JPS59201405A - Connecting method of coil winding and bobbin used in connection thereof - Google Patents

Abstract

PURPOSE:To make winding operation in full automatic and improve working efficiency by installing a projected tongue on the circumference of a bobbin flange used for coil winding and automatically connecting an end of coil and an end of lead wire to the tongue. CONSTITUTION:On the circumference of one flange 14 of a bobbin 10 for coil winding 12, a number of tongues 16 projected to the direction of radious are installed. The tongue 16 itself is made flexible and can bend toward the interior of the circumference of the bobbin 10. When the winding 12 is wound around the bobbin 10, the starting end and the terminal end of the winding 12 are each automatically wound around the tongue 16 installed on the flange 14. Next, a specified length of lead wire 18 is drawn out from an automatic connection device and the stripped end 20 of the lead wire 18 is brought into contact with the tongue 16 Then, the soldering mechanism in the automatic connection device is operated and each end of the winding 12 and the end 20 of the lead wire 18 are automatically soldered with the tongue 16. Consequently, the efficiency of winding works is improved.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a coil winding connection method and a bobbin used for carrying out the method. By automating the wiring process for connecting lead wires, you can increase work efficiency!
This paper concerns proposals for achieving improvements in M.

Coil windings for motors, transformers, etc. are generally wound around a cylindrical bobbin, and a lead wire is connected and fixed to the end of the winding, and the lead wire is drawn out to the outside of the bobbin. There is. Coil winding onto the bobbin is automatically carried out by a winding machine, but automation of the connection between the coil winding and the draw-out lead wire is difficult to achieve for the reasons described below, and is rarely achieved. Currently, the process relies on manual labor. In other words, two related technologies are known, such as the automatic winding of the end of a coil winding around a metal pin embedded in an insulated substrate, as seen in relay coils, and the automatic winding of the end of a coil winding around a metal pin embedded in an insulating substrate, as seen in relay coils. Since the wire bobbin is housed in a case or other housing with limited capacity, it is difficult to automatically connect the lead wire by providing a protruding pin on the bobbin in view of the recent demand for miniaturization. there were.

The present invention has been devised to overcome the above-mentioned drawbacks associated with the connection of coil windings according to the prior art. The purpose is to automate the wiring process of connecting the lead wire to the end of the wire, and at the same time achieve a dramatic improvement in work efficiency.

In order to achieve the above object, the coil winding connection method according to the present invention involves winding the end of the coil winding wound around a bobbin around a protruding tongue piece formed on the peripheral edge of the bobbin. End wrapping is characterized in that after the end of the lead wire for drawing is brought into contact with the location, the two ends are connected by appropriate means.

In addition, the bobbin used to implement the coil winding connection method according to another invention of the present application has a plurality of radially protruding tongue pieces integrally formed on the outer peripheral edge of the bobbin around which the coil winding is wound. 6 Next, preferred embodiments of the coil winding connection method according to the present invention and the bobbin used to carry out the method will be described in detail below with reference to the accompanying drawings. explain.

FIG. 1 shows an embodiment of a bobbin suitably used when carrying out the coil winding connection method according to the present invention, and reference numeral 10 indicates a bobbin around which a coil winding 12 is wound. Indicates a circular bobbin. This bobbin] 0 is made of a flexible heat-resistant synthetic resin, and a plurality of tongue pieces 16 protruding in the radial direction are integrally formed on the outer peripheral edge of at least one flange 14 of the bobbin. ing. Said tongue piece 1
6 itself has flexibility and is configured to be foldable toward the inside of the outer peripheral edge of the bobbin 10.

The number of tongues 16 formed is determined depending on the number of coil windings 12 wound around the bobbin 10 and the winding method, and is limited to the bobbin shape of the embodiment shown in FIG. It is not something that will be done.

Next, a case will be described in which the method for connecting coil windings according to the present invention is implemented using the bobbin 10 configured as described above. As shown in FIG. 2, an appropriate number of coil windings 12 are wound around the bobbin 10, and at this time, the starting end and the ending end of the coil winding are respectively connected to the flange 1.
It is automatically wrapped around the tongue piece 16 formed at /l.

Next, as shown in FIG. 3, the lead wire 18 is drawn out by a predetermined length in a known automatic wire connection device (not shown), and the stripped wire end 20 of the lead wire 18 is inserted into the coil winding 12. The end winding is in contact with a portion (the coil winding on the tongue piece 16 is a portion).

After that, the soldering mechanism provided in the automatic wire connection device operates to solder the tongue-wound end of the coil winding 12 and the reed wire end 20, completing the connection and fixation of both ends. do. This ensures complete electrical continuity between both wire rods 12°18.

In the above embodiment, the case where the connection and fixation of both wire rods is performed by soldering has been explained, but the same effect can be obtained even if the connection is made by caulking the drawing line using a caulking mechanism provided as an option in the automatic wiring device. Good electrical continuity is achieved.

Next, after the coil winding 12 and the lead wire 18 are connected and fixed, the connected tongue piece 16 protruding radially outward from the flange 14 is folded back toward the inside of the outer peripheral edge of the bobbin 10. (See Figure 4). Since the tongue piece 16 can be folded back after the connection and fixation of both wire rods is completed, the outer diameter of the bobbin 10 is completely the same as the outer diameter of a conventional bobbin without a tongue piece, and therefore the internal volume is Limited motors and other components such as transformers can be stored in the case or housing as they are in the Combaku i-. In addition, since the tongue piece 16 is formed on the flange 14 of the bobbin 10 in a single process, when a metal bottle is separately attached to the flange, the tongue piece 16 is formed in one process, which incurs additional costs and production costs. That's a big deal.

By carrying out the method for connecting a coil winding according to the present invention using the bobbin according to the above-mentioned groove formation, the end of the coil winding wound on the bobbin and the end of the wire wire can be connected. Full automation of the wire connection process will be realized, and this A1 will achieve a tremendous improvement in winding work efficiency.

In the embodiment of the present invention, a circular bobbin is used to draw the drawing line A.
! The wiring method according to the present invention has been described above, but the wiring method according to the present invention can be similarly applied to square bobbins used for transformer cores and the like.

[Brief explanation of drawings]

FIG. 1 is a schematic perspective view of one embodiment of a bobbin according to the present invention;
FIGS. 2 to 4 are schematic explanatory diagrams illustrating the implementation steps of the coil winding connection method according to the present invention. IQ...Bobbin 12...Coil winding 1
(1... flange 16... tongue piece 18...
・Lead wire patent applicant: Tokai Denko Co., Ltd. Procedural Amendment (Chief) Director of the Patent Office: Kazuo Wakasugi, Case Description: 1982 Patent Application No. 77109 2 Title of Invention: Coil winding connection method and its method Bobbin 3 used for implementation, relationship with the case of the person making the amendment Patent applicant address: 1, Ueno, Kanewaka, Oyama City, Aichi Prefecture Name: Higashi7kai 1 Denko 4fAe Shikikai Souji Representative: Naotomo Matsuo 4; Agent〒460

Claims (5)

[Claims] (1) Wrap the end of the coil winding wound around the bobbin around the protruding tongue piece formed on the periphery of the flange of the bobbin, and the end of the coil winding on the tongue piece is used for pulling out. A method for connecting a coil winding, characterized in that after the ends of the lead wires are placed in contact with each other, both ends are connected and fixed. (2) The coil winding wire connection method according to claim 1, wherein the connection and fixation of the coil winding wire and the drawer-1 line drawing end portion is performed by soldering using an automatic wire connection device. (3) The method of connecting a coil winding according to claim 1, wherein the coil winding and both ends of the lead wire for drawing out are connected and fixed by caulking in an automatic wiring device. (4) Used for connecting a coil winding and a leait wire, characterized in that a plurality of tongues protruding in the radial direction are integrally formed on the outer peripheral edge of the flange of the bobbin around which the coil winding is wound. bobbin. (5) A plurality of tongue pieces formed on the outer peripheral edge of the flange of the bobbin are flexible, and the tongue pieces are directed inward at the outer peripheral edge of the flange after the coil winding and both ends of the lead wire for drawing are completed. A bohin wire used for connecting a coil winding wire and a lead wire according to claim 4 which can be folded back