of the rear enlarged portion, the side conductor group to the upright piece portion, and the front edge of which is arranged and fixed to the front enlarged portion; A deflection yoke device comprising a spacer press-fitted between the rear enlarged surface of the coil separator and the rear edge of the saddle-shaped coil as means for fixing to the coil separator. 2. The deflection yoke device according to claim 1, wherein hinged tongue pieces are formed through slits on both side edges of the upright piece. 3. The deflection yoke device according to claim 1, wherein the spacer has an elastic tongue piece that presses and fixes a toroidal coil that is fitted onto the outer peripheral surface of the coil separator. 4. The deflection yoke device according to claims 1 and 3, wherein the spacer is a terminal plate for coil wiring.