JPH05314901A - Deflection coil and manufacture thereof - Google Patents

Abstract

PURPOSE:To provide a deflection coil and a manufacturing method thereof, which excels in the dimensional accuracy without a wire coming off, the order of a wire being replaced, the friction of a nozzle, the deformation of a bobbin, the separation of an insulating layer and the like, by using a multicore parallel conductive wire as the coil conductive wire of a deflection coil. CONSTITUTION:Three multicore parallel conductive wires 15A, 15B, 15C are overlapped so as to form a saddle-type deflection coil, and with the multicore parallel conductive wires 15A, 15B, 15C being drawn out from the nozzle of an automatic winding machine not depicted, the multicore parallel conductive wires are inserted into a coil winding groove 5 and wound in lamination layers to form the saddle-type deflection coil.

Description

Detailed Description of the Invention

[0001]

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

[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. 10 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. For example, as shown in FIG. 9, windings 11 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 by one to several windings as it is as a single wire which is not bundled and is thus deflected. A coil is formed. Next, the laminated and wound coil is energized to heat and melt the adhesive applied to the outside of the insulating layer 4 to bond the windings to each other to form a deflection coil.

[0005]

[Problems to be Solved by the Invention] However, the winding 11
As shown in FIG. 9, when the winding direction of the winding is changed, the winding 11 is deviated to one side and wound, or the winding is wound.
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 single-wire coil conductor wire with one wire 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-conductor 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 multi-core parallel conductors 15 are used, and the multi-core parallel conductors 15 are fed out from the nozzle of the automatic winding machine (not shown). For example, as shown in FIG. By inserting the multi-core parallel conductor wire 15 into the coil winding groove 5 having the above and winding it in layers, it is possible to manufacture a deflection coil capable of eliminating a large displacement of the conductor wire 8 and the like. The deflection coil formed by using the multi-core parallel conductor 15 can significantly improve the characteristics as compared with the conventional one.

However, when a deflection coil is manufactured using the multi-core parallel conductor 15 of the proposed example, since the coil is wound using one multi-core parallel conductor, a large number of coils are required before the coil winding is completed. Since it has to be wound a number of times, it takes a long working time and the working efficiency of the winding work is poor. In addition, when manufacturing a low-impedance horizontal deflection coil,
It is necessary to use a conductor wire 8 having a large diameter (for example, a diameter of 0.7 mm), and the multi-core parallel conductor wire 15 formed by the conductor wire 8 having a large diameter is wound into a coil winding groove 5 through a nozzle of an automatic winding machine.
Since the wire is thick and does not adapt to the shape of the winding type when laminated and wound inside, it cannot be wound along the shape of the winding type unless it is wound with a large tension, and it is extremely wound. Hateful. Moreover, if wound with a large tension, stress may be applied to the multi-core parallel conductor 15 itself and the nozzle or bobbin of the winding machine, the insulating layer 4 may be peeled off, or the wire may be cut in some cases. There is a possibility that the bobbin may be deformed, or the deflection coil may have an inaccurate shape due to the deformation of the bobbin.

Further, when the multi-core parallel conductor 15 cannot be wound with a too large tension due to the structure of the winding machine and the strength of the insulating layer 4 of the conductor wire 8, etc., the multi-core parallel conductor 15 may be a curled type corner or the like. However, there is a possibility that the coil may not be bent accurately and a coil having an accurate shape may not be wound.

Furthermore, when winding a thick wire, and inserting a predetermined number of conductor wires in a predetermined width, the thicker the wire, the more the loss due to the proximity effect increases. On the other hand, due to the skin effect, the thicker the line, the more the AC loss increases,
There was a possibility that it could not be used for high frequencies.

The present invention has been made to solve the above problems, and an object thereof is to use a multi-core parallel conductor wire as a coil conductor wire of a deflection coil so that the wires may be displaced.
(EN) Provided are a deflection coil which does not change the order of wires, does not wear a nozzle, deforms a bobbin or peels off an insulating layer, and is easy to wind and has good dimensional accuracy. It is in.

[0013]

In order to achieve the above object, the present invention is configured as follows. That is, in the method for manufacturing a deflection coil according to the present invention, two or more multi-core parallel conductors are superposed on each other, and are fed out from one nozzle to be laminated and wound in a saddle-shaped coil-shaped coil winding groove. , A saddle-shaped coil is formed. The deflection coil according to the first aspect of the present invention is characterized in that two or more multi-core parallel conductors are stacked and laminated to form a saddle-shaped coil. Further, in the deflection coil according to the second aspect of the invention, two or more multi-core parallel conductor wires are wound in a laminated manner to form a saddle type coil,
The multi-conductor parallel conductors are characterized by being provided with an identification mark for identifying the multi-conductor parallel conductors. Further, the deflection coil according to the third invention is 3
A saddle-shaped coil is formed by winding more than two multi-conductor parallel conductors in layers, and among these three or more multi-conductor parallel conductors, the multi-conductor parallel conductor sandwiched between the bottom layer and the top layer is the highest. It is characterized in that the dielectric strength is set to be lower than that of the multi-conductor parallel conductor wires of the lower layer and the uppermost layer.

[0014]

In the saddle-shaped deflection coil, two or more multi-core parallel conductors are superposed in the winding coil of the winding coil of the saddle-shaped deflection coil, while being wound from one nozzle while being laminated and wound. A deflection coil is produced. Further, if necessary, each multi-core parallel conductor is provided with an identification mark for identifying the other multi-conductor parallel conductors.

Further, when a deflection coil is formed by using three or more multi-core parallel conductors, the multi-core parallel conductors sandwiched between the lowermost layer and the uppermost layer of the multi-conductor parallel conductors have the bottom layer and the top layer. It is also possible to use a wire having a lower dielectric strength voltage than the multicore parallel conductor wire.

[0016]

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 is a perspective explanatory view of a multicore parallel conductor wire of a saddle type deflection coil according to this embodiment. The feature of this embodiment is that when two or more (three in this embodiment) multi-core parallel conductors made of thin conductor wires are stacked,
This is to form a saddle-shaped coil by feeding it out from individual nozzles and winding it in layers in a saddle-shaped coil-shaped coil winding groove.

In FIG. 1, the multicore parallel conductors 15A, 15
One of B and 15C, one conductor wire 8 covered with the insulating layer 4
12 are arranged in parallel with each other and adhered by using the adhesive 6. In this embodiment, one thick multi-core parallel conductor of the proposed example is divided into three thin thin parallel conductors. The conductor wire also uses a single thin conductor wire, and the conductor wires are spaced from each other in comparison with the proposed example. It is getting wider. Further, in order to distinguish the three multi-core parallel conductors 15A, 15B, 15C from each other, an identification mark is given to each of the multi-core parallel conductors (in this embodiment, each is classified into red, black and green). ing. As a method for distinguishing between the colors, a method in which the adhesive 6 is colored is adopted. For example, multi-core parallel conductor 15A is red, 15B is black, 15
C is colored green.

FIG. 2 shows an explanatory view of a winding device for winding and forming the deflection coil of this embodiment. This winding device includes three bobbins 25A, 25B and 25C (25B and 25C are not shown) on which multi-core parallel conductors 15A, 15B and 15C are respectively wound, a bobbin rotating mechanism 12, a bobbin holding member 31 and a tension applying means. It has 16A, 16B and 16C (16B and 16C are not shown). The above-mentioned three multi-core parallel conductors 15
A, 15B and 15C are respectively fed from the bobbins 25A, 25B and 25C, and tension is adjusted individually by the tension applying means 16A, 16B and 16C, and one nozzle shaft 27 of the nozzle shaft 27 is superposed. It is guided to the nozzle groove. The nozzle shaft 27 is supported by the nozzle support base 26, and the nozzle support base 26 is provided with a nozzle rotation mechanism 28.
This nozzle rotating mechanism 28 allows the nozzle shaft 27 to rotate freely in forward and backward desired directions. The nozzle support base 26 is attached to a nozzle support 35 so as to be movable in the vertical Y direction. The nozzle support 35 is attached to a nozzle bed 23 fixed on the apparatus base 1 by a driving mechanism such as a screw.
It is erected vertically (horizontally and horizontally).

A nozzle (not shown) is attached to the lower end side of the nozzle shaft 27, and the multi-core parallel conductor wire is attached.
15A, 15B, and 15C are fed out from the nozzle in a state of being overlapped with each other, and are inserted into the coil winding groove of the saddle-shaped winding die 43. The unwinding type 43 is placed on the support base 41, and is supported by the die side column 37 via the arm 40. A first mold rotating mechanism 38 is provided on the upper end side of the mold side support 37.

Further, a frame type holding portion is provided on the support base 41 of the winding type 43.
42 is provided, and the frame-shaped holding portion 42 is movable in the Z direction (direction orthogonal to the paper surface of FIG. 2B). The frame die holding portion 42 is provided with a second die rotating mechanism 44, and the unwinding die 43 is rotatable about the X axis by the rotating operation of the first die rotating mechanism 38. Also,
The second mold rotating mechanism 44 is driven to rotate about the Z axis.

Further, the rotation of the bobbin rotating mechanism 12 and the nozzle rotating mechanism 28 are interlocked so as to perform the same rotation in a cycle, and the bobbins 25A, 25B, 25 are rotated by the rotation of the nozzle.
The multi-core parallel conductors 15A, 15B, 15C fed out from C are designed so as not to be twisted.

Each of the above rotary drive mechanisms is controlled by a controller (not shown) so that the multi-core parallel conductor wire is smoothly wound around the coil winding groove of the winding type to form the deflection coil. Is becoming

Next, the operation of manufacturing the saddle type deflection coil of this embodiment will be described. First, as shown in FIG. 2, the multi-core parallel conductors 15A, 15B, 15C respectively wound on the bobbins 25A, 25B, 25C are superposed while the tensions are individually adjusted by the tension applying means 16A, 16B, 16C. In this state, it is inserted into the nozzle groove (not shown) of one nozzle shaft 27. The multi-core parallel conductors 15A, 15B, 15C in the superposed state are fed out from the nozzle and controlled by a controller (not shown) to form the multi-core parallel conductors 15.
A, 15B, and 15C are inserted into a coil winding groove of a saddle-shaped bobbin or a winding die of a die and wound in layers. As a result, a saddle-shaped coil is formed. After the coil is formed, the multi-core parallel conductors 15A, 15B and 15C are subjected to terminal treatment and connected in parallel. When the above multi-core parallel conductors 15A, 15B and 15C are wound around the bobbin 2 in layers to form a coil, the multi-core parallel conductors 15A, 15B and 15C are energized and heated to be fused together. Alternatively, a saddle type deflection coil as shown in FIG. 3 is formed by injecting a casting resin into the laminated coil and curing and integrating the resin. In addition, multi-core parallel conductor 15A,
When forming a coil by winding 15B and 15C in a winding die in a laminated manner, after forming the coil, the laminated coils are fused and integrated, or they are cured and integrated with a casting resin and then integrated The coil is released from the mold to form a saddle-shaped deflection coil as shown in FIG.

According to the present embodiment, since the saddle type deflection coil is formed by winding the multi-core parallel conductors in a layered manner, the coil conductors in the multi-core parallel conductors are not displaced and the order of the conductors is not changed. , 1 multi-conductor parallel conductor using thin conductor wire
Since each of the three multiconductor parallel conductors is laminated and wound with a weak tension, the three and the three parallel conductors are laminated and wound while the tension of each of the three wires is adjusted individually. Even when wound with a weak tension, the wire follows the curved surface or corner of the bobbin or the die, and the deflection coil having an accurate size and shape can be wound in a laminated manner. Therefore, since a large tension is not required, there is no fear of deformation of the bobbin or wear of the nozzle, and since stress is not applied to the insulating layer 4, there is no mechanical deterioration such as peeling of the insulating layer 4. As a result, the saddle type deflection coil thus manufactured enables precise control of the deflection magnetic field.

Furthermore, since the three multi-core parallel conductors are distinguished by color, it is easy to visually control the order of the wires and the twist of the wires.

Furthermore, since the bobbin is not deformed and the nozzle is not worn, maintenance costs can be reduced.

Furthermore, three multicore parallel conductors 15A, 15
Since B and 15C are laminated and wound, and the multi-core parallel conductors are terminated and connected in parallel, the laminated coil 33 of the three multi-core parallel conductors has the same potential, but is shown in FIG. As described above, the coil layer 33 does not have the same potential as the coil layer 32 previously laminated and wound and the coil layer 34 subsequently laminated and wound,
Multi-core parallel conductor that contacts the previous coil layer 32 and the next coil layer 34
For 15A and 15C, wires with high withstand voltage are required. But,
Since the multi-core parallel conductor 15B of the intermediate layer has the same potential as 15A and 15C and does not directly contact the front and rear coil layers 32 and 34, the withstand voltage can be set low. Therefore, it is possible to reduce the cost of the multi-core parallel conductor wire having a low withstand voltage of the intermediate layer, so that the cost of the deflection coil itself can be reduced.

Furthermore, since the conductor wire 8 is made thin and the multi-core parallel conductor 15 in which single wires are arranged in parallel is laminated and wound, this multi-core parallel conductor is easily adapted to the shape of a roll type. , It is easier to wind, and the proximity effect is improved,
It is possible to prevent an increase in AC loss. Furthermore,
By connecting three multi-core parallel conductors in parallel by terminal processing, the three multi-core parallel conductors do not have the same potential and the distributed capacitance does not increase, so the electrical characteristics can be significantly improved. it can.

The present invention is not limited to the above-mentioned embodiment, and various embodiments can be adopted. For example, in the above-mentioned embodiment, the entire adhesive layer of the conductor wires 8 of the multiconductor parallel conductors 15A, 15B, and 15C is colored as a means for identifying the multiconductor parallel conductors.
A, 15B, 15C have horizontal lines (A, B, C) of different colors as shown in FIG. 5 (a) or vertical lines (D, E, F) as shown in FIG. 5 (b). Alternatively, other means may be used as long as it can be easily identified visually. Further, if the colors are classified according to the width direction, the order of twist or lines in the width direction can be determined, and the lines can be divided in the width direction and connected in series.

Further, in the above embodiment, the three multi-core parallel conductors are laminated and wound and then terminated (for example, short-circuited) to be connected in parallel, but they may be connected in series by termination. In this case, in comparison with the case of forming a deflection coil by winding one multi-core parallel conductor wire in a laminated manner, when using a multi-core parallel conductor wire that is superposed on three coils, the coil is wound 1/3 times. Can be formed, and 1 / n when superposed on n
Since the coil can be formed by the number of windings, the winding work can be completed in an extremely short time. However, in this case, the multi-layer parallel conductor 15B of the middle layer is the multi-layer parallel conductor 15 of the uppermost layer.
A, the same dielectric breakdown voltage as the lowermost multicore parallel conductor 15C is required.

Further, in the above-mentioned embodiment, the deflection coil is formed by stacking and winding three multi-core parallel conductors one on top of the other, but the number of multi-core parallel conductors may be two or more.

Furthermore, in the above embodiment, the multi-core parallel conductor wire is used.
Although a single wire is used as the conductor wire 8 of 15, a litz wire may be used as the conductor wire 8. However, in the case of a single wire, the cost is low, which is advantageous in terms of cost.

[0033]

According to the present invention, since a saddle-type deflection coil is formed by laminating multi-conductor parallel conductors in a laminated manner, the coil conductors in the multi-conductor parallel conductors are not displaced and the order of the conductors is not changed. Since two or more multi-core parallel conductors are laminated and wound in a state of being superposed, a thin multi-core parallel conductor obtained by dividing one thick multi-core parallel conductor of the proposed example into a plurality of In addition, since a wire that is extremely thin compared to the proposed example can be used, the multicore parallel conductor wire can be easily wound even with a weak tension. Moreover, even when wound with a weak tension, the wire is wound around the curved surface or corner of the bobbin or the mold, and the deflection coil having an accurate size can be wound in a laminated manner. Therefore, since a large tension is not required, there is no concern about deformation of the bobbin, abrasion of the nozzle, peeling of the insulating layer, etc., and a deflection coil having an accurate size and shape can be manufactured. The saddle-type deflection coil thus manufactured enables precise control of the deflection magnetic field.

In addition, in the structure in which the superposed multiconductor parallel conductors are distinguished by different colors, it is easy to visually control the order of the lines and the twist of the lines.

Further, when three or more multi-core parallel conductors are wound in layers to form a deflection coil, the multi-core parallel conductors sandwiched between the lowermost layer and the uppermost multi-conductor parallel conductors are combined with the lowermost layer. In the structure in which the withstand voltage is set to be lower than that of the upper multi-conductor parallel conductor wire, the cost of the middle conductor multi-conductor parallel conductor wire with the lower withstand voltage can be reduced, so that the cost of the deflection coil itself can be reduced. ..

Furthermore, since a thin multi-core parallel conductor obtained by dividing one thick multi-core parallel conductor of the proposed example into a plurality of wires can be used, a thinner wire can be used as compared with the proposed example. Since the proximity effect becomes good, and after the multi-core parallel conductors are laminated and wound and the multi-core parallel conductors are terminated and connected in parallel, there is no potential difference between the overlapped multi-core parallel conductors. In addition, the distribution capacity does not increase, and the electrical characteristics can be significantly improved.

[Brief description of drawings]

FIG. 1 is a perspective explanatory view of a multicore parallel conductor wire for manufacturing a deflection coil according to the present embodiment.

FIG. 2 is an explanatory diagram of a winding device for winding and forming the deflection coil of the present embodiment.

FIG. 3 is an explanatory view showing a state in which a multi-core parallel conductor wire is wound in layers around a bobbin for a saddle type deflection coil according to the present embodiment.

FIG. 4 is an explanatory diagram of a saddle-shaped deflection coil-shaped coil that is released from a winding die.

FIG. 5 is an explanatory diagram of another identification means of the multi-core parallel conductor wire.

FIG. 6 is an explanatory diagram showing a laminated state of three superposed parallel conductors.

FIG. 7 is an explanatory diagram of a proposed example in which one multi-core parallel conductor is laminated to manufacture a deflection coil.

FIG. 8 is an explanatory view of various forms of a multi-core parallel conductor wire.

FIG. 9 is an explanatory diagram of a coil winding state of a conventional deflection coil.

FIG. 10 is an explanatory diagram of an example of a bobbin of a conventional deflection coil.

[Explanation of symbols]

 2 bobbin 4 insulating layer 5 coil winding groove 8 conductor wire 12 bobbin rotating mechanism 15 (15A, 15B, 15C) multi-core parallel conductor 27 nozzle shaft 28 nozzle rotating mechanism 43 reel form

Claims (4)

[Claims] 1. A saddle-shaped coil is formed by winding two or more multi-core parallel conductive wires in a state of being superposed from one nozzle and winding them in layers in a saddle-shaped coil winding groove. A method for manufacturing a deflection coil to be formed. 2. A deflection coil, which is a saddle-shaped coil formed by stacking two or more multicore parallel conductors on top of each other. 3. A saddle-shaped coil is formed by laminating two or more multi-core parallel conductors in a layered manner, and each multi-core parallel conductor is identified for identifying the other multi-core parallel conductors. Deflection coil with indication. 4. A saddle-shaped coil is formed by winding three or more multi-core parallel conductors in a layered manner and sandwiched between the bottom layer and the top layer of the three or more multi-core parallel conductors. The multi-core parallel conductor is a deflection coil whose dielectric strength is set lower than that of the bottom and top multi-conductor parallel conductors.