Connector connecting structure

Abstract

To provide a connector connection structure in which connectors are fitted to each other and inclination can be prevented in a fitting state where the connectors are fixed by a fixing bolt.SOLUTION: In the connector connection structure 1, the harness-side terminal 21 and the apparatus-side terminal 11 are disposed inside, the water stop region Pw where water is stopped from the outside is formed, and the connector connection structure 1 is disposed in the water stop region Pw. The fixing mechanism 30 for fixing the connected state of the harness-side connector 20 and the device-side connector 10 is provided, the fixing mechanism 30 includes the fixing bolt 31 provided on the housing shell 23 and extending in the depth direction D and the fixing projection 163 provided on the male housing 12 and to be fastened by the fixing bolt 31, and the harness-side connector 20 is provided with the collar member 32 for transmitting the fastening force of the fixing bolt 31 to the device-side connector 10 and the O-ring 33 for waterproofing between the collar member 32 and the harness-side connector 20.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a connector connection structure that is attached to a housing that houses electrical equipment such as a motor or a power supply device such as a battery, and is connected to an electrical circuit that is connected to the electrical equipment. [Background technology]

[0002] Electrical equipment installed in automobiles and other vehicles is connected to other electrical equipment, such as other electrical equipment or power supplies, via wire harnesses, which are bundles of insulated electric wires. In this case, the wire harnesses and the electrical equipment are connected to each other using connectors attached to each of them. For example, a connector on the harness side as shown in Patent Document 1 is connected to a connector on the device side provided on a device such as a motor.

[0003] Specifically, by fitting the harness-side connector into the equipment-side connector provided on a device such as a motor, the connection terminal on the harness-side connector is connected to the connection terminal on the equipment-side connector, thereby connecting the harness-side connector and the equipment-side connector in a conductive manner.

[0004] When the harness-side connector and the device-side connector are mated, a waterproof area is formed in which the connection terminals provided on the harness-side connector and the connection terminals provided on the device-side connector are arranged. Furthermore, the mated harness-side connector and device-side connector can be fixed with a fixing bolt positioned outside the waterproof area, thereby realizing a secure connection between the connection terminals.

[0005] However, the fixing bolt secures the connectors to each other outside the waterproof area where the connection terminals are located. In other words, the axis that applies the mating force to connect the connection terminals to each other and the axis that applies the fastening force to secure the connectors by the fixing bolt are misaligned. This raises the risk of the connectors tilting when mated. [Prior art documents] [Patent documents]

[0006] [Patent Document 1] Japanese Patent Application Laid-Open No. 2024-39475 Summary of the Invention [Problem to be solved by the invention]

[0007] An object of the present invention is to provide a connector connection structure that can prevent tilting when connectors are mated with each other and secured with a fixing bolt. [Means for solving the problem]

[0008] The present invention relates to a connector connection structure in which a first connector and a second connector are mated to connect two or more connection terminals provided on each connector, wherein the first connector is provided with two or more electric wires each having a first connection terminal attached to its tip, and a housing in which the first connection terminals are arranged, and the second connector is provided with at least two second connection terminals and a connector housing in which at least a portion of the second connection terminals are arranged, and when the first connector and the second connector are mated and the first connection terminals and the second connection terminals are connected, the first connection terminals and the second connection terminals are arranged inside the connector housing. a waterproof area that is waterproofed from the outside is formed, and a fixing mechanism is provided in the waterproof area to fix the mated state of the first connector and the second connector, and the fixing mechanism is provided in the housing and includes a fixing bolt that extends in the mating direction of the first connector and the second connector, and a bolt hole portion that is provided in the connector housing and into which the fixing bolt is fastened, and the first connector is provided with a collar member that fits over the fixing bolt and transmits the fastening force of the fixing bolt to the second connector, and a waterproof portion that seals water between the collar member and the first connector. The water-stopping portion includes a ring-shaped seal member fitted onto the outside of the collar member, a rubber plug, or potting made of a curable resin having water-stopping properties.

[0009] According to this invention, the connectors can be fitted together and prevented from tilting in the fitted state in which they are fixed with the fixing bolts. In more detail, a connector connection structure connecting a first connector having two or more electric wires with first connection terminals attached to their tips and a housing in which the first connection terminals are arranged, and a second connector having at least two second connection terminals and a connector housing in which at least a portion of the second connection terminals are arranged, when the first connector and the second connector are fitted together and the first connection terminals and the second connection terminals are connected, arranges the first connection terminals and the second connection terminals internally and forms a waterproof area that is sealed from the outside.

[0010] In addition, a fixing mechanism for fixing the mated state between the first connector and the second connector is arranged in the watertight area, and the fixing mechanism is provided in the housing and includes a fixing bolt extending in the mating direction between the first connector and the second connector, and a bolt hole portion provided in the connector housing into which the fixing bolt is fastened.

[0011] This eliminates or reduces axial misalignment between the axis that applies the mating force to connect the connection terminals when the connectors are mated and the axis that applies the fastening force to secure the connectors with the fixing bolts, thereby preventing the connectors from tilting when mated and secured with the fixing bolts.

[0012] Furthermore, since the first connector is provided with a collar member that fits over the fixing bolt and transmits the fastening force of the fixing bolt to the second connector, the fastening force of the fixing bolt does not act directly on the housing provided in the first connector, so the mated state can be more reliably fixed. Furthermore, the amount of fastening of the fixing bolt can be adjusted by changing the length of the collar member.

[0013] The fixing mechanism, which includes a fixing bolt and a bolt hole to which the fixing bolt is fastened, is disposed in the watertight region, and therefore there is a risk that the fixing mechanism may reduce the watertightness of the watertight region.

[0014] In response to this, a waterproof section is provided that fits over the fixing bolt and seals off the water between the first connector and a collar member that transmits the fastening force of the fixing bolt to the second connector, thereby preventing a decrease in waterproofing due to the placement of a fixing mechanism in the waterproof area and ensuring waterproofing.

[0015] In one aspect of the present invention, the housing may be provided with an insertion hole through which the fixing bolt and the collar member are inserted, and the water-stopping portion may be a ring-shaped sealing member arranged between the outer periphery of the collar member inserted into the insertion hole, the bottom surface of the bolt head of the fixing bolt, and the housing. The ring-shaped sealing member includes an O-ring or a ring-shaped packing material having appropriate elasticity.

[0016] With this invention, the water ingress path that occurs between the bottom surface of the bolt head of the fixing bolt inserted into the insertion hole, the outer periphery of the collar member inserted into the insertion hole, and the peripheral edge of the insertion hole in the housing can be sealed with a sealing member, thereby improving water sealing performance.

[0017] As another aspect of the present invention, a ring-shaped groove that is recessed more than other portions may be provided on the periphery of the insertion hole in the housing, and the seal member may be disposed in the groove. According to this invention, when a seal member is disposed on the periphery of the insertion hole, the housing is fixed by the fastening bolt via the seal member, but because the seal member is disposed in a groove provided on the periphery of the insertion hole, the housing can be fixed by being restricted by the bolt head while ensuring watertightness by the seal member, thereby making the connection between the connectors more stable.

[0018] As another aspect of the present invention, a retaining member may be provided to prevent the collar member fitted onto the fixing bolt from coming off. The anti-slip material may prevent the collar member from coming out of the housing together with the fixing bolt, may prevent only the collar member from coming out of the housing, or may prevent the collar member from coming out relative to the fixing bolt.

[0019] According to this invention, the workability of connecting the connectors can be improved. More specifically, the fixing bolt is attached to the housing in advance, and the collar member is fitted onto the fixing bolt in advance, which improves the workability of connecting the connectors compared to fitting the connectors together while attaching the fixing bolt and the collar member.

[0020] Furthermore, there is a risk that the collar member may accidentally come off the pre-attached fixing bolt, or that the fixing bolt itself, onto which the collar member is fitted, may fall off from the housing. In response to this, the retaining member can prevent the collar member from accidentally coming off the fixing bolt. Furthermore, the retaining member that prevents the collar member from accidentally coming off the fixing bolt indirectly prevents the fixing bolt itself, onto which the collar member is fitted, from falling off from the housing.

[0021] In another aspect of the present invention, the collar member may be a tubular body made of metal. This invention allows the fastening force of the fixing bolt attached to the first connector to be reliably transmitted to the second connector without loss, thereby preventing problems such as deformation of the housing of the first connector due to the fastening force of the fixing bolt, and thus preventing a decrease in the waterproofing properties of the waterproof area due to deformation of the housing due to the fastening force of the fixing bolt.

[0022] In another aspect of the present invention, the two first connection terminals and the two second connection terminals may be arranged at a predetermined distance in a transverse direction that intersects with the fitting direction, and the fixing mechanism may be arranged between the two connected first connection terminals and the two connected second connection terminals in the connected state in which the two first connection terminals and the two second connection terminals are connected.

[0023] This invention makes it possible to eliminate axial misalignment between the axis that applies the mating force to fit the connectors together and connect the connection terminals together, and the axis that applies the fastening force to fix them with the fixing bolt, thereby more reliably preventing tilting when the connectors are fitted together and fixed with the fixing bolt.

[0024] In another aspect of the present invention, the electric wire may extend in the fitting direction. With this invention, even if the electric wire is a connector-attached electric wire extending from the housing in the mating direction, it is possible to eliminate or reduce the axial misalignment between the axis that applies the mating force to fit the connectors together and connect the connection terminals together, and the axis that applies the fastening force to fix with the fixing bolt, without reducing the watertightness of the watertight area, and it is possible to more reliably prevent tilting in the mated state fixed with the fixing bolt.

[0025] As another aspect of the present invention, a direction intersecting the fitting direction and the intersecting direction may be defined as a second intersecting direction, and the electric wires may extend in the second intersecting direction. According to this invention, even if the electric wire is a connector-attached electric wire extending from the housing in the second intersecting direction, it is possible to eliminate or reduce the axial misalignment between the axis that applies the mating force to fit the connectors together and connect the connection terminals together, and the axis that applies the fastening force to fix the connectors with the fixing bolt, without reducing the waterproofing properties of the waterproof area, and it is possible to more reliably prevent tilting when the connectors are fitted together and fixed with the fixing bolt. [Effects of the Invention]

[0026] According to the present invention, it is possible to provide a connector connection structure that can prevent the connectors from tilting when they are fitted together and fixed with a fixing bolt. [Brief explanation of the drawings]

[0027] [Figure 1] FIG. [Figure 2] FIG. 10 is a perspective view of the connector connection structure in a separated state. [Figure 3] FIG. 10 is a perspective view of the connector connection structure in a separated state. [Figure 4] FIG. [Figure 5] FIG. [Figure 6] FIG. [Figure 7] FIG. [Figure 8] 3A and 3B are explanatory diagrams of a device-side connector and a harness-side connector. [Figure 9] FIG. 10 is an explanatory diagram of the connector connection structure in a separated state. [Figure 10] FIG. [Figure 11] FIG. 10( a ) is an explanatory diagram showing an enlarged view of part a in FIG. [Figure 12] FIG. 6 is an explanatory diagram of a connector connection structure according to a second embodiment. [Figure 13] FIG. 10 is a perspective view of a connector connection structure in a separated state according to a second embodiment. [Figure 14]FIG. 10 is a perspective view of a connector connection structure in a separated state according to a second embodiment. [Figure 15] FIG. 6 is an explanatory diagram of a connector connection structure according to a second embodiment. [Figure 16] Enlarged view of part b in Figure 15(a). DETAILED DESCRIPTION OF THE INVENTION

[0028] An embodiment of the present invention will be described in detail below with reference to the drawings. 1 is an explanatory diagram of the connector connection structure 1, and Fig. 2 and Fig. 3 are perspective views of the connector connection structure 1 in a separated state. More specifically, Fig. 1(a) shows a perspective view of the connector connection structure 1 as seen from the front, left side and top, and Fig. 1(b) shows a perspective view of the connector connection structure 1 as seen from the front, left side and bottom.

[0029] 1(a), the vertical direction is defined as the height direction H, the direction connecting the lower left and upper right is defined as the width direction W, and the direction connecting the lower right and upper left is defined as the depth direction D. Furthermore, the upper side in the vertical height direction H is defined as the upper side Hu, and the lower side is defined as the lower side Hd. Furthermore, the upper left side in the depth direction D connecting the lower right and upper left is defined as the back side Db, and the lower right side is defined as the front side Df. The same applies to FIGS. 2 to 11 below.

[0030] For the sake of convenience in describing the configuration of the connector connection structure 1, the direction in which the device-side connector 10 and the harness-side connector 20 are attached and detached is defined as the depth direction D. The direction in which the harness-side connector 20 is attached to the device-side connector 10 is defined as the depth side Db, and the direction in which the harness-side connector 20 is detached from the device-side connector 10 is defined as the front side Df. Furthermore, directions perpendicular to the depth direction D are defined as the width direction W and the height direction H. However, these directions are not specified with respect to the configurations of the device-side connector 10, the harness-side connector 20, and the connector connection structure 1.

[0031] FIG. 2 shows a perspective view of the connector connection structure 1 in the separated state as seen from the back, left side and top, and FIG. 3 shows a perspective view of the connector connection structure 1 in the separated state as seen from the front, right side and bottom.

[0032] Figure 4 shows an exploded oblique view of the device-side connector 10 as viewed from the front, left side, and top, Figure 5 shows an exploded oblique view of the device-side connector 10 as viewed from the front, right side, and bottom, Figure 6 shows an exploded oblique view of the harness-side connector 20 as viewed from the front, left side, and top, and Figure 7 shows an exploded oblique view of the harness-side connector 20 as viewed from the front, right side, and top.

[0033] Figure 8 shows an explanatory diagram of the equipment side connector 10 and the harness side connector 20, Figure 9 shows an explanatory diagram of the connector connection structure 1 in a separated state, Figure 10 shows an explanatory diagram of the connector connection structure 1, and Figure 11 shows an explanatory diagram of an enlarged view of part a in Figure 10(a). More specifically, FIG. 8(a) shows a front view of the device-side connector 10, and FIG. 8(b) shows a rear view of the harness-side connector 20. As shown in FIG.

[0034] Fig. 9(a) shows a cross-sectional view of the connector connection structure 1 in the separated state at the center position in the width direction W, and Fig. 9(b) shows a cross-sectional view of the connector connection structure 1 in the separated state in Fig. 2 at the center position in the height direction H. Fig. 10(a) shows a cross-sectional view of the connector connection structure 1 in the width direction W, and Fig. 10(b) shows a cross-sectional view of the connector connection structure 1 in the center position in the height direction H. Fig. 11(a) shows an enlarged view of part a in Fig. 10(a) when the fixing mechanism 30 is not provided.

[0035] The connector connection structure 1 of the present invention is configured to fit a harness side connector 20 and an equipment side connector 10 together to connect two connection terminals 11, 21 provided on each connector, and the harness side connector 20 is provided with two or more high-voltage wires 201 each having a harness side terminal 21 attached to its tip, and a housing shell 23 in which the harness side terminals 21 are arranged, and the equipment side connector 10 is provided with at least two equipment side terminals 11 and a male housing 12 in which at least a portion of the equipment side terminals 11 are arranged.

[0036] When the harness side terminals 21 and the equipment side terminals 11 are connected and the harness side connector 20 and the equipment side connector 10 are mated, the harness side terminals 21 and the equipment side terminals 11 are arranged inside, forming a watertight area Pw that is watertight from the outside, and a fixing mechanism 30 is provided that is arranged in the watertight area Pw and fixes the mated state between the harness side connector 20 and the equipment side connector 10.

[0037] The fixing mechanism 30 is provided in the housing shell 23 and includes a fixing bolt 31 extending in the depth direction D between the harness side connector 20 and the equipment side connector 10, and a fixing protrusion 163 provided in the male housing 12 to which the fixing bolt 31 is fastened.

[0038] In addition, the harness side connector 20 is provided with a collar member 32 that fits over the fixing bolt 31 and transmits the fastening force of the fixing bolt 31 to the equipment side connector 10, and an O-ring 33 that seals the gap between the collar member 32 and the harness side connector 20.

[0039] The connector connection structure 1, the device-side connector 10, and the harness-side connector 20 will be described in detail below. As shown in FIG. 1, the connector connection structure 1 is a connection structure that connects an equipment-side connector 10 to which an electrical circuit connected to electrical equipment such as a motor or power supply equipment mounted on an automobile or the like is connected, and a harness-side connector 20 attached to a wire harness 200 bundling high-voltage wires 201, and fixes the connection state with a fixing bolt 31, thereby establishing an electrically and physically stable connection state.

[0040] First, as shown in FIGS. 3 to 5, a device-side connector 10 that is attached to a device housing 40 that accommodates an electrical device will be described. As shown in FIGS. 4 and 5, the device-side connector 10 includes a device-side terminal 11, a male housing 12, a device-side seal 13, a fixing bolt 14, and a mounting base 16.

[0041] The equipment side terminal 11 is connected to an electrical circuit (not shown) connected to an electrical device arranged inside the equipment housing 40, and is also connected to a harness side terminal 21 arranged inside the harness side connector 20 described later, and two of them are provided, spaced a predetermined distance apart in the width direction W. Of the two device-side terminals 11, the device-side terminal 11 on one side in the width direction W is referred to as one-side device-side terminal 11a, and the device-side terminal 11 on the other side in the width direction W is referred to as the other-side device-side terminal 11b.

[0042] The device side terminals 11 (11a, 11b) are made of metal plate material, and the terminal connection portions 111 (111a, 111b), terminal insertion portions 112 (112a, 112b) and circuit connection portions 113 (113a, 113b) are arranged in this order from the front side Df to the back side Db in the depth direction D.

[0043] The terminal connection portions 111 (111a, 111b) are portions that connect the harness side connector 20 and the device side connector 10 together, thereby connecting to the harness side terminals 21. The terminal insertion portion 112 (112a, 112b) is a portion that connects the terminal connection portion 111 (111a, 111b) and the circuit connection portion 113 (113a, 113b), and the circuit connection portion 113 (113a, 113b) is a portion that is connected to an electric circuit (not shown) that is connected to an electric device arranged inside the device housing 40, and has a through hole 114 for bolting to the electric circuit.

[0044] The terminal connection portion 111 (111a, 111b), the terminal insertion portion 112 (112a, 112b), and the circuit connection portion 113 (113a, 113b) are formed continuously in the depth direction D, and the main surface of the plate material is formed so as to align with the plane of the height direction H and the depth direction D.

[0045] The terminal connection portion 111 connected to the harness side terminal 21 is arranged inside the hood portion 122 of the male housing 12 described later, and the terminal insertion portion 112 continuous with the terminal connection portion 111 penetrates the main body portion 121 and the insertion tube portion 123 of the male housing 12 described later, and is formed to a length that protrudes beyond the insertion tube portion 123 toward the rear side Db.

[0046] The one-side circuit connection portion 113a of the one-side device terminal 11a is formed longer than the other-side circuit connection portion 113b of the other-side device terminal 11b, so that the one-side device terminal 11a is formed longer than the other-side device terminal 11b.

[0047] The male housing 12 is for holding the equipment side terminal 11 on the mounting base 16, and is provided with a main body portion 121 that holds the equipment side terminal 11, a hood portion 122 that surrounds the equipment side terminal 11 held by the main body portion 121, a cylindrical insertion tube portion 123 that is inserted into a recess 161 of the mounting base 16, a fixing convex portion 124 that fixes the male housing 12 to the mounting base 16 with a fixing bolt 14, and a holding frame portion 125 that protrudes forward Df from the main body portion 121 inside the hood portion 122 and holds the terminal connection portion 111 of the equipment side terminal 11 along the periphery.

[0048] The main body portion 121 is configured to hold parts of the terminal insertion portions 112 of the device-side terminals 11 arranged at predetermined intervals in the width direction W in an insulated state. The hood portion 122 is opened on the front side Df and is formed in the shape of an angular peripheral wall when viewed from the front that protrudes toward the front side Df.

[0049] The insertion tube portion 123 is disposed on the rear side Db of the main body portion 121, and is configured to insert and hold a part of the terminal insertion portion 112 of the device-side terminal 11 together with the main body portion 121. The insertion tube portion 123 is formed in a horizontally elongated, generally rectangular shape with a diameter slightly smaller than that of a recess 161 so that it can be inserted into the recess 161 of the mounting base 16, which will be described later.

[0050] The fixing protrusion 124 protrudes to one side (the right side in this embodiment) in the width direction W of the main body portion 121, and has a mounting hole for mounting the fixing bolt 14 that fixes the male housing 12 to the mounting base 16.

[0051] The holding frame portion 125 protrudes toward the front side Df from the main body portion 121 inside the hood portion 122, and is configured to surround and hold the periphery of the terminal connection portion 111 of the device side terminal 11 inserted through the main body portion 121, and is formed in a frame shape that follows the periphery of the terminal connection portion 111.

[0052] The device side seal 13 is a sealing member made of rubber and has a square frame shape, and is attached to the insertion tube portion 123 of the male housing 12 described later, to seal the gap between the insertion tube portion 123 of the male housing 12 and the inner peripheral edge of the recess 161 of the mounting base 16 described later.

[0053] The mounting base 16 is attached to the equipment housing 40 and is a base for fixing the male housing 12 and harness side connector 20 described later. When viewed from the front, it has a horizontally elongated rectangular shape that is longer in the width direction W than in the height direction H, with a recess 161 in the center that is concave toward the back side Db, and has a predetermined thickness in the depth direction D.

[0054] In addition, on both sides of the width direction W of the bottom of the recess 161, there are provided insertion holes 162 through which the device side terminals 11 are inserted, and between the insertion holes 162 there are provided cylindrical fixing protrusions 163 that protrude toward the front side Df, and at the top of the fixing protrusions 163 there are provided threaded holes 164 into which fixing bolts 31 for fastening and fixing the harness side connector 20 are threaded. On one side of the recess 161 in the width direction W, two screw holes 165 for fixing the male housing 12 (described later) with fixing bolts 14 are provided at a predetermined interval in the height direction H.

[0055] The mounting base 16 configured in this manner is made of metal so that it is electrically connected to a harness-side connector 20 (described later) when attached, and exhibits an electromagnetic shielding function. The mounting base 16 thus configured is attached by an appropriate method to a device housing in which an electric device is placed.

[0056] In the device-side connector 10 having the elements configured in this manner, when the device-side terminal 11 is inserted into the insertion hole 162, the terminal connection portion 111 protrudes from the insertion hole 162 to the front side Df, and the circuit connection portion 113 protrudes from the insertion hole 162 to the back side Db. An electric circuit (not shown) is then connected to the circuit connection portion 113 of the device-side terminal 11 inserted into the insertion hole 162 of the mounting base 16.

[0057] Furthermore, after the device-side seal 13 is attached to the insertion tube portion 123 of the male housing 12, the insertion tube portion 123 of the male housing 12 is inserted into the recess 161 of the mounting base 16 from the front side Df. At this time, the terminal connection portion 111 of the device-side terminal 11 attached to the insertion hole 162 is positioned in the holding frame portion 125 of the main body portion 121. Furthermore, the device-side seal 13 seals the gap between the insertion tube portion 123 and the recess 161 of the mounting base 16.

[0058] Furthermore, since the mounting hole of the fixing protrusion 124 of the male housing 12, whose insertion tube portion 123 is inserted into the recess 161, communicates with the screw-engagement hole 165 of the mounting base 16 in the depth direction D, by tightening the fixing bolt 14, the male housing 12 is fixed to the mounting base 16, and the assembly of the device-side connector 10 is completed. At this time, inside the hood portion 122, a fixing convex portion 163 having a screw hole 164 is arranged between the holding frame portions 125, as shown in the front view of the device-side connector 10 in FIG. 8(a).

[0059] Next, the harness-side connector 20 that mates with the device-side connector 10 to form the connector connection structure 1 will be described with reference to FIGS. 6, 7, and 8(b). The harness-side connector 20 is a connector that mates with the above-mentioned device-side connector 10 to form the connector connection structure 1, and connects the device-side terminals 11 of the device-side connector 10 to the harness-side terminals 21 arranged inside.

[0060] The harness side connector 20 includes a wire harness 200 whose longitudinal direction is along the depth direction D, a harness side terminal 21 attached to the tip of a high-voltage wire 201 that constitutes the wire harness 200, a housing shell 23, a housing seal 24, a housing seal cover 25, a wire seal 26, a seal cover 27, and a fixing mechanism 30.

[0061] The harness-side terminal 21 is a high-voltage terminal attached to the wire conductor 202 exposed from the tip of the insulating coating 203 of the high-voltage wire 201, which has the wire conductor 202 covered with the insulating coating 203. In the case of a wire harness 200 made up of two high-voltage wires 201, a harness-side terminal 21 is attached to each high-voltage wire 201, and the harness-side connector 20 is provided with two harness-side terminals 21. In addition, the wire conductor 202 of the high-voltage wire 201 constituting the wire harness 200 is covered with a braided wire 204, and the braided wire 204 is folded back and exposed at the tip of the insulating coating 203.

[0062] The housing shell 23 includes a housing main body 231 on the rear side Db and a harness insertion portion 232 extending from the housing main body 231 to the front side Df. The housing body 231 is a substantially rectangular parallelepiped that is longer in the width direction W than in the height direction H and has an opening at the rear side Db of a substantially rectangular shape when viewed from the front. The harness terminals 21 are arranged in the width direction W at predetermined intervals.

[0063] The housing main body 231 is similar in shape to but slightly larger than the hood portion 122 of the male housing 12 of the device-side connector 10 described above, and has double walls 231a, 231b that form an insertion groove 2311 between them into which the hood portion 122 is inserted, as shown in Figure 8(b).

[0064] In addition, at the center of the width direction W of the housing main body 231, there is provided an attachment portion 2312 having an attachment hole 2313 for attaching a collar member 32 of the fixing mechanism 30 described later, and at the edge Df of the front side of the attachment hole 2313, there is provided an attachment groove 2314 for attaching an O-ring 33 of the fixing mechanism 30.

[0065] The mounting portion 2312 is substantially cylindrical and has a mounting hole 2313 in the center when viewed from the front, and a mounting groove 2314 on the front side Df of the mounting hole 2313. The mounting hole 2313 in the mounting portion 2312 is a cylindrical space into which a collar member 32 (described later) can be inserted. The mounting groove 2314 is provided along the edge of the front side Df of the mounting hole 2313 in the mounting portion 2312, and is a ring-shaped groove that can accommodate an O-ring 33 (described later), and its outer diameter is smaller than the outer diameter of a bolt head 311 of a fixing bolt 31 (described later).

[0066] Since the mounting portion 2312 is positioned at the center of the width direction W of the housing main body 231, it is positioned between two harness side terminals 21 that are positioned at a predetermined distance in the width direction W inside the housing main body 231.

[0067] The harness insertion portion 232 has a rectangular tubular shape that protrudes toward the front side Df from the rectangular housing main body 231 that is long in the width direction W, and the high-voltage wire 201 is inserted through the harness insertion portion 232, and a part of the front side Df of the harness-side terminal 21 provided at the tip of the high-voltage wire 201 is disposed in the harness insertion portion 232. The harness insertion portions 232 are disposed at a predetermined interval in the width direction W corresponding to the two high-voltage wires 201.

[0068] The housing seal 24 is a sealing member attached near the tip of the front side Df of the inner wall 231b of the double wall that constitutes the housing body 231 of the housing shell 23, and is formed in the shape of a square frame that is slightly smaller than the insertion groove 2311.

[0069] The housing seal cover 25 is disposed on the inner side Db of the housing seal 24 disposed on the inner wall 231b of the double wall that constitutes the housing body 231, and is a cover for preventing the housing seal 24 from accidentally coming off.

[0070] The wire seal 26 has an insertion hole 261 through which the high-voltage wire 201 is inserted, and is a sealing member that seals the gap between the high-voltage wire 201 inserted into the harness insertion portion 232 and the inner surface of the harness insertion portion 232. For this reason, the wire seal 26 is formed in a substantially rectangular shape that can be placed inside the harness insertion portion 232. Two wire seals 26 are provided corresponding to the two high-voltage wires 201.

[0071] The seal cover 27 is fitted onto the end of the front side Df of the harness insertion portion 232 to prevent the insertion hole 261 from accidentally slipping out and to block the end opening of the rear side Db of the harness insertion portion 232 through which the high-voltage wire 201 is inserted, and is formed in an approximately rectangular shape that can be fitted onto the end of the harness insertion portion 232.

[0072] The fixing mechanism 30 fixes the connection state of the harness side connector 20 mated with the equipment side connector 10, and includes a fixing bolt 31, a collar member 32 fitted onto the fixing bolt 31, an O-ring 33 fitted onto the collar member 32, and an E-ring 34 that prevents the fixing bolt 31 and collar member 32 attached to the housing shell 23 from accidentally coming loose.

[0073] The fixing bolt 31 has a bolt head 311 and a bolt shank 312 that can be threaded into the threaded hole 164 of the fixing protrusion 163 in the mounting base 16, and the bolt shank 312 is formed to have a length approximately equal to the length of the mounting portion 2312 in the depth direction D.

[0074] In addition, an expanded diameter flange is provided on the bolt shank 312 side of the bolt head 311. Furthermore, on the tip side of the bolt shank 312 of the fixing bolt 31, an expanded diameter portion 313 is provided which restricts movement of the E-ring 34 (described later) toward the tip side and has a thread formed thereon to screw into the screw hole 164.

[0075] The collar member 32 is a metal cylindrical body that fits onto the bolt shank 312 of the fixing bolt 31, and is formed to a length approximately equal to the length up to the expanded diameter portion 313 on the bolt shank 312, that is, a length approximately equal to the length in the depth direction D of the mounting portion 2312 having the mounting hole 2313. The O-ring 33 is a ring body made of rubber that can be fitted onto the collar member 32, which is a metallic cylindrical body that fits onto the bolt shank 312 of the fixing bolt 31.

[0076] The E-ring 34 is approximately circular and has an outer diameter larger than that of the mounting hole 2313 of the mounting portion 2312. It is fitted into the bolt shaft portion 312 of the fixing bolt 31 on the front side Df of the enlarged diameter portion 313, and movement of the front side Df is restricted by the enlarged diameter portion 313.

[0077] In the harness-side connector 20 having the elements configured as described above, the harness-side terminal 21 is attached to the electric wire conductor 202 protruding from the tip of the insulating coating 203 of the high-voltage electric wire 201 .

[0078] Then, the high-voltage wire 201 with the harness-side terminal 21 attached to the tip thereof is inserted through the harness insertion portion 232 of the housing shell 23 , and the harness-side terminal 21 is disposed inside the housing body 231 of the housing shell 23 .

[0079] Furthermore, the housing seal 24 and the housing seal cover 25 are attached to the tip of the double wall 231 a of the housing body 231 of the housing shell 23 . Further, the wire seal 26 previously attached to the high-voltage electric wire 201 is placed inside the harness insertion portion 232, and the end portion on the inner side Db of the harness insertion portion 232 is closed with the seal cover 27.

[0080] In the fixing mechanism 30 configured as described above, the fixing bolt 31 having the collar member 32 fitted onto the bolt shank 312 is inserted into the mounting hole 2313 of the mounting portion 2312 provided in the housing main body 231 of the housing shell 23. At this time, an O-ring 33 is fitted onto the end of the collar member 32 on the front side Df fitted onto the bolt shank 312.

[0081] Therefore, the collar member 32 is inserted into the mounting hole 2313, and the bolt shank 312 is inserted therethrough. The enlarged diameter portion 313 of the fixing bolt 31 protrudes toward the rear side Db beyond the mounting portion 2312. Furthermore, the O-ring 33 fitted onto the end of the collar member 32 on the rear side Db is disposed in the mounting groove 2314.

[0082] Then, the bolt shank 312 is inserted into the mounting hole 2313 of the mounting portion 2312 together with the collar member 32 and protrudes from the mounting portion 2312 to the rear side Db, and an E-ring 34 is mounted on the front side Df of the enlarged diameter portion 313.

[0083] As a result, the fixing bolt 31, whose bolt shank 312 is inserted into the mounting portion 2312 together with the collar member 32, has an E-ring 34 attached to the bolt shank 312, whose outer diameter is larger than that of the mounting portion 2312, so that the fixing bolt 31, the collar member 32, and even the O-ring 33 fitted onto the end of the rear side Db of the collar member 32 and placed in the mounting groove 2314 can be prevented from accidentally coming off the housing shell 23. In this way, the assembly of the harness side connector 20 is completed.

[0084] As described above, the connector connection structure 1 can be constructed by fitting and connecting the device-side connector 10 and the harness-side connector 20, which are constructed by assembling the respective elements. The assembly of the connector connection structure 1, which is configured by fitting the device-side connector 10 and the harness-side connector 20 together, will be described below.

[0085] First, the harness-side connector 20 is placed on the front side Df of the device-side connector 10. At this time, the device-side connector 10 is placed so that the harness-side terminals 21 and the fixing bolts 31 of the fixing mechanism 30 are exposed toward the back side Db inside the housing seal cover 25, as shown in Fig. 8(b), relative to the device-side connector 10 in which the device-side terminals 11 and the fixing protrusions 163 are exposed inside the hood portion 122 as shown in Fig. 8(a).

[0086] Then, when the harness side connector 20 is moved toward the rear side Db relative to the equipment side connector 10, the hood portion 122 of the male housing 12 of the equipment side connector 10 is inserted into the insertion groove 2311 of the housing shell 23 of the harness side connector 20, and the equipment side terminal 11 and the harness side terminal 21 come into contact.

[0087] Specifically, the hood portion 122 of the male housing 12 inserted into the insertion groove 2311 of the housing shell 23 abuts against the housing seal 24 attached to the inner wall 231b of the housing shell 23. Furthermore, the device-side terminals 11 held by the holding frame 125 of the device-side connector 10 are inserted into the harness-side terminals 21 in the harness-side connector 20, and the harness-side terminals 21 and the device-side terminals 11 come into contact with each other.

[0088] Furthermore, the fixing mechanism 30 of the harness-side connector 20 is fastened to the fixing protrusion 163 of the mounting base 16 of the device-side connector 10. Specifically, the fixing bolt 31 constituting the fixing mechanism 30 of the harness-side connector 20 is screwed into the threaded engagement hole 164 of the fixing protrusion 163, thereby fastening and fixing the device-side connector 10 and the harness-side connector 20 together. At this time, the end portion on the rear side Db of the collar member 32 constituting the fixing mechanism 30 abuts against the end surface on the front side Df of the fixing convex portion 163 via the E ring .

[0089] In this way, the harness side connector 20 is fitted into the equipment side connector 10, and with the equipment side terminal 11 and the harness side terminal 21 in contact, the fixing bolt 31 of the fixing mechanism 30 provided on the harness side connector 20 is fastened to the fixing protrusion 163 of the equipment side connector 10, thereby connecting the equipment side connector 10 and the harness side connector 20 and completing the assembly of the connector connection structure 1.

[0090] In the connector connection structure 1 connecting the equipment side connector 10 and the harness side connector 20, the high-voltage wire 201 inserted into the harness insertion portion 232 of the housing shell 23 in the harness side connector 20 and the inner surface of the housing main body 231 are waterproofed by the wire seal 26, and in the equipment side connector 10, the space between the mounting base 16 and the male housing 12 is waterproofed by the equipment side seal 13.

[0091] In addition, at the connection point between the device side connector 10 and the harness side connector 20 in the connector connection structure 1, when the hood portion 122 of the device side connector 10 is inserted into the insertion groove 2311 of the housing shell 23, water is prevented from entering by the housing seal 24 attached to the inner wall 231b.

[0092] Therefore, as shown in Figure 11(b), if the harness side connector 20 does not have the mounting hole 2313, the mounting groove 2314, and the fixing mechanism 30, a watertight area Pw that can prevent water from entering from the outside will be formed inside the connected equipment side connector 10 and harness side connector 20 that make up the connector connection structure 1, and the equipment side terminal 11 and the harness side terminal 21 will be connected inside the watertight area Pw.

[0093] However, the mounting hole 2313 is disposed in the center of the housing main body 231 in the width direction W, that is, between the harness insertion portions 232 extending from both sides in the width direction W, and is disposed inside the water stopping area Pw. Therefore, a water penetration path Fr is formed between the surface of the front side Df of the housing main body 231 and the bolt head 311 of the fixing bolt 31, and between the inner surface of the mounting hole 2313 and the outer surface of the collar member 32.

[0094] In response to this, a mounting groove 2314 is formed at the end of the front side Df of the mounting hole 2313, and an O-ring 33 that fits around the collar member 32 is provided and placed in the mounting groove 2314. Therefore, the water penetration paths Fr formed between the surface of the front side Df of the housing main body 231 and the bolt head 311 of the fixing bolt 31, and between the inner surface of the mounting hole 2313 and the outer surface of the collar member 32, are sealed by the O-ring 33, making it possible to prevent water from penetrating into the water-stopping region Pw.

[0095] As described above, the harness side connector 20 in the connector connection structure 1, which fits the harness side connector 20 and the equipment side connector 10 together to connect the two connection terminals 11, 21 provided on each, is provided with two high-voltage wires 201 each having a harness side terminal 21 attached to its tip, and a housing shell 23 in which the harness side terminals 21 are arranged, and the equipment side connector 10 is provided with two equipment side terminals 11 and a male housing 12 in which a portion of the equipment side terminals 11 are arranged inside.

[0096] In a connected state in which the harness side connector 20 and the device side connector 10 are mated and the harness side terminal 21 and the device side terminal 11 are connected, the harness side terminal 21 and the device side terminal 11 are arranged inside, and a waterproof area Pw that is waterproofed from the outside is formed, and a fixing mechanism 30 is arranged in the waterproof area Pw and fixes the mated state of the harness side connector 20 and the device side connector 10.

[0097] The fixing mechanism 30 is provided in the housing shell 23 and includes a fixing bolt 31 extending in the depth direction D between the harness side connector 20 and the device side connector 10, and a fixing protrusion 163 provided in the male housing 12 and fastened by the fixing bolt 31. The harness side connector 20 is also provided with a collar member 32 that fits over the fixing bolt 31 and transmits the fastening force of the fixing bolt 31 to the device side connector 10, and an O-ring 33 that seals the gap between the collar member 32 and the harness side connector 20. This prevents the connectors 10, 20 from tilting when they are mated and secured together by the fixing bolt 31.

[0098] In more detail, the connector connection structure 1 connects the harness side connector 20, which has two high-voltage wires 201 with harness side terminals 21 attached to the ends thereof and a housing shell 23 in which the harness side terminals 21 are arranged, and the equipment side connector 10, which has two equipment side terminals 11 and a male housing 12 in which the equipment side terminals 11 are arranged, and when the harness side terminals 21 and the equipment side terminals 11 are connected and the harness side connector 20 and the equipment side connector 10 are fitted together, the harness side terminals 21 and the equipment side terminals 11 are arranged inside and a waterproof area Pw is formed which is waterproof from the outside.

[0099] In addition, a fixing mechanism 30 that fixes the mated state between the harness side connector 20 and the equipment side connector 10 is arranged in the watertight area Pw, and the fixing mechanism 30 is provided on the housing shell 23 and is equipped with a fixing bolt 31 that extends in the depth direction D between the harness side connector 20 and the equipment side connector 10, and a fixing protrusion 163 that is provided on the male housing 12 and to which the fixing bolt 31 is fastened.

[0100] Therefore, there is no misalignment between the axis on which the mating force for connecting the connection terminals 11, 21 is applied when the connectors 10, 20 are mated and the axis on which the fastening force for fixing by the fixing bolt 31 is applied, i.e., the depth direction D on which the mating force for connecting the connection terminals 11, 21 is applied coincides with the depth direction D on which the fastening force for fixing by the fixing bolt 31 is applied. Therefore, the connectors 10, 20 can be mated and prevented from tilting in the mated state fixed by the fixing bolt 31.

[0101] Furthermore, the harness-side connector 20 is provided with a collar member 32 that fits over the fixing bolt 31 and transmits the fastening force of the fixing bolt 31 to the device-side connector 10, so the fastening force of the fixing bolt 31 does not act directly on the housing shell 23 provided on the harness-side connector 20, thereby more reliably fixing the fitted state. Furthermore, the amount of fastening of the fixing bolt 31 can be adjusted by the length of the collar member 32.

[0102] The fixing mechanism 30, which includes the fixing bolt 31 and the fixing protrusion 163 to which the fixing bolt 31 is fastened, is disposed in the water-stopping region Pw. Therefore, there is a risk that the fixing mechanism 30 will reduce the water-stopping properties of the water-stopping region Pw.

[0103] In response to this, an O-ring 33 is provided that fits over the fixing bolt 31 and seals the gap between the harness-side connector 20 and a collar member 32 that transmits the fastening force of the fixing bolt 31 to the device-side connector 10. This prevents a decrease in watertightness due to the fixing mechanism 30 being disposed in the watertight region Pw, and ensures watertightness.

[0104] In addition, the housing shell 23 is provided with an attachment portion 2312 having an attachment hole 2313 through which the fixing bolt 31 and the collar member 32 are inserted, and the O-ring 33 is arranged between the outer periphery of the collar member 32 inserted into the attachment hole 2313, the bottom surface of the bolt head 311 of the fixing bolt 31, and the housing shell 23.

[0105] Therefore, the water penetration path Fr that occurs between the bottom surface of the bolt head 311 of the fixing bolt 31 inserted into the mounting hole 2313, the outer periphery of the collar member 32 inserted into the mounting hole 2313, and the peripheral edge of the mounting hole 2313 in the housing shell 23 can be sealed by the O-ring 33, thereby improving water sealing performance.

[0106] Furthermore, a ring-shaped mounting groove 2314 that is more recessed than other portions is provided on the periphery of the mounting hole 2313 in the housing shell 23, and the O-ring 33 is disposed in the mounting groove 2314. Therefore, when the O-ring 33 is disposed on the periphery of the mounting hole 2313, the housing shell 23 is fixed by the fastening fixing bolt 31 via the O-ring 33. However, since the O-ring 33 is disposed in the mounting groove 2314 on the periphery of the mounting hole 2313, the housing shell 23 can be restricted and fixed by the bolt head 311 while ensuring watertightness by the O-ring 33. This makes it possible to further stabilize the connection state of the connectors 10, 20.

[0107] Furthermore, since an E-ring 34 is provided to prevent the collar member 32 fitted onto the fixing bolt 31 from coming off, the workability of connecting the connectors 10, 20 can be improved. More specifically, the fixing bolt 31 is attached to the housing shell 23 in advance, and the collar member 32 is fitted onto the fixing bolt 31. This improves the workability of connecting the connectors 10, 20 compared to fitting the connectors 10, 20 while the fixing bolt 31 and collar member 32 are attached.

[0108] There is also the risk that the collar member 32 may inadvertently come off the fixing bolt 31 to which it is attached, or that the fixing bolt 31 itself, onto which the collar member 32 is fitted, may fall off from the housing shell 23. In response to this, the E-ring 34 can prevent the collar member 32 from inadvertently coming off the fixing bolt 31. Furthermore, the E-ring 34, which prevents the collar member 32 from inadvertently coming off the fixing bolt 31, can indirectly prevent the fixing bolt 31 itself, onto which the collar member 32 is fitted, from falling off from the housing shell 23.

[0109] Furthermore, because the collar member 32 is a metal tubular body, the fastening force of the fixing bolt 31 attached to the harness-side connector 20 can be reliably transmitted without loss to the device-side connector 10. This prevents problems such as deformation of the housing shell 23 of the harness-side connector 20 due to the fastening force of the fixing bolt 31. This prevents the housing shell 23 from being deformed by the fastening force of the fixing bolt 31, thereby preventing a decrease in the watertightness of the watertight region Pw.

[0110] In addition, the two harness side terminals 21 and the device side terminal 11 are arranged at a predetermined distance in the width direction W that intersects with the depth direction D, and the fixing mechanism 30 is arranged between the two connected harness side terminals 21 and the device side terminal 11 in a connected state in which the two harness side terminals 21 and the device side terminal 11 are connected.

[0111] Therefore, it is possible to eliminate axial misalignment between the axis that applies the mating force to fit the connectors 10, 20 and connect the connection terminals 11, 21 and the axis that applies the fastening force to fix the connectors with the fixing bolt 31, and it is possible to more reliably prevent tilting when the connectors are fitted and fixed with the fixing bolt 31.

[0112] Furthermore, since the high-voltage wire 201 extends in the depth direction D, even if the high-voltage wire 201 is a connector-attached electric wire extending from the housing shell 23 in the depth direction D, it is possible to eliminate or reduce the axial misalignment between the axis that applies the mating force to fit the connectors 10, 20 and connect the connection terminals 11, 21 and the axis that applies the fastening force for fixing by the fixing bolt 31 without reducing the watertightness of the watertight area Pw, and it is possible to more reliably prevent tilting in the fitted state fixed by the fixing bolt 31.

[0113] The above-described connector connection structure 1 is configured by moving and connecting the harness-side connector 20 to the rear side Db in the depth direction D, which is the longitudinal direction of the high-voltage wire 201 (wire harness 200), relative to the device-side connector 10, and fastening them with the fixing bolt 31. In other words, the connector connection structure 1 is configured by connecting the harness-side connector 20 and the device-side connector 10 along the longitudinal direction of the high-voltage wire 201 (wire harness 200).

[0114] In contrast, in the connector connection structure 1X of the second embodiment described below, as shown in Figures 12 to 16, the high-voltage wire 201 (wire harness 200) extends in a height direction H that intersects with the depth direction D in which the harness side connector 20X is fitted and connected to the equipment side connector 10X.

[0115] Note that Figure 12 is an explanatory diagram of the connector connection structure 1X of the second embodiment, Figures 13 and 14 are oblique views of the connector connection structure 1X of the second embodiment in a separated state, Figure 15 is an explanatory diagram of the connector connection structure 1X of the second embodiment, and Figure 16 shows an enlarged view of part b of Figure 15(a). do.

[0116] In detail, FIG. 12(a) shows a perspective view of the connector connection structure 1X as seen from the front, left side and top, and FIG. 12(b) shows a perspective view of the connector connection structure 1X as seen from the front, left side and bottom. In addition, Figure 15(a) shows a cross-sectional view of the connector connection structure 1X of the second embodiment at the center position in the height direction H, and Figure 10(b) shows a cross-sectional view of the connector connection structure 1X of the second embodiment at the center position in the width direction W.

[0117] The equipment side connector 10X and the harness side connector 20X that constitute the connector connection structure 1X have the same configuration as the equipment side connector 10 and the harness side connector 20 that constitute the connector connection structure 1 described above, and similar configurations are indicated by adding an X to the symbols of the equipment side connector 10 and the harness side connector 20, and the same configurations are assigned the same symbols, and their explanations are omitted.

[0118] However, in the above-described connector connection structure 1, the housing shell 23 provided at the ends of the two high-voltage wires 201 constituting the wire harness 200 has the harness insertion portion 232 on the front side Df of the housing main body 231 which is a substantially rectangular parallelepiped and has an opening on the rear side Db. In contrast, in the connector connection structure 1X of the second embodiment, the housing shell 23X of the harness-side connector 20X has a rectangular shape in front view that is longer in the height direction H than in the width direction W, and has the harness insertion portion 232X extending from the lower side Hd of the rectangular parallelepiped housing main body 231X which is opening on the rear side Db toward the lower side Hd.

[0119] The high-voltage wire 201 extending in the height direction H is inserted into the harness insertion portion 232X extending from the housing main body 231X toward the downward side Hd. The harness-side connector 20X, which has the housing main body 231X opening to the back side Db and has the high-voltage wire 201 (wire harness 200) extending in the height direction H, moves to the back side Db and fits with the device-side connector 10X, thereby constituting the connector connection structure 1X.

[0120] In the connector connection structure 1X configured in this manner, the housing main body 231X is also provided with a fixing mechanism 30X, and the device-side connector 10X is fastened and fixed by the fixing mechanism 30X. The fixing mechanism 30X provided on the housing main body 231X is disposed in the watertight area PwX when the device-side connector 10X and the harness-side connector 20X are connected.

[0121] Specifically, as shown in Figure 16, a watertight area PwX that can prevent water from entering from the outside is formed inside the connected device side connector 10X and harness side connector 20X that make up the connector connection structure 1X, and the device side terminal 11X and the harness side terminal 21X are connected inside the watertight area PwX.

[0122] However, since the mounting hole 2313X is located inside the water-stopping area PwX, a water penetration path FrX is formed between the surface of the front side Df of the housing main body 231X and the bolt head 311X of the fixing bolt 31X, and between the inner surface of the mounting hole 2313X and the outer surface of the collar member 32X.

[0123] To address this issue, a mounting groove 2314X is formed at the end of the front side Df of the mounting hole 2313X, and an O-ring 33X that fits around the collar member 32X is provided and placed in the mounting groove 2314X. Therefore, the water penetration paths FrX formed between the surface of the front side Df of the housing main body 231X and the bolt head 311X of the fixing bolt 31X, and between the inner surface of the mounting hole 2313X and the outer surface of the collar member 32X, are sealed by the O-ring 33, making it possible to prevent water from penetrating into the water-stopping area PwX.

[0124] The connector connection structure 1X of the second embodiment configured in this manner is different from the connector connection structure 1 connecting the above-mentioned equipment side connector 10 and harness side connector 20 in that the longitudinal direction of the high-tension wire 201 (wire harness 200) constituting the harness side connector 20 is aligned along the height direction H that intersects with the depth direction D, but can achieve the same functions and effects as the above-mentioned connector connection structure 1 connecting the equipment side connector 10 and harness side connector 20.

[0125] That is, the direction intersecting the depth direction D and the width direction W is defined as the height direction H, and the high-voltage wire 201 extends in the height direction H. Therefore, even if the high-voltage wire 201 is a connector-attached electric wire extending from the housing shell 23 in the height direction H, it is possible to eliminate or reduce axial misalignment between the axis on which a mating force for mating the connectors 10X, 20X and connecting the connection terminals 11X, 21X is applied and the axis on which a fastening force for fixing by the fixing bolt 31X is applied, without reducing the watertightness of the watertight region PwX, and it is possible to more reliably prevent tilting in the mated state fixed by the fixing bolt 31X.

[0126] In the configuration of the present invention and the correspondence with the embodiments, the first connector of the present invention corresponds to the harness side connector 20, 20X, Similarly, The second connector is compatible with the device side connectors 10 and 10X. The connection terminals correspond to connection terminals 11, 11X, 21, and 21X. The connector connection structure is compatible with connector connection structure 1,1X. The first connection terminal corresponds to the harness side terminals 21 and 21X. The electric wire corresponds to high-voltage wire 201, The housing is compatible with housing shells 23 and 23X. The second connection terminal corresponds to the device side terminals 11 and 11X. The connector housing is compatible with male housings 12 and 12X. The water-stopping area corresponds to the water-stopping areas Pw and PwX. The fixing mechanism is compatible with the fixing mechanism 30 and 30X. The fixing bolts are compatible with fixing bolts 31 and 31X. The bolt holes correspond to the fixing protrusions 163 and 163X. The collar parts correspond to the collar parts 32 and 32X. The watertight portion and the sealing member correspond to the O-ring 33. The insertion holes correspond to the mounting holes 2313 and 2313X. The bolt head is compatible with bolt heads 311 and 311X. The groove corresponds to the mounting grooves 2314 and 2314X. The retaining material is compatible with E-ring 34. The mating direction corresponds to the depth direction D. The cross direction corresponds to the width direction W, Although the second intersecting direction corresponds to the height direction H, this invention is not limited to the configuration of the above-described embodiment, but can be applied based on the technical ideas set forth in the claims, and many embodiments can be obtained.

[0127] For example, the device-side connector 10 described above includes two device-side terminals 11, but may include three or more device-side terminals 11. Furthermore, in the device-side terminal 11, the circuit connection portion 113 may be formed by bending the terminal insertion portion 112 in a direction perpendicular to the plate thickness direction. In the above description, the device-side terminal 11 is made of a metal plate material, but it may be tubular, columnar, or rod-shaped as long as it is made of metal.

[0128] The O-ring 33 is fitted onto the outside of the collar member 32 and may be a ring-shaped packing material having appropriate elasticity, a rubber plug, or a potting made of a hardening resin having water-stopping properties. Furthermore, a C-ring may be used in place of the E-ring 34 that prevents the fixing bolt 31 and the collar member 32 from accidentally coming out of the housing shell 23. Furthermore, the E-ring 34 prevents the collar member 32 from coming out of the housing shell 23 together with the fixing bolt 31, but it may be configured to prevent only the collar member 32 from coming out of the housing shell 23, or it may be configured to prevent the collar member 32 from coming out relative to the fixing bolt 31. [Explanation of symbols]

[0129] 1,1X...Connector connection structure 10,10X...Device side connector 11,11X…Device side terminal 12,12X...Male housing 20, 20X...Harness side connector 21, 21X...Harness side terminal 23, 23X…Housing shell 30,30X…Fixing mechanism 31,31X...Fixing bolt 32, 32X...Colored parts 33,33X...O-ring 34, 34X...E-ring 163, 163X...Fixed convex part 201...High voltage power line 2313, 2313X... Mounting holes 2314, 2314X...Installation groove 311, 311X...Bolt head Pw,PwX…Water stop area D...Depth direction H: Height W: Width direction

Claims

1. A connector connection structure in which a first connector and a second connector are fitted together to connect two or more connection terminals provided on the first connector and the second connector, The first connector is two or more electric wires each having a first connection terminal attached to its tip; a housing in which the first connection terminal is disposed, The second connector is at least two second connection terminals; a connector housing in which at least a portion of the second connection terminal is disposed, When the first connector and the second connector are fitted together and the first connection terminal and the second connection terminal are connected to each other, a water-stopping area is formed in which the first connection terminal and the second connection terminal are disposed inside and water is stopped from entering from the outside, a fixing mechanism is provided that is disposed in the water blocking area and fixes the mated state of the first connector and the second connector; The fixing mechanism includes: a fixing bolt provided in the housing and extending in a fitting direction of the first connector and the second connector; a bolt hole portion provided in the connector housing and into which the fixing bolt is fastened, The first connector a collar member that fits onto the fixing bolt and transmits the fastening force of the fixing bolt to the second connector; a waterproof portion that prevents water from entering between the collar member and the first connector; Connector connection structure.

2. The housing is provided with an insertion hole through which the fixing bolt and the collar member are inserted, The watertight portion is a ring-shaped seal member disposed between the outer periphery of the collar member inserted into the insertion hole, the bottom surface of the bolt head of the fixing bolt, and the housing. The connector connection structure according to claim 1 .

3. a ring-shaped groove portion that is recessed more than other portions is provided on the periphery of the insertion hole in the housing, The sealing member is disposed in the groove. The connector connection structure according to claim 2 .

4. A retaining member is provided to prevent the collar member fitted onto the fixing bolt from coming out. The connector connection structure according to claim 1 .

5. The collar member is a metal tubular body. The connector connection structure according to claim 1 .

6. the first connection terminal and the second connection terminal are arranged at a predetermined interval in a direction intersecting the fitting direction; The fixing mechanism includes: In the connection state in which the two first connection terminals and the two second connection terminals are connected, 6. The connector connection structure according to claim 1.

7. The electric wire extends in the fitting direction. The connector connection structure according to claim 6.

8. a direction intersecting the fitting direction and the intersecting direction is defined as a second intersecting direction; The electric wire extends in the second intersecting direction. The connector connection structure according to claim 6.

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