JPH0244505Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention relates to a winding frame with a pin terminal, and particularly to a structure of a winding frame with a pin terminal suitable for automation of varnish impregnation work.

[Conventional technology]

Conventional transformers have flanges at both ends of the cylindrical winding core.
Using a winding frame with pin terminals in which multiple pin terminals are provided along the opposing sides of one flange, the winding core is wound, and the central leg of the E-shaped core is inserted into the central hole of the winding core.
Some are made by joining an I-shaped core across the end face of each leg. When impregnating such a transformer with varnish, the varnish must not adhere to the pin terminals, so immerse the transformer in the varnish bath with the pin terminal side facing upward. Previously, many transformers were lined up in a wire mesh container and impregnated all at once, or the pin terminals were held in a jig and hung.

[Problem that the invention attempts to solve]

In the conventional impregnation work using a wire mesh container, it is necessary to take out the transformer from the wire mesh container and rearrange it in order to dry the varnish, which makes manual work inefficient, and also causes problems such as the odor of the varnish and dripping adhering to fingers and clothes. There is. On the other hand, the work of clamping and suspending pin terminals with a jig can be automated. however,
This type of hanging is limited to transformers that are small in weight, it is difficult to hold the pin terminals at a constant height, and there are problems in that the transformer may fall during hanging.

[Means for solving problems]

The winding frame with a pin terminal according to the present invention includes an insulating cylindrical winding core, insulating flanges projecting outward at both ends of the winding core, and implants planted on the outer surface of one of these flanges along the opposite side. In a winding frame with a pin terminal, which is made up of a plurality of pin terminals, an inverted L is bent from the pin terminal side to the winding core side on the outer surface of the flange in which the pin terminals are installed.
It is characterized in that a plurality of letter-shaped protrusions are integrally provided facing each other.

[Example of idea]

Next, an embodiment of this invention will be described with reference to the drawings. FIG. 1a is a perspective view showing the structure of an embodiment of the winding frame according to this invention, with the pin terminal side facing upward. In the figure, a winding frame 1 with pin terminals includes a square tube winding core 2, a collar 3, a collar 4, and a plurality of pin terminals 5.
The tsuba 3 has sides and length sufficient to provide the required number of pin terminals 5, and the pin terminals 5 are planted on the outer surface of the tsuba 3 at regular intervals along the opposite sides, and the tsuba A lateral groove 6 parallel to the long side is formed. Furthermore, three inverted L-shaped protrusions 7 are provided on each side between the pin terminals 5 on both sides of the lateral groove 6 and the upper edge of the lateral groove 6, with the end surfaces of their horizontal arms facing each other. This is done by inserting the protrusion between the horizontal arm of the protrusion 7 and the outer surface of the base of the E-shaped core 8, and lifting the stopper 11 upward. In addition, although the above-mentioned example explained the case where there were six protruding pieces 7, it is sufficient if the number of protruding pieces is the same on both sides of the upper edge of the lateral groove 6 at least. Further, two wall-like protrusions may be provided along the entire length of the upper edge of the lateral groove 6. In that case, since the protrusion is insulative, insulation between the core and the pin terminal is better maintained.

[Effect of idea]

As explained above, the winding frame with a pin terminal according to this invention has inverted L-shaped protrusions facing each other on the collar where the pin terminal is located, so that there is no problem in assembling the core to the winding frame. Therefore, the transformer can be made by assembling the core in the conventional manner, and the transformer can be hung stably by simply inserting the plate part of the hanging jig, making varnish impregnation work easy. In addition to being useful for suspending the transformer, the projecting piece in this invention also functions as a standoff to create a gap between the core or the bottom of the winding frame and the board when the transformer is mounted on a circuit board.

[Brief explanation of drawings]

Fig. 1a is a perspective view showing the structure of an embodiment of the winding frame with pin terminal according to the present invention, Fig. 1b is a perspective view of a hanging jig, and Fig. 2 is a perspective view showing the structure of the winding frame with pin terminal of Fig. 1a. FIG. 2 is a side view showing a state in which a transformer using a winding frame is suspended by the hanging jig shown in FIG. 1b; 1: Winding frame with pin terminal, 2: Square tube winding core, 3, 4:
Tsuba, 5: Pin terminal, 6: Horizontal groove, 7: Projection piece, 8: E
Shaped core, 9: Hanging jig, 10: Plate, 11:
Clasp, 12: Winding wire, 13: I-shaped core.

Claims (1)

[Scope of utility model registration request] An insulating cylindrical winding core, insulating flanges projecting outward from each end of the winding core, and a plurality of pin terminals implanted on the outer surface of one of these flanges along opposite sides. The winding frame with a pin terminal is characterized in that a plurality of inverted L-shaped protrusions, which are bent from the pin terminal side to the winding core side, are integrally provided on the outer surface of the flange in which the pin terminal is implanted, facing each other. Reel frame with pin terminal.