JPH019255Y2 - - Google Patents

Description

[Detailed explanation of the invention] [Purpose of the invention] The invention is a resin molded motor, transformer,
This invention relates to the improvement of electrical equipment such as solenoid coils, particularly lead drawer stands for molded equipment. A case of a resin molded motor will be described as a conventional resin molded device of this type which is an object of improvement of the present invention. In FIG. 1, 1 is a stator core, 2 is a coil, 3 is a lead wire, 4 is a resin mold jacket, and 5 is a base for drawing out the lead wire 3. Drawer stand 5
As shown in FIG. 3, there are a pair of flat base plates 5 each having a plurality of semicircular long grooves 6 into which the lead wires 3 are fitted, one protrusion 7 and one fitting hole 8.
It is a split type that combines a and 5b, and 5a and 5b
5a and 5b have the same shape and there is no distinction between them.
The lead wire 3 is held by the long groove 6 of
Each inserts into the fitting hole 8 of a.

In order to improve the adhesion between the long groove 6 and the lead wire 3, the diameter of the long groove 6 is made slightly smaller than the diameter of the lead wire 3. Therefore, the lead wire 3 is connected to the long groove 6.
When fitted, a gap d is created as shown in FIG. This gap d is a margin that disappears by tightening with a mold during resin injection. By the way, when resin is injected into a drawer stand having the above structure, the resin leaks out even though the seam has disappeared. This is because the thermoplastic resin that insulates the lead wire 3 is softened by the heat generated during molding of the injected resin, and its adhesion with the long groove 6 is reduced, allowing the resin to leak. If burrs from the leaked resin are formed on the front surface of the drawer table 5, the product value will be reduced, and removal work will be required, which will significantly reduce productivity. The object of the present invention is to provide a resin molding device equipped with a lead wire pull-out stand that is free from the risk of such a phenomenon (resin leakage) occurring.

[Structure of the idea]

The present invention includes a drawer lead wire 3, a drawer stand 5,
The lead wire 3 is coated with an insulating material, and the lead wire 3 is coated with an insulating material.
consists of a pair of flat base plates 5a, 5b, the flat base plates 5a, 5b are opposite to each other, and each of the flat base plates 5a, 5b has long grooves 6, 6 on the surfaces facing each other. and horizontal grooves 9, 9, the horizontal grooves 9, 9 are orthogonal to the long grooves 6, 6 in the longitudinal direction of the long grooves 6, 6, and the drawer base 5
The lead wire 3 is accommodated and held in the long grooves 6, 6, and is embedded in the resin mold jacket 4.

〔Example〕

An embodiment of the present invention will be described with reference to FIGS. 4 to 7. In these, 1 to 8 have no difference from the conventional structure shown in FIGS. 1 to 3, so the explanation thereof will be omitted. In the present invention, a pair of flat base plates 5a and 5b have a horizontal groove 9 orthogonal to the long groove 6.
It is characterized in that two are provided at the front and rear of the flat base plate.

[Effect of idea]

Since the present invention has the above-described configuration, when the drawer base 5 is set in a resin mold together with the stator core and its attached parts and resin is injected, the insulating coating of the lead wire 3 may become loose due to softening. Therefore, even if the injected resin enters into the long groove 6, the injected resin is absorbed into the horizontal groove 9, so that the resin does not leak out from the front of the drawer stand 5. That is, the horizontal groove 9
There are two in the front and back of the drawer stand 5, so
The resin that has entered the gap between the flat base plates 5a and 5b is first absorbed into the rear lateral groove 9, and after the rear lateral groove 9 is filled with the resin, it is absorbed into the front lateral groove 9. Since the present invention has the above-mentioned functions, it has the effect of achieving the object of the above-mentioned invention.

[Brief explanation of the drawing]

Figure 1: A diagram showing the structure of a conventional lead wire pull-out base, Figure 2: A sectional view taken along line AB in Figure 1, Figure 3: A diagram showing the structure of the pull-out base 5 in Figure 1, where A is the front view. figure,
B is a plan view, C is a side view, FIG. 4: A diagram showing the structure of the lead wire extraction part of the resin molding device of the present invention
Figure 5: Cross-sectional view of line AB in Figure 4, Figure 6: Figure 4
Cross-sectional view along CD line, FIG. 7: A diagram showing the structure of the drawer stand 5 in FIG. 4, where A is a front view, B is a plan view, and C is a side view. 1... Stator core, 2... Coil, 3... Lead wire, 4... Resin mold jacket, 5... Drawer stand,
5a, 5b...Flat base plate, 6...Long groove, 7...Protrusion, 8...Inset hole, 9...Horizontal groove.

Claims (1)

[Claims for Utility Model Registration] Comprising a drawer lead wire 3, a drawer stand 5, and a resin molded outer cover 4, the drawer lead wire 3 is coated with an insulating material, and the drawer stand 5 is , consisting of a pair of flat base plates 5a, 5b, the flat base plates 5a, 5b are opposite to each other, and each of the flat base plates 5a, 5b has long grooves 6, 6 on the surfaces facing each other. , horizontal grooves 9, 9, the horizontal grooves 9, 9 are perpendicular to the long grooves 6, 6 in the longitudinal direction of the long grooves 6, 6, and the drawer stand 5 has a drawer lead in the long grooves 6, 6. A resin molding device characterized in that a wire 3 is housed and held therein, and the wire 3 is embedded in a resin mold jacket 4.