JPH0528676Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Field of Industrial Application) The present invention relates to a deflection yoke, and in particular allows horizontal and vertical deflection coils to be wound around a yoke frame without damaging them. This invention relates to a deflection yoke that can be manufactured efficiently.

(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 and the H winding are arranged so that the windings are passed through one slot of the core and hung on a claw at the end of the core.
By repeating the operation of guiding the core into other slots, it is wound around the yoke frame.

The end of each wound wire is connected to a predetermined terminal attached to the yoke frame. A lead wire for connection to the deflection circuit is fixed to the terminal.

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

(1) If the terminals for connecting the ends of each winding are fixed to the yoke frame in advance, the windings will connect to the terminals and be damaged when each winding is wound around the yoke frame. There is a risk. In extreme cases, this may lead to breakdown of the insulation between the V and H windings.

(2) As mentioned above, the lead wire for connecting to the deflection circuit is fixed to the terminal, but if the lead wire is connected in advance to the terminal attached to the yoke frame, the lead wire There is a possibility that the windings may interfere with the winding of each winding, making the winding impossible.

Therefore, the connection of the lead wire is performed after winding of the V winding and the H winding is completed, but as a result, the connection of each winding end to the terminal and the connection of the lead wire are made. It is not possible to divide labor, and it takes a relatively long time to manufacture the deflection yoke.

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

(Means and effects for solving the problems) In order to solve the above problems, the present invention provides slots that are arranged at both ends of the core and correspond to the front and rear ends of the slots bored in the inner wall of the core. A terminal plate having a plurality of terminals fixed to at least one of the first and second insulating plates having grooves formed therein is removably attached to the yoke frame. After winding of the wire and H winding is completed, the terminal plate is attached to the insulating plate to prevent damage to the winding during winding of the winding, and to connect the terminal and the deflection circuit. Since the lead wire can be fixed to the terminal in advance, it is possible to divide the work of fixing the lead wire to the terminal and fixing each winding wire to the terminal.

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

FIG. 3 is a partially cutaway side view of an embodiment of the present invention;
FIG. 4 is a schematic plan view of FIG. 3. In FIG. 4, the V winding and H winding are omitted.

In each figure, the inner wall surface of the core 2 has slots 21 for arranging the V winding and the H winding.
However, 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. 5 is a side view of the first insulating plate 1 viewed from the center, and FIG. 6 is a detailed view of section A in FIG. 3. 5 and 6, the same reference numerals as in FIG. 3 represent the same or equivalent parts.

In FIG. 5, 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. 3 and 4, 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.

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.

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

The second insulating plate 3 is molded from an elastic insulating material such as resin.

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.

An upper claw (winding guide) 33 and a lower claw (winding guide) 32 are formed between each groove portion 37 of the second insulating plate 3 from the rear end side of the second insulating plate 3. ing.

FIG. 1 is a plan view of the second insulating plate 3. FIG. 1st
In the figure, the same reference numerals as in FIGS. 3 and 4 represent the same or equivalent parts.

In FIG. 1, a cover member 36 is formed on the surface of the second insulating plate 3 that comes into contact with the core 2 so as to extend along the groove 37. As shown in FIG. The outer shape of the cover member 36 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.

An engagement piece 39 is further formed integrally with the second insulating plate 3 . The engagement pieces 39 are members for attaching a terminal plate, which will be described later with reference to FIG.
It is formed on the insulating plate 3 of. In this FIG. 1, two sets of engagement pieces 39 are depicted.

Each engagement piece 39 is attached to the flange 3 of the second insulating plate 3.
1, and a wedge-shaped member 39 formed at the tip of the columnar member 39A.
Consists of B. Each pair of columnar members 39A protrudes in the same direction, and the distance between their ends is as follows:
It is set to L1.

The wedge-shaped member 39B connects each pair of columnar members 39A.
are provided on the outside of the tip of the columnar member 39A, and each of them is formed to be inclined toward the base of the columnar member 39A.

A support plate 40 is formed at the intermediate portion of each pair of engagement pieces 39 . The support plate 40 has an engagement piece 39
supports the back surface of the terminal board when the terminal board is attached.

FIG. 2 is a plan view of a terminal plate 51 that connects the ends of the V winding or the H winding.

In FIG. 2, the terminal plate 51 is made of an insulating material such as resin. The terminal board 51 includes:
A plurality of terminals are fixed, and mounting holes 53 are formed at both ends of the terminal board 51, respectively.
The distance L2 between both ends of the pair of mounting holes 53 is the first
It is set approximately equal to the distance L1 between the side surfaces of both ends of the pair of columnar members 39A shown in the figure.

A predetermined one of the plurality of terminals 52 includes:
One ends of lead wires 56 and 57 are connected. A socket 58 is connected to the other ends of the lead wires 56, 57. The socket 58 is connected to a deflection circuit (not shown) after the deflection yoke is fabricated.

Reference numeral 55 indicates an electric circuit element, and 201 indicated by a two-dot chain line indicates the end of the V winding or H winding that is connected to a predetermined terminal after the terminal plate 51 is attached to the insulating plate. ing.

As shown in FIG. 1, the terminal board 51 having the above configuration has one mounting hole 5
is engaged with the rear end of one of the wedge-shaped members 39B of the pair of engagement pieces 39, and then, by pressing the end of the terminal plate 51 in the direction of arrow P,
It is attached to the pair of engaging pieces 39 with one touch (reference numeral 51B).

That is, by the pressing, the inclined portion of the other wedge-shaped member 39B of the pair of engagement pieces 39 is first pressed against the side surface of the other attachment hole 53 of the terminal plate 51, and the pair of engagement pieces 39 are curved inwardly toward each other.

Then, the side surface of the other mounting hole 53 of the terminal board 51 engages with the rear end of the other wedge-shaped member 39B, and then the pair of engagement pieces 39 return to their original states, thereby causing the terminal board 51 installation is completed.

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

In the V-winding, one end of the winding is first wound around a hook 14 (FIG. 4) 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.

The H winding is performed after the V winding is completed.

Similarly to the V winding, for the H winding, one end of the winding is first attached to the hook 15 formed on the flange 11 (Fig. 4).
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 at the front end of the slot 21,
By repeating the operation of passing through the groove 17 between the lower pawl 12 and the upper pawl 13 and guiding it into another slot 21, the guide mark 2 in FIG.
The yoke frame is wound as indicated by 00. After the winding, the other end of the winding wire is attached to another hook 15.
and fix it to the flange 11.

After that, a terminal plate 51 to which lead wires and predetermined electric circuit elements are connected in advance as shown in FIG. 2 is attached to the flange 31, and the predetermined terminals fixed to the terminal plate 51 are V winding and H
Connect the ends of the windings.

In the second insulating plate 3 shown in FIG.
Two sets of engagement pieces 39 are formed, and a terminal plate 51 is attached to each set. The end of the V winding is connected to one terminal plate 51, and the end of the H winding is connected to the other terminal plate 51.

Now, in the embodiment described above, the terminal board 51 is provided with mounting holes 53 at both ends thereof, and the second insulating board 3 is provided with the mounting holes 53 at the ends thereof so as to correspond to the pair of mounting holes 53. A pair of engaging pieces 39 each having a wedge-shaped member 39B are provided, and
With this configuration, the terminal board 51
Although the above description has been made assuming that the terminal board 51 can be fixed to the second insulating plate 3 with one touch, various structures have been created using known techniques to fix the terminal board 51 to the second insulating plate 3 with one touch. Therefore, the one-touch fixing structure of the terminal board 51 is not limited to the above-described structure.

Further, the terminal board 51 and the second insulating board 3 do not have to have a one-touch fixing structure, and the terminal board 51 may be attached to the second insulating board 3 using, for example, screws. Of course.

Further, although the terminal board 51 has been described as being fixed to the second insulating plate 3, the present invention is not limited to this, and the terminal board 51 may be fixed to the first insulating plate 1. Also, both the first insulating plate 1 and the second insulating plate 3, or the core 2
It goes without saying that it may be fixed to .

(Effects of the invention) As is clear from the above description, according to the present invention, the following effects are achieved.

(1) After winding the V winding and H winding on the yoke frame, a terminal plate for connecting the ends of the windings can be attached to the yoke frame, so that the The winding is the terminal board,
Alternatively, there is no contact with terminals, etc., and the winding is not damaged.

(2) Also, since the lead wires or electric circuit elements for connecting each of the windings to the deflection circuit can be connected to the terminal board in advance, the connection of each winding end to the terminal board, The connection of the lead wires, electrical elements, etc. to the terminal board can be divided into divisions. As a result, the deflection yoke can be manufactured efficiently and in a short time.

[Brief explanation of drawings]

Fig. 1 is a plan view of the second insulating plate shown in Fig. 3, Fig. 2 is a plan view of a terminal board connected to the second insulating plate, and Fig. 3 is a plan view of an embodiment of the present invention. 4 is a plan view of FIG. 3, FIG. 5 is a side view of the first insulating plate viewed from the center, and FIG. 6 is a side view of the third insulating plate.
It is a detailed view of part A in the figure. 1...First insulating plate, 2...Core, 3...Second
Insulating plate, 11, 31...flange, 12, 32
...Lower claw, 13,33... Upper claw, 16,36...
Cover member, 17, 37...Groove portion, 21...Slot, 39...Engaging piece, 39A...Column member, 3
9B... Wedge-shaped member, 51... Terminal plate, 52...
...Terminal, 53...Mounting hole.

Claims (1)

[Claims for Utility Model Registration] (1) A core having a plurality of slots formed in its inner wall, and grooves arranged at the front and rear ends of the core so as to correspond to the ends of each of the slots. a yoke frame including first and second insulating plates formed with flanges extending in the outer circumferential direction of the core; a V winding and an H winding wound around the yoke frame; A deflection yoke including a plurality of terminals connecting ends of a V winding and an H winding, comprising: a terminal plate to which the terminals are fixed; and a terminal plate connected to at least one of the first and second insulating plates. It is characterized by comprising means for detachably attaching it to the outer peripheral part of one flange, and a hook provided on the flange of the yoke frame for winding and fixing the ends of the V winding and the H winding. and a deflection yoke. (2) The means is formed in at least one of the first and second insulating plates to correspond to a pair of mounting holes drilled at both ends of the terminal board and the pair of mounting holes. The deflection yoke according to claim 1, characterized in that the deflection yoke comprises a columnar member having a cylindrical shape, and an engagement piece made of a wedge-shaped member formed at the tip of the columnar member.