JPS6144403Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a coil that improves workability.

For example, as shown in Fig. 1, a coil 3 is made by winding a conductor 2 in which 12 rectangular copper strips are stacked in parallel in two layers in multiple layers at a predetermined number of times, as shown in Fig. 2. It is wound around a core 5 to which side plates 4, 4 are attached. However, when the conductor 2 is wound in parallel, the width of the conductor 2 becomes large, so that a gap of about 1 to 2 turns is generated each time the winding layer changes. As a result, the area occupied by the conductor becomes smaller, and the conductor winding layer is more likely to collapse, so it is necessary to fill in the gaps with an appropriate insulator. As described above, conventional coils have the disadvantage that it is difficult to improve the winding efficiency.

This invention was made to eliminate the above-mentioned drawbacks, and provides a coil in which the final conductor winding in each layer is configured so that the conductor at one end crosses the conductor at the other end.

The figure will be explained below. In Figure 3, a conductor 2 consisting of 14 rectangular copper strips arranged in parallel and stacked in two layers is wound from the right side of the figure to one end.The conductor at one end is A from above, and the conductor at the other end is They are arranged as C and D from the top, and show the state at the beginning of winding at the final winding position of the first layer. From this state, by rotating the winding core 5 1/2 turn and winding the conductor 2 1/2 turn, the conductor A on one end
Lift each conductor B, move conductors C and D on the other end to one end, stack each conductor in the order of A, B, C, and D from above as shown in Figure 4, and then turn the conductors by 1/2 turn. The conductors A and B at one end are moved to the other end, and at the final winding, as shown in Figure 5, the conductors A and B that were at one end at the beginning of winding of the first layer are moved to the other end at the end of winding. This is the beginning of the winding of the second layer, which replaces the conductors C and D on the end side and moves them across to the other end side.

According to this invention, at least one pair of conductors are arranged in parallel and wound in multiple layers at a predetermined number of times, and in the final winding of each layer, the conductor at one end and the conductor at the other end cross each other. Since the area occupied by the conductor is increased and the gap during coil winding is reduced, filling work with insulator can be omitted. This improves the workability of coil winding.

[Brief explanation of the drawing]

FIG. 1 is a front view of a coil, FIG. 2 is a front view of a conventional coil, and FIGS. 3 to 5 are sectional views showing one embodiment of this invention. In the figure, 2 is a conductor, A and B are conductors at one end, and C and D are conductors at the other end. Note that the same number in each figure indicates the same or equivalent part.

Claims (1)

[Scope of utility model registration request] When at least one pair of conductors are arranged in parallel and wound in multiple layers a predetermined number of times, the conductor at one end crosses the conductor at the other end at the final turn of each winding layer. Features a coil.