JPH05325832A - Saddle type bobbin for deflection coil - Google Patents

Abstract

PURPOSE:To provide the saddle type bobbin for deflection coil, which can perform the winding work without colliding of a nozzle and flanges at crossover parts at the time of winding a multi-conductor parallel cable around a saddle type bobbin. CONSTITUTION:A coil winding groove 5 is provided in each crossover part of the head side and the neck side of a saddle type bobbin 2. This coil winding groove 5 is formed between the inside flange 3A and the outside flange 3B, and the height of the inside flange 3B is set lower than the height of the outside flange 3A of the crossover part.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a saddle type bobbin for a deflection coil of a deflection yoke mounted on a television receiver, a display device or the like.

[0002]

2. Description of the Related Art In recent years, with the advent of high-definition television receivers and the advent of high-definition display devices, the color shift of the screen of the cathode ray tube of these devices, that is, the standards such as convergence, have become increasingly strict. Along with this, increasingly precise control of the deflection magnetic field is desired.

FIG. 11 shows an example of a bobbin of a saddle type deflection coil used for a general deflection yoke. The bobbin 2 is provided with a plurality of coil winding grooves 5, and windings 11 as shown in FIG. 10, for example, are laminated and wound in the coil winding grooves 5 to form a deflection coil. As the winding wire 11, a conductor wire (including a litz wire) on which the insulating layer 4 is applied is coated with an adhesive.

When winding the winding wire 11 in the coil winding groove 5, the winding wire 11 is laminated and wound by an automatic winding machine of a fryer type, one by several as single wires which are not bundled. This forms the deflection coil. Then
Electric current is applied to the coil wound in layers, and the adhesive applied to the outside of the insulating layer 4 is heated and melted to bond the windings to each other to form a deflection coil.

[0005]

[Problems to be Solved by the Invention] However, the winding 11
When the winding direction is changed, the winding direction may change and the winding 11 may be misaligned and wound, as shown in Fig. 10.
There is a problem that the order of 11 is changed and it is not possible to wind according to the design instruction, and the deviation state of the winding 11 of each deflection coil that is mass-produced also varies from product to product, and the deflection magnetic field is reduced. There was a problem that it could not be controlled accurately. Further, since the mass-produced products vary, there is a problem that the yield is reduced, and there is a problem that the conventional winding method cannot cope with the cost. Even with this conventional method, if the width of the coil winding groove is made narrower, the deviation or deviation of the winding 11 can be reduced and the design instruction can be approached. In this case, however, the ratio L / R of the inductance L and the resistance R is reduced. Becomes smaller and the coil performance is degraded.

In order to solve such a problem, the applicant of the present invention has replaced the conventional one-wire coil conductor wire with one wire, as shown in FIG.
Proposed is a deflection coil formed by using a multicore parallel conductor wire such as a ribbon wire as shown in FIG.

The multi-core parallel conductor 15 is shown in FIG.
As shown in FIG. 3, conductor wires 8 made of copper, aluminum or the like covered with the insulating layer 4 are arranged in parallel by using an adhesive 6 and bonded, or as shown in FIG. A plurality of conductor wires 8 covered with the insulating layer 4 are arranged in parallel on one surface of the insulating sheet 7 and bonded with an adhesive 6, or as shown in (c) of FIG. A plurality of conductor wires 8 on which an adhesive layer 9 is formed are arranged in parallel and adhered, or a plurality of thermoplastic adhesive layers 20 formed on the outer side of the insulating layer 4 as shown in FIG. The conductor wires 8 are arranged in parallel and bonded to each other.

The conductor wires 8 of the multi-conductor parallel conductors 15 are fixed in order within the respective multi-conductor parallel conductors 15. Therefore, the conductor wires 8 are displaced in the respective multi-conductor parallel conductors 15, or Since the order of the wires does not change, the multicore parallel conductors 15 are used, and the multicore parallel conductors 15 are wound around the coil winding groove 5 in a layered manner so that the conductor wires 8 are greatly displaced. It can be expected to manufacture a deflection coil that can solve the above problem.

In order to manufacture the above-mentioned deflection coil, a multi-core parallel conductive wire 15 is inserted into a coil winding groove 5 having a collar 3 as shown in FIG. 7, and laminated in parallel with the bottom surface 10 of this coil winding groove 5. It is achieved by winding. This multi-core parallel conductor
The deflection coil formed by using 15 can greatly improve the characteristics as compared with the conventional one.

By the way, the saddle type bobbin for the deflection coil has coil winding grooves 5 in the crossover portions 18 and 19 of the coils on the head side and the tail side as shown in FIG. 8, for example. The height of the collar 3B inside the groove 5 is set higher than the height of the collar 3A outside. When a multifilamentary parallel conductor 15 is wound around the coil winding groove 5 of the bobbin 2 using a conventional winding machine for winding a single wire (not shown), the nozzle tip of the winding machine moves from the coil winding groove 5 to the coil winding groove 5. Since the multi-core parallel conductors 15 are twisted and wound by the connecting wire portions 18 and 19, and may be disengaged from the coil winding groove 5 because they are arranged far apart. Therefore, the applicants have proposed that the multicore parallel conductor 15
Using the winding machine shown in FIG. 3 which has a structure capable of shortening the distance between the tip of the nozzle and the coil winding groove 5, the multi-core parallel conductor 15 is stably inserted into the coil winding groove 5 and wound. Proposed.

The winding machine of this proposed example is constructed as follows. That is, 1 is a base, 17 is a pillar, 33 is a bobbin mount, 31 is a bobbin holding member, 25 is a bobbin of multi-conductor parallel conductors 15, 12 is a bobbin rotating mechanism, 16 is a back tension adding means, and 15 is a multi-core. Parallel conductors, 26 is a nozzle support, 28 is a nozzle rotating mechanism, 27 is a nozzle shaft, 30 is a nozzle at the tip of the nozzle shaft, 23 is a nozzle bed, 35 is a nozzle column, 2 is a bobbin, 41 is a support for the bobbin 2. A base, 42 is a bobbin holding portion, 40 is an arm, 38 is a first bobbin rotating mechanism, 37 is a bobbin side support, and 44 is a second bobbin rotating mechanism.

The multi-conductor parallel conductor 15 wound around the bobbin 25 is inserted into the nozzle shaft 27 while the tension is adjusted by the tension applying means 16, and the multi-conductor parallel conductor 15 is provided.
The tip of the nozzle 30 is installed close to the coil winding groove 5 of the bobbin 2. The nozzle shaft 27 is a nozzle rotation mechanism.
A nozzle support base 26 is attached to a nozzle support 35 so as to be movable in the up and down Y directions. Further, the nozzle support column 35 is erected so as to be movable in the X direction (horizontal direction). Further, a nozzle 30 is attached to the lower end side of the nozzle shaft 27 so as to be rotatable in a desired direction.

Further, the bobbin holding portion 42 of the bobbin 2 is movable in the Z direction (direction orthogonal to the paper surface of FIG. 3B). The bobbin 2 is rotatable about the X axis by the rotation operation of the first bobbin rotating mechanism 38,
Further, the second bobbin rotating mechanism 44 is driven to be rotatable about the Z axis.

Each of the above rotation and movement drive mechanisms is controlled by a controller (not shown), and the multi-core parallel conductor 15 is smoothly wound around the coil winding groove 5 of the bobbin 2 in layers to form a deflection coil. It has become so.

Next, a work for manufacturing a saddle type deflection coil using this winding device will be described with reference to FIGS. 4 and 5. First, as shown in FIG. 4A, the bobbin 2 moves in the direction of the arrow, and at the same time, the nozzle 30 moves in the X-axis direction so as to face the inner peripheral surface of the bobbin at a predetermined interval. Thereby, the multi-core parallel conductor 15 is wound in the groove of the right inner peripheral wall surface 45 of the bobbin 2. When the nozzle 30 faces the upper end side of the bobbin 2 on the head side, as shown in FIG. 4B, the nozzle 30 is rotated from the a position to the b position to the c position along the arrow. At this time, when the nozzle 30 is once inflated to a position beyond the brim 3B and then returned to the c position and the multicore parallel conductor 15 is wound, it is smoothly wound. Next, set the bobbin 2 90 ° about the X axis.
By rotating the bobbin 2 in the counterclockwise direction by 180 ° about the X axis of the Z ₁ point in the state shown in (c) of the figure by rotating clockwise, the state of (d) of the figure is obtained. Then, the multi-core parallel conductor 15 is wound around the connecting wire portion on the head side of the bobbin 2. Then, the bobbin 2 is rotated clockwise about the X axis by 90 °, and the state shown in FIG. Next, the nozzle 30 is rotated from the position c through the position d to the position a along the arrow. In this case, the multicore parallel conductor wire can be smoothly wound by temporarily inflating the nozzle 30 from the c position to the flange 3B side and then rotating it to the a position.

Next, in this state, the bobbin 2 is moved downward along the Z-axis, and at the same time, the nozzle 30 is opposed to the inner peripheral surface of the bobbin 2 at a constant distance from the X-axis. By moving to the left, the multi-core parallel conductor 15 is wound in the groove on the opposite side of the bobbin 2. When the center of the groove of the crossover part on the tail side of the bobbin 2 is lowered to a position facing the nozzle 30, the nozzle 30 is moved from the position a to the position b as shown in FIG.
After moving through the position to the c position along the arrow, the nozzle 30 also rotates once to the position beyond the collar 3B, inflates the multicore parallel conductor 15, and then returns to the c position. next,
By rotating the bobbin 2 clockwise by 90 ° with respect to the X axis, the state shown in FIG. 5B is obtained. In this state, the bobbin 2 is rotated 180 ° counterclockwise with respect to the Z-axis to bring it to the state shown in FIG. 5C, so that the crossover portion on the tail side is wound.

Next, the bobbin 2 is rotated clockwise by 90 ° about the X axis to the state shown in FIG. 5D, and in this state,
By once rotating the nozzle 30 in the opposite direction to a position beyond the collar 3B, inflating the multi-core parallel conductor 15, and then rotating the nozzle 30 from the c position to the d position to the a position along the arrow, (A), the multi-core parallel conductor 15 is continuously wound in each groove of the bobbin 2 by repeating the above operation, and a saddle type deflection coil is formed.

However, if the inner collar 3B of the crossover portion on the head side and the tail side of the bobbin 2 is formed to be higher than the outer collar 3A, the nozzle 30 extends from the inner peripheral surface in the longitudinal direction of the bobbin. When moving to the crossover portion, the nozzle 30 is rotated along the arrow from the position a to the position b to the position c as shown in FIG. 4B, but the nozzle 30 is moved over the inner collar 3B. It has been found that when the multi-core parallel conductor 15 is swung up and the multi-core parallel conductor 15 is inflated, then the nozzle 30 is returned to the c position and the multi-core parallel conductor 15 is wound, the winding is smoothly performed. There is a problem that the nozzle 30 easily hits the inner collar 3B, which makes the work difficult. The above phenomenon is shown in Figure 4.
(B) and (e) of FIG. 5 and (a) and (d) of FIG.

Further, the coil winding groove 5 of the tail side connecting wire portion 18
As shown in FIG. 6, when the inner flange 3B is high, the cover 22 becomes large and bulky when the covers 22 are covered on the flanges 3A and 3B and the band 24 is fastened to the cathode ray tube. There was a problem such as requiring space.

The present invention has been made to solve the above-mentioned problems, and an object thereof is to prevent a nozzle from hitting a brim of a connecting wire portion when winding a multicore parallel conductor wire around a saddle type bobbin. It is an object of the present invention to provide a saddle type bobbin for a deflection coil, which is easy to wind and can accurately wind a multi-core parallel conductor wire.

[0021]

In order to achieve the above object, the present invention is configured as follows. That is, the saddle type bobbin for the deflection coil of the present invention has a coil winding groove for forming a saddle type deflection coil by winding a multi-core parallel conductor wire on a saddle type bobbin, and the head side and the neck side of the bobbin are formed. The coil winding groove around which the crossover portion is wound is formed between the outer and inner flanges, and the height of the inner flange of the crossover portion is set to be equal to or lower than the height of the outer flange. Has been done.

[0022]

[Operation] When the nozzle moves from the inner circumferential surface of the bobbin in the longitudinal direction to the crossover portion, the nozzle is rotated once until the nozzle has passed the inner rim, and the multicore parallel conductor is inflated before the nozzle is moved. When returning to the center of the coil winding groove and inserting the multi-core parallel conductor wire into the coil winding groove, the height of the collar inside the crossover part should be less than the height of the outside collar, so that the nozzle is inside the collar. Coil winding work is possible without hitting.

[0023]

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 proposed example, and detailed description thereof will be omitted. FIG. 1 shows the configuration of the essential parts of a saddle type bobbin for a deflection coil according to this embodiment. FIG. 2 shows a perspective view of a saddle type bobbin for a deflection coil according to this embodiment.

The characteristic feature of this embodiment is that the height of the inner collar of the coil winding groove provided on the connecting wire portion on the head side and the neck side of the bobbin is equal to or less than the height of the outer collar. Yes, other configurations are similar to the proposed example.

In these figures, coil winding grooves 5 are formed between the brims 3A on the outer side and 3B on the inner side of the bridging line portions 18 and 19 on the neck side and the head side of the bobbin 2, respectively. The height of the collar 3B on the inner side of the coil winding groove 5 is set smaller than the height of the collar 3A on the outer side. The nozzle 30 of the multi-core parallel conductor 15 is installed close to the collar 3A of the coil winding groove 5.

Next, when the deflection coil is manufactured by winding the multicore parallel conductor 15 on the saddle type bobbin 2 for the deflection coil having the above-mentioned structure using the winding machine of the proposed example, the multicore parallel conductor 15 is wound. The work is performed by the same procedure as the winding work shown in FIGS. 4 and 5.

According to the present embodiment, the height of the collar 3B inside the crossover is set lower than the height of the outer collar 3A in the coil winding grooves of the crossover on the head side and the neck side. Since the tip of the nozzle 30 of the multi-core parallel conductor 15 can be wound closer to the coil winding groove 5 and the multi-core parallel conductor 15 can be wound in the groove of the crossover portion, the multi-core parallel conductor 15 can be extended from the coil winding groove 5 to The core parallel conductor 15 does not come off, and it is possible to wind it stably and accurately. Further, since the height of the inner collar 3B is made lower than the height of the outer collar 3A, (b) of FIG.
In the steps (e) and (a) and (d) of FIG.
Nozzle 30 when rotating after inflating over Tsuba 3B
The collision with the collar 3B is eliminated, and the work becomes easier.

Furthermore, since the inner collar 3B is made lower than the height of the outer collar 3A, the neck side cover 22 can be made smaller and the neck side space can be narrowed.

The present invention is not limited to the above-mentioned embodiment, and various embodiments can be adopted. For example, in the above embodiment, the height of the collar 3B on the inner side of the crossover portion is set lower than the height of the collar 3A on the outer side, but the height of the collar 3B may be equal to the height of the collar 3A. The height of the coil 13 of the multi-core parallel conductive wire laminated in the coil winding groove 5 of the crossover portion is h _W , the height of the outer collar 3A is h _A , and the height of the inner collar 3B is h _B. Then, the configuration may be h _W ≦ h _B ≦ h _A.

[0030]

According to the present invention, since the heights of the inner flanges of the crossover portions on the head side and the neck side are set to be equal to or lower than the heights of the outer flanges,
Since the end of the nozzle of the multi-core parallel conductor can be wound close to the height of the flange outside the coil winding groove, the multi-core parallel conductor can be wound in a stable and accurate manner. Is possible.

Further, since the height of the collar on the inner side of the connecting wire portion is set to be equal to or lower than the height of the outer collar, the nozzle is moved from the inner circumferential surface of the bobbin in the longitudinal direction to the connecting wire portion or from the connecting wire portion to the bobbin. When moving to the inner peripheral surface in the longitudinal direction, when the nozzle is rotated, the nozzle does not hit the inner collar, and the winding operation becomes easy.

[Brief description of drawings]

FIG. 1 is an explanatory diagram of a main part configuration of a saddle type bobbin for a deflection coil according to an embodiment.

FIG. 2 is a perspective explanatory view of the saddle type bobbin for the deflection coil.

FIG. 3 is an explanatory diagram of a winding machine of a proposed example.

FIG. 4 is an explanatory diagram of a winding work of a multi-core parallel conductor wire of a proposed example.

FIG. 5 is an explanatory view of the winding work following FIG.

FIG. 6 is an explanatory view showing a state in which a cover is put on the neck side collar of the bobbin.

FIG. 7 is an explanatory diagram of a proposal example of manufacturing a deflection coil by stacking multicore parallel conductive wires.

FIG. 8 is an explanatory view showing a saddle type bobbin for a conventional deflection coil in a coil winding state of a multi-core parallel conductor wire.

FIG. 9 is an explanatory view of various forms of a multi-core parallel conductor wire.

FIG. 10 is an explanatory diagram of a coil winding state of a conventional deflection coil.

FIG. 11 is an explanatory diagram of an example of a bobbin of a conventional deflection coil.

[Explanation of symbols]

 2 Bobbin 3A, 3B Tsuba 5 Coil winding groove 15 Multi-core parallel conductor wire 18 Tail side crossover wire part 19 Head side crossover wire part 30 Nozzle

Claims (1)

[Claims] 1. A coil winding in which a coil winding groove for forming a saddle-type deflection coil is formed by winding a multi-core parallel conductor wire on a saddle-shaped bobbin, and a crossover portion on a head side and a neck side of the bobbin is wound. A saddle type bobbin for a deflection coil, characterized in that the groove is formed between the collar of the outer collar and the collar of the inner collar, and the height of the collar on the inside of the crossover portion is set to be equal to or lower than the height of the collar of the outside.