JPH0528677Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) The present invention relates to a deflection yoke, and in particular to a deflection yoke that can reliably insulate between a horizontal deflection coil and a vertical deflection coil. be.

(Prior Art) The deflection yoke of a cathode ray tube display device (hereinafter referred to as CRT) in a television receiver or the like has a slot (castrate yoke) on its inner surface, as described in, for example, Japanese Patent Publication No. 49-23050. A vertical deflection coil (hereinafter referred to as V winding) is attached to a yoke frame consisting of a core having a groove (groove) and a plurality of hook-shaped claws annularly provided at both ends of the core at the same intervals as the slots. (called a line)
and horizontal deflection coil (hereinafter referred to as H winding)
It is constructed by winding.

The V-winding is wound around the yoke frame by repeatedly passing the winding into one slot of the core, hanging it on a claw at the end of the core, and guiding it into the other slot of the core. Ru.

The H winding is wound on top of the V winding after the V winding is wound.

As mentioned above, the H winding is wound so as to be directly overlapped on top of the V winding which is wound around the yoke frame. If tiny pinholes in the coatings of the H winding and the V winding coincide with each other, there is a risk that the insulation between the windings will be destroyed.

In order to eliminate such concerns, for example, Japanese Utility Model Application Publication No. 61-56757 proposes that after winding a V winding in a slot formed in the core, a band-shaped insulating member (insulating guide) made of an insulating material is wound. ) in each of the slots and then winding an H winding on the insulating member.

As a result, an insulator is interposed between the V winding and the H winding, thereby preventing dielectric breakdown between each winding.

(Problems to be solved by the invention) The above-mentioned conventional techniques had the following problems.

That is, in the technique described above, the strip-shaped insulating member must be individually placed and attached to each of the plurality of slots formed in the core, which is cumbersome to attach.

The present invention has been made to solve the above-mentioned problems.

(Means and effects for solving the problem) In order to solve the above problem, the present invention includes a plurality of band-shaped spacers that close approximately the middle portions of the bottom and top of each slot, and a plurality of band-shaped spacers that are integrated with each of the band-shaped spacers. It is characterized in that it forms an insulating spacer with a circularly formed annular spacer, and this insulating spacer is arranged between the V winding and the H winding.

In this way, since the plurality of strip spacers are integrally formed with the annular spacer, all the strip spacers can be placed in each slot of the core by simply inserting the insulating spacer from the end of the core. .

(Example) The present invention will be described in detail below with reference to the drawings.

FIG. 5 is a partially cutaway side view of an embodiment of the present invention;
FIG. 6 is a schematic plan view of FIG. 5. In FIG. 6, the V winding, the H winding, and the first to fourth
A first insulating spacer 60 and a second insulating spacer 70, which will be described below with respect to the figures, have been omitted.
In each figure, the inner wall surface of the core 2 has slots 21 for arranging the V winding and the H winding.
Multiple holes are drilled at equal intervals.

A first insulating plate 1 is attached to the front end of the core 2, that is, the end on the front side of the CRT to which the deflection yoke is attached.

The first insulating plate 1 is molded from an insulating material such as resin, and its inner diameter is set to be slightly larger than the outer diameter of the core 2. At the front end of the first insulating plate 1, the same number of grooves 17 as the slots 21 are formed at equal intervals, the grooves 17 being smaller than the front end cross-sectional shape of the slots 21 formed in the core 2. .

FIG. 7 is a side view of the first insulating plate 1 viewed from the center, and FIG. 8 is a detailed view of section A in FIG. 5. 7 and 8, the same reference numerals as in FIG. 5 represent the same or equivalent parts.

In FIG. 7, a cover member 16 is formed on the inner wall surface of the first insulating plate 1 so as to extend along the groove 17 and the front end of the first insulating plate 1. As shown in FIG. The inner diameter of the cover member 16 is set smaller than the outer diameter at the front end of the core 2, and the outer shape of the portion of the cover member 16 along the groove 17 is the same as the slot 2 formed in the core 2.
It is set to be slightly smaller than the cross-sectional shape on the front end side of No. 1.

As a result, if the front end of the core 2 is inserted from the side where the groove 17 is not formed (the rear end side) of the first insulating plate 1, each slot 21 of the core 2 is inserted.
The protrusions between the slots 21 can be fitted into the cover member 16, as shown in FIG.

Returning to FIGS. 5 and 6, a flange 11 is formed on the outer periphery of the rear end of the first insulating plate 1. As shown in FIG. The flange 11 also has hooks 14 and 15 for winding and fixing the ends of the V winding and the H winding.
is formed. Further, the flange 11 has a notch 1 for positioning and fixing a first insulating spacer 60, which will be described later with reference to FIGS. 1 and 2.
1A is formed.

An upper claw (winding guide) 13 and a lower claw (winding guide) 1 are arranged between the grooves 17 on the outer periphery of the first insulating plate 1 from the front end side of the first insulating plate 1.
2 is formed. In this example, the planar shape of the upper claw 13 and the lower claw 12, that is, the sixth
The shapes to be shown in the figures are each identical.

A second insulating plate 3 is attached to the rear end of the core 2.

The second insulating plate 3 is molded from an insulating material such as resin, for example.

At the flange 31 of the second insulating plate 3,
A circular opening 38 having an outer diameter that is approximately the same as the inner diameter of the rear end of the core 2 is provided on the contact surface with the rear end of the core 2.
is formed. The circular opening 38 has a groove 37 smaller than the cross-sectional shape of the rear end of the slot 21 formed in the core 2.
They are formed at equal intervals so as to correspond to 1.

FIG. 9 is a plan view of the second insulating plate 3, and FIG. 10 is a bottom view of the second insulating plate 3. 9th and 10th
In the figure, the same reference numerals as in FIGS. 5 and 6 represent the same or equivalent parts.

9 and 10, a cover member 36 is formed along the groove 37 on the surface of the second insulating plate 3 that comes into contact with the core 2. As shown in FIGS. The cover member 3
The outer shape of the slot 6 is set to be slightly smaller than the cross-sectional shape of the rear end side of the slot 21 formed in the core.

As a result, the cover member 36 of the second insulating plate 3
can be fitted into the rear end of the slot 21 formed in the core 2.

A second insulating spacer 7, which will be described later with reference to FIGS. 3 and 4, is provided on the flange 31 of the second insulating plate 3.
A notch 31A is formed for positioning and fixing 0.

Returning to FIG. 5, each groove 3 of the second insulating plate 3
7, an upper claw (winding guide) 33 and a lower claw (winding guide) are arranged from the rear end side of the second insulating plate 3.
32 is formed. In this example, the planar shapes of the upper claw 33 and the lower claw 32, that is, the shapes shown in FIG. 10, are the same.

Next, the first and second insulating spacers 60 and 70 arranged between the V winding and the H winding will be explained.

FIG. 1 is a plan view of the first insulating spacer 60, and FIG. 2 is a side view of FIG. 1.

In FIGS. 1 and 2, the first insulating spacer 60
basically consists of spacers 61 and 62 molded from an insulating material such as resin.

The spacer 61 is an annular spacer formed to fill the gap between the surfaces 12S of the lower claws 12 on the upper claw 13 side formed on the first insulating plate 1 shown in FIG. The spacer 62 is a strip-shaped spacer that is integrally molded with the spacer 61 so as to cover almost the entirety of each slot 21 formed in the core 2 and close the intermediate portion between the bottom surface and the top of the slot 21. .

In this embodiment, a reinforcing plate 63 is formed around the outer periphery of the spacer 61. The diameter of the outer periphery of the reinforcing plate 63 is, for example, that of the first insulating plate 1.
The diameter of the flange 11 is the same as that of the flange 11.

A plurality of support plates 64 are formed on the reinforcing plate 63. The support plate 64 contacts the flange 11 of the first insulating plate 1 when the first insulating spacer 60 is fitted to the first insulating plate 1,
This allows the spacer 61 to be placed so that its surface is aligned with the lower claw 1.
2, so as to be substantially flush with the surface 12S (FIG. 5) on the upper claw 13 side.

The reinforcing plate 63 further includes a plurality of engaging members 6.
5 is formed. The engagement member 65 is a first
Notch 1 formed in flange 11 of insulating plate 1 of
1A, and a wedge-shaped member 66 is formed at the tip of the engaging member 65.

The engaging member 65 has a cross-sectional shape that is substantially the same as the shape of the notch 11A. Also, the rear end surface of the wedge-shaped member 66 (the surface on the reinforcing plate 63 side)
The distance between the support plate 64 and the tip of the support plate 64 is set to be approximately equal to the plate thickness of the flange 11.

3 is a plan view of the second insulating spacer 70, and FIG. 4 is a side view of FIG. 3.

In FIGS. 3 and 4, the second insulating spacer 70
basically consists of spacers 71 and 72 molded from an insulating material such as resin.

The spacer 71 is an annular spacer formed to fill the gap between the surfaces 32S of the upper claws 33 of each of the lower claws 32 formed on the second insulating plate 3 shown in FIG. The spacer 72 is arranged so as to cover the rear end of each slot 21 formed in the core 2 and the tip of the spacer 62 of the first insulating spacer 60 fitted to the first insulating plate 1. This is a strip-shaped spacer integrally molded with 71.

In this embodiment, a reinforcing plate 73 is formed around the outer periphery of the spacer 71. The diameter of the outer periphery of the reinforcing plate 73 is, for example, the diameter of the second insulating plate 3.
The diameter of the flange 31 is the same as that of the flange 31.

A plurality of support plates 74 are formed on the reinforcing plate 73. The support plate 74 contacts the flange 31 of the second insulating plate 3 when the second insulating spacer 70 is fitted to the second insulating plate 3,
This allows the spacer 71 to be placed so that its surface is aligned with the lower claw 3.
2, so as to be substantially flush with the surface 32S (FIG. 5) on the upper claw 33 side.

The reinforcing plate 73 further includes a plurality of engaging members 7.
5 is formed. The engagement member 75 is a second
Notch 3 formed in flange 31 of insulating plate 3 of
1A, and a wedge-shaped member 76 is formed at the tip of the engaging member 75.

The engagement member 75 has substantially the same cross-sectional shape as the notch 31A. Also, the rear end surface of the wedge-shaped member 76 (the surface on the reinforcing plate 73 side)
The distance between the support plate 74 and the tip of the support plate 74 is set to be approximately equal to the plate thickness of the flange 31.

Now, the first insulating plate 1 and the second insulating plate 3 having the above-described configuration are fitted to the front and rear ends of the core 2 to form a yoke frame. Then, a V winding is wound around the yoke frame.

In the V-winding, one end of the winding is first wound around a hook 14 (FIG. 6) formed on the flange 11 and fixed to the flange 11, and then the winding is placed in a predetermined groove 1.
7, through the slot 21 at the rear end of the slot 21, through the groove 37 between the flange 31 and the lower claw 32, and guided into the other slot 21, and then at the front end of the slot 21, the groove 17 By repeating the operation of passing between the flange 11 and the lower claw 12 and guiding it further into another slot 21, it is wound around the yoke frame as shown by the reference numeral 100 in FIG. After the winding, the other end of the winding wire is wound around another hook 14 and fixed to the flange 11.

After winding of the V winding is completed, the first insulating spacer 60 described above with reference to FIGS. 1 and 2 is fitted onto the first insulating plate 1. The above fitting is performed using the spacer 6
2 to the core 2 side, and insert the spacer 61 into the upper claw 13 and the lower claw 12 so that the engaging member 65 is inserted into the notch 11A formed in the flange 11. Then, the tip of the support plate 64 is brought into contact with the outer peripheral part of the flange 11, and the wedge-shaped member 6
6 is engaged with the end of the notch 11A.

Next, the second insulating spacer 70 described above with reference to FIGS. 3 and 4 is fitted onto the second insulating plate 3. The fitting is carried out by directing the spacer 72 toward the core 2 side, as in the case of the first insulating spacer 60, and by inserting the engaging member 75 into the notch 31A formed in the flange 31.
The spacer 71 is inserted into the upper claw 33 and the lower claw 32 so that the spacer 71 is inserted into the upper claw 33 and the lower claw 32. And spacer 72
The distal end of the support plate 74 is brought into contact with the outer circumference of the flange 31 so that the distal end thereof overlaps the distal end of the spacer 62, and the rear end of the wedge-shaped member 76 is brought into contact with the end of the notch 31A. engage.

After the attachment of the first and second insulating spacers 60, 70 is completed in this manner, the H winding is wound next.

Similarly to the V winding, the H winding also first attaches one end of the winding to a hook 15 formed on the flange 11 (Fig. 6).
After that, the winding wire is passed between the lower claw 12 and the upper claw 13, and passed through the slot 21 through a predetermined groove 17. At the rear end of the slot 21, the winding wire is passed through the slot 21. It is then guided into the other slot 21 through between the lower claw 32 and the upper claw 33, and then inserted into the slot 21 at the front end.
By repeating the operation of guiding it through the groove portion 17 between the lower claw 12 and the upper claw 13 and further into the other slot 21, the number 2 in FIG.
It is wound around the yoke frame as indicated by 00. After the winding, the other end of the winding wire is attached to another hook 1.
5 and fixed to the flange 11.

Then, both ends of the V and H windings are connected to a terminal plate (not shown).

Now, in the above explanation, the first and second
The insulating spacers 60 and 70 have reinforcing plates 6 on their sides.
3 and 73, but the present invention is not limited to this, and the reinforcing plates 63 and 73 may not be formed. That is, the reinforcing plates 63 and 73 provide a predetermined strength to the first and second insulating spacers 60 and 70;
is attached to the yoke frame around which the V winding is wound, and when the H winding is wound thereon, the spacers 61, 71 and the spacers 62, 72 are sandwiched between the V winding and the H winding, solidly supported. Therefore, the first and second insulating spacers 60, 7
0 is attached to the yoke frame around which the V winding is wound, and the first and second insulating spacers 60 and 70 are carefully handled until the H winding is wound thereon. Then, the reinforcing plates 63, 7
3 need not be formed on the first and second insulating spacers 60, 70.

Further, support plates 64, 74 and engaging members 65, 75 are further formed on the reinforcing plates 63, 73, and notches 1 are formed on the first and second insulating plates.
Although the explanation has been made assuming that 1A and 31A are formed, there is no particular need for these to be formed either. That is, the support plates 64, 74 and the engagement member 65,
75 and the notches 11A, 31A are for positioning and fixing the first and second insulating spacers 60, 70 with respect to the yoke frame.
When the spacers 61, 71 are fitted into the lower claws 12, 32, the spacers 62, 72 are guided into the slot 21, and the first and second insulating spacers 60, 7
0 is naturally positioned on the yoke frame, the first and second insulating spacers 6 do not need to be formed with the supporting plates 64, 74, the engaging members 65, 75, and the notches 11A, 31A.
0.70 can be relatively stably brought into close contact with the V winding.

Furthermore, although the insulating spacer has been described as being composed of the first and second insulating spacers 60 and 70, for example, the tip of the spacer 61 of the first insulating spacer 60 is provided with the lower claw 32 facing the upper claw 33. The second insulating spacer 70 can be omitted by forming a band-shaped portion that fills the gap in the side surface 32S.

(Effects of the invention) As is clear from the above explanation, according to the present invention, the following effects are achieved. That is,
Simply insert the insulating spacer from the end of the core,
Since all the strip spacers can be placed in each slot of the core, the placement of the insulating spacers is easy. Therefore, manufacturing of the deflection yoke becomes easy.

Further, by disposing an insulating spacer between the V winding and the H winding, the V winding and the H winding do not come into direct contact with each other. Therefore, even if there are minute pinballs in the coating of each winding,
There is no risk that the insulation between the windings will be destroyed.

[Brief explanation of drawings]

FIG. 1 is a plan view of the first insulating spacer, FIG. 2 is a side view of FIG. 1, FIG. 3 is a plan view of the second insulating spacer, FIG. 4 is a side view of FIG. 3, and FIG. The figure is a partially cutaway side view of one embodiment of the present invention, and FIG.
7 is a side view of the first insulating plate seen from the center, FIG. 8 is a detailed view of section A in FIG. FIG. 10 is a plan view of the second insulating plate, and FIG. 10 is a bottom view of the second insulating plate. 1...First insulating plate, 2...Core, 3...Second
Insulating plate, 11, 31...Flange, 12, 32
...Lower claw, 13,33... Upper claw, 17,37...
Groove portion, 21... slot, 60... first insulating spacer, 61, 62, 71, 72... spacer,
70...Second insulating spacer, 100...V winding, 200...H winding.

Claims (1)

[Claims for Utility Model Registration] (1) A core having a plurality of slots formed in its inner wall, and a core arranged at the front and rear ends of the core and formed to correspond to the ends of each of the slots. a flange formed in the outer circumferential direction of the core, and an upper claw and a lower claw formed outward in the radial direction of the core from the end side of the core and spaced apart in the axial direction. and a yoke frame made of a second insulating plate; a V winding and an H winding wound around the yoke frame; and an insulating spacer disposed between the V winding and the H winding. In the yoke, the insulating spacer includes a plurality of band-shaped spacers that close at least a bottom surface and an upper middle portion of each of the slots, and is formed integrally with each of the band-shaped spacers, and is formed integrally with one of the first and second insulating plates. A deflection yoke comprising: an annular spacer formed to fill a gap between each of the lower claws provided on the yoke. (2) The deflection yoke according to claim 1, wherein the insulating spacer is provided with means for fixing it to one of the first and second insulating plates.