JPH0720775U - Convergence correction unit - Google Patents

Abstract

(57) [Abstract] [Purpose] There is no damage to the coil winding, there is no need to manually tape the end of the second convergence coil manually, and the end is manually
Provides a convergence correction unit that does not have the trouble of connecting cables one by one. [Structure] The coil winding 7 is wound twice around each winding body 14 of the collared connecting bobbin 11 to form a second convergence coil 18, and the terminal 5 of this coil 18 is connected to the pin terminal 12 by twisting. In this state, the hinge portion 20 is bent, the pair of second convergence coils 18 are arranged in parallel, the core is inserted into the core insertion hole 13, and the first convergence coil is inserted.
17 and the second convergence coil 18, a magnet and the like are incorporated and housed in a case, and integrated into a unit to form a convergence correction unit.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a convergence correction unit connected to a horizontal deflection coil and a vertical deflection coil of a deflection yoke mounted on a television receiver or a display device.

[0002]

[Prior art]

 In recent years, with the increase in size of color television receivers, the higher definition of display devices, and the flattening of the cathode ray tube surface, for example, blue B and red on the peripheral side of the screen of the cathode ray tube as shown in FIG. A large local misconvergence in which R is reversed on the left and right of the screen is likely to occur. Therefore, a convergence correction unit is connected to the neck side of the deflection yoke to correct the misconvergence that occurs on the screen of the cathode ray tube.

FIG. 2 shows a convergence correction unit incorporated in the deflection yoke. The convergence correction unit 1 is provided with a first convergence coil 17 connected to the vertical deflection coil of the deflection yoke at the central portion, and a pair of second convergence coils 17 connected to the horizontal deflection coils of the deflection yoke at both ends thereof. The above convergence coils 18 are arranged side by side, and the magnets 8 are provided on both ends of the second convergence coil 18, and these are housed in a case (not shown) to be integrally unitized. The second convergence coil 18 has an insulation coating copper wire 7 directly wound as a coil winding on the winding drum portion 14 of the drum core 6. In order to improve the winding efficiency of the second convergence coil 18, for example, two drum type cores 6A and 6B are arranged at right angles, and the coil winding 7 is wound in two lines on the drum type cores 6A and 6B. Is taken.

The convergence correction unit 1 is attached, for example, on a substrate 3 attached to the neck side 2 of the deflection yoke as shown in FIG. 4, and at the time of this attachment, the coil of the unit 1 is pulled out as a terminal. The wire 5 is connected to the connection terminal 4 of the substrate 3 and connected to a horizontal deflection coil (not shown) or a vertical deflection coil (not shown).

[0005]

[Problems to be solved by the device]

 However, since the convergence correction unit 1 directly winds the coil winding 7 around the drum-type core 6, if the winding drum portion 14 has burrs or the like, the coil winding 7 is apt to be damaged and short-circuiting or the like occurs. There is a risk of danger. The drum type core 6 has a problem that the machining cost is significantly increased because the core material is cut and processed.

Further, the lead wires 5 of the first and second convergence coils 17 and 18 are in a free state when the coil winding is finished. When the coil winding 7 is wound, tape the free lead wire 5 so that the free lead wire 5 does not get in the way when storing or moving the convergence coils 17 and 18. Although it is stopped with a tape, the tape is fixed by hand when the tape is fixed. Further, when the convergence correction coil 1 is connected to the deflection coil, the lead wire 5 is manually connected to the connection terminal 4 of the substrate 3 by pulling the connection wire 5 one by one, which is a troublesome work.

The present invention has been made to solve the above problems, and a first object thereof is to provide a convergence correction unit which does not cause damage to a coil winding, and a second object thereof. Provides a convergence correction unit that does not require a troublesome tape-tightening of the lead wires by hand and does not have the trouble of manually connecting the lead wires.

[0008]

[Means for Solving the Problems]

 The present invention is configured as follows to achieve the above object. That is, the present invention has a first convergence coil connected to the vertical deflection coil of the deflection yoke as a central portion, and a pair of second convergence coils connected to the horizontal deflection coils of the deflection yoke at both ends thereof. In the convergence correction unit, the pair of second convergence coils are formed by winding a coil winding around a connecting bobbin, and the connecting bobbin has a winding cylinder having a core insertion hole. And a pair of inner bobs of a bobbin with a brim having an inner brim provided at one end side of the winding drum section and an outer brim provided at the other end side of the bobbin body through a hinge portion at a part of the flange end. When the coil winding is wound around each of the winding body parts to form a pair of second convergence coils, the hinge part is bent to form a pair of second convergence coils. It is characterized in that the second convergence coil is arranged in parallel.

A terminal holding portion is connected to the outer collar of the connecting bobbin of the convergence correction unit, and a terminal for connecting the end of the second convergence coil is provided to the terminal holding portion. It is configured as a feature.

[0010]

[Action]

 Instead of directly winding the coil winding around the winding body of the core, the coil winding is wound around the winding body of the molding bobbin to prevent damage to the coil winding. In addition, two windings of coil winding are wound around each winding body of the continuous bobbin to form a pair of second convergence coils to shorten the winding time, and one of them is passed through a hinge part at a part of the inner flange end. The convergence coil on the side is bent, the second convergence coil is arranged in parallel, and the second convergence coil is housed in a case together with the first convergence coil and the like to integrally form a unit, thereby producing a convergence correction unit.

[0011]

【Example】

 Embodiments of the present invention will be described below with reference to the drawings. In the description of the present embodiment, the same reference numerals will be given to the same names as those in the conventional example, and detailed description thereof will be omitted.

FIG. 1 shows the main configuration of the convergence correction unit of this embodiment. This convergence correction unit is mounted on the substrate on the neck side of the deflection yoke as in the conventional example, and corrects the misconvergence that occurs on the screen of the cathode ray tube.

FIG. 1B shows the main configuration of the connecting bobbin of the convergence correction unit of this embodiment. The connecting bobbin 11 is molded using an insulating synthetic resin material or the like, and has a winding barrel portion 14 having a core insertion hole 13 having a circular through hole, and an inner collar 15 provided at one end side of the winding barrel portion 14. And a pair of flanged bobbins provided with an outer collar 16 provided on the other end side.A terminal holding portion 19 is connected to the outer collar 16 of the connecting bobbin 11, and this terminal holding portion 19 A terminal insertion hole 21 is provided in the terminal insertion hole 21, and a pin terminal 12 for connecting the terminal 5 of the second convergence coil 18 is inserted and fixed in the terminal insertion hole 21. Further, the inner flanges 15 of the pair of collared bobbins are connected to each other by the hinge portions 20 on both sides of the hinge member 9 via the hinge member 9 at a part of the peripheral edge of the collar.

Next, a method for manufacturing the convergence correction unit of this embodiment will be described with reference to FIG. First, as shown in FIG. 1 (b), a connecting bobbin 11 with a collar formed by molding using synthetic resin or the like is prepared. Insert and fix 12 so that both sides of the terminal holding portion 19 are projected. The terminal 5 of the coil winding 7 is entangled with the protruding pin terminal 12 on one side, and the coil winding 7 is wound twice around the winding body 14 of the connecting bobbin 11 to form the second convergence coil 18. The terminal 5 on the winding end side of the second convergence coil 18 is connected to the pin terminal 12 on the other side by tangling. With the coil winding 7 wound around each winding body portion 14, the bobbin on one side is bent 180 ° through the hinge portion 20 provided on the peripheral end side of the inner flange 15, and is shown in FIG. 1 (a). Thus, the pair of second convergence coils 18 are arranged in parallel. Next, a core (not shown) is inserted into the core insertion hole 13, the first convergence coil 17 is arranged in the central portion as shown in FIG. 2 (a), and both sides of this first convergence coil 17 are arranged. The second convergence coil 18 is arranged side by side, and the magnets 8 are arranged on both ends of the second convergence coil 18, housed in a case (not shown), and integrated into a unit to make a convergence correction unit. Form 1. The convergence correction unit 1 is attached to the neck side of the deflection yoke shown in FIG. 4, and the convergence correction unit 1 is connected to the connection terminal 4 of the horizontal deflection coil or the vertical deflection coil.

According to this embodiment, since the coil winding 7 is wound around the winding body portion 14 of the connecting bobbin 11 to form the second convergence coil 18, the drum core 6 can be formed as in the conventional case. Since the coil winding 7 is not directly wound around the winding drum portion 14, the coil winding is not damaged by the burrs of the core.

Further, since the expensive drum core 6 having high processing accuracy is not used, the cost can be reduced accordingly.

Furthermore, since the two second convergence coils 18 are formed by one winding by the double winding method, the winding time can be shortened.

Furthermore, since the terminal treatment of the second convergence coil 18 is performed in the winding process, it is not necessary to manually tape the terminal 5 as in the conventional case. Also, when connecting the convergence correction unit to the deflection coil, the connection position between the terminal 12 of the second convergence coil 18 and the terminal 4 on the side of the deflection coil is determined. The deflection coil can be automatically connected, and the processing time can be greatly reduced.

The present invention is not limited to the above-mentioned embodiments, and various embodiments can be adopted. For example, in the above embodiment, the pin terminal 12 is used as a terminal for connecting the terminal (lead wire) 5 of the second convergence coil 18, but a screw terminal may be used, and this connecting terminal is not limited to the pin terminal. .

Further, in the above embodiment, the core insertion hole 13 is a circular through hole and the core shape is a cylindrical shape. However, the core may be a prism shape and the core insertion hole may be a square hole, and the shape is not limited. .

[0021]

[Effect of device]

 According to the present invention, the coil wire is wound around the connecting bobbin to form the second convergence coil, so that the coil wire is not wound directly around the winding drum portion of the drum core as in the conventional case. There is no risk of damage to the coil winding.

Further, according to the present invention, it is not necessary to use an expensive drum-type core having a high processing accuracy as in the prior art, and an inexpensive connecting bobbin is used, so that the cost can be reduced.

Further, since the terminal treatment of the second convergence coil can be performed in the winding step, it is not necessary to manually tape the terminal as in the conventional case. Also, when the convergence correction unit is connected to the deflection coil, the connection position between the second convergence coil terminal and the deflection coil side terminal is determined, so the automatic machine automatically connects the second convergence coil and the deflection coil. The connection time can be shortened significantly.

Furthermore, when forming the pair of second convergence coils, the coil winding can be formed by winding the coil winding twice around the connecting bobbin, so that the winding time can be shortened.

[Brief description of drawings]

FIG. 1 is an explanatory diagram of a main part configuration of a convergence correction unit according to an embodiment.

FIG. 2 is an explanatory diagram of a main part configuration of a conventional convergence correction unit.

FIG. 3 is an explanatory diagram of an example of misconvergence that occurs on the screen of the cathode ray tube.

FIG. 4 is an explanatory diagram showing an example of a state in which a convergence correction unit is attached to a deflection yoke.

[Explanation of symbols]

 1 Convergence Correction Unit 5 Terminal (Leader Wire) 7 Coil Winding (Insulated Copper Wire) 9 Hinge Member 10 Deflection Yoke 11 Connecting Bobbin 14 Winding Body 15 Inner Collar 16 Outer Collar 17 First Convergence Coil 18 Second Convergence Coil 19 Terminal holding part 20 Hinge part

Front page continued (72) Inventor Kiyoshi Saito 2-10-10 Tenjin, Nagaokakyo, Kyoto, Murata Manufacturing Co., Ltd. (72) Inventor Tatsuya Sato 2-10-10 Tenjin, Nagaokakyo, Kyoto Murata Manufacturing Co., Ltd. (72) Inventor Haruyasu Yabushita 2-10-10 Tenjin, Nagaokakyo, Kyoto Prefecture Murata Manufacturing Co., Ltd.

Claims (2)

[Scope of utility model registration request] 1. A first convergence coil connected to a vertical deflection coil of a deflection yoke is provided at a central portion, and a pair of second convergence coils connected to horizontal deflection coils of the deflection yoke are arranged side by side on both sides of the first convergence coil. In the convergence correction unit, the pair of second convergence coils are formed by winding a coil winding around a connecting bobbin, and the connecting bobbin includes a winding drum portion having a core insertion hole, It consists of a pair of inner and outer collars of a bobbin with a collar having an inner collar provided on one end side of the winding drum section and an outer collar provided on the other end side, which are connected via a hinge section at a part of the collar end. A pair of second convergence coils is formed by bending a hinge portion in a state where a coil winding is wound around each of the winding barrel portions to form a pair of second convergence coils. Convergence correction unit with parallel arrangement of the convergence coil. 2. A terminal holding portion is connected to the outer collar of the connecting bobbin, and a terminal for connecting a terminal of the second convergence coil is provided to the terminal holding portion.
Convergence correction unit as described.