JP3269116B2 - Deflection coil and method of manufacturing the same - Google Patents

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 or a display device, and a method of manufacturing the same.

[0002]

2. Description of the Related Art In recent years, with the advent of high-definition television receivers and the emergence of high-definition display devices, the standards for color misregistration, that is, convergence, of the screen of a cathode ray tube of these devices have become increasingly severe. Accordingly, more and more 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. In the coil winding groove 5, for example, a winding 11 is laminated and wound as shown in FIG. 9 to form a deflection coil. As the winding wire 11, a conductive wire (including a litz wire) on which an insulating layer 4 is applied and an outer periphery of which is coated with an adhesive is used.

When the winding wire 11 is wound in the coil winding groove 5, the winding wire 11 is laminated and wound by an automatic winding machine one by one or several windings as individual single wires that are not bundled. A coil is formed. Next, a current is applied to the laminated and wound coils, the adhesive applied to the outside of the insulating layer 4 is heated and melted, and the windings are bonded to each other to form a deflection coil.

[0005]

However, the winding 11
Due to a change in the direction of tension when winding the wire, as shown in FIG.
There is a problem that the order of 11 is changed and it is not possible to wind as specified by the design.In addition, the deviation of the winding 11 of each deflection coil mass-produced also varies for each product, and the deflection magnetic field is reduced. There was a problem that control could not be performed accurately. In addition, there is also a problem that the yield is lowered because the products to be mass-produced vary, and there is a problem that this conventional winding method cannot cope with cost. Even in this conventional method, if the coil winding groove width is made smaller and smaller, the deviation and offset of the winding 11 can be reduced to approach the design instruction, but in this case, the ratio L / R of the inductance L and the resistance R can be approached. And the coil performance decreases.

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

The multi-core parallel conductor 15 is shown in FIG.
As shown in FIG. 2, conductor wires 8 such as copper or aluminum covered with an insulating layer 4 are arranged in parallel using an adhesive 6 and adhered, or as shown in FIG. A plurality of conductor wires 8 covered with an insulating layer 4 on one side of an insulating sheet 7 are arranged in parallel and bonded using an adhesive 6, or as shown in FIG. A plurality of conductor wires 8 each having an adhesive layer 9 formed thereon are arranged in parallel and bonded, or a plurality of conductive wires 8 each having a thermoplastic adhesive layer 20 formed outside the insulating layer 4 as shown in FIG. The conductor wires 8 are arranged in parallel and adhered.

The conductor wires 8 of the multi-core parallel conductors 15 are fixed in order within each multi-core parallel conductor 15, so that the conductor wires 8 are displaced within the respective multi-core parallel conductors 15, or Since the order of the wires does not change, the multi-core parallel conductor 15 is fed out from a nozzle of an automatic winding machine (not shown) using these multi-core parallel conductors 15, and for example, as shown in FIG. By inserting the multi-core parallel conductive wire 15 into the coil winding groove 5 having the above-described structure and laminating and winding the same, it is possible to manufacture a deflection coil capable of eliminating a large displacement or the like of the conductor wire 8. The characteristics of the deflection coil formed by using the multi-core parallel conducting wire 15 can be greatly improved as compared with the conventional case.

However, when a deflection coil is manufactured using the multi-core parallel conductor 15 of the proposed example, the coil is wound using one multi-core parallel conductor, so that a large number of coils are required until the coil winding is completed. Since it has to be wound several times, it takes a long working time and the working efficiency of the winding work is poor. Also, when making 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 15 formed by the conductor wire 8 having a large diameter is wound through a coil winding groove 5 through a nozzle of an automatic winding machine.
When winding inside the stack, the wire is too thick to fit into the shape of the wrapping type, so it is not possible to wind along the shape of the wrapping type unless it is wound by adding a large tension, and it is very winding Hateful. Moreover, when wound with a large tension, stress is applied to the multi-core parallel conductor 15 itself and the nozzle or bobbin of the winding machine, and the insulating layer 4 may be peeled off, or the wire may be cut off in some cases. And deformation of the bobbin, etc., and a deflection coil having an incorrect shape may be formed with the deformation of the bobbin.

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

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

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and an object of the present invention is to use a multi-core parallel conductor as a coil conductor of a deflecting coil so that the wire may be displaced,
To provide a deflecting coil which does not change the order of the wires, does not wear the nozzle, deforms the bobbin or peels off the insulating layer, is easy to wind, and has good dimensional accuracy, and a method of manufacturing the same. It is in.

[0013]

The present invention is configured as follows to achieve the above object. That is, according to the method of manufacturing a deflection coil of the present invention, two or more multi-core parallel conductors are fed out from individually wound bobbins , respectively,
After adjusting the tension through the
Into the nozzle shaft, and the lower end of the nozzle shaft
And feeding from one nozzle that is attached to the turning laminated wound in the coil winding grooves of the winding essence type in which the saddle-shaped, forms a coil of saddle shape, the superposition state
During the operation of stacking and winding the multi-core parallel conductive wire in the winding type
The bobbin is rotated by a bobbin rotation mechanism,
The nozzle shaft is rotated by the nozzle rotation mechanism.
The rotation of the nozzle shaft by the nozzle rotation mechanism
The same rotation as the bobbin rotation by the
Linked with each other to perform rolling, and the rolled mold is driven by a mold rotating mechanism.
It is characterized in that it rotates . Also,
The deflection coil according to the first invention is the deflection coil according to the present invention.
It is characterized in that two or more multi-core parallel conductors are overlapped and laminated to form a saddle-shaped coil using a manufacturing method of an il . Further, the deflection coil according to the second invention has the configuration of the deflection coil according to the first invention.
In this device, two or more multi-core parallel conductors are laminated and wound to form a saddle-shaped coil, and each multi-core parallel conductor has an identification mark for identifying each other. It is characterized by having been given. Further, in the deflection coil according to the third invention, three or more multi-core parallel conductors are laminated and wound to form a saddle-shaped coil, and the lowermost layer of the three or more multi-core parallel conductors is formed. And the multi-core parallel conductor sandwiched between the uppermost layer and the lowermost layer has a lower dielectric strength than the multi-core parallel conductors of the lowermost layer and the uppermost layer.

[0014]

In a state where two or more multi-core parallel conductors are superimposed in a coil winding groove of a winding type of a saddle-shaped deflection coil, the laminated winding is carried out while being fed out from one nozzle. A deflection coil is manufactured. If necessary, the multi-core parallel conductors are provided with an identification for identifying the multi-core parallel conductors.

Further, when forming a deflection coil using three or more multi-core parallel conductors, the multi-core parallel conductor sandwiched between the lowermost layer and the uppermost layer of the multi-core parallel conductor has the lowermost layer and the uppermost layer. A wire having a lower withstand voltage than the multi-core parallel conductive wire may be used.

[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 are given to the same names as those in the proposal example, and the detailed description thereof will be omitted. FIG. 1 is a perspective explanatory view of a multi-core parallel conductor of a saddle type deflection coil according to the present embodiment. This embodiment is characterized in that two or more (three in this embodiment) multi-core parallel conductors composed of thin conductor wires are superposed on each other in a state where they are superposed.
This is to form a saddle-shaped coil by feeding out from the individual nozzles and laminating and winding it in a saddle-shaped wound coil winding groove.

In FIG. 1, the multi-core parallel conductors 15A, 15A
One of B and 15C, one of which is a conductor wire 8 covered with an insulating layer 4
Are arranged in parallel with each other and are adhered using an adhesive 6. In this embodiment, one thick multi-core parallel conductor of the proposed example is divided into three thin multi-core parallel conductors, and a single thin conductor wire is used as the conductor wire. It is wide. In order to distinguish the three multi-core parallel conductors 15A, 15B, and 15C from each other, each multi-core parallel conductor is identified (in this embodiment, each of red, black, and green is colored). ing. As the color separation, a method in which the adhesive 6 is colored is employed. For example, multi-core parallel conductor 15A is red, 15B is black, 15
C is colored green.

FIG. 2 is an explanatory diagram of a winding device for winding and forming the deflection coil of the present embodiment. This winding device comprises three bobbins 25A, 25B, 25C (25B, 25C not shown) on which multi-core parallel conductors 15A, 15B, 15C are respectively wound, a bobbin rotating mechanism 12, a bobbin holding material 31, and a tension applying means. 16A, 16B and 16C (16B and 16C are not shown). The three multi-core parallel conducting wires 15
A, 15B, and 15C are fed out from bobbins 25A, 25B, and 25C, respectively, and tension is individually adjusted one by one by tension applying means 16A, 16B, and 16C, and one nozzle shaft 27 is superposed. It is led to the nozzle groove. The nozzle shaft 27 is supported by a nozzle support 26, and the nozzle support 26 is provided with a nozzle rotating mechanism 28,
The nozzle rotation mechanism 28 allows the nozzle shaft 27 to freely rotate in the desired forward and reverse directions. The nozzle support 26 is attached to the nozzle support 35 so as to be movable in the vertical Y direction. The nozzle support 35 is attached to the nozzle bed 23 fixed on the apparatus base 1 by a driving mechanism such as a screw.
It is erected so that it can move in the direction (horizontal horizontal direction).

A nozzle (not shown) is attached to a lower end side of the nozzle shaft 27, and the multi-core parallel conductive wire is provided.
The nozzles 15A, 15B, and 15C are fed out of the nozzle in a superimposed state, and are inserted into the coil winding groove of the saddle-shaped winding die 43. The rolled die 43 is placed on a support table 41 and is supported by a die-side support 37 via an arm 40. A first mold rotating mechanism 38 is provided on the upper end side of the mold-side support 37.

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

The rotation of the bobbin rotation mechanism 12 and the nozzle rotation mechanism 28 are linked so as to perform the same rotation at regular intervals, and the bobbin 25A, 25B, 25B is rotated by the rotation of the nozzle.
The multi-core parallel conductors 15A, 15B, and 15C drawn from C are twisted so as not to be twisted.

Each of the above-mentioned rotary drive mechanisms is controlled by a control device (not shown) so that the multi-core parallel conductive wire is smoothly stacked and wound around the wound coil winding groove to form a deflection coil. Has become.

Next, the operation of the manufacturing operation of the saddle type deflection coil of this embodiment will be described. First, as shown in FIG. 2, the multi-core parallel conductors 15A, 15B, and 15C wound on the bobbins 25A, 25B, and 25C, respectively, are superposed while being individually tension-controlled by the tension applying means 16A, 16B, and 16C. In this state, it is inserted into a nozzle groove (not shown) of one nozzle shaft 27. The superposed multi-core parallel conductors 15A, 15B, 15C are drawn out of the nozzle and controlled by a control device (not shown).
A, 15B, and 15C are inserted into a coil winding groove of a saddle-shaped bobbin or a coiled die of a metal mold, and are laminated and wound. Thereby, a saddle-shaped coil is formed. After the coil is formed, the multi-core parallel conductors 15A, 15B, and 15C are terminated and connected in parallel. When the multi-core parallel conductors 15A, 15B and 15C are wound around the bobbin 2 to form a coil, after the coil is formed, the multi-core parallel conductors 15A, 15B and 15C are electrically heated and fused. Alternatively, a casting resin is injected into the laminated coil and cured and integrated to form a saddle type deflection coil as shown in FIG. Also, multi-core parallel conductor 15A,
When a coil is formed by laminating and winding 15B and 15C around a winding die, after forming the coil, the laminated coil is fused and integrated, or after being cured and integrated with a casting resin, the integrated lamination is performed. The coil is released from the mold to form a saddle-shaped deflection coil as shown in FIG.

According to this embodiment, since the saddle-type deflection coil is formed by laminating and winding the multi-core parallel conductors, the coil conductors in the multi-core parallel conductors are not shifted or the order of the conductors is not changed. In addition, a multi-core parallel conductor using a thin conductor
Since the three windings are laminated and wound in a state where three are superimposed while adjusting the tension individually, the three multi-core parallel conductors can be laminated and wound with a weak tension. Even if it is wound with a weak tension, the wire follows the curved surface or the corner of the bobbin or the mold, and the deflection coil having the correct size and shape can be laminated and wound. Therefore, since a large tension is not required, there is no need to worry about deformation of the bobbin or wear of the nozzle, and since no stress is applied to the insulating layer 4, there is no mechanical deterioration such as peeling of the insulating layer 4. Thereby, the manufactured saddle type deflection coil can precisely control the deflection magnetic field.

Further, since the three multi-core parallel conductors are distinguished by different colors, visual management such as the order of the lines and the twist of the lines becomes easy.

Furthermore, since the deformation of the bobbin and the wear of the nozzle are eliminated, the maintenance cost can be reduced.

Furthermore, three multi-core parallel conductors 15A, 15
After the layers B and 15C are stacked and wound, these multi-core parallel conductors are terminated and connected in parallel, so that the laminated coils 33 of the three multi-core parallel conductors have the same potential. As a result, the coil layer 33 does not have the same potential as the previously wound coil layer 32 and the next stacked coil layer 34,
Multi-core parallel conductor in contact with the previous coil layer 32 or the next coil layer 34
15A and 15C require wires having a high withstand voltage. But,
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, so that the withstand voltage can be set low. Therefore, the cost of the multi-core parallel conductive wire having a low withstand voltage of the intermediate layer can be reduced, and the cost of the deflection coil itself can be reduced.

Furthermore, since the conductor wire 8 is made thinner and the multifilamentary parallel conductors 15 in which the single wires are arranged in parallel are laminated and wound, the multifilamentary parallel conductors are easily adapted to the shape of the winding type. , Winding becomes easier, and the proximity effect is improved,
An increase in AC loss can be prevented. Furthermore,
By connecting the three multi-core parallel conductors in parallel by terminal processing, the three multi-core parallel conductors have the same potential and the distribution capacity does not increase, so that the electrical characteristics can be greatly improved. it can.

The present invention is not limited to the above-described embodiment, but can adopt various embodiments. For example, in the above embodiment, the entire adhesive layer of the conductor wire 8 of each of the multi-core parallel conductors 15A, 15B, and 15C is colored as an identification display means of the multi-core parallel conductor.
For example, horizontal lines (A, B, C) of different colors as shown in FIG. 5A or vertical lines (D, E, F) as shown in FIG. Alternatively, another means may be used as long as it can be easily identified visually. Also, if the colors are separated in the width direction, the order of the twist or the lines in the width direction can be determined, and the lines can be divided in the width direction and connected in series.

In the above embodiment, three multi-core parallel conductors are laminated and wound and then terminated (for example, short-circuited) and connected in parallel. However, they may be connected in series by terminal processing. In this case, when a multi-core parallel conductor is used in which three multi-core parallel conductors are superimposed, the coil is wound with one-third the number of turns compared to when a single multi-core parallel conductor is laminated and wound to form a deflection coil. 1 / n when they are superimposed on n lines.
Since the coil can be formed with the number of turns, the winding operation can be completed in a very short time. However, in this case, the multi-core parallel conductor 15B of the intermediate layer is replaced by the multi-core parallel conductor 15B of the uppermost layer.
A: The same dielectric breakdown voltage as that of the lowermost multi-core parallel conductor 15C is required.

Further, in the above embodiment, the deflection coil is formed by laminating and winding three multi-core parallel conductors in a stacked manner. However, any number of multi-core parallel conductors may be used.

Further, in the above embodiment, the multi-core parallel conductor is used.
Although a single wire is used for the 15 conductor wires 8, a litz wire may be used for the conductor wire 8. However, in the case of a single wire, since the cost is low, it is advantageous in terms of cost.

[0033]

According to the present invention, since the saddle-type deflecting coil is formed by laminating and winding multi-core parallel conductors, the coil conductors in the multi-core 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 superposed state, a thin multi-core parallel conductor of the proposed example is divided into a plurality of thin multi-core parallel conductors. And a very thin wire can be used as compared with the proposed example, so that the multi-core parallel conductive wire can be easily wound with a weak tension. In addition, even when the wire is wound with a weak tension, the wire follows the curved surface or the corner of the bobbin or the mold, and a deflection coil having an accurate dimension can be stacked and wound. Therefore, since a large tension is not required, there is no need to worry about deformation of the bobbin, abrasion of the nozzle, peeling of the insulating layer, and the like, and it is possible to manufacture a deflection coil having accurate dimensions and shape. The saddle type deflection coil thus manufactured allows precise control of the deflection magnetic field.

Further, in a configuration in which the superposed multi-core parallel conductors are identified by different colors, visual control of the order of the lines, twisting of the lines, and the like becomes easy.

Further, when forming a deflection coil by laminating and winding three or more multi-core parallel conductors, the multi-core parallel conductor sandwiched between the lowermost layer and the uppermost multi-core parallel conductor is connected to the lowermost layer and the lowermost layer. In a configuration in which the withstand voltage is set lower than that of the upper-layer multi-core parallel conductor, the cost of the multi-core parallel conductor having a lower withstand voltage of the intermediate layer can be reduced, so that the cost of the deflection coil itself can be reduced. .

Further, since a thin multi-core parallel conductor obtained by dividing one thick multi-core parallel conductor of the proposed example into a plurality of multi-core parallel conductors can be used, a thinner wire can be used as compared with the proposed example. And the proximity effect becomes good, and after stacking and winding this multi-core parallel conductor, the multi-core parallel conductor is terminated and connected in parallel, so that there is no potential difference between the superposed multi-core parallel conductors. In addition, there is no increase in the distributed capacitance, and the electrical characteristics can be greatly improved.

[Brief description of the drawings]

FIG. 1 is a perspective explanatory view of a multi-core parallel conducting wire for producing a deflection coil according to the present embodiment.

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

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

FIG. 4 is an explanatory view of a coil having a saddle type deflection coil shape released from a winding die.

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

FIG. 6 is an explanatory diagram showing a stacked state of three superposed parallel multi-conductor wires.

FIG. 7 is an explanatory diagram of a proposal example of manufacturing a deflection coil by laminating one multi-core parallel conductive wire.

FIG. 8 is an explanatory view of various forms of a multi-core parallel conducting 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 insulation layer 5 coil winding groove 8 conductor wire 12 bobbin rotation mechanism 15 (15A, 15B, 15C) multi-core parallel conductor 27 nozzle shaft 28 nozzle rotation mechanism 43 reel type

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) H01J 9/236 H01J 29/76

Claims (4)

(57) [Claims] 1. Two or more multi-core parallel conductors are separately provided.
From the bobbin wound on the
After adjusting the through tension, place the nozzle
And installed at the lower end of the nozzle shaft
Turn one laminated wound in the coil winding grooves of the winding essence type in which the saddle-type shape unwinding from a nozzle are, forms a coil of saddle shape, a multi-wire ribbon in a state in which the overlapped combined
During the operation of laminating and winding into the above-mentioned winding type, the bobbin is
Rotated by the bin rotation mechanism, the nozzle shaft
The nozzle is rotated by the nozzle rotation mechanism.
The rotation of the nozzle shaft and the bobbin rotation mechanism
Synchronized with the rotation of the bin so that the same rotation is performed
A method for manufacturing a deflection coil , wherein the winding die is rotated by a die rotation mechanism . 2. A method for manufacturing a deflection coil according to claim 1.
Was used, two or more multi-fiber laminated superposed parallel wire deflection coils with coil saddle shape. 3. A saddle-shaped coil is formed by laminating and winding two or more multi-core parallel conductors, and each multi-core parallel conductor has an identification for identifying each multi-core parallel conductor. 3. The deflection coil according to claim 2, wherein an indication is given. 4. A saddle-shaped coil formed by stacking and winding three or more multi-core parallel conductors, and sandwiched between the lowermost layer and the uppermost layer of the three or more multi-core parallel conductors. A multi-core parallel conductor is a deflection coil whose dielectric strength is set lower than that of the lowermost and uppermost multi-core parallel conductors.