JP2020021679A - Terminal connection structure, electric connection box and wire harness - Google Patents

Abstract

To make a connection workability for a terminal fitting excellent and to also allow the use of an existing terminal fitting.SOLUTION: An electric connection box comprises: a conductive electric connection member 30 by which one terminal fitting 10 having a through-hole 11a formed in a flat electric connector 11 is electrically connected to the other terminal fitting 20; and a terminal connection structure 40 of the electric connection member 30. A terminal connection structure 40 comprises: a clipping structure 41 for clipping a flat plate part 11b of the electric connector 11; an insertion path 42 along which the electric connector 11 is inserted up to an inserting position in the clipping structure 41; and a locking part 43 that can lock an inner peripheral wall surface side of the through-hole 11a by entering the through-hole 11a of the electric connector 11 clipped by the clipping structure 41.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a terminal connection structure, an electric connection box, and a wire harness.

  2. Description of the Related Art Conventionally, a terminal connection structure for physically and electrically connecting a terminal fitting to a connection object of a partner has been known. As the terminal connection structure, for example, a structure in which a terminal fitting and an object to be connected are fixed together with a screw member is known. This type of terminal connection structure is disclosed in Patent Documents 1 and 2 below.

JP-A-2004-207077 JP 2014-135224 A

  By the way, the terminal connection structure using a screw member requires many working steps such as inserting a male screw member into a through hole of a terminal fitting or a connection object. For this reason, the above-mentioned Patent Documents 1 and 2 also disclose a terminal connection structure for the purpose of improving the workability of connecting terminal fittings. In the terminal connection structure of Patent Literature 1, a flexible piece is protruded from an electrical connection portion of a terminal fitting, and the flexible piece is inserted into a through-hole of an object to be connected. The connection object is sandwiched. Further, in the terminal connection structure of Patent Literature 2, the terminal fittings are provided on the curved electric connection portion, the first engagement portion protruding from one end of the electric connection portion, and the other end side of the electric connection portion. A second engagement portion (through hole). In the terminal connection structure of Patent Document 2, the first engagement portion is inserted into the first locking portion (through hole) of the connection target and hooked, and the connection target object is inserted into the second engagement portion (through hole). By inserting and hooking the second locking portion, the convex side of the electrical connection portion is pressed against the connection object. However, these conventional terminal connection structures require the preparation of dedicated terminal fittings.

  Therefore, an object of the present invention is to provide a terminal connection structure, an electric connection box, and a wire harness that are excellent in connection workability of terminal fittings and can be applied to existing terminal fittings.

  In order to achieve the above object, a terminal connection structure according to the present invention has a conductive electrical connection for electrically connecting one terminal fitting having a through hole formed in a flat electrical connection body to the other terminal fitting. A connection member, comprising a terminal connection structure of the electric connection member or a separate conductive terminal connection structure electrically connected to the electric connection member, wherein the terminal connection structure is A holding structure for holding the flat portion of the electrical connection body, an insertion path for inserting the electrical connection body to a holding position by the holding structure, and a penetration into the through hole of the electrical connection body held by the holding structure. And a locking portion capable of locking the inner peripheral wall surface side of the through hole.

  Here, the holding structure is configured to apply a pressing force to one plane in the flat plate portion of the electrical connection body and to cover the through hole with the first pressing portion, and to apply the pressing force to the other flat surface in the flat plate portion. And at least one second pressing portion for applying a pressing force, and it is preferable that the locking portion protrudes from the first pressing portion.

  The holding structure may include a first pressing portion that applies a pressing force to one plane of the flat plate portion of the electrical connection body and covers the through hole, and a pressing portion that presses the other flat surface of the flat plate portion. And two second pressing portions for applying pressure, wherein the second pressing portion has a fixed end provided on the first pressing portion, and has a free end opposed to the other flat surface of the flat plate portion, And, a cantilever piece that applies a pressing force to the other flat surface of the flat plate portion from a wall surface facing the other flat surface of the flat plate portion at the free end. It is preferable that each of the second pressing portions protrudes from the free end.

  Further, the sandwiching structure may be configured such that an opposing wall body is disposed opposite to one flat surface of the flat portion of the electric connection body, and a pressing force is applied to the inner wall surface side of the through hole so as to protrude from the opposing wall body. It is desirable to have the locking portion to be provided and at least one pressing portion for applying a pressing force to the other flat surface of the flat plate portion.

  Further, the electric connection member separate from the terminal connection structure is a flat plate-shaped electric connection member that overlaps one of the planes and is electrically connected to the flat plate portion of the electric connection body. A first pressing portion that applies a pressing force to the other flat surface of the flat plate portion of the electrical connection body and covers the through hole; and a second pressing portion that covers the through hole. A second pressing portion that applies a pressing force to the one flat surface of the flat plate portion through the electrical connection portion by applying a pressing force to the plane, and the terminal connection structure includes: A first locking portion as the locking portion protruding from the first pressing portion, and a penetrating hole of the electrical connection portion sandwiched by the clamping structure to enter the through hole of the electrical connection portion. A second locking portion that can lock the inner peripheral wall side of the hole; It is desirable to have.

  In the case where the other terminal fitting has a flat electrical connection body having a through hole formed therein, the terminal connection structure may be provided on both the one terminal fitting side and the other terminal fitting side. desirable.

  Further, in order to achieve the above object, an electric connection box according to the present invention has a conductive property for electrically connecting one terminal fitting having a through hole formed in a flat electrical connecting body to the other terminal fitting. An electric connection member, a terminal connection structure of the electric connection member or a separate conductive terminal connection structure electrically connected to the electric connection member, the one terminal fitting and the other. A housing for accommodating the terminal fitting, the electric connection member, and the terminal connection structure, wherein the terminal connection structure includes a holding structure for holding a flat plate portion of the electric connection body, and the electric connection body. Into the through-hole of the electrical connection body sandwiched by the holding structure and the inner peripheral wall surface side of the through-hole. And a locking portion. To have.

  Further, in order to achieve the above object, a wire harness according to the present invention includes one terminal fitting having a through hole formed in a flat electrical connection body, the other terminal fitting, and the one terminal fitting being connected to the other terminal fitting. A conductive electrical connection member electrically connected to the terminal fitting, and a separate conductive terminal electrically connected to the terminal connection structure of the electrical connection member or the electrical connection member. A connection structure, and a housing that houses the one terminal fitting, the other terminal fitting, the electric connection member, and the terminal connection structure, and draws an electric wire from inside to outside; The terminal connection structure includes a holding structure for holding the flat portion of the electric connection body, an insertion path for inserting the electric connection body to a holding position by the holding structure, and the electric connection body held by the holding structure. Into the through hole And it is characterized by having a locking portion capable of locking the inner peripheral wall surface of the through hole.

  In the terminal connection structure according to the present invention, the electric connection body can be held by the holding force on the flat plate portion by the holding structure. Further, in this terminal connection structure, the occurrence of relative displacement of the electric connection body can be suppressed by the pair of through holes and the locking portions. And in this terminal connection structure, since the insertion path of the electric connection body to the holding position by the holding structure is provided, the locking portion is inserted into the through hole by inserting the electric connection body to the holding position. You can enter. That is, the terminal connection structure according to the present invention can fix the electric connection body to the terminal connection structure simply by performing a simple connection operation of the electric connection body to the terminal connection structure. Excellent workability. In addition, since the terminal connection structure according to the present invention employs such a configuration, it is possible to apply an existing terminal fitting in which a through hole is formed in a flat electric connection body. Therefore, the terminal connection structure according to the present invention is excellent in connection workability of terminal fittings, and can also use existing terminal fittings. Furthermore, since the electric connection box and the wire harness according to the present invention are provided with the terminal connection structure, the effects of the terminal connection structure can be similarly obtained.

FIG. 1 is an exploded perspective view showing a terminal connection structure, an electric connection box, and a wire harness according to the embodiment. FIG. 2 is a perspective view showing a terminal connection structure, an electric connection box, and a wire harness according to the embodiment. FIG. 3 is a perspective view showing the terminal connection structure of the embodiment together with terminal fittings. FIG. 4 is a sectional view taken along line X1-X1 of FIG. FIG. 5 is a perspective view showing the terminal connection structure of the embodiment. FIG. 6 is an exploded perspective view showing a terminal connection structure, an electric connection box, and a wire harness according to the first modification. FIG. 7 is a perspective view illustrating a terminal connection structure, an electric connection box, and a wire harness according to a first modification. FIG. 8 is a perspective view showing the terminal connection structure of Modification 1 together with terminal fittings. FIG. 9 is a sectional view taken along line X2-X2 of FIG. FIG. 10 is a perspective view showing a terminal connection structure of the first modification. FIG. 11 is an exploded perspective view showing a terminal connection structure, an electric connection box, and a wire harness according to a second modification. FIG. 12 is a perspective view illustrating a terminal connection structure, an electric connection box, and a wire harness according to a second modification. FIG. 13 is a perspective view showing the terminal connection structure of Modification 2 together with terminal fittings. FIG. 14 is a sectional view taken along line X3-X3 in FIG. FIG. 15 is a perspective view illustrating a terminal connection structure according to a second modification. FIG. 16 is an exploded perspective view showing a terminal connection structure, an electric connection box, and a wire harness according to a third modification. FIG. 17 is a perspective view showing the terminal connection structure of Modification 3 together with terminal fittings. FIG. 18 is a sectional view taken along line X4-X4 of FIG. FIG. 19 is a perspective view illustrating a terminal connection structure according to a third modification. FIG. 20 is a perspective view of the terminal connection structure of Modification 3 as viewed from another angle.

  Hereinafter, embodiments of a terminal connection structure, an electric connection box, and a wire harness according to the present invention will be described in detail with reference to the drawings. Note that the present invention is not limited by the embodiment.

[Embodiment]
One embodiment of a terminal connection structure, an electric connection box, and a wire harness according to the present invention will be described with reference to FIGS.

  Reference numeral 1 in FIGS. 1 to 5 indicates a terminal connection structure of the present embodiment. Reference numerals JB1 and WH1 in FIGS. 1 and 2 respectively denote an electric connection box of the present embodiment provided with the terminal connection structure 1, and a wire harness of the present embodiment provided with the electric connection box JB1. Is shown.

  The terminal connection structure 1 is provided for electrically connecting one terminal fitting 10 and the other terminal fitting 20 (FIGS. 1 to 5).

  Each of the terminal fittings 10 and 20 is formed of a conductive material such as a metal. For example, each of the terminal fittings 10 and 20 is press-formed using a metal plate as a base material. In the terminal connection structure 1, each of the terminal fittings 10 and 20 may be physically and electrically connected to the electric wire We, or may be included in the electronic component EP. . Therefore, each of the terminal fittings 10 and 20 may be attached to a different electric wire We, or may be provided with a different electronic component EP. One of the terminal fittings 10 and 20 is attached to the electric wire We. The other may be provided in the electronic component EP. Here, one terminal fitting 10 attached to the electric wire We and another terminal fitting 20 included in the electronic component EP will be described as an example (FIG. 1).

  One terminal fitting 10 has a flat electrical connector 11 and an electrical connector 12 physically and electrically connected to the end of the electrical wire We (FIGS. 1 to 3). The electric connection body 11 may have any shape as long as it is formed in a flat plate shape. In this example, since an existing so-called round terminal is used for one terminal fitting 10, the electric connection body 11 is formed in a disk shape. A circular through-hole 11a is formed in the electric connection body 11 (FIG. 1). In the electric connector 11, the periphery of the through hole 11a is an annular flat plate portion 11b. The one terminal fitting 10 of this example is electrically connected to the core wire Wea of the wire We crimped by the wire connector 12 by crimping and fixing the wire connector 12 to the end of the wire We.

  The other terminal fitting 20 has a flat electrical connection 21 (FIGS. 1 to 4). The electrical connection body 21 may have any shape as long as it is formed in a flat plate shape. This exemplary electric connection body 21 is formed in a so-called male tab shape, and protrudes from the main body EP0 of the electronic component EP (FIG. 1). The electric connection body 21 is formed with a circular through-hole 21a. In the electric connection body 21, the periphery of the through hole 21a is a flat plate portion 21b having a male tab shape.

  Here, the electronic component EP indicates, for example, a circuit protection component such as a relay or a fuse, a connector, or the like. In the present embodiment, electronic devices such as a circuit board and an electronic control unit (so-called ECU) are also considered as one form of the electronic component EP. This exemplary electronic component EP is a circuit protection component, and is provided with a terminal fitting EP1 having the same shape as the other terminal fitting 20 (FIG. 1). The electric wire We0 (FIG. 2) is electrically connected to the terminal fitting EP1.

  The terminal connection structure 1 includes a conductive electric connection member 30 for electrically connecting one terminal fitting 10 to the other terminal fitting 20 (FIGS. 1 to 5). The electric connection member 30 is formed of a conductive material such as a metal. The illustrated electrical connection member 30 is a so-called bus bar formed by pressing a metal plate as a base material into a plate shape, and has a plate-shaped main body 31.

  The terminal connection structure 1 includes a terminal connection structure 40 of the electric connection member 30 or a separate conductive terminal connection structure 40 that is electrically connected to the electric connection member 30 (see FIG. 1 to FIG. 1). 5). That is, in the terminal connection structure 1, the terminal connection structure 40 may be provided as a part of the electric connection member 30, or the terminal connection structure 40 may be provided as a separate component from the electric connection member 30. In this example, the terminal connection structure 40 is provided as a part of the electric connection member 30. When the terminal connection structure 40 is provided as a separate component from the electric connection member 30, the electric connection member 30 and the terminal connection structure 40 may be directly connected to each other by welding or a connection mechanism. The connection may be made indirectly by interposing a conductive relay member between the member 30 and the terminal connection structure 40.

  In this example, as described above, the other terminal fitting 20 also has the flat electrical connection body 21 in which the through hole 21a is formed. Therefore, in this example, the terminal connection structure 40 is provided on both the one terminal fitting 10 side and the other terminal fitting 20 side (FIGS. 1 to 5). Therefore, this exemplary electric connection member 30 has two terminal connection structures 40 (the first terminal connection structure 40A and the second terminal connection structure 40B), and the first terminal connection structure 40A has one terminal connection structure 40A. Are physically and electrically connected to each other, and the other terminal fitting 20 is physically and electrically connected to the second terminal connection structure 40B.

  Here, the first terminal connection structure 40A and the second terminal connection structure 40B are formed to have the same shape. Therefore, in the following, the first terminal connection structure 40A will be described in detail as a representative thereof, and the second terminal connection structure 40B will be described only briefly.

  The first terminal connection structure 40 </ b> A includes a holding structure 41 for holding the flat plate portion 11 b of the electrical connection body 11, an insertion path 42 for inserting the electrical connection body 11 to a holding position by the holding structure 41, and holding by the holding structure 41. And a locking portion 43 that can enter the through hole 11a of the electrical connection body 11 and lock the inner peripheral wall surface side of the through hole 11a (FIGS. 1, 4, and 5). .

  The first terminal connection structure 40 </ b> A can hold the electric connection body 11 by the holding force of the holding structure 41 on the flat plate portion 11 b. Further, in the first terminal connection structure 40A, the occurrence of relative displacement of the electrical connection body 11 can be suppressed by the pair of through holes 11a and the locking portions 43. Therefore, the terminal connection structure 1 of the present embodiment is configured by the holding force of the holding structure 41 against the flat plate portion 11b and the mechanism for suppressing the displacement of the electrical connection body 11 by the pair of through holes 11a and the locking portions 43. The electric connection body 11 can be fixed by the one-terminal connection structure 40A.

  Further, in the first terminal connection structure 40A, since the insertion path 42 of the electric connection body 11 to the holding position by the holding structure 41 is provided, by inserting the electric connection body 11 to the holding position. The locking portion 43 can enter the through hole 11a. That is, in the terminal connection structure 1 of the present embodiment, the electric connection body 11 is fixed to the first terminal connection structure 40A only by performing a simple connection operation of the electric connection body 11 to the first terminal connection structure 40A. Therefore, the connection workability of the one terminal fitting 10 is excellent.

  Further, since the first terminal connection structure 40A adopts such a configuration, the first terminal connection structure 40A is a terminal fitting in which a through hole is formed in a flat electric connection body, and is inserted along the insertion path 42 to the holding position. If it is a terminal fitting that can be used, whether it is a dedicated terminal fitting or an existing terminal fitting (one terminal fitting 10), the terminal fitting can be used as a connection target. .

Specifically, the holding structure 41 of the present embodiment includes a first pressing portion 41a that applies a pressing force to _one flat surface 11b1 of the flat plate portion 11b of the electrical connection body 11 and covers the through hole 11a, and the flat plate 11b. comprising at least one second pressing portion 41b exerts a pressing force, the at section 11b with respect to other plane 11b ₂ (FIGS. 1, 3 and 4). The illustrated holding structure 41 includes one first pressing portion 41a and two second pressing portions 41b.

First pressing portion 41a of this exemplary is a rectangular piece body to the one of the plane 41a ₁ disposed opposite to the plane 11b ₁ of one of the flat plate portion 11b, one flat surface of the flat plate portion 11b from the plane 41a ₁ of the one exerting a pressing force against 11b ₁ (FIGS. 3 and 4). The first pressing portion 41a, to the main 31 of the electrical connection member 30, shifted in a direction perpendicular to the plane of the main 31 and the orthogonal direction is directed in the same direction with respect to a direction perpendicular thereto and one planar 41a ₁ So that The first pressing portion 41a is arranged such that the longitudinal direction is along the insertion path 42 of the electrical connection body 11. One side in the longitudinal direction of the first pressing portion 41a is connected to the end 31a of the main body 31 via a rectangular piece-shaped connecting portion 41c (FIGS. 3 to 5). The first pressing portion 41a has a cantilever shape in which a connecting portion between the connecting portion 41c and the end 31a of the main body 31 is a fixed end, and the other side in the longitudinal direction is a free end. The first pressing portion 41a has flexibility and can be bent with the connecting portion 41c side as a fulcrum.

The locking portion 43 projects from the first pressing portion 41a. In this example, the central portion of the first pressing portion 41a is bulged in a hemispherical shape from _one flat surface 41a1, and the bulged portion is used as the locking portion 43.

Further, the second pressing portion 41b of the exemplary is a rectangular piece body to the one of the plane 41b ₁ disposed opposite to the other plane 11b ₂ of the flat plate portion 11b, the other flat plate portion 11b from the plane 41b ₁ of the one exerting a pressing force to the plane 11b ₂ (Figure 3 and Figure 4). The second pressing portion 41b extends from the end 31a of the main body 31 on the same plane as the main body 31 of the electric connection member 30 (FIGS. 3 to 5). The second pressing portion 41b is formed such that its extending direction is the longitudinal direction, and the longitudinal direction is along the insertion path 42 of the electrical connection body 11. The second pressing portion 41b has a cantilever shape in which one side in the longitudinal direction connected to the end 31a of the main body 31 is a fixed end, and the other side in the longitudinal direction is a free end. The second pressing portion 41b has flexibility and can be bent with the fixed end side as a fulcrum. Each of the second pressing portion 41b are each is disposed to face the other plane 11b ₂ of the flat portion 11b in between the through hole 11a.

In the sandwiching structure 41, the free end sides of the first pressing portion 41a and the second pressing portion 41b serve as insertion ports for the electrical connection body 11. Further, in the sandwiching structure 41, the distance between the virtual plane including the _one plane 41a1 of the _first pressing section 41a and the virtual plane including the _one plane 41b1 of the second pressing section 41b is smaller. The first pressing portion 41a and the second pressing portion 41b are formed so as to be narrower than the plate thickness of the flat portion 11b within a range that does not hinder the insertion operation of the electrical connection body 11.

In the first terminal connection structure 40A, when the electric connecting member 11 from the insertion opening has been inserted, together with the deflecting plane 11b ₁ of one of the flat plate portion 11b is moved down the first pressing portion 41a, the flat plate other plane 11b ₂ parts 11b is flexed by moving down the second pressing portion 41b. In the first terminal connection structure 40A, when the electric connection body 11 is inserted to the holding position along the insertion path 42, the locking portion 43 enters the through hole 11a of the electric connection body 11, and The bending amount of each of the first pressing portion 41a and the second pressing portion 41b decreases. At this time, in the first terminal connection structure 40A, the flat portion 11b of the electrical connector 11 is sandwiched between the first pressing portion 41a and the second pressing portion 41b, and the pair of through holes 11a and the locking portions 43 are provided. Accordingly, it is possible to suppress the occurrence of the relative displacement of the electrical connector 11 with respect to the first pressing portion 41a and the second pressing portion 41b.

As described above, the second terminal connection structure 40B is formed in the same shape as the first terminal connection structure 40A. Accordingly, the second terminal connection structure 40B includes a holding structure 41 for holding the flat plate portion 21b of the electrical connection body 21, an insertion path 42 for inserting the electric connection body 21 to a holding position by the holding structure 41, and a holding structure 41 for the insertion. And a locking portion 43 which can enter the through hole 21a of the electric connector 21 sandwiched between the holes and lock the inner peripheral wall surface side of the through hole 21a (FIGS. 4 and 5). The holding structure 41 of the second terminal connection structure 40B applies a pressing force to _one flat surface 21b1 of the flat plate portion 21b of the electrical connection body 21 and includes a first pressing portion 41a that covers the through hole 21a. , and a two second pressing portions 41b that applies a pressing force to the other planes 21b ₂ at the flat plate portion 21b (FIGS. 1 and 4). The locking portion 43 of the second terminal connection structure 40B is protruded from the first pressing portion 41a as a bulging portion.

  However, in the second terminal connection structure 40B, the first pressing portion 41a and the second pressing portion 41b extend in the opposite direction to the first pressing portion 41a and the second pressing portion 41b of the first terminal connection structure 40A. To be located. The first pressing portion 41a of the second terminal connection structure 40B is connected to the end 31b of the main body 31 via a connecting portion 41c (FIGS. 4 and 5). The end portion 31b is disposed on the main body 31 on the opposite side to the end portion 31a. The second pressing portion 41b of the second terminal connection structure 40B extends from the end 31b.

In the second terminal connection structure 40B, when the electric connector 21 is inserted from the insertion port on the free end side of each of the first pressing portion 41a and the second pressing portion 41b, one flat surface of the flat plate portion 21b is formed. with 21b ₁ is flexed by moving down the first pressing portion 41a, to deflect other plane 21b ₂ of the flat plate portion 21b is moved down the second pressing portion 41b. In the second terminal connection structure 40B, when the electric connection body 21 is inserted to the holding position along the insertion path 42, the locking portion 43 enters the through hole 21a of the electric connection body 21, and The bending amount of each of the first pressing portion 41a and the second pressing portion 41b decreases. At this time, in the second terminal connection structure 40B, the first pressing portion 41a and the second pressing portion 41b sandwich the flat plate portion 21b of the electrical connection body 21, and the pair of through holes 21a and the locking portions 43. Accordingly, it is possible to suppress the occurrence of the relative displacement of the electrical connection body 21 with respect to the first pressing portion 41a and the second pressing portion 41b. Therefore, in the terminal connection structure 1 of the present embodiment, also in the second terminal connection structure 40B, the holding force of the holding structure 41 on the flat plate portion 21b and the electrical connection of the pair of through holes 21a and the locking portions 43 are provided. The electrical connection body 21 can be fixed by the displacement prevention mechanism 21.

  Further, in the terminal connection structure 1 of the present embodiment, since the insertion path 42 of the electric connection body 21 up to the holding position by the holding structure 41 is also provided in the second terminal connection structure 40B, the holding position By inserting the electric connector 21 up to this point, the locking portion 43 can be made to enter the through hole 21a. That is, in the terminal connection structure 1 of the present embodiment, the electric connection body 21 is fixed to the second terminal connection structure 40B only by performing a simple connection operation of the electric connection body 21 to the second terminal connection structure 40B. Therefore, the connection workability of the other terminal fitting 20 is excellent.

  As described above, the terminal connection structure 1 of the present embodiment is excellent in the connection workability of the respective terminal fittings 10 and 20, and the existing terminal fitting (one terminal fitting 10) can be applied. it can.

  Here, this terminal connection structure 1 becomes one of the components of the electric connection box JB1 by being accommodated in the housing JB1a (FIGS. 1 and 2). The electric connection box JB1 constitutes a wire harness WH1 together with the electric wires We and We0 drawn from the inside to the outside of the housing JB1a as described below. Therefore, the terminal connection structure 1 becomes one of the components of the wire harness WH1 by being housed in the housing JB1a of the electric connection box JB1.

  The housing JB1a is formed of an insulating material such as a synthetic resin so as to house the one terminal fitting 10, the other terminal fitting 20, the electric connection member 30, and the terminal connection structure 40. For example, in the housing JB1a, the electric connection member 30 having the terminal connection structure 40 is housed and fixed inside. The electronic component EP is housed in the illustrated case JB1a together with the other terminal fitting 20 and the terminal fitting EP1.

  In the housing JB1a, the electric connection body 11 of one terminal fitting 10 attached to the terminal of the electric wire We is inserted into and fixed to the inner first terminal connection structure 40A. As a result, in the case JB1a, the electric wire We is drawn out from the inside to the outside. Further, in the case JB1a, when the electronic component EP is accommodated, the electric connection body 21 of the other terminal fitting 20 is inserted into and fixed to the inner second terminal connection structure 40B. In the case JB1a, the wire We0 having the terminal fitting EP1 attached to the terminal is drawn out from the inside to the outside.

  As described above, the terminal connection structure 1 of the present embodiment is one of the components of the electric connection box JB1 and the wire harness WH1. Therefore, the electrical connection box JB1 and the wire harness WH1 of the present embodiment can similarly obtain the effects of the terminal connection structure 1.

[Modification 1]
Reference numeral 101 in FIGS. 6 to 10 indicates a terminal connection structure of the present modification. Reference numerals JB2 and WH2 in FIGS. 6 and 7 respectively denote an electric connection box of the present modification having the terminal connection structure 101 and a wire harness of the present modification having the electric connection box JB2. Is shown. The same reference numerals as those in the above-described embodiment denote the same parts, parts, and the like in the description of the present modified example as in the embodiment. However, in the description of this modified example, for convenience, the position indicating the respective flat surfaces 11b ₁ and 11b ₂ of the flat plate portion 11b and the position indicating the respective flat surfaces 21b ₁ and 21b ₂ of the flat plate portion 21b are different from the embodiments. It is upside down.

  The terminal connection structure 101 of the present modified example is prepared for electrically connecting one terminal fitting 10 and the other terminal fitting 20 similarly to the terminal connection structure 1 of the above-described embodiment. (FIGS. 6, 8 and 9).

  The terminal connection structure 101 includes a conductive electric connection member 130 for electrically connecting one terminal fitting 10 to the other terminal fitting 20 (FIGS. 6 to 10). The electric connection member 130 is formed of a conductive material such as a metal. The illustrated electrical connection member 130 is a so-called bus bar that is press-formed into a plate shape using a metal plate as a base material, and has a plate-shaped main body 131.

  The terminal connection structure 101 includes a terminal connection structure 140 included in the electric connection member 130, as in the specific example of the terminal connection structure 1 of the embodiment (FIGS. 6 to 10). And also in this modification, the other terminal fitting 20 has the flat-plate-shaped electric connection body 21 in which the through-hole 21a was formed. Therefore, the electric connection member 130 of the present modified example has the terminal connection structures 140 (the first terminal connection structure 140A and the second terminal connection structure 140B) on both the one terminal fitting 10 side and the other terminal fitting 20 side. Is provided. The electrical connection member 130 physically and electrically connects one terminal fitting 10 with the first terminal connection structure 140A, and physically and electrically connects the other terminal fitting 20 with the second terminal connection structure 140B. Connect.

  Here, the first terminal connection structure 140A and the second terminal connection structure 140B are formed to have the same shape. Therefore, hereinafter, the first terminal connection structure 140A will be described in detail as a representative thereof, and the second terminal connection structure 140B will be described only briefly.

  The first terminal connection structure 140A is, like the first terminal connection structure 40A of the embodiment, a holding structure 141 for holding the flat plate portion 11b of the electrical connection body 11, and a holding structure for holding the electrical connection body 11 by the holding structure 141. An insertion path 142 to be inserted to the position, and a locking portion that can enter the through hole 11a of the electric connector 11 held by the holding structure 141 and lock the inner wall surface side of the through hole 11a. 143 (FIGS. 6, 9 and 10).

  The first terminal connection structure 140A can hold the electrical connection body 11 by the holding force of the holding structure 141 on the flat plate portion 11b, similarly to the first terminal connection structure 40A of the embodiment. Further, like the first terminal connection structure 40A of the embodiment, the first terminal connection structure 140A is provided with a pair of through-holes 11a and the locking portions 143, so that the relative displacement of the electric connection body 11 can be reduced. Occurrence can be suppressed. Therefore, similarly to the terminal connection structure 1 of the embodiment, the terminal connection structure 101 of the present modified example has a clamping force on the flat plate portion 11b by the clamping structure 141 and an electric connection by the pair of through holes 11a and the locking portions 143. The electrical connection body 11 can be fixed by the first terminal connection structure 140A by the displacement prevention mechanism of the body 11.

  Further, in the first terminal connection structure 140A, as in the first terminal connection structure 40A of the embodiment, since the insertion path 142 of the electric connection body 11 to the holding position by the holding structure 141 is provided. By inserting the electric connection body 11 to the holding position, the locking portion 143 can enter the through hole 11a. That is, the terminal connection structure 101 of the present modified example is similar to the terminal connection structure 1 of the embodiment, in that the simple connection work of the electrical connection body 11 to the first terminal connection structure 140A is performed, and the first terminal Since the electrical connection body 11 can be fixed to the connection structure 140A, the connection workability of the one terminal fitting 10 is excellent.

  Further, since the first terminal connection structure 140A has such a configuration, the first terminal connection structure 140A is a terminal fitting in which a through hole is formed in a flat electric connection body, and is inserted along the insertion path 142 to the clamping position. If it is a terminal fitting that can be used, whether it is a dedicated terminal fitting or an existing terminal fitting (one terminal fitting 10), the terminal fitting can be used as a connection target. .

Specifically, the sandwiching structure 141 of the present modification includes a first pressing portion 141a that applies a pressing force to _one flat surface 11b1 of the flat plate portion 11b of the electrical connection body 11 and covers the through hole 11a, and the flat plate portion thereof. and a two second pressing portions 141b for applying a pressing force to the other planes 11b ₂ in section 11b (FIGS. 6 to 10).

First pressing portion 141a of this exemplary is a rectangular piece body to the one plane 141a ₁ disposed opposite to the plane 11b ₁ of one of the flat plate portion 11b, one flat surface of the flat plate portion 11b from the plane 141a ₁ of the one exerting a pressing force against 11b ₁ (FIGS. 8 and 9). The first pressing portion 141a extends from the end 131a of the main body 131 on the same plane as the main body 131 of the electric connection member 130 (FIGS. 8 to 10). In the first pressing portion 141a, the extending direction is set along the insertion path 42 of the electrical connection body 11.

The second pressing portion 141b of this example is provided with a fixed end to the first pressing part 141a, is disposed opposite the free end to the other of the planes 11b ₂ of the flat plate portion 11b, and the flat plate portion 11b at its free end which is a piece portion with respect to other plane 11b ₂ cantilevered exert a pressing force of the other flat plate portion 11b from the opposite wall surface with respect to the plane 11b ₂ (FIGS. 8 and 9). The second pressing portion 141b causes disposed opposite to the free end and the other planes 11b ₂ of the flat plate portion 11b and the through hole 11a. The second pressing portion 141b has flexibility. Here, one end in the direction orthogonal to the extending direction of the first pressing portion 141a is bent in an arc shape and turned back, whereby a half-cylindrical body formed of an arc-shaped piece disposed to face the first pressing portion 141a is turned into one side. Used as the second pressing portion 141b. Further, here, the other end in the direction orthogonal to the extending direction of the first pressing portion 141a is bent in an arc shape and turned back, thereby forming a half-cylindrical body composed of an arc-shaped piece disposed opposite to the first pressing portion 141a. Is used as the other second pressing portion 141b. The illustrated second pressing portion 141b is formed such that the cylinder axis direction of such a semi-cylindrical body extends along the extending direction of the first pressing portion 141a.

The locking portions 143 are made to protrude from the free ends of the respective second pressing portions 141b (FIGS. 6 to 10). Here, a one-piece locking portion 143 is projected from a portion of the free end facing the through hole 11a. The locking portion 143 protrudes toward the _one flat surface 141a1 of the first pressing portion 141a, while protruding so as not to contact the _one flat surface 141a1. The illustrated locking portion 143 is formed in a trapezoidal shape with the tip end on the protruding direction side as the upper bottom and the free end side of the second pressing portion 141b as the lower bottom. Therefore, both ends of the locking portion 143 along the cylinder axis direction of the second pressing portion 141b are inclined surfaces.

In the sandwiching structure 141, an end of the first pressing portion 141a in the extending direction and an end of the second pressing portion 141b in the extending direction serve as an insertion port of the electrical connector 11. In the holding structure 141, the distance between _one flat surface 141a1 of the first pressing portion 141a and the opposing wall surface at the free end of each second pressing portion 141b is smaller than the thickness of the flat plate portion 11b. Thus, the first pressing portion 141a and the second pressing portion 141b are formed.

In the first terminal connection structure 140A, the electric connection body 11 is inserted through the insertion opening, and the electric connection body 11 is locked to the _one flat surface 141a1 of the first pressing portion 141a while the locking portion 143 By applying a force to the inclined surface, the second pressing portion 141b is expanded while being bent, and the free end of the second pressing portion 141b moves away from the _one flat surface 141a1 of the first pressing portion 141a. In the first terminal connection structure 140A, when the electric connection body 11 is inserted to the clamping position along the insertion path 142, the locking portion 143 enters the through hole 11a of the electric connection body 11, and amount of deflection of the second pressing portion 141b is reduced, the opposite wall surface at the free end of the second pressing portion 141b exerts a pressing force on the other plane 11b ₂ abuts the flat plate portion 11b. At this time, in the first terminal connection structure 140A, the first pressing portion 141a and the second pressing portion 141b sandwich the flat plate portion 11b of the electrical connection body 11, and the pair of through holes 11a and the locking portions 143. Accordingly, it is possible to suppress the occurrence of the relative displacement of the electrical connector 11 with respect to the first pressing portion 141a and the second pressing portion 141b.

As described above, the second terminal connection structure 140B is formed in the same shape as the first terminal connection structure 140A. Accordingly, the second terminal connection structure 140B includes a holding structure 141 for holding the flat plate portion 21b of the electrical connection body 21, an insertion path 142 for inserting the electric connection body 21 to a holding position by the holding structure 141, and the holding structure 141. And a locking portion 143 that can enter the through-hole 21a of the electric connection body 21 and lock the inner peripheral wall side of the through-hole 21a (FIGS. 9 and 10). The holding structure 141 of the second terminal connection structure 140B applies a pressing force to _one flat surface 21b1 of the flat plate portion 21b of the electric connection body 21 and the first pressing portion 141a that covers the through hole 11a. , and a two second pressing portions 141b for applying a pressing force to the other planes 21b ₂ at the flat plate portion 21b.

  However, in the second terminal connection structure 140B, the first pressing portion 141a and the second pressing portion 141b extend in a direction opposite to the first pressing portion 141a and the second pressing portion 141b of the first terminal connection structure 140A. To be located. The first pressing portion 141a of the second terminal connection structure 140B extends from the end 131b of the main body 131 (FIGS. 8 to 10). The end 131b is disposed on the main body 131 on the opposite side to the end 131a.

In the second terminal connection structure 140B, the electric connector 21 is inserted from the insertion opening (the end side of the first pressing portion 141a in the extending direction and the end side of the second pressing portion 141b in the extending direction). Then, by applying a force to the inclined surface of the locking portion 143 while the electric connection body 21 is locked to the _one flat surface 141a1 of the first pressing portion 141a, the second pressing portion 141b is expanded while being bent, The free end of the second pressing portion 141b moves away from the _one flat surface 141a1 of the first pressing portion 141a. In the second terminal connection structure 140B, when the electric connection body 21 is inserted to the holding position along the insertion path 142, the locking portion 143 enters the through hole 21a of the electric connection body 21 and 2 the amount of deflection of the pressing portion 141b is reduced, the action of the other plane 21b ₂ abuts the pressing force of the opposing wall surfaces flat plate portion 21b at the free end of the second pressing portion 141b. At this time, in the second terminal connection structure 140B, the first pressing portion 141a and the second pressing portion 141b sandwich the flat plate portion 21b of the electrical connection body 21, and the pair of through holes 21a and the locking portions 143. Accordingly, it is possible to suppress the occurrence of the relative displacement of the electrical connector 21 with respect to the first pressing portion 141a and the second pressing portion 141b. Therefore, in the terminal connection structure 101 of the present modification, also in the second terminal connection structure 140B, the holding force of the holding structure 141 against the flat plate portion 21b and the electric connection of the pair of through holes 21a and the locking portions 143 are provided. The electrical connection body 21 can be fixed by the displacement prevention mechanism 21.

  Further, in the terminal connection structure 101 of the present modification, the insertion path 142 of the electric connection body 21 to the holding position by the holding structure 141 is provided also in the second terminal connection structure 140B. By inserting the electric connector 21 up to this point, the locking portion 143 can enter the through hole 21a. That is, in the terminal connection structure 101 of the present modified example, the electric connection body 21 is fixed to the second terminal connection structure 140B simply by performing a simple connection work of the electric connection body 21 to the second terminal connection structure 140B. Therefore, the connection workability of the other terminal fitting 20 is excellent.

  As described above, the terminal connection structure 101 of the present modified example is excellent in the connection workability of the respective terminal fittings 10 and 20, and the existing terminal fitting (one terminal fitting 10) can be applied. it can.

  Here, this terminal connection structure 101 becomes one of the components of the electric connection box JB2 by being housed in the housing JB2a (FIGS. 6 and 7). The electric connection box JB2 constitutes a wire harness WH2 together with the electric wires We and We0 drawn from the inside to the outside of the housing JB2a as described below. Therefore, the terminal connection structure 101 becomes one of the components of the wire harness WH2 by being housed in the housing JB2a of the electric connection box JB2.

  Although the case JB2a of this example is formed to have basically the same shape as the case JB1a of the above-described embodiment, the housing structure and the holding structure of the electric connection member 130 are changed to the electric connection member. It is changed according to the shape of 130.

  In the housing JB2a, the electric connection body 11 of one terminal fitting 10 attached to the terminal of the electric wire We is inserted into and fixed to the inner first terminal connection structure 140A. As a result, in the housing JB2a, the electric wire We is drawn out from the inside to the outside. Further, in the case JB2a, when the electronic component EP is accommodated, the electric connection body 21 of the other terminal fitting 20 is inserted into and fixed to the inner second terminal connection structure 140B. In the housing JB2a, the electric wire We0 having the terminal fitting EP1 attached to the terminal is drawn out from the inside to the outside.

  As described above, the terminal connection structure 101 of the present modified example is one of the components of the electric connection box JB2 and the wire harness WH2. Therefore, the electric connection box JB2 and the wire harness WH2 of the present modification can similarly obtain the effect of the terminal connection structure 101.

[Modification 2]
Reference numeral 201 in FIGS. 11 to 15 indicates a terminal connection structure of the present modification. Reference symbols JB3 and WH3 in FIGS. 11 and 12 respectively denote an electric connection box of the present modification having the terminal connection structure 201 and a wire harness of the present modification having the electric connection box JB3. Is shown. The same reference numerals as those in the above-described embodiment denote the same parts, parts, and the like in the description of the present modified example as in the embodiment. However, in the description of this modified example, for convenience, the position indicating the respective flat surfaces 11b ₁ and 11b ₂ of the flat plate portion 11b and the position indicating the respective flat surfaces 21b ₁ and 21b ₂ of the flat plate portion 21b are different from the embodiments. It is upside down.

  The terminal connection structure 201 of the present modified example is prepared for electrically connecting one terminal fitting 10 and the other terminal fitting 20 similarly to the terminal connection structure 1 of the above-described embodiment. (FIGS. 11 to 15).

  The terminal connection structure 201 includes a conductive electric connection member 230 for electrically connecting one terminal fitting 10 to the other terminal fitting 20 (FIGS. 11 to 15). The electric connection member 230 is formed of a conductive material such as a metal. The illustrated electric connection member 230 is a so-called bus bar that is press-formed into a plate shape using a metal plate as a base material, and has a plate-shaped main body 231.

  The terminal connection structure 201 includes a terminal connection structure 240 included in the electric connection member 230, as in the specific example of the terminal connection structure 1 of the embodiment (FIGS. 11 to 15). And also in this modification, the other terminal fitting 20 has the flat-plate-shaped electric connection body 21 in which the through-hole 21a was formed. Therefore, the electric connection member 230 of the present modified example has the terminal connection structures 240 (the first terminal connection structure 240A and the second terminal connection structure 240B) on both the one terminal fitting 10 side and the other terminal fitting 20 side. Is provided. The electrical connection member 230 physically and electrically connects one terminal fitting 10 with the first terminal connection structure 240A, and physically and electrically connects the other terminal fitting 20 with the second terminal connection structure 240B. Connect.

  The first terminal connection structure 240A is, similarly to the first terminal connection structure 40A of the embodiment, a holding structure 241 for holding the flat plate portion 11b of the electrical connection body 11, and a holding structure for holding the electrical connection body 11 by the holding structure 241. An insertion path 242 to be inserted to the position, and a locking portion that can enter the through hole 11a of the electric connector 11 held by the holding structure 241 and lock the inner peripheral wall surface side of the through hole 11a. 243 (FIGS. 14 and 15).

  The first terminal connection structure 240A can hold the electric connection body 11 by the clamping force on the flat plate portion 11b by the clamping structure 241 similarly to the first terminal connection structure 40A of the embodiment. Further, the first terminal connection structure 240A is provided with a pair of through-holes 11a and a locking portion 243, as in the first terminal connection structure 40A of the embodiment, so that the relative displacement of the electric connection body 11 can be reduced. Occurrence can be suppressed. Therefore, similarly to the terminal connection structure 1 of the embodiment, the terminal connection structure 201 of the present modification has a clamping force on the flat plate portion 11b by the clamping structure 241 and an electric connection by the pair of through holes 11a and the locking portions 243. The electrical connection body 11 can be fixed by the first terminal connection structure 240A by the displacement prevention mechanism of the body 11.

  Further, in the first terminal connection structure 240A, as in the first terminal connection structure 40A of the embodiment, the insertion path 242 of the electric connection body 11 to the holding position by the holding structure 241 is provided. By inserting the electrical connection body 11 to the holding position, the locking portion 243 can enter the through hole 11a. In other words, the terminal connection structure 201 of the present modification is similar to the terminal connection structure 1 of the embodiment, in that a simple connection operation of the electrical connection body 11 to the first terminal connection structure 240A is performed, and the first terminal Since the electrical connection body 11 can be fixed to the connection structure 240A, the connection workability of the one terminal fitting 10 is excellent.

  Further, since the first terminal connection structure 240A has such a configuration, the first terminal connection structure 240A is a terminal fitting in which a through-hole is formed in a flat electrical connection body, and is inserted along the insertion path 242 to the clamping position. If it is a terminal fitting that can be used, whether it is a dedicated terminal fitting or an existing terminal fitting (one terminal fitting 10), the terminal fitting can be used as a connection target. .

Specifically, the sandwiching structure 241 of the present modification includes an opposing wall 241a that is disposed to oppose the _one flat surface 11b1 of the flat plate portion 11b of the electric connection body 11 (FIGS. 11 to 15). The opposing walls 241a, the one of the planes 241a ₁ is a rectangular piece portion to be opposed to the flat 11b ₁ of one of the flat plate portion 11b, the same on plane entity 231 of the electric connection member 230, that principal 231 (See FIGS. 13 and 14). The extending direction of the opposing wall 241 a is set along the insertion path 242 of the electrical connector 11.

The locking portion 243 projects from the opposing wall 241a. In this example, two long holes 241c are formed in the center portion of the opposing wall 241a, and a rectangular, double-sided piece between the long holes 241c is used as the locking portion 243 (FIG. 15). . The long holes 241c are formed so that the longitudinal direction thereof is along the extending direction of the opposing wall body 241a, and are spaced apart from each other in the short direction. The locking portion 243 is a rectangular arc-shaped body along the longitudinal direction of the long hole 241c, and protrudes from _one flat surface 241a1. The locking portion 243 has flexibility.

The holding structure 241 of the present modification uses this locking portion 243 to apply a pressing force to _one flat surface 11b1 of the flat plate portion 11b. The illustrated locking portion 243 is formed so that the linear distance between the fixed ends is longer than the diameter of the through hole 11a. Thereby, the locking portion 243 at the sandwiching position can enter the through hole 11a and push each fixed end side against the inner peripheral wall surface side of the through hole 11a on the _one flat surface 11b1 side. Pressure can be applied.

Furthermore, clamping structure 241 of the present modification is provided with at least one pressing unit 241b exerts a pressing force against the other plane 11b ₂ at the flat plate portion 11b (Figures 11-15). The pressing portion 241b is one of the plane 241b ₁ is a rectangular piece portion to be opposed to the other plane 11b ₂ of the flat portion 11b, with respect to other plane 11b ₂ of the flat portion 11b of the plane 241b ₁ of the one A pressing force is applied (FIG. 14). In this example, two pressing portions 241b are provided. For example, the pressing portion 241b extends along the direction in which the facing wall 241a extends. Then, each of the pressing portion 241b are each to be opposed to the other plane 11b ₂ of the flat portion 11b in between the through hole 11a. Here, one end in the direction orthogonal to the extending direction of the opposing wall 241a is bent and turned back, so that a rectangular piece opposed to the opposing wall 241a is used as one pressing portion 241b. Further, here, the other end in the direction perpendicular to the extending direction of the opposing wall 241a is bent and turned back, so that a rectangular piece opposed to the opposing wall 241a is used as the other pressing portion 241b. .

In the sandwiching structure 241, the ends of the opposing wall 241a and the pressing portion 241b in the extending direction serve as insertion openings for the electrical connection body 11. Also, as in the sandwich structure 241, the distance between the plane 241b ₁ of one of the one flat surface 241a ₁ and the pressing portion 241b of the opposing walls 241a becomes wider than the thickness of the flat plate portion 11b, opposite The wall 241a and the pressing portion 241b are formed. On the other hand, in the holding structure 241, the distance between the apex of the locking portion 243 and the virtual plane including the _one flat surface 241 b ₁ of each pressing portion 241 b does not hinder the operation of inserting the electrical connection body 11. The locking portion 243 and the pressing portion 241b are formed so as to be smaller than the thickness of the flat portion 11b within the range.

In the first terminal connection structure 240A, electric connecting member 11 is inserted from the insertion opening, when the electric connecting member 11 reaches the engagement portion 243, other plane 11b ₂ the pressing portion of the flat plate portion 11b with locked in one of the plane 241b ₁ of 241b, deflecting plane 11b ₁ of one of the flat plate portion 11b is moved down the engaging portion 243. In the first terminal connection structure 240A, when the electrical connector 11 is inserted to the clamping position along the insertion path 242, the amount of bending of the locking portion 243 decreases, and the locking portion 243 is electrically connected. while entering into the through hole 11a of the connecting member 11, each of the fixed end of the locking portion 243 exerts the contact with the pressing force to the inner peripheral wall surface of the through hole 11a at the one plane 11b ₁ side. At this time, in the first terminal connection structure 240A, the locking portion 243 and the pressing portion 241b sandwich the flat plate portion 11b of the electric connection body 11, and the pair of through holes 11a and the locking portion 243 form the opposing wall. It is possible to suppress the occurrence of the relative displacement of the electrical connector 11 with respect to the body 241a and the pressing portion 241b.

  Here, the first terminal connection structure 240A has a positioning locking portion 244 for locking the electric connection body 11 inserted to the holding position (FIGS. 12 and 15). One positioning locking portion 244 is provided for each pressing portion 241b.

Similarly to the first terminal connection structure 240A, the second terminal connection structure 240B is inserted into the holding structure 241 for holding the flat plate portion 21b of the electric connection body 21 and the holding position of the electric connection body 21 by the holding structure 241. An insertion path 242 to be inserted, and a locking portion 243 that can enter the through hole 21a of the electric connector 21 held by the holding structure 241 and lock the inner peripheral wall surface side of the through hole 21a. (FIGS. 14 and 15). The sandwich structure 241 of the second terminal connection structure 240B, like sandwich structure 241 of the first terminal connection structure 240A, is disposed opposite to one plane 21b ₁ in the flat plate portion 21b of the electric connecting member 21 that the opposite walls 241a, an engaging portion 243 that applies a pressing force to the inner peripheral wall surface of and through hole 21a to protrude from the opposing walls 241a, the pressing force against the other plane 21b ₂ at the flat plate portion 21b And two pressing portions 241b that act on.

However, in the pressing portion 241b of the second terminal connection structure 240B is provided with a fixed end on the opposite wall 241a, is disposed opposite the free end to the other of the planes 21b ₂ of the flat plate portion 21b, and its free end is a piece portion cantilevered exerting a pressing force against the other plane 21b ₂ of opposing wall surfaces (end surface 241b ₂₎ from the flat plate portion 21b for the other planes 21b ₂ of the flat plate portion 21b (FIG. 15). The pressing portion 241b extends along the extending direction of the opposing wall body 241a. Then, each of the pressing portion 241b are each to be opposed to the other plane 21b ₂ of the flat portion 21b in between the through hole 21a. Here, one end in the direction orthogonal to the extending direction of the opposing wall 241a is bent and turned back, so that the half-cylinder disposed opposite to the opposing wall 241a is used as one pressing portion 241b. Further, here, the other end in the direction perpendicular to the extending direction of the opposing wall 241a is bent and turned back, so that the half-cylindrical body arranged opposite to the opposing wall 241a is used as the other pressing portion 241b. The pressing portion 241b of the second terminal connection structure 240B is formed so that the cylinder axis direction of such a half-cylinder extends along the extending direction of the opposing wall 241a.

  In the second terminal connection structure 240B, the opposing wall 241a and the pressing portion 241b extend in the opposite direction to the opposing wall 241a and the pressing portion 241b of the first terminal connection structure 240A. The opposing wall 241a of the second terminal connection structure 240B extends from the end 231b of the main body 231 (FIGS. 14 and 15). The end 231b is disposed opposite to the end 231a in the main body 231.

In the holding structure 241 of the second terminal connection structure 240 </ b> B, ends of the opposing wall 241 a and the pressing portion 241 b in the extending direction serve as insertion openings for the electric connection 21. Also, as in the sandwich structure 241, the distance between the end face 241b ₂ of the one flat surface 241a ₁ and the pressing portion 241b of the opposing walls 241a becomes wider than the thickness of the flat plate portion 21b, opposite wall 241a and a pressing portion 241b are formed. On the other hand, in the holding structure 241, the distance between the vertex of the locking portion 243 and the virtual plane including the end surface 241 _{b 2} of each pressing portion 241 _b is within a range that does not hinder the insertion work of the electrical connection body 21. The locking portion 243 and the pressing portion 241b are formed so as to be smaller than the thickness of the flat portion 21b.

In the second terminal connection structure 240B, an electrical connection member 21 is inserted from the insertion opening, when the electric connecting member 21 reaches the engagement portion 243, other plane 21b ₂ the pressing portion of the flat plate portion 21b 241b at the end face 241b ₂ with locked in, deflecting plane 21b ₁ of one of the flat plate portion 21b is moved down the engaging portion 243. In the second terminal connection structure 240B, when the electric connector 21 is inserted to the clamping position along the insertion path 242, the amount of bending of the locking portion 243 decreases, and the locking portion 243 is electrically connected. while entering into the through hole 21a of the connecting member 21, each of the fixed end of the locking portion 243 exerts the contact with the pressing force to the inner peripheral wall surface of the through hole 21a at the one plane 21b ₁ side. At this time, in the second terminal connection structure 240B, the locking portion 243 and the pressing portion 241b sandwich the flat plate portion 21b of the electrical connection body 21, and the pair of through-holes 21a and the locking portion 243 form the opposing wall. It is possible to suppress the occurrence of the relative displacement of the electrical connector 21 with respect to the body 241a and the pressing portion 241b. Therefore, in the terminal connection structure 201 of the present modification, also in the second terminal connection structure 240B, the holding force of the holding structure 241 against the flat plate portion 21b and the electric connection structure of the pair of through holes 21a and the locking portions 243 are provided. The electrical connection body 21 can be fixed by the displacement prevention mechanism 21.

  Furthermore, in the terminal connection structure 201 of the present modification, since the insertion path 242 of the electric connector 21 to the holding position by the holding structure 241 is provided also in the second terminal connection structure 240B, the holding position By inserting the electrical connector 21 up to this point, the locking portion 243 can enter the through hole 21a. That is, in the terminal connection structure 201 of the present modification, the electric connection body 21 is fixed to the second terminal connection structure 240B only by performing a simple connection operation of the electric connection body 21 to the second terminal connection structure 240B. Therefore, the connection workability of the other terminal fitting 20 is excellent.

  As described above, the terminal connection structure 201 of the present modified example is excellent in the connection workability of the respective terminal fittings 10 and 20, and the existing terminal fitting (one terminal fitting 10) can be applied. it can.

  Here, this terminal connection structure 201 becomes one of the components of the electric connection box JB3 by being accommodated in the housing JB3a (FIGS. 11 and 12). The electric connection box JB3 constitutes a wire harness WH3 together with the electric wires We and We0 drawn from the inside to the outside of the housing JB3a as described below. Therefore, the terminal connection structure 201 becomes one of the components of the wire harness WH3 by being housed in the housing JB3a of the electric connection box JB3.

  Although the casing JB3a of this example is formed to have basically the same shape as the casing JB1a of the above-described embodiment, the housing structure and the holding structure of the electric connection member 230 are changed to the electric connection member. It is changed according to the shape of 230.

  In the housing JB3a, the electric connection body 11 of one terminal fitting 10 attached to the end of the electric wire We is inserted into and fixed to the inner first terminal connection structure 240A. Thus, in the case JB3a, the electric wire We is drawn out from the inside to the outside. Further, in the case JB3a, when the electronic component EP is housed, the electric connection body 21 of the other terminal fitting 20 is inserted into and fixed to the inner second terminal connection structure 240B. In the case JB3a, the wire We0 having the terminal fitting EP1 attached to the terminal is drawn out from the inside to the outside.

  As described above, the terminal connection structure 201 of the present modified example is one of the components of the electric connection box JB3 and the wire harness WH3. Therefore, the electrical connection box JB3 and the wire harness WH3 of the present modification can similarly obtain the effect of the terminal connection structure 201.

[Modification 3]
Reference numeral 301 in FIGS. 16 to 20 indicates a terminal connection structure of the present modification. Reference characters JB4 and WH4 in FIG. 16 respectively denote an electric connection box of the present modification provided with the terminal connection structure 301 and a wire harness of the present modification provided with the electric connection box JB4. The same reference numerals as those in the above-described embodiment denote the same parts, parts, and the like in the description of the present modified example as in the embodiment. However, in the description of this modified example, for convenience, the position indicating the respective flat surfaces 11b ₁ and 11b ₂ of the flat plate portion 11b and the position indicating the respective flat surfaces 21b ₁ and 21b ₂ of the flat plate portion 21b are different from the embodiments. It is upside down.

  The terminal connection structure 301 of the present modified example is prepared for electrically connecting one terminal fitting 10 and the other terminal fitting 20 similarly to the terminal connection structure 1 of the above-described embodiment. . In this example, illustration of the other terminal fitting 20 is omitted.

The terminal connection structure 301 includes a conductive electric connection member 330 for electrically connecting one terminal fitting 10 to the other terminal fitting 20 (FIGS. 16 to 18). The electric connection member 330 is formed of a conductive material such as a metal. This exemplary electric connection member 330 is what is called a so-called bus bar, which is press-formed into a plate shape using a metal plate as a base material. The electrical connection member 330, between the flat plate portion 11b of the electric connecting member 11, a plate-like electrical connection 331 that electrically connects superimposed each other on one plane 331a, the 11b ₁ together (FIGS. 16 and 18). A circular through hole 332 is formed in the electric connection portion 331.

  Unlike the specific example of the terminal connection structure 1 of the embodiment, the terminal connection structure 301 includes a separate conductive terminal connection structure 340 that is electrically connected to the electric connection member 330 ( 16 to 20). The terminal connection structure 340 is for physically and electrically connecting one terminal fitting 10 to an electric connection member 330 separate from the terminal connection structure 340. In the terminal connection structure 301, when the other terminal fitting 20 has a flat electrical connection body 21 with a through hole 21a, the other terminal fitting 20 is physically connected to the electrical connection member 330. In addition, the same terminal connection structure 340 as one of the terminal fittings 10 may be provided for electrical connection.

  The terminal connection structure 340 of the present modification includes a holding structure 341 for holding the flat plate portion 11b of the electrical connection body 11, an insertion path 342 for inserting the electric connection body 11 to a holding position by the holding structure 341, and the holding structure 341. And a locking portion 343 that can enter the through-hole 11a of the electrical connector 11 and lock the inner wall surface side of the through-hole 11a (FIG. 18).

  The terminal connection structure 340 can hold the electric connection body 11 by the holding force of the holding structure 341 on the flat plate portion 11b. Further, in the terminal connection structure 340, the occurrence of relative displacement of the electrical connection body 11 can be suppressed by the pair of through holes 11a and the locking portions 343. Therefore, the terminal connection structure 301 of the present modified example is configured such that the pinching force of the pinching structure 341 against the flat plate portion 11b and the mechanism for suppressing the displacement of the electrical connection body 11 by the pair of through holes 11a and the locking portions 343 are used. The connection structure 340 can fix the electric connection body 11.

  Further, in the terminal connection structure 340, since the insertion path 342 of the electric connection body 11 to the holding position by the holding structure 341 is provided, by inserting the electric connection body 11 to the holding position, The stop portion 343 can enter the through hole 11a. That is, in the terminal connection structure 301 of the present modification, the electric connection body 11 can be fixed to the terminal connection structure 340 only by performing a simple connection operation of the electric connection body 11 to the terminal connection structure 340. Thus, the connection workability of the one terminal fitting 10 is excellent.

Specifically, clamping structure 341 of the present modification, sandwiching the electrical connection portion 331 of the flat plate portion 11b and the electric connection member 330 of the electric connecting member 11 while superimposed one flat surface _11b 1, 331a between each other It is formed as one. The clamping structure 341 includes a first pressing portion 341a for covering and through hole 11a by the action of pressing force to the other planes 11b ₂ at the flat plate portion 11b of the electric connecting member 11, the other plane 331b of the electrical connection portion 331 And a second pressing portion 341b for applying a pressing force to the _one flat surface 11b1 of the flat plate portion 11b through the electric connection portion 331 by applying a pressing force to the flat portion 11b (FIG. 16 and FIG. 18).

  The terminal connection structure 340 according to the present modification includes, in addition to the holding structure 341, a holding portion (hereinafter, referred to as a “first locking portion”) 343 protruding from the first pressing portion 341a. A second locking portion 344 that can enter the through hole 332 of the electrical connection portion 331 sandwiched by the structure 341 and lock the inner peripheral wall surface side of the through hole 332 of the electrical connection portion 331; (FIGS. 16 and 18). In this example, the first locking portion 343 and the second locking portion 344 are arranged to face each other.

First pressing portion 341a of this exemplary is piece portion of rectangle is curved in an arc shape, the arcuate surface 341a ₁ of one of the convex side is facing the other plane 11b ₂ of the flat plate portion 11b (FIG. 17 and FIG. 18), exert a pressing force from the arcuate surface 341a ₁ of the one against the other plane 11b ₂ of the flat plate portion 11b (not shown). In this example, the central portion of the arcuate top surface in the first pressing part 341a and is bulged to the hemispherical from one arcuate surface 341a _1, utilizing the protruding portion as the first engagement portion 343 .

Second pressing portion 341b of this example is a rectangular piece portion to be opposed to the other plane 331b of the electrical connection portion 331 the one of the plane 341b _1, the plane 341b ₁ of one of its electrical connections 331 other A pressing force is applied to the flat surface 331b (FIG. 18). In this example, the central portion of the second pressing portion 341b is bulged from _one flat surface 341b1 into a hemispherical shape, and the bulged portion is used as the second locking portion 344.

  In this sandwiching structure 341, one ends of the first pressing portion 341a and the second pressing portion 341b are connected to each other by an arc-shaped connecting portion 341c (FIGS. 16 to 20). In the holding structure 341, the first pressing portion 341a has flexibility, and can be bent with the connecting portion 341c side as a fulcrum.

Terminal connection structure 340 of this modified example further includes a pressing portion 345 for clamping the electrical connection 331 between the plane 341b ₁ of one of the second pressing portion 341b at two locations (17, FIG. 19 and FIG. 20). The pressing portion 345 is a piece that is curved in an arc shape, and one convex-side arc-shaped surface 345a is disposed to face one flat surface 331a of the electric connection portion 331, and the one arc-shaped surface 345a is connected to the electric connection portion 331. A pressing force is applied to one of the flat surfaces 331a. The illustrated pressing portion 345 is disposed on one end side of the second pressing portion 341b. One end of the pressing portion 345 and the second pressing portion 341b are connected by a connecting portion 346. The pressing portion 345 has flexibility and can be bent with the connecting portion 346 side as a fulcrum.

In the holding structure 341, the other end of the first pressing portion 341 a and the second pressing portion 341 b serves as an insertion port of the electrical connection body 11. Therefore, in the terminal connection structure 340, the direction from the other end of the first pressing portion 341a and the second pressing portion 341b toward one end is the insertion path 342 of the electrical connection body 11. Further, the clamping structure 341, the distance between the one flat surface 341b ₁ and an imaginary plane in which the top surface is contained in the and parallel to the plane 341b ₁ of the one first pressing portion 341a of the second pressing portion 341b The first pressing portion 341a and the second pressing portion 341b are formed so as to be smaller than the total thickness of the flat portion 11b and the electrical connecting portion 331 within a range that does not hinder the insertion operation of the electrical connecting body 11. .

  In the terminal connection structure 340, for example, the electric connection portion 331 of the electric connection member 330 is inserted from the insertion port, and the second locking portion 344 is inserted into the through hole 332 of the electric connection portion 331. The electric connection portion 331 is sandwiched between the second pressing portion 341b and the pressing portion 345.

In this terminal connection structure 340, when the electric connection body 331 is sandwiched and the electric connection body 11 is inserted from the insertion port, one flat surface 11 b ₁ of the flat plate part 11 b is engaged with the electric connection part 331. while locked, deflect other plane 11b ₂ of the flat plate portion 11b is moved down the first pressing part 341a. In this terminal connection structure 340, when the electric connection body 11 is inserted to the holding position along the insertion path 342, the first locking portion 343 enters the through hole 11 a of the electric connection body 11, The amount of bending of the one pressing portion 341a decreases. At this time, in the terminal connection structure 340, the flat portion 11b of the electrical connection body 11 and the electrical connection portion 331 are sandwiched between the first pressing portion 341a and the second pressing portion 341b. In the terminal connection structure 340, the pair of through holes 11 a and the first locking portions 343 cause relative displacement of the electric connection body 11 with respect to the first pressing portion 341 a and the second pressing portion 341 b. And the occurrence of relative displacement of the electrical connection portion 331 with respect to the first pressing portion 341a and the second pressing portion 341b by the pair of through holes 332 and the second locking portion 344. Can be. Therefore, similarly to the terminal connection structure 1 of the embodiment, the terminal connection structure 301 of the present modified example includes the pinching force of the pinching structure 341 on the flat plate portion 11b and the pair of through holes 11a and the first locking portions 343. The electrical connection body 11 can be fixed by the terminal connection structure 340 by the displacement prevention mechanism of the electrical connection body 11.

  Further, in the terminal connection structure 340, as in the first terminal connection structure 40A of the embodiment, since the insertion path 342 of the electric connection body 11 to the holding position by the holding structure 341 is provided, By inserting the electric connection body 11 to the holding position, the first locking portion 343 can enter the through hole 11a. That is, the terminal connection structure 301 of the present modification is similar to the terminal connection structure 1 of the embodiment, in that the terminal connection structure 340 is simply connected to the terminal connection structure 340 by simple operation. Since the electrical connection body 11 can be fixed to the first terminal fitting 10, the connection workability of the one terminal fitting 10 is excellent.

  Further, since the terminal connection structure 340 has such a configuration, the terminal connection structure 340 can be a terminal fitting having a through hole formed in a flat electric connection body, and can be inserted along the insertion path 342 to the clamping position. If it is a possible terminal fitting, whether it is a dedicated terminal fitting or an existing terminal fitting (one terminal fitting 10), the terminal fitting can be used as a connection target.

  As described above, the terminal connection structure 301 of the present modified example is excellent in the connection workability of the respective terminal fittings 10 and 20, and the existing terminal fitting (one terminal fitting 10) can be applied.

  Here, this terminal connection structure 301 becomes one of the components of the electric connection box JB4 by being housed in the housing JB4a (FIGS. 16 and 18). The electric connection box JB4 constitutes a wire harness WH4 together with the electric wire We drawn from the inside of the housing JB4a to the outside as described below. Therefore, the terminal connection structure 301 becomes one of the components of the wire harness WH4 by being housed in the housing JB4a of the electric connection box JB4.

  The housing JB4a is formed of an insulating material such as a synthetic resin to house the one terminal fitting 10, the other terminal fitting 20, the electrical connection member 330, and the terminal connection structure 340. In this example, one terminal fitting 10 and the electrical connection member 330 are connected in advance by the terminal connection structure 340. In the housing JB4a, the connection body is housed inside and fixed. Thus, in the case JB4a, the electric wire We attached to the one terminal fitting 10 is drawn out from the inside to the outside.

  As described above, the terminal connection structure 301 of the present modified example is one of the components of the electric connection box JB4 and the wire harness WH4. Therefore, the electric connection box JB4 and the wire harness WH4 of the present modification can similarly obtain the effects of the terminal connection structure 301.

1, 101, 201, 301 Terminal connection structure 10 One terminal fitting 11 Electrical connection body 11a Through hole 11b Flat plate part 11b ₁ One plane 11b _{2 The} other plane 20 The other terminal fitting 21 Electric connection body 21a Through hole 21b Flat plate part 21b ₁ One plane 21b _{2 The} other plane 30, 130, 230, 330 Electrical connection member 40, 140, 240, 340 Terminal connection structure 40A, 140A, 240A First terminal connection structure 40B, 140B, 240B Second terminal Connection structure 41, 141, 241, 341 Holding structure 41a, 141a, 341a First pressing portion 41b, 141b, 341b Second pressing portion 42, 142, 242, 342 Insertion path 43, 143, 243 Locking portion 241a Opposing wall Body 241b Pressing part 331 Electric connection part 331a One plane 331 b Other flat surface 332 Through hole 343 First locking portion 344 Second locking portion JB1, JB2, JB3, JB4 Electrical connection box JB1a, JB2a, JB3a, JB4a Housing We, We0 Wire WH1, WH2, WH3, WH4 Wire Harness

Claims (8)

A conductive electrical connection member for electrically connecting one terminal fitting having a through hole formed in a flat electrical connection body to the other terminal fitting,
A separate conductive terminal connection structure electrically connected to the terminal connection structure or the electric connection member of the electric connection member,
With
The terminal connection structure includes a holding structure for holding the flat portion of the electric connection body, an insertion path for inserting the electric connection body to a holding position by the holding structure, and the electric connection held by the holding structure. A terminal connection structure comprising: a locking portion that can enter the through hole of the body and lock an inner peripheral wall surface side of the through hole. The holding structure is configured to apply a pressing force to one plane in the flat plate portion of the electrical connection body and to apply a pressing force to the other flat surface in the flat plate portion and a first pressing portion that covers the through hole. At least one second pressing portion to be actuated,
The terminal connection structure according to claim 1, wherein the locking portion projects from the first pressing portion. The holding structure is configured to apply a pressing force to one plane in the flat plate portion of the electrical connection body and to apply a pressing force to the other flat surface in the flat plate portion and a first pressing portion that covers the through hole. And two second pressing portions to act on,
The second pressing portion has a fixed end provided on the first pressing portion, a free end disposed to face the other plane of the flat plate portion, and the free end of the flat plate portion with respect to the other flat surface. A cantilever piece that applies a pressing force to the other flat surface of the flat plate portion from the opposing wall surface,
2. The terminal connection structure according to claim 1, wherein the locking portions project from the free ends of the respective second pressing portions. 3.   The sandwiching structure includes an opposing wall body that is arranged to face one of the flat surfaces of the flat portion of the electrical connection body, and protrudes from the opposing wall body and applies a pressing force to an inner peripheral wall surface side of the through hole. The terminal connection structure according to claim 1, further comprising: a locking portion; and at least one pressing portion that applies a pressing force to the other flat surface of the flat plate portion. The electrical connection member separate from the terminal connection structure is a flat electrical connection portion configured to overlap and electrically connect one of the planes to the flat portion of the electrical connection body. Has,
The holding structure is configured to apply a pressing force to the other flat surface of the flat portion of the electric connection body and to cover the through hole, and a pressing force to the other flat surface of the electric connection portion. And a second pressing portion for applying a pressing force to the one flat surface of the flat plate portion via the electrical connection portion,
The terminal connection structure is inserted into a first locking portion as the locking portion protruding from the first pressing portion, and penetrates into a through hole of the electrical connection portion held by the holding structure. 2. The terminal connection structure according to claim 1, further comprising: a second locking portion that can lock an inner peripheral wall surface side of the through hole of the electric connection portion. 3.   In the case where the other terminal fitting has a flat electrical connection body having a through hole formed therein, the terminal connection structure is provided on both the one terminal fitting side and the other terminal fitting side. The terminal connection structure according to any one of claims 1 to 5, wherein A conductive electrical connection member for electrically connecting one terminal fitting having a through hole formed in a flat electrical connection body to the other terminal fitting,
A separate conductive terminal connection structure electrically connected to the terminal connection structure or the electric connection member of the electric connection member,
A housing that houses the one terminal fitting, the other terminal fitting, the electrical connection member, and the terminal connection structure;
With
The terminal connection structure includes a holding structure for holding the flat portion of the electric connection body, an insertion path for inserting the electric connection body to a holding position by the holding structure, and the electric connection held by the holding structure. And an engaging portion which can enter the through hole of the body and lock an inner peripheral wall side of the through hole. One terminal fitting in which a through hole is formed in a flat electric connection body,
The other terminal fitting,
A conductive electrical connection member for electrically connecting the one terminal fitting to the other terminal fitting,
A separate conductive terminal connection structure electrically connected to the terminal connection structure or the electric connection member of the electric connection member,
A housing that houses the one terminal fitting, the other terminal fitting, the electrical connection member, and the terminal connection structure, and draws an electric wire from the inside to the outside,
With
The terminal connection structure includes a holding structure for holding the flat portion of the electric connection body, an insertion path for inserting the electric connection body to a holding position by the holding structure, and the electric connection held by the holding structure. A wire harness having a locking portion that can enter the through hole of the body and lock the inner peripheral wall surface side of the through hole.

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