JP3493073B2 - Deflection coil - 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 coil (also referred to as a deflection yoke) used in a cathode ray tube such as a display or a television.

[0002]

2. Description of the Related Art FIG. 25 shows, for example, Japanese Unexamined Patent Publication No. 4-87239.
It is a perspective view which shows the structure of the conventional deflection yoke described in the publication. FIG. 26 is a diagram for explaining an assembly process of the deflection coil shown in FIG. In FIG. 26,
(A) is a side view showing an assembled state in which the upper guide and the lower guide are attached to the ferrite core, (b) is a perspective view of the upper guide, and (c) is a perspective view of the lower guide.

The deflection yoke, the upper guide and the lower guide shown in FIG. 25 are only on one side which is divided in half. Figure 2
In FIG. 5, 1 is a core whose cross-sectional shape is narrower on the neck side than on the screen side, 2 is an upper guide attached to the neck side of the core 1 for fixing windings, 3 is the core 1
A plurality of lower guides 4 attached to the screen side of the upper guide 2 for fixing windings in cooperation with the upper guide 2 are provided on the upper surface 2a of the base portion of the upper guide 2 along the inner circumference of the base portion, and when winding the electric wire, A guide hook whose cross-sectional shape for hooking is an inverted L-shape (hereinafter referred to as inverted L-shape),
A plurality of guide hooks 5 are provided on the lower surface 3b of the base of the lower guide 3 along the inner circumference of the base and have an L-shaped cross section for hooking the electric wire when winding the electric wire. 6 is a lower surface 2b of the base of the upper guide 2. And a wall 7 provided along the inner circumference of the upper guide 2 and projecting downward from the lower surface 2b of the base portion, and a reference numeral 7 provided on the upper surface 3a of the base portion of the lower guide 3 and projecting upward from the upper surface 3a of the base portion 3 along the inner circumference of the lower guide 3. Wall, 8 are guide hooks 4, 5
It is an electric wire that is wound around and wound around. Since the electric wire is wound around the inner surface of the core 1, the end portions of the guide hooks 4 and 5 face the outer peripheral side.

Although not shown in this figure, the upper guide 2 and the lower guide 3 are directly adhered to the ferrite core 1 using an adhesive or the like. That is, the base lower surface 2b of the upper guide 2 is in contact with the core 1 and the base upper surface 3 of the lower guide 3.
An adhesive is applied to a portion where a and the core 1 are in contact with each other.

The method of assembling such a conventional deflection coil is as follows. First, the upper guide 2 and the lower guide 3
Alternatively, the ferrite core 1 may be directly coated with an adhesive,
By using the positioning wall 6 of the core 1 included in the upper guide 2 in (a) and the positioning wall 7 of the core 1 included in the lower guide 3 in FIG. Carefully, as shown in FIG. 26A, the upper guide 2 and the lower guide 3 are bonded to the ferrite core 1.
Then, after the adhesive has hardened sufficiently, the electric wire is wound around the electric wire guide to form a saddle type deflection coil.

[0006]

As described above, the conventional deflection coil is a slit type winding type deflection coil in which it is not necessary to separately manufacture a coil using a separately prepared winding. The deflection coil can be formed by directly bonding the upper guide and the lower guide to the ferrite core and attaching them to form a deflection coil by winding an electric wire, but it has the following problems. First of all, there is a problem in that an adhesive is required to fix the upper guide and the lower guide as shown in FIGS. 25 and 26, when the upper guide and the lower guide are directly attached to the ferrite core.

Further, since it takes a considerable amount of time for the adhesive to fix the guides and the ferrite core to each other, it takes a considerable amount of time to fix the guides and the ferrite core while winding the coil. There is a big problem in manufacturing the deflection coil that it cannot do so.

Further, since it is difficult to attach the upper guide and the lower guide with high precision, there is a possibility that the performance as a deflection yoke is adversely affected, but the positional relationship between the upper guide and the lower guide is determined with reference to the ferrite core. Therefore, when attaching the upper guide and the lower guide to the divided ferrite core, it is necessary to attach the divided surface of the ferrite core and the end faces of both guides with high accuracy, which causes a problem that manufacturing becomes difficult.

Further, since there is no molded product between the upper guide and the lower guide, it is difficult to provide a structural member between the upper guide and the lower guide.

The present invention has been made in order to solve the above problems, and a structure is provided between the upper guide and the lower guide so that the positional relationship between the upper guide and the lower guide can be specified without using an adhesive. By connecting with members, it is an object to simplify the manufacture of the deflection coil and improve the assembly accuracy while taking advantage of the slit saddle winding method.

[0011]

A deflection coil according to a first aspect of the present invention comprises a substantially hollow rotating body-shaped ferrite core in which the screen side is gradually expanded from the neck side, and an end surface of the ferrite core on the neck side. An annular neck side electric wire guide provided along with the position of the electric wire wound along the inner surface of the ferrite core provided along the screen side end surface of the ferrite core in cooperation with the neck side electric wire guide. And a screen-side electric wire guide that defines an annular shape, wherein the neck-side electric wire guide or the screen-side electric wire guide has a locking portion and is coupled to an electric wire guide that does not have the locking portion. The connecting column having one end that has a hook and the other end that has a locked portion is
It is provided outside the outer surface of the light core and
By connecting the locked portion,
Attach the tocoa to the neck side electric wire guide and the screen side electric
A state where the line guides are held while maintaining a predetermined positional relationship
With the neck side wire guide and the screen side wire guide.
The neck side electric wire guide or the screw
The lean side wire guide should touch the inner surface of the ferrite core.
A protrusion protruding so as to come into contact with the protrusion,
Note At least four points that touch the ferrite core
And when inserting the ferrite core,
A part of the protrusion is scraped off on the inner surface of the ferrite core.
It is characterized in that it is inserted while being.

A deflection coil according to a second aspect of the present invention is the deflection coil according to the first aspect, wherein the locking portion and the locked portion are
The connecting part composed of and covers the outer surface of the ferrite core.
The blower so that it does not come into contact with the member that abuts against the outer surface.
It is characterized in that it is arranged outside of the core and the member.
And

A deflection coil according to a third aspect is the deflection coil according to the first aspect, wherein the neck side wire guide or
Or the screen side wire guide is a horizontal deflection coil bobbin.
It is characterized by contacting the outer surface of the connector.

A deflection coil according to a fourth aspect of the present invention is the deflection coil of the first aspect , wherein the ferrite core is undivided.
It is characterized by being a split core.

[0015]

[0016]

[0017]

[0018]

[0019]

[0020]

[0021]

[0022]

[0023]

[0024]

[0025]

[0026]

[0027]

With the connecting pillar according to the first aspect of the present invention, the neck side electric wire guide and the screen side electric wire guide can be joined and fixed, and the ferrite core can be held between the neck side electric wire guide and the screen side electric wire guide, and the bonding can be performed. No need for agents.

When an adhesive is used to fix the assembly consisting of the ferrite core, the neck side electric wire guide and the screen side electric wire guide, the adhesive cannot be wound until the adhesive is completely dried. Since no agent is used, it can be wound immediately after the ferrite core is assembled so as to be held between the neck side wire guide and the screen side wire guide, and the manufacturing time can be shortened.

Since no adhesive is used, the step of applying the adhesive can be omitted.

In addition, in terms of accuracy after combining the ferrite core with both the neck side and screen side electric wire guides, the accuracy can be improved by directly connecting the screen side electric wire guide and the neck side electric wire guide without using an adhesive. Is improved, the quality of the wound coil is stabilized, and manufacturing variations can be reduced. Further, the electric wire guide in the first invention
It is provided on the protruding part of the
The small projections that are scraped off the inner surface of the ferrite core
Inner diameter of ferrite core and wire guide protrusion to support
Due to the structure where the outer diameters of the
Even if the inner diameter of the core varies,
The ferrite core can be assembled accurately.

The connected portion of the connecting column in the second invention
The connecting part that connects the connection part of the wire guide and the wire guide is ferrite
Outside at a distance from the outer surface of the core and its abutting parts
The outer diameter of the ferrite core
Even if there is variation, it does not affect the connecting part, so the neck side
Coil box consisting of wire guide and screen-side wire guide
The assembling accuracy of the bottle can be improved.

The electric wire guide in the third invention is horizontal.
Due to the structure in contact with the outer surface of the deflection coil bobbin
Since there is no gap between the horizontal deflection coil bobbin and
The wire guide has no rattling with respect to the horizontal deflection coil bobbin.
Incorporated.

The ferrite core in the fourth invention is
Easy to assemble because the ferrite core is not divided
As a result, the assembly accuracy is improved.

[0034]

[0035]

[0036]

[0037]

[0038]

[0039]

[0040]

[0041]

【Example】

Example 1. The first embodiment of the present invention will be described below with reference to FIGS. FIG. 1 is a view showing the structure of an assembly of a ferrite core, a neck side wire guide, and a screen side wire guide forming a part of a saddle type deflection coil according to a first embodiment of the present invention. FIG. 1A shows a top view of this assembly, and FIG. 1B shows a side view of this assembly. In FIG. 1B, the upward direction is called the neck side and the downward direction is called the screen side. In FIG. 1, reference numeral 11 denotes a trumpet-shaped ferrite core having openings on the neck side and the screen side and gradually expanding from the neck side to the screen side, and having a cylindrical neck side. Reference numeral 12 denotes an end surface of the ferrite core 11 on the neck side. And a neck side electric wire guide for fixing the electric wire wound inside the ferrite core 11 and a neck side electric wire guide 13 for abutting on the end surface of the ferrite core 11 on the screen side. A plurality of screen side wire guides for fixing the wires in cooperation with each other are provided on the upper surface 12a of the base part of the neck side wire guide 12 along the inner circumference of the base part so that the wound wire is hooked and the cross-sectional shape is reversed. L-shaped guide hook,
15 is provided on the upper surface 12a of the base portion of the neck side wire guide 12 along the inner circumference of the base side by side with the guide hook 14, and is wider than the guide hook 14 in order to widen the distance between the wound wires and has an inverted L shape. A guide book 16 having an L-shape is provided on the lower surface 13b of the base of the screen-side electric wire guide 13 along the inner circumference of the base, and a guide book having an L-shaped cross section for hooking the wound electric wire is provided. A locking piece integrally formed with the screen-side electric wire guide 13 and having a bulged tip portion, and 20 is an upper end portion 20a and an upper end portion that are integrally connected to a rib 12c protruding downward from a base lower surface 12b of the neck-side electric wire guide 12. The screen side wire guide 13 is engaged with the base portion 20b extending downward from the portion 20a, the lower end portion 20c following the base portion 20b, and the locking piece 19 provided on the lower end portion 20c. Strut having a tubular object locking portion 20d for realizing connection, 21 is a rib for coupling the lower portion 20c and a plurality of connecting struts 20 are integrally formed with the strut 20.

Incidentally, in FIG. 1, the guide hook 16 is shown only in the central portion for simplifying the drawing, and other portions are omitted. The tips of the guide hooks 14, 15 and 16 are radially arranged from the inner circumference to the outer circumference of the base portion of the neck side electric wire guide 13 or the screen side electric wire guide 14.

As shown in FIG. 1, the neck side wire guide 1
2 and the screen side electric wire guide 13 are four connecting columns 2
Connected by 0. The connection column 20 and the neck side guide 12 are connected by being integrally molded, and the connection column 20 and the screen side wire guide 13 are connected by connecting the locking portion 19 and the locked portion 20d. ing. As shown in the top view, these four connecting columns 20 are provided at positions where the ring-shaped neck side electric wire guide 12 and the like seen from above are rotated by 90 degrees. Here, the wire guides 12 and 13 can be reliably fixed by providing the connection at four places, and providing the connecting portion composed of the connecting piece 19 and the connected portion 20 at two or more places. In particular, by providing the connecting portions at these two locations on the axis, it is possible to more reliably fix them. However, when the connecting portions are arranged at four or more positions, the connecting portions may not be provided at the positions rotated by the same angle, and the same effect as that of the above-described embodiment can be obtained. The width of these locking pieces 19 matches the width of the hollow portion of the locked portion 20. Therefore, both wire guides 12, 13 in the circumferential direction
The positional relationship is accurately determined, and the positional relationship does not go wrong after being determined. When the locking piece 19 is inserted into the locked portion 20, the bulging portion at the tip of the locking piece 19 is compressed by elastic deformation, and the locked portion 20 is expanded by elastic deformation. When the bulging portion of the locking piece 19 passes through the hollow portion of the locked portion 20, the locking piece 19 and the locked piece 20 return to their original shapes, and the locking piece 19 and the locked portion 20. And are connected.
The bulging portion of the locking piece 19 has a wedge-shaped front portion (tip) that facilitates the insertion of the locking piece 19 and the rear portion of the bulging portion has a steep angle. The rear portion of the bulging portion 19 and the upper end surface of the locked portion 20 come into contact with each other to stop,
Since they are connected at a predetermined position, accurate assembly is possible.

Further, since the ferrite core 11 spreads like a trumpet, the upper end 20a of the connecting column 20 and the base 2 are connected.
0b, the base portion 20b, and the lower end portion 20c are formed to have respective predetermined angles. The neck side electric wire guide 12, the screen side electric wire guide 13 and the connection support 2
0 is formed of a resin as a main material, and can be formed of, for example, polypropylene or polyphenylene oxide.

Since the neck-side electric wire guide 12 and the screen-side electric wire guide 13 are physically connected by the connecting column 20 with the ferrite core 11 sandwiched therebetween, the ferrite core 11, the neck-side electric wire guide 12 and the ferrite core 11 and the screen are connected. An adhesive for fixing the side wire guide 13 is unnecessary. Since no adhesive is used, the step of applying the adhesive can be omitted.

When an adhesive is used to fix the assembly of the ferrite core 11, the neck side electric wire guide 12 and the screen side electric wire guide 13, it cannot be wound until the adhesive is completely dried. However, since no adhesive is used, it is possible to wind immediately after assembling this assembly, and the manufacturing time can be shortened.

Further, in the accuracy after combining the ferrite core 11 with both the neck side and screen side electric wire guides 12 and 13, the screen side electric wire guide 13 and the neck side electric wire guide 12 are directly connected without interposing the ferrite core 11.
The connection accuracy between the electric wire guides is improved because of the connection between and, the quality of the winding coil is stabilized, and the manufacturing variation can be reduced. From the above, the assembly accuracy can be improved. Further, although a split type may be used as the ferrite core 11, by using an integrated type ferrite core,
It is possible to further improve the assembly accuracy and shorten the manufacturing process.

FIG. 2 is a side view showing a state before assembling an assembly corresponding to the assembly shown in FIG. Figure 2
FIG. 2A is a neck side wire guide and a connecting column integrally formed therewith, FIG. 2B is a ferrite core, and FIG.
Shows the side of the screen side wire guide. Figure 2
In FIG. 1, 17 is a guide hook provided on the screen side electric wire guide 13 and wider than the guide hook 16, 18 is a positioning wall for determining the positional relationship between the ferrite core 11 and the screen side electric wire guide 13, and is otherwise the same as FIG. Those having the reference numerals are the same or corresponding portions as the portions having the same reference numeral in FIG. The screen side wire guide 13 of FIG. 2 is provided with a wide guide hook 17 on the side surface unlike that of FIG. 1, but the other structure is the same as that of FIG. Figure 2
An assembly is completed by assembling what was shown to (a)-(c) so that a center line may correspond. That is, the outer surface lower portion 11 c on the lower side of the ferrite core 11 is fitted so as to hit the inner surface of the positioning wall 18. Then, a molded product including the connecting column 20 and the neck side wire guide 12 is fitted so as to cover the ferrite core 11. At this time, the neck side wire guide 1 which is not shown in the figure
The outer surface of the second positioning wall contacts the inner surface of the cylindrical portion 11b of the ferrite core 11, and the positional relationship between the ferrite core 11, the neck-side wire guide, and the connecting column 20 is determined.

As shown in FIG. 2A, the space between the four connecting columns 20 integrally formed with the neck side wire guide 12 is
Since the rib 21 formed integrally with the lower end portion 20c of the connecting column 20 is connected in a substantially annular shape, the assembly strength of the assembly is increased, and when the electric wire is wound, it can be wound stably. You can

FIG. 3 is a sectional view taken along line IV-IV in FIG.
In FIG. 3, reference numeral 22 is a positioning wall that is formed so as to contact the inner circumference of the lower surface 12b of the base portion of the neck side wire guide 12 and project downward from the base portion. The same or corresponding portions as in FIG. 1 or 2 are shown. As can be seen from FIG. 3, the cylindrical portion 11b of the ferrite core 11 is fitted so as to hit the positioning wall 22, and the positional relationship with the neck side wire guide 12 is determined.

The connecting column 20 integrated with the neck side wire guide 12 is connected to the connecting portion of the screen side wire guide 13. However, as shown in FIG. 3, the neck side and screen side wire guides 12 and 13 and the connection support 2
The locking piece 19 and the locked portion 20d, which form a connecting portion for connecting with 0, have an annular rib 21 that contacts the outer surface of the ferrite core 11 via the positioning wall 18, and the lower end portion 20c of the connecting column 20. Since the ferrite core 11 is provided on the outside so as not to come into contact with it, even if the outer diameter of the ferrite core 11 varies, the connection piece 19 of the screen side wire guide 13 and the connected portion 20d of the connection column 20 are connected. Since the parts are not affected by the deformation of the ribs 21 and the connecting columns 20, the assembling accuracy is improved.

Example 2. FIG. 4 is a side view of an assembly including a ferrite core, a neck side wire guide, and a screen side wire guide according to a second embodiment of the present invention. The difference between the assembly shown in FIG. 4 and that of FIG. 1 is the number of connecting columns 20 that connect the screen-side electric wire guide 13 and the neck-side electric wire guide 12. Connection stanchion 2 shown in FIG.
There were four 0s, but the connecting column shown in FIG.
Neck side electric wire guide 12 which is almost annular when viewed from above
And the like are provided at positions rotated by 45 degrees each. Neck side wire guide 12 and screen side wire guide 13
By increasing the number of the connecting columns 20 for connecting and connecting the cable, the neck side and screen side wire guides 12, 1
3 can be securely fixed and can be assembled accurately.

In each of the above-mentioned embodiments, the cross section of the neck side wire guide 12 fitted with the ferrite core 11 is L-shaped, and the neck side wire guide 12 is pressed from the inner surface of the ferrite core 11. It was However, in order to position the neck side wire guide 12 and the ferrite core 11, the neck side has a cylindrical shape. The ferrite core 11 has a cylindrical shape. It may be in contact with the connecting column. For example, as shown in FIG. 5A, the positioning wall 24 protruding downward from the neck side wire guide 12 is provided.
Is provided, and the inner peripheral surface of the positioning wall 24 is brought into contact with the outer surface of the ferrite core 11, so that the positional relationship between the ferrite core 11 and the neck side wire guide 12 can be determined.

Further, as shown in FIG. 5 (b), the cylindrical portion 11b of the ferrite core 11 is connected to the upper end portion 2 of the connecting column 20.
0a or the neck side by being inserted into the U-shaped part including the rib 12c of the electric wire guide 12 and the positioning wall 22 and being pressed from both sides by the elastic force of the upper end 20a and the positioning wall 22. It is fixed to the wire guide 12. At this time, as shown in FIG. 24, it is possible to separate the connecting column 20 from the rib 12c that serves as a positioning wall so that the connecting column 20 is not affected by the variation in the outer circumference of the ferrite core 11. By doing so, it is possible to assemble with high accuracy. The fact that the ferrite core and the neck side wire guide 12 can be positioned as described above is the same in the following embodiments.

In each of the above embodiments, the ferrite core 11 has a cylindrical neck side. However, the shape of the ferrite core is not limited to the one having a cylindrical neck side. For example, the cross-sectional shape may be the same as that of the conventional one, and in this case, the same effect as that of the above embodiment can be obtained.

Further, in each of the above embodiments, FIG. 6A shows the relationship between the positioning wall 22 and the rib 12c serving as the positioning wall described with reference to FIG. 5B. FIG. 6 is a cross-sectional view corresponding to, for example, a cross section taken along line VV of FIG. 2. Although the positioning walls 20 and 24 are formed in an annular shape, as shown in FIG. 6B, it is not necessary to provide them over the entire circumference, and at least the inner surface of the ferrite core or the shape can be fixed so that the position and shape of the circle can be fixed. It is only necessary to be able to determine the three points on the outer surface.

Similarly, the positioning wall used to determine the positional relationship between the screen-side electric wire guide and the ferrite core is also in contact with a part of the outer periphery of the ferrite core 11 like the positioning wall 18 'in FIG. The same effect as that of the above-described embodiment can be obtained. The above-described shape of the positioning wall can be similarly applied to the following embodiments.

Example 3. FIG. 8 is a side view of an assembly including a ferrite core, a neck side wire guide, and a screen side wire guide according to the third embodiment of the present invention. In FIG. 8, 20 'is a connecting strut integrally formed with the neck-side electric wire guide 12, 21' is an annular rib for connecting the connecting strut 20 'in a substantially annular shape at a substantially central portion of the connecting strut 20', and others. The same reference numerals as those in FIG. 1 are portions corresponding to the same reference numerals in FIG.

As shown in FIG. 8, the space between the connecting columns 20 'between the electric wire guides 12 and 13 is between the electric wire guides 12 and 1.
In the middle part between the three, the structure is such that the ribs 21 ', which are molded products integrated with the connecting pillar 20', are connected in a substantially annular shape, and the connecting pillars 20 are located at predetermined positions from the outer surface of the ferrite core 11 by the ribs 21 '. Fixed in place
Since the connecting column 20 'and the screen-side electric wire guide 13 are connected when assembled, the assembling strength increases, and when the electric wire is wound, it can be stably wound.

Example 4. FIG. 9 is a partial sectional view showing a part of a ferrite core and a neck side wire guide according to a fourth embodiment of the present invention. FIG. 9A shows a partial cross-sectional view of the neck side wire guide attached to the ferrite core, and FIG. 9B shows a part 26 of the neck side wire guide shown in FIG. 9A. An enlarged partial sectional view is shown.

The inner wall 25 protruding downward along the inner circumference of the neck side electric wire guide 12 shown in FIG. 9 is formed by a groove 28 carved upward so as to extend the outer surface (left side) of the inner wall 25. The electric wire guide 12 is configured to be easily deformed toward the outer peripheral side or the inner peripheral side (the left-right direction in the drawing). In addition, a bulge 27 is provided at the lower end of the wall 25 so that the bulge increases toward the lower side. By increasing the bulge of the bulging portion 27 as it goes downward, when inserting the ferrite core 11 into the neck-side electric wire guide 12, the portion where the ferrite core 11 hits can be made farther from the bottom of the groove 28 and the force of spreading can be reduced. .

The portion of the neck side wire guide 12 that contacts the inner surface of the ferrite core 11 moves due to elastic deformation, but the groove 2
8 made it easier to move. Neck side wire guide wall 25
A little bulge toward the ferrite core 11 side. When the neck-side electric wire guide 12 is inserted into the ferrite core 11, a part of the neck-side electric wire guide 12 is elastically deformed so that the bulging portion 27 moves in the direction of the arrow and the bulging portion 27.
By this, the inner surface of the ferrite core 11 is supported. Therefore, even if the inner diameter of the ferrite core 11 varies, the neck side electric wire guide 12 surely contacts the ferrite core 11 with the upper surface 11d of the ferrite core 11 surely contacting the base lower surface 12b of the neck side electric wire guide 12. It can be gripped and the assembly accuracy is improved.

Example 5. FIG. 10 is a partial sectional view showing a part of a ferrite core and a neck side wire guide according to a fifth embodiment of the present invention. FIG. 10A shows a partial cross-sectional view of the neck side electric wire guide attached to the ferrite core, and FIG. 10B shows a part 51 of the neck side electric wire guide shown in FIG. 10A. An enlarged partial sectional view is shown.

In the fourth embodiment, positioning is performed on the outer peripheral side in order to allow variations in the inner diameter of the ferrite core 11,
Although an example in which a margin is provided on the side pressed against the inner surface of the ferrite core 11 has been shown, in the neck side wire guide according to the fifth embodiment, positioning is performed using the inner surface of the ferrite core to allow variations in the outer shape of the ferrite core. I decided.

That is, the ring-shaped rib 49 of the neck side wire guide 12 is in contact with the outer surface of the ferrite core 11, and as in the fourth embodiment, a part of the rib 49 faces the ferrite core 11 side and is slightly inclined. By providing the bulging portion on the side in contact with the ferrite core 11, and by the groove 50 engraved above so as to extend the inner surface (right side) of the rib 49, the outer peripheral side or the inner peripheral side of the neck side electric wire guide 12 is provided. It is configured to be easily deformed toward the side (the left-right direction in the drawing). As a result, when the neck-side electric wire guide 12 is inserted into the ferrite core 11, the annular rib 49 of the neck-side electric wire guide 12 elastically deforms in the direction of the arrow to support the outer surface of the ferrite core 11, and as in the fourth embodiment. Variations in the outer diameter of the ferrite core 11 can be absorbed, and assembly accuracy is improved.

Example 6. FIG. 11 is a partial sectional view showing a part of a ferrite core and a neck side wire guide according to a sixth embodiment of the present invention. FIG. 11A shows a partial cross-sectional view of the neck side wire guide attached to the ferrite core, and FIG. 11B shows a part 31 of the neck side wire guide shown in FIG. 11A. An enlarged partial sectional view is shown.

Thus, the neck side electric wire guide 1 which is substantially annular on the inner surface of the neck side electric wire guide 12 when viewed from above.
At least four small protrusions 30 are provided at positions that rotate 2 by 90 degrees. The position where the four small protrusions are provided is not limited to the position rotated by 90 degrees,
If they are provided sufficiently apart, the same effect as in the above embodiment can be obtained. The small protrusion 30 is long in the vertical direction and has a sharp tip. The tip is sharp so that the tip is easily scraped, and the tip is long in the up-down direction to increase the area where the small protrusion 30 comes into contact with the ferrite core 11 after insertion to ensure gripping. However, the vertical length may be short and the same effect as that of the above-described embodiment can be obtained.

When the neck side wire guide 12 is inserted into the ferrite core 11, a part of the small protrusion 30 is inserted while being scraped off by the inner surface of the ferrite core 11, so that the inner diameter of the ferrite core 11 varies. Even when the small protrusions 30 are scraped off, the neck side wire guide 12 can reliably grip the ferrite core 11 while the upper surface 11d of the ferrite core 11 is in contact with the lower surface 12b of the base portion. Is improved.

Example 7. FIG. 12 is a partial sectional view showing a part of a ferrite core and a neck side wire guide according to a seventh embodiment of the present invention. FIG. 12 (a) shows a partial cross-sectional view of the neck side wire guide attached to the ferrite core, and FIG. 12 (b) shows a part 55 of the neck side wire guide shown in FIG. 12 (a). An enlarged partial sectional view is shown.

In the sixth embodiment, positioning is performed on the outer peripheral side in order to allow variations in the inner diameter of the ferrite core 11,
Although an example in which the small protrusion 30 is pressed toward the inner surface of the ferrite core 11 has been shown, the neck side wire guide according to the seventh embodiment uses the inner surface of the ferrite core for positioning, and allows variations in the outer shape of the ferrite core. I decided.

That is, at least four small protrusions 53 are provided on the inner surface of the annular rib 52, and the annular rib 52 of the neck side wire guide 12 is in contact with the outer surface of the ferrite core 11 via the small protrusion 53. The small protrusion 53 is a triangular pyramid-shaped protrusion having a sharp tip. When the neck side wire guide 12 is inserted into the ferrite core 11, part of the small protrusion 53 is inserted while being scraped off by the outer diameter of the ferrite core 11, so even if the outer diameter of the ferrite core 11 varies, the small protrusion 54 The neck side electric wire guide 12 can surely grip the ferrite core 11 by changing the amount of scraped off, and the neck side electric wire guide 12 and the ferrite core 11
The assembly accuracy of can be improved.

Example 8. FIG. 13 is a partial sectional view showing a part of a ferrite core and a neck side wire guide according to an eighth embodiment of the present invention. FIG. 13A shows a partial cross-sectional view of the neck side electric wire guide attached to the ferrite core, and FIG. 13B shows a part 34 of the neck side electric wire guide shown in FIG. 13A. An enlarged partial sectional view is shown.

In FIG. 13, reference numeral 33 denotes a bendable rod-shaped small projection provided on the inner wall 25 so as to project outward.
Other parts having the same reference numerals as those in FIG. 9 are portions corresponding to the same reference numerals in FIG. 9. At least four small rod-shaped projections 33 are provided at positions where the circular neck side electric wire guide 12 is rotated by 90 degrees when viewed from above.
3 has a length such that when the ferrite core 11 is fitted in the neck-side electric wire guide 12, its tip is located on the outer peripheral side with respect to the inner diameter of the ferrite core 11. The position where the four small protrusions are provided is not limited to the position where the four small protrusions are rotated by 90 degrees, and the same effect as that of the above-described embodiment can be obtained if the four small protrusions are provided at sufficiently separated positions.

When the neck side wire guide 12 is inserted into the ferrite core 11, the small protrusion 33 bends in the direction of the arrow and elastically deforms, so that the neck side wire guide 12 has a structure matching the inner diameter of the ferrite core 11. As in the above-described embodiment, variations in the inner diameter of the ferrite core 11 can be absorbed, and the assembling accuracy is improved.

Example 9. FIG. 14 is a partial sectional view showing a part of a ferrite core and a neck side wire guide according to a ninth embodiment of the present invention. FIG. 14A shows a partial cross-sectional view of the neck side wire guide attached to the ferrite core, and FIG. 14B shows a part 57 of the neck side wire guide shown in FIG. 14A. An enlarged partial sectional view is shown.

In FIG. 14, reference numeral 56 denotes a rod-shaped small projection provided on the inner surface of the rib 57 so as to project.
The same reference numeral as 2 is a portion corresponding to the same reference numeral in FIG. The rod-shaped small projection 56 is located at a position where the circular neck-side wire guide 12 viewed from above is rotated by 90 degrees.
At least four rod-shaped projections 56 are provided.
It has a length such that when the ferrite core 11 is fitted in the neck side electric wire guide 12, the tip of the ferrite core 11 is located on the inner peripheral side of the outer diameter of the ferrite core 11. The position where the four small protrusions are provided is not limited to the position where the four small protrusions are rotated by 90 degrees, and the same effect as that of the above-described embodiment can be obtained if the four small protrusions are provided at sufficiently separated positions.

Since the small projection 56 is bent and elastically deformed when the neck side wire guide 12 is inserted into the ferrite core 11, the neck side wire guide 12 has a structure matching the outer diameter of the ferrite core 11. As in the example, variations in the inner diameter of the ferrite core 11 can be absorbed, and the assembling accuracy is improved.

Example 10. FIG. 15 shows the tenth aspect of the present invention.
FIG. 6 is a partial cross-sectional view showing a part of a ferrite core and a neck side electric wire guide according to an example. In FIG. 15, reference numeral 47 denotes a cubic convex portion formed on the inner surface of the annular rib 12c in contact with the outer surface of the ferrite core 11 on the lower surface 12b side of the base portion of the neck side wire guide 12, and 48 indicates that the convex portion 47 is inserted. It is a concave portion formed at a position where the upper surface 11d of the ferrite core 11 and the outer surface are in contact with each other and having the same shape as the convex portion 47.

As described above, the convex portion 47 is provided on the inner surface of the annular rib 12c and the concave portion 48 is provided on the outer surface of the ferrite core 11, and when the ferrite core 11 is coupled to the annular rib 12c of the neck side wire guide 12, the concave portion 48 and the convex portion 48 are projected. Since the ferrite core 11 is attached to the neck side electric wire guide 12, the rattling in the circumferential direction with respect to the tube axis can be eliminated, and the assembling accuracy can be improved.

The places where the protrusions 47 and the recesses 48 are provided are not limited to the above locations. Also,
The shape is also arbitrarily selected depending on the case. Further, a protrusion may be provided on the ferrite 11 side and a recess may be provided on the neck side wire guide 12.

Example 11. FIG. 16 is a side view showing an assembly process of the wound deflection coil and the horizontal deflection coil bobbin. In FIG. 16, reference numeral 35 denotes a cylindrical horizontal deflection coil bobbin whose bottom portion spreads like a trumpet, and other reference numerals which are the same as those in FIG. 8 are portions corresponding to the same reference numerals in FIG. The wound assembly has a cylindrical shape, and the horizontal deflection coil bobbin 35 is housed in the hollow portion inside.

When the horizontal deflection coil bobbin 35 is accommodated, the neck side wire guide 12 is moved to the horizontal deflection coil bobbin 3
By contacting the outer surface of 5, the front, rear, left and right positions of the assembly with respect to the horizontal deflection coil bobbin 35 are determined, and by contacting the screen side wire guide 13 with the horizontal deflection coil bobbin 35, the vertical position of the assembly with respect to the horizontal deflection coil bobbin 35. Is determined.

FIG. 17 is a sectional view showing the structure of the portion where the neck side wire guide 12 contacts the horizontal deflection coil bobbin 35. FIG. 17A shows a partial cross-sectional view of the neck side wire guide attached to the ferrite core when the assembly is fitted in the horizontal deflection coil bobbin, and FIG. 17B shows FIG. Part 3 of the wire guide on the neck side shown in
8 is an enlarged partial sectional view.

In order to determine the positional relationship between the neck side wire guide 12 and the horizontal deflection coil bobbin 35, a positioning wall 36 protruding downward is provided on the inner peripheral side of the inner wall 22 of the neck side wire guide 12. . Positioning wall 3
6 is a bulging portion 3 on the surface facing the horizontal deflection coil bobbin 35 side.
I have 7. The bulging portion 37 has a larger protrusion as it goes downward. Since the positioning wall 36 of the neck side wire guide 12 elastically deforms in the direction of the arrow when the assembly in which the electric wire is wound on the horizontal deflection coil bobbin 35 is inserted, the outer surface of the horizontal deflection coil bobbin 35 is supported. The assembly accuracy of the (wound assembly) and the horizontal deflection coil bobbin 35 is improved. Even if the outer diameter of the horizontal deflection coil bobbin 35 is small and the outer diameter is small, the ratio of elastic deformation is small so that a gap is not formed, and when the outer diameter is large, the ratio of elastic deformation is large, so that the horizontal deflection coil bobbin is large. It is possible to prevent the assembly from fitting in 35. The groove provided between the positioning walls 22 and 36 is formed by the positioning wall 3
This is to reduce the force when moving 6 by elastic deformation by applying the principle of leverage, and without this groove, the force for elastic deformation becomes too large due to the difference in outer diameter and the assembly will not fit. There is a fear.

Example 12 FIG. 18 shows a twelfth aspect of the present invention.
FIG. 6 is a partial cross-sectional view showing a structure of a portion where the neck side wire guide according to the embodiment contacts the horizontal deflection coil bobbin. FIG.
FIG. 18B shows a partially sectional view in which the portion 42 of FIG. 18A is enlarged. The neck side electric wire guide according to the twelfth embodiment is provided with small protrusions instead of the bulging portion provided on the neck side electric wire guide according to the eleventh embodiment. In FIG. 18, 39 is a positioning wall for positioning the ferrite core 11 and the neck side wire guide 12, and 40 is a neck side wire guide for determining the positional relationship between the neck side wire guide 12 and the horizontal deflection coil bobbin 35. The inner peripheral side of the 12 positioning walls 39 further projects downward, and 41 is a conical projection provided on the inner peripheral side of the positioning wall 40.

As described above, at least four small protrusions 41 are formed on the inner surface of the neck side wire guide 12 of the deflection coil (an assembly including a ferrite core around which the wire is wound, a neck side wire guide and a screen side wire guide). The neck side electric wire guides 12, which are substantially annular as viewed, are provided at positions rotated by 90 degrees. The position where the four small protrusions are provided is not limited to the position where the four small protrusions are rotated by 90 degrees, and the same effect as that of the above-described embodiment can be obtained if the four small protrusions are provided at sufficiently separated positions. When inserting the deflection coil into the horizontal deflection coil bobbin 35, the tip of the small protrusion 41 is inserted into the outer surface of the horizontal deflection coil bobbin 35 while being scraped off. Therefore, even if there is a variation in the outer diameter of the horizontal deflection coil bobbin 35 or the inner diameter of the deflection coil, the variation can be adjusted by the amount by which the small protrusion 41 is scraped, and the assembly accuracy of the deflection coil and the horizontal deflection coil bobbin 35 is improved. .

Example 13 FIG. 19 shows a thirteenth embodiment of the present invention.
FIG. 6 is a partial cross-sectional view showing a structure of a portion where the neck side wire guide according to the embodiment contacts the horizontal deflection coil bobbin. FIG. 19
FIG. 19B shows a partially sectional view in which a part of FIG. 19A is enlarged. The neck side electric wire guide according to the thirteenth embodiment is provided with a bendable rod-shaped small protrusion instead of the bulging portion provided on the neck side electric wire guide according to the eleventh embodiment.

As described above, the deflection coil, that is, the neck side wire guide 12 of the assembly including the ferrite core around which the wire is wound, the neck side wire guide, and the screen side wire guide is used.
At least four small projections 46 are formed on the inner surface of the wall 45 of the neck side wire guide 12 which is substantially annular as viewed from above.
It is provided at each position rotated by degrees. The position where the four small protrusions are provided is not limited to the position where the four small protrusions are rotated by 90 degrees, and the same effect as that of the above-described embodiment can be obtained if the four small protrusions are provided at sufficiently separated positions. Then, the four small protrusions 46 form the horizontal deflection coil bobbin 35 as shown in FIG.
Is a protrusion having a length such that the tip of the small protrusion 46 is inserted inward from the outer diameter of the portion in contact with the neck side wire guide 12.

When the deflection coil is inserted into the horizontal deflection coil bobbin 35, the small protrusion 46 elastically deforms so as to bend in the direction of the arrow. Therefore, the amount of deformation of the small protrusion 46 changes depending on the difference in outer dimensions, and the neck side wire guide 12 is Since the structure is always matched with the outer surface of the horizontal deflection coil bobbin 35, the assembly accuracy of the deflection coil and the horizontal deflection coil bobbin 35 is improved. The rod-shaped small protrusion 46 is 90
It has an angle φ smaller than degrees. This is because the horizontal deflection coil bobbin 35 is formed by bending it upward in advance.
It is for making it possible to fit in smoothly.

In the eleventh to thirteenth embodiments, the neck side wire guide 12, the core and the horizontal deflection coil bobbin 35 have been mainly described, but the ferrite core 11 and the horizontal deflection coil bobbin 35 are also connected to the screen side wire guide. In order to determine the positional relationship with the horizontal deflection coil bobbin 35, a positioning wall having small protrusions and bulges that specify the front-rear and left-right relationships may be provided on the screen side wire guide 13 as in the above-described embodiment.

Example 14 In addition, in each of the above-described embodiments, the configuration in which the screen side wire guide is connected to the connecting column is described, but the screen side wire guide and the connecting column are integrally formed to connect the neck side wire guide to the connecting column. It can also be configured to do so.

FIG. 20 is a side view showing an assembling process of locking the neck side electric wire guide to the connecting column integrally formed with the screen side electric wire guide. In FIG. 20, 60
Is a neck side wire guide for fixing the wire wound inside the ferrite core so as to contact the upper surface of the ferrite core on the neck side, and 61 is arranged so as to contact the lower surface of the ferrite core on the screen side A screen-side wire guide for fixing the wire in cooperation with the neck-side wire guide, and 14 is a plurality of wound wires that are provided along the inner circumference of the base on the upper surface 60a of the base of the neck-side wire guide 60. The guide hook 16 has an inverted L-shaped cross section for hooking. A plurality of 16 are provided on the lower surface 61b of the base of the screen-side wire guide 61 along the inner circumference of the base and have L-shaped cross section for hooking the wound electric wire. Molded guide book, 65 is the bottom surface 60 of the neck side wire guide 60
b is a connecting piece which is integrally formed with the neck side electric wire guide 60 and has a bulged tip portion, and 62 is a screen side electric wire guide 6
1. A connecting column having a tubular locked portion 64 that is integrally coupled to the rib 61c that projects upward from the base upper surface 61a of the first unit, engages with the locking piece 19 and realizes the connection to the screen side wire guide 13. , 63 are ribs that are integrally formed with the upper end portion of the connecting columns 62 and that connect the plurality of connecting columns 62 in an annular shape.

In FIG. 20, a support piece 62, which is an integral part of a ferrite core, a neck-side electric wire guide 60 and a screen-side electric wire guide 61, is a connecting portion, and a locked portion 6.
It is intended to be attached to the ferrite core at the same time when it is connected and coupled at 4. Although not shown in the figure, the rib 63 has a fitting portion for accommodating the ferrite core, and a part of the ring shape can be divided when accommodating the ferrite core and can be connected after accommodating. It has become a structure. The fitting portion has a structure as shown in FIG. 22, which is used, for example, when dividing an electric wire guide described later.

Example 15. Further, although the description has been given of the one in which the connecting column is integrated with the neck side electric wire guide, it can be applied to the one formed of a molded product different from the neck side electric wire guide. For example, in FIG. 21, the neck side electric wire guide 60, the screen side electric wire guide 13 are connected to the ferrite core 11 by the connecting column 70, which is a connecting portion 65, a connected portion 75, and a connecting piece 1.
It is intended to be attached to the ferrite core 11 at the same time when it is connected and coupled with the locked portion 73. The connection column 70 is annularly connected by ribs 72 and 74, and has a configuration that is easy to assemble.

Example 16. Next, a wire guide according to a sixteenth embodiment of the present invention will be described with reference to FIG.
In each of the above-described embodiments, the neck side electric wire guide 12 and the screen side electric wire guide 13 are integrated. The electric wire guide according to the fourteenth embodiment is a divided electric wire guide, and as shown in FIG. 20, a split type neck side electric wire guide 12A, 1
2B is provided with fitting portions 58 and 59, respectively, and each fitting portion 58 is fitted with the mating fitting portion 59 to be assembled, whereby it can be handled in the same manner as the integrated type. Therefore, it goes without saying that each of the above embodiments can be applied to the split type electric wire guide.

As a result, the split type electric wire guide used in the prior art has an integral structure only by providing a fitting portion in a part thereof, and it is not necessary to raise a mold for the non-divided electric wire guide. The ribs are similarly fitted to the fitting portions 58, 5 as well.
9 can be provided, and the same effect as that of the above embodiment can be obtained.

In each of the above embodiments, a wide portion 76 as shown in FIG. 23 may be provided at the base of the connecting column 20. FIG. 7 is a diagram in which the structural member 80 is attached to the base portion 76 of the connection column 20.

By thus providing the structural member mounting portion 76 on the connecting column 20, the structural member 80 can be easily mounted. As an example of the mounting method, a connecting claw is used. Further, the structural member 80 is, for example, a terminal plate for entwining electric wires, a differential coil bobbin or the like. By increasing the area of the base portion 76, the area of the terminal plate to be attached can be increased, and the terminal spacing and the like can be increased.

FIG. 23 (a) shows a base portion 76 having a mounting surface oblique to the axis, but FIG.
(C) shows bases 77 and 78 whose mounting surface is parallel to the axis.
The connecting column 20 is shown. Manufacturing is easy because the mounting surface is parallel to the axis.

[0100]

As described above, according to the deflection coil of the invention described in claim 1, the neck side wire guide and the screen are connected by connecting the locking portion of the connecting column and the locked portion of the wire guide. Since it has a structure that becomes a saddle type coil bobbin that connects the side wire guide, the adhesive used when attaching the neck side wire guide and ferrite core and the screen side wire guide and ferrite core is not required.
This has the effects of improving manufacturing accuracy and facilitating manufacturing. Furthermore, the inner diameter of the ferrite core may vary.
The wire guide on the neck side or the wire guide on the screen side.
The position relationship with the
The effect of improving the assembly accuracy of the ferrite core
is there.

According to the deflection coil of the invention described in claim 2, since the deflection coil is provided on the outer side at a distance from the rib,
Even if the outer diameter of the ferrite core varies, it will affect the connection.
This is effective in improving the assembly accuracy of the deflection coil .

According to the deflection coil of the invention described in claim 3, the neck side wire guide or the screen side wire guide is provided.
Contacts the outer surface of the horizontal deflection coil bobbin,
Wire guide, screen side wire guide and ferrite core
The assembly consisting of
It is attached, and it has the effect of preventing axial misalignment .

According to the deflection coil of the invention described in claim 4, since the ferrite core is a non-split core, there is no split surface.
It can be easily installed without worrying about which position
A slit saddle coil bobbin using a tocoa
Can keep its coil manufacturing good and also core
The deformation of itself can be made small, and the assembly with both wire guides is accurate.
It has the effect of being able to stand .

[0104]

[0105]

[0106]

[0107]

[0108]

[0109]

[0110]

[Brief description of drawings]

FIG. 1 is a diagram showing a configuration of an assembly of a ferrite core, a neck side wire guide, and a screen side wire guide according to a first embodiment of the present invention.

FIG. 2 is a side view showing an assembly process of the assembly according to the first embodiment of the present invention.

3 is a cross-sectional view of the deflection coil shown in FIG.

FIG. 4 is a side view showing a configuration of an assembly of a ferrite core, a neck side wire guide, and a screen side wire guide according to a second embodiment of the present invention.

FIG. 5 is a cross-sectional view showing another configuration of the neck side wire guide used in the present invention.

FIG. 6 is a cross-sectional view showing another configuration of the neck side wire guide used in the present invention.

FIG. 7 is a diagram showing a configuration of a screen-side electric wire guide used in the present invention.

FIG. 8 is a side view showing a configuration of an assembly of a neck side wire guide, a ferrite core and a screen side wire guide according to a third embodiment of the present invention.

FIG. 9 is a partial sectional view showing a part of a neck side wire guide and a ferrite core according to a fourth embodiment of the present invention.

FIG. 10 is a partial sectional view showing a part of a neck side wire guide and a ferrite core according to a fifth embodiment of the present invention.

FIG. 11 is a partial cross-sectional view showing a part of a ferrite core and a neck side wire guide according to a sixth embodiment of the present invention.

FIG. 12 is a partial sectional view showing a part of a ferrite core and a neck side wire guide according to a seventh embodiment of the present invention.

FIG. 13 is a partial sectional view showing a part of a ferrite core and a neck side wire guide according to an eighth embodiment of the present invention.

FIG. 14 is a partial cross-sectional view showing a part of a ferrite core and a neck side wire guide according to a ninth embodiment of the present invention.

FIG. 15 is a partial sectional view showing a part of a neck side wire guide and a ferrite core according to a tenth embodiment of the present invention.

FIG. 16 is a side view showing the assembly of a wound deflection coil and a horizontal deflection coil bobbin.

FIG. 17 is a partial cross-sectional view showing the structure of the portion where the neck side wire guide according to the eleventh embodiment of the present invention contacts the horizontal deflection coil bobbin.

FIG. 18 is a partial cross-sectional view showing the structure of a portion in contact with the neck side wire guide and the horizontal deflection coil bobbin according to the twelfth embodiment of the present invention.

FIG. 19 is a cross-sectional view showing a neck side wire guide, a screen side wire guide and a support according to a thirteenth embodiment of the present invention.

FIG. 20 is a side view showing an assembling process of a screen side wire guide and a neck side wire guide having a connecting column according to a fourteenth embodiment of the present invention.

FIG. 21 is a side view showing an assembling process of assembling the neck side wire guide, the connecting column, the ferrite core and the screen side wire guide according to the fifteenth embodiment of the present invention.

FIG. 22 is a diagram showing the structure of a neck side wire guide according to a sixteenth embodiment of the present invention.

FIG. 23 is a diagram showing an example of a configuration of a connecting column of the present invention.

FIG. 24 is a cross-sectional view showing another configuration of the neck side wire guide used in the present invention.

FIG. 25 is a perspective view showing a configuration of a conventional deflection coil.

FIG. 26 is a diagram showing a conventional assembling process of the upper guide, the lower guide and the ferrite core.

[Explanation of symbols]

11 ferrite core, 12 neck side wire guide, 1
2c ribs, 13 screen side electric wire guides, 19 locking pieces, 20 connecting columns, 20d locked portions.

─────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-7-85815 (JP, A) Actually open 4-119950 (JP, U) Actually open 50-103520 (JP, U) Actually open 48- 48522 (JP, U) (58) Fields surveyed (Int.Cl. ⁷ , DB name) H01J 29/76

Claims (4)

(57) [Claims] 1. A substantially hollow rotating body-shaped ferrite core that gradually expands from the neck side toward the screen side, an annular neck-side wire guide provided along an end surface of the ferrite core on the neck side, and A deflection coil, comprising: an annular screen-side electric wire guide that is provided along an end surface of the ferrite core on the screen side and cooperates with the neck-side electric wire guide to determine the position of an electric wire wound along the inner surface of the ferrite core. The neck-side electric wire guide or the screen-side electric wire guide has a locking portion, and has one end that is coupled to the electric wire guide that does not have the locking portion and the other end that has a locked portion. The connecting column is the above
By being provided outside the outer surface of the ferrite core, and by locking the locked portion by the locking portion
The ferrite core is connected to the neck side wire guide and the
While maintaining the specified positional relationship between the clean side wire guides
Hold the neck side wire guide and the screen
The wire guide on the neck side and connect it to the wire guide on the neck side.
Or the wire guide on the screen side
(A) has a protrusion protruding so as to abut the inner surface of the core, and the protrusion abuts at least the ferrite core.
Also has protrusions at four places, and when inserting the ferrite core, the four protrusions
Part of the ferrite core is scraped off and inserted into the inner surface.
A deflection coil which is inserted. 2. A structure comprising the locking portion and the locked portion.
The connecting part that contacts the outer surface of the ferrite core and the outer surface.
The ferrite core and
It is arranged outside the member.
The deflection coil according to 1. 3. The neck side wire guide or the disc
The lean wire guide contacts the outer surface of the horizontal deflection coil bobbin.
The deflection coil according to claim 1, wherein 4. The ferrite core is a non-split core.
The deflection coil according to claim 1, wherein: