Connection terminal and assembled electric wire provided with said connection terminal

Abstract

To securely and easily fix a connection terminal to another connection terminal so as to communicate with an insertion hole in the other connection terminal.SOLUTION: A connection terminal includes a wire connecting portion 23 for connecting a wire 2, and an assembly connection portion 22 having an insertion hole 24 for inserting a fixing bolt 3 and to be assembled with a connection portion 12 having an insertion hole 16 in an assembly connection terminal 11, and the assembly connection portion 22 includes slide guide portions (26a, 26b) that guide the slide of the connection portion 12, and fixing portions (28, 29a) that fix the slid connection portion 12 to the assembly connection portion 22 at positions where the insertion holes 16 and 24 communicate with each other.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a connection terminal having an electric wire connection portion for connecting an electric wire and an assembly connection portion for assembling the connection portion of another connection terminal, and to an assembly electric wire in which an electric wire is connected to both the electric wire connection portions of the connection terminal and the other connection terminal, and the connection portion and the assembly connection portion are assembled together. [Background technology]

[0002] For example, in order to ground connection terminals at the ends of multiple earth wires provided in a wire harness to a ground circuit in a vehicle body, it has been conventional to stack the multiple connection terminals on top of each other and fasten them together to the ground circuit with a fixing bolt, thereby collectively grounding the multiple earth wires to a single ground circuit.

[0003] Various techniques have been proposed for connecting such a plurality of connection terminals to a ground circuit, as exemplified in Patent Document 1. Patent Document 1 discloses a joint device that is disposed in a ground circuit and has a spring therein in order to stably contact the stacked connection terminals with each other and between the connection terminals and the ground circuit.

[0004] Incidentally, when fastening the connection terminal to the ground circuit with a fixing bolt, including the case where the joint device of Patent Document 1 is provided, the fixing bolt is inserted into an insertion hole formed through the connection portion of the connection terminal. However, when fastening a plurality of connection terminals with one fixing bolt, the above-mentioned fixing bolt must be inserted through each of the insertion holes of the plurality of connection terminals, which is time-consuming.

[0005] Therefore, the conventional practice is to temporarily fix multiple earth wires near their ends with tape, for example, so that the insertion holes of multiple connection terminals are connected to each other, and then insert one fixing bolt through multiple insertion holes at the same time.

[0006] However, when wrapping tape around the ends of multiple earth wires, various factors such as the fact that the tape is wrapped around the connection portion rather than directly around the connection portion itself having an insertion hole, and the fact that the tape itself is elastic, could cause the multiple connection terminals to become misaligned, resulting in a risk of the insertion holes not communicating with each other between the multiple connection terminals.

[0007] In this case, it is time-consuming to correct the positional misalignment of the multiple connection terminals so that their respective insertion holes are connected to each other, and there is a risk that the multiple terminals may be misaligned or tilted, making it impossible to ensure a sufficient contact area with each other and therefore conductivity, and therefore impossible to stably ground to the ground circuit. [Prior art documents] [Patent documents]

[0008] [Patent Document 1] Japanese Patent Application Publication No. 11-55823 Summary of the Invention [Problem to be solved by the invention]

[0009] SUMMARY OF THE PRESENT DISCLOSURE An object of the present invention is to provide a connection terminal that can be reliably and easily fixed to another connection terminal so as to communicate with an insertion hole in the other connection terminal, and an assembled electric wire. [Means for solving the problem]

[0010] The connection terminal of the present invention includes an electric wire connection portion for connecting an electric wire, and an assembly connection portion having an insertion hole for inserting a fixing bolt and for assembling a connection portion having an insertion hole in another connection terminal, the assembly connection portion including a slide guide portion for guiding the sliding of the connection portion, and a fixing portion for fixing the slid connection portion to the assembly connection portion at a position where the insertion holes communicate with each other. The assembly connection portion has an opposing surface that faces a main surface of the connection portion having the insertion hole, and the opposing surface has the insertion hole, the assembly connection portion is provided with a side surface that stands up from a side of the opposing surface, and the opposing surfaces have a pair that face each other on both sides in a thickness direction of the main surface, and the side surface connects the pair of opposing surfaces laterally, the assembly connection portion is box-shaped having an insertion opening between the pair of opposing surfaces into which the connection portion can be inserted, and a deformation promoting portion is provided on the side surface that promotes deformation of the side surface in a direction in which the pair of opposing surfaces approach each other and sandwich the connection portion by fastening the fixing bolt inserted through the insertion hole. It is characterized by:

[0011] According to the above configuration, the connecting portion can be slidably guided by the slide guide portion to the position where the insertion holes communicate with each other. Furthermore, the connecting portion can be fixed by the fixing portion at the position where the insertion holes communicate with each other. According to this configuration, the connection portion can be fixed to the assembly connection portion such that the insertion holes communicate with each other.

[0012] Therefore, fixing bolts can be easily inserted into each of the insertion holes of the connection portion and the assembly connection portion, and by tightening the fixing bolts, the connection portion and the assembly connection portion can be assembled while reliably ensuring their mutual conductivity.

[0013] For example, when grounding both the assembly connection part and the connection part to a ground circuit, the assembly connection part and the connection part can be fastened together to the ground circuit in the vehicle body with a fixing bolt or the like inserted into an insertion hole that connects the assembly connection part and the connection part to each other, thereby ensuring reliable and easy grounding.

[0014] The assembly connection portion has an opposing surface that faces a main surface of the connection portion that has the insertion hole, and the opposing surface has the insertion hole.

[0015] According to the above configuration, the connection portion and the assembly connection portion can be fastened with fixing bolts inserted into the respective insertion holes, so that the main surface and the opposing surface can be firmly adhered to each other in face-to-face contact, thereby ensuring stable conductivity between the connection portion and the assembly connection portion.

[0016] Furthermore, according to the above configuration, when the connection portion is slidably guided relative to the assembly connection portion, the main surface can be stably slid relative to the opposing surface that is in surface contact with the main surface, thereby enabling easy and accurate guiding.

[0017] The assembly connection portion is configured to have a side surface erected from the side of the opposing surface. According to this configuration, when the connection portion is slid and assembled relative to the assembly connection portion, the side surface can function as the slide guide portion. Furthermore, according to the above-described configuration, when the connection portion is fastened with the fixing bolt, the side surface can restrict the connection portion from rotating inadvertently relative to the assembly connection portion.

[0018] In addition, the opposing surfaces have a pair opposing each other on both sides in the thickness direction of the main surface, the side surfaces connect the pair of opposing surfaces laterally, the assembly connection portion is box-shaped having an insertion opening between the pair of opposing surfaces into which the connection portion can be inserted, and the side surfaces are provided with a deformation promoting portion that promotes deformation of the side surfaces in a direction in which the pair of opposing surfaces approach each other and sandwich the connection portion by tightening the fixing bolt inserted into the insertion hole.

[0019] According to the above configuration, the connection portion can be easily disposed between the pair of opposing surfaces by inserting the connection portion into the box-shaped assembly connection portion through the insertion opening.

[0020] Furthermore, according to the above-mentioned configuration, the deformation promoting portion can easily deform the side surfaces in a direction in which the pair of opposing surfaces approach each other when the fixing bolt is fastened, thereby making it possible to maintain a firm electrical connection between the pair of opposing surfaces and the connection portion disposed between them in surface contact with each other.

[0021] As an aspect of the present invention, the electric wire connecting portion may be arranged so that, in an assembled state, the electric wire extending in the same direction as an electric wire connected to the other connection terminal is connected to the electric wire connecting portion. According to the above configuration, when the assembly connection portion and the connection portion are assembled, the electric wire connected to the electric wire connection portion (connection terminal) and the electric wire connected to the other connection terminal can be arranged in the same direction, while the respective insertion holes of the connection terminal and the other connection terminal can be made to communicate with each other, and a fixing bolt can be easily inserted into these insertion holes.

[0022] As a further aspect of the present invention, the slide guide portion may be a locking portion that locks onto an outer circumferential edge of the connection portion so that the assembly connection portion is slidable in a circumferential direction relative to the connection portion.

[0023] According to the above configuration, the engaging portion engages with the outer peripheral edge of the connection portion while guiding the assembly connection portion circumferentially relative to the connection portion, so that the insertion holes are less likely to shift position and can be guided into the desired position while remaining connected to each other. Therefore, the assembly connection portion and the connection portion can be easily assembled in a desired position.

[0024] As a further aspect of the present invention, a bolt holding means may be provided on the opposing surface around the periphery of the insertion hole for holding the inserted fixing bolt while allowing it to rotate about its axis. According to the above-mentioned configuration, once the fixing bolt is inserted into the insertion hole, the fixing bolt can be held by the bolt holding means so as not to come out of the insertion hole. Therefore, the connection terminal can be temporarily fixed to another connection terminal by the fixing bolt, and the connection terminal can be easily carried to the installation location, for example.

[0025] Furthermore, when fastening the connection terminal to the mounting location using a fixing bolt, there is no need to prepare a fixing bolt separately from the connection member, or to insert the fixing bolt into each of the insertion holes in the opposing surface of the assembly connection part and the main surface of the connection part, and the connection terminal can be easily fastened to the mounting location together with other connection terminals using the fixing bolts inserted into each insertion hole.

[0026] In another aspect of the present invention, the fixing portion may be a restricting portion that restricts movement of the connection portion inserted through the insertion opening in a removal direction. According to the above configuration, the restricting portion can restrict movement of the connection portion inserted into the assembly connection portion so that the connection portion does not inadvertently slip out of the insertion opening. Therefore, the restricting portion can maintain the assembly state in which the connection portion is inserted into the assembly connection portion.

[0027] In addition, as an aspect of the present invention, the wire connection portion may be provided on one of the opposing surfaces and positioned so as not to overlap the insertion opening when viewed from the insertion direction of the connection portion into the insertion opening.

[0028] According to the above configuration, when the electric wire connection portion is provided on one of the opposing surfaces and the connection portion is inserted into the assembly connection portion from the insertion opening, the connection portion can be inserted smoothly without interfering with the electric wire connection portion.

[0029] In addition, as an aspect of the present invention, the wire connection portion may be provided on one of the side surfaces and positioned so as not to overlap the insertion opening when viewed from the insertion direction of the connection portion into the insertion opening.

[0030] According to the above configuration, when the electric wire connection portion is provided on one of the side surfaces and the connection portion is inserted from the insertion opening into the inside of the assembly connection portion, the connection portion can be inserted smoothly without interfering with the electric wire connection portion.

[0031] As a further aspect of the present invention, the electric wire connecting portion may be configured as an auxiliary fixing portion that assists the fixing portion in fixing the assembly connecting portion.

[0032] According to the above configuration, the fixing portion can cooperate with the wire connection portion as the auxiliary fixing portion to firmly fix the assembly connection portion at a position where the insertion holes of the slid connection portion communicate with each other.

[0033] In addition, the assembled electric wire of the present invention is characterized in that it is provided with the above-mentioned connection terminal and the other connection terminal having the electric wire connection portion, and an electric wire is connected to both electric wire connection portions, and the connection portion and the assembled connection portion are assembled together in a state in which the insertion holes are connected to each other.

[0034] According to the above configuration, the connection portion and the assembly connection portion are assembled to each other with their respective insertion holes in communication, so that fixing bolts can be easily inserted into these insertion holes, and by tightening the fixing bolts, the connection portion and the assembly connection portion can be assembled in a state where their mutual conductivity is reliably ensured.

[0035] As an aspect of the present invention, the electric wire connected to the connection terminal and the electric wire connected to the other connection terminal may be oriented in the same direction. According to the above configuration, when the assembly connection portion and the connection portion are assembled, the electric wire connected to the connection terminal and the electric wire connected to the other connection terminal can be arranged in the same direction, while the respective insertion holes of the connection terminal and the other connection terminal can be made to be in a state of communication with each other, and fixing bolts can be easily inserted into these insertion holes.

[0036] In addition, as an aspect of the present invention, the other connection terminal may be provided with a plurality of connection terminal pieces each having a connection piece forming part of the connection portion and the wire connection portion, and may be configured as a combined connection terminal in which the connection pieces are stacked together to form the connection portion.

[0037] According to this configuration, the insertion holes of the connection portion of the combination connection terminal and the assembly connection portion can be brought into communication with each other. Therefore, by fastening the fixing bolt, the connection terminal and the mating connection terminal can be assembled in a state in which electrical continuity between them is reliably ensured.

[0038] As a further aspect of the present invention, the plurality of combination connection terminals may be combined so that the main surfaces face in the same direction.

[0039] According to the above configuration, the main surface of any one of the plurality of combination connection terminals can be brought into surface-to-surface contact with the opposing surface opposite to the main surface. This ensures excellent electrical conductivity between the main surface and the opposing surface when fastened with the fixing bolt.

[0040] In another aspect of the present invention, the plurality of combination connection terminals may be combined so that the main surfaces face in opposite directions. According to the above-described configuration, the main surfaces can be brought into surface contact with each other, so that excellent electrical conductivity between the main surfaces can be ensured when fastened with the fixing bolt. Effect of the Invention

[0041] According to the present invention, it is possible to provide a connection terminal that can be reliably and easily fixed to another connection terminal so as to communicate with an insertion hole in the other connection terminal, and an assembled electric wire. [Brief description of the drawings]

[0042] [Figure 1] 1A is a plan view showing a main part of an assembled electric wire of this embodiment, FIG. 1B is a front view seen from the base end side in the longitudinal direction, FIG. 1C is a rear view seen from the tip end side in the longitudinal direction, and FIG. 1D is a side view seen from one side in the width direction. [Diagram 2] (a) is a cross-sectional view taken along line AA in FIG. 2(a), and (b) is a cross-sectional view taken along line BB in FIG. 2(d). [Diagram 3] 2(a) shows the procedure for assembling the connection part of a combination connection terminal to a box-shaped assembly connection part, with (a) showing the state before assembly, (b) showing the state during grounding, and (c) showing the completed assembly state, each shown in a cross section corresponding to FIG. 2(a). [Figure 4]2(a) and 2(b) are explanatory diagrams showing a procedure for grounding a connection portion and an assembly connection portion to a ground circuit, in cross sections corresponding to FIG. 2(a) in a state before grounding and in a state after grounding is completed. [Diagram 5] 1A is a plan view showing a main part of an assembled electric wire according to the embodiment, FIG. 1B is a front view seen from the base end side in the longitudinal direction, and FIG. 1C is a side view seen from one side in the width direction. [Figure 6] 1A is a plan view showing a main part of an assembled electric wire of the first modified example, FIG. 1B is a front view seen from the base end side in the longitudinal direction, FIG. 1C is a rear view seen from the tip end side in the longitudinal direction, FIG. 1D is a side view seen from one side in the width direction, and FIG. 1E is a side view seen from the other side in the width direction. [Figure 7] 7A, 7B, and 7C are explanatory diagrams showing the procedure for assembling the connection portion of the combination connection terminal to the assembly connection portion of variant example 1, with FIG. 7A showing the state before assembly, FIG. 7B showing the state during assembly, and FIG. 7C showing the state after assembly is completed, each corresponding to FIG. 6A. [Figure 8] 1A is a plan view showing a main portion of an assembled electric wire of modified example 2, FIG. 1B is a front view seen from the tip end side in the longitudinal direction, FIG. 1C is a rear view seen from the base end side in the longitudinal direction, FIG. 1D is a side view seen from one side in the width direction, FIG. 1E is a cross-sectional view taken along line CC in FIG. 1A, FIG. 1F is a cross-sectional view taken along line DD in FIG. 1A, and FIG. 1G is a cross-sectional view taken along line EE in FIG. [Figure 9] 8(a) and 8(b) are explanatory views showing a procedure for assembling the connection portion of the combination connection terminal to the assembly connection portion of the modified example 2, in which (a) shows a state before assembling and (b) shows a state after assembling is completed, respectively, corresponding to (a) of FIG. 8(a). [Figure 10] 5A and 5B are explanatory diagrams showing the state in which the connection portions of multiple combination connection terminals are assembled to an assembly connection portion, with the cross sections corresponding to FIG. 3C, with the main surfaces facing in the same direction in FIG. 5A and the main surfaces facing in the opposite direction in FIG. [Figure 11] 4(a) is a plan view showing the periphery of an insertion hole of an assembly connection portion according to another modified example, and FIG. 4(b) is an explanatory view showing an embodiment of the assembly connection portion according to another modified example in a cross section corresponding to FIG. 3(c). DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0043] An embodiment of the present invention will now be described with reference to the drawings. In the drawing, arrow Y indicates the longitudinal direction, arrow X indicates the width direction, and arrow Z indicates the up-down direction. Furthermore, arrow Ya indicates the tip side in the longitudinal direction, arrow Yb indicates the base side in the longitudinal direction, arrow Xa indicates one side in the width direction, arrow Xb indicates the other side in the width direction, arrow Za indicates the upward direction, and arrow Zb indicates the downward direction.

[0044] The assembled electric wire 1 of this embodiment is configured by assembling together terminal fittings (11, 21) connected to the ends of a plurality of electric wires 2 (see FIG. 3(c)). In the following, an embodiment will be described in which such an assembled electric wire 1 is applied to an earth connection structure in which the assembled electric wire 1 is fastened to a predetermined ground circuit 100 in a vehicle body with a fixing bolt 3 for earthing, as shown in FIG. 4(b).

[0045] As shown in Figs. 2(a)(b) and 3(a)(b), the multiple electric wires 2 (2a, 2b) constituting the assembled electric wire 1 are each composed of a conductor portion 4 formed by bundling multiple conductive core wires and an insulating coating portion 5 having insulating properties and covering the entire outer periphery of the conductor portion 4, and are used as an earth wire.

[0046] The assembled electric wire 1 of this embodiment is provided with three electric wires 2 (see Figure 2 (a) and Figures 3 (a) and (b)), each of which has a terminal fitting (11, 21) connected to its end portion (the end portion that is connected to earth). Specifically, as shown in Fig. 2(b), two of the three electric wires 2a have ends connected to a common combination connection terminal 11. As shown in Fig. 2(a), the remaining electric wire 2b of the three electric wires 2 has an end connected to a connection terminal 21.

[0047] The combination connection terminal 11 is a known terminal fitting, and as shown in Figures 2(b) and 3(a), is provided with a connection portion 12 that is indirectly connected to the ground circuit 100 in the vehicle body via a connection terminal 21, and an electric wire connection portion 13 that is connected to the end portion of the electric wire 2, as described above.

[0048] As shown in the figure, the connection portion 12 has a main surface 14 and an extension portion 15. An insertion hole 16 having an inner diameter sufficient for the insertion of a fixing bolt 3 (see FIG. 4(a)) is formed penetrating in the plate thickness direction at the center of the main surface 14 of the connection portion 12 as viewed from the front. The main surface 14 in this embodiment is formed in the shape of a flat plate that is larger than the size of the head of the fixing bolt 3 as viewed in plan and has a rectangular shape as viewed in plan.

[0049] 3(a), the extending portion 15 is integrally formed with an extending surface 15a and a bent piece 15b. The extending surface 15a is integrally formed with the main surface 14 so as to extend from a tip edge portion in the longitudinal direction of the main surface 14 onto substantially the same plane as the main surface 14. The bent piece 15b is provided at the tip of the extending portion 15 and is formed by bending it downward.

[0050] Incidentally, as shown in FIG. 4(a), when the connection terminal 21 is grounded (placed) on the flat periphery 102 of the bolt insertion hole 101 of the ground circuit 100 on the vehicle body side, an engaging portion 103 capable of engaging with the bent piece 15b is formed at a position opposite the bent piece 15b.

[0051] The bent piece 15b is engaged with the engaged portion 103, thereby restricting the combination connection terminal 11 from accidentally rotating about the axial direction of the insertion hole 16 in a plan view. In this embodiment, the engaged portion 103 is formed by the end of the vehicle body frame that functions as the ground circuit 100, but is not particularly limited as long as it is configured to be engaged with the bent piece 15b, and may be configured, for example, to be formed by a step that descends one step relative to the periphery 102 of the bolt insertion hole 101.

[0052] That is, the bent piece 15b functions as a rotation stopper for the connection part 12. As shown in Fig. 2(b), the extension surface 15a of the extension part 15 is formed in a generally trapezoidal shape in a plan view so that the width gradually decreases from the base end to the tip in the extension direction (longitudinal direction). Also, the connection part 12 is formed in a generally flat plate shape over the entirety except for the bent piece 15b.

[0053] As shown in Figures 2(b) and 3(a), the above-mentioned combination connecting terminal 11 is provided with a pair of a first connecting terminal piece 110 and a second connecting terminal piece 111, and both of these first connecting terminal piece 110 and second connecting terminal piece 111 are made conductive by press molding or the like of plate material made of metal material.

[0054] 2(b), the first connection terminal piece 110 has a plate-shaped first connection piece 110a forming a part of the above-mentioned connection portion 12, and an electric wire connection portion 13a (also referred to as the first electric wire connection portion 13a). The second connection terminal piece 111 has a plate-shaped second connection piece 111a forming a part of the above-mentioned connection portion 12, and an electric wire connection portion 13b (also referred to as the second electric wire connection portion 13b). The first connection piece 110a and the second connection piece 111a are formed symmetrically (upside-down) with respect to the middle position in the width direction.

[0055] The combination connection terminal 11 is integrally formed by combining the first connection terminal piece 110 and the second connection terminal piece 111 such that the first connection piece 110a and the second connection piece 111a are stacked. In this manner, the first connection piece 110a and the second connection piece 111a are stacked together to form the connection portion 12 at the tip end side in the longitudinal direction of the combination connection terminal 11. The extension portion 15 is formed only by the tip end portion in the longitudinal direction of the first connection piece 110a.

[0056] On the other hand, as shown in FIG. 2(b), the base end side in the longitudinal direction of the combination connection terminal 11 is provided with a pair of wire connection portions 13 (a first wire connection portion 13a and a second wire connection portion 13b) arranged in parallel at a predetermined interval in the width direction.

[0057] The pair of wire connection portions 13 each extend from the edge of the base end of the connection portion 12 in the longitudinal direction toward the base end in a substantially horizontal and linear manner so as to coincide with the longitudinal direction, and are arranged approximately parallel to each other at a predetermined interval in the width direction.

[0058] The electric wire connecting portion 13 has a barrel piece 6 that can be crimped and connected (crimped) to the end portion of the electric wire 2a. The barrel piece 6 has a so-called open barrel shape, and includes a conductor barrel piece 6a connected to the conductor portion 4 exposed at the end portion of the electric wire 2a by removing the insulating coating portion 5, and a coating barrel piece 6b connected to the end portion of the insulating coating portion 5. The conductor barrel piece 6a and the coating barrel piece 6b are arranged in series corresponding to the end portion of the conductor portion 4 and the end portion of the insulating coating portion 5 in the longitudinal direction of the electric wire connection portion 13.

[0059] 3(a), the lower surface of the combination connection terminal 11 is substantially flush across the substantially flat connection portion 12 and the electric wire connection portion 13. On the other hand, since the end portion of the electric wire 2a is connected to the electric wire connection portion 13 by the barrel piece 6, the combination connection terminal 11 has the electric wire connection portion 13 formed to be higher than the connection portion 12.

[0060] As shown in FIGS. 1(a) to (d) and 2(a), a connection terminal 21 includes an assembly connection portion 22 and an electric wire connection portion 23, and is entirely formed from a plate material made of a metal material. The assembly connection part 22 is assembled to the connection part 12 of the combination connection terminal 11 (see Figure 3 (c)), and has an insertion hole 24 for inserting the fixing bolt 3, and is directly connected to the ground circuit 100 by the fixing bolt 3 inserted into the insertion hole 24 (see Figures 4 (a) and (b)).

[0061] As shown in FIGS. 2(b) and 3(c), the assembly connection portion 22 is formed in a box shape having an internal space 22s capable of accommodating at least the main surface 14 of the connection portion 12 of the combination connection terminal 11 therein.

[0062] Specifically, when the main surface 14 of the assembly connection portion 22 in the combination connection terminal 11 is accommodated in the internal space 22s, the assembly connection portion 22 has a pair of opposing surfaces 25 (upper opposing surface 25a and lower opposing surface 25b) facing the main surface 14 on both sides in the vertical direction (thickness direction), and vertical wall-like side surfaces 26 that connect the pair of opposing surfaces 25 to each other in the height direction at the outer edges of the pair of opposing surfaces 25.

[0063] In this embodiment, as shown in FIGS. 1(a) to (d), the assembly connection portion 22 is formed in a rectangular parallelepiped shape with a short height (vertical direction) compared to its longitudinal and widthwise lengths.

[0064] 1(b), the outer peripheral edge of the pair of opposing surfaces 25 corresponding to the base end side in the longitudinal direction is not provided with a side surface 26, and is provided with an insertion opening 27 through which the connection part 12 of the combination connection terminal 11 can be inserted into the internal space 22s. In this embodiment, the assembly connection part 22 is opened by the insertion opening 27 over the entire base end side in the longitudinal direction.

[0065] 1(b)(c) and 2(a), the pair of opposing surfaces 25 are formed in parallel to each other in the vertical direction and are formed in the same shape as flat plates. In this embodiment, the pair of opposing surfaces 25 are both formed in a rectangular shape (approximately square shape) having approximately the same length in the longitudinal direction and the width direction (see FIG. 1(a)).

[0066] A through hole 24 having a circular shape in plan view and through which the fixing bolt 3 can be inserted is formed in each of the pair of opposing surfaces 25 at approximately the center when viewed from the front, penetrating the plate thickness direction (vertical direction). The respective through holes 24 of the pair of opposing surfaces 25 communicate with each other in the vertical direction.

[0067] 2(b) and 4(a), in a state where the connection portion 12 of the combination connection terminal 11 is accommodated in the internal space 22s of the box-shaped assembly connection portion 22, the insertion hole 16 of the connection portion 12 is arranged at a position where it communicates in the up-down direction (the insertion direction of the fixing bolt 3) with each of the insertion holes 24 of a pair of opposing surfaces 25 of the assembly connection portion 22. At this time, the connection portion 12 is fixed (positioned) relative to the assembly connection portion 22 by a fixing portion to be described later, and is in an assembled state with the assembly connection portion 22. Here, as shown in Figures 2(b) and 3(c), the position where the connection portion 12 is arranged in the internal space 22s of the assembly connection portion 22 so that the insertion hole 16 of the connection portion 12 and the insertion hole 24 of the assembly connection portion 22 are in communication with each other is set as the assembly position Pa.

[0068] 2(b), the side surface 26 has a pair of side side surfaces 26a, 26b located at both edge portions in the width direction of the assembly connection portion 22, and a tip side side surface 26c located at an edge portion on the tip side in the longitudinal direction of the assembly connection portion 22. The pair of side side surfaces 26a, 26b and the tip side side surface 26c are all formed like vertical walls in the up-down direction, and connect the pair of opposing surfaces 25 between them.

[0069] As shown in Figures 1(c) and 2(b), an extension portion insertion opening 29 is provided in the widthwise central portion of the tip side surface 26c, which allows the extension portion 15 of the connection portion 12 (the connection portion 12 arranged at the assembly position Pa) in the assembled state in the internal space 22s to protrude outward from the internal space 22s. As shown in FIG. 2(b) and FIG. 3(c), in the assembled state, the connecting portion 12 is in a state where the extending portion 15 is inserted into the extending portion insertion opening 29 when viewed from the internal space 22s.

[0070] 2(b), in a state in which the extension portion 15 of the connection portion 12 protrudes outward from the extension portion insertion opening 29 into the internal space 22s, the widthwise edges opposite the ends 29a are engaged with both widthwise ends 29a of the extension portion insertion opening 29. As a result, the connection portion 12 is positioned at the assembly position Pa in the internal space 22s such that the extension portion 15 faces the longitudinal tip. That is, the connection portion 12 is prevented from rotating by both widthwise ends 29a of the extension portion insertion opening 29.

[0071] 1(b), 1(c), and 1(d), a pair of lateral side surfaces 26 (26a, 26b) are provided with deformation promoting portions 35 that promote deformation of the lateral side surfaces 26a, 26b in the direction in which the pair of opposing surfaces 25 approach each other when the box-shaped assembly connection portion 22 is assembled with the connection portion 12 and fastened to the ground circuit 100 by fixing bolts 3 inserted into the insertion holes 16, 24 as described below (see FIGS. 4(a) and 4(b)). The deformation promoting portion 35 is a groove portion formed in a concave shape in the plate thickness direction (width direction) along the longitudinal direction in the middle portion in the height direction of the outer and inner surfaces of the lateral side surfaces 26a, 26b.

[0072] Such deformation promoting portions 35 thin and weaken portions of the lateral surfaces 26a, 26b, so that the deformation promoting portions 35 become the starting points for bending deformation of the lateral surfaces 26a, 26b, thereby promoting the deformation of the lateral surfaces 26a, 26b.

[0073] However, it is sufficient that the deformation promoting portion 35 is formed on at least one of the outer and inner surfaces of the side side surfaces 26a, 26b, and the deformation promoting portion 35 is not limited to a groove portion, and is not particularly limited as long as it has a structure that promotes deformation, such as a hole portion (non-through hole) or a through hole formed in a concave shape in the plate thickness direction. Furthermore, as described above, in this embodiment, the deformation promoting portion 35 is formed on the pair of side side surfaces 26a, 26b, but it may be configured to be formed on at least one of the pair of side side surfaces 26a, 26b and the tip side surface 26c.

[0074] 1(a) and (d), the wire connection portion 23 of the connection terminal 21 is formed into a three-dimensional shape by pressing a plate material or the like, and is provided with a conductor barrel piece 7a and a covering barrel piece 7b as the open barrel-shaped barrel piece 7, similar to the wire connection portion 13 of the combination connection terminal 11. The conductor barrel piece 7a and the covering barrel piece 7b are disposed in series from the tip side to the base end side in the longitudinal direction of the wire connection portion 13, except for the tip side portion.

[0075] The electric wire connection portion 23 of the connection terminal 21 of this embodiment is provided in the box-shaped assembly connection portion 22 of the connection terminal 21 at a widthwise intermediate position on the edge on the base end side in the longitudinal direction of the upper opposing surface 25a.

[0076] The electric wire connection portion 23 extends in a straight line and horizontally in a cantilever manner from the assembly connection portion 22 toward the base end in the longitudinal direction, and the tip end portion in the longitudinal direction is fixed to the above-mentioned intermediate position of the upper opposing surface 25a while ensuring electrical conductivity. As a result, as shown in FIG. 1(b), the electric wire connection portion 23 of the connection terminal 21 does not interfere with the insertion opening 27 when the insertion opening 27 is viewed from the base end side in the longitudinal direction (when viewed from the insertion direction).

[0077] As shown in Figures 1(b)(c) and 2(a)(b), the above-mentioned assembly connection part 22 is provided with a slide guide part and a fixing part that positions and fixes the slid connection part 12 to the assembly connection part 22 at the assembly position Pa.

[0078] The slide guide portion in this embodiment is constituted by the pair of lateral sides 26a, 26b described above. In other words, when the connection portion 12 of the combination connection terminal 11 is inserted into the internal space 22s of the assembly connection portion 22 from the insertion opening 27 or while it is inserted, it abuts appropriately against the inner surfaces of a pair of lateral sides 26a, 26b and slides toward the tip end in the longitudinal direction while being guided to the assembly position Pa in the internal space 22s.

[0079] The fixed portion in this embodiment is composed of a rotation prevention portion and a slip-out prevention portion. The anti-rotation restricting portion is formed by both widthwise ends 29a, 29a of the extension insertion opening 29 on the tip side surface 26c of the assembly connection portion 22 (see Figs. 1(c) and 2(b)).

[0080] As shown in Figures 1(b)(c) and 2(a)(b), the anti-slip prevention portion is formed of a pair of protruding pieces 28 that protrude in opposite directions in the vertical direction of the internal space 22s so as to be able to engage the connection portion 12 in the assembled state so as not to slip out of the internal space 22s.

[0081] In this embodiment, of the pair of protruding pieces 28, the upper protruding piece 28 is formed to protrude downward (inner surface) at the midpoint in the width direction on the longitudinal base end side edge of the upper opposing surface 25a, and the lower protruding piece 28 is formed to protrude upward (inner surface) at the midpoint in the width direction on the longitudinal base end side edge of the lower opposing surface 25b. That is, the pair of protruding pieces 28 are formed toward the extension-portion insertion opening 29 at intermediate positions in the width direction of the upper and lower edges of the extension-portion insertion opening 29 .

[0082] As shown in FIG. 2(a), in this embodiment, the pair of protruding pieces 28 are each formed with a protruding length that brings them close to each other in the internal space 22s, and are formed with a protruding shape in which the longitudinal thickness gradually decreases toward the tip in the protruding direction.

[0083] Furthermore, as shown in the same figure, the pair of protruding pieces 28 have both longitudinal surfaces extending in the vertical direction, and the longitudinal tip surface 28a is formed as a vertical surface that is perpendicular to the opposing surface 25 when viewed from the side, while the longitudinal base end surface 28b is formed as an inclined surface that slopes toward the side approaching the longitudinal tip surface 28a as it approaches the tip in the protruding direction.

[0084] As a result, as shown in Figure 3(b), the pair of protruding pieces 28 are each formed with a protruding shape that is easily flexible and deformed toward the tip end in the longitudinal direction, but is less likely to flexible and deform toward the base end in the longitudinal direction, allowing the connection portion 12 to slide only toward the tip end in the longitudinal direction.

[0085] On the other hand, as shown in Figs. 2(b) and 3(c), the pair of protruding pieces 28 restore to the shape before the bending deformation when the connection portion 12 of the combination connection terminal 11 is in the assembled state. Specifically, the pair of electric wire connection parts 13 of the combination connection terminal 11 extend in two directions from the connection part 12 toward the base end side in the longitudinal direction (see FIG. 2(b)). Therefore, when the connection part 12 of the combination connection terminal 11 is in an assembled state, the pair of protruding pieces 28 are located at the base parts of the pair of electric wire connection parts 13, at a position pm between the pair of electric wire connection parts 13 in the width direction (hereinafter referred to as the "base part middle position pm") (see FIG. 2(b)).

[0086] As a result, when the connection portion 12 of the combination connection terminal 11 is in the assembled state, the pair of protruding pieces 28 are not subjected to external force caused by the abutment of the combination connection terminal 11, and therefore return to the shape before the bending deformation, as shown in Figure 3 (c).

[0087] If the combined connection terminal 11 were to inadvertently slide from the assembly position Pa toward the base end in the longitudinal direction, the base end of the connection portion 12 in the longitudinal direction would come into contact with at least one of the pair of protruding pieces 28. As a result, the pair of protruding pieces 28 restrict the connection portion 12 from sliding in a direction in which it comes out of the internal space 22s (i.e., from the assembly position Pa toward the base end in the longitudinal direction).

[0088] In this embodiment, the pair of protrusions 28 are integrally formed as part of the assembly connection portion 22. However, as long as only the tip end side in the longitudinal direction is capable of elastic deformation (flexural deformation), the material, shape, etc. are not particularly limited; for example, the protrusions may be formed from a separate member from the assembly connection portion 22 and attached to the assembly connection portion 22 later.

[0089] Next, an example of a procedure for assembling one connection terminal 21 and one combination connection terminal 11 to each other and fastening them to the ground circuit 100 in the vehicle body with the fixing bolt 3 will be described. However, it is assumed that the combination connection terminal 11 and the connection terminal 21 are both connected to the ends of the corresponding electric wires 2a, 2b.

[0090] First, as shown in FIG. 3( a ), the connection portion 12 of the combination connection terminal 11 is inserted into the internal space 22 s of the box-shaped assembled connection portion 22 of the connection terminal 21 through the insertion opening 27 . In this case, the combination connection terminal 11 is inserted into the internal space 22s with the barrel piece 6 of the electric wire connecting portion 13 facing upward.

[0091] At that time, the longitudinal tip end of the connection portion 12 of the combination connection terminal 11 abuts against at least one of the pair of protruding pieces 28 from the longitudinal base end side (outside the internal space 22s). 3(b), the protruding piece 28 against which the connecting portion 12 abuts is bent and deformed so as to collapse toward the tip end in the longitudinal direction, allowing the connecting portion 12 to be inserted into the internal space 22s from the insertion opening 27. Furthermore, the connecting portion 12 is slidably guided to the assembly position Pa in the internal space 22s by the pair of lateral side surfaces 26a, 26b.

[0092] 3(c), in a state where the connection part 12 is arranged at the assembly position Pa, the connection part 12 is fixed (positioned) by being engaged with the rotation prevention part (both ends 29a in the width direction of the extension part insertion opening 29) and the slip-out prevention part (the pair of protruding pieces 28) as fixing parts, and is assembled to the assembly connection part 22. At this time, the insertion hole 16 of the connection part 12 and the insertion hole 24 of the assembly connection part 22 are in communication in the vertical direction.

[0093] Furthermore, as shown in FIG. 4(a), the connection terminal 21 assembled with the combination connection terminal 11 is grounded with the lower opposing surface 25b in surface contact with the flat peripheral edge 102 of the bolt insertion hole 101 of the ground circuit 100.

[0094] At this time, the insertion hole 24 of the assembly connection portion 22 (a pair of opposing surfaces 25a, 25b) of the connection terminal 21, the insertion hole 16 of the connection portion 12 of the combined connection terminal 11, and the bolt insertion hole 101 of the ground circuit 100 are in communication in the vertical direction.

[0095] Meanwhile, a nut 9 is fixed to the periphery 102 of the bolt insertion hole 101 of the ground circuit 100 (body frame) on the side opposite to the side where the lower opposing surface 25b is grounded. Therefore, with the fixing bolt 3 inserted through each of the insertion holes 16, 24 of the connection part 12 and the assembly connection part 22, the connection part 12 and the assembly connection part 22 are fastened to the ground circuit 100 using the fixing bolt 3 and the nut 9.

[0096] At that time, the assembly connection portion 22 is compressed between the ground circuit 100 and the head of the fixing bolt 3, and the deformation of the pair of lateral side surfaces 26a, 26b is promoted by the deformation promoting portion 35, so that the main surface 14 of the connection portion 12 can be fastened in a state of close surface contact with each of the pair of opposing surfaces 25a, 25b, as shown in FIG. 4(b).

[0097] As a result, the connecting portion 12 and the assembled connecting portion 22 which are assembled to each other can be mounted in a conductive state to the ground circuit 100 . Specifically, the lower opposed surface 25b of the assembly connection portion 22 directly contacts the ground circuit 100 (the peripheral portion of the bolt insertion hole 101 in the vehicle body frame), and the connection portion 12 indirectly contacts the ground circuit 100 via the lower opposed surface 25b, and both are in a conductive state with respect to the ground circuit 100. As a result, both the connection terminal 21 and the combination connection terminal 11 can be electrically grounded to the ground circuit 100.

[0098] The pair of opposing surfaces 25 has a function of vertically guiding the connection part 12 that slides to the assembly position Pa, and also has a function of fixing (positioning) the connection part 12 so that it does not slide inadvertently in the vertical direction in the assembled state. For this reason, the pair of opposing surfaces 25 may be considered to be included in a slide guide part or a part of a fixed part. In addition, when the pair of side side surfaces 26a, 26b have a function of fixing (positioning) the connection part 12 so that it does not slide inadvertently in the vertical direction in the assembled state, the side side surfaces 26a, 26b may be considered as a fixed part as well as a slide guide part. Furthermore, the tip side surface 26c may also be considered as a slide guide part or a fixed part as appropriate depending on whether it has a slide guide function or a fixing function for the connection part 12, as described above.

[0099] As shown in Figures 1(a) to (d) and Figures 2(a) and (b), the connection terminal 21 of the above-mentioned embodiment is provided with an electric wire connection portion 23 for connecting an electric wire 2, and an assembly connection portion 22 having an insertion hole 24 for inserting a fixing bolt 3 and being assembled with a connection portion 12 having an insertion hole 16 in a combination connection terminal 11 as another connection terminal, and is characterized in that the assembly connection portion 22 is provided with a pair of lateral side surfaces 26a, 26b as slide guide portions for guiding the sliding of the connection portion 12, and both widthwise ends 29a and a pair of protruding pieces 28 of an extension portion insertion opening 29 as fixing portions for fixing the slid connection portion 12 to the assembly connection portion 22 at a position (assembly position Pa) where the insertion holes 16, 24 communicate with each other.

[0100] According to the above configuration, the slide guide portions (26a, 26b) can slide and guide the connection portion 12 to a position where the insertion holes 16, 24 communicate with each other. Furthermore, the connection portion 12 can be fixed by the fixing portions (28, 29a) at the position where the insertion holes 16, 24 communicate with each other. As a result, according to the above-described configuration, the connection portion 12 can be fixed to the assembly connection portion 22 such that the insertion holes 16, 24 communicate with each other.

[0101] Therefore, the fixing bolt 3 can be easily inserted into each insertion hole 16, 24 of the connection portion 12 and the assembly connection portion 22, and by tightening the fixing bolt 3, the connection portion 12 and the assembly connection portion 22 can be assembled while reliably ensuring their mutual conductivity.

[0102] For example, as in this embodiment, when both the connection portion 12 and the assembly connection portion 22 are grounded to the ground circuit 100, the connection portion 12 and the assembly connection portion 22 can be securely and easily grounded by fastening them together to the ground circuit 100 in the vehicle body with a fixing bolt 3 or the like inserted into the insertion holes 16, 24 that communicate with each other.

[0103] Furthermore, as shown in Figures 1(a)(d) and 3(c), in the assembled state of the connection portion 12 and the assembly connection portion 22, the electric wire connection portion 23 is positioned so that the electric wire 2b extending in the same direction as the electric wire 2a connected to the combination connection terminal 11 is connected thereto.

[0104] According to the above configuration, when the connection portion 12 and the assembly connection portion 22 are assembled, the electric wire 2b connected to the electric wire connection portion 23 (connection terminal 21) and the electric wire 2a connected to the combined connection terminal 11 can be arranged in the same direction, while the respective insertion holes 16, 24 of the combined connection terminal 11 and the connection terminal 21 can be made to communicate with each other, and the fixing bolt 3 can be easily inserted into these insertion holes 16, 24.

[0105] Also, as shown in Figures 2(b) and 3(c), the assembly connection portion 22 has an opposing surface 25 that faces the main surface 14 of the connection portion 12, which has the insertion hole 16, and has an insertion hole 24 in the opposing surface 25.

[0106] According to the above configuration, when the connection portion 12 and the assembly connection portion 22 are fastened with the fixing bolt 3 inserted through the respective insertion holes 16, 24, the main surface 14 and the opposing surface 25 can be firmly adhered to each other in a state of surface contact, as shown in Figure 4 (b), so that the conductivity between the connection portion 12 and the assembly connection portion 22 can be stably ensured.

[0107] Furthermore, according to the above configuration, when the connection portion 12 is slidably guided relative to the assembly connection portion 22, the main surface 14 can be stably slid relative to the lower opposing surface 25b which is in surface contact with the main surface 14, thereby enabling easy and accurate guiding.

[0108] As shown in FIGS. 1(b), 1(c) and 2(b), the assembly connection portion 22 is provided with lateral side surfaces 26a and 26b extending upright from the sides of the opposing surface 25. As shown in FIG. According to the above-described configuration, when the connection portion 12 is slid and assembled relative to the assembly connection portion 22, the lateral side surfaces 26a, 26b can function as slide guide portions. Furthermore, according to the above-described configuration, when the fixing bolt 3 is fastened, the connection portion 12 can be restricted from the sides by the lateral side surfaces 26a, 26b so as not to rotate inadvertently relative to the assembly connection portion 22.

[0109] 1(a)-(d) and 2(a)-(b), the opposing surfaces 25 have a pair facing each other on both sides in the thickness direction (up-down direction) relative to the main surface 14, and the lateral side surfaces 26a, 26b connect the pair of opposing surfaces 25 laterally. The assembly connection portion 22 is box-shaped and has an insertion opening 27 between the pair of opposing surfaces 25 through which the connection portion 12 can be inserted into the internal space 22s (inside). Furthermore, as shown in Figures 1(b), (c), and (d), the lateral sides 26a, 26b are provided with a deformation promoting portion 35 that promotes deformation of the lateral sides 26a, 26b in the direction in which the pair of opposing surfaces 25 approach each other and sandwich the connection portion 12 by tightening the fixing bolt 3 inserted into the insertion hole 24.

[0110] According to the above-described configuration, the connection part 12 is inserted into the internal space 22s of the box-shaped assembly connection part 22 through the insertion opening 27, so that the connection part 12 can be easily disposed between the pair of opposing surfaces 25.

[0111] Furthermore, according to the above configuration, the deformation promoting portion 35 can easily deform the side surface 26 in a direction in which the pair of opposing surfaces 25 approach each other when the fixing bolt 3 is fastened. This makes it possible to maintain the pair of opposing surfaces 25 and the connection portion 12 disposed therebetween in a state of surface contact with each other and firmly electrically connected, as shown in FIG. 4(b).

[0112] As shown in FIGS. 2(b) and 3(c), the fixing portion is a pair of protruding pieces 28 (regulating portion) that regulate the movement of the connection portion 12 inserted from the insertion opening 27 in the removal direction. According to the above-mentioned configuration, the movement of the connection part 12 inserted into the inside of the assembly connection part 22 can be restricted by the pair of protruding pieces 28 so that the connection part 12 does not inadvertently slip out of the insertion opening 27. Therefore, the pair of protruding pieces 28 can keep the connection part 12 inserted inside the assembly connection part 22.

[0113] Also, as shown in Figures 1(a) and (b), the electric wire connection portion 23 is provided on the upper opposing surface 25a and is positioned so as not to overlap the insertion opening 27 when viewed from the insertion direction (the base end side in the longitudinal direction) of the connection portion 12 into the insertion opening 27. According to the above configuration, when the connection portion 12 is inserted into the internal space 22s of the assembly connection portion 22 from the insertion opening 27 while the electric wire connection portion 23 is provided on the upper opposing surface 25a, the connection portion 12 can be inserted smoothly without interfering with the electric wire connection portion 23.

[0114] Furthermore, according to the above configuration, the electric wire connection portion 23 is provided on the upper opposing surface 25a, and therefore can be arranged in a direction in which it is stacked vertically relative to the electric wire connection portion 13 of the combination connection terminal 11 (see FIG. 3(c)). In addition, the electric wire connection portion 23 is extended from the center of the upper edge of the insertion opening 27 of the upper opposing surface 25a toward the base end in the longitudinal direction, so that the electric wire 2b connected to the electric wire connection portion 23 and the electric wire 2a connected to the combination connection terminal 11 can be arranged coaxially.

[0115] 5(a), 5(b), and 5(c), in a connection terminal 21' associated with the connection terminal 21 of the above-described embodiment, the electric wire connection portion 23 is not provided on the upper opposing surface 25a as described above, but is provided on one of the side surfaces 26a, 26b on both sides in the width direction (here, the side surface 26a on one side in the width direction). However, even in this case, the electric wire connection portion 23 is arranged at a position not overlapping the insertion opening 27A when viewed from the insertion direction of the connection portion 12 into the insertion opening 27.

[0116] According to the above configuration, when the connection portion 12 is inserted from the insertion opening 27 into the internal space 22s of the assembly connection portion 22 while the electric wire connection portion 23 is provided on one lateral side surface 26a, the connection portion 12 can be inserted smoothly without interfering with the electric wire connection portion 23.

[0117] Furthermore, according to the above configuration, the electric wire connection portion 23 is provided on one lateral side surface 26a, and therefore can be disposed adjacent to the electric wire connection portion 13 of the combination connection terminal 11 in the width direction. Therefore, in a state in which the connection portion 12 and the assembly connection portion 22 are fastened with the fixing bolt 3, the connection terminal 21 and the combination connection terminal 11 can be disposed compactly.

[0118] Next, an assembled electric wire according to a modified example of the present invention will be described. However, the same reference numerals are used for the same features as those in the above-mentioned embodiment, and the description thereof will be omitted.

[0119] (Variation 1) The combined connection terminal 11A in the assembled electric wire 1A of the modified example 1 (see FIG. 7(c)) is different from the combined connection terminal 11 of the above-described embodiment in that, as shown in FIG. 7(a), the connection portion 12A does not have an extension portion 15 (see FIG. 2(b)), and the connection portion 12A is formed by a main surface 14A that is substantially entirely circular and flat in plan view.

[0120] 6(a), 6(b), and 6(c), the pair of opposing surfaces 25A (25Aa, 25Ab) of the connection terminal 21A (assembly connection portion 22A) in the assembled electric wire 1A of the first modification are formed to have the same size as each other, and are each formed to have a perfect circular shape in a plan view of the same size as the connection portion 12A of the combined connection terminal 11A. The side surface 26A is formed only on a part of the circumference of the pair of opposing surfaces 25A (one side in the width direction in this example). The electric wire connection portion 23 has a tip end in the longitudinal direction joined to the base end side of the side surface 26A. As a result, the electric wire connection portion 23 is extended from the side surface 26A toward the base end side in the longitudinal direction.

[0121] A first locking claw 31 is formed on the other widthwise side and on the longitudinal tip side of the lower opposing surface 25Ab of the assembly connection part 22A. As shown in Fig. 6(e), the first locking claw 31 is integrally formed with a base part 31a protruding radially outward and a tip part 31b protruding upward from the tip of the base part.

[0122] The tip portion 31b of the first locking claw 31 is formed to protrude upward from the vertical middle position of the internal space 22s. As a result, the distance La (see FIG. 6(e)) between the tip (upper end) of the tip portion 31b of the first locking claw 31 in the internal space 22s and the lower surface of the upper opposing surface 25Aa is set narrower than the vertical thickness of the connection portion 12A of the combination connection terminal 11A.

[0123] On the other hand, as shown in Fig. 6(a), a second locking claw 32 is formed on the other side in the width direction and on the base end side in the longitudinal direction of the lower opposing surface 25Ab of the assembly connection part 22A. As shown in Fig. 6(b), the second locking claw 32 is integrally formed of a base part 32a and a tip part 32b, similar to the first locking claw 31.

[0124] The tip portion 32b of the second locking claw 32 is formed to protrude upward to the middle position in the vertical direction of the internal space 22s. As a result, the distance Lb (see FIG. 6(e)) between the tip (upper end) of the tip portion 32b of the second locking claw 32 in the internal space 22s and the lower surface of the upper opposing surface 25Aa is set to be wider than the vertical thickness of the connection portion 12A of the combination connection terminal 11A. In other words, the tip portion 32b of the second locking claw 32 is formed to have a shorter protruding length than the tip portion 31b of the first locking claw 31.

[0125] 6(b) and (e), the insertion opening 27A corresponds to a vertical gap between the outer peripheries of the pair of opposing surfaces 25A of the assembly connection part 22A. Furthermore, as shown in FIG. 6(a), the insertion opening 27A corresponds to a gap on the side where the second locking claw 32 is provided, between the side surface 26A and the first locking claw 31, in the circumferential direction of the assembly connection part 22A. The insertion opening 27A is formed to have a size that allows the connection part 12A of the combination connection terminal 11A to be inserted into the internal space 22s.

[0126] Next, an example of a procedure for assembling the connection terminal 21A and the mating connection terminal 11A will be described. As shown in Figure 7(a), the worker slides the connection terminal 21A linearly toward the base end in the longitudinal direction (see the thick arrow in Figure 7(a)) and inserts the connection portion 12A of the combination connection terminal 11A from the insertion opening 27A into the internal space 22s of the assembly connection portion 22A. As described above, the connecting terminal 21A is not limited to being slid toward the base end side in the longitudinal direction, and the combined connecting terminal 11A may be slid toward the tip end side in the longitudinal direction.

[0127] In the first modification, the second locking claw 32 is provided at a portion corresponding to the lower edge of the insertion opening 27A so as to protrude toward the insertion opening 27A (upward) (see FIG. 6(b)), but the second locking claw 32 is set at a low height as described above. Therefore, the worker inserts the connection part 12A of the combination connection terminal 11A in a horizontal position into the internal space 22s from between the second locking claw 32 and the upper edge of the insertion opening 27A, climbing over the second locking claw 32. This allows the connection part 12A to be inserted into the internal space 22s without interfering with the second locking claw 32.

[0128] As shown in FIG. 7(b), the connection part 12A of the combination connection terminal 11A is inserted in the internal space 22s until it abuts against the side surface 26A and the inner surface of the first locking claw 31, and is restricted from sliding further toward the tip end in the longitudinal direction. Such a position of the connection part 12A relative to the assembly connection part 22A is set as the linear movement restriction position Pb. When the assembly connection part 22A is located at the linear movement restriction position Pb, the connection part 12A and the assembly connection part 22A can be in a state in which the insertion holes 16, 24 communicate with each other. When the assembly connection part 22A is located at the linear movement restriction position Pb, the second locking claw 32 is located at the above-mentioned root part intermediate position pm of the combination connection terminal 11A (see FIG. 7(b)).

[0129] Furthermore, the worker rotates the connection part 12A from the straight movement restriction position Pb counterclockwise in a plan view relative to the assembly connection part 22A (see the thick arrow in FIG. 7(b)). However, the second locking claw 32 located at the root portion intermediate position pm is locked to the second wire connecting portion 13b of the combination connection terminal 11A, so that the assembly connection portion 22A is restricted from rotating counterclockwise in a plan view.

[0130] Therefore, the worker lifts the combination connection terminal 11A placed on the lower opposing surface 25Ab in the internal space 22s in a substantially horizontal position above the tip 32b of the low-profile second locking claw 32. This releases the engagement of the second electric wire connection portion 13b by the second locking claw 32. Then, in this state, the worker rotates the connection terminal 21A counterclockwise in a plan view relative to the combination connection terminal 11A with the center of the insertion hole 24 as the rotation center.

[0131] This allows the worker to rotate the connection terminal 21A (assembly connection portion 22A) relative to the combination connection terminal 11A so that the second locking claw 32 straddles the second wire connection portion 13b in the circumferential direction without interfering with the second wire connection portion 13b of the combination connection terminal 11A.

[0132] At this time, the first locking claw 31 and the side surface 26A guide the assembly connection part 22A to rotate counterclockwise while their respective inner surfaces are locked to the periphery of the circular connection part 12A.

[0133] 7(c), the electric wire connection portion 23 of the connection terminal 21A eventually comes into contact with the first electric wire connection portion 13a of the assembly connection portion 22A from one side in the width direction, restricting further counterclockwise rotation of the connection terminal 21A. At that time, the first locking claw 31 and the side surface 26A fix (position) the assembly connection portion 22A relative to the connection portion 12A while being locked to the periphery of the circular connection portion 12A.

[0134] 7(c), the second locking claw 32 is located at a position pn near the edge on the other side in the width direction of the root portion of the second electric wire connecting portion 13b, and locks the root portion of the second electric wire connecting portion 13b from the other side in the width direction. As a result, the second locking claw 32 as a fixing portion and the electric wire connecting portion 23 as a fixing auxiliary portion in the connection terminal 21A sandwich the pair of electric wire connecting portions 13 of the combined connection terminal 11A from both sides in the width direction to fix (position) them. That is, the connection portion 12A of the combination connection terminal 11A and the assembly connection portion 22A of the connection terminal 21A are in an assembled state at the assembly position Pa.

[0135] The procedure for mounting the assembled connection portion 22A and the connection portion 12A in an assembled state to the ground circuit 100 using the fixing bolt 3 is the same as in the above-described embodiment, and therefore a description thereof will be omitted.

[0136] As shown in Figures 6(a)(b)(c)(d), the slide guide portion of variant example 1 is a locking portion that locks onto the outer peripheral edge of connection portion 12A so that the assembly connection portion 22A can slide circumferentially relative to connection portion 12A, specifically, a first locking claw 31 and a side surface 26A.

[0137] According to the above configuration, the locking portions (26A, 31) lock onto the outer peripheral edge of the connection portion 12A while guiding the assembly connection portion 22A circumferentially relative to the connection portion 12A, so that the insertion holes 16, 24 are less likely to shift position and can be guided to the desired position while remaining connected to each other. Therefore, the assembly connection part 22A and the connection part 12A can be easily assembled in a desired position.

[0138] (Variation 2) The connection terminal 21B (assembly connection portion 22B) in the assembled electric wire 1B of the modified example 2 (see FIG. 9(b)) differs from the connection terminal 21A of the modified example 1 in that, as shown in FIG. 8(b), the connection terminal 21B does not have a lower opposing surface 25Ab (see FIG. 6(b)) and only has an upper opposing surface 25Ba that is approximately circular in plan view. The combination connection terminal 11A is formed in the same form as the combination connection terminal 11A of the first modified example (see FIG. 9(a)).

[0139] As shown in FIGS. 8(b), (c), and (d), an assembly connection portion 22B of the second modification includes a first locking claw 41, a second locking claw 42, and a side surface 26B. The side surface 26B is provided on one edge in the width direction of the upper opposing surface 25Ba, and the longitudinal base end of the side surface 26B is integrally connected to the longitudinal tip end of the electric wire connection part 23. As a result, the electric wire connection part 23 extends linearly from the side surface 26B to the longitudinal tip side in a direction coinciding with the longitudinal direction.

[0140] The first locking claw 41 is disposed on the other widthwise side and the longitudinal tip side of the periphery of the assembly connection portion 22B, and the second locking claw 42 is disposed on the other widthwise side and the longitudinal base end side.

[0141] As shown in Figure 8 (e), the first locking claw 41 is integrally formed with a radially outer extending portion 41a extending radially outward from a corresponding portion on the periphery of the upper opposing surface 25Ba, a standing portion 41b standing downward from the radially outer end of the radially outer extending portion 41a, and a support portion 41c extending radially inward from the lower end of the standing portion 41b and supporting the connection portion 12A of the combination connection terminal 11A.

[0142] As shown in Figures 8(f) and (g), the second engagement claw 42 and the side surface 26B are each integrally formed with a radially outer extending portion 42a, 26Ba extending radially outward from corresponding portions on the periphery of the upper opposing surface 25Ba, upright portions 42b, 26Bb erected downward from the radially outer ends of the radially outer extending portions 42a, 26Ba, support portions 42c, 26Bc extending radially inward from the lower ends of the upright portions 42b, 26Bb and supporting the connection portion 12A of the combination connection terminal 11A, and step portions 42d, 26Bd provided at the corner portions of the upright portions 42b, 26Bb and the support portions 42c, 26Bc when viewed in an orthogonal cross section along the radial direction.

[0143] The first locking claw 41 and the erected portions 41b, 26Bb of the side surface 26B are provided at positions where their inner surfaces can abut against the outer periphery of the connection portion 12A when the assembly connection portion 22B and the connection portion 12A are in an assembled state (see FIG. 9(b)).

[0144] As shown in Figures 8(e), (f), and (g), the first locking claw 41, the second locking claw 42, and each support portion 41c, 42c, and 26Bc of the side surface 26B are provided in a position where they can support the connection portion 12A from below when the assembly connection portion 22B and the connection portion 12A are in the assembled state, and the upper surfaces of each support portion 41c, 42c, and 26Bc are formed horizontally and at the same height as each other so as to be able to support the connection portion 12A horizontally.

[0145] As shown in Figures 8(f) and (g), each step 42d, 26Bd of the second engagement claw 42 and the side surface 26B is formed by a stepped support portion 42e, 26Be extending approximately horizontally radially inward from the lower end of the upright portion 42b, 26Bb, and a vertical wall portion 42f, 26Bf that vertically connects the radial inner end of the stepped support portion 42e and the radial outer end of the support portion 42c, 26Bc.

[0146] The stepped support portions 42e, 26Be are provided at a height corresponding to the vertical middle position of the space 22Bs directly below. However, the distance between the stepped support portions 42e, 26Be and the lower surface of the upper opposing surface 25Ba in the space 22Bs is set to be wider than the vertical thickness of the connection portion 12A of the combination connection terminal 11A.

[0147] In addition, in the assembly connection portion 22B in the second modified example, the space directly below the upper opposing surface 25Ba and above the first locking claw 41, the second locking claw 42, and the upper surfaces of the support portions 41c, 42c, and 26Bc of the side surface 26B is defined as a direct below space 22Bs.

[0148] 8(a) and 8(b), the insertion opening 27B is an opening located on the periphery of the direct space 22Bs between the upright portions 42b, 26Bb of the second locking claw 42 and the side surface 26B on the side where the first locking claw 41 is not provided. The insertion opening 27B is formed with a size that allows the connection portion 12A of the combination connection terminal 11A to be inserted into the direct space 22Bs.

[0149] Next, an example of a procedure for assembling the connection terminal 21B and the combination connection terminal 11A will be described. As shown in Figure 9(a), the worker moves the connection terminal 21B straight toward the combined connection terminal 11A (see the thick arrow in Figure 9(a)), and inserts the connection portion 12A of the combined connection terminal 11A into the space directly below it through the insertion opening 27B in the assembly connection portion 22B of the connection terminal 21B.

[0150] In this case, in variant example 2, as shown in Figures 8(f) and (g), on both sides of the width of the insertion opening 27B, step portions 42d, 26Bd (stepped support portions 42e, 26Be) are provided on the second engagement claw 42 and the side surface 26B, respectively, so as to protrude toward the insertion opening 27B (upward) relative to the support portions 42c, 26Bc.

[0151] Therefore, the worker inserts the connection portion 12A of the combination connection terminal 11A into the directly below space 22Bs in a substantially horizontal position so as to climb over the stepped support portions 42e, 26Be from between the stepped support portions 42e, 26Be of the second locking claw 42 and the side surface 26B and the upper edge of the insertion opening 27B. This allows the connection portion 12A to be inserted into the directly below space 22Bs without interfering with the stepped portions 42d, 26Bd.

[0152] At this time, the second locking claw 42 and side surface 26B support the connection portion 12A with their respective stepped support portions 42e, 26Be, while the inner surfaces of the respective upright portions 42b, 26Bb lock onto the outer peripheral edge of the circular connection portion 12A, thereby guiding the assembly connection portion 22B to move straight toward the tip side in the longitudinal direction, i.e., to be inserted into the space directly below 22Bs.

[0153] As shown in Figure 9(b), the peripheral edge of connection portion 12A eventually abuts against the inner surface of the upright portion 41b of the first locking claw 41 of the assembly connection portion 22B, thereby restricting further straight movement of connection portion 12A toward the tip in the longitudinal direction.

[0154] At this time, the connection portion 12A and the assembly connection portion 22B are in an assembled state (a state in which they are disposed at the assembly position Pa) with the insertion holes 16, 24 communicating with each other.

[0155] When the connection portion 12A is inserted into the space directly below 22Bs, as described above, it is supported by the stepped support portions 42e, 26Be of the second locking claw 42 and the side surface 26B, respectively, but when it reaches the assembly position Pa, the support by these stepped support portions 42e, 26Be is released.

[0156] In the assembled state, the connecting portion 12A is supported from below by the first locking claw 41, the second locking claw 42, and the support portions 41c, 42c, and 26Bc of the side surface 26B.

[0157] Furthermore, in the assembled state, the peripheral edge of the connection portion 12A engages with the inner surface of the upright portion 41b of the first locking claw 41, the inner surface of the vertical wall portion 42f (step portion 42d) of the second locking claw 42, and the inner surfaces of the upright portion 26Bb and vertical wall portion 26Bf (step portion 26Bd) of the side surface 26B, and is fixed (positioned) by these.

[0158] As mentioned above, the present invention is not limited to the configurations of the above-mentioned examples, but can be formed in various embodiments. The assembled electric wire of the present invention is not limited to the above-described embodiment in which the connection portion 12 of one combined connection terminal 11 is inserted into the internal space 22s of the box-shaped assembled connection portion 22 (see Figure 3 (c)), but the connection portions 12 of multiple combined connection terminals 11 may be inserted into the internal space 22s.

[0159] In this case, the multiple combination connection terminals 11 can be combined so that the main surfaces 14 face in the same direction, as shown in FIG. 10(a), for example. According to the above configuration, the main surface 14 of any one of the multiple combination connection terminals 11 (in Figure 10(a) , the lowermost combination connection terminal 11) can be brought into surface contact with the opposing surface 25 (here, the lower opposing surface 25b) opposite the main surface 14. This ensures excellent electrical continuity between the main surface 14 and the opposing surface 25 when fastened with the fixing bolt 3 .

[0160] Alternatively, the multiple combination connection terminals 11 may be combined so that the main surfaces 14 face in opposite directions, as shown in FIG. 10(b).

[0161] According to the above-described configuration, the main surfaces 14 can be brought into surface contact with each other, so that excellent electrical conductivity between the main surfaces 14 can be ensured when fastened with the fixing bolt 3.

[0162] In addition, the number of connection portions 12 of the combination connection terminal 11 inserted into the internal space 22s of the box-shaped assembly connection portion 22 is not limited to one or two, but three or more may be inserted depending on the size of the internal space 22s.

[0163] Furthermore, for example, when the connection terminal of the present invention is described based on the structure of the connection terminal 21 of the above-mentioned embodiment, as shown in Figure 11 (a), a configuration may be adopted in which a bolt retaining member 40 is provided on the opposing surface 25 around the periphery of the insertion hole 24 as a bolt retaining means for retaining the inserted fixing bolt 3 while allowing it to rotate around its axis.

[0164] Specifically, a recess 24a is provided on the opposing surface 25 by expanding the diameter of the periphery of the insertion hole 24 and recessing it in a countersink shape. An annular bolt holding member 40 is fitted coaxially with the insertion hole 24 into this recess 24a.

[0165] The inner peripheral surface of the bolt holding member 40 has convex portions 46 protruding radially inward and concave portions 47 recessed radially outward, which are alternately arranged around the entire circumference. 11(a) is a plan view of the periphery of the insertion hole 24 in the upper opposing surface 25a, but the periphery of the insertion hole 24 in the lower opposing surface 25b is also omitted from the illustration because it has the same configuration as the periphery of the insertion hole 24 in the upper opposing surface 25a. Also, reference numeral 3a shown by a virtual line in FIG. 10(a) denotes the outer circumferential surface of the fixing bolt 3.

[0166] As shown in Figure 11(a), the radially inward tip of the convex portion 46 abuts against the outer peripheral surface 3a of the fixing bolt 3 inserted into the insertion hole 16, while the concave portion 47 is positioned radially outwardly of the outer peripheral surface 3a of the fixing bolt 3 inserted into the insertion hole 16.

[0167] Furthermore, when the fixing bolt 3 is inserted into the insertion hole 24, the multiple protrusions 46 of the bolt retaining member 40 abut against the outer surface 3a of the fixing bolt 3, thereby preventing the fixing bolt 3 from slipping out of the insertion hole 24 while allowing the fixing bolt 3 to rotate around its axis.

[0168] Therefore, once the fixing bolt 3 is inserted into the insertion hole 24, the connection terminal 21 and the combined connection terminal 11 are temporarily fixed together by the fixing bolt 3 held by the bolt holding member 40, and the connection terminal 21 can be easily carried to the installation location.

[0169] Furthermore, when fastening the connection terminal 21 and the combined connection terminal 11 to the mounting location using the fixing bolt 3, there is no need to insert the fixing bolt 3 into each of the insertion holes 16, 24 of the connection portion 12 and the assembly connection portion 22, and the fixing bolt 3 can be easily fastened to the mounting location.

[0170] In addition, since the connection terminal 21 and the combination connection terminal 11 can be temporarily fixed with the fixing bolt 3, for example, when three combination connection terminals 11 are stacked and stored as shown in Figure 10 (b), the connection portion 12 of the combination connection terminal 11 located in the middle in the vertical direction, which is not reached by the engagement of a pair of protruding pieces 28, will not come out of the internal space 22s, and can be maintained in a held state by the fixing bolt 3.

[0171] In addition, the bolt retaining means of the present invention is not limited to the above-mentioned bolt retaining member 40, so long as it is configured to be able to hold the inserted fixing bolt 3 on the opposing surface 25 around the periphery of the insertion hole 24 while allowing it to rotate about its axis, and may be formed, for example, in a shape in which the inner surface of the insertion hole 24 has convex portions 46 that protrude radially inward and concave portions 47 that recede radially outward, alternately arranged around the entire circumference.

[0172] Furthermore, the "other connection terminal" in the present invention is not limited to being formed as the combination connection terminal 11 as in the above-mentioned embodiment, and may be, for example, a terminal fitting formed from a single plate material such as an LA terminal. Specifically, the connection part may be formed, for example, in a round shape or a tuning fork shape when viewed from the front, as long as it has an insertion hole through which the fixing bolt 3 can be inserted and is configured to be bolted, and the electric wire connection part of the other connection terminal is not limited to a configuration in which a pair (two) are provided in one connection part, and may be a configuration in which one or three or more are provided.

[0173] Furthermore, the assembly wire of the present invention is not limited to the configuration in which it is fastened using a fixing bolt 3 or the like to a bolt insertion hole 101 provided in a ground circuit 100 serving as an attachment point on a vehicle body as in the embodiment described above, but may also be configured such that, although not shown, a stud bolt protruding from a ground point is inserted into each insertion hole of the assembly connection portion of the connection terminal and the connection portion of the combined connection terminal, and electrically connected to the ground point by tightening a nut.

[0174] Regarding the correspondence between this invention and the above-mentioned embodiment, the other connection terminals of this invention correspond to the combination connection terminals 11 and 11A, and so on. The slide guide portion corresponds to the pair of lateral sides 26a, 26b in this embodiment, corresponds to side 26A or first locking claw 31 in modified example 1, and corresponds to side 26B or second locking claw 42 in modified example 2.

[0175] In addition, in this embodiment, the fixing portion corresponds to a pair of protruding pieces 28 or both widthwise edge portions 29a of the extension portion insertion opening 29, in variant example 1, it corresponds to the first locking claw 31 or the second locking claw 32, and in variant example 2, it corresponds to the side surface 26B, the first locking claw 41 or the second locking claw 42.

[0176] Further, the opposing surface corresponds to the opposing surface 25, 25A or the upper opposing surface 25Ba, The bolt holding means corresponds to the bolt holding member 40 (bolt holding means), The connecting terminal piece corresponds to the first connecting terminal piece 110 or the second connecting terminal piece 111; The connection piece corresponds to the first connection piece 110a or the second connection piece 111a. [Explanation of symbols]

[0177] 1,1A,1B…Assembly wire 2...Electric wire 2a…Wires connected to combination connection terminals (wires connected to other connection terminals) 2b...Wire extending in the same direction as the wire 3…Fixing bolt 11, 11A…Combination connection terminal (other connection terminal) 12,12A…Connection 13... Wire connection part provided on combination connection terminal 14,14A…main surface 16...Through hole (through hole in connection part) 21, 21', 21A, 21B...Connection terminals 22, 22A, 22B... Assembly connection part 23... Wire connection part (auxiliary fixing part) provided on the connection terminal 24...Through hole on the opposing surface 25,25A…Opposite surface 25Ba…Upper facing surface (facing surface) 26a, 26b...Side surfaces (slide guide parts) 26A…Side (slide guide) 26B...Side (fixing part (regulating part), slide guide part) 27, 27A…Insertion opening 28...Pair of protruding pieces (fixed part) 29a: Both edges (fixed portions) in the width direction of the extension portion insertion opening 29 31...First locking claw (fixed portion (locking portion), slide guide portion) 32...Second locking claw (fixed part) 35…Deformation promotion section 40...Bolt holding member (bolt holding means) 41...First locking claw (fixed part) 42...Second locking claw (fixed portion, slide guide portion) 110...First connecting terminal piece (connecting terminal piece) 111...Second connecting terminal piece (connecting terminal piece) 110a...first connecting piece (connecting piece) 111a...Second connecting piece (connecting piece)

Claims

1. a wire connection portion for connecting the wires; The connecting terminal has an insertion hole for inserting a fixing bolt therethrough, and is provided with an assembly connecting portion for assembling with a connecting portion having an insertion hole in another connecting terminal, The assembly connection portion is a slide guide portion that guides the slide of the connection portion; a fixing portion that fixes the slid connection portion to the assembly connection portion at a position where the insertion holes communicate with each other, The assembly connection portion is the connecting portion has an opposing surface facing a main surface having the insertion hole, The opposing surface has the insertion hole, The assembly connection portion is A side surface is provided that stands upright from the side of the opposing surface, The opposing surfaces include a pair of opposing surfaces on both sides of the main surface in a thickness direction, The side surface connects the pair of opposing surfaces to each other laterally, the assembly connection portion is box-shaped and has an insertion opening between the pair of opposing surfaces into which the connection portion can be inserted, On the side, A deformation promoting portion is provided which promotes deformation of the side surfaces in a direction in which the pair of opposing surfaces approach each other and sandwich the connection portion by fastening the fixing bolt inserted into the insertion hole. Connection terminal.

2. The electric wire connection portion is In an assembled state, the electric wire is arranged to be connected to the other connection terminal, the electric wire extending in the same direction as the electric wire connected to the other connection terminal. The connection terminal according to claim 1 .

3. The slide guide portion is a locking portion that locks onto an outer circumferential edge of the connection portion so that the assembly connection portion can slide in a circumferential direction relative to the connection portion. The connection terminal according to claim 1 or 2.

4. A bolt holding means is provided on the opposing surface around the periphery of the insertion hole to hold the inserted fixing bolt while allowing it to rotate about its axis. The connection terminal according to any one of claims 1 to 3.

5. The fixing portion is a restricting portion that restricts movement of the connection portion inserted from the insertion opening in a direction of removal. The connection terminal according to any one of claims 1 to 4.

6. The electric wire connection portion is a connecting portion provided on one of the opposing surfaces and disposed at a position not overlapping the insertion opening when viewed from a direction in which the connecting portion is inserted into the insertion opening; The connection terminal according to any one of claims 1 to 5.

7. The electric wire connection portion is The connecting portion is provided on one of the side surfaces and is disposed at a position not overlapping the insertion opening when viewed from the insertion direction of the connecting portion into the insertion opening. The connection terminal according to any one of claims 1 to 5.

8. The electric wire connection portion is configured as an auxiliary fixing portion that assists the fixing portion in fixing the assembly connection portion. The connection terminal according to claim 7.

9. A connection terminal according to any one of claims 1 to 8; the other connection terminal having the electric wire connection portion; The wires are connected to both wire connectors. The connection portion and the assembly connection portion are assembled together so that the insertion holes are in communication with each other. Assembly wire.

10. The electric wire connected to the connection terminal; The electric wire connected to the other connection terminal is oriented in the same direction. The electric wire assembly according to claim 9.

11. The other connection terminal is A plurality of connection terminal pieces are provided, each having a connection piece forming a part of the connection portion and the electric wire connection portion, and the connection pieces are stacked together to form the connection portion, forming a combined connection terminal. The electric wire assembly according to claim 9 or 10.

12. The plurality of combination connection terminals are combined so that the main surfaces are in the same direction. The electric wire assembly according to claim 11.

13. The plurality of combination connection terminals are combined so that the main surfaces are in opposite directions. The electric wire assembly according to claim 11.

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