JPH06290976A - Gear choke coil - Google Patents

Abstract

(57) [Summary] [Purpose] The objective is to make gear choke coils efficiently and fully automatically. [Structure] The starting end pin terminal 20 is temporarily attached to the peripheral surface of the brim of the split type cylindrical winding frame 16 with gears. The winding frame 16 is attached to the central magnetic leg 2 of the date-shaped core 17. The assembled product of the core 17 and the winding frame 16 is fixed to the terminal block 18 with pin terminals. On the terminal block, only the terminal pin terminal 21 is vertically provided so as to integrally form the insertion hole 22 for the terminal pin terminal for the starting end. The drive gear of the winding machine is engaged with the gear 4 of the flange of the winding frame, and the core, the winding, and the terminal block assembly are attached to the winding machine. The start end pin terminal 20 is twisted from the wire nozzle, then the winding is rotated to wind the winding, and the end is twisted to the pin terminal 21. After removing the winding up from the winding machine, the starting end pin terminal 20 is pulled out from the winding frame 16 and inserted into the insertion hole 22 of the terminal block 18 with the pin terminal. A coil is completed by soldering the barbed portion.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pin terminal in which a split type cylindrical winding frame with a gear is mounted on a rod-shaped magnetic leg of a frame type closed magnetic circuit core, and the winding is performed by rotating the split type cylindrical winding frame. The present invention relates to a gear choke coil mounted on an attached terminal block (hereinafter referred to as a terminal block) to be a board insertion type.

[0002]

2. Description of the Related Art Choke coils having a closed magnetic circuit core with windings are used in large quantities for the prevention of electromagnetic noise. As a means for efficiently winding a winding on a closed magnetic circuit core, a rod-shaped magnetic leg of a closed magnetic circuit is provided, for example, one side of a square-shaped core or a central magnetic leg of a day-shaped core (hereinafter referred to as a core) and a split type cylindrical reel with a gear It is put to practical use by assembling (hereinafter referred to as reel) and winding the reel. It is called a gear choke coil because the drive gear is engaged with the gear of the winding frame to rotate the winding frame for winding. Since the shape of the core and the assembly with the winding frame cannot be installed in a stable manner, the board mounting type is used by combining with the terminal block with pin terminals.

After the winding up of the core and the winding frame assembly is assembled to the terminal block with pin terminals, the starting end and the terminating end of the winding can be connected to the pin terminals by twisting them, but the terminal ends should not be loosened. Since it is necessary to temporarily fix it to the reel and it is necessary to manually peel it off, conventionally, winding is done on the three-part assembly of the core, reel, and terminal block. A procedure has been adopted in which the end of the winding is directly wound on the pin terminal. Since the starting end of the winding must be rotated together with the bobbin, after winding the coil and removing the coil from the winding machine, manually winding the starting end of the winding to the pin terminals to finish the coil. It was

The twisting of the starting end will be described with reference to the drawings. FIG. 4 is a bottom view showing a state where the coil is removed from the conventional coil winding machine, and FIG. 5 is a longitudinal cross-sectional view of the Rollo line in FIG. In this coil, a split type cylindrical winding frame 3 with a gear 4 is attached to a central magnetic leg 2 of a date-shaped core 1, and the core 1 is fixed to a terminal block 5 with a pin terminal 6 which is slightly larger than the core 1 to form two cores. It is a common mode gear choke coil in which winding 7 and winding 8 are performed simultaneously. The windings 7 and 8 are each divided by a partitioning collar 9 in the winding.

There is a starting end receiving groove 11 for the winding 7 on one end flange 10 of the winding frame 3, and a starting end receiving groove 11 for the winding 8 on the central flange 12 having the gear 4. The winding 7 and the starting ends 13 and 14 of the winding 8 are housed in the starting end housing groove 11 in the vicinity of one round.

First, a starting end 13 (shown by a chain line in FIG. 5) is pulled out from the starting end housing groove 11 on the side opposite to the pin terminal 6 and extended, and the free end of the starting end 13 is further extended to the terminal block 5 and the terminal collar 1.
The pin terminal 6
Extend in parallel with. The starting end 13 is pulled out from the introduction notch 15 into the winding core of the end collar 10. The extended starting end 13 is entangled with a predetermined pin terminal 6 to cut off the excess. The start end 14 of the winding 8 is similarly processed.

[0007]

In the work of manually peeling the starting end from the storage groove, it is difficult to pull the starting end out of the storage groove, and it takes time together with the peeling itself. There is a problem that the shape and size of the balding vary depending on the height.

[0008]

In order to solve the conventional problems, a starting end pin terminal is temporarily attached to the peripheral surface of a flange of a cylindrical reel, and a core having a size capable of rotating the reel is used. After winding the winding end by twisting the start end of the winding to the pin terminal and twisting the end to the pin terminal of the terminal block, pull out the start end pin terminal from the cylindrical winding frame together with the twisting part. , The barbed portion is fixed by soldering after being inserted into a predetermined position of the terminal block.

That is, according to the present invention, a split type cylindrical winding frame with a gear is attached to a rod-shaped magnetic leg of a closed magnetic circuit core, fixed to a terminal block with pin terminals, and the winding frame is rotated to perform winding. In the gear choke coil with the terminal connected to the pin terminal,
The start end pin terminal is entwined on the peripheral surface of the collar of the split type cylindrical bobbin with gears to wind the winding, and the end is twisted to the pin terminal of the terminal block with pin terminal, and then the starting pin terminal Is removed from the split side cylindrical winding frame with a gear and is inserted into the pin terminal hole for a starting end of a terminal block with a pin terminal in which a pin terminal hole for a starting end is provided in advance.

[0010]

[Function] The temporarily inserted pin terminal works by holding the starter bark and rotating it integrally with the bobbin so that the winding process and the barking process become one continuous process. It is reattached and becomes a terminal for external connection.

[0011]

1 is a bottom view of an embodiment of a gear choke coil according to the present invention. This gear choke coil has 2
This is a common mode choke coil having individual windings 7 and 8. FIG. 2 shows an assembled product of the split type cylindrical reel 16 with a gear and the date-shaped core 17 used in the common mode choke coil of FIG. 1, and a terminal block with pin terminals (hereinafter referred to as a terminal block) 18. FIG. 3 is a vertical cross-sectional view of the three-piece assembly of the reel 16, the core 17, and the terminal block 18, taken along the line EE in FIG.

The bobbin 16 has the same outer dimensions as the conventional bobbin 5, and one end flange 10 and a central brim 12 are surrounded by a starting end storage step (hereinafter referred to as a step) 19 and are further introduced. A step portion 19 having a required distance in the circumferential direction along the inclined surface from the notch 15.
At the location of the starting end pin terminal (hereinafter referred to as the pin terminal) 20
Is temporarily inserted. The orientation of the pin terminal 20 is not in the radial direction but slightly inclined toward the introduction notch 15 side. In the figure, it is oriented so as to circumscribe the core. The inclination of the pin terminal 20 is to pull out the pin terminal 20 without applying tension to the starting ends 13 and 14 of the windings 7 and 8, and to reduce the protruding dimension in the radial direction.

The core 17 is a date-shaped core having a large through hole that allows the winding frame 16 assembled to the central magnetic leg 2 to rotate without the pin terminal 20 touching the core.

The terminal block with pin terminals 18 is in the shape of a letter that is slightly larger than the outer shape of the core 17, and has terminal pins 21 for termination provided integrally therewith, and an insertion hole 22 for the pin terminal 20 for start point. Has been formed. Winding is performed by mounting the tripartite assembly on the winding device.

In the reel 16, the pin terminals 20 are the pin terminals 21.
The gear 4 is meshed with the drive gear (not shown) while keeping the posture substantially parallel to the above. The free end of the wire is held by a holder outside the terminal block 18 and a wire nozzle (not shown) is attached to the bobbin 16.
The wire holder side of the wire is cut off at the base by advancing to the starting end pin terminal 20.

Rotate the bobbin 16 (in the case of FIG. 3, the central magnetic leg 2
(In the clockwise direction about the axis), the wire nozzle is introduced through the notch 15 into the winding core side to perform winding on one winding section, and the remaining partition after passing through the partitioning collar 9 in the winding. Winding on the
Stop the bobbin 16 in the posture shown in Fig.
Remove from the line nozzle. The starting ends 13 and 14 of the winding 7 and the winding 8 pass through the introduction notch 15 and the pin terminal 2
It has reached 0. The pin terminal 20 is pulled out from the bobbin 16 and pressed into the insertion hole 22 of the terminal block 18 as shown by the broken line in FIG.

FIG. 1 shows the coil thus completed, and the holes 23 in the storage step portions 19 of the end flange 10 and the central flange 12 are marks of the pin terminals 20.

[0018]

As is apparent from the above description, according to the present invention, a gear choke coil can be manufactured extremely efficiently by an automated device without manual work, and the shape and size of the entanglement are constant. The effect of improving the quality of the coil is obtained.

[Brief description of drawings]

FIG. 1 is a bottom view showing an embodiment of a gear choke coil of the present invention.

FIG. 2 is an exploded perspective view of a reel, a core assembly, and a terminal block used in the present invention as seen from the bottom side, FIG. 2 (a) is an exploded perspective view of the terminal block, and FIG. FIG. 3B) is an exploded perspective view in which a split type cylindrical reel with a gear is incorporated in a date-shaped core.

FIG. 3 is a vertical cross-sectional view taken along the line EE in FIG. 2 of an assembly product of the split type cylindrical reel with gears, the date core, and the terminal block with pin terminals.

FIG. 4 is a bottom view of the conventional gear choke coil removed from the winding machine.

5 is a vertical cross-sectional view taken along the line ROLL of FIG.

[Explanation of symbols]

 1, 17 Day-shaped core 2 Central magnetic leg 3, 16 Gear-type split cylindrical winding frame 4 Gear 5, 18 Pin terminal terminal block 6, 21 Pin terminal 7, 8 Winding 9 Winding partition collar 10 End collar 11 Starting End Storage Groove 12 Center Collar 13, 14 Starting End 15 Introduction Notch 19 Starting End Storage Step 20 Starting End Pin Terminal 22 Insertion Hole 23 Hole

Claims (1)

[Claims] 1. A bar-shaped magnetic leg of a closed magnetic circuit core is assembled with a split type cylindrical winding frame with a gear and is fixed to a terminal block with pin terminals, the winding frame is rotated to perform winding, and a winding start end and a winding end are pinned. In the gear choke coil that is connected to the terminal, the start end is twisted to the pin terminal for the start end that is temporarily inserted on the peripheral surface of the collar of the split type cylindrical reel with gear, and the winding is performed, and the end is the terminal block with pin terminal. After pulling it out to the pin terminal of, the starting end pin terminal is pulled out from the split type cylindrical winding frame with gears, and is inserted into the starting end pin terminal hole of the terminal block with pin terminal provided with the starting end pin terminal hole in advance. A gear choke coil characterized in that