JPH073121U - Winding insulation structure and manufacturing method - Google Patents

Abstract

(57) [Summary] (Modified) [Purpose] The bobbin is not required, the multi-layer insulated wire is wound directly on the round leg of the iron core, and the withstand voltage and insulation distance of the windings are overseas safety standards (UL standards, etc.). We provide windings that are small in size and have reduced material and processing costs by realizing a winding insulation structure by a winding method that can comply with the above. [Structure] A structure in which a T-shaped iron core of a round leg is directly attached to a winding machine, a multi-layer insulated wire is wound directly on the iron core, a U-shaped iron core is coupled to this, and a terminal block is fixed to the iron core. Windings and manufacturing method thereof.

Description

[Detailed description of the device]

[0001]

[Field of the Invention]

 The present invention relates to a winding insulating structure that meets safety standards and a method for manufacturing the same.

[0002]

[Prior art]

 In order to improve the safety of the windings, high values are required for the insulation resistance and withstand voltage, and various measures have been taken in the types of insulators, insulation structures, etc. to meet these requirements. It was made in consideration of.

FIG. 1 is a diagram of a conventional iron core structure. In the figure, A is an E-shaped iron core and B is an I-shaped iron core. FIG. 2 is a structural diagram of the winding wound around the iron core. (2)

In the manufacturing procedure, the bobbin 2 is attached to the winding machine, and a magnet wire having a single coating, for example, a polyurethane wire, is formed on the inner side of the brim of the bobbin 2 for the required number of turns. The brim of the bobbin 2 prevents the winding 3 from collapsing. If necessary, an insulated separate winding may be wound on the same winding. Insulation tape 4, such as polyester film tape with a thickness of 0.025mm, is applied twice or more to the outer circumference of winding 3 to ensure the insulation withstand voltage and insulation distance between winding 3 and iron core 1 meet safety standards. Roll up. The bobbin 2 thus wound and coiled is inserted into the central leg of the E-shaped iron core A of FIG. 1, and the I-shaped iron core B is coupled to form windings.

[0005]

[Object of the Invention]

 In such an insulating structure according to the conventional manufacturing method, a bobbin, a polyester film tape, etc. are required, resulting in a high material cost and a large external dimension. Also, since there are many processing steps, the processing cost is high, and it is difficult to reduce the price with the current structure that meets safety standards. The present invention provides a winding that does not require a bobbin and an exterior tape, is small in material cost and processing cost, and is compact and satisfies safety standards.

[0006]

【Example】

 FIG. 3 is an example of an iron core structure used in the present invention. In the figure, A'is a T-shaped iron core with round legs and B'is a U-shaped iron core. FIG. 4 is a structural diagram of the winding wound around the iron core.

In the manufacturing procedure, the T-shaped iron core A ′ can be attached to a magnet or the like fixed to the winding material by a magnetic attraction force. The multi-layer insulated wire 3'is directly wound around the leg of the round portion of the T-shaped iron core A'by a winding machine. Since the winding is wound directly on the iron core without using the bobbin, it is necessary to wind the multi-layer insulated wire in order to comply with safety standards.

(3) The multilayer insulated wire has a structure as shown in FIG. 5 (A) or (B). FIG. 5C shows the structure of a conventional single-layer insulated wire. In the single-layer insulated wire, the plated wire C is coated with, for example, Teflon P3. The double-layer insulated wire is constructed by coating the plated wire C with Teflon P2 and the exterior with Teflon P1. In the three-layer insulated wire, the plated wire C is coated with, for example, Teflon P3 of 0.05 mm, Teflon P2 of 0.05 mm is further coated thereon, and Teflon P1 of 0.05 mm is further coated thereon. It is necessary for safety standards that each coating be color-separable and separable.

[0009] When a multi-layer disconnection electric wire configured as shown in Fig. 5 (A) is wound around a round leg of a T-shaped iron core A ', the left side of the T-shaped iron core A'in Fig. 3 has an iron core shape. Although the winding does not collapse, it is necessary to install a collar on the right side of the leg of the T-shaped iron core A'to prevent the winding from collapsing. After winding in this manner, the U-shaped iron core B'of FIG. 3 is joined, the terminal block 2'of FIG. 4 is fixed to the iron core 1 ', and the windings as shown in FIG. Constitute. It is also possible to realize the winding as a transformer or an inductance in the above method.

[0010]

[Explanation of effect]

 By rounding the center of the iron core and winding the multi-layer insulated wire directly around the iron core, a bobbin is not required, and the winding can be made smaller and safety standards can be maintained. Furthermore, by bobbinlessly winding directly on the iron core, processing costs and material costs can be reduced. Further, since the bobbin and the outer peripheral insulating tape are not required, the heat radiation effect of the winding is improved, and the temperature rise of the windings can be suppressed, and so on.

[Brief description of drawings]

1] Conventional iron core structure diagram

FIG. 2 (4) Conventional winding structure diagram

FIG. 3 is an iron core structure diagram of the present invention.

FIG. 4 is a winding structure diagram of the present invention.

FIG. 5: (A) Multilayer (3 layers) insulated wire construction diagram (B) Two-layer insulated wire construction diagram (C) One-layer insulated wire construction diagram

[Explanation of symbols]

 A E type iron core B I type iron core A'T type iron core B'U type iron core 1 Iron core 2 Bobbin 3 Winding 4 Insulation tape 1'Iron core 2'Terminal block 3'Multilayer insulated wire P1, P2, P3 Teflon C plated wire

Claims (1)

[Scope of utility model registration request] 1. A round leg of a T-shaped iron core is directly wound with a multi-layer insulated electric wire coated with two or more layers, and the T-shaped iron core and a U-shaped iron core forming a magnetic path are combined to form an iron core. A winding insulation structure characterized by a terminal block fixed to one end. 2. A T-shaped iron core having a round leg is directly attached to a winding machine, a multilayer insulated wire is directly wound around the round leg of the T-shaped iron core, and a U-shaped iron core forms a magnetic path. A method of manufacturing a winding, wherein the terminal block is fixed to one end of an iron core after the above combination, and the insulating structure of the winding according to claim 1 is realized. 3. The winding insulating structure and winding manufacturing method according to claims 1 and 2, wherein the winding is a transformer. 4. The winding insulating structure and the winding manufacturing method according to claims 1 and 2, wherein the winding is an inductance.