JPH0135574Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Field of Application) The present invention relates to a lead wire connector for annular coils used in stepping motors and the like.

(Prior art) Conventionally, in a structure in which a lead wire is connected to a ring-shaped coil, a copper wire is wound around a ring-shaped support, and then a protective tape is wrapped around the copper wire. After connecting and soldering the lead wires at the beginning and end of the winding, and wrapping a fixing tape to fix the lead wires in place, use the burrs of the metal outer work of a stepping motor, etc. A cord bushing is provided to prevent damage to the product.

(Objective of the invention) The object of the invention is to provide a lead wire connector for a circular coil that is easy to work with and is inexpensive.

(Structure of the invention) The invention is composed of a ring-shaped coil, a strip-shaped coil band, and a connector provided with terminals.

(Example) The present invention will be described based on an example shown in the drawings.

In Fig. 1, 1 is a belt-shaped coil band integrally molded from an elastic material such as insulating resin, which has an appropriate thickness and bendability. A notch 3 is formed, and protrusions 5 having jaws 4 are formed at both ends thereof in a direction perpendicular to the horizontal plane of the belt-shaped coil band.

The connector 6 is integrally molded from an insulating resin or the like, and has a leg 8 on the lower side that has a jaw 7 that abuts and is fixed to the protrusion 5 formed on the coil band, and has a connector on the upper side. A receiving part 9 is formed into which the copper wire 18 and the lead wire 1 are inserted.
A lead wire connection portion 11 of a terminal 10 for connecting the terminal 5 is provided, and a copper wire connection portion 12 is provided on the leg side.

The connector 13 is integrally molded with an insulating resin or the like, and is inserted into a receiving portion 9 formed in the connector 6, and has a substantially U-shaped terminal 14 connected to the lead wire 15. By inserting the connector into the connector, the terminal 10 and the terminal 14 are brought into conduction.

The lead wire connector for a toroidal coil according to the present invention is constructed as described above, and the method of assembling it will be explained next. A strip-shaped coil band 1 having a total length shorter than the circumference of the outer circumferential surface of the wound copper wire and a width dimension approximately equal to the groove width of the support body is attached to the outer circumference of the copper wire as shown in FIG. Wrap it around the surface. At this time, the copper wires 19 and 20 at the beginning and end of winding are accommodated in the notches 3 formed in the coil band, and then the legs 8 of the connector 6 are aligned with the projections 5 formed in the coil band. When pressed downward, the leg comes into contact with the arcuate upper surface of the protrusion, and when pressed even harder, the leg and the protrusion are made of insulating resin and have elasticity, so While the legs are bent outward and the protrusions are bent inward, the protrusions and the jaws 4 and 7 formed on the legs are bent in the first direction.
As shown in the figure, the contact state is reached.

Next, the copper wire 19 and the copper wire 20 at the beginning and end of the winding of the copper wire 18 are wound around the copper wire connecting portion 12 provided in the connector 6, and after cutting off the excess wire, soldering is performed to complete the assembly.

Conventionally, a structure in which a lead wire is connected to a ring-shaped coil has a ring-shaped support 17 as shown in FIG.
A copper wire 18a is wound around a, and a protective tape 21 is wound around the copper wire so that the copper wire does not loosen, and the copper wires 19a and 20a at the beginning and end of the winding are processed to predetermined dimensions. The lead wire 15a is connected and soldered, and a fixing tape 22 is wrapped over the lead wire in order to fix the lead wire in a predetermined position. At this time, as shown in the figure, the fixing tape is wound around the lead wire so as to be approximately perpendicular to the outside of the support, and the lead wire is connected to a metal outer work such as a stepping motor. Cord bushing 23 to prevent the lead wire from being damaged by the burrs of 24.
is inserted.

The conventional product as described above includes copper wire 19a and copper wire 20a at the beginning and end of winding of copper wire 18a, and lead wire 1.
If the connection position of the lead wire 5a is not fixed at a fixed position with the fixing tape 22, the dimensions of the lead wire are processed to a predetermined size, so there is a drawback that the dimensions extending outside from the support body 17a are uneven; There are disadvantages in that it takes time and effort to wind the protective tape 21 and the fixing tape, and when the lead wire is long, it takes time and effort to insert the cord bush 23.

(Effects of the invention) Since the present invention is constructed as described above, the coil band 1 can be used as the two types of protective tape 21 and the fixing tape 22 of conventional products, and the connector 6
Since it also has the purpose of using the cord bush 23 like the conventional product, it is possible to shorten the assembly time, and it is easy to work, so it does not require a skilled person and has good workability.It is an inexpensive lead for circular coils. Line fittings may be provided.

[Brief explanation of the drawing]

Fig. 1 is a partially cutaway front view showing one embodiment of the present invention, Fig. 2 is an exploded perspective view of some parts of the embodiment of Fig. 1, Fig. 3 is a perspective view of a coil band, and Fig. 4. is a partially cutaway front view of a conventional product. 1...Coil band, 6...Connector, 10...
Terminal, 13... Connection tool, 15... Lead wire, 17
...Support, 18...Copper wire.

Claims (1)

[Scope of utility model registration request] An elastic material formed on the outer circumferential surface of a copper wire wound around an annular support body to form a protrusion having a coil pusher part to protect the copper wire and jaws to abut and fix a connector at both ends of the coil pusher part. A leg part having a jaw part that is abutted and fixed to the projection part having the jaw part of the wound coil band is wound with a belt-shaped coil band integrally molded with the coil band, and a socket for inserting a connecting tool into the protrusion part having the jaw part of the wound coil band. 1. A lead wire connector for a toroidal coil, characterized in that the legs of the connector are integrally molded with an insulating resin or the like, and the legs are abutted and fixed.