Wire harness

Abstract

To prevent improper connection of a connector.SOLUTION: A wire harness comprises: a plurality of electric wire groups with a connector, having a plurality of electric wires with the connector in which connectors 52A and 52B are connected to electric wires Wb1 and Wb2; and an electric connection box 1 comprising mating connectors 27a and 27b in each connector. The electric connection box comprises an electric connection tool 20 that is housed in a housing chamber 10a making the plurality of electric wire groups with the connector drawn in from the outside, and has a mating connector group which is a combination of the mating connectors provided at the connectors of the electric wire groups with the connector, for each electric wire group with the connector. Each electric wire group with the connector comprises an electric wire holding tool 56 that binds each own electric wire into one and fixes it to a fixed part 27d of the electric connection tool. In the electric connection tool, a combination of the mating connector group and the fixed part provided so as to correspond to each connector and the electric wire holding tool in each electric wire group with the connector is arranged in parallel in each electric wire group with the connector.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to a wire harness. [Background technology]

[0002] Conventionally, vehicles are equipped with an electrical connection box that electrically connects electric wires on a first connection object side and electric wires on a second connection object side within a housing, for example, by being interposed between a secondary battery and multiple power supply objects to distribute power to each of the power supply objects. An electric connector that includes electric components (circuit protection components, relay components, etc.) and conductive members and electrically connects the electric wires via these components is housed in an accommodation chamber inside the housing. This electric connector includes a mating connector into which a connector at the end of the electric wire is mated and connected. The electric connection box and the electric wires form a wire harness. For example, Patent Document 1 listed below discloses this type of wire harness. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2014-93888 Summary of the Invention [Problem to be solved by the invention]

[0004] In electrical junction boxes, the combination of a mating connector and a mating connector to be mated is predetermined. In some cases, the electrical junction box uses multiple connectors that are identical or similar in appearance and difficult to distinguish from one another. In such cases, measures are needed to prevent the connector from being connected incorrectly to the wrong mating connector.

[0005] SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide a wire harness that can prevent incorrect connection of connectors. [Means for solving the problem]

[0006] The present invention comprises an electrical connection box that includes a plurality of groups of electric wires with connectors, each group having a plurality of electric wires with connectors, each having a connector connected to an end of the electric wire, and that includes a mating connector for each of the connectors to be mated and connected to each of the connectors in the plurality of groups of electric wires with connectors. The electrical connection box includes a housing that has a storage chamber into which the plurality of groups of electric wires with connectors are drawn in from the outside, and an electric connecting device that includes, for each group of electric wires with connectors, a group of mating connectors that are stored in the storage chamber and that are combined with the mating connectors provided for each of the connectors in the groups of electric wires with connectors, and the groups of electric wires with connectors include a wire holder that bundles each of the electric wires and fixes them to a fixed portion of the electric connecting device, and the electric connecting device arranges the combinations of the group of mating connectors and the fixed portion that are provided corresponding to each of the connectors and the wire holder in the groups of electric wires with connectors side by side for each group of electric wires with connectors. [Effects of the Invention]

[0007] In the wire harness according to the present invention, the wire holder can be assembled to the fixed portion for each group of electric wires with connectors. For a group of electric wires with connectors, the wire holder is first assembled to the fixed portion, and each connector that precedes the wire holder can be mated and connected to its corresponding mating connector. Therefore, in this wire harness, the assembly of such groups of electric wires with connectors can be performed from the end in the order of the multiple fixed portions. Therefore, in this wire harness, for each group of mating connectors, the mating connectors arranged next to the wire holder assembled to the fixed portion can be targeted, and each connector that precedes the wire holder can be mated and connected to each mating connector of the mating connector group. Therefore, this wire harness can prevent incorrect connection of groups of electric wires with connectors to electrical connecting devices, thereby improving the ease of assembly. [Brief explanation of the drawings]

[0008] [Figure 1] FIG. 1 is a perspective view showing an electrical junction box according to an embodiment. [Figure 2] FIG. 2 is a cross-sectional view taken along line XX in FIG. [Figure 3] FIG. 3 is a perspective view showing the electrical junction box of the embodiment with the cover removed. [Figure 4] FIG. 4 is a perspective view of the case body as seen from the opening side. [Figure 5] FIG. 5 is a perspective view of the electric connecting device together with the electric wires and the like, as viewed from the top side. [Figure 6] FIG. 6 is a perspective view of the electrical connecting device together with the electric wires and the like, as viewed from the bottom side. [Figure 7] FIG. 7 is a plan view of the electrical connecting device together with the electric wires and the like, viewed from the bottom side. [Figure 8] FIG. 8 is a perspective view showing the electric connecting device with the cover member removed. [Figure 9] FIG. 9 is an exploded perspective view showing the internal structure of the electrical connecting device together with the bottom connector. DETAILED DESCRIPTION OF THE INVENTION

[0009] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of a wire harness according to the present invention will be described in detail with reference to the accompanying drawings. However, the present invention is not limited to these embodiments.

[0010] [Embodiment] One embodiment of a wire harness according to the present invention will be described with reference to FIGS. 1 to 9. FIG.

[0011] 1 to 3, reference numeral 1 denotes an electric junction box of this embodiment, and reference numeral WH denotes a wire harness of this embodiment that includes the electric junction box 1.

[0012] The electrical junction box 1 is interposed between a first connection object (not shown) and a second connection object (not shown), and pulls inward the electric wires on the first connection object and the second connection object to electrically connect them (FIGS. 1 to 3). The electrical junction box 1, together with the electric wires, constitutes a wire harness WH. The electrical junction box 1 and wire harness WH exemplified here are mounted on vehicles such as electric vehicles and hybrid vehicles, and distribute power to the power distribution objects by electrically connecting a secondary battery as the first connection object and a power distribution object as the second connection object (for example, an auxiliary device to be supplied with power).

[0013] In this wire harness WH, shielded wires are used for each of the electric wires to prevent external noise from entering. Although not shown, each of the electric wires includes a cylindrical conductive core wire, a cylindrical insulating inner coating (inner sheath) that concentrically covers the core wire, a cylindrical conductive braided body that concentrically covers the inner coating, and a cylindrical insulating outer coating (outer sheath) that concentrically covers the braided body.

[0014] The wire harness WH includes a plurality of connector-equipped electric wires, each having a connector connected to an end of the electric wire on the first object to be connected to, and a plurality of connector-equipped electric wires, each having a connector connected to an end of the electric wire on the second object to be connected to, and further includes one group of connector-equipped electric wires (hereinafter referred to as the "first group of connector-equipped electric wires") including a plurality of the connector-equipped electric wires on the first object to be connected to, and a plurality of groups of connector-equipped electric wires (hereinafter referred to as the "second group of connector-equipped electric wires") including a plurality of the connector-equipped electric wires on the second object to be connected to,

[0015] The electrical junction box 1 includes a metal housing 10 (FIGS. 1 to 4). The electrical junction box 1 also includes a conductive electric connecting device 20 inside the housing 10 that electrically connects a connector-equipped electric wire on the first connection object side with a connector-equipped electric wire on the second connection object side (FIGS. 2, 3, and 5 to 8). The electrical junction box 1 also includes a terminal fitting 30 that releases noise carried on the braid of the electric wire on the second connection object side (FIGS. 2, 3, and 5 to 7). Furthermore, this electrical connection box 1 is provided with a wire insertion portion (second wire insertion portion described later) 16 through which the wire on the second connection object side is inserted from the inside to the outside of the housing 10, and therefore, as a waterproof and dustproof measure for the storage chamber 10a of the housing 10, it is provided with a waterproof and dustproof member 40 that prevents liquid and dust from entering the storage chamber 10a from outside the housing 10 through the second wire insertion portion 16 (Figures 1 to 3 and Figures 5 to 7).

[0016] In the wire harness WH, each connector of one first group of electric wires with connectors (hereinafter referred to as the "opening-side connector") is mated and connected to the electric connecting device 20 at an opening (access opening 10b described later) at one end of the housing 10, and each connector of a plurality of second groups of electric wires with connectors (hereinafter referred to as the "bottom-side connector") is mated and connected to the electric connecting device 20 at the bottom wall 12 described later at the other end of the housing 10. As will be described in detail later, the electric connecting device 20 is provided with a mating connector (hereinafter referred to as the "mating opening-side connector") for each opening-side connector of one first group of electric wires with connectors to be mated and connected. This electric connecting device 20 is provided with one mating connector group (hereinafter referred to as the "first mating connector group") that combines the mating opening-side connectors provided for each opening-side connector of one first group of electric wires with connectors. Furthermore, as will be described in detail later, the electrical connecting device 20 is provided with a mating connector (hereinafter referred to as a "mating bottom-side connector") for each bottom-side connector of the plurality of second connector-attached electric wire groups into which the bottom-side connectors of each of the plurality of second connector-attached electric wire groups are mated. The electrical connecting device 20 is provided with a mating connector group (hereinafter referred to as a "second mating connector group") for each second connector-attached electric wire group, which is a combination of the mating bottom-side connectors provided for each of the plurality of second connector-attached electric wire groups.

[0017] The first group of connector-equipped electric wires shown here includes two connector-equipped electric wires. One of the connector-equipped electric wires is an electric wire on the first connection object side, and includes a first electric wire (hereinafter referred to as the "first opening-side electric wire") Wo1 to be electrically connected to the electric connecting device 20 at the opening at one end of the housing 10 (the access opening 10b described later) side, and a first connector (hereinafter referred to as the "first opening-side connector") 51A physically and electrically connected to one end of the first opening-side electric wire Wo1 (FIG. 3). The other connector-equipped electric wire is an electric wire on the first connection object side, and includes a second electric wire (hereinafter referred to as the "second opening-side electric wire") Wo2 to be electrically connected to the electric connecting device 20 at the opening at one end of the housing 10 (the access opening 10b described later) side, and a second connector (hereinafter referred to as the "second opening-side connector") 51B physically and electrically connected to one end of the second opening-side electric wire Wo2 (FIG. 3). In the first connector-equipped electric wire group exemplified here, one of the first opening-side electric wire Wo1 and the second opening-side electric wire Wo2 is a positive electrode electric wire and the other is a negative electrode electric wire, and the first opening-side electric wire Wo1 and the second opening-side electric wire Wo2 are electrically connected to a secondary battery as a first connection object. Although not shown here, a connector is provided at the other end of each of the first opening-side electric wire Wo1 and the second opening-side electric wire Wo2 to electrically connect them to the first connection object.

[0018] In the electrical junction box 1, the first opening-side electric wires Wo1 and the second opening-side electric wires Wo2 of this first group of electric wires with connectors are pulled into the housing 10 from the outside together with the first opening-side connector 51A and the second opening-side connector 51B. In this electrical junction box 1, the first opening-side connector 51A and the second opening-side connector 51B are fitted and connected to the first mating opening-side connector 28a and the second mating opening-side connector 28b (described later) of the electrical connecting device 20, respectively, on the opening side at one end of the housing 10 (the access opening 10b (described later)).

[0019] The second group of electric wires with connectors shown here includes two electric wires with connectors. One of the electric wires with connectors is an electric wire on the second connection object side, and includes a first electric wire (hereinafter referred to as the "first bottom-side electric wire") Wb1 to be electrically connected to an electric connecting device 20 on the side of the bottom wall 12 (described later) at the other end of the housing 10, and a first connector (hereinafter referred to as the "first bottom-side connector") 52A physically and electrically connected to one end of the first bottom-side electric wire Wb1 (FIGS. 2, 6, and 7). The other connector-attached electric wire is an electric wire on the second connection object side, and includes a second electric wire (hereinafter referred to as the "second bottom-side electric wire") Wb2 that is electrically connected to the electric connecting device 20 on the side of the bottom wall 12 (described later) at the other end of the housing 10, and a second connector (hereinafter referred to as the "second bottom-side connector") 52B that is physically and electrically connected to one end of the second bottom-side electric wire Wb2 (FIGS. 2, 6, and 7). In the second connector-attached electric wire group exemplified here, one of the first bottom-side electric wire Wb1 and the second bottom-side electric wire Wb2 is an electric wire for a positive electrode, and the other is an electric wire for a negative electrode, and the first bottom-side electric wire Wb1 and the second bottom-side electric wire Wb2 are electrically connected to a power distribution object as a second connection object. That is, the second connector-attached electric wire group includes a first bottom-side electric wire Wb1 of either positive or negative polarity and a second bottom-side electric wire Wb2 of either positive or negative polarity in the same circuit. Although not shown here, the other ends of the first bottom-side electric wire Wb1 and the second bottom-side electric wire Wb2 are provided with connectors for electrical connection to the second connection object.

[0020] In the electrical junction box 1, the first bottom-side electric wires Wb1 and the second bottom-side electric wires Wb2 of the second connector-attached electric wire group are pulled into the housing 10 from the outside together with the first bottom-side connector 52A and the second bottom-side connector 52B. In the electrical junction box 1, the first bottom-side connector 52A and the second bottom-side connector 52B are fitted and connected to the first mating bottom-side connector 27a and the second mating bottom-side connector 27b of the electrical connecting device 20, respectively, on the side of the bottom wall 12, which will be described later, at the other end of the housing 10.

[0021] The wire harness WH shown here includes seven such groups of electric wires with second connectors.

[0022] The housing 10 is made of a metal material such as aluminum or an aluminum alloy, and is fixed to a conductive vehicle body (not shown). The housing 10 has a housing chamber 10a into which one first group of electric wires with connectors and multiple second groups of electric wires with connectors are drawn from the outside (FIGS. 2 to 4). The housing 10 also has an access opening 10b for inserting and assembling components to be placed in the housing chamber 10a (FIGS. 3 and 4).

[0023] The electric connecting device 20, one first connector-equipped group of electric wires, and multiple second connector-equipped groups of electric wires are inserted into the accommodation chamber 10a through the access opening 10b. The electric connecting device 20 electrically connects the first opening-side electric wires Wo1 and the second opening-side electric wires Wo2 of the first connector-equipped group of electric wires to the first bottom-side electric wires Wb1 and the second bottom-side electric wires Wb2 of the multiple second connector-equipped groups of electric wires, respectively, within the accommodation chamber 10a.

[0024] The housing 10 shown here comprises a metal case body 10A and a metal cover 10B (FIGS. 1 and 2). The housing 10 is fixed to the vehicle body with the access opening 10b facing upward. For example, the case body 10A is fixed to the floor panel of the vehicle body with screws.

[0025] The case body 10A has a cylindrical outer peripheral wall 11 (FIGS. 1 to 4). In this case body 10A, the inner space surrounded by the outer peripheral wall 11 is used as the storage chamber 10a, and an opening on the inside of an annular end portion at one end of the outer peripheral wall 11 in the cylindrical axis direction is used as an access opening 10b. The cover 10B is assembled to the annular end face of the annular end portion at one end to close the opening at that end (access opening 10b). The outer peripheral wall 11 shown here has a flat surface that is located on the same plane as the annular end face at that end, and has a flange portion 11a that protrudes annularly outward from the annular end portion at that end (FIGS. 2 to 4). The cover 10B is assembled to this flange portion 11a.

[0026] Case body 10A has a cylindrical outer peripheral wall 11 that is open at one end, and the opening at the other end is closed by bottom wall 12 (FIGS. 1 to 4). Therefore, in case body 10A, outer peripheral wall 11 and bottom wall 12 together surround storage chamber 10a, which is in communication with working opening 10b at one end of outer peripheral wall 11.

[0027] In this case body 10A, the electric connecting device 20 is inserted into the accommodation chamber 10a from an opening at one end (access opening 10b), and the electric connecting device 20 accommodated in this accommodation chamber 10a is fixed with screws from the access opening 10b.

[0028] The electric connecting device 20 is interposed between the first opening-side connector 51A at the end of the first opening-side electric wire Wo1 and the first bottom-side connector 52A at the end of the first bottom-side electric wire Wb1, thereby indirectly electrically connecting the first opening-side electric wire Wo1 and the first bottom-side electric wire Wb1. The electric connecting device 20 is also interposed between the second opening-side connector 51B at the end of the second opening-side electric wire Wo2 and the second bottom-side connector 52B at the end of the second bottom-side electric wire Wb2, thereby indirectly electrically connecting the second opening-side electric wire Wo2 and the second bottom-side electric wire Wb2.

[0029] The electric connecting device 20 includes a first mating connector group arranged in the accommodation chamber 10a on the side of the opening (access opening 10b) at one end of the housing 10. The first mating connector group shown here includes a first mating opening connector 28a that fits and connects the first opening connector 51A of the first connector-attached electric-wire group, and a second mating opening connector 28b that fits and connects the second opening connector 51B of the first connector-attached electric-wire group (FIGS. 2, 5, and 6). The first mating opening connector 28a includes a first terminal portion (hereinafter referred to as "first opening terminal portion") 22b to which the first opening-side electric wire Wo1 is electrically connected via the first opening-side connector 51A (FIGS. 8 and 9). The second mating opening side connector 28b also has a second terminal portion (hereinafter referred to as the "second opening side terminal portion") 26b to which the second opening side electric wire Wo2 is electrically connected via the second opening side connector 51B (Figures 8 and 9).

[0030] Furthermore, this electrical connecting device 20 includes a plurality of second mating connector groups arranged in the accommodation chamber 10a on the side of the bottom wall 12 at the other end of the housing 10. The second mating connector group shown here includes a first mating bottom-side connector 27a that matingly connects the first bottom-side connector 52A of the second connector-attached electric-wire group, and a second mating bottom-side connector 27b that matingly connects the second bottom-side connector 52B of the second connector-attached electric-wire group (FIGS. 2, 6, and 7). The first mating bottom-side connector 27a includes a first terminal portion (hereinafter referred to as the "first bottom-side terminal portion") 25b to which the first bottom-side electric wire Wb1 is electrically connected via the first bottom-side connector 52A (FIG. 9). Second mating bottom-side connector 27b has second terminal portion 26c (hereinafter referred to as "second bottom-side terminal portion") to which second bottom-side electric wire Wb2 is electrically connected via second bottom-side connector 52B (FIG. 9). Such a second mating connector group is provided for each second connector-attached electric wire group.

[0031] Furthermore, this electrical connecting device 20 includes an electrically insulating member (conductor holding member 27 and cover member 28, which will be described later) that holds first opening-side terminal portion 22b of first mating opening-side connector 28a in a state that allows mating connection with first opening-side connector 51A, and that holds second opening-side terminal portion 26b of second mating opening-side connector 28b in a state that allows mating connection with second opening-side connector 51B. This insulating member also holds first bottom-side terminal portion 25b of first mating bottom-side connector 27a in a state that allows mating connection with first bottom-side connector 52A, and holds second bottom-side terminal portion 26c of second mating bottom-side connector 27b in a state that allows mating connection with second bottom-side connector 52B.

[0032] In this electrical connecting device 20, each first mating bottom-side connector 27a and each second mating bottom-side connector 27b are arranged so that the mating connection directions of first bottom-side connector 52A and second bottom-side connector 52B are all the same (FIGS. 6 and 7). Each first mating bottom-side connector 27a and each second mating bottom-side connector 27b are arranged side by side in the same arrangement direction (hereinafter referred to as the "mating connector arrangement direction") (FIGS. 6 and 7). Furthermore, in this electrical connecting device 20, as shown above, each first mating bottom-side connector 27a and each second mating bottom-side connector 27b are combined as a second mating connector group (FIGS. 6 and 7). A pair of first mating bottom side connector 27a and second mating bottom side connector 27b in this second mating connector group is arranged in a direction perpendicular to the mating connector arrangement direction for each second mating connector group.

[0033] Specifically, the electrical connecting device 20 shown here includes an electrical component 21 interposed between the first opening-side terminal portion 22b and the first bottom-side terminal portion 25b (i.e., between the first opening-side electric wire Wo1 and the first bottom-side electric wire Wb1) (FIGS. 8 and 9). The electrical component 21 includes a first terminal portion 21a electrically connected to the first opening-side terminal portion 22b and a second terminal portion 21b electrically connected to the first bottom-side terminal portion 25b. Here, a fuse provided with a fuse body 21c is shown as an example of the electrical component 21. The electrical connecting device 20 includes the same number of electrical components 21 as the second group of electric wires with connectors (second group of mating connectors). Furthermore, in the electrical connecting device 20, the electrical components 21 are arranged side by side in the direction in which the mating connectors are arranged.

[0034] The electric connecting device 20 includes a conductive member (hereinafter referred to as "first conductive member") 22 that indirectly electrically connects the first opening-side electric wire Wo1 to each electric component 21, thereby indirectly electrically connecting the first opening-side electric wire Wo1 to each first bottom-side electric wire Wb1 of the second connector-attached electric-wire group (FIGS. 8 and 9). The first conductive member 22 is a so-called bus bar formed into a predetermined shape using, for example, a metal plate as a base material. The first conductive member 22 has a main body 22a that electrically connects the first terminal portion 21a of each electric component 21, and the first opening-side terminal portion 22b (FIGS. 8 and 9).

[0035] The main body 22a shown here is formed in a rectangular flat plate shape (FIG. 9). In the electric connecting device 20, the first conductive member 22 is arranged so that the longitudinal direction of the main body 22a is aligned with the arrangement direction of the mating connectors. The main body 22a has the same number of circular through holes 22c formed at equal intervals along the longitudinal direction as the electrical components 21. The electrical components 21 have circular through holes 21d in their first terminal portions 21a that are arranged coaxially with the through holes 22c of the main body 22a. Male screw members 23A are inserted through the through holes 21d, 22c, and female screw members 24A are screwed into the male screw members 23A, respectively, to secure the first terminal portions 21a to the main body 22a (FIGS. 8 and 9). Here, the first conductive member 22 is integrated with a conductor holding member 27, which will be described later, with one flat surface of the main body 22a exposed. Here, the male screw members 23A for each electrical component 21 inserted into the through holes 22c of the main body 22a are provided like stud bolts to the conductor holding member 27. The first terminal portion 21a is placed on the exposed surface of the main body 22a with the male screw members 23A inserted into the through holes 21d, and is fixed to the main body 22a with screws.

[0036] The first opening-side terminal portion 22b is a terminal portion that extends downward from the plane of the main body 22a (FIG. 9). The first opening-side terminal portion 22b is integral with the conductor holding member 27 and protrudes from the conductor holding member 27. The first opening-side terminal portion 22b shown here is disposed at one longitudinal end of the main body 22a and protrudes within the accommodating chamber 10a along the cylindrical axis of the outer peripheral wall 11 toward the access opening 10b. The first opening-side terminal portion 22b shown here is formed in a so-called male tab shape. The first opening-side connector 51A is configured as a female connector and is inserted into the accommodating chamber 10a together with the first opening-side electric wire Wo1 from the access opening 10b side and mated with the first mating opening-side connector 28a.

[0037] Furthermore, the electrical connecting device 20 electrically connects the second terminal portion 21b of the electrical component 21 to the first bottom-side electric wire Wb1. The electrical connecting device 20 includes a conductive member (hereinafter referred to as the "second conductive member") 25 interposed between the second terminal portion 21b and the first bottom-side electric wire Wb1 to indirectly electrically connect the second terminal portion 21b to the first bottom-side electric wire Wb1 (FIGS. 8 and 9). The second conductive member 25 is a so-called bus bar formed into a predetermined shape using, for example, a metal plate as a base material. The second conductive member 25 includes a main body 25a that electrically connects the second terminal portion 21b of the electrical component 21 and the first bottom-side terminal portion 25b (FIG. 9). The electrical connecting device 20 includes a second conductive member 25 for each electrical component 21. The electrical components 21 in the electrical connecting device 20 are arranged side by side in the direction in which the mating connectors are arranged.

[0038] The main body 25a shown here is formed as a flat, plate-like piece (FIG. 9). A circular through-hole 25c is formed in the main body 25a. The second terminal portion 21b of the electrical component 21 has a circular through-hole 21d arranged coaxially with the through-hole 25c of the main body 25a. The second terminal portion 21b is fixed to the main body 25a by screwing a male screw member 23B inserted through the through-holes 21d and 25c with a female screw member 24B (FIGS. 8 and 9). The second conductive members 25 for each electrical component 21 are arranged at the same intervals as the through-holes 22c of the first conductive member 22 and in the same direction as the through-holes 22c (i.e., the mating connector arrangement direction) (FIG. 9). Here, each second conductive member 25 is integrated with a conductor holding member 27 (described later) with one flat surface of the main body 25a exposed. Here, male screw member 23B inserted into through hole 25c of main body 25a is provided like a stud bolt to conductor holding member 27. Second terminal portion 21b is placed on the exposed surface of main body 25a with male screw member 23B inserted into through hole 21d, and is fixed to main body 25a with screws.

[0039] First bottom-side terminal portion 25b is a terminal portion that extends downward from main body 25a relative to the plane thereof (FIG. 9). First bottom-side terminal portion 25b is integral with conductor holding member 27 and protrudes from main body 25a in the opposite direction to first opening-side terminal portion 22b. That is, first bottom-side terminal portion 25b shown here protrudes along the cylindrical axis of outer peripheral wall 11 and toward bottom wall 12 within accommodating chamber 10a. First bottom-side terminal portion 25b shown here is formed in the shape of a so-called male tab. First bottom-side connector 52A is configured as a female connector and is mated and connected to first mating bottom-side connector 27a before electrical connecting device 20 is accommodated in accommodating chamber 10a.

[0040] Furthermore, this electric connecting device 20 includes a conductive member (hereinafter referred to as a "third conductive member") 26 that indirectly electrically connects the second opening-side electric wires Wo2 to the second bottom-side electric wires Wb2 of each second connector-equipped electric wire group (FIGS. 8 and 9). This third conductive member 26 is a so-called bus bar formed into a predetermined shape using, for example, a metal plate as a base material. This third conductive member 26 has a main body 26a, the second opening-side terminal portion 26b, and the second bottom-side terminal portion 26c for each second connector-equipped electric wire group (FIG. 9).

[0041] The main body 26a shown here is formed as an L-shaped flat plate (FIG. 9). The main body 26a is roughly divided into a rectangular long piece 26a1 and a rectangular short piece 26a2. The longitudinal direction of the long piece 26a1 is oriented in the arrangement direction of the respective electrical components 21 and second conductive members 25 (i.e., the mating connector arrangement direction), and the long piece 26a1 is arranged adjacent to the respective second conductive members 25 in a direction perpendicular to the mating connector arrangement direction. Here, as will be described later, the third conductive member 26 is integrated with a conductor holding member 27, described later, with one flat surface of the main body 26a exposed.

[0042] The second opening-side terminal portion 26b is a terminal portion that extends downward from the short piece portion 26a2 of the main body 26a relative to the plane of the main body 26a (FIG. 9). The second opening-side terminal portion 26b is integral with the conductor holding member 27 and protrudes from the conductor holding member 27 in the same direction as the first opening-side terminal portion 22b. That is, the second opening-side terminal portion 26b shown here protrudes in the axial direction of the outer peripheral wall 11 within the accommodating chamber 10a and toward the access opening 10b. The second opening-side terminal portion 26b shown here has the same male tab shape as the first opening-side terminal portion 22b. The second opening-side connector 51B is configured as a female connector and is inserted into the accommodating chamber 10a together with the second opening-side electric wire Wo2 from the access opening 10b side and mated with the second mating opening-side connector 28b.

[0043] Second bottom-side terminal portion 26c is a terminal portion extending downward from long piece portion 26a1 of main body 26a relative to the plane thereof, and one is provided in pair with each second conductive member 25 (FIG. 9). Second bottom-side terminal portion 26c shown here is provided for each second conductive member 25, aligned adjacent to second conductive member 25 in a direction perpendicular to the mating connector arrangement direction, on the long side of long piece portion 26a1 facing second conductive member 25. Second bottom-side terminal portion 26c is integral with conductor holding member 27 and protrudes from long piece portion 26a1 of main body 26a in the same direction as first bottom-side terminal portion 25b. That is, second bottom-side terminal portion 26c shown here protrudes along the cylindrical axis of outer peripheral wall 11 and toward bottom wall 12 within accommodation chamber 10a. Second bottom-side terminal portion 26c shown here is formed in the same male tab shape as first bottom-side terminal portion 25b. The second bottom connector 52B is configured as a female connector, and is mated with and connected to the second mating bottom connector 27b before the electrical connecting device 20 is accommodated in the accommodation chamber 10a.

[0044] Furthermore, this electrical connecting device 20 includes a holding member (hereinafter referred to as "conductor holding member") 27, which serves as the aforementioned insulating member and is responsible for holding the first conductive member 22, the second conductive member 25, and the third conductive member 26, and for fixing them to the housing 10 with screws (FIGS. 2 and 5 to 8). This conductor holding member 27 is molded from an insulating material such as synthetic resin. The conductor holding member 27 shown here is molded integrally with the first conductive member 22, the second conductive member 25, and the third conductive member 26 by insert molding. Here, the conductor holding member 27 is also molded integrally with the male screw members 23A and 23B by insert molding.

[0045] Conductor holding member 27 has main body 22a of first conductive member 22, main body 25a of second conductive member 25, and main body 26a of third conductive member 26 exposed at top surface 27U on the access opening 10b side, and first opening side terminal portion 22b of first conductive member 22 and second opening side terminal portion 26b of third conductive member 26 protruding from top surface 27U toward access opening 10b (FIG. 8). Conductor holding member 27 also has male screw members 23A and 23B protruding from top surface 27U toward access opening 10b.

[0046] Furthermore, conductor holding member 27 accommodates first bottom-side terminal portion 25b of second conductive member 25 and second bottom-side terminal portion 26c of third conductive member 26, which protrude in the opposite direction from first opening-side terminal portion 22b and second opening-side terminal portion 26b, on the bottom wall 12 side. That is, first bottom-side terminal portion 25b is accommodated in undersurface 27L of conductor holding member 27 on the bottom wall 12 side, and a housing portion of first mating bottom-side connector 27a that fits and connects first bottom-side connector 52A is formed for each first mating bottom-side connector 27a (FIG. 6). The housing portion of first mating bottom-side connector 27a shown here opens toward bottom wall 12 in accommodation chamber 10a and is shaped to allow first bottom-side connector 52A to be fitted from the bottom wall 12 side toward access opening 10b. Further, on the lower surface 27L of this conductor holding member 27, a housing portion of second mating bottom-side connector 27b is formed for each second mating bottom-side connector 27b, which has second bottom-side terminal portion 26c therein and into which second bottom-side connector 52B is mated and connected (FIG. 6). The housing portion of second mating bottom-side connector 27b shown here is formed in a shape that opens toward bottom wall 12 in accommodation chamber 10a and allows second bottom-side connector 52B to be fitted from the bottom wall 12 side toward working opening 10b.

[0047] The electrical connecting device 20 further includes a cover member 28 as another insulating member, which is assembled to the conductor holding member 27 and covers the electrical component 21, the main body 22a of the first conductive member 22, the main body 25a of the second conductive member 25, the main body 26a of the third conductive member 26, and the male screw members 23A and 23B from the access opening 10b side (FIGS. 2, 3, 5, and 6). The cover member 28 is molded from an insulating material such as synthetic resin.

[0048] The cover member 28 accommodates the first opening terminal portions 22b protruding from the top surface 27U of the conductor holding member 27, and is formed with a housing portion of a first mating opening connector 28a into which the first opening connector 51A is mated (FIG. 5). The housing portion of the first mating opening connector 28a shown here is formed with a shape that protrudes toward the access opening 10b in the accommodation chamber 10a and allows the first opening connector 51A to be fitted from the access opening 10b toward the bottom wall 12. The cover member 28 also accommodates the second opening terminal portions 26b protruding from the top surface 27U of the conductor holding member 27, and is formed with a housing portion of a second mating opening connector 28b into which the second opening connector 51B is mated (FIG. 5). The housing portion of the second mating opening side connector 28b shown here is formed in a shape that protrudes toward the working opening 10b side in the storage chamber 10a and allows the second opening side connector 51B to be fitted from the working opening 10b side toward the bottom wall 12 side.

[0049] In the case main body 10A, the first group of connector-equipped electric wires is inserted through the working opening 10b into the storage chamber 10a in which the electric connecting device 20 is stored, and the first opening side connector 51A at the end of the first opening side electric wire Wo1 is fitted and connected to the first mating opening side connector 28a of the electric connecting device 20, and the second opening side connector 51B at the end of the second opening side electric wire Wo2 is fitted and connected to the second mating opening side connector 28b of the electric connecting device 20 (Figures 2, 3 and 5).

[0050] In the case body 10A, the outer peripheral wall 11 is cut out from the annular end face at one end on the access opening 10b side, and an electric wire insertion portion (hereinafter referred to as the "first electric wire insertion portion") 13 is formed to allow the first opening side electric wire Wo1 and the second opening side electric wire Wo2 to pass through from the inside to the outside of the housing 10 (in other words, to draw the first opening side electric wire Wo1 and the second opening side electric wire Wo2 from the outside of the housing 10 into the accommodation chamber 10a, or to draw the first opening side electric wire Wo1 and the second opening side electric wire Wo2 from the accommodation chamber 10a to the outside of the housing 10) (FIG. 4). The first electric wire insertion portion 13 shown here is formed in a shape in which the flange portion 11a is also cut out together with the outer peripheral wall 11. The end face of this first wire insertion portion 13 on the access opening 10b side is used as an insertion port when inserting the first opening-side electric wire Wo1 and the second opening-side electric wire Wo2 into this first wire insertion portion 13. This first wire insertion portion 13 forms an opening whose insertion port is blocked by the cover 10B when the cover 10B is attached to the case body 10A. Here, this opening serves as an opening connecting the inside and outside of the housing 10 and is used as an inlet or outlet for the first opening-side electric wire Wo1 and the second opening-side electric wire Wo2. Note that a first wire insertion portion 13 may be provided for each of the first opening-side electric wire Wo1 and the second opening-side electric wire Wo2.

[0051] The first opening-side electric wire Wo1 and the second opening-side electric wire Wo2 shown here are held together by a wire holder 55 made of, for example, synthetic resin, and are fixed to the housing 10 via this wire holder 55 (FIG. 3). The wire holder 55 is disposed in the first wire insertion portion 13. The wire holder 55 is then fixed to the housing 10 by being screwed to the case main body 10A. An electric wire fixing portion 14 having a male screw member B1 such as a stud bolt is provided in the accommodation chamber 10a of the case main body 10A so as to protrude from the inner wall surface 11b of the outer peripheral wall 11 (FIG. 4). The electric wire holder 55 is fixed to the electric wire fixing portion 14 by screwing a female screw member (not shown) into the male screw member B1.

[0052] The electrical connecting device 20 is fixed in the accommodation chamber 10a by screwing the conductor holding member 27 or the cover member 28 to the fixing portion 15 of the housing 10 with a screw member (male screw member or female screw member) (FIG. 4). The fixing portion 15 is a portion that protrudes from the inner wall surface 11b of the outer peripheral wall 11 of the case main body 10A and has a flat surface that faces the access opening 10b and is parallel to the access opening 10b. The fixing portion 15 is formed with a female screw portion N2 whose screw axis is perpendicular to the flat surface (FIG. 4). The conductor holding member 27 or the cover member 28 is provided with a fixed portion 27c that is a flat plate-like piece that protrudes from the outer peripheral surface and is arranged in the accommodation chamber 10a with one flat surface facing the access opening 10b and the other flat surface facing the bottom wall 12 (FIGS. 5, 6, and 8). The fixed portion 27c is formed with a through-hole 27c1 through which a male screw member (not shown) is inserted. The other flat surface of this fixed portion 27c is placed on the flat surface of the fixing portion 15 on the working opening 10b side, and the male screw member inserted into the through hole 27c1 is screwed into the female screw portion N2, thereby fixing the fixed portion 27c to the fixing portion 15. In this way, the conductor holding member 27 or the cover member 28 is fixed to the case main body 10A inside the accommodation chamber 10a. Here, the fixed portion 27c is provided on the conductor holding member 27, and the conductor holding member 27 is fixed to the fixing portion 15 of the housing 10 by screwing.

[0053] This electrical junction box 1 is provided with a plurality of pairs (four pairs in this example) of fixing portions 15 and fixed portions 27c. In this electrical junction box 1, a male screw member (not shown) such as a stud bolt may be provided on the fixing portion 15, and a female screw member (not shown) may be screwed into the male screw member to fix the fixing portion 15 and the fixed portion 27c together.

[0054] The accommodation chamber 10a is roughly divided into a space (hereinafter referred to as the "first accommodation chamber") 10a1 from the electrical connecting device 20 in the assembled chamber to the working opening 10b, and a space (hereinafter referred to as the "second accommodation chamber") 10a2 from the electrical connecting device 20 in the chamber to the bottom wall 12 (FIG. 2). In this accommodation chamber 10a, a first group of electric wires with connectors is accommodated in the first accommodation chamber 10a1, and a first opening-side electric wire Wo1 and a second opening-side electric wire Wo2 of this first group of electric wires with connectors are pulled out to the outside from the first accommodation chamber 10a1. In addition, in this storage chamber 10a, the first bottom side connector 52A and the second bottom side connector 52B in each second connector-attached wire group are accommodated in the second storage chamber 10a2, and the first bottom side wire Wb1 and the second bottom side wire Wb2 in each second connector-attached wire group are pulled from the second storage chamber 10a2 to the first storage chamber 10a1 and then pulled out from the first storage chamber 10a1.

[0055] Each second connector-attached electric wire group is assembled to the electric connecting device 20 before being accommodated in the accommodation chamber 10a. However, the first bottom-side connectors 52A of each second connector-attached electric wire group have housings formed in the same shape. The first mating bottom-side connectors 27a of each second mating connector group also have housings formed in the same shape. Therefore, in this wire harness WH, it is difficult to easily determine which first bottom-side connector 52A should be mated with which first mating bottom-side connector 27a. Therefore, in this wire harness WH, it is desirable to prevent incorrect connection between the first bottom-side connector 52A and the first mating bottom-side connector 27a in advance.

[0056] Furthermore, the second bottom-side connectors 52B of each second connector-attached electric wire group have housings formed in the same shape. The second mating bottom-side connectors 27b of each second mating connector group have housings formed in the same shape. Therefore, in this wire harness WH, it is difficult to easily determine which second bottom-side connector 52B should be mated with which second mating bottom-side connector 27b. Therefore, in this wire harness WH, it is desirable to prevent incorrect connection between the second bottom-side connector 52B and the second mating bottom-side connector 27b.

[0057] Furthermore, here, the respective housing portions of first bottom-side connector 52A and second bottom-side connector 52B are formed in similar shapes that make them difficult to distinguish from one another. And here, the respective housing portions of first mating bottom-side connector 27a and second mating bottom-side connector 27b are formed in similar shapes that make them difficult to distinguish from one another. Therefore, in this wire harness WH, it is desirable to prevent in advance an erroneous connection between first bottom-side connector 52A and second mating bottom-side connector 27b and an erroneous connection between second bottom-side connector 52B and first mating bottom-side connector 27a.

[0058] Therefore, in this wire harness WH, in order to prevent erroneous connection between each of the second connector-equipped electric wire groups and the electric connecting device 20, the following configuration is adopted.

[0059] The second group of electric wires with connectors includes a wire holder 56 that bundles together its own electric wires (here, a set of first bottom-side electric wires Wb1 and second bottom-side electric wires Wb2) and fixes them to the fixed portion 27d of the electric connecting device 20 (FIGS. 2 and 5 to 8). This wire holder 56 is provided for each group of electric wires with connectors.

[0060] The wire holder 56 is molded from an insulating material such as synthetic resin. For example, here, a so-called band clamp having a band portion 56a that is wound around each of the wires (here, a set of the first bottom-side electric wire Wb1 and the second bottom-side electric wire Wb2) to bundle them together, and a fixing portion 56b that is fitted into the through-hole-shaped fixed portion 27d of the electrical connecting device 20 to fix it, is used as the wire holder 56 (FIGS. 2, 5, and 6).

[0061] In the electrical connecting device 20, mating connectors (here, a pair of first mating bottom-side connector 27a and second mating bottom-side connector 27b) are provided that correspond to the respective connectors of the second connector-attached electric wire group (here, a pair of first bottom-side connector 52A and second bottom-side connector 52B), and the respective mating connectors form a second mating connector group. In this electrical connecting device 20, one pair of second mating connector groups is provided for each second connector-attached electric wire group. Furthermore, in the electrical connecting device 20, one fixed portion 27d is provided for each second connector-attached electric wire group, corresponding to the wire holder 56 of the second connector-attached electric wire group. In other words, in this electrical connecting device 20, a combination of one second mating connector group and one fixed portion 27d is provided for each second connector-attached electric wire group. Therefore, in this electrical connecting device 20, combinations of second mating connector groups and fixed portions 27d, which are provided to correspond to each connector in the second group of electric wires with connectors (here, a set of first bottom side connector 52A and second bottom side connector 52B) and electric wire holder 56, are arranged side by side for each group of electric wires with connectors.

[0062] Here, the combination of the second mating connector group and the fixed portion 27d for each second connector-attached electric wire group is arranged side by side in the mating connector arranging direction. The multiple fixed portions 27d are arranged side by side with the second mating connector group in a direction perpendicular to the mating connector arranging direction (i.e., the arrangement direction of a pair of the first mating bottom-side connector 27a and the second mating bottom-side connector 27b). Furthermore, the multiple fixed portions 27d are arranged on a wall surface that intersects with the mating connection direction of the first bottom-side connector 52A and the first mating bottom-side connector 27a in the electrical connecting device 20 (the mating connection direction of the second bottom-side connector 52B and the second mating bottom-side connector 27b). The multiple fixed portions 27d are provided on an insulating member (conductor holding member 27 or cover member 28). Here, each fixed portion 27d is provided on the conductor holding member 27.

[0063] In this wire harness WH, the wire holder 56 can be assembled to the fixed portion 27d for each second group of electric wires with connectors. For the second group of electric wires with connectors, the wire holder 56 is first assembled to the fixed portion 27d, and then the first bottom-side connector 52A and the second bottom-side connector 52B that exist before the wire holder 56 can be fitted and connected to the first mating bottom-side connector 27a and the second mating bottom-side connector 27b. Therefore, in this wire harness WH, the assembly of the second group of electric wires with connectors can be performed from the end in the order of the arrangement of the multiple fixed portions 27d. Therefore, in this wire harness WH, it is possible to aim at the second mating connector group arranged next to the wire holder 56 assembled to the fixed portion 27d for each second mating connector group, and to fit and connect the first bottom-side connector 52A and the second bottom-side connector 52B ahead of the wire holder 56 to a set of first mating bottom-side connector 27a and second mating bottom-side connector 27b of this second mating connector group. Therefore, this wire harness WH can prevent erroneous connection of the second connector-attached electric wire group to the electric connecting device 20, thereby improving the ease of assembly work.

[0064] Here, in the second connector-attached electric wire group, it is desirable to adjust the length of the second bottom-side electric wires Wb2 from the wire holder 56 to the second bottom-side connector 52B so that the second bottom-side connector 52B does not reach the position of the first mating bottom-side connector 27a, which is located away from the fixed portion 27d, out of the first mating bottom-side connector 27a and the second mating bottom-side connector 27b. This prevents erroneous connections, such as assembling the first bottom-side connector 52A to the second mating bottom-side connector 27b or assembling the second bottom-side connector 52B to the first mating bottom-side connector 27a, in the wire harness WH, thereby improving the ease of assembly work.

[0065] In addition, in the second group of electric wires with connectors, the housing portions of the first bottom side connector 52A and the second bottom side connector 52B may be formed in different shapes to prevent incorrect connections, such as assembling the first bottom side connector 52A to the second mating bottom side connector 27b or assembling the second bottom side connector 52B to the first mating bottom side connector 27a.

[0066] In this way, each second connector-equipped electric wire group is pre-assembled to the electric connecting device 20 before it is accommodated in the accommodation chamber 10a. Therefore, when the electric connecting device 20 is inserted into the accommodation chamber 10a through the access opening 10b, each second connector-equipped electric wire group is inserted into the accommodation chamber 10a together with the electric connecting device 20 from the access opening 10b. Furthermore, for example, before accommodating each second connector-equipped electric wire group in the accommodation chamber 10a, the terminal fittings 30 and the waterproof / dustproof member 40 are assembled to each second connector-equipped electric wire group. The terminal fittings 30 and the waterproof / dustproof member 40 are assembled to the housing 10 (here, the case body 10A) after accommodating each second connector-equipped electric wire group in the accommodation chamber 10a.

[0067] The terminal fittings 30 are earthing members for dissipating noise carried on the braids of the first bottom-side electric wire Wb1 and the second bottom-side electric wire Wb2 from the housing 10 to the vehicle body. Therefore, the terminal fittings 30 are made of a metal material and physically and electrically connect the braids of the first bottom-side electric wire Wb1 and the second bottom-side electric wire Wb2. The terminal fittings 30 are also physically and electrically connected to the housing 10. The terminal fittings 30 are provided for each second group of electric wires with connectors.

[0068] The terminal fitting 30 has two electrical connection portions 31 and a fixed portion 32 (FIGS. 5 and 6).

[0069] One electrical connection portion 31 is physically and electrically connected to the braid of the first bottom-side electric wire Wb1. The other electrical connection portion 31 is physically and electrically connected to the braid of the second bottom-side electric wire Wb2. Specifically, the electrical connection portion 31 is a tubular portion physically and electrically connected to the braid of the first bottom-side electric wire Wb1 (second bottom-side electric wire Wb2) from which the outer covering has been partially or entirely stripped and exposed. The electrical connection portion 31 shown here places the exposed braid inside a tube, and the inner wall of the tube is physically and electrically connected to the exposed braid. For example, the electrical connection portion 31 has a single-piece shape before being connected to the braid. The electrical connection portion 31 is wrapped around the exposed braid from the outside and crimped to physically and electrically connect the inner wall of the tubular body to the braid.

[0070] The fixed portion 32 is a portion for fixing the terminal fitting 30 to the housing 10 in the accommodation chamber 10a. The fixed portion 32 is formed as a flat plate-like piece, and has a circular through-hole 32a formed therein (FIGS. 5 and 6).

[0071] The terminal fitting 30 shown here is formed as a flag terminal (Figs. 5 and 6). A flag terminal is a terminal in which two electrical connection parts 31 are arranged in parallel with their cylindrical axes aligned in the same direction, and the fixed part 32 is arranged offset from the assembly of the two electrical connection parts 31.

[0072] The terminal fittings 30 are fixed to the housing 10 inside the accommodation chamber 10a. The terminal fittings 30 shown here are arranged in the accommodation chamber 10a near second electric wire insertion portions 16 (described later) of the case body 10A and fixed to the case body 10A. Furthermore, each terminal fitting 30 for each second group of electric wires with connectors is arranged in the accommodation chamber 10a near the second electric wire insertion portions 16 for each second group of electric wires with connectors and fixed to the case body 10A.

[0073] In the case body 10A, the outer peripheral wall 11 is cut out from the annular end face at one end on the access opening 10b side, and a wire insertion portion (hereinafter referred to as a "second wire insertion portion") 16 is formed through which a pair of first bottom-side electric wires Wb1 and second bottom-side electric wires Wb2 of the second connector-attached electric wire group is inserted between the inside and outside of the housing 10 (in other words, the pair of first bottom-side electric wires Wb1 and second bottom-side electric wires Wb2 is pulled from the outside of the housing 10 into the accommodation chamber 10a, or the pair of first bottom-side electric wires Wb1 and second bottom-side electric wires Wb2 is pulled from the accommodation chamber 10a to the outside of the housing 10) (FIG. 4). This second wire insertion portion 16 is provided for each second connector-attached electric wire group. The second wire insertion portion 16 shown here is formed in a shape in which the flange portion 11a is also cut out together with the outer peripheral wall 11. The end face of this second wire insertion portion 16 on the access opening 10b side is used as an insertion opening when inserting a set of first bottom-side electric wires Wb1 and second bottom-side electric wires Wb2 into this second wire insertion portion 16. This second wire insertion portion 16 forms an opening whose insertion opening is blocked by cover 10B when cover 10B is attached to case body 10A. Here, this opening serves as an opening connecting the inside and outside of housing 10 and is used as an inlet or outlet for a set of first bottom-side electric wires Wb1 and second bottom-side electric wires Wb2.

[0074] This second wire insertion portion 16 also functions as a protective member holding portion that holds the waterproof / dustproof member 40. Therefore, the waterproof / dustproof member 40 is inserted into this second wire insertion portion 16 together with a set of the first bottom-side electric wire Wb1 and the second bottom-side electric wire Wb2, and the waterproof / dustproof member 40 is assembled.

[0075] The waterproof and dustproof member 40 is a member that prevents liquid and dust from entering the accommodating chamber 10a from outside the housing 10 through the second wire insertion portion 16. For this reason, the waterproof and dustproof member 40 is an elastically deformable member molded from a rubber material. A waterproof and dustproof member 40 is provided for each second group of electric wires with connectors. Therefore, the waterproof and dustproof member 40 has a main part that is a tubular part through which a set of the first bottom-side electric wire Wb1 and the second bottom-side electric wire Wb2 of the second group of electric wires with connectors is inserted, and is held by being fitted into the second wire insertion portion 16, for example.

[0076] To secure the terminal fittings 30 near the waterproof and dustproof member 40, the case body 10A has a fixing portion 17 on the access opening 10b side of the accommodation chamber 10a, on which the fixed portion 32 of the terminal fitting 30 is placed and fixed (FIG. 4). A fixing portion 17 is provided for each terminal fitting 30. For example, a male screw member B3 such as a stud bolt is suspended from the fixing portion 17 shown here, and the fixed portion 32 is placed with the male screw member B3 inserted into the through hole 32a. The fixed portion 32 is screwed to the fixing portion 17 by a female screw member N3 that is threaded onto the male screw member B3 (FIGS. 3 and 4).

[0077] In the electrical junction box 1 and the wire harness WH, first, the wire holders 56 and the respective wires (here, a set of the first bottom-side electric wires Wb1 and the second bottom-side electric wires Wb2) in all of the second connector-equipped electric wire groups are assembled to the electrical connecting devices 20, and then the terminal fittings 30 and the waterproof and dustproof members 40 are assembled to the respective electric wires (here, a set of the first bottom-side electric wires Wb1 and the second bottom-side electric wires Wb2). Next, in the electrical junction box 1 and the wire harness WH, the electrical connecting devices 20 and the second connector-equipped electric wire group are inserted into the accommodation chamber 10a through the access opening 10b, and the electrical connecting devices 20 are assembled to the case body 10A. Then, in the electrical junction box 1 and the wire harness WH, the fixed portions 32 of the terminal fittings 30 are placed on the fixing portions 17 of the case body 10A, and the waterproof / dustproof member 40 is inserted into the second wire insertion portions 16 of the case body 10A, and the fixed portions 32 are screwed to the fixing portions 17. In the electrical junction box 1 and the wire harness WH, the first group of electric wires with connectors is inserted into the accommodation chamber 10a through the access opening 10b, and this first group of electric wires with connectors is assembled to the electric connecting device 20 in the accommodation chamber 10a and the case body 10A. Thereafter, in the electrical junction box 1 and the wire harness WH, the cover 10B is assembled to the case body 10A, and the access opening 10b is closed with this cover 10B. A female screw N4 is formed in the flange 11a of the case body 10A shown here, and the cover 10B is placed on it with the center of a through-hole (not shown) aligned with the screw axis of the female screw N4 (FIGS. 1 and 3). The cover 10B is fixed to the flange 11a by screwing a male screw member B4 inserted into the through-hole into the female screw N4 (FIGS. 1 and 3).

[0078] As described above, the wire harness WH of this embodiment can prevent erroneous connection between each of the second connector-equipped electric wire groups and the electric connecting device 20, thereby improving the workability of assembling them.

[0079] Furthermore, in this wire harness WH, each wire holder 56 can regulate the path of each electric wire (here, a set of first bottom-side electric wire Wb1 and second bottom-side electric wire Wb2) of the second connector-equipped electric wire group in the accommodation chamber 10a. Therefore, in this wire harness WH, it is possible to prevent the electric wires (first bottom-side electric wire Wb1, second bottom-side electric wire Wb2) of the multiple second connector-equipped electric wire groups from overlapping each other in the accommodation chamber 10a. Therefore, this wire harness WH can improve the spatial efficiency of the accommodation chamber 10a, and therefore, for example, the housing 10 can be made more compact.

[0080] Furthermore, in this wire harness WH, overlapping of the electric wires (first bottom-side electric wires Wb1, second bottom-side electric wires Wb2) in the plurality of second connector-equipped electric wire groups is prevented, thereby reducing noise interference between the electric wires. In this wire harness WH, the second connector-equipped electric wire group includes either the positive or negative first bottom-side electric wire Wb1 and the positive or negative second bottom-side electric wire Wb2 in the same circuit, and the first bottom-side electric wire Wb1 and the second bottom-side electric wire Wb2 are bundled together by the electric wire holder 56. Therefore, in the second connector-equipped electric wire group, noise from the first bottom-side electric wire Wb1 and the second bottom-side electric wire Wb2 can be canceled out. In this way, this wire harness WH can enhance the noise reduction effect by bundling each electric wire (first bottom-side electric wire Wb1, second bottom-side electric wire Wb2) for each second connector-equipped electric wire group with the electric wire holder 56 and then regulating the path. [Explanation of symbols]

[0081] 1 Electrical junction box 10. Cabinet 10a Containment Cell 20 Electrical connectors 25b 1st bottom side terminal part (1st terminal part) 26c 2nd bottom side terminal part (2nd terminal part) 27 Conductor holding member (insulating member) 27a First mating bottom connector (first mating connector) 27b Second mating bottom connector (second mating connector) 27d Fixed part 28 Cover material (insulating material) 52A 1st bottom connector (1st connector) 52B Second bottom connector (second connector) 56 Wire holder Wb1 1st bottom side electric wire (1st electric wire) Wb2 2nd bottom side wire (2nd wire) WH Wire Harness

Claims

1. The electrical connection box includes a plurality of groups of connectorized electric wires, each group including a plurality of connectorized electric wires with connectors connected to ends of the electric wires, and a mating connector for each of the connectors to be fitted and connected to each of the plurality of groups of connectorized electric wires, The electrical connection box comprises: a housing having a receiving chamber formed therein into which the plurality of groups of connector-attached electric wires are drawn from the outside; an electric connecting device accommodated in the accommodation chamber and including, for each group of connector-attached electric wires, a mating connector group that is a combination of the mating connectors provided for each of the connectors of the group of connector-attached electric wires; Equipped with The group of electric wires with connectors includes an electric wire holder that bundles the respective electric wires together and fixes them to the fixed portion of the electric connecting device, The electrical connecting device is a wire harness characterized in that the combinations of the mating connector group and the fixed portion, which are provided to correspond to each of the connectors and the wire holders in the group of connector-equipped electric wires, are arranged side by side for each group of connector-equipped electric wires.

2. The mating connectors are arranged so that the mating connection directions of the connectors are all the same, 2. The wire harness according to claim 1, wherein the plurality of fixed portions are arranged on a wall surface of the electrical connecting device that intersects with the direction of fitting and connection.

3. 3. The wire harness according to claim 1, wherein the group of electric wires with connectors includes either one of the positive and negative electric wires and the other of the positive and negative electric wires in the same circuit.

4. the group of connectorized electric wires includes the electric wires and the connectors in two of the connectorized electric wires, and includes a first electric wire and a first connector in one of the connectorized electric wires and a second electric wire and a second connector in the other of the connectorized electric wires, the mating connector group includes two mating connectors, a first mating connector into which the first connector is mated and connected, and a second mating connector into which the second connector is mated and connected, The first mating connectors and the second mating connectors in the plurality of mating connector groups are arranged side by side in the same arrangement direction, 4. A wire harness as described in claim 1, 2 or 3, characterized in that a pair of the first mating connector and the second mating connector in each mating connector group are arranged side by side in a direction perpendicular to the arrangement direction for each mating connector group.

5. the first mating connector includes a first terminal portion to which the first electric wire is electrically connected via the first connector, the second mating connector includes a second terminal portion to which the second electric wire is electrically connected via the second connector, the electrical connecting device includes an electrically insulating member that holds the first terminal portion of the first mating connector in a state where it can be mated and connected to the first connector, and that holds the second terminal portion of the second mating connector in a state where it can be mated and connected to the second connector; The wire harness according to claim 4 , wherein the plurality of fixed portions are provided on the insulating member.

Images