JP7672299B2 - Connector connection structure and harness side connector - Google Patents

Description

This invention relates to a connector connection structure using a connector that is attached to, for example, a wire harness and connected to a device such as a motor, and to a harness-side connector.

Electrical equipment installed in automobiles and other vehicles is connected to other electrical equipment and power supplies via wire harnesses, which are bundles of insulated electric wires, to form electrical circuits. In this case, the wire harness is connected to the electrical equipment and power supplies via connectors attached to each of them.

For example, a harness-side connector as shown in Patent Document 1 is connected to a device-side connector provided on a device such as a motor.
Specifically, a terminal provided on the harness side connector and a terminal provided on the equipment side connector are electrically connected, and a flange portion provided on the harness side connector is attached opposite the housing of the equipment side connector to connect the harness side connector and the equipment side connector.

In addition, the connection structure of such a connector may be detached, for example, during maintenance, and there is a risk that foreign matter may enter the inside through the opposing boundary between the flange portion of the harness side connector and the housing of the device side connector during the above-mentioned maintenance or during normal use.

JP 2012-109035 A

The present invention aims to provide a connector connection structure and a harness-side connector that can prevent foreign matter from entering through the boundary between the harness-side connector and the device-side connector.

The present invention relates to a connector connection structure for connecting a harness-side connector including a harness-side terminal attached to an end of an electric wire, a harness-side terminal holding portion for holding the harness-side terminal, and a harness-side housing that houses the harness-side terminal holding portion for holding the harness-side terminal, to an equipment-side connector including an equipment-side terminal to which the harness-side terminal is connected, an equipment-side terminal holding portion for holding the equipment-side terminal, and an equipment-side housing to which the harness-side housing is attached, wherein one of the equipment-side housing and the harness-side housing is provided with a fitting groove into which an opposing end of the other is fitted, and a blocking portion is provided at a boundary portion between the harness-side housing and the equipment-side housing in a connected state in which the harness-side housing is attached to the equipment-side housing, for blocking intrusion of foreign matter from the boundary portion, and the blocking portion is configured to block intrusion of foreign matter from the other of the equipment-side housing and the harness-side housing in the connected state. The opposing end portions are inserted into and fitted into the fitting groove to block the intrusion of foreign matter from the boundary portion between the harness-side housing and the device-side housing, and in the connected state, a sealing portion that seals the boundary portion between the harness-side terminal holding portion and the device-side terminal holding portion is provided on the harness-side terminal holding portion, on the inner side of the blocking portion, and the sealing portion is provided on the harness-side terminal holding portion and contacts and seals the device-side terminal holding portion in the connected state. When the harness-side housing is attached to and connected to the device-side housing, before the sealing portion provided on the harness-side terminal holding portion comes into contact with the device-side terminal holding portion to seal, the opposing end portion of the other of the device-side housing and the harness-side housing is inserted into and fitted into the fitting groove to block the intrusion of foreign matter from the boundary portion between the harness-side housing and the device-side housing .
It is characterized by:

The blocking section provided at the boundary between the harness side housing and the device side housing may be provided in at least one of the harness side housing and the device side housing, or may be provided separately from the harness side housing and the device side housing.

The present invention also provides a harness-side connector that is connected to an equipment-side connector, the harness-side connector comprising: a harness-side terminal to be attached to an end of an electric wire; a harness-side terminal holding portion that holds the harness-side terminal; and a harness-side housing that houses the harness-side terminal holding portion that holds the harness-side terminal, the equipment-side terminal holding portion holding an equipment-side terminal to be connected to the harness-side terminal; and an equipment-side housing to which the harness-side housing is attached, the harness-side connector comprising: a blocking portion that blocks the intrusion of foreign matter from a boundary between the harness-side housing and the equipment-side housing in a connected state in which the harness-side housing is attached to the equipment-side housing; and an end of the harness-side housing that fits into a fitting groove provided in the equipment-side housing in the connected state. functions as the blocking section that blocks the intrusion of foreign matter from the boundary portion between the harness side housing and the device side housing, and in the connected state, a sealing section that seals the boundary portion between the harness side terminal holding section and the device side terminal holding section is provided on the harness side terminal holding section on the inner side of the blocking section, and the sealing section is configured to come into contact with the device side terminal holding section to provide a seal in the connected state, and when the harness side housing is attached to and connected to the device side housing, the end portion is inserted into and fitted into the fitting groove before the sealing section comes into contact with the device side terminal holding section to provide a sealing state, thereby achieving a blocking state that blocks the intrusion of foreign matter from the boundary portion between the harness side housing and the device side housing.
It is characterized by:

The device-side housing to which the harness-side housing is attached may be a part of the device-side housing, or may be a portion of the device-side housing to which the harness-side housing is attached.
The device-side terminal is a terminal provided on or connected to a device such as an electrical device or a power supply device.
The foreign matter includes not only solids but also liquids, and the blocking portion may have a sealing structure capable of preventing water ingress as long as it can prevent the intrusion of foreign matter.

According to the present invention, it is possible to prevent intrusion of foreign matter from the boundary between the harness side connector and the device side connector.
In more detail, since a blocking portion is provided at the boundary between the harness-side housing and the device-side housing in a connected state in which the harness-side housing is attached to the device-side housing, blocking the intrusion of foreign matter from the boundary portion, foreign matter can intrude from the boundary portion during use. Also, the blocking portion can prevent foreign matter from intruding into each connector when the harness-side connector is attached or detached.

In addition, one of the equipment side housing and the harness side housing has a mating groove into which the opposing end of the other housing fits, and the blocking portion has the mating groove and the end that fits into the mating groove.

Therefore , when the harness-side connector and the device-side connector are connected, the other end fits into the fitting groove provided on one side. When the other end fits into the fitting groove provided on one side in this way, the creepage distance of the boundary portion becomes longer and a labyrinth structure is formed, which functions as the blocking portion to prevent the intrusion of foreign matter.

Further, a seal is provided at a boundary between the harness side terminal holding portion and the device side terminal holding portion in the connected state in which the harness side housing is attached to the device side housing, for sealing the boundary.

This can prevent foreign matter from entering the connection portion between the harness side terminal and the device side terminal.
In more detail, the blocking portion can block the intrusion of foreign matter from the boundary portion between the harness-side housing and the device-side housing that surrounds the connection portion between the harness-side terminal and the device-side terminal. Even if foreign matter does intrude beyond the blocking portion, the boundary portion between the harness-side terminal holding portion and the device-side terminal holding portion is sealed with the sealing portion, so that the intrusion of foreign matter into the connection portion between the harness-side terminal and the device-side terminal can be prevented.

Furthermore, when the harness side housing is attached and connected to the equipment side housing, the blocking portion is in the blocking state before the sealing portion is in the sealed state. Therefore, when the harness side housing is attached and connected to the equipment side housing, the boundary portion between the equipment side terminal holding portion and the harness side terminal holding portion can be sealed with the sealing portion while the blocking portion blocks the boundary portion between the equipment side housing and the harness side housing, thereby reliably preventing foreign matter from entering the connection portion between the equipment side terminal and the harness side terminal.

In another aspect of the present invention, when the harness side housing is removed from the equipment side housing from the connected state to release the connection, the other opposing end of the equipment side housing and the harness side housing may escape from the mating groove to release the blocking state of the blocking portion before the sealing portion provided on the harness side terminal holding portion moves away from the harness side housing to release the sealed state.

According to this invention, when the connection is released, the sealed state of the sealing part is maintained even if the disconnecting state of the disconnecting part is released, so that it is possible to reliably prevent foreign matter from entering the connection part between the device-side terminal and the harness-side terminal. Therefore, it is possible to prevent foreign matter from entering the connection part between the device-side terminal and the harness-side terminal when reconnecting the device-side connector and the harness-side connector.

In another aspect of the present invention, a flange portion having an opposing surface opposing the equipment side housing is provided at an end of the harness side housing facing the equipment side housing, and the blocking portion may have the flange portion and the equipment side housing.
According to this invention, since the device-side housing and the flange portion face each other in the connected state, the creeping distance at the boundary portion is increased, making it possible to prevent intrusion of foreign matter.

As a further aspect of the present invention, a seal groove may be provided in the flange portion, and a seal member may be fitted in the seal groove.
According to this invention, the boundary portion can be sealed with the seal member, and the intrusion of foreign matter can be prevented.

In another aspect of the invention, the device-side housing may be provided with a mounting base that protrudes from other portions of the device-side housing and to which the harness-side housing is attached, the flange portion faces the opposing surface of the mounting base, and the flange portion may be provided with a side cover portion that covers the side portion of the mounting base.

With this invention, in the connected state, the mounting base and flange portion on the device housing face each other, and the side cover portion on the flange portion covers the side of the mounting base, so the creepage distance at the boundary is further increased, and furthermore, the boundary portion forms a labyrinth structure, which further prevents the intrusion of foreign matter.

As a further aspect of the present invention, the harness side housing and the device side housing may be made of metal, and a conductive connection portion may be provided to electrically connect the harness side housing and the device side housing.
According to the present invention, it is possible to achieve an electromagnetic shielding function in a connector connection structure that connects an equipment side terminal and a harness side terminal.

As a further aspect of the present invention, the harness side housing may be formed by assembling a plurality of divided housings, and a housing shielding portion may be provided at a joint between the divided housings to seal the joint.
The housing blocking portion may be a sealing structure capable of preventing water ingress as long as it can prevent the intrusion of foreign matter.

This invention makes it possible to easily assemble wires equipped with harness side terminal holders and harness side terminals to a harness side housing made of split housings to form a harness side connector, while also preventing the intrusion of foreign matter from the joints between the split housings.

In another aspect of the present invention, the harness side housing and the equipment side housing may be made of metal, the harness side housing and the equipment side housing may be provided with conductive connection portions that allow electrical conductivity, and the split housings may be provided with conductive connection portions that electrically connect the split housings to each other.
According to the present invention, it is possible to achieve an electromagnetic shielding function in a connector connection structure that connects an equipment side terminal and a harness side terminal.

This invention provides a connector connection structure and a harness side connector that can prevent foreign matter from entering through the boundary between the harness side connector and the device side connector.

FIG. FIG. 4 is an explanatory diagram of a connector connection structure in a separated state. FIG. 4 is an explanatory diagram of a connector connection structure in a separated state. FIG. 2 is a cross-sectional view taken along the line CC in FIG. FIG. FIG. FIG. FIG. 4 is a cross-sectional explanatory diagram of a connector connection structure before connection. FIG. 4 is a cross-sectional explanatory diagram of a connector connection structure. FIG. 10 is an enlarged explanatory view of a portion a in FIG. 9( b ). 13 is an explanatory diagram of a connector connection structure according to another embodiment. FIG. 13 is an explanatory diagram of a connector connection structure according to another embodiment in a separated state. FIG. 13 is an explanatory diagram of a connector connection structure according to another embodiment in a separated state. FIG. 11 is an explanatory cross-sectional view of a connector connection structure according to another embodiment. 13 is an explanatory diagram of a connector connection structure according to still another embodiment. 13 is an explanatory diagram of a harness side connector according to still another embodiment. FIG. FIG. 13 is a cross-sectional view illustrating a connector connection structure according to still another embodiment.

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 FIGS. 2 and 3 are explanatory diagrams of the connector connection structure 1 in a separated state.
1(a) is a perspective view showing the front, right side and bottom of the connector connection structure 1, and FIG. 1(b) is a perspective view showing the front, left side and top of the connector connection structure 1. FIG.

Figure 2 shows an explanatory diagram of a perspective view from above Hu of the connector connection structure 1 in a separated state. In detail, the device side connector 10 is shown in a perspective view showing the front, left side and top, and the harness side connector 20 is shown in a perspective view showing the back, left side and top.

Figure 3 shows an explanatory diagram of a perspective view from below Hd of the connector connection structure 1 in a separated state. In detail, the device side connector 10 is shown in a perspective view showing the front, right side, and bottom, and the harness side connector 20 is shown in a perspective view showing the back, right side, and bottom.

4 is a cross-sectional view taken along the line CC in FIG. 1(b), FIG. 5 is an exploded perspective view of the device-side connector 10, and FIGS. 6 and 7 are exploded perspective views of the harness-side connector 20. As shown in FIG.
More specifically, FIG. 4 shows a view of the harness side connector 20 taken along line CC in FIG.

Figure 6 is an exploded perspective view of the harness side connector 20, showing the rear, right side and bottom of the harness side connector 20, and Figure 7 is also an exploded perspective view of the harness side connector 20, showing the rear, left side and top of the harness side connector 20.

FIG. 8 shows an explanatory cross-sectional view of the connector connection structure 1 before connection, FIG. 9 shows an explanatory cross-sectional view of the connector connection structure 1, and FIG. 10 shows an explanatory enlarged view of part a in FIG. 9(b).
In detail, Figure 8(a) shows a cross-sectional view of A-A in Figure 1(a) showing the connector connection structure 1 in a separated state before connection, and Figure 8(b) shows a cross-sectional view of B-B in Figure 1(a) showing the connector connection structure 1 in a separated state before connection.

9(a) shows a cross-sectional view taken along line AA in FIG. 1(a), and FIG. 9(b) shows a cross-sectional view taken along line BB in FIG. 1(a).
Furthermore, Figure 10(a) shows an enlarged view of part a in Figure 9(b) when connecting the equipment side connector 10 and the harness side connector 20 that constitute the connector connection structure 1, and Figure 10(b) shows an enlarged view of part a in Figure 9(b) when connecting the harness side connector 20 in which the arrangement of the first harness side seal 24 has been changed to the equipment side connector 10.

The up-down direction in FIG. 1(a) is the height direction H, the direction connecting the bottom left and top right is the width direction W, and the direction connecting the bottom right and top left is the depth direction D. Furthermore, the upper side in the up-down height direction H is the upper side Hu, and the lower side is the lower side Hd. Moreover, the lower right side in the depth direction D connecting the bottom right and top left is the back side Db, and the upper left side is the front side Df.

For the sake of convenience in explaining the configuration of the connector connection structure 1, the height direction H, width direction W, and depth direction D are defined as the direction in which the device side connector 10 and the harness side connector 20 are attached and detached, the direction in which the harness side connector 20 is attached to the device side connector 10 is defined as the rear side Db, and the direction in which the harness side connector 20 is removed from the device side connector 10 is defined as the front side Df. Furthermore, the width direction W and height direction H are set as directions perpendicular to the depth direction D. However, the directions of the device side connector 10, the harness side connector 20, and the configuration of the connector connection structure 1 are not specified.

As shown in FIG. 1, the connector connection structure 1 is a connection structure that connects an equipment-side connector 10 provided in an electrical device such as a motor or a power supply device mounted on an automobile or the like, to a harness-side connector 20 attached to a wire harness 200 that bundles coated electric wires.

As shown in FIGS. 2 and 3, the device-side connector 10 is attached to a device housing 100 (indicated by dashed lines in FIGS. 2 and 3) of an electrical device.
As shown in FIG. 5 , the device-side connector 10 includes a mounting base 11 , a device-side terminal 12 , a restriction ring 13 , a device-side seal 14 , a device-side terminal holder 15 , and a fixing bolt 16 .

The mounting base 11 is attached to an equipment housing 100 indicated by a dashed line, and serves as a base for fixing an equipment side terminal holding portion 15 and a harness side connector 20, which will be described later.
The mounting base 11 has a vertically elongated rectangular shape that is longer in a height direction H than in a width direction W, and has a through hole 111 penetrating in a depth direction D at the center when viewed from the front.

The portion Hu above the through hole 111 in the mounting base 11 is the fixing portion 112 for fixing the harness side connector 20 to be mounted, and the fixing portion 112 has two fastening holes 113 for bolting the harness side connector 20.

Below the through hole 111 Hd, a fastening hole 114 for fastening the device side terminal holding portion 15 with a fixing bolt 16 is provided in the center in the width direction.
In addition, a fitting groove 115 that is approximately rectangular in front view is provided on the front surface of the mounting base 11 , passing along the inner side of the peripheral portion of the mounting base 11 and between the through hole 111 and the fastening hole 113 .

The fitting groove 115 has a generally rectangular shape when viewed from the front, which corresponds to the shape of a shell body 232 in a housing shell 23 of the harness side connector 20 described later when viewed from the front, and is formed with a groove width corresponding to the plate thickness of the housing shell 23.
The mounting base 11 thus configured is made of metal so as to be electrically connected to the harness side connector 20 (described later) when the mounting base 11 is attached, and to provide an electromagnetic shielding function.

The device side terminal 12 is electrically connected to the electrical equipment body arranged inside the device housing 100 and is connected to the harness side terminal 21 arranged inside the harness side connector 20, and there are two of them, spaced a predetermined distance apart in the width direction W.

The regulating ring 13 regulates the position in the depth direction D of the device side seal 14 attached to the insertion tube portion 153 of the device side terminal holding portion 15 described later, and is formed in a cylindrical shape that fits around the insertion tube portion 153.
The device side seal 14 is a ring-shaped rubber sealing member that is attached to the insertion tube portion 153 of the device side terminal holding portion 15 described later and seals the gap between the insertion tube portion 153 of the device side terminal holding portion 15 and the mounting base 11.

The device side terminal holding portion 15 is for holding the device side terminal 12 on the mounting base 11, and includes a holding portion 151 that holds the device side terminal 12, a hood portion 152 that surrounds the holding portion 151, a cylindrical insertion tube portion 153 that is inserted into the through hole 111 of the mounting base 11, and a fixing protrusion 154 that protrudes downward Hd in the height direction H and is used to attach a fixing bolt 16 that fixes the device side terminal holding portion 15 to the mounting base 11.

The holding portion 151 is configured to hold each of the device-side terminals 12 arranged at a predetermined interval in the width direction W in an insulated state.
The hood portion 152 is formed in the shape of a peripheral wall with an opening on the front side Df.

The device-side connector 10 having each element configured in this manner is assembled by assembling the device-side terminal 12 to the holding portion 151 of the device-side terminal holding portion 15, and fitting the device-side seal 14 and the restriction ring 13 onto the insertion tube portion 153. Then, the insertion tube portion 153 of the device-side terminal holding portion 15 having the device-side terminal 12, restriction ring 13, and device-side seal 14 assembled thereto is inserted into the through hole 111 of the mounting base 11, and the fixing bolt 16 attached to the fixing protrusion 154 is screwed into the fastening hole 114 to fix the mounting base 11 and the device-side terminal holding portion 15, completing the assembly of the device-side connector 10.
As described above, in the device-side connector 10 , the fitting groove 115 is disposed on the front surface of the mounting base 11 so as to surround the outside of the device-side terminal holding portion 15 assembled to the mounting base 11 .

The harness side connector 20 is attached to the above-mentioned device side connector 10 to form the connector connection structure 1, and is a connector that connects the device side terminal 12 of the device side connector 10 to the harness side terminal 21 arranged inside.

The harness side connector 20 includes a harness side terminal 21, a harness side terminal holding portion 22, a housing shell 23, a first harness side seal 24, a fixing frame 25, a second harness side seal 26, an electric wire holding portion 27, and a third harness side seal 28.

The harness side terminal 21 is a high-voltage terminal attached to the electric wire 202 exposed from the tip of the high-voltage electric wire 201, which is covered with an insulating coating 203. In the case of a wire harness 200 made up of two high-voltage electric wires 201, a harness side terminal 21 is attached to each high-voltage electric wire 201, and the harness side connector 20 has two harness side terminals 21.

The harness side terminal holding section 22 holds the two harness side terminals 21 at a predetermined position inside the harness side connector 20, and includes a harness insertion tube section 221 through which the wire harness 200 is inserted, and a holding section main body 222 that positions the harness side terminals 21 provided at the tip of the wire harness 200 inserted into the harness insertion tube section 221.

The harness insertion tube portion 221 is a tube-shaped body having an elliptical shape when viewed from the bottom, with its lower end open, and its upper end communicating with the inside of the holding portion main body 222 .
It is disposed at the upper end of the harness insertion tube portion 221, has a generally rectangular parallelepiped shape with an open inner side Db, and is configured to hold the harness side terminal 21 therein.

The holding portion main body 222 is constituted by a double wall including an outer wall 222a and an inner wall 222b, and is configured to hold the harness side terminal 21 inside the inner wall 222b.
The space between the outer wall 222a and the inner wall 222b is where the hood portion 152 of the equipment side terminal holding portion 15 of the equipment side connector 10 is inserted when the equipment side connector 10 and the harness side connector 20 are assembled, and where the first harness side seal 24 is attached.

The first harness side seal 24 is disposed between the outer wall 222a and the inner wall 222b of the harness side terminal holding portion 22. It is a sealing material that seals between the equipment side terminal holding portion 15 of the equipment side connector 10 and the harness side terminal holding portion 22 of the harness side connector 20 when the equipment side connector 10 and the harness side connector 20 are assembled. The first harness side seal 24 is made of rubber and has a ring shape that is rectangular in plan view and matches the shape of the holding portion main body 222 when viewed from behind.

The housing shell 23 covers the outside of the harness-side terminal holding portion 22 and forms the outer shape of the harness-side connector 20 .
The housing shell 23 has the same shape as the harness side terminal holding portion 22 , but is formed slightly larger than the harness side terminal holding portion 22 , and includes a harness insertion tube outer portion 231 , a shell body 232 , and a connector fixing portion 233 .

In more detail, the harness insertion tube exterior 231 is a cylindrical body that is slightly larger than the harness insertion tube portion 221, and has an elliptical shape when viewed from the bottom, with an open lower end, so that the harness insertion tube portion 221 through which the wire harness 200 is inserted is located inside, and the upper end is connected to the inside of the shell main body 232.

The shell body 232 is disposed at the upper end of the harness insertion tube exterior 231, is slightly larger than the retaining portion body 222 disposed inside, and has a generally rectangular parallelepiped shape with an open inner side Db.
In addition, in the shell main body 232 formed in an approximately rectangular parallelepiped shape with the rear side Db open, the peripheral portion of the rear side Db in the depth direction D is an engagement insertion portion 234 that is inserted into the engagement groove 115 and engages with it, and the inside of the engagement insertion portion 234 is an engagement opening 235 through which the harness side terminal 21 is exposed to the rear side Db in the depth direction D.

The connector fixing portion 233 protrudes upward Hu in the height direction H from the shell main body 232 and is formed in a plate shape for mounting a bolt (not shown) for fixing the housing shell 23 to the mounting base 11 .
The connector fixing portion 233 is disposed on the front side Df of the fitting insertion portion 234 in the depth direction D in the shell main body 232 .

The housing shell 23 that encases the harness side terminal holding portion 22 is attached to the mounting base 11, and is made of metal so that it is electrically conductive when the connector fixing portion 233 is bolted to the fixing portion 112 of the mounting base 11 and provides electromagnetic shielding.

The housing shell 23 thus configured is configured by assembling split components 31, 32 obtained by dividing the shell main body 232 in the height direction H.
In detail, the shell body 232 is divided by a virtual horizontal plane (not shown) along the width direction W and depth direction D, and an upper divided component 31 above the virtual horizontal plane and a lower divided component 32 below the virtual horizontal plane are assembled in the height direction H.

The upper split component 31 is formed by the portion of the shell body 232 above the imaginary horizontal plane and the connector fixing portion 233, while the lower split component 32 is formed by the portion of the shell body 232 below the imaginary horizontal plane and the harness insertion tube exterior 231. The upper split component 31 and the lower split component 32 are assembled in the height direction H at the joint 33 to form the housing shell 23.

The lower end portion of the upper divided component 31 and the upper end portion of the lower divided component 32 that constitute the joint 33 are in a square U-shape that opens toward the rear side Db in the depth direction D when viewed from the height direction H. The joint 33 is made up of a joint protrusion 34 and a joint recess 35 that are formed along the edges of the side portions of the square U-shape that are arranged on both sides in the width direction W.

In detail, the joining protrusion 34 is formed so as to protrude downward Hd along the inner surface side of the lower edge of the side portion arranged on both sides in the width direction W of the upper split component 31 which is formed in an angular U-shape when viewed from the bottom.
The joining recess 35 is composed of groove forming walls arranged at a predetermined interval on the inside of the upper edges of the side portions located on both sides in the width direction W of the lower split component 32, which is formed in an angular U-shape when viewed in a plane.

The upper end of the joint recess 35 is formed to coincide with the upper end of the lower divided component 32. The joint protrusion 34 and the joint recess 35 are formed to avoid the portion that forms the fitting insertion portion 234.
As described above, the joint protrusion 34 is inserted into the joint recess 35 to join and assemble the upper divided component 31 and the lower divided component 32, and the joint portion 33 of the shell body 232 becomes flush.

The conductive connection piece 36 is provided so as to protrude downward Hd along the inner surface of the lower edge of the rear side Db of the upper divided component 31, which is formed into an angular U-shape when viewed from the bottom. The joint protrusions 34 on both sides in the width direction W protruding from the lower end of the upper divided component 31 are continuous with the conductive connection piece 36, and the conductive connection piece 36 is provided with a bolt hole for screwing in a fixing bolt.

When the upper division component 31 and the lower division component 32 are assembled, the conductive connection piece 36 configured in this manner is placed on the inner side of the side surface of the rear side Db of the lower division component 32, which is formed into an angular U-shape in a plan view, and is bolted to form a conductive connection portion 37 (see Figure 1) that electrically connects the upper division component 31 and the lower division component 32.

The fixing frame 25 is attached to the inner wall 222 b of the harness side terminal holding portion 22 from the rear side Db in the depth direction D, and fixes the harness side terminals 21 arranged in the holding portion body 222 of the harness side terminal holding portion 22 .
The second harness side seal 26 has holes 261 through which the two high-voltage wires 201 are inserted, and is a sealing member that seals between the high-voltage wires 201 inserted into the harness insertion tube portion 221 and the inner surface of the harness insertion tube portion 221. For this reason, the second harness side seal 26 is formed in an elliptical shape that can be placed inside the harness insertion tube portion 221.

The electric wire holding portion 27 holds the high-voltage electric wire 201 inserted into the harness insertion tube portion 221 in the harness insertion tube portion 221, has holes through which the two high-voltage electric wires 201 are inserted, and is configured as two divided bodies in the depth direction D so that the hole can be divided.

The third harness side seal 28 is a seal member that fits around the harness insertion tube portion 221 of the harness side terminal holding portion 22 and seals between the harness insertion tube portion 221 and the harness insertion tube exterior 231. The third harness side seal 28 is formed in an elliptical shape that can be fitted around the harness insertion tube portion 221.

The harness side connector 20 having the above-described components is assembled as follows.
The two high-voltage wires 201 with the harness-side terminals 21 attached to their ends are inserted into the holes 261, the second harness-side seal 26 is attached, and the electric wire holding portion 27 composed of two divided bodies is assembled and attached to the wire harness 200. At this time, the lower divided body 32 constituting the housing shell 23 is inserted into the wire harness 200 in advance.

The wire harness 200 to which the second harness side seal 26 and the electric wire holding portion 27 are attached is inserted into the harness insertion tube portion 221 from below Hd, and the harness side terminal 21 is placed inside the inner wall 222b of the holding portion main body 222 in the harness side terminal holding portion 22. At this time, the second harness side seal 26 and the electric wire holding portion 27 are placed inside the harness insertion tube portion 221.

A fixing frame 25 is attached to the holding portion main body 222 in which the harness side terminals 21 are arranged inside the inner wall 222b, and the harness side terminals 21 are fixed to the harness side terminal holding portion 22. In addition, a first harness side seal 24 is fitted onto the inner wall 222b, and the first harness side seal 24 is arranged between the outer wall 222a and the inner wall 222b.
Further, the third harness side seal 28 is attached so as to be fitted onto the harness insertion tube portion 221 from the lower side Hd.

The housing shell 23 is assembled so as to surround the harness side terminal holding portion 22 assembled in this manner.
Specifically, the lower split component 32, which has been inserted into the wire harness 200 in advance, is disposed below Hd the harness-side terminal holding portion 22, and the upper split component 31 is disposed above Hu the harness-side terminal holding portion 22. Then, the joint protrusion 34 of the upper split component 31 is inserted into the joint recess 35 of the lower split component 32 to form the housing shell 23 joined at the joint 33, thereby completing the assembly of the harness-side connector 20.

As shown in FIG. 8, the device-side connector 10 and harness-side connector 20 assembled as described above are arranged on the near side Df of the device-side connector 10 in the depth direction D, with the mating opening 235 facing the far side Db in the depth direction D, and the harness-side connector 20 is attached to the device-side connector 10.

By attaching the harness side connector 20 to the equipment side connector 10, as shown in Figures 9 and 10, the equipment side terminal 12 on the equipment side connector 10 and the harness side terminal 21 on the harness side connector 20 are physically connected, resulting in an electrically connected state between the wire harness 200 and the electrical equipment equipped with the equipment side connector 10.

In this connected state, the fitting insertion portion 234 of the housing shell 23 of the harness side connector 20 is inserted into the fitting groove 115 provided in the mounting base 11 of the device side connector 10 .
The harness side connector 20 is fixed to the device side connector 10 by a bolt (not shown) connecting the connector fixing portion 233 of the housing shell 23 in the harness side connector 20 to the fixing portion 112 of the mounting base 11 in the device side connector 10 .

The fixed portion 112 of the metal mounting base 11 and the connector fixing portion 233 of the metal housing shell 23 abut against each other in the depth direction D and are fastened with a bolt (not shown), so that the metal mounting base 11 and the metal housing shell 23 are electrically connected.

In this connected state, the hood portion 152 of the device-side terminal holding portion 15 of the device-side connector 10 is inserted between the outer wall 222a and the inner wall 222b, and the first harness-side seal 24 disposed between the outer wall 222a and the inner wall 222b can seal between the harness-side terminal holding portion 22 and the device-side terminal holding portion 15. In other words, the outside of the connection portion between the device-side terminal 12 held by the holding portion 151 and the harness-side terminal 21 held by the holding portion main body 222 of the harness-side terminal holding portion 22 can be sealed by the first harness-side seal 24.

In the device-side connector 10 constituting this connector connection structure 1, the device-side seal 14 attached to the insertion tube portion 153 of the device-side terminal holding portion 15 seals the gap between the insertion tube portion 153 of the device-side terminal holding portion 15 and the mounting base 11, thereby sealing the intrusion path of foreign matter from the outside of the device-side connector 10 toward the inside of the device housing 100.

In addition, in the harness side connector 20, the second harness side seal 26 seals between the wire harness 200 and the harness side terminal holding portion 22, and the third harness side seal 28 seals between the housing shell 23 and the harness side terminal holding portion 22. This seals the intrusion path of foreign matter from outside the harness side connector 20 toward the wire harness 200.

In the connector connection structure 1, which is configured by attaching an equipment side connector 10 and a harness side connector 20 that have sealed off the intrusion path of foreign matter, the outside of the connection part between the equipment side terminal 12 held in the holding part 151 and the harness side terminal 21 held in the holding part main body 222 of the harness side terminal holding part 22 is sealed with a first harness side seal 24 arranged between the outer wall 222a and the inner wall 222b.

Furthermore, in the boundary between the device side connector 10 and the harness side connector 20, which is an intrusion route for foreign matter from the outside to the inside of the connector connection structure 1, the fitting insertion portion 234 of the housing shell 23 of the harness side connector 20 is inserted into the fitting groove 115 of the mounting base 11 of the device side connector 10 on the outer side of the first harness side seal 24, so that it functions as a blocking portion that blocks the intrusion of foreign matter from the outside, blocking the intrusion route for foreign matter.

In addition, at the boundary between the device-side connector 10 and the harness-side connector 20, which is an entry path for foreign matter from the outside in the connector connection structure 1, when attaching the harness-side connector 20 to the device-side connector 10, the insertion of the fitting insertion portion 234 into the fitting groove 115 and the sealing by the first harness-side seal 24 between the harness-side terminal holding portion 22 and the device-side terminal holding portion 15 are performed in such a way that, as shown in FIG. 9(a), the insertion of the fitting insertion portion 234 into the fitting groove 115 is performed before the sealing by the first harness-side seal 24.

In more detail, when attaching the harness side connector 20 to the device side connector 10, as shown in FIG. 9(a), the fitting insertion portion 234 of the housing shell 23 of the harness side connector 20 is inserted into the fitting groove 115 of the mounting base 11 before the first harness side seal 24 arranged between the outer wall 222a and the inner wall 222b of the harness side terminal holding portion 22 abuts against the tip of the hood portion 152 of the device side terminal holding portion 15 of the device side connector 10. Therefore, with the fitting insertion portion 234 inserted into the fitting groove 115, the first harness side seal 24 abuts against the hood portion 152 to seal the gap between the harness side terminal holding portion 22 and the device side terminal holding portion 15.

Conversely, when the harness side connector 20 is removed from the device side connector 10, before the mating insertion portion 234 escapes from the mating groove 115, the first harness side seal 24 separates from the hood portion 152, and the seal between the harness side terminal holding portion 22 and the device side terminal holding portion 15 is released.

The above-mentioned connector connection structure 1 connects the harness side connector 20 including the harness side terminal 21 attached to the tip of the high-voltage wire 201, the harness side terminal holding portion 22 that holds the harness side terminal 21, and the housing shell 23 that accommodates the harness side terminal holding portion 22 that holds the harness side terminal 21, to the equipment side connector 10 including the equipment side terminal 12 to which the harness side terminal 21 is connected, the equipment side terminal holding portion 15 that holds the equipment side terminal 12, and the mounting base 11 to which the housing shell 23 is attached. In this connector connection structure 1, a fitting insertion portion 234 and a fitting groove 115 that block the intrusion of foreign matter from the boundary portion between the housing shell 23 and the mounting base 11 in a connected state in which the housing shell 23 is attached to the mounting base 11 are provided, and the fitting insertion portion 234 is inserted and fitted into the fitting groove 115, so that the intrusion of foreign matter from the boundary portion between the harness side connector 20 and the equipment side connector 10 can be suppressed during use.
Furthermore, even when the harness-side connector 20 is removed from the device-side connector 10, the engagement between the fitting insertion portion 234 and the fitting groove 115 can prevent foreign matter from entering the inside of each connector.

The mounting base 11 is provided with a fitting groove 115 into which the fitting insertion portion 234, which is the end portion of the rear side Db of the shell body 232, fits, so that by connecting the harness side connector 20 and the device side connector 10, the fitting insertion portion 234 fits into the fitting groove 115 provided in the mounting base 11. When the fitting insertion portion 234 fits into the fitting groove 115 provided in the mounting base 11 in this way, the creeping distance of the boundary portion becomes longer and a labyrinth structure is formed, which makes it possible to prevent the intrusion of foreign matter.

In addition, a first harness side seal 24 is provided at the boundary between the harness side terminal holding portion 22 and the device side terminal holding portion 15 in the above-mentioned connected state to seal the boundary, thereby preventing foreign matter from entering the connection portion between the harness side terminal 21 and the device side terminal 12.

In more detail, the fitting insertion portion 234 is prevented from entering the boundary between the housing shell 23, which surrounds the connection between the harness side terminal 21 and the device side terminal 12, and the device side terminal holding portion 15 by fitting the fitting insertion portion 234 into the fitting groove 115. Even if a foreign object enters beyond the fitting insertion portion 234 and the fitting groove 115, the boundary between the harness side terminal holding portion 22 and the device side terminal holding portion 15 is sealed with the first harness side seal 24, so that the foreign object can be prevented from entering the connection between the harness side terminal 21 and the device side terminal 12.

In addition, when the housing shell 23 is attached to the mounting base 11 and connected, the mating insertion portion 234 and the mating groove 115 are in a mated, blocked state before the first harness side seal 24 is sealed. Therefore, when the housing shell 23 is attached to the mounting base 11 and connected, the mating insertion portion 234 and the mating groove 115 are mated to block the boundary between the device side connector 10 and the harness side connector 20, and the boundary between the device side terminal holding portion 15 and the harness side terminal holding portion 22 can be sealed with the first harness side seal 24, so that it is possible to reliably prevent foreign matter from entering the connection between the device side terminal 12 and the harness side terminal 21.

In addition, the housing shell 23 and the mounting base 11 are made of metal, and the housing shell 23 and the mounting base 11 are provided with a connector fixing portion 233 and a fixing portion 112 that are electrically connected, so that the connector connection structure 1 that connects the device side terminal 12 and the harness side terminal 21 can provide an electromagnetic shielding function.

The housing shell 23 is formed by assembling the split components 31, 32, and the joint 33 that joins the split components 31, 32 is provided with a joint protrusion 34 and a joint recess 35 that seal the joint 33. This allows the harness side connector 20 to be formed by easily assembling the high-voltage wire 201 to which the harness side terminal holding portion 22 and the harness side terminal 21 are attached to the housing shell 23 formed by the split components 31, 32, and also prevents foreign matter from entering through the joint 33 between the split components 31, 32.

In addition, since a conductive connection portion 37 is provided that electrically connects the divided components 31, 32 to each other, the connector connection structure 1 that connects the device side terminal 12 and the harness side terminal 21 can provide an electromagnetic shielding function.

In the above-mentioned connector connection structure 1, when the harness side connector 20 is attached to the device side connector 10, the fitting insertion portion 234 of the housing shell 23 of the harness side connector 20 is inserted into the fitting groove 115 of the mounting base 11 before the first harness side seal 24 arranged between the outer wall 222a and the inner wall 222b of the harness side terminal holding portion 22 abuts against the tip of the hood portion 152 of the device side terminal holding portion 15 of the device side connector 10. However, as shown in FIG. 9(b), the fitting insertion portion 234 may be configured to be inserted into the fitting groove 115 after the tip of the hood portion 152 abuts against the first harness side seal 24.

Specifically, as shown in FIG. 9(b), the first harness side seal 24 is positioned closer to the opening side (lower side, i.e., the rear side Db in FIG. 9(b)) between the outer wall 222a and the inner wall 222b than the first harness side seal 24 in the connector connection structure 1 shown in FIG. 9(a).

As a result, when attaching the harness side connector 20 to the equipment side connector 10, the first harness side seal 24 arranged in the harness side terminal holding portion 22 abuts against the tip of the hood portion 152 of the equipment side terminal holding portion 15 of the equipment side connector 10 before the fitting insertion portion 234 of the housing shell 23 is inserted into the fitting groove 115 of the mounting base 11.

Therefore, the fitting insertion portion 234 is inserted into the fitting groove 115 with the first harness side seal 24 abutting against the hood portion 152 to seal the gap between the harness side terminal holding portion 22 and the device side terminal holding portion 15. Conversely, when removing the harness side connector 20 from the device side connector 10, even if the fitting insertion portion 234 escapes from the fitting groove 115, the first harness side seal 24 abuts against the hood portion 152 to seal the gap between the harness side terminal holding portion 22 and the device side terminal holding portion 15.

In this way, when the housing shell 23 is removed from the mounting base 11 from the connected state to release the connection, the blocking state caused by the engagement between the fitting insertion portion 234 and the fitting groove 115 is released before the sealing state of the first harness side seal 24 is released. In other words, even if the blocking state caused by the engagement between the fitting insertion portion 234 and the fitting groove 115 is released, the sealing state of the first harness side seal 24 is maintained. Therefore, it is possible to reliably prevent foreign matter from entering the connection portion between the device side terminal 12 and the harness side terminal 21. Therefore, it is possible to prevent foreign matter from entering the connection portion between the device side terminal 12 and the harness side terminal 21 when reconnecting the device side connector 10 and the harness side connector 20.

As described above, by shortening the projection of the fitting insertion portion 234 without changing the position of the first harness side seal 24, when attaching the harness side connector 20 to the equipment side connector 10, the first harness side seal 24 arranged in the harness side terminal holding portion 22 can be abutted against the tip of the hood portion 152 of the equipment side terminal holding portion 15 of the equipment side connector 10 before the fitting insertion portion 234 of the housing shell 23 is inserted into the fitting groove 115 of the mounting base 11, as described above.

In addition, in the above-mentioned connector connection structure 1, the fitting insertion portion 234 of the shell body 232 in the housing shell 23 is inserted into the fitting groove 115 provided in the mounting base 11 to block the boundary portion between the device side connector 10 and the harness side connector 20, which is a path for foreign matter to enter. However, as in the connector connection structure 1a shown in Figures 11 to 14, the boundary portion may be blocked by abutting the flange portion 40 provided on the shell body 232 against the abutment plane 116 of the mounting base 11, or further, a seal groove 41 may be provided in the flange portion 40, and the above-mentioned boundary portion may be sealed with a flange seal 42 attached to the seal groove 41.

FIG. 11 shows an explanatory diagram of a connector connection structure 1a according to another embodiment, FIGS. 12 and 13 show explanatory diagrams of the connector connection structure 1a in a separated state, and FIG. 14 shows an explanatory diagram in the form of a cross-sectional view of the connector connection structure 1a.
11(a) is a perspective view showing the front, right side and bottom of the connector connection structure 1a, and FIG. 11(b) is a perspective view showing the front, left side and plan of the connector connection structure 1a.

Figure 12 shows an explanatory diagram of a connector connection structure 1a in a separated state, as viewed from above Hu. In detail, the device-side connector 10a is shown in a perspective view showing the front, left side and top, while the harness-side connector 20a is shown in a perspective view showing the back, left side and top.

Figure 13 shows an explanatory diagram in an oblique view from below Hd of the connector connection structure 1a in a separated state. In detail, the equipment side connector 10a is shown in an oblique view showing the front, right side and bottom, and the harness side connector 20a is shown in an oblique view showing the back, right side and bottom.
14(a) shows a cross-sectional view taken along line AA in FIG. 11(a), and FIG. 14(b) shows a cross-sectional view taken along line BB in FIG. 11(a).

In the connector connection structure 1a shown in Figures 11 to 14, the same components as those in the connector connection structure 1 described above are given the same reference numerals and their description is omitted. The differences between the connector connection structure 1 and the connector connection structure 1a will be described below.

The mounting base 11a of the device-side connector 10a in the connector connection structure 1a does not have a fitting groove 115, unlike the mounting base 11 of the device-side connector 10, and the front surface of the mounting base 11a has an abutment plane 116 at a location facing the flange portion 40 provided on the shell body 232 of the harness-side connector 20a (described later) in the depth direction D.

In addition, unlike the harness side connector 20 in which the housing shell 23 is provided with a mating insertion portion 234 that is inserted into the mating groove 115, the harness side connector 20a in the connector connection structure 1a has a flange portion 40 that extends outward at the end of the shell body 232 on the mating opening 235 side, i.e., the end of the rear side Db. Unlike the harness side connector 20 in which the mating insertion portion 234 protrudes further toward the rear side Db than the connector fixing portion 233, the connector fixing portion 233 and the flange portion 40 are formed flush with each other.

The flange portion 40 is provided with a concave seal groove 41 outside the outer periphery of the fitting opening 235, and a flange seal 42 is fitted in the seal groove 41.
The flange seal 42 is a rubber ring having a cross-sectional diameter larger than the groove depth of the seal groove 41 .

The connector connection structure 1a configured by attaching the harness side connector 20a to the device side connector 10a configured as described above has a flange portion 40 of the housing shell 23 of the harness side connector 20a abutting against the abutment plane 116 of the mounting base 11a of the device side connector 10a in the depth direction D on the outer side of the first harness side seal 24 at the boundary between the device side connector 10a and the harness side connector 20a, which serves as an intrusion path for foreign matter to enter from the outside to the inside of the connector connection structure 1a. This functions as a blocking portion that blocks the intrusion of foreign matter from the outside, and can block the intrusion path for foreign matter.

Furthermore, the flange seal 42 attached to the seal groove 41 provided in the flange portion 40 is in close contact with the abutment plane 116, so it functions as a sealing portion that blocks the intrusion of foreign matter from the outside, thereby preventing a path for the intrusion of foreign matter.

In addition to the effects of the connector connection structure 1 described above, the connector connection structure 1a configured in this manner has a flange portion 40 having an opposing surface that faces the abutment plane 116 of the mounting base 11a at the end of the rear side Db of the shell body 232 that faces the mounting base 11a of the housing shell 23. Therefore, in the connected state, the abutment plane 116 of the mounting base 11a and the flange portion 40 face each other, increasing the creepage distance at the boundary portion and preventing the intrusion of foreign matter.

In addition, a seal groove 41 is provided in the flange portion 40, and a flange seal 42 is attached to the seal groove 41, so that the boundary portion can be sealed with the flange seal 42, preventing the intrusion of foreign matter.

In addition, instead of providing the seal groove 41 of the flange portion 40, the flange portion 40 and the abutment plane 116 may be opposed to each other to block the entry path of foreign matter at the boundary between the device side connector 10a and the harness side connector 20a. Furthermore, as shown in Figures 15 to 17, the side cover portion 43 protruding from the flange portion 40 to the rear side Db may cover the side portion 117 of the mounting base 11a to further block the entry path of foreign matter at the boundary between the device side connector 10a and the harness side connector 20b.

15 and 16 are explanatory views of a connector connection structure 1b according to still another embodiment, and FIG. 17 is an explanatory cross-sectional view of the connector connection structure 1b.
15(a) is a perspective view showing the front, right side and bottom of the connector connection structure 1b, and FIG. 15(b) is a perspective view showing the front, left side and top of the connector connection structure 1b.

16(a) is a perspective view showing the rear, right side and bottom of the harness side connector 20b, and FIG. 16(b) is a perspective view showing the rear, left side and top of the harness side connector 20a.
17(a) shows a cross-sectional view taken along line AA in FIG. 15(a), and FIG. 17(b) shows a cross-sectional view taken along line BB in FIG. 15(a).

The harness side connector 20b includes a side cover portion 43 that protrudes toward the rear side Db in the depth direction D from the outer peripheral edge of the flange portion 40 provided on the housing shell 23 of the harness side connector 20a described above.
The side cover portion 43 has a protruding height that is lower than the thickness of the mounting base 11 a that protrudes from the device housing 100 to the front side Df in the depth direction D.

The connector connection structure 1b, which is configured by attaching the harness side connector 20b configured in this manner to the device side connector 10a, functions as a blocking section that blocks the intrusion of foreign matter from the outside, and can block the path of intrusion of foreign matter, because the flange portion 40 of the housing shell 23 of the harness side connector 20b abuts against the abutment plane 116 of the mounting base 11a of the device side connector 10a in the depth direction D, just like the connector connection structure 1a.

Furthermore, the side cover portion 43 protruding from the outer peripheral edge of the flange portion 40 of the harness side connector 20b covers the side of the mounting base 11a, so in addition to the abutment between the flange portion 40 and the abutment plane 116, the blocking portion that blocks the intrusion of foreign matter from the outside is extended, and the intrusion path of foreign matter can be further blocked.

In addition to the effects of the connector connection structures 1 and 1a described above, the connector connection structure 1b configured in this manner has the following advantages: the mounting base 11a protrudes from other parts of the device housing 100, the mounting base 11a is provided with a housing shell 23 attached to it, the flange portion 40 faces the abutment plane 116 of the mounting base 11a, and the flange portion 40 is provided with a side cover portion 43 that covers the side portion 117 of the mounting base 11a, so that in the connected state the abutment plane 116 of the mounting base 11a faces the flange portion 40, and the side cover portion 43 provided on the flange portion 40 can cover the side portion 117 of the mounting base 11a. As a result, the creepage distance of the boundary portion is further increased, the boundary portion forms a labyrinth structure, and the intrusion of foreign matter can be further suppressed.

In the configuration and the embodiment of the present invention, the electric wire of the present invention corresponds to the high-voltage electric wire 201,
Similarly,
The harness side terminal corresponds to the harness side terminal 21,
The harness side terminal holding portion corresponds to the harness side terminal holding portion 22,
The harness side housing corresponds to the housing shell 23,
The harness side connectors correspond to the harness side connectors 20, 20a, and 20b,
The device side terminal corresponds to the device side terminal 12,
The device-side terminal holding portion corresponds to the device-side terminal holding portion 15,
The device side housing corresponds to the mounting bases 11 and 11a attached to the device housing 100.
The device side connector corresponds to the device side connectors 10 and 10a.
The connector connection structure corresponds to the connector connection structures 1, 1a, and 1b,
The blocking portion corresponds to the fitting insertion portion 234 and the fitting groove 115, the flange portion 40 and the abutting plane 116, and the side cover portion 43 and the side surface of the mounting base 11a.
The end corresponds to the end of the back side Db of the shell main body 232.
The fitting groove corresponds to the fitting groove 115,
The flange corresponds to the flange portion 40,
The seal groove corresponds to the seal groove 41.
The seal member corresponds to a flange seal 42,
The mounting base corresponds to the mounting bases 11 and 11a.
The side covering portion corresponds to the side covering portion 43,
The sealing portion corresponds to the first harness side seal 24,
The divided housings correspond to an upper divided component 31 and a lower divided component 32,
The joint portion corresponds to joint 33,
The case interrupting portion corresponds to the joint protrusion 34 and the joint recess 35,
The connecting conductive connector corresponds to the conductive connector 37,
Although the conductive connection portion corresponds to the connector fixing portion 233 and the fixing portion 112, this invention is not limited to the configuration of the above-mentioned embodiment, but can be applied based on the technical ideas shown in the claims, and many embodiments can be obtained.

For example, in the above description, the fitting groove 115 provided in the mounting base 11 of the device side connector 10 is inserted and fitted into the fitting insertion portion 234 of the housing shell 23 of the harness side connector 20 to block the entry path of foreign matter at the boundary between the device side connector 10 and the harness side connector 20. However, a convex portion instead of the fitting insertion portion 234 may be provided on the device housing 100 or the mounting base 11, and a fitting groove into which the convex portion is fitted and inserted may be provided on the flange portion 40 of the harness side connector 20a instead of the seal groove 41, and in the connected state, the convex portion provided on the device housing 100 or the mounting base 11 may be fitted and inserted into the fitting groove provided in the flange portion 40 of the harness side connector 20a to block the boundary between the device side connector 10 and the harness side connector 20a.

Furthermore, a fitting groove may be provided in place of the seal groove 41 in the flange portion 40 of the harness side connector 20a, and a ring body may be provided that fits across both the fitting groove provided in the flange portion 40 and the fitting groove 115 in the connected state, thereby blocking the boundary between the device side connector 10 and the harness side connector 20a.

In addition, although the above-mentioned connector connection structure 1 has an engagement groove 115 in the mounting base 11, it is also possible to provide an engagement groove 115 in the equipment housing 100 without providing a mounting base 11, and to insert and engage the engagement insertion portion 234 of the harness side connector 20 into the engagement groove 115 provided in the equipment housing 100 to block the boundary between the equipment side connector 10 and the harness side connector 20.
Also, a seal member may be attached along the fitting insertion portion 234 in the above-described connector connection structure 1 so as to provide a seal when fitted and inserted into the fitting groove 115 .

DESCRIPTION OF SYMBOLS 1, 1a, 1b...Connector connection structure 10, 10a...Equipment side connector 11, 11a...Mounting base 12...Equipment side terminal 15...Equipment side terminal holding portion 20, 20a, 20b...Harness side connector 21...Harness side terminal 22...Harness side terminal holding portion 23...Housing shell 24...First harness side seal 31...Upper divided body 32...Lower divided body 33...Joint portion 34...Joint convex portion 35...Joint concave portion 37...Conductive connection portion 40...Flange portion 41...Seal groove 42...Flange seal 43...Side cover portion 100...Equipment housing 112...Fixed portion 115...Fitting groove 201...High voltage wire 232...Shell body 233...Connector fixing portion 234...Fitting insertion portion

Claims (9)

a harness-side connector including a harness-side terminal attached to a tip of an electric wire, a harness-side terminal holding portion that holds the harness-side terminal, and a harness-side housing that houses the harness-side terminal holding portion that holds the harness-side terminal;
A connector connection structure for connecting an equipment side connector including an equipment side terminal to which the harness side terminal is connected, an equipment side terminal holding portion for holding the equipment side terminal, and an equipment side housing to which the harness side housing is attached,
a fitting groove is provided in one of the device-side housing and the harness-side housing, into which an end portion of the other housing is fitted;
a blocking portion is provided at a boundary between the harness-side housing and the device-side housing in a connected state in which the harness-side housing is attached to the device-side housing, the blocking portion blocking intrusion of foreign matter from the boundary,
the blocking section is configured such that, in the connected state, the opposing end portion of the other of the device-side housing and the harness-side housing is inserted into and fitted into the fitting groove, thereby blocking intrusion of foreign matter from the boundary portion between the harness-side housing and the device-side housing,
a sealing portion that seals a boundary portion between the harness side terminal holding portion and the device side terminal holding portion, the sealing portion being provided on an inner side of the interrupting portion in the connected state;
the sealing portion is provided on the harness-side terminal holding portion and is configured to come into contact with and seal the device-side terminal holding portion in the connected state,
When the harness side housing is attached and connected to the device side housing,
Before the sealing portion provided on the harness-side terminal holding portion comes into contact with the device-side terminal holding portion to form a sealing state, the opposing end portion of the other of the device-side housing and the harness-side housing is inserted into the fitting groove and fitted thereto, thereby forming a blocking state in which intrusion of foreign matter is blocked from the boundary portion between the harness-side housing and the device-side housing.
Connector connection structure. When the harness-side housing is detached from the device-side housing from the connected state to release the connection,
The connector connection structure according to claim 1, wherein the opposing end of the other of the device side housing and the harness side housing escapes from the fitting groove and the interrupting state of the interrupting portion is released before the sealing portion provided on the harness side terminal holding portion separates from the harness side housing and the sealed state is released . a flange portion having a surface facing the device-side housing is provided at an end of the harness-side housing facing the device-side housing,
The connector connection structure according to claim 1 or 2, wherein the interrupter portion includes the flange portion and the device side housing. The flange portion is provided with a seal groove,
4. The connector connection structure according to claim 3, wherein a seal member is fitted in said seal groove. The device side housing has
a mounting base is provided, the mounting base protruding from other portions of the device-side housing and to which the harness-side housing is attached;
The flange portion faces an opposing surface of the mounting base,
5. The connector connection structure according to claim 3, wherein the flange portion is provided with side covering portions which cover sides of the mounting base. the harness-side housing and the device-side housing are made of metal,
6. The connector connection structure according to claim 1 , wherein the harness-side housing and the device-side housing are provided with a conductive connection portion for electrically connecting the harness-side housing and the device-side housing. The harness side housing is configured by assembling a plurality of divided housings,
6. A connector connection structure according to claim 1 , wherein a housing shielding portion is provided at a joint between the divided housings to seal the joint. the harness-side housing and the device-side housing are made of metal,
The harness side housing and the device side housing are provided with conductive connection parts capable of conducting electricity,
8. The connector connection structure according to claim 7 , wherein the split housings are provided with conductive connecting parts that electrically connect the split housings to each other. A harness side terminal attached to the tip of the electric wire;
a harness-side terminal holding portion that holds the harness-side terminal;
a harness side housing that houses the harness side terminal holding portion that holds the harness side terminal,
a harness-side connector to be connected to an equipment-side connector, the equipment-side connector including an equipment-side terminal holding portion for holding an equipment-side terminal to be connected to the harness-side terminal, and an equipment-side housing to which the harness-side housing is attached,
a blocking section is provided to block intrusion of foreign matter from a boundary between the harness-side housing and the device-side housing in a connected state in which the harness-side housing is attached to the device-side housing,
an end portion of the harness-side housing that fits into a fitting groove provided in the device-side housing in the connected state functions as the blocking portion that blocks intrusion of foreign matter from a boundary portion between the harness-side housing and the device-side housing,
a sealing portion that seals a boundary portion between the harness side terminal holding portion and the device side terminal holding portion on an inner side of the interrupting portion in the connected state,
the sealing portion is configured to contact and seal the device-side terminal holding portion in the connected state,
When the harness side housing is attached and connected to the device side housing,
Before the sealing portion comes into contact with the device-side terminal holding portion to form a sealed state, the end portion is inserted into the fitting groove and fitted therein, thereby forming a blocking state in which intrusion of foreign matter is blocked from the boundary portion between the harness-side housing and the device-side housing.
Harness side connector.

Images