JPS5814517Y2 - Deflection yoke device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a deflection yoke device installed on a cathode ray tube of a color television receiver or the like.

Recently, as a deflection yoke device installed on a cathode ray tube,
A deflection coil was developed, in particular a structure in which multiple horizontal deflection coil conductors were bundled and wound in a saddle shape on the inner surface of the coil frame via a coil frame with multiple conductor insertion grooves at the front and rear ends. It has been done.

In this case, astigmatism can be reduced,
In addition, in order to obtain a deflection magnetic field distribution that can improve deflection distortion, the winding distribution of the conductor wire of the horizontal deflection coil is changed to a strong pin magnetic field at the head (front end side) and a barrel magnetic field at the tail (back end side). - It is desired that the winding is configured so that a pin magnetic field is generated as a whole, and that the conductor is efficiently wound in the conductor insertion grooves at the front and rear ends according to the winding distribution.

The present invention relates to a deflection yoke device made in view of the above-mentioned matters, and in particular, a plurality of conductors led out from one of the conductor insertion grooves at the rear end of the coil frame are connected to one or more of the conductor insertion grooves at the front end of the coil frame. This invention relates to a deflection yoke device having a structure in which the deflection yoke is wound around the yoke.

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

In FIG. 1, 1 is a deflection yoke main body, which includes a core 2, a vertical deflection coil 3 wound directly around the outer circumference of the core 2 in a toroidal shape, and a pair of semicircular coil frames attached to the inner surface of the core 2. It consists of an annular coil frame 4 formed by joining together the coil frame 4, and a horizontal deflection coil 5 wound in a saddle shape on the inner surface of the coil frame 4 via the coil frame 4. It is attached and fixed via a tightening means or the like.

The coil frame 4 of the deflection yoke main body 1 has a front end 4A and a rear end 4.
B has a plurality of conductor insertion grooves 7 and 8, and a plurality of conductor wires 5A of the horizontal deflection coil 5 are bundled together and inserted into the conductor insertion grooves 7 and 8.
The coil is fitted into and locked at a predetermined position, the winding position is regulated, and the coil frame 4 is wound precisely in a hollow shape on the inner surface thereof.

The conducting wire 5A of the horizontal deflection coil 5 wound in a saddle shape on the inner surface of the coil frame 4 has a strong pin magnetic field at the head (front end side) of the coil frame 4, a barrel magnetic field at the tail (rear end side), and as a whole. In order to obtain a winding distribution that generates a pin magnetic field, and additionally, a difference in the number of conductor insertion grooves I and 8 formed at the front end 4A and rear end 4B of the coil frame 4 (generally, The number of grooves in the rear end 4B is larger than the number of grooves in the rear end 4B), as shown in FIG.
(For example, a conductor 5A led out from one groove 8A of the rear end 4B of the coil frame 4 extends over one or more grooves of the conductor insertion groove 7 of the front end 4A. It fits into the two grooves 7A and 7B.

(Similarly below) It is wound in a saddle shape.

In the deflection yoke device having such a configuration, the conductor wire 5A of the horizontal deflection coil 5 is precisely wound in a hollow shape on the inner surface of the coil frame 4 through the conductor insertion grooves 7 and 8 formed in the coil frame 4.

At this time, the conductive wire 5A of the horizontal deflection coil 5 is connected to the top 4 of the coil frame 4, which is optimal for generating a deflection magnetic field distribution that can reduce astigmatism and improve deflection distortion.
The winding thickness is thin near S (the window W side of the horizontal deflection coil 5) and gradually becomes thicker toward the bottom 4T, and near the head of the coil frame 4, as shown in FIG. 3a. The conductor fitting groove 8 of the rear end 4B of the coil frame 4 is arranged so that the winding distribution is approximately C0820 with respect to the winding angle α, and the winding distribution is approximately C082θ with respect to α, as shown in FIG. It is led out from one groove and is fitted and locked into one or more grooves of the conducting wire fitting groove 7 of the front end 4A, and is wound in a saddle shape.

In one embodiment of the deflection yoke device of the present invention, the coil frame 4 attached to the inner surface of the core 2 is constructed by joining a pair of semi-circular coil frames to form a ring. A coil frame integrally molded into an annular shape may be used as long as it does not cause any trouble during operation.

Further, in one embodiment of the present invention, the horizontal deflection coil 5
For example, the vertical deflection coil 3 may be wound in a hollow shape through a coil frame in the same way as the horizontal deflection coil 5. The configuration of the deflection yoke main body 1 (the winding shape of the coil, the shape of the coil frame, etc.) is not limited to that shown in the embodiment.

As described above, according to the deflection yoke device of the present invention, at least a plurality of conductors of the horizontal deflection coil are bundled on the inner surface of the coil frame through the coil frame having a plurality of conductor insertion grooves at the front end and the rear end. In a deflection yoke device, the conductors of a plurality of horizontal deflection coils led out from one of the conductor insertion grooves at the rear end of the coil frame are wound around one or more of the conductor insertion grooves at the front end of the coil frame. Turn the conductor of the horizontal deflection coil near the head of the coil frame to approximately C082θ with respect to the winding angle α.
, a winding distribution of approximately C083/2θ with respect to the winding angle α near the tail, for example, a deflection magnetic field distribution that can reduce astigmatism and improve deflection distortion; In other words, it is extremely easy to obtain a deflection magnetic field distribution with a strong pin magnetic field at the head, a barrel magnetic field at the tail, and a pin magnetic field as a whole, and it is possible to always maintain good deflection characteristics. The conductor wire can be efficiently wound in the conductor insertion grooves at the front and rear ends of the frame according to the winding distribution, and the practical effect as a precision winding type deflection yoke device is excellent.

[Brief explanation of drawings]

Fig. 1 is a perspective view of the structure of a deflection yoke device according to an embodiment of the present invention, Fig. 2 is a side view of the coil frame showing the winding state of the conductor, and Figs. FIG. 3 is an explanatory diagram of the winding distribution of the conducting wire in the tail portion. 1... Deflection yoke body, 4... Coil frame, 5A... (horizontal deflection coil) conductor, 7, 8
... Conductor insertion groove.

Claims (1)

[Scope of utility model registration request] In a deflection yoke device comprising a coil frame having a plurality of conductor insertion grooves at the front end and rear end thereof, at least a plurality of conductors of a horizontal deflection coil are bundled and wound in a hollow shape on the inner surface of the coil frame. The conductors of a plurality of horizontal deflection coils led out from one of the conductor insertion grooves at the rear end of the frame are wound around one or more of the conductor insertion grooves at the front end of the coil frame, and the conductors of the horizontal deflection coil are inserted into the coil. Near the head of the frame, the winding angle α is approximately C082θ, and near the tail, the winding angle α is approximately CO8′/! A deflection yoke device characterized by having a winding distribution of θ.