JP2528594Y2 - Winding structure of electrical equipment - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a winding structure for electric equipment.

[0002]

2. Description of the Related Art A conventional winding structure will be described with reference to FIG. FIG. 2A is a plan view of the winding, and FIG. 2B is a cross-sectional view of the winding. The winding structure is such that a hole 7a is formed outside the low-voltage coil 5 wound around the low-voltage coil former 6 made of an insulator.
A high-voltage coil 2 wound around a high-voltage coil former 7 made of an insulator provided with a coil is arranged, and the high-voltage coil 2 and the low-voltage coil 5 are adjusted by a duct 8 so as to be coaxial, and are driven and fixed. The lead wire 1 passes through the hole 7 a of the high-voltage coil former 7 and is drawn out using a space between the outer diameter of the low-voltage coil 5 and the inner diameter of the high-voltage coil former 7.

[0003]

However, in the conventional structure, the inner diameter of the high-voltage coil former 7 and the low-voltage coil 5
In this case, a space for drawing out the ground-side lead wire 1 larger than the outer diameter of the ground-side lead wire 1 is required between the outer diameter of the high-voltage coil 2 and the outer diameter of the high-voltage coil 2. Further, in order to provide a space for drawing out the ground-side lead wire 1, it is necessary to drive the duct 8 for fixing the low-voltage coil 5 and the high-voltage coil 2 coaxially. Therefore, the present invention aims at eliminating the space for drawing out the ground-side lead wire between the high-voltage coil and the low-voltage coil.

[0004]

According to the present invention, in order to achieve the above object, a low-voltage coil is formed as a high-voltage coil former, an insulating sheet is wound around the periphery thereof, and a high-voltage coil is wound around the periphery thereof. The coil has a winding structure in which a ground-side lead wire of the coil passes between the wires of the low-voltage coil and is drawn inside the low-voltage coil.

[0005]

With such a winding structure, a space for drawing out the ground-side lead wire between the high-voltage coil and the low-voltage coil becomes unnecessary, so that the outer diameter of the high-voltage coil is reduced, and the low-voltage coil and the high-voltage coil are used. The need for a duct driving operation for fixing the shafts so as to be coaxial becomes unnecessary. Therefore, the coil can be reduced in size, so that material costs can be saved and the number of working steps can be reduced.

[0006]

FIG. 1A and FIG. 1 show an embodiment of the present invention.
This will be described with reference to FIG. FIG. 1A is a plan view of a winding,
FIG. 1B is a sectional view of the winding. The winding structure is the hole 6a
The low-voltage coil 5 is wound around the low-voltage coil former 6 made of an insulator provided with a space between the electric wires 5b so that the space 5a is provided on the hole 6a. The sheet 4 is wound, and the ground side lead wire 1 is
Is passed through the space 5a and the hole 6a, and the high voltage coil 2 drawn inside the low voltage coil 5 is wound.
Here, the hole 6a and the space 5a are located within the length of the high-voltage coil 2 in consideration of disturbance of the electric field. With such a winding structure, the low-voltage coil 5 and the high-voltage coil 2
The space for drawing out the ground-side lead wire 1 is not required.

[0007]

As described above, the winding structure according to the present invention can reduce the outer diameter of the high-voltage coil as described in the embodiment, and can eliminate the need for the work of driving the duct. A simple and inexpensive winding can be obtained. Further, there is no disturbance of the electric field on the outer periphery of the low-voltage coil due to the ground side lead wire, and the reliability is improved.

[Brief description of the drawings]

FIG. 1 shows an example of a winding structure of an electric device according to the present invention, wherein (a) is a plan view and (b) is a cross-sectional view.

FIGS. 2A and 2B show a general example of a winding structure of a conventional electric device, wherein FIG. 2A is a plan view and FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Ground side lead wire 2 High voltage coil 3 Lead wire 4 Insulation sheet 5 Low voltage coil 5a Space 5b Electric wire 6 Low voltage coil winding form 6a Hole

 ──────────────────────────────────────────────────続 き Continued from the front page (56) References JP-A-63-175405 (JP, A) JP-A-60-176528 (JP, U) JP-A-61-111142 (JP, U)

Claims (1)

(57) [Scope of request for utility model registration] In a winding structure of an electric device in which a high-voltage coil is disposed outside a low-voltage coil and one end of the high-voltage coil is grounded, the low-voltage coil is formed into a high-voltage coil winding form, and an insulating sheet is wound around an outer periphery thereof. Around a high-voltage coil,
The winding structure of electrical equipment in which the ground-side lead wire of the high-voltage coil passes between the wires of the low-voltage coil and is drawn inside the low-voltage coil.