JP5485453B1 - Relay core process - Google Patents

Abstract

A relay iron core process is provided.
[Solution]
This relay iron core process includes processing such as cutting, forward bay fold, contact bay fold, and bay fold extruding. The invention can be easily achieved, reliably achieve the effects of the present invention, and have good practicality.
[Selection] Figure 1

Description

  The present invention relates to a relay, and more particularly, to a manufacturing process for use in a relay core.

  The public notice No. CN100461325C of the People's Republic of China is an electromagnetic relay, and the manufacturing method of the iron core presented in the second stage of the specification page 8 is “a plate-like magnetic material is stamped by pressure processing and is substantially U-shaped The two support arms that acquire the magnetic material and extend in the same direction from both ends of the linear portion that is the main portion are curved at the bottom of the support arm, and the support arms themselves are raised at the same angle. The magnetic pole is formed by the upright part and the intermediate part of the support arm, curved at an acute angle, and then subjected to pressure processing to form a horizontal surface on the magnetic pole to increase the suction area. “A substantially U-shaped step portion is formed on the peripheral edge of the magnetic pole surface by pressure machining to prevent the mold resin from sticking to the magnetic pole surface of the magnetic pole.”

  The above is the manufacturing process of the iron core of the thin relay, and the process of forming the magnetic pole by the support arm directly forms the magnetic pole by bending the thickness of the single support arm. However, this single support arm folding method has a finite cross-sectional area that can be obtained and influences the magnetic attraction of the relay. In view of this, the inventor of the present application researched and developed the processing of the iron core in order to obtain a large cross-sectional area with the iron core and efficiently improve the magnetic attraction operation capability, and has many years of practical experience in the electronic component industry. And with the accumulated knowledge, through a number of trials and experiments, finally invented the relay iron core process, and efficiently improved the magnetic attraction action effect of the above conventional iron core, thus, the practicality is extremely good and the industry It is suitable for use in mass production.

Public Notice of the People's Republic of China CN100461325C

  An object of the present invention is to make it possible to easily achieve control of the magnetic attraction effect on the magnetic pole of the relay iron core having a large cross-sectional area as a whole.

  Another object of the present invention is to avoid the generation of magnetic gaps in the relay iron core, reduce the loss of magnetic force, and improve productivity.

  In order to achieve the above-mentioned effect, the relay iron core process of the present invention cuts a piece of metal material into a semi-finished product having an arch shape, and the arch-like semi-finished product has a connection portion and two each of the two pieces. A cutting step in which extending portions connected to both ends of the connecting portion and the ends of the two extending portions extend in the same direction; a forward bay fold is performed at a position near the middle stage of the extending portions, and the extending portions Are divided into a first molding stage connected to the connection part and a second molding stage connected to the first molding stage, and the first molding stage and the connection part are in a horizontal state, and the second molding stage A step is a forward bay folding step that presents an included angle relative to the first forming step; and a second forming step that is folded toward the first forming step and the second forming step end step is An abutting breakage step of contacting the first molding stage and enclosing an elongated gap between the second molding stage and the first molding stage; and the second molding stage The position near the end and the position near the end of the corresponding first molding stage of the first forming stage is fold-folded, and the direction of the fold-fold is opposite to the forward direction fold-fold, and the first and second forming stages Extruding relative to the circumferential side of the first forming step, and forming an elliptical gap surrounded by the first forming step and the second forming step, and a position near the end of the second forming step is the surface of the first forming step The first and second forming steps are laminated to each other and further extrusion is performed to eliminate the gap; the first forming step and the second forming step form a block-shaped magnetic pole. A bay fold extrusion step of final extrusion to present.

The present invention provides a first inclined surface, a second inclined surface, and a first forming step and a second forming step with respect to the first forming step and the second forming step at the time of the final forming of the bay folding extrusion. The first and second inclined surfaces are respectively opposed to the upper and lower surfaces of the connecting portion. Of these, the installation of the first inclined surface and the second inclined surface exhibits a direction of gradually expanding relative to the magnetic pole.

This relay iron core process includes processing such as cutting, forward bay fold, contact bay fold, and bay fold extruding. The invention can be easily achieved, reliably achieve the effects of the present invention, and have good practicality.

It is a block diagram of the processing process of this invention. It is explanatory drawing after the iron core of this invention was cut. It is explanatory drawing after the iron core of this invention is bay-folded in the positive direction. It is explanatory drawing by which the iron core of this invention is contacted and folded. It is explanatory drawing by which the iron core of this invention is bay-fold extruded. It is explanatory drawing by which the iron core of this invention is bay-fold extruded. It is explanatory drawing by which the iron core of this invention is bay-fold extruded. It is explanatory drawing by which the iron core of this invention is bay-fold extruded. It is the solid explanatory drawing which the iron core of this invention couple | bonded with the wire wheel. It is explanatory drawing which the iron core of this invention couple | bonds with a wire wheel, and winds a coil around a wire wheel. It is explanatory drawing which assembled | attached the relay related assembly after the iron core of this invention couple | bonded with the wire wheel and the coil was wound.

  The following is a description of the preferred embodiment and does not impose any formal limitations on the present invention. As shown in FIG. 1, the core process of the relay according to the present invention includes the core 1 including process processing such as cutting S1, forward bay fold S2, abutting bay fold S3, bay fold extrusion S4 and the like. Is done.

  The cutting S1 cuts the piece-like metal material into a semi-finished product having an arch shape, and the arch-like semi-finished product is connected to the connecting portion 11 and the two extending portions 12 connected to both ends of the connecting portion 11, respectively. 13 and the ends of the two extending portions 12, 13 extend in the same direction, which employs a film having a magnetic material, cuts the arched semi-finished product into the required shape, and the arch The shaped semi-finished product forms the connecting part 11 and the extending parts 12 and 13 extending in the same direction along both ends of the connecting part 11 and presents a parallel arrangement opposite to the extending parts 12 and 13 (see FIG. 2).

  In the forward direction fold S2, the first direction folds 121 and 131 connecting the connecting portion 11 to the extending portions 12 and 13 are carried out at the position near the middle stage of the extending portions 12 and 13. And the first molding stages 121 and 131 are divided into second molding stages 122 and 132, and the first molding stages 121 and 131 and the connecting portion 11 are in a horizontal state, and the second molding stages 122 and 132 are in a horizontal state. Presents a narrow angle relative to the first molding steps 121 and 131, and the position near the middle stage of the two extending portions 12 and 13 folds upward, and the first molding steps 121 and 131. And the second molding steps 122 and 132 have a vertical configuration, and the first molding steps 121 and 131 are in the same horizontal shape as the connecting portion 11, and the second molding steps 122 and 132 are The first forming steps 121, 131 and the vertical included angle form are exhibited (see FIG. 3).

The contact fold fold S3 folds the second molding stage 122, 132 toward the first molding stage 121, 131, and the second molding end 122, 132 end stage is the first molding stage 121, 131, and encloses an elongated gap 123, 133 between the second molding stage 122, 132 and the first molding stage 122, 132, which is the first molding stage 121, 131 and the second molding stage. Between the steps 122 and 132 and the first forming steps 121 and 131 is the axis of the bay folding, the second forming steps 122 and 132 are brought into contact with the first forming steps 121 and 131, and the second Elongated gaps 123 and 133 are enclosed between the molding stages 122 and 132 and the first molding stages 121 and 131 (see FIG. 4).

In the bay folding extrusion S4, the positions near the ends of the second molding stages 122 and 132 and the positions near the ends of the corresponding first molding stages 121 and 131 of the first molding stages 121 and 131 are fold-folded (vertical in FIG. 5). 5), this fold direction is opposite to the forward direction fold S2, and is extruded relative to the peripheral sides of the first forming steps 121, 131 and the second forming steps 122, 132 (see FIG. 5). Horizontal extrusion), and by extruding the elliptical gaps 123, 133 surrounded by the first molding stage 121, 131 and the second molding stage 122, 132 (see FIG. 6), and the second molding stage 122, The position near the end of 132 is in contact with the surface of the first molding stage 121, 131 to form the contact stage 124, 134; the first molding stage 121, 131 and the second molding stage 122, 132 are laminated together. Re-extrusion to erase gaps 123 and 133 (See FIG. 7), the first forming step 121, 131 and the second forming step 122, 132 are both brought into tight contact, and the elliptical gaps 123, 133 are eliminated; the first forming step; The steps 121, 131 and the second forming steps 122, 132 are finally extruded so as to present the block-shaped magnetic poles 125, 135 (see FIG. 8); The structure (the first forming stage 121, 131 and the second forming stage 122, 132) reliably increases the cross-sectional area of the magnetic poles 125, 135. 135, and thus the magnetic poles 125, 135 can more easily achieve a magnetic attraction effect, thereby achieving the objectives of the present invention.

  In the present invention, at the time of the bay folding extrusion S4, the first molding steps 121 and 131 and the second molding steps 122 and 132 are laminated to each other by extrusion, and the gaps 123 and 133 are erased. The generation of unnecessary gaps between the first molding stages 121 and 131 and the second molding stages 122 and 132 is avoided. In this way, the iron core 1 of the relay is energized to generate a magnetic force operation, and magnetic Since the generation of a gap is largely avoided, the present invention effectively reduces unnecessary loss of magnetic force of the magnetic attraction action of the iron core 1, so that the present invention corresponds to the operation of mass-promoted production by a contractor. Has suitable properties.

  The final extrusion process of the bay folding extrusion S4 will be further described, and the first inclined surfaces 126, 136 and the second inclined surface 127 for the first forming steps 121, 131 and the second forming steps 122, 132, respectively. 137, the magnetic attraction surfaces 128, 138 between the first molding steps 121, 131 and the second molding steps 122, 132 are extruded, and the first inclined surfaces 126, 136 and the second inclined surfaces are formed. The surfaces 127 and 137 are opposed to the upper and lower surfaces of the connecting portion 11, respectively. Further, the installation of the first inclined surfaces 126 and 136 and the second inclined surfaces 127 and 137 exhibits a direction in which the first inclined surfaces 126 and 136 gradually spread relative to the magnetic poles 125 and 135.

  The actual operation of the iron core 1 of the relay after undergoing the processing is as shown in FIGS. 9 to 11, and this iron core 1 is injection-molded into a wire wheel mold and covered with the wire wheel 2, and The wire wheel 2 forms through holes 21 and 22 that penetrate the magnetic attraction surfaces 128 and 138 of the magnetic poles 125 and 135, and the wire wheel 2 forms a winding step 23 around which the coil 3 is wound. Discloses a related member of the wire wheel 2 and the iron core 1 and the coil 3, and the related member includes a movable piece 31, a coil connection pin, and a contact terminal connection pin, of which the movable piece 31, the magnetic poles 125 and 135 at both ends of the iron core 1 are attracted by the magnetic force generated when the coil 3 is energized. Thus, the present invention is compared with the prior art in the present invention. The core 1 reliably increases the cross-sectional area of the magnetic poles 125 and 135 by the laminated structure (the first forming steps 121 and 131 and the second forming steps 122 and 132). The magnetic poles 125 and 135 having a large cross-sectional area can be provided. Thus, the magnetic poles 125 and 135 can easily achieve the magnetic attraction effect, and the object of the present invention is reliably achieved.

The above description describes preferred embodiments that exhibit the technical features of the present invention. Those skilled in the art can make changes and modifications within the scope of the present invention, and such changes and modifications are included in the scope of the claims of the present invention.

S1 Cut S2 Positive bay fold S3 Contact bay fold S4 Bay fold extrusion 1 Iron core 11 Connection portion 12 Extending portion 121 First molding stage 122 Second molding stage 123 Gap 124 Contact stage 125 Magnetic pole 126 First inclined surface 127 2 inclined surface 128 magnetic attraction surface 13 extending portion 131 first forming step 132 second forming step 133 gap 134 abutting step 135 magnetic pole 136 first inclined surface 137 second inclined surface 138 magnetic attraction surface 2 wire wheel 21 through hole 22 through Hole 23 Winding stage 3 Coil 31 Movable piece

Claims (3)

A piece of metal material is cut into an arch-shaped semi-finished product, the arch-shaped semi-finished product having a connecting portion and two extending portions respectively connected to both ends of the connecting portion, and the two A cutting step in which the ends of the stretched portion are stretched in the same direction;
A forward bay fold is performed at a position near the middle stage of the extension part, the extension part is divided into a first molding stage connected to the connection part and a second molding stage connected to the first molding stage, and The first molding step and the connection portion are in a horizontal state, and the second molding step is a forward bay folding step that exhibits a included angle relative to the first molding step;
The second molding stage is folded into a direction toward the first molding stage, and the second molding stage end stage is in contact with the first molding stage, and the space between the second molding stage and the first molding stage is between The contact bay folding process surrounding the elongated gap,
The position near the end of the second forming step and the position near the end of the first forming step corresponding to the first forming step folds, and the direction of the fold is opposite to the forward direction fold. , Extruding relative to the circumferential side of the second molding stage, base extruding the elliptical gap surrounded by the first molding stage and the second molding stage, and the position near the end of the second molding stage is Abutting on the surface of the first forming step, forming a contact step, laminating the first and second forming steps to each other, re-extruding to eliminate the gap, the first forming step and the second forming step are A relay iron core process including a bay fold extrusion process in which a final extrusion molding is performed so as to exhibit a block-shaped magnetic pole. The bay folding extruding step includes a first inclined surface and a second inclined surface, and a gap between the first forming step and the second forming step with respect to the first forming step and the second forming step, respectively, at the time of final forming. The relay iron core process according to claim 1, wherein the magnetic attraction surface is pushed out, and the first and second inclined surfaces are respectively opposed to the upper and lower surfaces of the connection portion. 2. The relay core process according to claim 1, wherein the first inclined surface and the second inclined surface are disposed in a direction gradually expanding with respect to the magnetic pole.

Images