WO2020080360A1

WO2020080360A1 - Terminal component and manufacturing method therefor, and electronic device including terminal component

Info

Publication number: WO2020080360A1
Application number: PCT/JP2019/040496
Authority: WO
Inventors: 庸吉村; 厚希笹井; 梢吾供田; 侑紀佐藤
Original assignee: パナソニックＩｐマネジメント株式会社
Priority date: 2018-10-16
Filing date: 2019-10-15
Publication date: 2020-04-23
Also published as: JP2022031985A

Abstract

The present disclosure provides a terminal component such that when connection between the terminal component and an electrical outlet (in particular a plug socket structure) is achieved by swaging a rod-like protrusion, the occurrence of a fracture (or a crack) at the swaged part can be more sufficiently suppressed. The present disclosure is a metal terminal component 100 provided with a body section 10 having a through-hole 1 through which electrical wires are inserted and a cylindrical recessed part 2 that intersects the through-hole 1, and a rod-like convex protrusion 20, said protrusion 20 being characterized in that metal flow is continuous along a wall-part surface 200 at a wall part 201 that follows the height direction of the protrusion.

Description

Terminal component, manufacturing method thereof, and electronic device including terminal component

The present disclosure relates to a terminal component for electrically and mechanically connecting an electric wire to an electronic device, a manufacturing method thereof, and an electronic device including the terminal component.

Conventionally, terminal parts have been used to electrically and mechanically connect electric wires to electrical devices such as outlets. Various types of terminal components have been proposed, and for example, the terminal components disclosed in Patent Documents 1 to 5 are known.

Among the terminal parts, a terminal part 500 as shown in FIG. 11A is known as a terminal part for electrically and mechanically connecting an electric wire to an electronic device more easily by crimping a predetermined portion. . The terminal component 500 shown in FIG. 11A includes a main body portion 510 and a rod-shaped convex portion 520, and the main body portion 510 has a through hole 501 through which an electric wire is passed and a cylindrical recess 502 intersecting the through hole. There is. In FIG. 11A, the cylindrical recess 502 opens downward on the bottom surface of the main body 510, and a screw can be inserted from below to tighten the screw. By inserting a screw into the cylindrical recess 502 and tightening the screw while the electric wire is inserted in the through hole 501, the electric wire is pressed and fixed by the screw, and the electrical connection between the terminal component 500 and the electric wire is mechanically performed. Connection is achieved. In such a terminal component 500, as shown in FIG. 11B, the rod-shaped convex portion 520 is inserted into the hole of the blade receiving structure 600 of the outlet and caulked so that the terminal component 500 and the outlet (particularly An electrical and mechanical connection with the blade receiving structure 600) is achieved. The terminal component 500 is manufactured by cutting. In FIG. 11B, the bar-shaped convex portion (crimped portion) in the crimped state is shown as reference numeral 520 ′. Although the electric wire is omitted in FIG. 11B, normally, the screw 700 is inserted into the cylindrical recess 502 and fastened with the electric wire being passed through the through hole 501. The blade receiving structure 600 of the outlet generally includes a blade receiving spring for fixing the inserting blade of the plug with an appropriate force so that the inserting blade can be inserted and removed in the inserting and removing direction (x 'direction in FIG. 11B). Particularly, the blade receiving structure 600 of FIG. 11B includes a first blade receiving spring 600a and a second blade receiving spring 600a for pressing and fixing the insert blade in two directions (y ′ direction and z ′ direction in FIG. 11B) perpendicular to each other. The blade receiving spring 600b is included.

Japanese Patent Laid-Open No. 2001-035557 JP, 2011-113680, A JP, 2014-049351, A JP, 2013-171779, A Japanese Patent Laid-Open No. 2001-110471

The inventors of the present disclosure have found that the conventional terminal component 500 may be desired to be crimped with higher crimp strength. Specifically, when the rod-shaped protrusion 520 of the conventional terminal component 500 is caulked to achieve the connection between the terminal component 500 and the outlet (particularly, the blade receiving structure 600 thereof), as shown in FIG. A crack (or crack) 550 may occur in 520 '. For this reason, the terminal component 500 and the outlet (in particular, the blade receiving structure 600) may not be electrically and mechanically connected with sufficiently high reliability.

The present disclosure more sufficiently cracks (or cracks) the swaged portion when the connection between the terminal component and the electronic device (for example, the outlet (particularly, its blade receiving structure)) is achieved by swaging the rod-shaped convex portion. It is an object of the present invention to provide a terminal component that can be suppressed.

This disclosure is
A main body having a through hole through which an electric wire is passed and a cylindrical recess intersecting with the through hole;
A metal terminal component, comprising a rod-shaped convex portion,
The said convex part relates to the terminal part characterized by the metal flow being continuous along the surface of this wall part in the wall part along the height direction of this convex part.

The terminal component of the present disclosure is such that when the connection between the terminal component and the electronic device (for example, the blade receiving structure of the outlet) is achieved by crimping the bar-shaped convex portion, the crimped portion (that is, the crimped bar-shaped convex portion). The cracks (or cracks) of the (part) can be suppressed more sufficiently. Therefore, the terminal component of the present disclosure exhibits a sufficiently high caulking strength, and the electric wire is electrically and mechanically connected to the electronic device (for example, the blade receiving structure of the outlet) with sufficiently high reliability. can do.

The typical sketch drawing (lower perspective view) of an example of the terminal part concerning a 1st embodiment of this indication is shown. The typical front view (or schematic rear view) of the terminal component of FIG. 1 is shown. The typical top view of the terminal component of FIG. 1 is shown. The typical bottom view of the terminal component of FIG. 1 is shown. The typical right side view (or schematic left side view) of the terminal component of FIG. 1 is shown. An example of a schematic cross-sectional view of the terminal part of FIG. 1 taken along a plane passing through an axis X and an AA line and viewed in the direction of an arrow and an enlarged schematic view at an observation point A is shown. An example of the expansion schematic diagram in the observation point B in the schematic cross section of FIG. 2E is shown. An example of the expansion schematic diagram in the observation point C in the schematic cross section of FIG. 2E is shown. FIG. 2E shows an example of an enlarged schematic view of a thread groove portion and a screw thread portion in the schematic cross-sectional view of FIG. 2E. An example of the flowchart which shows the manufacturing method of the terminal component which concerns on 1st embodiment of this indication is shown. An example of the front extrusion forging process in the manufacturing method of the terminal component according to the first embodiment of the present disclosure is shown. An example of the upsetting forging process in the manufacturing method of the terminal component according to the first embodiment of the present disclosure is shown. An example of the backward extrusion forging process in the manufacturing method of the child component according to the first embodiment of the end of the present disclosure is shown. An example of the bottom surface punching process in the method of manufacturing the terminal component according to the first embodiment of the present disclosure is shown. The schematic sketch of an example of the blade receiving structure of an outlet containing the terminal component which concerns on 1st embodiment of this indication is shown. FIG. 6B is a schematic top view of the blade receiving structure of the outlet shown in FIG. 6A. FIG. 6B is a schematic right side view of the blade receiving structure of the outlet shown in FIG. 6A. The schematic diagram of the 1st blade receiving spring which comprises the blade receiving structure of the outlet shown in FIG. 6A is shown. The schematic diagram of the 2nd blade receiving spring which comprises the blade receiving structure of the outlet shown in FIG. 6A is shown. The schematic diagram of the electric wire pressing screw which comprises the blade receiving structure of the outlet shown in FIG. 6A is shown. The typical sketch drawing (lower perspective view) of an example of the terminal part concerning a 2nd embodiment of this indication is shown. The schematic sketch drawing (upper perspective view) of the terminal component of FIG. 7A is shown. FIG. 7B shows a schematic front view of the terminal component of FIG. 7A. FIG. 7B is a schematic top view of the terminal component of the terminal component of FIG. 7A. FIG. 7B is a schematic bottom view of the terminal component of the terminal component of FIG. 7A. The schematic right side view (or schematic left side view) of the terminal component of the terminal component of FIG. 7A is shown. An example of a schematic cross-sectional view of the terminal part of the terminal part of FIG. 7A when seen in the direction of the arrow cut along a plane passing through the axis X and the line AA, and an enlarged schematic view at an observation point A. Indicates. An example of the enlarged schematic diagram in the observation point B in the schematic sectional view of FIG. 8E is shown. The schematic sketch drawing (upper perspective view) of an example of the integrated product (terminal structure) of the terminal component and the terminal plate, in which the terminal plate is fixed to the terminal component according to the second embodiment of the present disclosure, is shown. FIG. 10C is a schematic sketch (upper perspective view) of a switch cover portion in a switch including an integrated product (terminal structure) of the terminal component and the terminal plate shown in FIG. 10A as a component. FIG. 10B is a schematic sketch (upper perspective view) of the switch body in the switch including the integrated product (terminal structure) of the terminal component and the terminal plate shown in FIG. 10A as a component, A partially enlarged view is shown. FIG. 10B is a schematic sketch (upper perspective view) of the switch body in the switch including the integrated product (terminal structure) of the terminal component and the terminal plate shown in FIG. 10A as a component, A partially enlarged view is shown. FIG. 10B is a schematic sketch (lower perspective view) of the switch cover portion in the switch including the integrated product (terminal structure) of the terminal component and the terminal plate shown in FIG. 10A as a component, and is a partially enlarged view of the switch cover portion. . The typical front view (or schematic rear view) of the conventional terminal component is shown. The schematic sketch of an example of the blade receiving structure of an outlet containing the conventional terminal component is shown.

The terminal component of the present disclosure is an electrical component for electrically and mechanically connecting an electric wire to an electronic device. The dimensions of the terminal component of the present disclosure can be appropriately determined according to the application and dimensions of the electronic device to be connected, and for example, relatively small electronic devices such as outlets and switches (for example, electronic appliances for home appliances). The size may be according to the connection of the electric wire in the device).

Hereinafter, the terminal component of the present disclosure will be described in detail with reference to the drawings. However, various elements in the drawings are merely schematic and exemplifying for understanding of the present disclosure, and the external appearance and the dimensional ratio are not shown. It may be different from the real thing. The “vertical direction”, “horizontal direction” and “front and back direction” used directly or indirectly in the present specification correspond to the vertical direction, the left and right direction and the front and back direction in the drawing, respectively. Unless otherwise specified, the same reference numeral or sign indicates the same member or the same meaning.

<First embodiment>
The terminal component 100 according to the first embodiment of the present disclosure includes, for example, as shown in FIG. 1, a main body 10 for electrically and mechanically connecting an electric wire (not shown) to the terminal component 100, and the terminal component. And a rod-shaped convex portion 20 for electrically and mechanically connecting 100 to an electronic device. The terminal component 100 of the present embodiment has a front view shape, a top view shape, a bottom view shape, a side view shape and a cross sectional view shape as shown in FIGS. 2A to 2E, respectively. The front view means that the terminal component 100 is placed such that the axial direction X of the rod-shaped convex portion 20 is the vertical direction and the rod-shaped convex portion 20 is arranged vertically upward, and is seen from an angle facing the through hole 1. This is the condition when the player touches the ground, which is the same as the front view. The axial direction X of the rod-shaped protrusion 20 may be referred to as a long direction or a long-axis direction in the sense that it defines the length direction or the height direction of the rod-shaped protrusion 20 in some cases. The top view means that the terminal component 100 is placed with the axial direction X of the rod-shaped protrusions 20 as the vertical direction so that the rod-shaped protrusions 20 are arranged vertically above and viewed from directly above the rod-shaped protrusions 20. This is the condition when the product is in the same state as the plan view. The bottom view means that the terminal component 100 is placed on the transparent plate such that the axial direction X of the rod-shaped convex portion 20 is the vertical direction and the rod-shaped convex portion 20 is arranged vertically upward, and the terminal component 100 is directly under the terminal component 100. This is the condition when viewed from above, which is synonymous with the bottom view. The side view means that when the terminal component 100 is placed such that the axial direction X of the rod-shaped convex portion 20 is the vertical direction and the rod-shaped convex portion 20 is arranged above the vertical direction, the terminal component 100 is seen from right side of the terminal component 100. This is the condition of the above and is synonymous with the side view. The cross-sectional view is a state when the terminal component 100 is cut parallel to the axial direction X of the rod-shaped convex portion 20, and is synonymous with the cross-sectional view. The placement is a placement of the terminal component 100 with the surface 11 on the opposite side of the upper surface 12 of the main body 10 having the rod-shaped protrusions 20 as the bottom surface. FIG. 1 shows a schematic sketch of an example of the terminal component of this embodiment. 2A to 2E are a schematic front view (or schematic rear view), a schematic top view, a schematic bottom view, a schematic right side view (or a schematic left side view) of the terminal component of FIG. A typical sectional view is shown. In particular, FIG. 2E is a schematic cross-sectional view of the terminal component when the terminal component of FIG. 1 is cut along a plane passing through the axis X and the line AA and viewed in the direction of the arrow, and an enlarged schematic diagram at the observation point A. An example is shown.

The main body 10 has a through hole 1 through which an electric wire is passed and a cylindrical recess 2 that intersects the through hole 1. The dimensions of the terminal component of the present embodiment can be appropriately determined according to the application and dimensions of the electronic device to be connected, and for example, relatively small electronic devices such as outlets and switches (for example, for household appliances). The size may correspond to the connection of the electric wire in the electronic device).

The main body 10 has a rectangular parallelepiped shape as an overall shape in FIG. 1 and the like, but may have a cylindrical shape, an elliptic cylinder shape, a polygonal prism shape, or the like. Here, the polygonal prism shape is not particularly limited, and may be, for example, a triangular prism shape, a quadrangular prism shape, a pentagonal prism shape, a hexagonal prism shape, or the like. From the viewpoint of workability (for example, efficiency in passing an electric wire through the through-hole 1), the main body 10 preferably has a polygonal prism shape as a whole shape. Since the main body 10 having a polygonal prism shape (particularly a rectangular parallelepiped shape) as a whole has a flat surface as a side surface, when the electric wire is passed through the through hole 1, the orientation of the terminal component is determined based on the flat surface, and the terminal is This is because it is advantageous for holding the parts.

The through hole 1 is a hole penetrating the main body 10 in one direction perpendicular to the axial direction X of the rod-shaped convex portion 20. The one direction is usually a direction perpendicular to an outer surface (for example, a plane) of the main body 10. When the surface is a curved surface, the one direction may be a direction perpendicular to a plane in contact with the curved surface. In FIG. 1, the through hole 1 has a columnar shape, but may have an elliptic column shape or a polygonal column shape. The polygonal prism shape is not particularly limited, and may be, for example, a triangular prism shape, a quadrangular prism shape, a pentagonal prism shape, a hexagonal prism shape, or the like. The through-hole 1 having a columnar shape, an elliptic column shape, or a polygonal column shape means that the through-hole 1 has a circular shape, an elliptical shape, or a polygonal shape in a front view. It is peculiar in the terminal component 100 of the present embodiment that the through hole 1 has an elliptic column shape or a polygonal column shape (particularly a polygonal column shape). More specifically, since the terminal component 100 of this embodiment is manufactured by forging as described later, the through hole 1 can have various shapes as described above. Since the conventional terminal component is manufactured by cutting, it is impossible to form the through hole 1 into an elliptic column shape or a polygonal column shape (particularly a polygonal column shape). The through-hole having the elliptic column shape or the polygonal column shape has an effect that it can be formed with a wider opening area in the same rectangular area and the same rectangular area as that of the through-hole having the columnar shape.

The size (for example, the maximum size) H2 in the height direction of the through hole 1 (see FIG. 2A) is not particularly limited as long as the electric wire can be passed through, and may be appropriately determined according to the size of the electric wire. The dimension H2 of the through hole 1 in the height direction is normally 0.2 × H1 (mm) to 0.8 × H1 (mm), particularly 0.4 ×, with respect to the dimension H1 of the main body 10 in the height direction. It may be H1 (mm) to 0.6 × H1 (mm). The height direction may be the axial direction X of the rod-shaped convex portion 20.
The height H1 of the main body 10 can be appropriately determined according to the application and size of the electronic device to be connected. For example, when the size H1 of the main body 10 in the height direction is a size corresponding to the connection of an electric wire to a relatively small electronic device (for example, electronic device for home electric appliances) such as an outlet and a switch, It may be 3 to 30 mm, especially 4 to 20 mm.

The size (for example, the maximum size) W2 in the width direction of the through hole 1 (see FIG. 2A) is not particularly limited as long as the electric wire can be passed through, and may be appropriately determined according to the size of the electric wire. The dimension W2 in the width direction of the through hole 1 is usually 0.4 × W1 (mm) to 0.9 × W1 (mm), particularly 0.6 × W1 (with respect to the dimension W1 in the width direction of the main body 10. mm) to 0.9 × W1 (mm). When the through hole 1 has a columnar shape, in the through hole 1, the dimension W2 in the width direction is equal to the dimension H2 in the height direction.

The dimension in the depth direction of the through hole 1 is usually equal to the dimension D1 in the depth direction of the main body 10 described later.

The size W1 of the main body 10 in the width direction can be appropriately determined according to the application and size of the connected electronic device. For example, when the widthwise dimension W1 of the main body 10 is a dimension corresponding to the connection of an electric wire to a relatively small electronic device (for example, electronic device for home electric appliances) such as an outlet and a switch, normally, It may be 2 to 20 mm, especially 3 to 15 mm. In the body portion 10, the widthwise dimension W1 and the heightwise dimension H1 usually satisfy the following relationship:
W1 ≦ H1; or especially W1 <H1 ≦ 2 × W1.

The cylindrical recess 2 intersects with the through hole 1 inside the main body 10. For example, as shown in FIG. 2E, the tubular concave portion 2 is a hole formed along the axial direction X of the rod-shaped convex portion 20 while intersecting with the through hole 1 inside the main body portion 10 in a cross-sectional view. The bottom surface 11 of the main body portion 10 opens downward. The tubular concave portion 2 defines the inner peripheral surface of the main body portion 10 in a cross-sectional view.

The tubular shape of the tubular concave portion 2 means that the inside is hollow. The tubular concave portion 2 is normally opened downward at least on the bottom surface 11 of the main body portion 10, and may be opened upward on the upper surface 12 of the main body portion 10, or may not be opened. Good. As shown in FIG. 1 and FIG. 2A to FIG. 2E, from the viewpoint that the metal flow is further and sufficiently continuously formed along the wall surface, cracking of the crimped portion is more sufficiently suppressed. It is preferable that the cylindrical recess 2 is opened downward on the bottom surface 11 of the main body 10 and is opened upward on the upper part of the main body 10.

The cylindrical recess 2 has a circular shape in FIGS. 1 and 2C in a bottom view, but is not limited to this, and has, for example, a polygonal shape such as a triangular shape, a quadrangular shape, a pentagonal shape, or a hexagonal shape. You may have. The shape of the cylindrical recess 2 is the shape of the inner wall (or inner peripheral surface) of the main body 10 in which the cylindrical recess 2 is defined, as viewed from below. From the viewpoint of “sufficiently high-reliable connection (electrical and mechanical) between the electric wire and the terminal component” by the electric wire pressing screw 7, which will be described later, the cylindrical concave portion 2 preferably has a circular shape. . When the cylindrical recess 2 has a circular shape, the cylindrical recess 2 may also be referred to as a cylindrical recess 2. As long as the inner wall (or the inner peripheral surface or its contour line) of the main body 10 in which the cylindrical recess 2 is defined has a circular bottom view shape, the cylindrical recess 2 has a bottom view shape of the outer wall of the main body part 10. However, as shown in FIG. 1 and FIG. 2C, it includes a quadrangular shape (particularly a square shape) and a circular shape.

The cylindrical recess 2 is usually a screw hole having a thread groove. Specifically, as shown in FIGS. 1, 2C and 2E, the cylindrical recess 2 is opened downward on the bottom surface 11 of the main body portion 10, and the wire pressing screw 7 is inserted from the lower side. It can be screwed. More specifically, as shown in FIG. 2E, the tubular recess 2 has a screw portion 15 (for example, a screw groove 15a and a screw thread 15b described later) that is fitted with a screw 7 for pressing an electric wire described later. 2E, the tubular concave portion 2 has a threaded portion 15 at its lower end portion (for example, a lower end portion on the inner peripheral surface thereof), but the present invention is not limited to this, and for example, the threaded portion is provided. You may have 15 more upwards. The tubular recess 2 is, as shown in FIG. 2E, from the viewpoint of “more sufficiently reliable connection (electrical and mechanical) between the electric wire and the terminal component” by the electric wire pressing screw 7 described later. It is preferable that the threaded portion 15 is provided in the region from the lower end to the dimension H30 in the height direction. The dimension H30 in the height direction of the threaded portion 15 is usually 0.1 × H1 (mm) to 0.4 × H1 (mm), especially 0.2 × with respect to the dimension H1 in the height direction of the main body 10. It may be H1 (mm) to 0.3 × H1 (mm).

Even when the cylindrical recess 2 has a circular shape or a polygonal shape, the cylindrical recess 2 may be a screw hole that fits with the wire pressing screw 7. For example, when the tubular recess 2 has a circular shape, the inner wall (or inner peripheral surface) of the main body 10 defining the tubular recess 2 is at least partially screwed into the screw groove 7 (and The tubular recess 2 may be fittable with the wire pressing screw 7 by having a screw thread. Further, for example, when the tubular recess 2 has a polygonal shape, the inner wall (or inner peripheral surface) of the main body 10 that defines the tubular recess 2 is connected to the wire pressing screw 7 at the portion where the inner wall (or the inner peripheral surface) contacts the wire pressing screw 7. By having the thread groove (and the thread) to be fitted, the tubular recess 2 may be fittable with the wire pressing screw 7.

The dimension (for example, the maximum dimension) H3 of the cylindrical recess 2 in the height direction (see FIG. 2E) allows the electric wire to pass through the through hole 1, and the screw 7 for pressing the electric wire is inserted into the cylindrical recess 2 (and There is no particular limitation as long as the electric wire can be pressed by (screw tightening). The dimension H3 of the cylindrical recess 2 in the height direction is usually 0.4 × H1 (mm) to 0.9 × H1 (mm), particularly 0.6, with respect to the dimension H1 of the main body 10 in the height direction. It may be × H1 (mm) to 0.9 × H1 (mm).

The widthwise dimension (for example, the maximum dimension) W3 (see FIG. 2C) of the cylindrical recess 2 allows the electric wire to pass through the through hole 1, and allows the wire pressing screw 7 to be inserted into the cylindrical recess 2 (and the screw). There is no particular limitation as long as the electric wire can be pressed by (tightening). The widthwise dimension W3 of the cylindrical recess 2 is usually 0.4 × W1 (mm) to 0.9 × W1 (mm), particularly 0.6 × W1 with respect to the widthwise dimension W1 of the main body 10. It may be (mm) to 0.9 × W1 (mm).

The dimension (for example, the maximum dimension) D3 (see FIG. 2C) in the depth direction of the cylindrical recess 2 allows the electric wire to pass through the through hole 1, and allows the wire pressing screw 7 to be inserted into the cylindrical recess 2 (and the screw). There is no particular limitation as long as the electric wire can be pressed by (tightening). The dimension D3 of the cylindrical recess 2 in the depth direction is usually 0.4 × D1 (mm) to 0.9 × D1 (mm), particularly 0.6 × D1 with respect to the dimension D1 of the body 10 in the depth direction. It may be (mm) to 0.9 × D1 (mm). When the cylindrical recess 2 has a circular shape as viewed from below, in the cylindrical recess 2, the dimension D3 in the depth direction is equal to the dimension W3 in the width direction.
The dimension D1 of the main body 10 in the depth direction can be appropriately determined according to the application and dimensions of the connected electronic device. For example, when the dimension D1 in the depth direction of the main body 10 is a dimension corresponding to the connection of the electric wire to a relatively small electronic device (for example, electronic device for home electric appliances) such as an outlet and a switch, normally, It may be 2 to 20 mm, especially 3 to 15 mm. In the body portion 10, the dimension D1 in the depth direction and the dimension H1 in the height direction usually satisfy the following relationship:
D1 ≦ H1; or especially D1 <H1 ≦ 2 × D1.

The terminal component 100 of the present embodiment includes a rod-shaped convex portion 20 integrally formed with the main body portion 10 at one end in the height direction of the main body portion 10 having the through hole 1 and the cylindrical concave portion 2 described above. There is. The rod shape means a shape having a length direction or a height direction in one direction (for example, a straight line shape). In the present embodiment, the convex portion 20 may have a hollow shape or a solid shape. The hollow form is a form in which the convex portion 20 has a cavity inside and the cavity is opened toward at least one of the upper side and the lower side (for example, at least the upper side). For example, when the convex portion 20 having a hollow shape is opened only downward, the shape of the convex portion 20 corresponds to a so-called dowel shape. In the hollow form, the cavity may be open not only in the upward direction but also in the downward direction as shown in FIG. 2E, or may be opened only in the upward direction, or You may open only in the downward direction. The rod-shaped convex portion 20 has a “more sufficiently reliable connection (electrical and mechanical) between an electronic device and a terminal component” by the rod-shaped convex portion 20 and “crimping based on a relatively small force. From the viewpoint of the balance between "simple connection of electronic device and terminal component by", the rod-shaped convex portion 20 preferably has a hollow shape, and more preferably has a hollow shape in which the internal cavity is opened upward and downward. Have Note that the convex portion means a portion that further protrudes or extends upward from the upper surface 12 of the main body portion 10 in a front view.

The rod-shaped convex portion 20 has a circular shape in FIG. 2B in a top view, but is not limited to this, and has, for example, a polygonal shape such as a triangular shape, a quadrangular shape, a pentagonal shape, or a hexagonal shape. Good. The shape of the rod-shaped protrusion 20 is a shape of a contour that defines the appearance of the rod-shaped protrusion 20 in a top view. It is preferable that the rod-shaped protrusion 20 has a circular shape from the viewpoint of “more sufficiently reliable connection (electrical and mechanical) between the electronic device and the terminal component” by the rod-shaped protrusion 20. . When the rod-shaped protrusion 20 has a circular shape and a hollow shape, the rod-shaped protrusion 20 may also be referred to as a cylindrical protrusion 20. In the cylindrical convex portion 20, when the cavity inside thereof is open upward and downward as shown in FIG. 2E as viewed in a plan view, or when it is opened only upward, it is downward. It also includes the case where it is opened only toward.

With respect to the dimension (for example, the maximum dimension) H4 in the height direction of the rod-shaped convex portion 20 (see FIGS. 2A and 2E), the rod-shaped convex portion 20 achieves electrical and mechanical connection between the electronic device and the terminal component. There is no particular limitation. The dimension H4 of the rod-shaped convex portion 20 in the height direction is normally 0.1 × H1 (mm) to 0.6 × H1 (mm), particularly 0.15, with respect to the dimension H1 of the body portion 10 in the height direction. It may be × H1 (mm) to 0.4 × H1 (mm).

The widthwise dimension (for example, the maximum dimension) W4 (see FIG. 2B) of the rod-shaped protrusion 20 is not particularly limited as long as the rod-shaped protrusion 20 achieves electrical and mechanical connection between the electronic device and the terminal component. . The widthwise dimension W4 of the rod-shaped convex portion 20 is normally 0.3 × W1 (mm) to 0.9 × W1 (mm), particularly 0.4 × W1 with respect to the widthwise dimension W1 of the main body 10. It may be (mm) to 0.8 × W1 (mm).

The dimension (for example, the maximum dimension) D4 in the depth direction of the rod-shaped protrusion 20 (see FIG. 2B) is not particularly limited as long as the rod-shaped protrusion 20 achieves electrical and mechanical connection between the electronic device and the terminal component. . The dimension D4 of the rod-shaped convex portion 20 in the depth direction is normally 0.3 × D1 (mm) to 0.9 × D1 (mm), particularly 0.4 × D1 with respect to the dimension D1 of the body portion 10 in the depth direction. It may be (mm) to 0.8 × D1 (mm). When the rod-shaped protrusion 20 has a circular shape as viewed from above, the dimension D4 in the depth direction of the rod-shaped protrusion 20 is equal to the dimension W4 in the width direction.

When the rod-shaped convex portion 20 has a hollow shape as shown in FIG. 2B in a top view, the thickness (wall thickness) of the rod-shaped convex portion 20 is determined by the rod-shaped convex portion 20 so that the electronic device and the terminal component are electrically connected to each other. There is no particular limitation as long as a mechanical and mechanical connection is achieved. The thickness (wall thickness) of the rod-shaped convex portion 20 can be appropriately determined according to the application and size of the electronic device to be connected. For example, when the thickness (thickness) of the rod-shaped convex portion 20 is a dimension corresponding to the connection of the electric wire to a relatively small electronic device (for example, electronic device for home electric appliances) such as an outlet and a switch, it is usually , 0.1 to 2 mm, in particular 0.5 to 1 mm.

In the terminal component 100 of the present embodiment, in the rod-shaped convex portion 20, in the wall portion along the height direction of the convex portion 20, the metal flow is continuous along the surface of the wall portion. That is, the rod-shaped convex portion 20 has a continuous metal flow along the wall surface (or its contour line) in the wall portion along the height direction of the convex portion 20 in a sectional view. Thereby, cracking of the crimped portion (for example, the bar-shaped convex portion 20 ′ crimped in FIG. 6A described later) is more sufficiently suppressed. The wall portion along the height direction of the convex portion 20 is a wall portion along the height direction of the convex portion 20 in cross section, and more specifically, the outer wall surface (that is, the outer peripheral side surface) of the convex portion 20 in cross sectional view. The surface portion (or surface layer portion) 201 on the 200 side (see FIG. 2E). In the terminal component 100 of the present embodiment, as shown in FIG. 2E, in the wall portion 201 along the height direction of the convex portion 20 in a cross-sectional view, as shown in FIG. 2E, the metal flow has a surface of the wall portion (that is, an outer wall surface or It is continuous along the outer peripheral side surface 200). The metal flow being continuous along the wall surface (that is, the outer wall surface or the outer peripheral side surface 200) means that the wall surface (that is, the outer wall surface or the outer peripheral side surface) (or its contour line) 200 in the cross-sectional view. In parallel with this, it means that a continuous metal flow is observed. For example, in the cross-sectional view, when the wall surface (that is, the outer wall surface or the outer peripheral side surface) (or its contour line) 200 is a straight line as shown in FIG. 2E, as shown in a partially enlarged view of FIG. 2E. , The metal flow is observed as a continuous straight line parallel to the straight line. Continuous means "uninterrupted".

▽ Metal flow is a grain flow line or fiber flow, and more specifically, it is a flow line of a crystal structure or grain boundary that appears when a metal crystal structure is deformed and stretched in the forging direction by forging.

In the terminal component 100 of this embodiment, the convex portion 20 has a continuous metal flow over the entire wall portion along the height direction of the convex portion 20 (for example, the entire length of the convex portion 20 in the height direction). It doesn't have to be. In the terminal component 100 of the present embodiment, for example, as shown in the partially enlarged view of FIG. 2E, the convex portion 20 is a wall in any one visual field of the microscope image (SEM) at the observation point A in cross-sectional view. It suffices to have one or more, for example, 1 to 100, preferably 10 to 100, metal flows continuous in the direction parallel to the part surface (that is, the outer wall surface or the outer peripheral side surface) (or its contour line) 200. . The observation point A is a portion (that is, a portion) where the height from the upper surface 12 of the main body 10 is 0.8 × H4 (mm) when the dimension of the convex portion 20 in the height direction is H4 (mm). . The area in one visual field in which the number of metal flows should be observed is an area from the wall surface (that is, the outer wall surface or the outer peripheral side surface) (or its contour line) 200 to 200 μm as the depth F1 (see FIG. 2E). . In such a region, a terminal component in which no continuous metal flow is observed in a direction parallel to the wall surface (that is, the outer wall surface or the outer peripheral side surface) (or the contour line thereof) 200 is a terminal component and an electronic device. , It is not possible to make electrical and mechanical connections with sufficiently high reliability. Parallel means a metal flow (that is, a line) and its surface (or its contour line) whose angle with the target surface (or its contour line) is ± 3 °, particularly ± 1 °, in a cross-sectional view. ). Even if the metal flow is slightly curved, the angle between the tangent line of the curved portion and the surface (or its contour line) may be within ± 3 °, particularly within ± 1 °.

In the present embodiment, in the terminal component 100 according to the preferred embodiment X, from the viewpoint of “more sufficiently reliable connection (electrically and mechanically) between the electronic device and the terminal component” by the rod-shaped convex portion 20. At the boundary between the rod-shaped convex portion 20 and the main body portion 10, the metal flow is continuous along the surfaces of these wall portions. That is, the boundary portion between the rod-shaped convex portion 20 and the main body portion 10 includes a wall portion along the height direction of the convex portion 20 and a wall portion along the upper surface (or its contour line) 12 of the main body portion 10 in a sectional view. At, there is a continuous metal flow along these wall surfaces (or their contours). The wall portion along the height direction of the convex portion 20 is a wall portion along the height direction of the convex portion 20 in cross section, and more specifically, the outer wall surface (that is, the outer peripheral side surface) of the convex portion 20 in cross sectional view. The surface portion 201 on the 200 side (see FIG. 2E). The wall portion along the upper surface (or its contour line) 12 of the main body portion 10 is a wall portion along the upper surface (or its contour line) 12 of the main body portion 10 in cross section, and more specifically, the main body in the cross sectional view. It is a surface portion 121 (see FIG. 2E) on the upper surface 12 side of the portion 10. In the terminal component 100 of the present embodiment, as shown in FIG. 3A, at the boundary between the wall portion 201 along the height direction of the convex portion 20 and the wall portion 121 along the upper surface 121 of the main body portion 10 in a cross-sectional view. , The metal flow is continuous along these wall surfaces (that is, the outer wall surface or the outer peripheral side surface 200 and the upper surface 12 of the main body 10). The metal flow being continuous along the outer wall surface or the outer peripheral side surface 200 and the upper surface 12 of the main body 10 means that the metal flow is continuous in parallel with the outer wall surface or the outer peripheral side surface (or its contour line) 200 in the cross-sectional view. It means that the metal flows and the continuous metal flows are observed in parallel with the upper surface (or the contour line 12) of the main body portion 10, and the metal flows are further continuous with each other. For example, in the cross-sectional view, the outer wall surface or the outer peripheral side surface (or its contour line) 200 is a straight line parallel to the vertical direction as shown in FIG. 3A, and the upper surface (or its contour line) 12 of the main body 10 is horizontal. In the case of straight lines parallel to the directions, the metal flow is observed as right-angle forming lines (ie, right-angle lines) parallel to these straight lines and continuous, as shown in the enlarged view of FIG. 3A. FIG. 3A shows an example of an enlarged schematic view at an observation point B in the schematic sectional view of FIG. 2E.

In the terminal component 100 according to Preferred Embodiment X of the present embodiment, the boundary portion between the rod-shaped convex portion 20 and the main body portion 10 is, for example, as shown in FIGS. 2E and 3A, the microscope at the observation point B in cross-sectional view. In any one visual field of the photograph (SEM), the direction parallel to the wall surface (that is, the outer wall surface or the outer peripheral side surface) (or its contour line) 200 and the upper surface (or its contour line) 12 of the main body 10 are parallel. It suffices to have one or more metal flows continuous in the direction, for example, 1 to 100, preferably 10 to 100. The observation point B is at a point (for example, a bending point) where the wall surface (that is, the outer wall surface or the outer peripheral side surface) (or its contour line) 200 and the upper surface (or its contour line) 12 of the main body 10 are connected (for example, a bending point) ( That is, part). The region in one visual field in which the number of metal flows is to be observed is deep from the wall surface (that is, the outer wall surface or the outer peripheral side surface) (or its contour line) 200 and the upper surface (or its contour line) 12 of the main body 10 respectively. Areas G up to 200 μm as the heights F2 and F3 (see FIG. 3A) (areas based on broken lines in FIG. 3A)

In the present embodiment, the terminal component 100 according to the more preferable embodiment Y from the viewpoint of "a much more highly reliable connection (electrical and mechanical) between the electronic device and the terminal component" by the rod-shaped convex portion 20. In the main body portion 10, in the wall portion along the upper surface (or its contour line) 12, the metal flow is continuous along the surface of the wall portion. That is, the main body part 100 has a continuous metal flow along the wall surface (or its contour line) 12 in the wall part along the upper surface (or its contour line) 12 in a sectional view. The wall portion along the upper surface (or its contour line) 12 is a wall portion along the upper surface (or its contour line) 12 in cross-sectional view, and more specifically, the surface on the upper surface 12 side in the main body portion 10 in cross-sectional view. The part 121 (see FIG. 2E). In the terminal component 100 of the present embodiment, in a sectional view, in the wall portion 121 along such an upper surface (or its contour line) 12, as shown in FIG. 3B, the metal flow has the upper surface (or its contour line). It is continuous along 12. The metal flow being continuous along the upper surface (or its contour line) 12 means that a continuous metal flow is observed in parallel with the upper surface (or its contour line) 12 in the cross-sectional view. Is the meaning. For example, in the cross-sectional view, when the upper surface (or its contour line) 12 is a straight line as shown in FIG. 3B, it is a continuous straight line parallel to the straight line as shown in a partially enlarged view of FIG. 3B. Metal flow is observed. FIG. 3B shows an example of an enlarged schematic diagram at an observation point C in the schematic sectional view of FIG. 2E.

In the terminal component 100 according to the more preferable embodiment Y of the present embodiment, the main body portion 10 is, for example, as shown in FIGS. 2E and 3B, any one of the micrographs (SEM) at the observation point C in the cross-sectional view. It is sufficient that one visual field has one or more, for example, 1 to 100, preferably 10 to 100, continuous metal flows in a direction parallel to the upper surface (or its contour line) 12. The observation point C has a distance W5 (see FIG. 2E) of 0.1 × from the outer peripheral surface of the main body 10 on the upper surface 12 of the main body 10 when the dimension in the width direction of the main body 10 is W1 (mm). It is a position (that is, a part) at W1 (mm). The region in one visual field where the number of metal flows should be observed is the region from the upper surface (or its contour line) 12 to a depth F4 (see FIG. 3B) up to 200 μm. In such a region, the terminal component in which no continuous metal flow is observed in the direction parallel to the upper surface (or the contour line thereof) 12 can be electrically and sufficiently reliable between the terminal component and the electronic device. And they cannot be mechanically connected.

In the present disclosure, the terminal component 100 according to the further preferred embodiment Z from the viewpoint of “a much more sufficiently reliable connection (electrical and mechanical) between the electrical wire and the terminal component” by the wire pressing screw 7. In, the cylindrical recess 2 has a continuous metal flow along the surface of the thread groove (and thread). Specifically, as shown in FIG. 3C, the tubular recess 2 has a continuous metal flow along the surface 150 of the screw groove 15a (and the screw thread 15b) as shown in FIG. 3C. In the terminal component 100 of the present embodiment, the metal flow is continuous along the surface (or its contour line) 150 of the thread groove 15a (and the screw thread 15b) as shown in FIG. 3C in a sectional view. . The metal flow being continuous along the surface (or the contour line) 150 of the thread groove 15a (and the thread 15b) means that the surface (or the thread 15b) of the thread groove 15a (and the thread 15b) in the sectional view. This means that a continuous metal flow is observed substantially parallel to the contour line 150. FIG. 3C shows an example of an enlarged schematic view of the thread groove portion and the screw thread portion in the schematic cross-sectional view of FIG. 2E.

In a further preferred embodiment Z of the present embodiment, the threaded portion 15 is, for example, as shown in FIG. 3C, any one thread groove 15a in a micrograph (SEM) in cross section and one thread groove 15a arranged at both ends thereof. In the screw thread 15b, the surface (or its contour line) 150 may have one or more metal flows, which are continuous substantially in parallel, for example, 1 to 100, preferably 10 to 100. The region where the number of metal flows should be observed is the region J from the crest of the screw thread 15b to the specific depth. The specific depth is 200 μm as the depth F5 (see FIG. 3C) from the thread groove 15a.

In the terminal component 100 of this embodiment, the main body portion 10 and the rod-shaped convex portion 20 (and the screw portion 15 if desired) are usually integrally formed.

The constituent material of the terminal component 100 of the present embodiment is not particularly limited, and examples thereof include metal materials such as brass, aluminum, aluminum alloys, copper, copper alloys, iron, iron alloys, and stainless steel. The constituent materials of the terminal parts are "a much more reliable connection (electrical and mechanical) between the electric wire and the electronic device via the terminal parts" and "further improvement of the electrical conductivity of the terminal parts". From the viewpoint of a balance between "and a reduction in working force due to low yield stress (for example, simple caulking process)", brass and copper are preferable.

The metal (particularly brass and copper) that constitutes the terminal component 100 of the present embodiment is a "sufficiently highly reliable connection (electrical connection between the electric wire and the electronic device via the terminal component) by controlling the metal flow. And mechanically), it is preferable that the metal is a non-free-cutting metal. Metals are generally classified into free-cutting metals and non-free-cutting metals. The free-cutting metal is a metal or alloy containing a free-cutting material for improving machinability. A non-free-cutting metal is a metal that does not contain a free-cutting material, or has a small amount even if it is included. Examples of free-cutting materials include lead, bismuth, sulfur and tin. The content of the free-cutting material in the non-free-cutting metal is usually less than 0.4% by weight, preferably 0.2% by weight or less, and more preferably 0.1% by weight or less. The lower limit of the content of free-cutting material is usually 0% by weight.

The constituent material of the terminal parts is non-free cutting from the viewpoint of "a much more highly reliable connection (electrical and mechanical) between the electric wire and the electronic device via the terminal parts" by controlling the metal flow. Preferred is brass and / or non-free-cutting copper.

The terminal component 100 of the present embodiment is electrically and mechanically connected to the electronic device (particularly, the blade receiving structure 90 of the outlet) by the rod-shaped convex portion 20 and electrically and mechanically with the electric wire by the screw 7 for pressing the electric wire. Secure connection with sufficiently high reliability. Therefore, the terminal component 100 of the present embodiment can achieve the electrical and mechanical connection between the electric wire and the electronic device (particularly, the blade receiving structure 90 of the outlet) with sufficiently high reliability.

In the terminal component 100 of the present embodiment, when the connection between the terminal component and the outlet (particularly, the blade receiving structure thereof) is achieved by crimping the rod-shaped convex portion, cracks (or cracks) in the crimped portion can be more sufficiently achieved. Can be suppressed. For this reason, the terminal component 100 of the present embodiment has a higher crimping strength due to the rod-shaped convex portion 20 than a conventional product having the same shape and the same constituent material. Therefore, the terminal component 100 of this embodiment can also be expected to have the effect of improving the efficiency for achieving the same crimp strength as the conventional product having the same shape and the same constituent material. That is, in the terminal component 100 of the present embodiment, from the viewpoint of achieving the same caulking strength as the conventional product having the same shape and the same constituent material, the thickness of the rod-shaped convex portion 20 or the diameter of the rod-shaped convex portion 20 is reduced. Can be expected to be small and / or the length of the rod-shaped convex portion 20 can be shortened.

[Method of manufacturing terminal parts]
The terminal component of this embodiment can be manufactured by a method including a forging step and a through hole forming step.

(Forging process)
In the forging step, a tubular concave portion and a rod-shaped convex portion are formed by forging on a wire rod piece obtained by cutting the wire rod. For example, a metal terminal precursor having a cylindrical concave portion and a rod-shaped convex portion is formed by forging.
Specifically, the forging step includes, for example, a wire rod cutting process, a forward extrusion forging process, an upsetting forging process, and a backward extrusion forging process. When the terminal component 100 includes the rod-shaped convex portion 20 having the hollow shape as described above, the forging step further includes bottom surface punching processing.

In the wire rod cutting process, a wire rod piece P1 as shown in FIG. 4 is prepared by cutting the wire rod. FIG. 4 shows an example of a flow chart showing the method for manufacturing the terminal component of the present embodiment.

In the forward extrusion forging process, as shown in FIG. 5A, the wire precursor P1 is extruded in the die 50 by the extruded material 51 to extrude the terminal precursor material in the extruding direction to form the terminal precursor P2. obtain. FIG. 5A shows an example of the forward extrusion forging process in the method of manufacturing a terminal component according to this embodiment.

In the upsetting forging process, as shown in FIG. 5B, the terminal precursor P2 is pressed from above and below between the lower die 60 and the upper die 61, thereby increasing the cross-sectional area and height. Is reduced and the overall shape is adjusted to obtain the terminal precursor P3. As a result, the rod-shaped convex portion 20 having a shape close to the desired external shape is formed. FIG. 5B shows an example of upsetting forging processing in the method of manufacturing a terminal component according to this embodiment.

▽ Upgrade forging process may be performed in multiple stages. For example, with the upsetting forging process described above as the first stage, the upsetting forging process in the second stage is performed. The method of the second-stage upsetting forging process is to apply to the terminal precursor P3, and use a lower mold and an upper mold different in shape from the lower mold and the upper mold in the first-stage upsetting forging process. Other than the above, the method is the same as the method of the first-stage upsetting forging treatment. Thereby, the cross-sectional area of the terminal precursor is further increased, the height is further reduced, and the overall shape is further adjusted to obtain the terminal precursor P4. At this time, the rod-shaped convex portion 20 that is more similar to the desired external shape is formed.

In the backward extrusion forging process, as shown in FIG. 5C, the terminal precursor P4 is extruded in a direction opposite to the extruding direction by pressurizing the terminal precursor P4 with the extruding material 71 in the mold 70, The cylindrical recess 2 is formed. As a result, the terminal precursor P5 is obtained. FIG. 5C shows an example of the backward extrusion forging process in the method for manufacturing the terminal component of the present embodiment.

When performing the bottom surface punching process, as shown in FIG. 5D, the terminal precursor P5 is pressed by the extruding material 81 in the mold 80, whereby the bottom surface portion of the terminal precursor material is extruded in the extruding direction. Punching is performed to obtain a terminal precursor P5 '. FIG. 5D shows an example of bottom surface punching processing in the method of manufacturing a terminal component according to this embodiment.

(Through hole forming process)
The through hole 1 that intersects with the cylindrical recess 2 is formed in the terminal precursor P5 or P5 ′. The formation of the through hole 1 is not particularly limited and may be performed by cutting or forging, for example. When the terminal component is made of non-free-cutting metal, the through hole 1 is preferably formed by forging. This is because, for the processing of non-free-cutting metal, forging is more suitable than cutting for the purpose of suppressing deformation of the terminal component.

When forming the through hole 1 by forging, so-called punching is performed. The punching process is a 90 ° direction punching process, and the punching process is performed from a direction of 90 ° with respect to the axial direction X of the rod-shaped convex portion 20. For example, by pressing a predetermined portion of the terminal precursor (particularly the main body portion precursor) with an extruding material, the terminal precursor material in the portion is pushed away to form the through hole 1. At this time, from the viewpoint of suppressing deformation, it is preferable to insert a mold (for example, a core metal) into the cylindrical recess 2.

(Rolling tap processing)
When the terminal component 100 of this embodiment has the threaded portion 15, the method for manufacturing the terminal component further includes a rolling tap step. The rolling tap step may be performed between the forging step and the through hole forming step, or may be performed after the through hole forming step.

The threaded portion 15 (particularly the thread groove 15a and the thread 15b) is formed by rolling tap processing. The rolling tap processing is one of the processing methods for forming the thread groove 15a and the thread crest 15b, and the inner peripheral portion of the cylindrical recess 2 is plastically deformed by using a rolling tap (rolling tool) to form the thread groove. It is a method of crushing a portion to be 15a (or a valley), bringing the extruded one closer, and raising it to form a screw thread 15b. When the thread groove 15a and the thread ridge 15b are formed by the rolling tap processing, work hardening due to plastic deformation occurs, and the thread ridge portion has higher hardness. As a result, the tightening strength of the wire pressing screw 7 is improved.

In the method for manufacturing the terminal component of the present embodiment described above, the through-hole forming process is performed after the forging process is performed, but as long as the terminal component of the present embodiment can be manufactured, the through-hole forming process is performed. You may perform a hole formation process. That is, the through hole forming step may be performed during the forging step. For example, the through hole forming step may be performed in any of the following aspects of the forging step;
(Aspect A) A through hole forming step is performed between the wire cutting process and the forward extrusion forging process;
(Aspect B) A through hole forming step is performed between the forward extrusion forging process and the upsetting forging process;
(Aspect C) A through hole forming step is performed between the upsetting forging process and the backward extrusion forging process;
(Aspect D) A through hole forming step is performed between the backward extrusion forging process and the bottom face punching process.

More specifically, since the cylindrical recess 2 is formed in the backward extrusion forging process, in the above-mentioned modes A to C, the cylindrical recess 2 is formed after the through hole 1 is formed.

In the above modes A to D, the rolling tapping step may be performed after any treatment or step as long as the cylindrical recess 2 is formed by the backward extrusion forging treatment. That is, the rolling tap process may be performed at any timing after the backward extrusion forging process.

[Electronics]
The first embodiment of the present disclosure also provides an electronic device including the terminal component according to the first embodiment described above. The electronic device may be any electronic device that requires electrical and mechanical connection with an electric wire by a terminal, and examples thereof include household electronic devices such as outlets and switches, and breakers.

(Outlet)
In the outlet of this embodiment, as shown in FIGS. 6A to 6C, the insertion blades of the plug (for example, the

insertion blades

91 and 92 in FIGS. 6D and 6E) are fixed with an appropriate force so as to be removable. A blade receiving structure 90 for. The blade receiving structure 90 has a hole (not shown) for receiving the rod-shaped protrusion 20 of the terminal component 100. The rod-shaped protrusion 20 of the terminal component 100 is inserted into such a hole, and the rod-shaped protrusion 20 is caulked to electrically and mechanically connect the terminal component 100 and the outlet (particularly, the blade receiving structure 90). Connection is achieved. In the terminal component 100 of the present embodiment, cracks (or cracks) in the crimped portion 20 ′ (that is, the crimped bar-shaped convex portion) are more sufficiently suppressed, so the outlet of the present embodiment (particularly the terminal component). Has a sufficiently high crimping strength. On the other hand, although the electric wire is not shown in FIGS. 6A to 6C, normally, with the electric wire passed through the through hole 1, the electric wire pressing screw 7 shown in FIG. 6F is inserted into the cylindrical recess and screwed. To do. Thereby, the electric wire is pressed and fixed by the electric wire pressing screw 7, and the electrical and mechanical connection between the terminal component 100 and the electric wire is achieved. As described above, in the electronic device (particularly, the outlet) of the present embodiment, the electrical and mechanical connection between the terminal component 100 and the electronic device (particularly, the blade receiving structure 90 of the outlet) and the connection between the terminal component 100 and the electric wire. Since the electrical and mechanical connection is achieved with sufficiently high reliability, the electrical and mechanical connection between the electric wire and the electronic device (particularly, the blade receiving structure 90 of the outlet) via the terminal component 100 is also performed. Achieved with much higher reliability. FIG. 6A shows a schematic sketch of an example of a blade receiving structure of an outlet including the terminal component of this embodiment. FIG. 6B shows a schematic top view of the blade receiving structure of the outlet shown in FIG. 6A. 6C shows a schematic right side view of the blade receiving structure of the outlet shown in FIG. 6A. FIG. 6F is a schematic diagram of the wire pressing screw that constitutes the blade receiving structure of the outlet shown in FIG. 6A.

The blade receiving structure 90 of the outlet includes a blade receiving spring for fixing with a proper force so that the inserting blade of the plug can be inserted and removed in the inserting and removing direction (the x direction in FIG. 6A). The blade receiving structure 90 of the outlet presses the insert blade in two mutually perpendicular directions (y direction and z direction in FIG. 6A) from the viewpoint of more sufficiently fixing the insert blade of the plug with a simpler structure. And a first blade receiving spring 90a and a second blade receiving spring 90b so as to be fixed. The first blade receiving spring 90a and the second blade receiving spring 90b are different from each other in the pressing direction of the plug with respect to the insertion blade.

As shown in FIGS. 6A to 6D, the first blade receiving spring 90a accommodates the two

insert blades

91 and 92 of the plug individually and in the direction adjacent to the two insert blades (the y direction in FIG. 6A). Press and secure the two insert blades. In FIG. 6D, 90a1 is a space for accommodating and pressing the insert blade 91, and 90a2 is a space for accommodating and pressing the insert blade 92. FIG. 6D is a schematic view of the first blade receiving spring that constitutes the blade receiving structure of the outlet shown in FIG. 6A.

As shown in FIG. 6A to FIG. 6C and FIG. 6E, the second blade receiving spring 90b is arranged such that one of the two insertion blades (particularly the insertion blade 91) is adjacent to the insertion / extraction direction (x direction). It is pressed and fixed in the direction (z direction) perpendicular to the (y direction) as well. FIG. 6E is a schematic view of a second blade receiving spring that constitutes the blade receiving structure of the outlet shown in FIG. 6A.

When the blade receiving structure 90 includes the first blade receiving spring 90a and the second blade receiving spring 90b, holes are formed in the overlapping portions of these two blade receiving springs, and the rod-shaped protrusions 20 are formed in these holes. By inserting and caulking, not only the electrical and mechanical connection between the blade receiving structure 90 and the terminal component 100 but also the coupling of the two blade receiving springs can be achieved. The terminal component 100 of the present embodiment is particularly useful when the electronic device is an outlet including the blade receiving structure 90 including the first blade receiving spring 90a and the second blade receiving spring 90b. When a conventional terminal component is used, if the rod-shaped convex portion is crimped, cracks (or cracks) are likely to occur in the crimped portion. With such a rod-shaped convex portion of the conventional terminal component, not only electrical and mechanical connection between the blade receiving structure and the terminal component but also connection between the first blade receiving spring and the second blade receiving spring can be achieved. Further, cracks (or cracks) occur more easily in the crimped portion. When the terminal component 100 of this embodiment is used, not only the blade receiving structure 90 and the terminal component 100 are electrically and mechanically connected by the rod-shaped convex portion 20, but also the first blade receiving spring 90a and the second blade are provided. Even if the coupling with the receiving spring 90b is performed, cracks (or cracks) in the caulked portion can be sufficiently suppressed.
The present disclosure may provide an electronic device (particularly, an outlet) including a terminal component according to a second embodiment or a third embodiment described later, instead of the terminal component according to the first embodiment described above.

<Second embodiment>
The terminal component 100A according to the second embodiment of the present disclosure electrically and mechanically connects an electric wire (not shown) to the terminal component 100A as shown in, for example, FIGS. 7A, 7B, and 8A to 8E. And a rod-shaped convex portion 20 for electrically and mechanically connecting the terminal component 100A to an electronic device. The terminal component 100A of this embodiment has a front view shape, a top view shape, a bottom view shape, a side view shape and a cross sectional view shape as shown in, for example, FIGS. 8A to 8E. The front view means that the terminal component 100A is placed such that the axial direction X of the rod-shaped convex portion 20 is a vertical direction and the rod-shaped convex portion 20 is arranged vertically upward, and the terminal component 100A faces the cylindrical

concave portions

2A and 2B. This is the condition when viewed from an angle, which is synonymous with the front view. The top view means that the terminal component 100A is placed with the axial direction X of the rod-shaped convex portion 20 as the vertical direction so that the rod-shaped convex portion 20 is arranged vertically above and viewed from directly above the rod-shaped convex portion 20. This is the condition when the product is in the same state as the plan view. The bottom view means that the terminal component 100A is placed on the transparent plate so that the rod-shaped convex portion 20 is arranged vertically upward with the axial direction X of the rod-shaped convex portion 20 as the vertical direction. This is the condition when viewed from above, which is synonymous with the bottom view. The side view means that when the terminal component 100A is placed with the axial direction X of the rod-shaped convex portion 20 as the vertical direction and the rod-shaped convex portion 20 is arranged vertically above, the terminal component 100A is seen from right side of the terminal component 100A. This is the condition of the above and is synonymous with the side view. The cross-sectional view is a state when the terminal component 100A is cut parallel to the axial direction X of the rod-shaped convex portion 20, and is synonymous with the cross-sectional view. The placement is a placement in which the terminal component 100A has a surface 11 opposite to the upper surface 12 having the rod-shaped convex portion 20 in the main body portion 10A as a bottom surface. FIG. 7A shows a schematic sketch (lower perspective view) of an example of the terminal component according to the second embodiment of the present disclosure. FIG. 7B shows a schematic sketch (upper perspective view) of an example of the terminal component according to the second embodiment of the present disclosure. 8A to 8E are a schematic front view, a schematic top view, a schematic bottom view, a schematic right side view (or a schematic left side view) and a schematic view of the terminal component of FIG. 7A (or FIG. 7B), respectively. A sectional view is shown. In particular, FIG. 8E is a schematic cross-sectional view of the terminal part of FIG. 7A (or FIG. 7B) taken along a plane passing through the axis X and the line AA and seen in the direction of the arrow, and an observation point A. An example of the enlarged schematic diagram in FIG.

The terminal component 100A of this embodiment is the same as the terminal component 100 of the first embodiment, except for the matters described below.
The through hole 1A is a hole that penetrates the body portion 10A and the rod-shaped protrusion 20 along the axial direction X of the rod-shaped protrusion 20.
-The cylindrical recessed portions 2 (2A and 2B) intersect with the through hole 1 inside the main body portion 10A, and in one direction perpendicular to the axial direction X of the rod-shaped convex portion 20 of the main body portion 10A. It is a hole that is open on the side surface.
The electric wire (not shown) is connected to the terminal component 100A by screwing in the tubular recess 2 (2A and 2B). Connecting an electric wire (not shown) to the terminal component 100A by screwing the cylindrical recess 2 (2A and 2B) means that the electric wire is inserted into the through hole 1A and the cylindrical recess 2 (2A and 2B) is connected. By inserting a screw into 2B) and tightening the screw, the electric wire is pressed and fixed by the screw, and the electrical and mechanical connection between the terminal component 100A and the electric wire is achieved. From the viewpoint of more stable connection between the electric wire and the terminal component, as shown in FIG. 10A, the terminal component 100A has two or more tubular recesses 2 (2A and 2B), and the two or more tubular recesses. It is preferable to connect an electric wire (not shown) to the terminal component 100A by tightening a screw.

In the present embodiment, the same effects as those of the first embodiment (for example, the effect of suppressing cracking of the crimped portion due to continuous metal flow and the effect of increasing the hardness of the thread portion by the rolling tap processing) can be obtained.
In the present embodiment, it is preferable that the electric wire is connected to the terminal component 100A by screwing in the tubular recess 2 (2A and 2B), and the following effects are also obtained:
-Stable structure capable of stably crimping the terminal plate; that is, since the terminal component is the target structure, the terminal plate can be crimped without rattling.

7A, 7B, and 8A to 8E, the main body portion 10A has two cylindrical

concave portions

2A and 2B along the axial direction X of the rod-shaped convex portion 20, but is not limited thereto. For example, it may have only one tubular recess, or may have three or more tubular recesses. In the present embodiment, it is preferable to have two or more (for example, 2 or more and 5 or less, particularly 2 or more and 3 or less) tubular recesses along the axial direction X of the rod-shaped protrusion 20. . Specifically, in the main body portion 10A, it is preferable that the two or more tubular concave portions are arranged in a line along the axial direction X of the rod-shaped convex portion.
When the main body 10A has two or more tubular concave portions along the axial direction X of the rod-shaped convex portion, the following effects can be obtained:
・ Screw processing (that is, pressing and fixing) of electric wires with screws is stable. Since the terminal component 100A (particularly the main body portion 10A) of the present embodiment can have two or more tubular concave portions arranged in a line along the axial direction X of the rod-shaped convex portion, two or more tubular concave portions can be formed. The more stable connection effect between the electric wire and the terminal component by tightening the screw can be said to be an effect peculiar to this embodiment.

The terminal component 100A of the present embodiment and each member constituting the terminal component 100A will be described in detail below, but matters not particularly mentioned are the same as the terminal component 100 of the first embodiment and each member constituting the terminal component 100. Is.

The main body 10A has a through hole 1A through which an electric wire is passed and a cylindrical recess 2 (2A and 2B) intersecting with the through hole 1A. The dimensions of the terminal component 100A of the present embodiment may be the same as the dimensions of the terminal component of the first embodiment, and can be appropriately determined according to, for example, the use and dimensions of the electronic device to be connected.

7A and 7B and the like, the main body portion 10A has a substantially columnar shape as a whole shape, and has a D-cut circular shape on both sides as a top view shape, but is not particularly limited, and is, for example, the first embodiment. The terminal component may have a rectangular parallelepiped shape, or may have an elliptic cylinder shape, a polygonal prism shape, or the like. The double-sided D-cut circular shape is a shape having a D-cut portion on both sides of the circular shape in the top view. The D-cut portion is a portion that is partially cut in a circular shape in a top view and has a D-order shape. The D-cut portion is usually formed in a portion that does not have the cylindrical recess 2 (2A and 2B).

The main body 10A preferably has a columnar shape as a whole. When the main body 10A has a cylindrical shape as a whole, the following effects can be obtained:
By manufacturing the cylindrical terminal component by forging, the flow of material is improved, and as a result, the productivity is improved; for example, when the main body 10A has a polygonal prism shape such as a triangular prism shape as a whole, During forging, it is difficult for the material to flow to the corners.

At least one of the bottom surface 11 and the top surface 12 of the body portion 10A is preferably flat and planar, and more preferably both the bottom surface 11 and the top surface 12 are flat and planar. This is because, for example, the following effects can be obtained.
Since the bottom surface 11 has a flat surface shape, the terminal component 100A has a stable self-standing structure, so that the handleability of the terminal component and the workability using the terminal component are improved.
The flatness of the upper surface 12 improves the mounting stability when the terminal plate 95 (see FIG. 10A described later) is mounted on the terminal component 100A; the terminal plate 95 is, for example, a switch described later. In the above, it is a member that achieves electrical and mechanical connection with the terminal component 100A by caulking the rod-shaped convex portion 20.
-By making the upper surface 12 a flat surface, it becomes easier to stably mount the terminal plate 95 on the terminal component 100A, and the caulking accuracy is improved;
By making both the bottom surface 11 and the top surface 12 flat, it is possible to stably perform the rolling tap processing when performing the rolling tap processing in the manufacturing process of the terminal component 100A; the terminal component 100A. Since it is self-supporting and does not easily fall, stable rolling tap processing is possible.

The body portion 10A preferably has a D-cut circular shape on both sides as a top view shape. This is because the main body 10A has a D-cut circular shape on both sides, so that it becomes easy to stably insert the component into the mold when manufacturing the terminal component. The main body 10A having the D-cut circular shape on both sides as the top view has the following effects:
-Since the D-cut circular shape on both sides is symmetrical in plan view, force is applied evenly during forging, and cracking during processing is prevented;
Based on the symmetry in a plan view of the D-cut circular shape on both sides, the upper surface 12 of the main body portion 10A that comes into contact with the terminal plate 95 (see FIG. 10A described later) also has a symmetric shape, so the terminal plate is attached when the terminal plate is attached Makes it difficult to tilt and can attach the terminal board stably;
Based on the symmetry of the two-sided D-cut circular shape in plan view, the through-hole is easily formed so as to pass through the center of the main body section 10A in the plan view in the step of forming the through-hole; Does not prevent having a D-cut circular shape on one side in a plan view, but when the main body portion 10A has a D-cut shape on one side, the punch for forming the through-holes approaches the thin side in a plan view. The tendency or the tendency to enter diagonally with respect to the axial direction X;
Based on the symmetry of the two-sided D-cut circular shape in plan view, when manufacturing the terminal component 100A, for example, when advancing to the next step in the forging process and when caulking when using the terminal component 100A, the terminal component 100A is It can be easily inserted by a mold; when the main body 10A has a D-cut shape on one side, the terminal component 100A fits in only one direction by 360 ° rotation in plan view, but has a D-cut shape on both sides. At this time, the terminal component 100A can be fitted in two directions by rotation of 360 ° in a plan view; as a result, the terminal component 100A including the main body portion 10A having a D-cut shape on both sides has a significant success rate in fitting arrangement. To increase.

The through hole 1A is a hole penetrating the main body 10A and the rod-shaped protrusion 20 along the axial direction X of the rod-shaped protrusion 20. For example, the through hole 1A penetrates the main body 10A and the rod-shaped protrusion 20 in parallel to the axial direction X of the rod-shaped protrusion 20. 1 A of through-holes penetrate the main-body part 10A and the rod-shaped convex part 20 so that it may pass the center of the main-body part 10A and the rod-shaped convex part 20 in a top view. 7A and 7B and the like, the through hole 1A has a columnar shape, but may have an elliptic column shape or a polygonal column shape. The polygonal prism shape is not particularly limited, and may be, for example, a triangular prism shape, a quadrangular prism shape, a pentagonal prism shape, a hexagonal prism shape, or the like. The through hole 1A having a columnar shape, an elliptic cylinder shape, or a polygonal prism shape means that the through hole 1A has a circular shape, an elliptical shape, or a polygonal shape in a top view or a bottom view.

7A, 7B, and 8A to 8E, the through hole 1A in the main body portion 10A and the through hole 1A in the rod-shaped convex portion 20 have the same shape and size in plan view, but the insertion of the electric wire ( May have different plan-view shapes and / or dimensions, as long as they are achieved.

The size of the through hole 1A in the height direction (for example, the maximum size) H3 (see FIG. 8E) is not particularly limited as long as the electric wire can be passed through the through hole 1A, and usually the entire length of the terminal component 100A (that is, the main body portion 10A). Is equal to the dimension H1 in the height direction and the dimension H4 in the height direction of the rod-shaped convex portion 20 described later).

The size (for example, maximum size) W3 (see FIG. 8C) in the width direction of the through hole 1A is not particularly limited as long as the electric wire can be passed through the through hole 1A. The dimension W3 in the width direction of the through hole 1A is usually 0.4 × W1 (mm) to 0.9 × W1 (mm), particularly 0.6 × W1 (with respect to the dimension W1 in the width direction of the main body 10A. mm) to 0.9 × W1 (mm).
The size W1 of the main body 10A in the width direction can be appropriately determined according to the application and size of the electronic device to be connected. For example, when the width W1 of the main body portion 10A is a size corresponding to the connection of the electric wire to a relatively small electronic device (for example, an electronic device for home electric appliances) such as an outlet and a switch, normally, It may be 2 to 20 mm, especially 3 to 15 mm. In the body portion 10A, the widthwise dimension W1 and the heightwise dimension H1 usually satisfy the following relationship:
W1 ≦ H1; or especially W1 <H1 ≦ 2 × W1.

The dimension (for example, the maximum dimension) D3 in the depth direction of the through hole 1A (see FIG. 8C) is not particularly limited as long as the electric wire can be passed through the through hole 1A. The dimension D3 of the through hole 1A in the depth direction is normally 0.4 × D1 (mm) to 0.9 × D1 (mm), especially 0.6 × D1 (), with respect to the dimension D1 of the body portion 10A in the depth direction. mm) to 0.9 × D1 (mm). When the through-hole 1A has a circular shape as viewed from below, the dimension D3 in the depth direction is equal to the dimension W3 in the width direction in the through-hole 1A.
The dimension D1 of the main body portion 10A in the depth direction can be appropriately determined according to the application and dimensions of the electronic device to be connected. For example, when the dimension D1 in the depth direction of the main body 10A is a dimension corresponding to the connection of an electric wire to a relatively small electronic device (for example, electronic device for home electric appliances) such as an outlet and a switch, normally, It may be 2 to 20 mm, especially 3 to 15 mm. In the main body portion 10A, the dimension D1 in the depth direction and the dimension H1 in the height direction usually satisfy the following relationship:
D1 ≦ H1; or especially D1 <H1 ≦ 2 × D1.

The cylindrical recess 2 (2A and 2B) intersects with the through hole 1A inside the main body 10A. For example, as shown in FIG. 7A, the cylindrical recessed portion 2 intersects with the through hole 1A inside the main body portion 10A while heading in one direction perpendicular to the axial direction X of the rod-shaped convex portion 20. It is a hole opened on the side surface of the portion 10A. The tubular shape of the tubular concave portion 2 means that the tubular concave portion 2 is open from inside the main body portion 10A in one direction perpendicular to the axial direction X of the rod-shaped convex portion 20, and as a result, the through hole is formed. 1A and the inside of the main body 10A intersect. Therefore, the cylindrical recess in this embodiment may be referred to as an "opening".

The cylindrical recess 2 has a circular shape in FIG. 8A in a front view, but is not limited to this, and has, for example, a polygonal shape such as a triangular shape, a quadrangular shape, a pentagonal shape, or a hexagonal shape. Good. The shape of the cylindrical recess 2 is a shape as viewed from the front. From the viewpoint of "sufficiently and more highly reliable connection (electrically and mechanically) between the electric wire and the terminal component" by the electric wire pressing screw, the cylindrical recess 2 preferably has a circular shape. When the cylindrical recess 2 has a circular shape, the cylindrical recess 2 may also be referred to as a cylindrical recess or a circular opening.

The dimension (for example, the maximum dimension) H2 in the height direction of the tubular recess 2 (see FIG. 8A) is such that the wire pressing screw can be inserted into the tubular recess 2, and the wire pressing screw has the tubular recess 2 There is no particular limitation as long as the electric wire can be pressed and fixed by insertion (and screw tightening) into the electric wire. The dimension (for example, the maximum dimension) H2 in the height direction of the tubular recessed portion 2 is specifically determined according to the number of the tubular recessed portions, and when the number of the tubular recessed portions is one, the height direction of the main body portion 10 is May be 0.2 × H1 (mm) to 0.8 × H1 (mm), particularly 0.4 × H1 (mm) to 0.6 × H1 (mm). When the number of cylindrical recesses is n (n is an integer of 2 or more), (0.2 / n) × H1 (mm) to (0.8) with respect to the height H1 of the main body 10A. / N) × H1 (mm), particularly (0.4 / n) × H1 (mm) to (0.6 / n) × H1 (mm). The height direction may be the axial direction X of the rod-shaped convex portion 20.
The height H1 of the main body 10A can be appropriately determined according to the application and size of the electronic device to be connected. For example, the height H1 of the main body 10A is the height of the outlet and the switch. In the case where the size corresponds to the connection of the electric wire to a relatively small electronic device (for example, an electronic device for home electric appliances) such as the above, the size may be within the same range as the size H1 in the first embodiment.

The widthwise dimension (for example, the maximum dimension) W2 (see FIG. 8A) of the tubular recess 2 allows the wire pressing screw to be inserted into the tubular recess 2, and the wire pressing screw is inserted into the tubular recess 2. There is no particular limitation as long as the electric wire can be pressed and fixed by inserting (and screwing). The widthwise dimension W2 of the cylindrical recess 2 is usually 0.4 × W1 (mm) to 0.9 × W1 (mm), especially 0.6 × W1 with respect to the widthwise dimension W1 of the main body 10A. It may be (mm) to 0.9 × W1 (mm). When the tubular concave portion 2 has a circular shape, the widthwise dimension W2 of the tubular concave portion 2 is equal to the heightwise dimension H2.

The cylindrical recess 2 is usually a screw hole having a thread groove. Specifically, although a thread groove is not shown on the inner wall of the cylindrical recess 2 in FIGS. 7A and 7B, a thread groove is usually formed on the inner wall. More specifically, the tubular concave portion 2 is opened on one side surface of the main body 10A in one direction perpendicular to the axial direction X of the rod-shaped convex portion 20, and a wire pressing screw (Fig. (Not shown) can be inserted and screwed. More specifically, the tubular concave portion 2 has a threaded portion (for example, a thread groove and a thread) that is fitted to the wire pressing screw on the inner wall (or inner peripheral surface) thereof.

Even if the cylindrical recess 2 has a circular shape or a polygonal shape, the cylindrical recess 2 may be a screw hole that fits with the wire pressing screw. For example, when the cylindrical recess 2 has a circular shape, the inner wall (or the inner peripheral surface) of the cylindrical recess 2 has a thread groove (and a screw thread) that fits with the wire pressing screw at least partially. The tubular recess 2 may be fittable with the wire pressing screw. Further, for example, when the tubular recess 2 has a polygonal shape, a screw groove (and a screw that fits the wire pressing screw at a portion where the inner wall (or the inner peripheral surface) of the tubular recess 2 circumscribes the wire pressing screw). The cylindrical recess 2 may be able to be fitted with the screw for pressing the electric wire by having a mountain.

The terminal component 100A of the present embodiment includes a rod-shaped convex portion 20 integrally formed with the main body portion 10A at one end in the height direction of the main body portion 10A having the through hole 1A and the cylindrical concave portion 2 described above. There is. In this embodiment, the rod-shaped protrusion has a hollow shape. In this embodiment, in the hollow form, the convex portion 20 has a cavity inside, and the cavity is opened both upward and downward.

The rod-shaped convex portion 20 has a circular shape in FIG. 8B in a top view, but is not limited to this, and has, for example, a polygonal shape such as a triangular shape, a quadrangular shape, a pentagonal shape, or a hexagonal shape. Good. The shape of the rod-shaped protrusion 20 is a shape of a contour that defines the appearance of the rod-shaped protrusion 20 in a top view. It is preferable that the rod-shaped protrusion 20 has a circular shape from the viewpoint of “more sufficiently reliable connection (electrical and mechanical) between the electronic device and the terminal component” by the rod-shaped protrusion 20. .

With respect to the dimension (for example, the maximum dimension) H4 in the height direction of the rod-shaped protrusion 20 (see FIGS. 8A and 8E), the rod-shaped protrusion 20 achieves electrical and mechanical connection between the electronic device and the terminal component. There is no particular limitation. The dimension H4 in the height direction of the rod-shaped protrusions 20 is normally within the same range as the dimension H4 in the height direction of the rod-shaped protrusions 20 in the first embodiment with respect to the dimension H1 in the height direction of the main body 10A. It may be.

The dimension (for example, the maximum dimension) W4 in the width direction of the rod-shaped protrusion 20 (see FIG. 8B) is not particularly limited as long as the rod-shaped protrusion 20 achieves electrical and mechanical connection between the electronic device and the terminal component. . The widthwise dimension W4 of the rod-shaped convex portion 20 is usually within the same range as the widthwise dimension W4 of the rod-shaped convex portion 20 in the first embodiment with respect to the widthwise dimension W1 of the main body 10. Good.

The dimension (for example, the maximum dimension) D4 in the depth direction of the rod-shaped protrusion 20 (see FIG. 8B) is not particularly limited as long as the rod-shaped protrusion 20 achieves electrical and mechanical connection between the electronic device and the terminal component. . The dimension D4 in the depth direction of the rod-shaped convex portion 20 is usually within the same range as the dimension D1 in the depth direction of the rod-shaped convex portion 20 in the first embodiment with respect to the dimension D1 in the depth direction of the main body portion 10. Good. When the rod-shaped protrusion 20 has a circular shape as viewed from above, the dimension D4 in the depth direction of the rod-shaped protrusion 20 is equal to the dimension W4 in the width direction.

In the present embodiment, the thickness (wall thickness) of the rod-shaped protrusion 20 is not particularly limited as long as the rod-shaped protrusion 20 achieves electrical and mechanical connection between the electronic device and the terminal component. The thickness (wall thickness) of the rod-shaped convex portion 20 can be appropriately determined according to the application and size of the electronic device to be connected. For example, when the thickness (thickness) of the rod-shaped convex portion 20 is a dimension corresponding to the connection of the electric wire to a relatively small electronic device (for example, electronic device for home electric appliances) such as an outlet and a switch, it is usually The thickness (wall thickness) of the rod-shaped convex portion 20 in the first embodiment may be within the same range.

In the cross-sectional view (for example, FIG. 9), the terminal component 100A does not need to have an R shape or has an R shape at the corner portion 250 at the boundary between the main body portion 10A and the rod-shaped convex portion 20. Good. When the terminal component 100A has an R shape at the corner portion 250, in detail, the terminal component 100A includes an upper perspective view of FIG. 7B, a schematic front view of FIG. 8A, a schematic right side view of FIG. 8D (or a schematic left side). As shown in a sectional view of FIG. 9) and a sectional view of FIG. 9, it is preferable that the corner portion 250 at the boundary between the main body portion 10A and the rod-shaped convex portion 20 has an R shape. The R shape means a round shape and includes a so-called round surface shape (that is, a shape in which a surface is ensured to be rounded). The radius of curvature of such an R shape is usually R0.1 mm to R0.5 mm.
Since the terminal component 100A has the R shape at the corner portion 250 at the boundary between the main body portion 10A and the rod-shaped convex portion 20, the following effects can be obtained:
-Prevention of cracks in the rod-shaped protrusions during processing; cracks (or cracks) in the rod-shaped protrusions 20 during manufacturing of the terminal component, or when using the terminal component (that is, when caulking the rod-shaped protrusions 20), It is possible to more sufficiently suppress the occurrence of cracks (or cracks) in the crimped portion.
-Reduction of stress concentration on the corner portion: It is possible to more sufficiently reduce stress concentration on the corner portion 250 during manufacturing of the terminal component and during use of the terminal component (that is, when the rod-shaped convex portion 20 is caulked). .

In the terminal component 100A of the second embodiment, the rod-shaped convex portion 20 has the same metal flow as the rod-shaped convex portion 20 of the terminal component 100 of the first embodiment in the wall portion along the height direction of the convex portion 20. It is continuous along the wall surface. In the terminal component 100A of the present embodiment, the details of the metal flow of the rod-shaped protrusions 20 are the same as the details of the metal flow of the rod-shaped protrusions 20 of the terminal component 100 of the first embodiment, so detailed description will be omitted. To do. For example, when the surface (that is, the outer wall surface or the outer peripheral side surface) 200 (or the contour line thereof) of the wall portion 201 along the height direction of the convex portion 20 is a straight line as shown in FIG. As shown in the partially enlarged view, the metal flow is observed as a continuous straight line parallel to the straight line. The partially enlarged view of FIG. 8E shows an example of the enlarged schematic view at the observation point A in the schematic cross-sectional view of FIG. 8E.

In the second embodiment, the preferable embodiment X is the first embodiment from the viewpoint of “a much more highly reliable connection (electrical and mechanical) between the electronic device and the terminal component” by the rod-shaped convex portion 20. Since it is the same as the preferred embodiment X in the aspect, detailed description thereof will be omitted. For example, in the terminal component 100A of the present embodiment, in a cross-sectional view, it is shown in FIG. 9 at the boundary between the wall portion 201 along the height direction of the convex portion 20 and the wall portion 121 along the upper surface 121 of the main body portion 10. As such, the metal flow is continuous along these wall surfaces (ie, the outer wall surface or outer peripheral side surface 200 and the top surface 12 of the body portion 10). FIG. 9 shows an example of an enlarged schematic diagram at an observation point B in the schematic sectional view of FIG. 8E.

In the second embodiment, the more preferable embodiment Y is the first embodiment from the viewpoint of “more sufficiently reliable connection (electrical and mechanical) between the electronic device and the terminal component” by the rod-shaped convex portion 20. Since it is the same as the more preferable embodiment Y in the embodiment, detailed description thereof will be omitted. For example, in the main body portion 10A, in the wall portion along the upper surface (or its contour line) 12, the metal flow is continuous along the surface of the wall portion. Further, for example, in the terminal component 100A of the present embodiment, in the cross-sectional view, in the wall portion 121 along the upper surface (or its contour line) 12, as shown in FIG. 3B in the first embodiment, the metal flow is the upper surface ( Alternatively, it is continuous along its contour line 12. FIG. 3B also shows an example of an enlarged schematic view at an observation point C in the schematic cross-sectional view of FIG. 8E.

In the second embodiment, the further preferable embodiment Z is the first embodiment from the viewpoint of "a much more sufficiently reliable connection (electrical and mechanical) between the electric wire and the terminal component" by the electric wire pressing screw. Since it is the same as the more preferable embodiment Z in the aspect, detailed description thereof will be omitted. For example, in the terminal component 100A, the cylindrical recess 2 has a continuous metal flow along the surface of the thread groove (and the thread). Further, for example, the cylindrical recess 2 has a continuous metal flow along the surface 150 of the screw groove 15a (and the screw thread 15b) as shown in FIG. 3C in a cross-sectional view. FIG. 3C also shows an example of an enlarged schematic view of a thread groove portion and a screw thread portion that can be included in the cylindrical recess according to the second embodiment.

In the terminal component 100A of the second embodiment, the main body portion 10A and the rod-shaped convex portion 20 (and optionally the screw portion (not shown) of the cylindrical concave portion) are usually integrally formed.

The constituent material (for example, a preferable constituent material) of the terminal component 100A of the second embodiment is the same as the constituent material (for example, a preferable constituent material) of the terminal component of the first embodiment, and thus detailed description thereof will be omitted. For example, the constituent material of the terminal component 100A of the second embodiment is "a much more highly reliable connection (electrical and mechanical) between the electric wire and the electronic device via the terminal component by controlling the metal flow. From the viewpoint of ", non-free-cutting brass and / or non-free-cutting copper is preferable, and it is particularly preferable that the non-free-cutting brass and C2700 are used. The C2600 material and the C2700 material are brass, and the following effects can be obtained by forming the terminal component 100A from the C2600 material or the C2700 material:
-Since it is a soft material, the workability is improved; in detail, because it is a soft material, the flowability of the material during processing is improved, and cracks and / or variations are prevented due to the stretchable and sticky material, Dimensional accuracy of terminal parts is improved.

The terminal component 100A according to the second embodiment is electrically and mechanically connected to an electronic device (particularly, a blade receiving structure of an outlet) by the rod-shaped convex portion 20 and electrically and mechanically with an electric wire by an electric wire pressing screw. Achieve the connection with a much higher reliability. Therefore, the terminal component 100A of the second embodiment can achieve the electrical and mechanical connection between the electric wire and the electronic device (particularly, the blade receiving structure of the outlet) with sufficiently high reliability.

In the terminal component 100A of the second embodiment, when the connection between the terminal component and an electronic device (for example, an outlet (particularly, its blade receiving structure)) is achieved by caulking the rod-shaped convex portion, the caulking portion is cracked ( Or cracks) can be suppressed more sufficiently. Therefore, the terminal component 100A of the second embodiment has a higher caulking strength due to the rod-shaped convex portion 20 than the conventional product having the same shape and the same constituent material. Therefore, the terminal component 100A of this embodiment can also be expected to have the effect of improving the efficiency for realizing the same crimp strength as the conventional product having the same shape and the same constituent material. That is, in the terminal component 100A of the present embodiment, from the viewpoint of realizing the same caulking strength as the conventional product having the same shape and the same constituent material, the thickness of the rod-shaped convex portion 20 or the diameter of the rod-shaped convex portion 20 is reduced. Can be expected to be small and / or the length of the rod-shaped convex portion 20 can be shortened.

In the terminal component 100A of the second embodiment, the connection between the electric wire and the terminal component can be achieved simultaneously and firmly by caulking the rod-shaped convex portion. Therefore, the terminal component 100A of the second embodiment can achieve electrical and mechanical connection between the electric wire and the electronic device (particularly, the blade receiving structure of the outlet) with sufficiently high reliability. . In the present embodiment, the widthwise dimension W4 and the depthwise dimension D4 of the rod-shaped convex portion 20 are reduced within the range in which the electric wire passes through the rod-shaped convex portion 20, thereby crimping the terminal of the rod-shaped convex portion 20. Both the effect of connecting the component and the electronic device and the effect of connecting the terminal component and the electric wire may be obtained.

[Method of manufacturing terminal parts]
The terminal component of the second embodiment can be manufactured by a method including a forging step and a tubular recess forming step.

(Forging process)
The forging process of the second embodiment is the same as the forging process of the first embodiment, except that the through hole 1A is formed instead of the cylindrical recess, so detailed description will be omitted.

(Cylindrical recess forming step)
The cylindrical recess forming step of the second embodiment is the same as the through hole forming step of the second embodiment, except that the cylindrical recess 2 (for example, 2A and 2B) is formed instead of the through hole, and therefore the details thereof will be omitted. The description is omitted. In the tubular recess forming step, when the tubular recess 2 is formed by so-called punching in forging, the punching is a 90 ° direction punching, and in that case, in the axial direction X of the rod-shaped projection 20. On the other hand, it is necessary to perform a punching process from the direction of 90 ° so that it does not completely penetrate.

(Rolling tap process)
When the terminal component 100A of the second embodiment has a threaded portion, the method of manufacturing the terminal component further includes a rolling tap step. The rolling tap process may be usually performed after the tubular recess forming process.

Since the rolling tap processing of the second embodiment is similar to the rolling tap processing of the first embodiment, detailed description will be omitted.

(Cutting process)
When the main body 10A manufactures a terminal part having a D-cut circular shape on both sides as a top view, the method for manufacturing the terminal part further includes a cutting step. The cutting step may be performed on the main body using a cutting tool so as to have a D-cut circular shape on both sides in a top view shape. The cutting step may be performed before the forging step, may be performed between the forging step and the tubular recess forming step, or may be performed after the tubular recess forming step.

In the method for manufacturing the terminal component of the second embodiment described above, the tubular recess forming step is performed after the forging step. However, as long as the terminal component of the second embodiment can be manufactured, The step of forming the cylindrical recess may be performed therein. That is, the tubular recess forming step may be performed during the forging step. For example, the tubular recess forming step may be performed in any of the following modes in the forging step:
(Aspect A ′) A tubular recess forming step is performed between the wire rod cutting process and the forward extrusion forging process;
(Aspect B ′) A tubular recess forming step is performed between the forward extrusion forging process and the upsetting forging process;
(Aspect C ′) A tubular recess forming step is performed between the upset forging process and the backward extrusion forging process;
(Aspect D ′) The tubular recess forming step is performed between the backward extrusion forging process and the bottom face punching process.

[Electronics]
The second embodiment of the present disclosure also provides an electronic device including the terminal component according to the second embodiment described above. The electronic device may be any electronic device that requires electrical and mechanical connection with an electric wire through a terminal, and examples thereof include household electronic devices such as outlets and switches, and breakers. Such an electronic device is the same as the electronic device according to the first embodiment except that the terminal component according to the second embodiment is used instead of the terminal component according to the first embodiment, and thus detailed description thereof will be omitted. In the electronic device according to the second embodiment (for example, an outlet or a switch), an electric wire is passed through a through hole 1A formed along the axial direction X of the rod-shaped convex portion 20, and the axial direction X The electronic device according to the first embodiment is the same as the electronic device according to the first embodiment except that screws are inserted into one or more cylindrical recesses 2 (for example, 2A and 2B) that open in one vertical direction.

(switch)
The switch of the present disclosure includes the terminal component 100A according to the second embodiment. The switch of the present disclosure includes, as a terminal structure 950, an integrated product of a terminal component and a terminal plate in which the terminal plate 95 is fixed to the terminal component 100A according to the second embodiment, as shown in FIG. 10A, for example. The terminal plate 95 is an electronic member for achieving electrical and mechanical connection with the terminal component 100A by caulking the rod-shaped convex portion of the terminal component 100A. The terminal board 95 has a hole for receiving the rod-shaped protrusion of the terminal component 100A. By inserting the rod-shaped convex portion of the terminal component 100A into such a hole and crimping the rod-shaped convex portion, electrical and mechanical connection between the terminal component 100A and the terminal plate 95 of the switch is achieved. . In the terminal component 100A of the present embodiment, cracks (or cracks) in the crimped portion 20 ′ (that is, the crimped bar-shaped convex portion) are more sufficiently suppressed, so the switch of the present embodiment is sufficiently high. Have credibility. On the other hand, although the electric wire is not shown in FIG. 10A, normally, the electric wire is passed through the through hole 1A, and the electric

wire pressing screws

7A and 7B are inserted into the cylindrical recess and tightened. Thereby, the electric wire is pressed and fixed by the electric

wire pressing screws

7A and 7B, and the electrical and mechanical connection between the terminal component 100A and the electric wire is achieved. As described above, in the switch of the present embodiment, the electrical and mechanical connection between the terminal component 100A and the terminal plate 95 of the switch and the electrical and mechanical connection between the terminal component 100A and the electric wire are sufficiently high. Since it is achieved with reliability, the electrical and mechanical connection between the electric wire and the switch (in particular, the terminal board 95) via the terminal component 100A is also achieved with sufficiently higher reliability. In FIG. 10A, an electric wire (not shown) is connected to the terminal component 100A only by screwing with a screw 7 (7A and 7B) in a cylindrical recess, but the bar-shaped convex portion of the terminal component 100A is caulked. Also, the electrical and mechanical connection between the electric wire and the terminal component 100A may be achieved. FIG. 10A shows a schematic sketch (upper perspective view) of an example of an integrated product of a terminal component and a terminal plate, in which the terminal plate is fixed to the terminal component according to the second embodiment of the present disclosure.

More specifically, the switch of the present disclosure includes a switch main body including a switch cover portion 96 as shown in FIG. 10B and a terminal structure 950 as an integrated body of the terminal component 100A and the terminal plate 95 as shown in FIG. 10C. It has a part 98. As shown in FIG. 10B, the switch cover portion 96 has a switch handle 97, which can be turned on and off. As shown in FIG. 10C, the switch main body 98 can be housed by fitting the terminal structure 950. In the switch main body 98, as shown in FIG. 10D, another terminal plate 99 which is arranged in electrical contact with the terminal plate 95 of the terminal structure 950 is normally housed. In such a switch, when the switch cover portion 96 is attached to the switch body portion 98, the push-down portion of the handle 97 of the switch cover portion 96 comes into contact with the terminal plate 99 of the switch body portion 98. There is. FIG. 10B is a schematic sketch (upper perspective view) of the switch cover portion of the switch including the integrated component of the terminal component and the terminal plate shown in FIG. 10A as a component. 10C and 10D are schematic sketch diagrams (upper perspective views) of a switch main body portion in a switch that includes, as a component, an integrated product of the terminal component and the terminal plate shown in FIG. 10A, and a switch main body showing an example of an assembly outline. The partial enlarged view of a part is shown. FIG. 10E is a schematic sketch (lower perspective view) of the switch cover portion in the switch including the integrated product of the terminal component and the terminal plate shown in FIG. 10A as a component, and is a partially enlarged view of the switch cover portion.

The present disclosure provides an electronic device (particularly a switch) including the terminal component according to the first embodiment described above or the terminal component according to the third embodiment described below, instead of the terminal component according to the second embodiment described above. May be.

<Third embodiment>
Although the embodiments of the present disclosure have been described above, they are merely typical examples within the scope of the present disclosure. Therefore, the present disclosure is not limited to the above embodiments, and it will be easily understood by those skilled in the art that various modifications can be made.

For example, the terminal component according to the third embodiment of the present disclosure differs from the terminal component 100 of the first embodiment only in one of the matters described above different from the first embodiment described in the second embodiment. . Specifically, the terminal component according to the third embodiment of the present disclosure is the same as the terminal component 100A of the second embodiment in only one of the above matters different from the first embodiment described in the second embodiment. Other than that, it is the same as the terminal component of the first embodiment.

1: Through hole 2: 2A: 2B: Cylindrical recess 10: 10A: Main body 11: Bottom of main body 12: Upper surface of main body 20: Rod-shaped convex 100: 100A: Terminal part

The terminal component of the present disclosure is useful for electrical and mechanical connection between an electric wire and an electronic device.

Claims

A main body having a through hole through which an electric wire is passed and a cylindrical recess intersecting with the through hole;
A metal terminal component, comprising a rod-shaped convex portion,
The terminal part is characterized in that the metal flow is continuous along the surface of the wall in the wall along the height direction of the wall.
The terminal component according to claim 1, wherein the cylindrical recess is a screw hole having a screw groove.
The terminal component according to claim 1 or 2, wherein the cylindrical recess has a continuous metal flow along the surface of the thread groove.
The terminal component according to any one of claims 1 to 3, wherein the through hole has a polygonal prism shape.
The through hole is a hole penetrating the main body in one direction perpendicular to the axial direction X of the rod-shaped convex portion,
The cylindrical concave portion is a hole formed inside the main body portion along the axial direction X of the rod-shaped convex portion while intersecting with the through hole, and is a hole that opens downward on the bottom surface of the main body portion. Yes,
The terminal component according to any one of claims 1 to 4, wherein the electric wire is connected to the terminal component by tightening a screw in the tubular recess.
The through hole is a hole penetrating the main body portion and the rod-shaped convex portion along the axial direction X of the rod-shaped convex portion,
Inside the main body, the cylindrical recess opens in the side surface of the main body in one direction perpendicular to the axial direction X of the rod-shaped projection while intersecting with the through hole. A hole,
The terminal component according to any one of claims 1 to 4, wherein the electric wire is connected to the terminal component by tightening a screw in the tubular recess.
The terminal component according to claim 6, wherein the main body portion has two or more tubular concave portions along the axial direction X of the rod-shaped convex portion.
The terminal component according to any one of claims 1 to 7, wherein the main body portion has a cylindrical shape as a whole.
The terminal component according to claim 8, wherein the main body portion has a double-sided D-cut circular shape having D-cut portions on both sides in a top view.
The terminal component according to any one of claims 1 to 9, wherein the terminal component has an R shape at a corner portion of a boundary between the main body portion and the rod-shaped convex portion in a sectional view.
The terminal component according to any one of claims 1 to 10, wherein the terminal component is made of non-free-cutting brass and / or non-free-cutting copper.
The terminal component according to any one of claims 1 to 11, wherein the terminal component is made of C2600 material or C2700 material.
A manufacturing method for manufacturing the metal terminal component according to claim 5,
A method of manufacturing a terminal component, comprising: a forging step of forming a tubular concave portion and a rod-shaped convex portion on a wire rod by forging; and a through hole forming step of forming a through hole.
A manufacturing method for manufacturing the metal terminal component according to claim 6,
A method of manufacturing a terminal component, comprising: a forging step of forming a through hole and a rod-shaped convex portion in a wire rod piece by forging; and a cylindrical concave portion forming step of forming a cylindrical concave portion.
The method for manufacturing a terminal component according to claim 13 or 14, further comprising a cutting step of cutting the main body to form a D-cut circular shape on both sides in a top view.
The method for manufacturing a terminal component according to any one of claims 13 to 15, further comprising a rolling tap step of forming a thread groove on the inner wall of the cylindrical recess by rolling tap processing.
An electronic device including the terminal component according to any one of claims 1 to 12.
The electronic device according to claim 17, wherein the electronic device is an outlet or a switch.
The outlet includes a blade receiving structure for fixing the insertion blade of the plug so that the insertion blade can be inserted and removed.
The blade receiving structure has a hole for receiving the rod-shaped convex portion,
The electronic device according to claim 18, wherein the rod-shaped convex portion is inserted into the hole portion and caulked.
The blade receiving structure includes a first blade receiving spring and a second blade receiving spring whose pressing directions of the plug with respect to the insertion blade are different from each other,
20. The electronic device according to claim 19, wherein the hole is formed in an overlapping portion of the first blade receiving spring and the second blade receiving spring.