Insulation displacement connector device, connection structure of insulated core wire, and insulated core wire connection method

Abstract

To provide an insulation displacement connector device, capable of more firmly holding an insulated core wire.SOLUTION: There is provided an insulation displacement connector device 1 that connects one insulated core wire and the other insulated core wire which each include a conductor core wire and an insulation coating surrounding the conductor core wire and which are arranged parallel to each other in opposite directions. The insulation displacement connector device includes one contact 20 and an other contact 40 that are provided to be spaced apart in a direction in which the one insulated core wire and the other insulated core wire extend. The one contact 20 has one first slot corresponding to the one insulated core wire, an other third slot corresponding to the other insulated core wire, and an other cutter provided to a tip side with respect to the other third slot of the other insulated core wire. The other contact 40 has an other first slot corresponding to the other insulated core wire, one third slot corresponding to the one insulated core wire, and one cutter provided on a tip side with respect to the one third slot of the one insulated core wire.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a pressure-displacement connector device, a structure for connecting an insulated core wire, and a method for connecting an insulated core wire. [Background technology]

[0002] IDC connectors (Insulation Displacement Connectors) are widely used as a method for connecting an insulated core wire, which has a conductor core wire and an insulating coating that covers the conductor core wire, to a terminal, or as a method for connecting such insulated core wires together (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 58-214283 Summary of the Invention [Problem to be solved by the invention]

[0004] A pair of insulated core wires extending in parallel in opposite directions are connected using a pressure-displacement connector device. FIG. 12 is a schematic diagram showing how a pair of insulated core wires extending in parallel in opposite directions are connected using the pressure-displacement connector device. FIG. 13 is a perspective view showing a contact used in the pressure-displacement connector device shown in FIG. 12. The pressure-displacement connector device 201 has a contact 220 made of a conductive material and a housing 210 that accommodates the contact 220. The contact 220 is flat and has a pair of slots 223 formed therein with a gap therebetween in the width direction. With the ends of a pair of insulated core wires 200A, 200B inserted into the housing 210, the insulated core wires 200A, 200B are pressed at both ends of the contact 220. As a result, the insulated core wires 200A, 200B enter the slots 223, the coating of each of the insulated core wires 200A, 200B is stripped, and the conductor core wire is gripped in the slots 223 of the contacts 220. The conductor core wires of both insulated core wires 200A, 200B are electrically connected via the contacts 220.

[0005] In a pressure-displacement connector as shown in FIG. 12, each insulated core wire is held by being pinched in a contact slot at one point, which results in low pull-out strength and the problem of the insulated core wires being pulled out.

[0006] SUMMARY OF THE PRESENT INVETION The present invention has been made in consideration of the above problems, and has an object to provide a pressure-displacement connector device that can hold an insulated core wire more firmly. [Means for solving the problem]

[0007] According to one aspect of the present invention, there is provided an insulation displacement connector device for connecting one insulated core wire and another insulated core wire arranged in parallel but opposite directions, each of which has a conductor core wire and an insulating coating surrounding the conductor core wire, the insulation displacement connector device comprising one contact and the other contact spaced apart in the direction in which the one insulated core wire and the other insulated core wire extend, the one contact having one first slot for crimping the one insulated core wire, the other third slot for crimping the other insulated core wire, and the other cutter for cutting an end of the other insulated core wire, the other contact having the other first slot for crimping the other insulated core wire, the one third slot for crimping the one insulated core wire, and one cutter for cutting an end of the one insulated core wire, the one contact and the other contact being held in the housing so as to be movable from a preparation position where an insulated core wire can be inserted into the insulation displacement connector device to a connection position where the contacts and the conductor core wires are electrically connected. According to the above aspect, one insulated core wire is crimped by one first slot and one third slot, and the other insulated core wire is crimped by the other first slot and the other third slot, so that the insulated core wires can be held more firmly. Furthermore, the ends of one insulated core wire and the other insulated core wire are cut by one cutter and the other cutter, so that the number of work steps can be reduced and workability can be improved. Furthermore, since the crimping and cutting of the insulated core wires are performed separately using multiple contacts, the pressing force applied to the contacts during crimping can be reduced.

[0008] According to one aspect of the present invention, one contact further has one second slot for crimping one insulated core wire, and the other contact further has the other second slot for crimping the other insulated core wire. According to the above embodiment, each insulated core wire is crimped at three points, so that the crimped sleeve can have the same tensile strength as the crimped sleeve.

[0009] According to one aspect of the present invention, one contact has a first plate-shaped portion in which a third slot of the other and a second slot of the other are formed, a second plate-shaped portion in which a cutter of the other and a first slot of the other are formed, and a connecting portion connecting the first plate-shaped portion of the one and the second plate-shaped portion of the one, and the other contact has a first plate-shaped portion of the other in which a third slot of the one and a second slot of the other are formed, a second plate-shaped portion in which a cutter of the other and a first slot of the other are formed, and a connecting portion connecting the first plate-shaped portion of the other and the second plate-shaped portion of the other. According to the above embodiment, each contact is provided with three slots and one cutter, which allows multiple crimping and cutting operations to be performed at the same time and prevents the force required to press the slots from becoming excessively large.

[0010] According to one aspect of the present invention, one contact and the other contact have the same shape, and the one contact and the other contact are arranged such that the first slot of one, the second slot of one, the third slot of one, and the cutter of one are aligned in a straight line, and the first slot of the other, the second slot of the other, the third slot of the other, and the cutter of the other are aligned in a straight line. According to the above aspect, the number of types of components can be reduced, and the holding force of each slot can be made uniform.

[0011] According to one aspect of the present invention, the connector further includes a housing having one insertion hole accommodating one of the insulated core wires, another insertion hole extending in the opposite direction to the one insertion hole and accommodating the other insulated core wire, a first guide hole communicating with the one insertion hole and guiding one of the first plate-shaped portions, a second guide hole communicating with the one insertion hole and guiding one of the second plate-shaped portions, a first guide hole communicating with the other insertion hole and guiding the other first plate-shaped portion, and a second guide hole communicating with the other insertion hole and guiding the other second plate-shaped portion. According to the above aspect, since each plate-like portion is guided by the guide hole, the insulated core wire can be pressure-welded in the slot with high precision.

[0012] According to one aspect of the present invention, there is provided a connection structure in which a pair of insulated core wires, each of which has a conductor core wire surrounded by an insulating coating, are connected using the above-mentioned insulation displacement connector device, characterized in that one contact holds each of the pair of insulated core wires and electrically connects the conductor core wires of the pair of insulated core wires, and the other contact holds each of the pair of insulated core wires and electrically connects the conductor core wires of the pair of insulated core wires.

[0013] According to one aspect of the present invention, there is provided a method for connecting one insulated core wire and another insulated core wire arranged in parallel but in opposite directions, each of which has a conductor core wire and an insulating coating surrounding the conductor core wire, using an insulation displacement connector device, the insulation displacement connector device having one contact and the other contact spaced apart in the direction in which the one insulated core wire and the other insulated core wire extend, the one contact having one first slot, the other third slot, and the other cutter, the other contact having the other first slot, the one third slot, and one cutter, one contact being pressed and moved from a preparation position in which the insulated core wire can be inserted into the insulation displacement connector device toward the inside of a housing, thereby the other contact is pressed and moved from a preparation position where an insulated core wire can be inserted into the insulation displacement connector device toward the inside of the housing, thereby stripping a portion of the insulating covering of the other insulated core wire to connect it to the conductor core wire in the other first slot, stripping a portion of the insulating covering of one insulated core wire to connect it to the conductor core wire in the other third slot, and cutting an end of the other insulated core wire with the other cutter; and the other contact is pressed and moved from a preparation position where an insulated core wire can be inserted into the insulation displacement connector device toward the inside of the housing, thereby stripping a portion of the insulating covering of the other insulated core wire to connect it to the conductor core wire in the other first slot, stripping a portion of the insulating covering of one insulated core wire to connect it to the conductor core wire in the one third slot, and cutting an end of one insulated core wire with the one cutter. Effect of the Invention

[0014] According to the present invention, it is possible to provide a insulation displacement connector device capable of more firmly holding an insulated core wire. [Brief description of the drawings]

[0015] [Figure 1] 1 is a perspective view of an insulation displacement connector assembly according to one embodiment of the present invention; [Diagram 2] 2 is a vertical cross-sectional view (cross-sectional view taken along line II-II in FIG. 3) taken along one of the insulated core wire insertion holes into which the insulated core wire is inserted, showing the insulation displacement connector device according to the embodiment of the present invention. [Diagram 3] 3 is a horizontal cross-sectional view (cross-sectional view taken along line III-III in FIG. 2) taken along an insulated core wire insertion hole into which an insulated core wire is inserted, showing the insulation displacement connector device according to the embodiment of the present invention. [Figure 4] 2 is a perspective view showing one contact and the other contact of the insulation displacement connector device according to the present embodiment. FIG. [Diagram 5] FIG. 4 is a top view of the receiving portion of the housing. [Figure 6A] 1 is a perspective view for explaining a method of connecting a pair of insulated core wires using the insulation displacement connector device of the present embodiment. FIG. [Figure 6B] 1 is a perspective view for explaining a method of connecting a pair of insulated core wires using the insulation displacement connector device of the present embodiment. FIG. [Figure 6C] 1 is a perspective view for explaining a method of connecting a pair of insulated core wires using the insulation displacement connector device of the present embodiment. FIG. [Figure 6D] 1 is a perspective view for explaining a method of connecting a pair of insulated core wires using the insulation displacement connector device of the present embodiment. FIG. [Figure 7A] 3 is a longitudinal sectional view corresponding to FIG. 2 for illustrating a method of connecting a pair of insulated core wires using the insulation displacement connector device of the present embodiment. FIG. [Figure 7B] 3 is a longitudinal sectional view corresponding to FIG. 2 for illustrating a method of connecting a pair of insulated core wires using the insulation displacement connector device of the present embodiment. FIG. [Figure 7C]3 is a longitudinal sectional view corresponding to FIG. 2 for illustrating a method of connecting a pair of insulated core wires using the insulation displacement connector device of the present embodiment. FIG. [Figure 7D] 3 is a longitudinal sectional view corresponding to FIG. 2 for illustrating a method of connecting a pair of insulated core wires using the insulation displacement connector device of the present embodiment. FIG. [Figure 8A] 4 is a horizontal cross-sectional view corresponding to FIG. 3 for illustrating a method of connecting a pair of insulated core wires using the insulation displacement connector device of the present embodiment. FIG. [Figure 8B] 4 is a horizontal cross-sectional view corresponding to FIG. 3 for illustrating a method of connecting a pair of insulated core wires using the insulation displacement connector device of the present embodiment. FIG. [Figure 9] 1 is a graph showing the relationship between the moving distance and the pressing force when an insulated core wire is simultaneously pressure-welded into two pressure-welding slots. [Figure 10] 13 is a graph showing the relationship between the moving distance of the cutter member and the pressing force when cutting two insulated core wires having a conductor core wire with a cross-sectional area of ​​2 mm2. [Figure 11] 1 is a graph showing the relationship between the number of slots of a contact that grips one insulated core wire and the pull-out strength. [Figure 12] 1 is a schematic diagram showing how a pair of insulated core wires extending in parallel in opposite directions are connected by a pressure-displacement connector device; [Figure 13] 13 is a perspective view showing a contact used in the insulation displacement connector device shown in FIG. 12. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0016] Hereinafter, an embodiment of the insulation displacement connector device and the method for connecting an insulated core wire according to the present invention will be described in detail with reference to the drawings. In the following description, the direction in which the lid of the housing opens is the upper side, and the direction in which the bottom of the housing is located is the lower side. However, it is not essential that the insulation displacement connector device of this embodiment be used in a position in which the lid is located at the upper side, and the lid may be located at the side or at the lower side.

[0017] 1 to 3 show a pressure-displacement connector device according to an embodiment of the present invention, in which FIG. 1 is a perspective view, FIG. 2 is a vertical sectional view (II-II sectional view in FIG. 3) along one of the insulated core wire insertion holes into which the insulated core wire is inserted, and FIG. 3 is a horizontal sectional view (III-III sectional view in FIG. 2) along the insulated core wire insertion hole into which the insulated core wire is inserted. As shown in FIGS. 1 to 3, the pressure-displacement connector device 1 has a housing 10, one contact 20, and the other contact 40. The pressure-displacement connector device 1 of this embodiment is a device for connecting one insulated core wire 100A having a conductor core wire and an insulating coating provided around the conductor core wire, and the other insulated core wire 100B. One insulated core wire 100A and the other insulated core wire 100B extend parallel to each other in opposite directions. In addition, extending parallel refers to a state in which one insulated core wire 100A and the other insulated core wire 100B are arranged laterally spaced apart or in close contact with each other, and it is not essential that the extending directions of one insulated core wire 100A and the other insulated core wire 100B are parallel.

[0018] Fig. 4 is a perspective view showing one contact and the other contact of the insulation displacement connector device according to this embodiment. Fig. 4 shows the one contact and the other contact as viewed from below. As shown in Fig. 4, the one contact 20 is made of a conductive material and is U-shaped in side view. The one contact 20 has a (one) base 21 having a rectangular plate shape extending horizontally, a (one) first plate-shaped insulation displacement portion 22 extending from one end of the base 21 in a direction perpendicular to the base 21, and a (one) second plate-shaped insulation displacement portion 23 extending from the other end of the base 21 in a direction perpendicular to the base 21. The width and thickness of the base 21, the first plate-shaped insulation displacement portion 22, and the second plate-shaped insulation displacement portion 23 are constant.

[0019] One of the first plate-shaped pressure-displacement portions 22 is formed with one second slot 25 corresponding to one insulated core wire 100A and the other third slot 26 corresponding to the other insulated core wire 100B. One of the second plate-shaped pressure-displacement portions 23 is formed with one first slot 27 corresponding to one insulated core wire 100A and the other cutter 28 corresponding to the other insulated core wire 100B.

[0020] The other contact 40 is formed of the same conductive material as the one contact 20 and has the same shape. The material for forming the one contact 20 and the other contact 40 may be, for example, a copper alloy such as C5191-H (phosphor bronze), but is not limited to this as long as it is a conductive material. The material for forming the one contact 20 and the other contact 40 is preferably the same, but different materials may be used as long as they are sufficiently harder than the conductor core wire. The other contact 40 is formed in a U-shape in side view. The other contact 40 has a (other) base 41 in the shape of a rectangular plate extending horizontally, a (other) first plate-shaped pressure-welding portion 42 extending from one end of the base 41 in a vertical direction relative to the base 41, and a (other) second plate-shaped pressure-welding portion 43 extending from the other end of the base 41 in a vertical direction relative to the base 41. The base portion 41, the first plate-shaped pressure contact portion 42, and the second plate-shaped pressure contact portion 43 have the same width and thickness.

[0021] The other first plate-shaped press-fitting portion 42 is formed with the other second slot 45 corresponding to the other insulated core wire 100B and one third slot 46 corresponding to one insulated core wire 100A. The other second plate-shaped press-fitting portion 43 is formed with the other first slot 47 corresponding to the other insulated core wire 100B and one cutter 48 corresponding to one insulated core wire 100A.

[0022] One of the contacts 20 is arranged such that the first plate-shaped insulation displacement portion 22 is located toward the axial center of the insulation displacement connector device 1 when accommodated in the housing 10. The other contact 40 is arranged such that the first plate-shaped insulation displacement portion 42 is located toward the axial center of the insulation displacement connector device 1 when accommodated in the housing 10.

[0023] In addition, when the first contact 20 and the other contact 40 are arranged in the housing 10, one of the first slots 27 and one of the second slots 25 of the first contact 20 and one of the third slots 46 and one of the cutters 48 of the other contact 40 are positioned on a straight line.

[0024] In addition, when the one contact 20 and the other contact 40 are arranged in the housing 10, the other first slot 47 and the other second slot 45 of the other contact 40 are positioned in a straight line with the one third slot 26 and one cutter 28 of the one contact 20.

[0025] The shapes of the slots 25, 26, 27, 45, 46, 47 formed in the first contact 20 and the second contact 40 are the same, and the widths of the slots 25, 26, 27, 45, 46, 47 are constant, but the widths may be narrowed toward the bottoms of the slots 25, 26, 27, 45, 46, 47. Alternatively, the bottoms of the slots may be widened to accommodate the expansion of the slots that are deformed when the insulated core wire is inserted. The widths of the slots 25, 26, 27, 45, 46, 47 are at least partially (in this embodiment, entirely) narrower than the diameter of the conductor core of the insulated core wire to be connected. The widths of the slots 25, 26, 27, 45, 46, 47 may be the same or different.

[0026] The housing 10 aligns the insulated core wires 100A, 100B with one contact 20 and the other contact 40. The housing 10 has a storage section 60 and a lid section 70 rotatably connected to one edge of the upper surface of the storage section 60. The housing 10 can be manufactured by injection molding a resin such as polypropylene.

[0027] 5 is a top view of the housing's accommodating section. The accommodating section 60 is a rectangular parallelepiped long in the axial direction, and has one insulated core wire insertion hole 61A and the other insulated core wire insertion hole 61B for inserting the insulated core wire. The one insulated core wire insertion hole 61A and the other insulated core wire insertion hole 61B open at both axial end faces of the accommodating section 60, that is, penetrate the accommodating section 60 in the axial direction. The one insulated core wire insertion hole 61A and the other insulated core wire insertion hole 61B communicate with each other in the accommodating section 60, and a partition plate 62 is disposed between the one insulated core wire insertion hole 61A and the other insulated core wire insertion hole 61B. The partition plate 62 may be omitted. One guide tube 63A is erected on the side of the accommodating section 60 on the side where the insulated core wire is inserted (insulated core wire insertion opening side) of the one insulated core wire insertion hole 61A. One guide tube 63A is cylindrical, and one of the insulated core wire insertion holes 61A is continuous with the inside. The side surface on the front side (lower side in FIG. 3) of one guide tube 63A is cut out so as not to interfere with the other insulated core wire 100B inserted into the other insulated core wire insertion hole 61B. The other guide tube 63B is erected on the side surface of the accommodating section 60 on the side where the insulated core wire is inserted into the other insulated core wire insertion hole 61B (insulated core wire insertion opening side). The other guide tube 63B is cylindrical, and the other insulated core wire insertion hole 61B is continuous with the inside. The side surface on the rear side (upper side in FIG. 3) of the other guide tube 63B is cut out so as not to interfere with the one insulated core wire 100A inserted into the one insulated core wire insertion hole 61A.

[0028] 5, a first pressure-connecting guide hole 64A and a second pressure-connecting guide hole 65A are formed in the upper surface of the accommodating section 60 from the axial center toward the insertion opening side of the insulated core wire insertion hole 61A (left side in FIG. 5). Also, a first pressure-connecting guide hole 64B and a second pressure-connecting guide hole 65B are formed in the upper surface of the accommodating section 60 from the axial center toward the insertion opening side of the insulated core wire insertion hole 61B (right side in FIG. 5).

[0029] The first pressure-contact guide hole 64A and the second pressure-contact guide hole 65A are each rectangular, and have a thickness and width that are approximately equal to the first plate-shaped pressure-contact portion 22 and the second plate-shaped pressure-contact portion 23 of the contact 20. As a result, the first pressure-contact guide hole 64A and the second pressure-contact guide hole 65A can respectively insert the first plate-shaped pressure-contact portion 22 and the second plate-shaped pressure-contact portion 23 of the contact 20. The first pressure-contact guide hole 64A and the second pressure-contact guide hole 65A are each connected to the insulated core wire insertion hole 61A. In addition, the portion between the first pressure-contact guide hole 64A and the second pressure-contact guide hole 65A on the upper surface of the accommodating portion 60 is recessed to match the thickness of the base portion 21 of the contact 20.

[0030] The other first pressure-displacement guide hole 64B and the other second pressure-displacement guide hole 65B are each rectangular, and have a thickness and width that are approximately equal to the other first plate-shaped pressure-displacement portion 42 and the other second plate-shaped pressure-displacement portion 43 of the other contact 40. As a result, the other first pressure-displacement guide hole 64B and the other second pressure-displacement guide hole 65B can respectively insert the other first plate-shaped pressure-displacement portion 42 and the other second plate-shaped pressure-displacement portion 43 of the other contact 40. The other first pressure-displacement guide hole 64B and the other second pressure-displacement guide hole 65B are each connected to the other insulated core wire insertion hole 61B. The portion between the other first pressure-displacement guide hole 64B and the other second pressure-displacement guide hole 65B on the upper surface of the accommodating portion 60 is recessed to match the thickness of the base portion 41 of the other contact 40.

[0031] In addition, recesses are formed on the inner wall of the accommodating section 60 to match the first pressure contact guide hole 64A on one side, the second pressure contact guide hole 65A on one side, the first pressure contact guide hole 64B on the other side, and the second pressure contact guide hole 65B on the other side.

[0032] The cover portion 70 has a rectangular plate portion 71 and an engagement portion 72 formed along the edge of the tip side of the plate portion 71.

[0033] The plate portion 71 is a plate-like portion whose middle portion is bent at a right angle so as to fit along the upper and front surfaces of the storage portion 60. The width of the plate portion 71 is equal to the width of the upper surface of the storage portion 60. The engagement portion 72 is provided vertically and inwardly with respect to the plate portion 71.

[0034] Hereinafter, a method for connecting a pair of insulated core wires using the insulation displacement connector device 1 of this embodiment will be described. Figures 6A to 6D, 7A to 7D, and 8A to 8C are diagrams for explaining a method for connecting a pair of insulated core wires using the insulation displacement connector device of this embodiment, with Figures 6A to 6D being perspective views, Figures 7A to 7D being vertical cross-sectional views corresponding to Figure 2, and Figures 8A to 8B being horizontal cross-sectional views corresponding to Figure 3.

[0035] Before the start of connection of the insulated core wires 100A, 100B, the plate portion 71 of the cover portion 70 is open 180 degrees relative to the upper surface of the housing portion 60, and the tips of the first plate-shaped insulation displacement portion 22 and the second plate-shaped insulation displacement portion 23 of one contact 20 are inserted into the first insulation displacement guide hole 64A and the second insulation displacement guide hole 65A of the other contact, respectively (preparation position). Also, the tips of the first plate-shaped insulation displacement portion 42 and the second plate-shaped insulation displacement portion 43 of the other contact 40 are inserted into the first insulation displacement guide hole 64B and the second insulation displacement guide hole 65B of the other contact, respectively. In this state, the tips of the first plate-shaped pressure-displacement portion 22 and the second plate-shaped pressure-displacement portion 23 of one contact 20 and the tips of the first plate-shaped pressure-displacement portion 42 and the second plate-shaped pressure-displacement portion 43 of the other contact 40 do not reach the one insulated core wire insertion hole 61A and the other insulated core wire insertion hole 61B.

[0036] 6A, 7A, and 8A, one insulated core wire 100A is inserted into one insulated core wire insertion hole 61A from the side where one guide tube 63A is formed, with the tip of one insulated core wire 100A protruding from the opposite side surface. Also, the other insulated core wire 100B is inserted into the other insulated core wire insertion hole 61B from the side where the other guide tube 63B is formed, with the tip of the other insulated core wire 100B protruding from the opposite side surface.

[0037] Next, as shown in Fig. 6B and Fig. 7B, the other contact 40 is pressed and pushed into the accommodating portion 60 of the housing 10 using a jig. By pushing the other contact 40, both sides of the other first slot 47 and the other second slot 45 of the other contact 40 strip the coating of one insulated core wire 100A. This exposes the conductor core of one insulated core wire 100A. At the same time, both sides of the one third slot 46 of the other contact 40 strip the coating of one insulated core wire 100A. This exposes the conductor core of one insulated core wire 100A.

[0038] Then, the other contact 40 is further pushed in to move to the connection position, and the side of the exposed conductor core of the other insulated core wire 100B is sandwiched in the other first slot 47 and the other second slot 45. At the same time, the side of the exposed conductor core of the one insulated core wire 100A is sandwiched in the one third slot 46. In this way, the covering of the other insulated core wire 100B engages with the second plate-shaped pressure-displacement portion 43 and the first plate-shaped pressure-displacement portion 42, and the conductor core of the other insulated core wire 100B is held by the other contact 40 in the other first slot 47 and the one second slot 45. In addition, the covering of the one insulated core wire 100A engages with the first plate-shaped pressure-displacement portion 42, and the conductor core of the one insulated core wire 100A is held by the other contact 40 in the one third slot 46. At the same time, the other contact 40 is pushed in, causing one cutter 48 to cut off the excess portion of one insulated core wire 100A.

[0039] Next, as shown in Fig. 6C, Fig. 7C, and Fig. 8B, one of the contacts 20 is pressed and pushed into the accommodating portion 60 of the housing 10 using a jig. By pushing the one of the contacts 20, both sides of one of the first slots 27 and one of the second slots 25 of the one of the contacts 20 strip the coating of one of the insulated core wires 100A. This exposes the conductor core of one of the insulated core wires 100A. At the same time, both sides of the other of the third slots 26 of the one of the contacts 20 strip the coating of the other of the insulated core wires 100B. This exposes the conductor core of the other of the insulated core wires 100B.

[0040] Then, by further pushing in one of the contacts 20, it moves to the connection position, and the side of the exposed conductor core of one of the insulated core wires 100A is sandwiched in one of the first slots 27 and one of the second slots 25. At the same time, the side of the exposed conductor core of the other of the insulated core wires 100B is sandwiched in the other of the third slots 26. In this way, the covering of one of the insulated core wires 100A engages with the second plate-shaped pressure-displacement portion 23 and the first plate-shaped pressure-displacement portion 22, and the conductor core of one of the insulated core wires 100A is held by one of the contacts 20 in one of the first slots 27 and one of the second slots 25. In addition, the covering of the other of the insulated core wires 100B engages with the first plate-shaped pressure-displacement portion 22, and the conductor core of the other of the insulated core wires 100A is held by one of the contacts 20 in the other of the third slots 26. At the same time, one of the contacts 20 is pushed in, causing the other cutter 28 to cut off the excess length of the other insulated core wire 100B.

[0041] 6D and 7D, the lid portion 70 is rotated until the plate portion 71 abuts against the upper surface and front surface of the storage portion 60. This causes the engagement portion 72 to engage with the edge of the lower surface of the front surface of the storage portion 60. As a result, the upper surface of the storage portion 60 is closed by the lid portion 70, and the rotation of the lid portion 70 relative to the storage portion 60 is restricted. In this manner, a connection structure between one insulated core wire 100A and the other insulated core wire 100B is formed.

[0042] According to this embodiment, one insulated core wire 100A is crimped by one first slot 27 and one third slot 46, and the other insulated core wire 100B is crimped by the other first slot 47 and the other third slot 26, so that the insulated core wires 100A and 100B can be held more firmly. Furthermore, the ends of one insulated core wire 100A and the other insulated core wire 100B are cut by one cutter 48 and the other cutter 28, so that the number of work steps can be reduced and the workability can be improved. Furthermore, since the crimping and cutting of the insulated core wires 100A and 100B are performed separately using the multiple contacts 20 and 40, the pressing force applied can be reduced by dividing the contacts 20 and 40 and crimping them when crimping.

[0043] Moreover, according to this embodiment, the one contact 20 further has one second slot 25 for crimping the one insulated core wire 100A, and the other contact 40 further has the other second slot 45 for crimping the other insulated core wire 100B. This allows each of the insulated core wires 100A, 100B to be crimped at three points. By crimping the insulated core wire at three points in this manner, it is possible to provide the same tensile strength as a crimp sleeve, as will be described later.

[0044] According to this embodiment, the contact 20 on one side has the first plate-shaped pressure-displacement portion 22 on one side in which the third slot 26 on the other side and the second slot 25 on one side are formed, the cutter 28 on the other side and the second plate-shaped pressure-displacement portion 23 on one side in which the first slot 27 on one side are formed, and a base 21 connecting the first plate-shaped pressure-displacement portion 22 on one side and the second plate-shaped pressure-displacement portion 23 on one side, and the contact 40 on the other side has the first plate-shaped pressure-displacement portion 42 on the other side in which the third slot 46 on one side and the second slot 45 on the other side are formed, the second plate-shaped pressure-displacement portion 43 on the other side in which the cutter 48 on one side and the first slot 47 on the other side are formed, and a base 41 on the other side connecting the first plate-shaped pressure-displacement portion 42 on the other side and the second plate-shaped pressure-displacement portion 43 on the other side. Thus, according to this embodiment, three slots and one cutter are arranged in each contact. This allows multiple pressure-displacement and cutting operations to be performed at once. Furthermore, the pressing force required per slot in the crimping operation is about 400 N, and the pressing force required to cut the insulated core wires is about 800 N. Therefore, according to this embodiment, the total pressing force required on the contacts to crimp and cut all the insulated core wires at once is a large value of about 3200 N, but by dividing the contacts into two and crimping each separately, it is possible to prevent the force required to press the slot and the cutter from becoming excessively large.

[0045] Furthermore, according to this embodiment, the contact 20 on one side and the contact 40 on the other side have the same shape. This makes it possible to reduce the number of types of members and to equalize the holding force of each slot.

[0046] In addition, according to this embodiment, the housing 10 has one insulated core wire insertion hole 61A that accommodates one insulated core wire 100A, the other insulated core wire insertion hole 61B that extends in the opposite direction to the one insulated core wire insertion hole 61A and accommodates the other insulated core wire 100B, one first pressure welding guide hole 64A that communicates with one insulated core wire insertion hole 61A and guides one first plate-shaped pressure welding portion 22, one second pressure welding guide hole 65A that communicates with one insulated core wire insertion hole 61A and guides one second plate-shaped pressure welding portion 23, the other first pressure welding guide hole 64B that communicates with the other insulated core wire insertion hole 61B and guides the other first plate-shaped pressure welding portion 42, and the other second pressure welding guide hole 65B that communicates with the other insulated core wire insertion hole 61B and guides the other second plate-shaped pressure welding portion 43. According to such a configuration, the plate-shaped press-connecting portions 22, 23, 42, 43 are guided by the guide holes 64A, 64B, 65A, 65B, so that the insulated core wires can be press-connected in the slots with high precision.

[0047] In the above embodiment, one contact 20 has one first slot 27, one second slot 25, the other third slot 26 and the other cutter 28, and the other contact 40 has the other first slot 47, the other second slot 45, one third slot 46 and one cutter 48, but one second slot 25 and the other second slot 45 may be omitted, and one cutter 48 and the other cutter 28 may be omitted.

[0048] The inventors experimentally investigated the force required to press-connect an insulated core wire with a plate-shaped press-connecting member having a slot. In this experiment, the plate-shaped contact 220 shown in FIG. 17 was made of a copper alloy (C2680-EH). The thickness of the contact material was 0.8 mm, and the width of the slot was 0.6 mm. With this type of contact, 2 An insulated core wire having a seven-strand conductor core wire and an insulating coating was pressure welded, and the movement distance in the pressing direction of the contact and the pressing force required to move it were measured.

[0049] Figure 9 is a graph showing the relationship between the travel distance and the pressing force when simultaneously pressing an insulated core wire into two pressure-welding slots. As shown in the figure, 2 It was confirmed that a total pressing force of approximately 800 N is required when simultaneously pressing two insulated core wires having the same conductor core wire using two pressing members attached to one pressing member.

[0050] The inventors also conducted an experimental study of the force required to cut the insulated core wire with a plate-shaped cutter portion. In this experiment, a plate-shaped cutter member having cutters similar to the one cutter 48 and the other cutter 28 of the one contact 20 and the other contact 40 was made from a copper alloy (C5191-H). The thickness of the base of the cutter member was 0.8 mm, the thickness of the cutter tip was 0.1 mm, and the angle of the tip was 30°. With such a member, a cutter with a cross-sectional area of ​​2 mm 2 An insulated core wire having a seven-stranded conductor core wire and an insulating coating was pressed, and the movement distance of the cutter member in the pressing direction and the pressing force required for the movement were measured.

[0051] Figure 10 shows the relationship between the travel distance of the cutter and the cross-sectional area of ​​the cutter. 2 This is a graph showing the relationship between the pressing force and the cutting force when cutting two insulated core wires with a conductor core of 2 mm2. 2 It was confirmed that a pressing force of about 800 N is required to simultaneously cut two insulated wires having a conductor core with one cutter member.

[0052] The inventors also experimentally investigated the number of crimping points by contacts equipped with slots required to provide sufficient resistance to pull-out of the insulated core wire. In this experiment, plate-shaped contacts having slots were made of copper alloy (C2680-EH) in the same manner as the first plate-shaped crimping portions 22, 42 and the second plate-shaped crimping portions 23, 43 of the one contact 20 and the other contact 40. The width of the slot was 0.6 mm, and the thickness of the contact material was 0.8 mm. One, two, and three such contacts equipped with slots were used to create a contact with a cross-sectional area of ​​2 mm 2The pull-out strength at which the insulated core wire could no longer be held was measured for each of the insulated core wires having the conductor core wire and insulating coating.

[0053] Figure 11 is a graph showing the relationship between the number of slots in a contact that grips one insulated core wire and the pull-out strength. For comparison, R shows the pull-out strength when the insulated core wire is connected using a crimp sleeve. As shown in the figure, it was confirmed that by crimping the insulated core wire using a contact with three slots, it is possible to obtain the same pull-out strength as when a crimp sleeve is used. [Explanation of symbols]

[0054] 1: Pressure connector device 10: Housing 20: One contact 21: Base 22: First plate-shaped pressure-welding portion 23: Second plate-shaped pressure-welded portion 25: Second slot on one side 26: The other third slot 27: First slot on one side 28: The other cutter 40: Other contact 41: Base 42: First plate-shaped pressure-welding portion 43: Second plate-shaped pressure-welded portion 45: The other second slot 46: Third slot on one side 47: The other first slot 48: One cutter 60: Storage section 61A: One of the insulated core wire insertion holes 61B: The other insulated core wire insertion hole 62: Partition plate 63A: One guide tube 63B: The other guide tube 64A: First pressure-welding guide hole on one side 64B: One of the first pressure-welding guide holes 65A: The other second pressure-welding guide hole 65B: The other second pressure-welding guide hole 70: Lid 71: Board part 72: Engagement part 100A: One insulated core 100B: The other insulated core

Claims

1. A pressure-displacement connector device for connecting one insulated core wire and another insulated core wire arranged in parallel in opposite directions, each of which includes a conductor core wire and an insulating coating surrounding the conductor core wire, the first contact and the second contact are spaced apart in a direction in which the first insulated core wire and the second cable extend, The one contact is a first slot for crimping the one insulated core wire; a third slot for crimping the other insulated conductor; and a second cutter for cutting the end of the second insulated core wire; The other contact is the other first slot for crimping the other insulated core wire; a third slot for crimping the one insulated core wire; and a cutter for cutting an end of the one insulated core wire; having an insulation displacement connector device, characterized in that the one contact and the other contact are held in a housing so as to be movable from a preparatory position where the insulated core wire can be inserted into the insulation displacement connector device to a connection position where the contact and the conductor core wire are electrically connected.

2. The one contact is a second slot for crimping the one insulated core wire; The other contact is the other second slot for crimping the other insulated core wire; 2. The insulation displacement connector assembly of claim 1.

3. The one contact is a first plate-shaped portion in which the other third slot and the one second slot are formed; and a second plate-shaped portion on one side in which the other cutter and the one first slot are formed; and a connecting portion that connects the one first plate-shaped portion and the one second plate-shaped portion, The other contact is the other first plate-shaped portion having the one third slot and the other second slot formed therein; the other second plate-shaped portion having the one cutter and the other first slot formed therein; and and a second connecting portion connecting the other first plate-shaped portion and the other second plate-shaped portion.

3. The insulation displacement connector assembly of claim 2.

4. the one contact and the other contact have the same shape, the one contact and the other contact are arranged such that the first slot of the one contact, the second slot of the one contact, the third slot of the one contact, and the one cutter are positioned on a straight line, and the first slot of the other contact, the second slot of the other contact, the third slot of the other contact, and the other cutter are positioned on a straight line; 4. The insulation displacement connector assembly of claim 3.

5. Further, the device includes a housing, The housing includes: an insertion hole for accommodating the one insulated core wire; another insertion hole extending in a direction opposite to the one insertion hole and accommodating the other insulated core wire; a first guide hole communicating with the one insertion hole and guiding the one first plate-shaped portion; a second guide hole communicating with the one insertion hole and guiding the one second plate-shaped portion; a second first guide hole communicating with the second insertion hole and guiding the second first plate-shaped portion; a second guide hole that communicates with the other insertion hole and guides the other second plate-shaped portion; having 4. The insulation displacement connector assembly of claim 3.

6. A connection structure in which a pair of insulated core wires, each having a conductor core wire surrounded by an insulating coating, are connected by the insulation displacement connector device according to any one of claims 1 to 5, the one contact holds each of the pair of insulated core wires and electrically connects the conductor core wires of the pair of insulated core wires; the other contact holds each of the pair of insulated core wires and electrically connects the conductor core wires of the pair of insulated core wires.

7. A method for connecting two insulated core wires, each of which includes a conductor core wire and an insulating coating surrounding the conductor core wire, the two insulated core wires being arranged in parallel in opposite directions to each other, using a pressure-disconnecting connector device, comprising: The insulation displacement connector device comprises: a first contact and a second contact spaced apart from each other in a direction in which the first insulated core wire and the second insulated core wire extend, the one contact has one first slot, the other third slot, and the other cutter; the other contact has the other first slot, one third slot, and one cutter; Pressing the one contact, the insulation displacement connector device is moved from a preparation position in which the insulated core wire can be inserted toward the inside of the housing; This means: a part of the insulating coating of the one of the insulated core wires is stripped off to electrically connect the one of the insulated core wires to the conductor core wire in the one of the first slots; a part of the insulating coating of the other insulated core wire is stripped off to electrically connect the other insulated core wire to the conductor core wire in the third slot of the other insulated core wire; a contact pressing step of cutting the end of the other insulated core wire with the other cutter; The other contact is pressed to move the insulation displacement connector device from a preparation position in which the insulated core wire can be inserted toward the inside of the housing, thereby a part of the insulating coating of the other insulated core wire is stripped to electrically connect the other insulated core wire to the conductor core wire in the other first slot; a part of the insulating coating of the one of the insulated core wires is stripped off to electrically connect the one of the insulated core wires to the conductor core wire in the one of the third slots; a step of cutting an end of the one insulated core wire with the one cutter and pressing the other contact; The insulated core connecting method includes:

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