JPH0455404Y2 - - Google Patents

Description

[Detailed Description of the Invention] (a) Field of Industrial Application The present invention relates to a deflection yoke used in a color television receiver.

(b) Prior art In a deflection yoke used in an in-line gun type color picture tube, misconvergence correction is disclosed, for example, in Japanese Patent Application Laid-Open No. 61-99488 (HO4N9/28).
This can be performed using a convergence correction device such as that described in .

The differential coil used in the above correction device is installed as shown in FIG. 3, for example. That is, the claw pieces 1b, 1b formed on the sides of the rear enlarged portion 1a of the coil separator 1 are fitted into the through holes 3b, 3b formed in the terminal plate 3 provided with the terminals 2, 2..., and the differential The coil bobbin 4 is fixed to the coil separator 1 by fitting claw pieces 4a, 4a formed on a cylindrical coil bobbin 4 around which the coils 5, 5 are wound into the through holes 3b, 3b of the terminal plate 3. Then, the lead wires of the horizontal and vertical deflection coils and the differential coil are wired on the terminal plate 3. Furthermore,
This terminal plate 3 is covered with a terminal cover 6 for preventing electric shock.

However, in the above method, a terminal cover must be provided separately, which increases the number of parts and assembly man-hours, and causes an increase in cost.
In addition, the terminal cover easily comes off and there is a risk that it will fall off during transportation and the terminals will be exposed.

(c) Problems to be Solved by the Invention The present invention has been devised in view of the above-mentioned points, and provides a deflection yoke that reduces the number of parts and assembly man-hours, and reduces costs.

(d) Means for Solving the Problems The present invention includes a coil bobbin around which a convergence correction coil is wound, and a terminal cover that covers the terminals, which is integrally molded.

(e) Effect When the coil bobbin is attached to the terminal board by the above-mentioned means, the terminal is covered by the terminal cover.

(f) Example An example of the present invention will be described below with reference to the drawings.

FIG. 1 is an exploded perspective view of a deflection yoke according to an embodiment of the present invention, and the same parts as in FIG. 3 are given the same reference numbers and their explanation will be omitted.

In the same figure, the terminal board 7 has four terminals 2, 2.
... are planted, and through holes 7a, 7a into which the claw pieces 1b, 1b fit, and through holes 7b, 7b... into which claw pieces 8b, 8b... of the coil bobbin 8, which will be described later, fit are formed.

On the other hand, as shown in Fig. 2 A and B, the differential coil 5,
The coil bobbin 8 on which the coil bobbin 5 is wound is integrally molded with cylindrical terminal covers 8a, 8a, . . . at positions corresponding to the terminals 2, 2, . Claw pieces 8b, 8b, . . ., which can be fitted into 7b, protrude.

Next, the installation of the terminal plate and coil bobbin will be explained.

First, the terminal plate 7 is fixed by fitting the through holes 7a, 7a of the terminal plate 7 into the claw pieces 1b, 1b of the rear enlarged portion 1a of the coil separator.

Next, the lead wires of the deflection coil and the differential coil are wound around the terminals 2, 2, . . . and soldered by dipping.

Furthermore, the terminal covers 8a, 8a of the coil bobbin 8
... covers the terminals 2, 2..., the claw pieces 8b, 8.
b... are fitted into the through holes 7b, 7b... of the terminal plate 7.

In this state, the terminals 2, 2... are connected to the terminal covers 8a, 8
Since it is covered by a..., there is no risk of electric shock from touching the terminals 2, 2... during adjustment, service, etc.

(g) Effects of the invention As described above, according to the invention, since the terminal cover is integrally formed with the coil bobbin to which the differential coil is attached, it is possible to reduce the number of parts and assembly man-hours, as well as reduce costs.

Furthermore, there is no risk of the terminal cover falling off and exposing the terminals.

[Brief explanation of the drawing]

FIG. 1 is an exploded perspective view of a deflection yoke according to an embodiment of the present invention, and FIGS. 2A and 2B are a front view and a plan view of a coil bobbin of this embodiment. FIG. 3 is an exploded perspective view of a conventional deflection yoke. 1... Coil separator, 2... Terminal, 3, 7
... Terminal board, 4, 8 ... Coil bobbin, 6, 8a
...Terminal cover, 5...Differential coil.

Claims (1)

[Scope of utility model registration request] In a deflection yoke comprising a coil bobbin for winding a convergence correction coil, and a terminal plate to which the coil bobbin is attached and a terminal to which lead wires of the coil and deflection coil are wired, the terminal plate covers the terminal on the coil bobbin. Deflection yoke made by integrally molding the cover.