JPS6164103A - Multilayer hollow-core coil using autohesion wire - Google Patents

Abstract

PURPOSE:To contrive increasing torque increasing the effective area of a coil and well-balancing the torque generated by a motor and to improve the installation of the coil in an equipment by making the surface of the coil smooth and flat without rise and fall and making the lead wire of the coil at the start of winding of exposed on the coil. CONSTITUTION:In the winding of an autohesion wire, a lead wire 1 at the start of winding is taken out and an arbitrary shape multilayer hollow-core coil 3 is formed. The center of the coil is an air-core 4, the end of the wound wire is taken out as a lead wire 2 and both the lead wires 1, 2 are projected from the external surface of the coil 3 at the arbitrary position of the outermost surface of the coil. The ends of both the lead wires 1, 2 are used to be connected to conductors as terminals.

Description

Detailed Description of the Invention (Industrial Field of Application) This invention provides a method for forming a self-fused electric wire in such a manner that the winding start and winding end are continuous, and both ends of the electric wire can be pulled out to the outermost layer surface. The present invention relates to a multilayer air-core coil of self-fused electric wire.

(Prior art) Conventional multilayer air-core coils have a structure in which the base end of the winding start is pulled out from the innermost layer of the air core, and the end of the winding is pulled out from the outermost layer, and the coil is of a plane facing type. In the case of electric motors, the general method is to use the proximal end of the winding as a lead wire, go over the thickness of the coil, and draw it out from the outermost surface of the coil, or to solder it inside the air core. I still don't know how to wind this kind of coil.
The current situation is that no technical measures have been taken.

(Problem to be Solved by the Invention) However, when the lead wire at the start of winding from inside the air core of a conventional multilayer air core coil is pulled out from the outermost layer over the thickness of the coil, An extra thickness equal to the wire diameter of is added to the coil,
Therefore, the gap between the magnet and the yoke is enlarged, causing a decrease in the torque of the electric motor, and it is necessary to fix the wire with adhesive or the like in order to prevent the lead wire from floating in this area. Therefore, if the lead wire side is to be bonded to the substrate, a slit or the like must be provided to allow this portion to escape. In particular, in the case of an iron substrate, the slit cannot be provided because it causes uneven rotation of the motor. Further, if the area of the air core portion of the coil is extremely reduced, the mounting and soldering work of the Hall element becomes an internal cone, resulting in various problems in that the effective area of the coil is reduced.

(Means for Solving the Problems) This invention has been made by focusing on each of the problems of the conventional art, and it is a method for starting winding on the outermost N surface of a multilayer air-core coil using self-welding wires. It is an object of the present invention to solve the above-mentioned problems by winding the electric wire in such a manner that both ends of the winding end are formed of a continuous electric wire and can be pulled out.

Hereinafter, the present invention will be explained in detail based on the drawings.

FIG. 2 is a diagram showing the basic concept of this invention.

In Fig. 2, (1) (21 is a lead wire (1) that starts winding from the outermost layer surface of the multilayer air core coil (3), and this lead wire (1) can be shaped into an arbitrary shape. It is continuously wound to form a rigid body, and the lead wire (2) at the end of the winding is pulled out together with the lead wire (υ) at any arbitrary location on the outermost periphery. A multilayer coil (2) is formed around the outer periphery of the coil.

(for production) This invention will be explained in detail.

When winding self-welding wire, draw out the lead wire at the beginning of the winding (
1) to form a multilayer air-core coil (3) of an arbitrary shape, with the central part as the air core (4), and the end of the winding of the wire as a lead wire (2), along with the lead wire (1). It is used by protruding from the outer surface of the coil (3) at any location on the outer periphery, and connecting the terminals of both lead wires (i) (2) to a conductive strip as terminals.
Of course, a plurality of 1s can be arranged and used.

(Effects of the Invention) As explained above, the present invention provides a coil in which the lead wires at the start and end of winding are continuously wound on the outermost layer surface of a multilayer air-core coil using self-fused wires. Because of this, the lead wire at the beginning of winding is not exposed on the coil as in the conventional case, and the surface of the coil is always smooth without any undulations, so when a magnet is used, the gap between the two is close together. Therefore, it can be expected to equalize the generated torque of electric embroidery and increase the generated torque by increasing the effective area of the coil, and it also has specificity such as improving the connection state with the equipment to which the coil is attached. be.

[Brief explanation of drawings]

FIG. 1(2)(g) is a perspective view of a conventional multilayer air-core coil, and FIG. 2 is a diagram for explaining the basic concept of the present invention.

Claims (1)

[Claims] In a multilayer air-core coil that is made into a rigid body by winding self-fused electric wire and shaping into an arbitrary shape, both ends of the winding start and winding end are formed by continuous electric wire from the outermost layer surface and are wound in a state that can be pulled out. A multilayer air-core coil using self-bonding wires.