JP6924574B2 - Connector and wire connector - Google Patents

Description

One aspect of the present invention relates to a connector and a wire connector.

As a wire connector including a connector for connecting one wire and the other wire, the one shown in Patent Document 1 is known. The wire connector described in Patent Document 1 has a portion for arranging one wire and a portion for arranging the other wire. This wire connector connects the wires by conducting the wires arranged in the respective arrangement portions.

Japanese Unexamined Patent Publication No. 06-251824

Here, there has been a demand for a wire connector capable of efficiently connecting a connector and a wire. Further, there has been a demand for a connector capable of easily manufacturing a wire connector capable of efficiently connecting a connector and a wire in this way.

The connector according to one embodiment of the present invention faces the first sandwiching portion that sandwiches the first wire on the tip end side and at least the first sandwiching portion so as to be separated from each other in the extending direction of the first wire. A cutting portion for cutting the first wire sandwiched between the first sandwiching portions is provided at the tip end side, and the first sandwiching portion and the cutting portion are integrated.

According to such a form, the connector is a first sandwiching portion that sandwiches the first wire on the tip side and a cutting portion that cuts the first wire sandwiched between the first sandwiching portions on the tip side. And have. Therefore, by pushing the first wire into the first sandwiching portion, the first wire can be cut at the cutting portion at the same time. Further, the first sandwiching portion and the cutting portion are integrated. Therefore, it is not necessary to individually align the first sandwiching portion and the cutting portion, which facilitates the manufacture of the wire connector. From the above, it is possible to easily manufacture a wire connector capable of efficiently connecting the connector and the wire.

In the connector according to another form, the hardness of the metal material constituting the connector may be HV140 to 260.

In the connector according to another form, a relay portion for connecting the base end portions to each other may be formed between the cutting portion and the first sandwiching portion.

In the connector according to another form, the blade portion formed on the tip end side of the cutting portion has a double-edged structure, and the angle of the blade portion may be 15 to 75 °.

In the connector according to another form, the blade portion may have a trapezoidal cross-sectional shape by forming a flat portion at the tip of the blade portion.

In the connector according to another form, the cut portion when viewed from the lateral direction is inclined so that the blade portion approaches the first sandwiching portion side with respect to the reference line extending in the direction in which the first sandwiching portion rises. You may be.

In the connector according to another form, the inclination angle of the cut portion with respect to the reference line may be 1 to 15 °.

In the connector according to another form, the second sandwiching portion, which is juxtaposed with the first sandwiching portion and sandwiches the second wire on the tip side, and the first sandwiching portion and the second sandwiching portion are It may be provided with a connection portion for electrically connecting.

The wire connector according to one embodiment of the present invention is attached to the above-mentioned connector, a base member on which the connector is arranged, and the base member, and holds the first wire and the second wire in the first sandwiching portion. And a cap member that presses against the second holding portion.

According to the present invention, it is possible to easily manufacture a connector capable of efficiently connecting a connector and a wire.

FIG. 1 is a developed perspective view of the wire connector according to the embodiment. FIG. 2 is a developed perspective view of the base member of the wire connector. FIG. 3 is a plan view of the wire connector. FIG. 4 is a front view of the wire connector before pressing. FIG. 5 is a front view of the wire connector after pressing. FIG. 6 is a rear view of the wire connector before pressing. FIG. 7 is a rear view of the wire connector after pressing. FIG. 8 is a right side view of the wire connector before pressing. FIG. 9 is a right side view of the wire connector after pressing. FIG. 10 is a left side view of the wire connector before pressing. FIG. 11 is a left side view of the wire connector after pressing. FIG. 12 is a bottom view of the wire connector. FIG. 13 is a front view of the contact portion. FIG. 14 is a cross-sectional view of the wire connector before pressure welding. FIG. 15 is a cross-sectional view of the wire connector at the time of temporary pressure welding. FIG. 16 is a cross-sectional view of the wire connector at the time of temporary pressure welding. FIG. 17 is a cross-sectional view of the wire connector at the time of temporary pressure welding. FIG. 18 is a cross-sectional view of the wire connector at the time of main pressure welding. FIG. 19 is a diagram for explaining a wire connection method using a wire connector. FIG. 20 is a diagram for explaining a wire connection method using a wire connector. FIG. 21 is a diagram for explaining a wire connection method using a wire connector. FIG. 22 is an enlarged perspective view of the connector. FIG. 23 is a side view of the connector when viewed from the side. FIG. 24 is a graph showing the relationship between the inclination angle of the cut portion and the clearance angle of the cut portion at the time of wire cutting.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the description of the drawings, the same or equivalent elements are designated by the same reference numerals, and duplicate description will be omitted.

First, the configuration of the wire connector 1 according to the present embodiment will be described with reference to FIGS. 1 to 12. As shown in FIGS. 1 to 12, the wire connector 1 is attached to a base member 4 for arranging the first wires 2A and 3A and the second wires 2B and 3B (see FIG. 20) and the base member 4. It includes a first cap member 6A that is attached and presses the first wires 2A and 3A, and a second cap member 6B that is attached to the base member 4 and presses the second wires 2B and 3B. The base member 4 is arranged side by side with respect to the first wire arranging portion 7A for arranging the first wires 2A and 3A and the first wire arranging portion 7A, and arranges the second wires 2B and 3B. A second wire arranging portion 7B for the purpose is provided. The wire connector 1 has a rectangular box shape as a whole when it is attached to the cap members 6A and 6B to the base member 4.

In the present embodiment, the term "wire" is used to mean an electric wire covered with a member made of an insulator. Further, in the present specification, the first direction in which the wires 2A, 3A, 2B, and 3B extend is defined as the "Y-axis direction". The front side of the paper in FIG. 1 is the positive side of the Y-axis. Further, the second direction orthogonal to the Y-axis direction in which the first wire arranging portion 7A and the second wire arranging portion 7B are arranged side by side is defined as the "X-axis direction". The front side of the paper in FIG. 1 is the positive side of the X-axis. Further, a third direction orthogonal to the Y-axis direction and the X-axis direction and in which the cap members 6A and 6B move with respect to the base member 4 is defined as the "Z-axis direction". The upper side in FIG. 1 is the Z-axis positive side.

The base member 4 is a molded part made of resin. The base member 4 has a structure point-symmetrical with respect to the center line when a center line extending in the Z-axis direction is set at the center positions in the X-axis direction and the Y-axis direction. Specifically, at the central position of the base member 4 in the X-axis direction, cap holding portions 11 and 12 that stand up toward the positive side of the Z-axis and hold the cap members 6A and 6B are formed. The cap holding portions 11 and 12 are provided on both the Y-axis positive side edge portion and the Y-axis negative side edge portion of the base member 4. The cap holding portions 11 and 12 have a function of holding a part of the cap members 6A and 6B so as to sandwich them. Further, at the central position between the cap holding portions 11 and 12 in the Y-axis direction and the X-axis direction, the positioning portion 10 for positioning the cap members 6A and 6B projects to the positive side in the Z-axis direction. Details of the configuration of the cap holding portions 11 and 12 will be described later together with the description of the cap members 6A and 6B. The base member 4 has a first wire arranging portion 7A on the negative side of the X axis of the cap holding portions 11 and 12, and a second wire arranging portion 7B on the positive side of the X axis of the cap holding portions 11 and 12. Have. Further, the base member 4 includes a side wall portion 15A that rises toward the positive side in the Z-axis direction and extends in the Y-axis direction at the edge portion on the negative side in the X-axis direction of the first wire arrangement portion 7A. Further, the base member 4 includes a side wall portion 15B that rises toward the positive side in the Z-axis direction and extends in the Y-axis direction at the edge portion on the positive side in the X-axis direction of the second wire arrangement portion 7B. The side wall portions 15A and 15B are provided with engaging portions 15a for engaging with the cap members 6A and 6B when the wires are in main pressure contact.

The first wire arranging portion 7A includes a semicircular groove portion 13A extending in the Y-axis direction and arranging the first wire 2A, and extending in the Y-axis direction at positions adjacent to the groove portion 13A on the positive side of the X-axis. A semicircular groove 14A for arranging the first wire 3A is formed. The second wire arranging portion 7B has a semicircular groove portion 13B extending in the Y-axis direction for arranging the second wire 2B, and extending in the Y-axis direction at a position adjacent to the groove portion 13B on the positive side of the X-axis. A semicircular groove 14B for arranging the second wire 3B is formed.

The base member 4 includes connectors 50A and 50B. The connector 50A includes a contact portion 16, a first cutting portion 18A, a second cutting portion 18B, a first relay portion 51A, and a second relay portion 51B. The connector 50B includes a contact portion 17, a first cutting portion 19A, a second cutting portion 19B, a first relay section 52A, and a second relay section 52B. The connector 50A and 50B are made of metal and are fixed to the base member 4 by fitting into a groove formed in the molded part (see particularly FIG. 2).

The contact portion 16 sandwiches the first sandwiching portion 21A that sandwiches the first wire 2A arranged in the first wire arranging portion 7A and the second wire 2B arranged in the second wire arranging portion 7B. It has a second sandwiching portion 21B to be provided, and also includes a conductive portion 22 for conducting the first wire 2A and the second wire 2B. The first sandwiching portion 21A is arranged at an intermediate position in the Y-axis direction of the groove portion 13A of the first wire arranging portion 7A. The second sandwiching portion 21B is arranged at an intermediate position in the Y-axis direction of the groove portion 13B of the second wire arranging portion 7B (the same position as the first sandwiching portion 21A in the Y-axis direction). The conductive portion 22 extends in the bottom plate of the base member 4 in the X-axis direction so as to pass through the positions of the cap holding portions 11 and 12, and connects the first sandwiching portion 21A and the second sandwiching portion 21B. The contact portion 16 is arranged at a position where it comes into contact with the side surface of the positioning portion 10 on the positive side in the Y-axis direction (see, for example, FIG. 14B).

The contact portion 17 sandwiches the first pinching portion 23A that sandwiches the first wire 3A arranged in the first wire arranging portion 7A and the second wire 3B arranged in the second wire arranging portion 7B. It is provided with a second holding portion 23B to be provided, and a conductive portion 24 for conducting the first wire 3A and the second wire 3B. The first sandwiching portion 23A is arranged at an intermediate position in the Y-axis direction of the groove portion 14A of the first wire arranging portion 7A. The second sandwiching portion 23B is arranged at an intermediate position in the Y-axis direction of the groove portion 14B of the second wire arranging portion 7B (the same position as the first sandwiching portion 23A in the Y-axis direction). The first sandwiching portion 23A and the second sandwiching portion 23B are arranged on the negative side in the Y-axis direction with respect to the first sandwiching portion 21A and the second sandwiching portion 21B. The conductive portion 24 extends in the bottom plate of the base member 4 in the X-axis direction so as to pass through the positions of the cap holding portions 11 and 12, and connects the first sandwiching portion 23A and the second sandwiching portion 23B. The contact portion 17 is arranged at a position where it comes into contact with the side surface of the positioning portion 10 on the negative side in the Y-axis direction (see, for example, FIG. 14B).

Next, the configurations of the contact portions 16 and 17 will be described in detail with reference to FIG. The contact portions 16 and 17 have the same shape as each other. Further, the contact portions 16 and 17 are formed by forming a flat plate-shaped plate member into a predetermined shape. In the state of being set on the base member 4, the contact portions 16 and 17 are arranged so that the thickness direction of the plate member is the Y-axis direction. The sandwiching portions 21A, 23A, 21B, 23B correspond to the wire diameters of the first wires 2A, 3A and the second wires 2B, 3B of a plurality of types, respectively, in the third direction of the cap members 6A, 6B ( A temporary pressure contact portion 26 whose groove width is narrowed in a plurality of steps along the negative side in the Z-axis direction) and a main pressure contact portion 27 formed on the base member 4 side in a third direction from the temporary pressure contact portion 26 are provided.

The first sandwiching portions 21A and 23A have a pair of protruding portions 28 protruding from the conductive portions 22 and 24 in the Z-axis direction. The temporary pressure contact portion 26 and the main pressure contact portion 27 are formed by the gap formed by separating the pair of protrusions 28 in the X-axis direction. In the present embodiment, the projecting portion 28, the temporary pressure contact portion 26, and the main pressure contact portion 27 have a line-symmetrical configuration with respect to the center line CL1 extending in the Z-axis direction. When viewed from the Y-axis direction, the center lines CL1 of the second sandwiching portions 21B and 23B are arranged so as to coincide with the center lines of the groove portions 13B and 14B in the X-axis direction (see, for example, FIG. 6). Further, the temporary pressure welding portion 26 has three different groove widths so as to correspond to three types of wire diameters. Specifically, from the tip of the protruding portion 28 on the positive side in the Z-axis direction to the negative side in the Z-axis direction, the first portion 26a for temporarily pressing the wires 2B and 3B having the largest wire diameters, the wire diameter. A second portion 26b for temporarily joining the wires 2B and 3B having a small diameter and a third portion 26c for temporarily pressing the wires 2B and 3B having the smallest wire diameter are formed. The main pressure contact portion 27 extends from the third portion 26c in the third direction. In the present embodiment, the groove width of the third portion 26c and the groove width of the main pressure contact portion 27 are substantially the same. Since the first sandwiching portions 21A and 23A have the same configuration as the second sandwiching portions 21B and 23B, the detailed configuration is the same.

As shown in FIGS. 1 to 12, the first cutting portions 18A and 19A are arranged at positions facing the first sandwiching portions 21A and 23A in the Y-axis direction. The first cutting portions 18A and 19A are composed of plate-shaped members whose thickness direction is in the Y-axis direction, and the tip portion on the positive side in the Z-axis direction is configured as a blade portion extending straight in the X-axis direction. There is. In the present embodiment, the first cutting portions 18A and 19A are intermediate positions in the Y-axis direction of the groove portions 13A and 14A of the first wire arranging portion 7A, and are Y with respect to the first holding portions 21A and 23A. It is located at a position separated from the negative side in the axial direction. The first cutting portions 18A and 19A are arranged near the edge portion on the negative side in the Y-axis direction of the base member 4.

The second cutting portions 18B and 19B are arranged at positions facing the second sandwiching portions 21B and 23B in the Y-axis direction. The second cutting portions 18B and 19B are composed of plate-shaped members whose thickness direction is in the Y-axis direction, and the tip portion on the positive side in the Z-axis direction is configured as a blade portion extending straight in the X-axis direction. There is. In the present embodiment, the second cutting portions 18B and 19B are intermediate positions in the Y-axis direction of the groove portions 13B and 14B of the second wire arranging portion 7B, and are Y with respect to the second sandwiching portions 21B and 23B. It is located at a position separated on the positive side in the axial direction. The second cutting portions 18B and 19B are arranged near the edges of the base member 4 on the positive side in the Y-axis direction.

Here, as shown in FIGS. 15 (a), 16 (a), and 17 (a), the positional relationship between the first sandwiching portion 23A and the first cutting portion 19A is provisional for the first wire 3A. At the time of pressure welding, the first wire 3A is sandwiched between the temporary pressure welding portions 26 to conduct the contact portion 16 and is set at a position where the first wire 3A is not cut by the first cutting portion 19A. Further, as shown in FIG. 18A, the positional relationship between the first sandwiching portion 23A and the first cutting portion 19A is such that when the first wire 3A is in main pressure welding, the first wire 3A is in main pressure welding. By being sandwiched by the portion 27, it conducts with the contact portion 16 and is set at a position where it is cut by the first cutting portion 19A. The same relationship as described above holds for the positional relationship between the first sandwiching portion 21A and the first cutting portion 18A. Further, the same relationship holds for the positional relationship between the second sandwiching portions 21B and 23B and the second cutting portions 18B and 19B.

Here, the features of the connectors 50A and 50B according to the present embodiment will be described with reference to FIGS. 22 and 23. The contact portion 16 having the sandwiching portions 21A and 21B of the connector 50A and the cutting portions 18A and 18B are integrated. The first sandwiching portion 21A and the first cutting portion 18A are integrated via the first relay portion 51A. The second sandwiching portion 21B and the second cutting portion 18B are integrated via the second relay portion 51B. The contact portion 17 having the sandwiching portions 23A and 23B of the connector 50B and the cutting portions 19A and 19B are integrated. The first sandwiching portion 23A and the first cutting portion 19A are integrated via the first relay portion 52A. The second sandwiching portion 23B and the second cutting portion 19B are integrated via the second relay portion 52B. In addition, "integrated" means a state in which the parts are seamlessly connected to each other. In the connector 50A of the present embodiment, the contact portion 16, the cutting portions 18A and 18B, and the relay portions 51A and 51B are integrally formed by die-cutting the sheet metal and then bending the corresponding portion.

The first relay portion 51A connects the base end portion 21Aa of the first sandwiching portion 21A and the base end portion 18Aa of the first cutting portion 18A. The first relay portion 51A is formed in a plate shape so as to extend in the Y-axis direction between the base end portion 21Aa of the first sandwiching portion 21A and the base end portion 18Aa of the first cutting portion 18A. There is. The second relay portion 51B connects the base end portion 21Ba of the second sandwiching portion 21B and the base end portion 18Ba of the second cutting portion 18B. The second relay portion 51B is formed in a plate shape so as to extend in the Y-axis direction between the base end portion 21Ba of the second sandwiching portion 21B and the base end portion 18Ba of the second cutting portion 18B. There is. The first relay portion 52A connects the base end portion 23Aa of the first sandwiching portion 23A and the base end portion 19Aa of the first cutting portion 19A (see FIG. 23). The first relay portion 52A is formed in a plate shape so as to extend in the Y-axis direction between the base end portion 23Aa of the first sandwiching portion 23A and the base end portion 19Aa of the first cutting portion 19A. There is. The second relay portion 52B connects the base end portion 23Ba of the second sandwiching portion 23B and the base end portion 19Ba of the second cutting portion 19B. The second relay portion 52B is formed in a plate shape so as to extend in the Y-axis direction between the base end portion 23Ba of the second sandwiching portion 23B and the base end portion 19Ba of the second cutting portion 19B. There is.

The hardness of the metal material constituting the connector 50A and 50B may be HV140 to 260. The lower limit of hardness may be HV150 or HV180. By setting the lower limit value of the hardness to such a value, it is possible to satisfactorily cut the wire at the cutting portions 18A, 18B, 19A, 19B. The upper limit of hardness may be HV230. By setting the upper limit value of the hardness to such a value, it is possible to satisfactorily perform die cutting at the time of manufacturing. The metal material constituting the connector 50A and 50B may be, for example, phosphor bronze for a spring, phosphor bronze, beryllium copper or the like.

Next, with reference to FIG. 23, the blade configurations of the cutting portions 19A and 19B will be described in detail. Although FIG. 23 shows a side view of only the connector 50B, the description thereof will be omitted because the cutting portions 18A and 18B of the connector 50A also have the same configuration. As shown in FIG. 23, the blade portions 54A and 54B formed on the tip side of the cutting portions 19A and 19B have a double-edged structure. The double-edged structure is a structure formed by inclining the tips of both side surfaces in the thickness direction. The blade portion 54A has inclined surfaces 54Aa and 51Ab on both sides in the thickness direction, respectively. Further, the blade portion 54A has a trapezoidal cross-sectional shape. Therefore, a flat surface 54Ac is formed at the tip ends of the inclined surfaces 54Aa and 54Ab. The blade portion 54B has inclined surfaces 54Ba and 51Bb on both sides in the thickness direction, respectively. Further, the blade portion 54B has a trapezoidal cross-sectional shape. Therefore, a flat surface 54Bc is formed at the tip ends of the inclined surfaces 54Ba and 54Bb. The width of the planes 54Ac and 54Bc may be 0.03 to 0.07 mm. The angles of the blade portions 54A and 54B (angles indicated by θ1 and θ2 in the figure) are 15 to 75 °. The lower limit of the angle may be 20 °. By setting the lower limit value of the angle to such a value, it is possible to suppress the crushing of the blade portions 54A and 54B of the cutting portions 19A and 19B. The upper limit of the angle may be 60 °. By setting the upper limit value of the angle to such a value, the force required for wire cutting can be suppressed.

Further, the cutting portions 19A and 19B when viewed from the lateral direction are inclined so that the blade portions 54A and 54B approach the sandwiching portions 23A and 23B with respect to the reference line SL1 extending in the direction in which the sandwiching portions 23A and 23B stand up. ing. When the reference line SL2 is set at the center position in the thickness direction with respect to the first cutting portion 19A, the reference line SL2 is inclined with respect to the reference line SL1. When the reference line SL3 is set at the center position in the thickness direction with respect to the second cutting portion 19B, the reference line SL3 is inclined with respect to the reference line SL1. The inclination angle of the cut portions 19A and 19B with respect to the reference line SL1 may be 1 to 15 °. Further, the lower limit of the inclination angle may be 2 °. By setting the lower limit of the angle to such a value, the amount of relief of the cut portions 19A and 19B at the time of wire cutting can be reduced. Further, the upper limit of the inclination angle may be 10 °. By setting the upper limit value of the angle to such a value, it is possible to prevent the cut portions 19A and 19B from collapsing toward the SL1 side due to an excessive inclination during wire cutting.

Here, with reference to the graph of FIG. 24, the relationship between the inclination angle of the cutting portions 19A and 19B and the clearance angle at the time of wire cutting will be described. The horizontal axis of the graph in FIG. 24 is the inclination angle of the cutting portions 19A and 19B before cutting the wire. The blade height at this time was 3.75 mm. It is assumed that the clearance angle when the cutting portions 19A and 19B are tilted to the opposite side of the sandwiching portions 23A and 23B is negative. As shown in FIG. 24, the escape angle can be made smaller when the inclination angle is provided to some extent as compared with the case where the inclination angle is 0. In addition, when the inclination angle was around 9 °, the clearance angle could be minimized.

Next, as shown in FIGS. 1 to 12, the first cap member 6A and the second cap member 6B are the pressing portions 31A and 31B facing the base member 4, and the pressing portions 31A and 31B to the base member 4 By having the mounting portions 32A and 32B extending to the side, it has an L shape when viewed from the Y-axis direction. The pressing portion 31A of the first cap member 6A has a shape extending along the XY-axis plane, and the mounting portion 32A ZY from the positive side edge of the pressing portion 31A toward the negative side in the Z-axis direction. It has a shape that extends along the axial plane. The pressing portion 31A has a rectangular shape substantially the same shape as the first wire arranging portion 7A of the base member 4 when viewed from the Z-axis direction. The mounting portion 32A is formed at a position where it is held between the cap holding portions 11 and 12. The pressing portion 31B of the second cap member 6B has a shape extending along the XY axis plane, and the mounting portion 32B ZY from the edge portion on the negative side of the X axis of the pressing portion 31B toward the negative side in the Z axis direction. It has a shape that extends along the axial plane. The pressing portion 31B has a rectangular shape substantially the same shape as the second wire arranging portion 7B of the base member 4 when viewed from the Z-axis direction. The mounting portion 32B is formed at a position where it is held between the cap holding portions 11 and 12.

As shown in FIGS. 14 (a), 15 (a), 16 (a), 17 (a), and 18 (a), the pressing portion 31A of the first cap member 6A is the base member 4. The top plate portion 33 facing the first wire arrangement portion 7A projects from the edge portion on the negative side in the X-axis direction of the top plate portion 33 to the negative side in the Z-axis direction and engages with the engaging portion 15a of the side wall portion 15A. It includes an engaging portion 34, a protruding portion 36 that presses the wire 2A, and a protruding portion 37 that presses the wire 3A. Note that FIG. 14A is a cross-sectional view taken along the line XIVa-XIVa of FIG. 1 in a state where the cap members 6A and 6B are attached to the base member 4. Other FIGS. 15 (a), 16 (a), 17 (a), and 18 (a) also show cross-sectional views when the states of the cap members 6A and 6B are appropriately changed at the same positions. There is. The engaging portion 34 comes into contact with the outer peripheral surface of the side wall portion 15A and engages with the engaging portion 15a in a state where the main pressure welding of the wires 2A and 3A is completed. Further, in FIG. 17A, a part of the engaging portion 34 has a function of stabilizing the connection by engaging with a part of the engaging portion 15a. Specifically, the engaging portion 15a has a chevron shape protruding to the negative side in the X-axis direction at the tip portion on the positive side in the Z-axis direction, and has a chevron shape on the negative side in the Z-axis direction from the chevron shape. Also has a trapezoidal shape with a small amount of protrusion. In the state of temporary pressure welding shown in FIG. 17A, the engaging portion 34 engages with the chevron shape in the engaging portion 15a of the side wall portion 15A. In the state of main pressure welding shown in FIG. 18A, the engaging portion 34 engages with the trapezoidal shape of the engaging portion 15a of the side wall portion 15A. In this way, by setting the engagement state in two stages, the pressing state of the wire can be stabilized even at the time of temporary pressure welding. The protruding portion 36 is provided at a position facing the first cutting portion 18A in the Z-axis direction. The tip of the protruding portion 36 on the negative side of the Z axis is close to a position where the tip of the first cutting portion 18A on the positive side of the Z axis is substantially in contact with the blade portion of the first cutting portion 18A in a state where the main pressure welding of the wires 2A and 3A is completed. do. The protruding portion 37 is provided at a position facing the main pressure contact portion 27 of the first holding portion 23A in the Z-axis direction. By setting the width of the protruding portion 37 in the X-axis direction to be equal to or less than the groove width of the main pressure welding portion 27, the protruding portion 37 can enter the main pressure welding portion 27 at the time of the main pressure welding. The tip of the protruding portion 37 on the negative side of the Z-axis is close to a position where the tip of the first cutting portion 19A on the positive side of the Z-axis is substantially in contact with the blade after the main pressure welding is completed. The pressing portion 31B of the second cap member 6B has a point-symmetrical configuration with respect to the center point of the base member 4 when viewed from the Z-axis direction with the pressing portion 31A of the first cap member 6A. , Has the same structure as the pressing portion 31A. The pressing portion 31B includes a protruding portion 38 that enters the main pressure contact portion 27 of the second holding portion 23B, but the pressing portion 31A also includes a protruding portion that enters the main pressure contact portion 27 of the first sandwiching portion 21A. ..

As shown in FIGS. 14 (a), 15 (b), 16 (b), 17 (b), and 18 (b), the attachment portion 32A of the first cap member 6A is the base member 4. A pair of fitting portions 41 and 42 to be fitted into the cap holding portions 11 and 12 are provided. The fitting portions 41 and 42 have a structure that is line-symmetrical with respect to the center line extending in the Z-axis direction. The fitting portions 41 and 42 extend from the positive side edge portion in the X-axis direction of the pressing portion 31A toward the negative side in the Z-axis direction. Further, the inner edge 41a of the fitting portion 41 in the Y-axis direction (negative side in the Y-axis direction) extends straight toward the negative side in the Z-axis direction and is cut into a rectangular shape at the end on the negative side in the Z-axis direction. The notched notch 41b is formed. The inner edge 42a of the fitting portion 42 in the Y-axis direction (positive side in the Y-axis direction) extends straight toward the negative side in the Z-axis direction and is cut out in a rectangular shape at the end on the negative side in the Z-axis direction. A notch 42b is formed. The fitting portions 41 and 42 are separated from each other so that their edge portions 41a and 42a form a gap in the Y-axis direction. The width of the gap (the size in the Y-axis direction) is substantially the same as the width of the positioning portion 10 of the base member 4. Therefore, when the cap member 6A presses the wire on the negative side in the Z-axis direction, the fitting portions 41 and 42 are guided to the negative side in the Z-axis direction by the positioning portion 10.

In a state where the notch 41b has moved to the vicinity of the base end on the negative side in the Z-axis direction of the positioning portion 10 (states 17 (b) and 18 (b)), the notch 41b is the positioning portion 10. It is arranged so as to sandwich the conductive portion 22 of the contact portion 16 with the side surface on the positive side in the Y-axis direction. Further, in this state, the notch portion 42b is arranged so as to sandwich the conductive portion 24 of the contact portion 17 with the side surface of the positioning portion 10 on the negative side in the Y-axis direction.

Further, the first cap member 6A has locking portions 44, 45 that lock with a part of the base member 4 in a state of transition from the temporary pressure welding to the main pressure welding. Specifically, the locking portion 44 is composed of a protrusion portion that protrudes from the notch portion 41b of the fitting portion 41 to the negative side in the Y-axis direction. The locking portion 45 is composed of a protrusion that protrudes from the notch 42b of the fitting portion 42 to the positive side in the Y-axis direction. The dimension between the tip of the locking portion 44 on the negative side in the Y-axis direction and the side surface of the positioning portion 10 on the positive side in the Y-axis direction is larger than the thickness of the conductive portion 22 of the contact portion 16 (dimension in the Y-axis direction). small. The dimension between the tip of the locking portion 45 on the positive side in the Y-axis direction and the side surface of the positioning portion 10 on the negative side in the Y-axis direction is larger than the thickness of the conductive portion 22 of the contact portion 16 (dimension in the Y-axis direction). small. As for the positions of the locking portions 44 and 45 in the Z-axis direction, as shown in FIG. 17, the wires 2B and 3B having the smallest wire diameter in the setting are temporarily positioned at the positions of the third portion 26c (see FIG. 13). In the state of pressure welding (the state of transition from temporary pressure welding to main pressure welding), the position is set so that the contact portions 16 and 17 which are a part of the base member 4 are locked to the upper surfaces of the conductive portions 22 and 24.

The first cap member 6A constitutes a latch structure 46, 47 in which fitting positions are installed in a plurality of stages according to a plurality of stages of groove widths in the temporary pressure contact portion 26 with the base member 4. Specifically, the latch structure 46 is composed of a plurality of grooves formed on the outer (positive side in the Y-axis direction) edge of the fitting portion 41 of the first cap member 6A in the Y-axis direction. The plurality of groove portions of the latch structure 46 are configured so that the locking portion 11a protruding from the end portion of the cap holding portion 11 of the base member 4 on the positive side in the Z-axis direction is locked. The latch structure 47 is composed of a plurality of grooves formed on the outer (negative side in the Y-axis direction) edge of the fitting portion 42 of the first cap member 6A in the Y-axis direction. The plurality of groove portions of the latch structure 47 are configured such that the locking portion 12a protruding from the end portion of the cap holding portion 12 of the base member 4 on the positive side in the Z-axis direction is locked.

The relationship between the states of the wires 2A and 3A and the states of the latch structures 46 and 47 and the locking portions 11a and 12a will be described with reference to FIGS. 14 to 18. As shown in FIG. 14A, in the state where the wires 2A and 3A are arranged, the first cap member 6A is in an open state with respect to the base member 4, and the first cap member 6A holds the wires 2A and 3A. It will not be pressed. At this time, the wires 2A and 3A are inserted from the outside in the X-axis direction to the inside (from the negative side to the positive side in the X-axis direction) through the gap between the first cap member 6A and the base member 4, so that the wire 2A , 3A can be arranged in the first wire arranging portion 7A. In this state, as shown in FIG. 14B, the locking portions 11a and 12a are locked in the groove portion on the negative side in the Z-axis direction of the latch structures 46 and 47. In FIG. 14, the wires 2A and 3A having the smallest wire diameter are used in terms of setting, but the same condition can be obtained even with other wire diameters.

As shown in FIG. 15A, the wires 2A and 3A were pressed against the first cap member 6A in the negative side in the Z-axis direction in a state where the wires 2A and 3A having the largest wire diameters were temporarily pressed against each other in the setting. In this state, the wires 2A and 3A are temporarily pressed against the first portion 26a (see FIG. 13) of the sandwiching portions 21A and 23A. In this state, as shown in FIG. 15B, the locking portions 11a and 12a are locked in the second groove portion from the negative side in the Z-axis direction of the latch structures 46 and 47.

As shown in FIG. 16A, in the state where the wires 2A and 3A having the second largest wire diameter are temporarily pressed against the first cap member 6A in the setting, the wires 2A and 3A are pressed against the first cap member 6A in the negative side in the Z-axis direction. The wires 2A and 3A are temporarily pressed against the second portion 26b (see FIG. 13) of the sandwiching portions 21A and 23A. In this state, as shown in FIG. 16B, the locking portions 11a and 12a are locked in the third groove portion from the negative side in the Z-axis direction of the latch structures 46 and 47.

As shown in FIG. 17A, the wires 2A and 3A were pressed against the first cap member 6A in the negative side in the Z-axis direction in a state where the wires 2A and 3A having the smallest wire diameter were temporarily pressed against each other. In this state, the wires 2A and 3A are temporarily pressed against the third portion 26c (see FIG. 13) of the sandwiching portions 21A and 23A. In this state, as shown in FIG. 17B, the locking portions 11a and 12a are locked in the fourth groove portion from the negative side in the Z-axis direction of the latch structures 46 and 47. Further, at this time, the locking portions 44 and 45 are locked with the upper surfaces of the conductive portions 22 and 24. Even when the wires 2A and 3A having a large wire diameter are adopted, in the state immediately before the wires 2A and 3A are completely cut by the cutting portions 18A and 19A and the state is shifted to the main pressure welding state, the wires 2A and 3A are engaged. The stopping portions 44 and 45 are locked to the upper surfaces of the conductive portions 22 and 24. A part of the engaging portion 34 has a function of stabilizing the connection by engaging with a part of the engaging portion 15a.

As shown in FIG. 18A, in the state where the wires 2A and 3A are in main pressure contact, the wires 2A and 3A are in a state of being pressed against the first cap member 6A on the negative side in the Z-axis direction, and the wires 2A and 3A are pressed. 3A is in a state of being main-pressure-welded to the main pressure-welding portion 27 (see FIG. 13). The wires 2A and 3A are cut at the cutting portions 18A and 19A. In this state, as shown in FIG. 18B, the locking portions 11a and 12a are locked in the groove portion on the most positive side in the Z-axis direction of the latch structures 46 and 47. At this time, the locking portions 44 and 45 move to the negative side in the Z-axis direction from the upper surfaces of the conductive portions 22 and 24. In addition, regardless of the size of the wire diameter, when the wires 2A and 3A are mainly pressure-welded, the state shown in FIG. 18 is obtained. Since the second cap member 6B has the same configuration as the first cap member 6A, the same description as in FIGS. 14 to 18 holds true.

Next, a method of connecting wires using the wire connector 1 configured as described above will be described with reference to FIGS. 19 to 21. Here, the work in the case of performing the cutting work of the newly installed wires 2B and 3B and the existing wires 2A and 3A will be described as an example. First, as shown in FIG. 19A, the newly installed wires 2B and 3B are arranged in the second wire arranging portion 7B of the base member 4. Next, as shown in FIG. 19B, by pressing the second cap member 6B with a finger (or pliers), the wires 2B and 3B are brought into contact with the second wire arranging portion 7B. Perform temporary pressure welding. Next, as shown in FIG. 20A, the second cap member 6B is further pressed with pliers to bring the wires 2B and 3B into main pressure contact and cut the extra length portion. The temporary pressure welding process may be omitted for the newly installed wires 2B and 3B.

Next, as shown in FIG. 20B, the existing wires 2A and 3A are arranged in the first wire arranging portion 7A of the base member 4. Next, as shown in FIG. 21A, by pressing the first cap member 6A with a finger (or pliers), the wires 2A and 3A are brought into contact with the first wire arranging portion 7A. Perform temporary pressure welding. In this state, the new wire 2B and the existing wire 2A are electrically connected, and the new wire 3B and the existing wire 3A are electrically connected, so that a multi-connection state is temporarily established. As a result, when switching from the wires 2A and 3A to the wires 2B and 3B, the disconnection state does not occur, and an error can be avoided on the system side. Next, as shown in FIG. 21B, by further pressing the first cap member 6A with pliers, the wires 2A and 3A are mainly pressed to cut the extra length portion. The work is completed by the above.

The groove width of the first sandwiching portions 21A and 23A is narrowed in a plurality of steps along the third direction of the first cap member 6A so as to correspond to the wire diameters of the plurality of types of the first wires 2A and 3A. A temporary pressure contact portion 26 and a main pressure contact portion 27 formed on the base member 4 side (negative side in the Z-axis direction) in a third direction from the temporary pressure contact portion 26 are provided. Further, at the time of temporary pressure contact of the first wires 2A and 3A, the first wires 2A and 3A are sandwiched by the temporary pressure contact portions 26 to conduct with the contact portions 16 and 17, and the first cut portions 18A, Not cut at 19A. Therefore, even if the wire diameters of the first wires 2A and 3A are different for a plurality of types, the temporary pressure contact portion 26 temporarily performs the provisional step before cutting the first wires 2A and 3A. It can be in a state of pressure welding. In the temporary pressure contact state, the first wires 2A and 3A are not cut, but the contact portions 16 and 17 can be connected to each other. Therefore, it is possible to avoid an error on the system side. On the other hand, at the time of main pressure welding of the first wires 2A and 3A, the first wires 2A and 3A are sandwiched by the main pressure welding portions 27 to conduct with the contact portions 16 and 17, and the first cutting portions 18A, It is cut at 19A. Therefore, once the first wires 2A and 3A and the second wires 2B and 3B are made conductive, the extra length of the first wires 2A and 3A can be cut by performing the main pressure welding. can. As described above, the wires can be efficiently connected to each other regardless of the wire diameter of the wires.

Further, in the wire connector 1, the first cap member 6A has a latch structure 46 in which the fitting position is installed in a plurality of stages between the first cap member 6A and the base member 4 according to a plurality of stages of groove widths in the temporary pressure contact portion 26. , 47. As a result, the cap member can be firmly fixed to the base member in the temporary pressure contact state, and the temporary pressure contact state can be maintained.

Further, in the wire connector 1, the first cap member 6A and the second cap member 6B are attached portions extending from the pressing portions 31A and 31B facing the base member 4 and the pressing portions 31A and 31B to the base member 4 side. It has 32A and 32B. As a result, the first wires 2A and 3A and the second wires 2B and 3B form an L shape when viewed from the first direction in which they extend. Further, the first wires 2A and 3A and the second wires 2B and 3B are inserted into the gap between the base member 4 and the pressing portions 31A and 31B from the second direction orthogonal to the third direction. As a result, they may be arranged in the first wire arranging portion 7A and the second wire arranging portion 7B. This facilitates the arrangement of the wires in the wire arrangement portions 7A and 7B, so that the wires can be efficiently connected to each other.

Further, in the wire connector 1, the first cap member 6A has locking portions 44, 45 that lock with a part of the base member 4 in a state of transition from the temporary pressure welding to the main pressure welding. As a result, when the temporary pressure welding state is maintained, it is possible to prevent the accidental transition to the main pressure welding.

Next, the actions and effects of the connectors 50A and 50B and the wire connector 1 according to the present embodiment will be described.

In the present embodiment, the connectors 50A and 50B have a first wire with respect to the first sandwiching portions 21A and 23A for sandwiching the first wires 2A and 3A on the tip side and at least the first sandwiching portions 21A and 23A. Cutting portions 18A and 19A that are arranged at positions facing each other apart from each other in the extending direction of 2A and 3A and that cut the first wires 2A and 3A sandwiched between the first sandwiching portions 21A and 23A on the tip side. The first sandwiching portions 21A and 23A and the cutting portions 18A and 19A are integrated.

According to such a form, the connectors 50A and 50B are sandwiched between the first sandwiching portions 21A and 23A for sandwiching the first wires 2A and 3A on the tip side and the first sandwiching portions 21A and 23A. It is provided with cutting portions 18A and 19A for cutting the first wires 2A and 3A on the tip side. Therefore, by pushing the first wires 2A and 3A into the first sandwiching portions 21A and 23A, the first wires 2A and 3A can be cut at the same time by the cutting portion. Further, the first sandwiching portions 21A and 23A and the cutting portions 18A and 19A are integrated. Therefore, it is not necessary to individually align the first sandwiching portions 21A and 23A and the cutting portions 18A and 19A, so that the wire connector 1 can be easily manufactured. From the above, it is possible to easily manufacture the wire connector 1 capable of efficiently connecting the connectors 50A and 50B to the wire.

In the connector 50A and 50B, the hardness of the metal material constituting the connector 50A and 50B may be HV140 to 260. As a result, the cutting portions 18A and 19A can be satisfactorily cut, and the die cutting at the time of manufacturing can be satisfactorily performed.

In the connector 50A, 50B, relay portions 51A, 52A may be formed between the cutting portions 18A, 19A and the first sandwiching portions 21A, 23A to connect the base end portions to each other. As a result, the number of steps for incorporating the cutting portion and the sandwiching portion into the base member 4 can be reduced, and the number of constituent members of the wire connector 1 can be reduced. Further, the cut portions 18A and 19A can be stably supported in the base member 4.

In the connector 50A and 50B, the blade portion formed on the tip side of the cutting portions 18A and 19A has a double-edged structure, and the angle of the blade portion may be 15 to 75 °. Within such a range, it is possible to prevent the cut portions 18A and 19A from being crushed when the wire is cut, and it is not necessary to apply an excessive force when cutting the wire.

In the connector 50A and 50B, the blade portion may have a trapezoidal cross-sectional shape by forming a flat portion at the tip of the blade portion. With such a configuration, it is possible to prevent the blade portion from being crushed.

In the connector 50A and 50B, the cutting portions 18A and 19A when viewed from the lateral direction have a blade portion of the first sandwiching portion 21A and 21A with respect to the reference line SL1 extending in the direction in which the first sandwiching portions 21A and 23A stand up. It may be inclined so as to approach the 23A side. As a result, the clearance angles of the cut portions 18A and 19A at the time of cutting can be reduced.

In the connector 50A and 50B, the inclination angle of the cutting portions 18A and 19A with respect to the reference line SL1 may be 1 to 15 °. As a result, the clearance angles of the cut portions 18A and 19A at the time of wire cutting can be reduced.

In the connectors 50A and 50B, the second sandwiching portions 21B and 23B and the first sandwiching portions 21A which are juxtaposed with the first sandwiching portions 21A and 23A and sandwich the second wires 2B and 3B on the tip side. , 23A and the conductive portions 22 and 24 for electrically connecting the second sandwiching portions 21B and 23B may be provided.

The wire connector 1 according to one embodiment of the present invention is attached to the above-mentioned connector 50A, 50B, the base member 4 on which the connector 50A, 50B is arranged, and the base member 4, and the first wire 2A, It is provided with a cap member that presses the 3A and the second wires 2B, 3B against the first sandwiching portions 21A, 23A and the second sandwiching portions 21B, 23B.

According to such a wire connector 1, the same effect as that of the connector 50A and 50B described above can be obtained.

The present invention is not limited to the above-described embodiment.

In the above-described embodiment, the terms “first” and “second” have been used for convenience in each component, but “first” and “second” may be reversed. Further, the cut portion and the temporary pressure contact structure having a plurality of stages may be provided by at least one cap member and the sandwiching portion, and the other cap member and the sandwiching portion may not have the structure.

Further, the shapes of the connector, the base member, and the cap member in the above-described embodiment are merely examples, and the configurations may be appropriately changed as long as the gist of the present invention is satisfied.

Further, in the above-described embodiment, the temporary pressure welding structure relating to the groove width of three stages is provided, but it may be two stages or four or more stages.

1 ... Wire connector, 2A, 3A ... First wire, 2B, 3B ... Second wire, 4 ... Base member, 16, 17 ... Contact part, 18A, 19A ... First cutting part, 18B, 19B ... Second cutting portion, 21A, 23A ... first sandwiching portion, 21B, 23B ... second sandwiching portion, 50A, 50B ... connector, 51A, 51B, 52A, 52B ... relay portion.

Claims (7)

A first sandwiching portion that sandwiches the first wire on the tip side,
The first wire, which is arranged at a position facing at least the first sandwiching portion in the extending direction of the first wire and is sandwiched between the first sandwiching portions, is cut on the tip side. With a cutting part,
The first sandwiching portion and the cutting portion are integrated.
The blade portion formed on the tip side of the cutting portion has a double-edged structure and has a double-edged structure.
The angle of the blade is 15 to 75 ° .
By forming a flat surface portion at the tip of the blade portion, the blade portion has a trapezoidal cross-sectional shape.
A connector characterized by that. The hardness of the metal material constituting the connector is HV140 to 260.
The connector according to claim 1. A relay portion for connecting the base end portions to each other is formed between the cut portion and the first sandwiching portion.
The connector according to claim 1 or 2. The cut portion when viewed from the lateral direction is inclined so that the blade portion approaches the first sandwiching portion side with respect to the reference line extending in the direction in which the first sandwiching portion rises.
The connector according to claim 1. The inclination angle of the cut portion with respect to the reference line is 1 to 15 °.
The connector according to claim 4. A second sandwiching portion that is juxtaposed with the first sandwiching portion and sandwiches the second wire on the tip side,
A connecting portion for electrically connecting the first sandwiching portion and the second sandwiching portion is provided.
The connector according to claim 1, 4 or 5. The connector according to claim 6 and
The base member on which the connector is placed and
A wire connector that is attached to the base member and includes a cap member that presses the first wire and the second wire against the first sandwiching portion and the second sandwiching portion.

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