Electric connection box and wire harness

In an electric connection box and a wire harness, a side cover is attached to an outer peripheral surface of a housing, and the housing and the side cover form a side space portion. An electric wire extends from an internal space portion to the side space portion and is routed to the outside of the housing through the side space portion. In the electric wire, an electric wire main body is formed along an inclined direction of an inclined wall of the side cover. A regulating portion is formed along the inclined direction of the inclined wall in the housing in the side space portion. A gap between the electric wire and the housing is filled with the regulating portion. In the side space portion, the electric wire main body is positioned between the inclined wall of the side cover and the regulating portion.

CROSS-REFERENCE TO RELATED APPLICATION(S)

The present application claims priority to and incorporates by reference the entire contents of Japanese Patent Application No. 2017-087968 filed in Japan on Apr. 27, 2017.

BACKGROUND OF THE INVENTION

1. Field of the Invention

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

2. Description of the Related Art

There is an electric connection box (also referred to as junction box, fuse box, relay box, and the like) which is mounted on a vehicle body and collectively houses various electric components and electric component modules such as a component for connection processing such as a wire harness and an electric component such as a fuse, a relay, an electronic control unit in an internal space portion. The electric connection box is provided in a space such as an engine room of the vehicle body, for example (Japanese Patent Application Laid-open No. 2014-3880, Japanese Patent Application Laid-open No. 2010-41778).

Some of the electric connection boxes have an electric wire to supply power from the outside of a housing to the electric components housed in the internal space portion and a stud bolt. The stud bolt is provided in the internal space portion and is electrically connected to the electric components housed in the internal space portion. A terminal having a through-hole is crimped to at least one end portion of the electric wire. The electric wire is fastened to the stud bolt by making the stud bolt pass through the through-hole of the terminal and screwing a nut to the stud bolt. That is, in the electric connection box, the electric wire supplies power from the outside of the housing to the electric components in the internal space portion via the stud bolt.

In the electric connection box, a side cover is attached adjacent to a position in an outer peripheral surface of the housing where the stud bolt is provided, and a side space portion is formed by the housing and the side cover. The side space portion communicates with the outside of the housing through an opening formed in a lower side end portion. Accordingly, the electric wire extends from the internal space portion where the stud bolt is provided to the side space portion on the outer peripheral side of the housing, passes through the side space portion, and is routed to the outside of the housing through the opening.

The electric connection box is attached at a position adjacent to a member on the vehicle body side when being attached to the vehicle body side. Therefore, the electric connection box is attached to the vehicle body side in a state where the electric wire avoids the member on the vehicle body side. Therefore, the electric wire which has been previously extended downward in the side space portion and been inclined in a direction separating from the housing is fastened to the stud bolt.

However, at the time when the electric wire is fastened to the stud bolt, in the electric connection box, the electric wire may be deformed to approach the housing during a rotation movement of a nut caused by screwing the nut to the bolt in a state where the nut comes into contact with the terminal. Measures against the deformation have been desired. Furthermore, in the electric connection box, a gap is formed between the outer peripheral surface of the housing and the electric wire by fastening the electric wire which extends downward and is inclined to be separated from the housing to the stud bolt. Therefore, in order to prevent the liquid adhered to the electric connection box from entering the gap between the outer peripheral surface of the housing and the electric wire and adhering to the terminal of the electric wire and the like, it is desired to fill the gap.

SUMMARY OF THE INVENTION

The present invention has been made in view of the above. An object of the present invention is to provide an electric connection box and a wire harness capable of preventing an approach of an electric wire to a housing and improving waterproof property.

An electric connection box according to one aspect of the present invention includes a housing configured to include an internal space portion in which a plurality of electric components is housed; a side cover configured to be attached to an outer peripheral surface of the housing and have an inclined wall which extends downward and is formed to be inclined in a direction separating from the housing; a side space portion configured to be formed by the housing and the side cover; a fastening member configured to be provided in the internal space portion and be electrically connected to the plurality of electric components; and an electric wire configured to supply power from an outside of the housing to the plurality of electric components via the fastening member, wherein the electric wire includes: a terminal which is electrically connected to the fastening member, extends from the internal space portion toward the side space portion, is bent in the side space portion, and is formed to extend downward; and an electric wire main body of which a part including at least an end portion is positioned in the side space portion and of which the end portion is crimped to the terminal, the side space portion communicates with the outside of the housing through an opening formed in a lower side end portion, the electric wire main body is arranged along an inclined direction of the inclined wall in the side space portion and projects and extends from the side space portion to the outside of the housing through the opening in a state where the fastening member passes through a through-hole formed in the terminal, the housing includes a regulating portion positioned in the side space portion, and the regulating portion projects from the outer peripheral surface and is formed to extend along the inclined direction of the inclined wall.

A wire harness according to another aspect of the present invention includes an electric connection box configured to include a housing which includes an internal space portion in which a plurality of electric components is housed, a side cover which is attached to an outer peripheral surface of the housing and has an inclined wall which extends downward and is formed to be inclined in a direction separating from the housing, a side space portion which is formed by the housing and the side cover, and a fastening member which is provided in the internal space portion and is electrically connected to the plurality of electric components; and an electric wire configured to include a terminal which is electrically connected to the fastening member, extends from the internal space portion toward the side space portion, is bent in the side space portion, and is formed to extend downward and an electric wire main body of which a part including at least an end portion is positioned in the side space portion and of which the end portion is crimped to the terminal, and to supply power from an outside of the housing to the plurality of electric components via the fastening member, wherein the side space portion communicates with the outside of the housing through an opening formed in a lower side end portion, the electric wire main body is arranged along an inclined direction of the inclined wall in the side space portion and projects and extends from the side space portion to the outside of the housing through the opening in a state where the fastening member passes through a through-hole formed in the terminal, the housing includes a regulating portion positioned in the side space portion, and the regulating portion projects from the outer peripheral surface and is formed to extend along the inclined direction of the inclined wall.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

An embodiment of an electric connection box and a wire harness according to the present invention is described in detail below with reference to the drawings. The present invention is not limited to the following embodiment. Furthermore, components in the following embodiment include those at which a person skilled in the art can easily arrived or those substantially the same. In addition, various omissions, replacements, and changes can be made to the components in the embodiment without departing from the scope of the invention.

Embodiment

First, an electric connection box and a wire harness according to an embodiment are described.FIG. 1is a perspective view of the electric connection box and the wire harness according to the embodiment.FIG. 2is an exploded perspective view of the electric connection box and the wire harness according to the embodiment.FIG. 3is a partially enlarged view of the exploded perspective view of the electric connection box and the wire harness according to the embodiment.FIG. 4is a partially enlarged view of a cross-sectional view of the electric connection box and the wire harness according to the embodiment.FIG. 2is a view of a state where an electric wire is detached from the electric connection box.FIGS. 3 and 4are views of a state where an upper cover is detached from the electric connection box. The X direction in each figure indicates the width direction of the electric connection box. The Y direction in each figure indicates the depth direction of the electric connection box and is perpendicular to the width direction. The Z direction in each figure indicates the height direction of the electric connection box, and is perpendicular to the width direction and the depth direction. Furthermore, the Z direction is the vertical direction.

An electric connection box1according to the present embodiment is mounted on a vehicle body of a vehicle such as an automobile and distributes power supplied from a power source such as a battery to various electric devices mounted on the vehicle body via various electric components and the like. As illustrated inFIGS. 1 to 3, the electric connection box1is incorporated in a wire harness WH and collectively houses electric components100such as a connector, a fuse, a relay, a branching part, an electronic control unit which configure components for connection processing such as an electric wire. The electric connection box1according to the present embodiment is provided in a place exposed to an external environment such as an engine room of the vehicle body and is connected between the power source such as the battery and the various electric devices mounted on the vehicle body. The electric connection box1is also referred to as a junction box, a fuse box, a relay box, or the like in some cases. However, in the present embodiment, these are collectively referred to as an electric connection box. As illustrated inFIGS. 1 to 4, the electric connection box1includes a box body3, an upper cover4, a lower cover5as a housing2. Furthermore, the electric connection box1includes a fastening member S, a side cover6, a side space portion P, an electric wire7, and a regulating portion R.

The housing2houses the plurality of electric components100in an internal space portion2aformed in the housing2. The housing2is formed in a box shape and is formed of an insulating synthetic resin, and includes the box body3, the upper cover4, and the lower cover5. The housing2is formed by stacking the lower cover5, the box body3, and the upper cover4in this order from the lower side. Each of the box body3, the upper cover4, and the lower cover5has locking mechanisms. By engaging the locking mechanisms with each other, the box body3and the upper cover4are locked to each other, and the box body3and the lower cover5are locked to each other. The housing2is attached to the vehicle body side in a state where the stacking direction of the lower cover5, the box body3, and the upper cover4coincides with the vertical direction. A vehicle body attaching part provided on the outer side of the housing2according to the present embodiment is brought into contact with a vehicle body side, for example, an attaching panel on the vehicle body side and the vehicle attaching part is fastened to the vehicle body side with a fastening member such as a bolt so that the housing2according to the present embodiment is provided in the vehicle body.

In a case where the electric connection box1is viewed from the vertical direction in a state where the electric connection box1is provided in the vehicle body side, the box body3is formed to have a substantially rectangular outer peripheral shape. The box body3has an internal space portion3a.The internal space portion3aforms a part of the internal space portion2aof the housing2. In the box body3, a lower side opening31is formed in a lower end portion, and an upper side opening32is formed in an upper end portion. The box body3is formed in a hollow shape, and the lower side opening31communicates with the upper side opening32through the internal space portion3ain the vertical direction. In the box body3, a peripheral wall33forming the internal space portion3ahas a double wall structure including an outer wall33aand an inner wall33b.A gap is formed between the outer wall33aand the inner wall33b.

In the box body3, the fastening member S is provided in the internal space portion3a.In the box body3, in a portion adjacent to the position where the fastening member S is provided, a part of the peripheral wall33, that is, a part of the outer wall33aand the inner wall33bis cut along the depth direction. An outer peripheral surface33cof the box body3is formed at a position recessed toward the internal space portion3a,between both end portions33dfacing to each other in the depth direction, where the outer wall33aand the inner wall33bare cut. In the box body3, at the both end portions33dwhere the outer wall33aand the inner wall33bare cut, a gap between the outer wall33aand the inner wall33bat each end portion33dis closed with the outer peripheral surface33cwhich extends in the width direction and the vertical direction. That is, in the box body3, as viewed from the vertical direction, one side of the outer peripheral surface33cis opened and recessed toward the internal space portion3ain a rectangular shape between the both end portions33dfacing to each other in the depth direction and in a part where the outer wall33aand the inner wall33bare cut. In the box body3, locking portions34to lock the side cover6are respectively formed at the both end portions33dof the outer wall33a.In the locking portions34, as viewed from the width direction and the depth direction, a locking plate projected from the outer peripheral surface33cis formed to extend upward.

Here, the fastening member S according to the present embodiment is a stud bolt S. The stud bolt S electrically connects electric components outside (vehicle body side) the housing2with the electric components100housed in the internal space portion2a.For example, to supply power to each electric component100, the stud bolt S is electrically connected to a conductor such as a bus bar which is electrically connected to each electric component100. For example, in a case where power is supplied from the power source on the vehicle body side, the power is transmitted at one position with the stud bolt S, and the power can be distributed and supplied to each electric component100via the stud bolt S. The stud bolt S is attached to an attaching member and the like for the stud bolt S coupled to an inner peripheral surface of the peripheral wall33, and is provided in the internal space portion3a,that is, the internal space portion2aof the housing2, in a state of being erected upward. The stud bolt S has a thread groove formed on the outer periphery thereof. After the stud bolt S is inserted into a terminal71of the electric wire7to be described later, a nut N is inserted and screwed to the stud bolt S to fasten the terminal71.

The upper cover4closes the upper side opening32of the box body3. As viewed from the vertical direction, the upper cover4is formed to have the same outer peripheral shape as the box body3(including substantially the same). The upper cover4has an internal space portion4a.The internal space portion4aforms a part of the internal space portion2aof the housing2. The upper cover4has a lower side opening41communicating with the internal space portion4aof the upper cover4, and is formed in a lid shape. The upper cover4has a peripheral wall42, which forms the internal space portion4a,having a double wall structure including an outer wall and an inner wall. In a state where the upper cover4is attached to the box body3, the inner wall of the upper cover4is inserted into the gap between the outer wall33aand the inner wall33bof the box body3, and the outer wall of the upper cover4is positioned outside the outer wall33aof the box body3. That is, in a state where the upper cover4is attached to the box body3, the outer wall and the inner wall of the upper cover4and the outer wall33aand the inner wall33bof the box body3are alternately arranged outward of the housing2and form a waterproof structure.

The lower cover5closes the lower side opening31of the box body3. As viewed from the vertical direction, the lower cover5is formed to have the same outer peripheral shape as the box body3(including substantially the same). The lower cover5has an internal space portion5a.The internal space portion5aforms a part of the internal space portion2aof the housing2. That is, the internal space portion2aof the housing2includes the internal space portion3aof the box body3, the internal space portion4aof the upper cover4, and the internal space portion5aof the lower cover5. The lower cover5has an upper side opening51communicating with the internal space portion5aof the lower cover5, and is formed in a plate-like shape. A drain hole which is not shown is formed in a bottom portion52of the lower cover5. To cope with a case where liquid enters the internal space portion2aof the housing2, the drain hole discharges the liquid which has moved to the bottom portion52through a drain path which is not shown formed in the housing2to the outside of the housing2.

The side cover6is attached to the housing2and forms the side space portion P to be described later so as to suppress an application of a load from outside to the electric wire7. The side cover6is attached to the outer peripheral surface33cof the box body3. The side cover6is attached so as to close a space, where the outer wall33aand the inner wall33bof the box body3are cut, between the both end portions33dfacing to each other in the depth direction along the depth direction. In a state where the side cover6is attached to the outer peripheral surface33c,an inner surface61positioned on the side of the internal space portion3afaces to the outer peripheral surface33cbetween the both end portions33din the width direction. The side cover6is formed of an insulating synthetic resin. The side cover6has a main body portion62and an inclined wall63.

The main body portion62is formed in a substantially rectangular shape as viewed from the width direction and the depth direction, and is formed to vertically extend along the downward direction. The main body portion62has locking portions65, formed in a frame shape as viewed from the vertical direction, on the outer surface64facing to the inner surface61. When the side cover6is attached to the box body3, the locking portions65lock the side cover6to the box body3by inserting the locking portions34of the box body3into the locking portions65to engage the locking portions with each other.

The inclined wall63is formed to be inclined so as to regulate deformation of the electric wire7outward of the housing2and to secure a gap between the electric wire7and the housing2. The inclined wall63is formed to project from the lower end portion of the main body portion62. The main body portion62and the inclined wall63are continuously and integrally formed. The inclined wall63extends downward and is formed to be inclined in a direction separating from the box body3. In a state where the side cover6is attached to the box body3, as viewed from the depth direction, the lower end portion of the inclined wall63is positioned at the height equal to the bottom portion52of the lower cover5, that is, the bottom portion of the housing2in the vertical direction.

The side space portion P is a space portion formed by the housing2and the side cover6. The side space portion P is a space portion formed by the outer peripheral surface33cof the box body3and the inner surface61of the side cover6. The side space portion P is formed in a cylindrical shape along the vertical direction in a region formed by the main body portion62and the box body3. The side space portion P is formed along an inclined direction of the inclined wall63in a region formed by the inclined wall63and the box body3. That is, the side space portion P extends downward and is formed so that a cross-sectional area positioned on a plane formed in the width direction and the depth direction increases in a direction toward the outside of the housing2. In the side space portion P, openings are formed in the upper side end portion and the lower side end portion. The opening on the upper side is closed by the upper cover4. The side space portion P communicates with the outside of the housing2through the opening P1on the lower side. The opening P1in the lower side end portion of the side space portion P is an opening through which the electric wire7routed in the side space portion P projects to the outside. Furthermore, since the side space portion P is formed along the inclined direction of the inclined wall63, an opening area of the opening P1in the lower side end portion is larger than that of the opening in the upper side end portion.

The electric wire7supplies power to the plurality of electric components100from electric components outside the housing2, such as a battery mounted on the vehicle body, via the stud bolt S. The electric wire7has the terminal71and an electric wire main body72.

The terminal71according to the present embodiment is a metallic LA terminal. The terminal71is electrically connected to the stud bolt S. The terminal71is a plate-like member, and is formed to extend in a substantially rectangular shape having long sides. The terminal71has a through-hole71aat one end portion in the extending direction. The through-hole71ais a hole through which the stud bolt S passes. The terminal71has a crimping portion71bon the other end portion side in the extending direction. Regarding the crimping portion71b,both end portions in the direction perpendicular to the extending direction, that is, the short side direction project in the horizontal direction and is deformed to surround and hold the outer periphery of the electric wire main body72placed on the terminal71. The terminal71is bent between the through-hole71aand the crimping portion71bin the extending direction. That is, in a state where the terminal71is fastened to the stud bolt S, the terminal71is formed to extend from the internal space portion2aof the housing2, where the stud bolt S is provided, toward the side space portion P, be bent in the side space portion P, and then, extend downward. In a state where the terminal71is fastened to the stud bolt S, the terminal71is bent as described above. Therefore, the surface on which the electric wire main body72is placed faces to the side cover6.

The electric wire main body72has conductivity and electrically connects the power outside the housing2, that is, the electric components such as the power source on the vehicle body side to the terminal71. The electric wire main body72is formed by bundling a plurality of conducting wires and covering the outer periphery of the conducting wires in a bundled state with an insulator. A part of the electric wire main body72including at least an end portion72ais positioned in the side space portion P. At the end portion72aof the electric wire main body72, the conducting wire is exposed to the outside of the insulator, and the terminal71is crimped to the conducting wire. In a state where the stud bolt S passes through the through-hole71aformed in the terminal71crimped to the end portion72a,the electric wire main body72is arranged along the inclined direction of the inclined wall63of the side cover6in the side space portion P. That is, as the electric wire main body72extends downward in the side space portion P, clearance between the electric wire main body72and the box body3increases. The electric wire main body72has contact with the inner surface61of the inclined wall63. The electric wire main body72projects and extends from the side space portion P to the outside of the housing2through the opening P1in the lower side end portion of the side space portion P.

The regulating portion R is formed at a position in the side space portion P in the housing2. The regulating portion R is formed to project from the outer peripheral surface33cof the box body3positioned in the side space portion P and extend along the inclined direction of the inclined wall63. The regulating portion R is formed to project from the outer peripheral surface33c,extend along the width direction toward the side of the side cover6, be bent downward, and then, extend along the inclined direction of the inclined wall63. The regulating portion R is integrally formed with the box body3. The regulating portion R is positioned between the electric wire7and the housing2in the side space portion P. In the regulating portion R, an outer surface R1positioned on the side of the side cover6faces to the electric wire7and substantially comes into contact with the electric wire main body72. That is, the electric wire main body72comes into contact with the side cover6and the regulating portion R and is sandwiched between the side cover6and the regulating portion R. Furthermore, an inner surface R2facing to the outer surface R1faces to the outer peripheral surface33c.The regulating portion R is formed in a rectangular shape having one side along the depth direction as viewed from the vertical direction, and is formed in a flat plate shape as viewed from the depth direction.

Next, an assembling procedure of the electric connection box1according to the present embodiment is described. First, a worker assembles electric wires which are not shown and a bus bar connected to the stud bolt S into a sub block housed in the internal space portion3aof the box body3to form a sub harness. Next, the worker inserts the sub harness including the sub block into the internal space portion3afrom the lower side of the box body3and fixes the inserted sub block by engaging the sub block with a block attaching member of the box body3and the like. Next, the worker mounts the electric components100on each block from the upper side of the box body3, and electrically connects the electric components100to the electric wire which is not shown. Next, the worker attaches the stud bolt S to an attaching member for the stud bolt S provided in the internal space portion3aof the box body3.

Next, the worker places the end portion72aof the electric wire main body72, of which the conducting wire is exposed by peeling a covering member, on the terminal71. Next, the worker bends the terminal71at a substantially right angle between the through-hole71aand the crimping portion71bin the extending direction of the terminal71by using a jig. The bending direction of the terminal71is a direction in which the surface on which the electric wire main body72is placed faces to the side cover6in a state where the electric wire7is fastened to the stud bolt S. Next, the worker deforms the crimping portion71bso as to surround the end portion72aof the electric wire main body72by using a jig, and crimps the terminal71to the electric wire main body72. Next, the worker applies an external force to the electric wire main body72in a direction in which the electric wire main body72separates from the surface of the terminal71on which the electric wire main body72has been placed with a crimping position with the terminal71as a fulcrum to deform the electric wire main body72. By deforming the electric wire main body72in the direction in which the electric wire main body72separates from the terminal71, the electric wire main body72is deformed to be inclined along the inclined direction of the inclined wall63in the side space portion P in a state where the stud bolt S passes through the through-hole71aof the terminal71to be described later.

Next, the worker makes the stud bolt S pass through the through-hole71aformed in the terminal71. At this time, the electric wire main body72is positioned on the outer side of the housing2from the outer surface R1of the regulating portion R. Next, the worker inserts the stud bolt S into a through-hole which has been formed in the nut N and has a thread groove in an inner peripheral surface thereof and rotates the nut N to screw the nut N to the stud bolt S. The worker continues to screw the nut N to the stud bolt S so that the nut N comes into contact with the terminal71. In addition, when the worker rotates the nut N in a state where the nut N comes into contact with the terminal71, depending of the electric wire7, the electric wire main body72is likely to deform to approach the housing2. Even if the electric wire main body72deforms to approach the housing2, the electric wire main body72comes into contact with the outer surface R1of the regulating portion R. Therefore, the approach of the electric wire main body72to the housing2is regulated. When the worker cannot screw the nut N to the stud bolt S any more, the nut N and the terminal71are both fastened to the stud bolt S.

Next, the worker attaches the side cover6to the outer peripheral surface33cof the housing2. The worker engages the locking portions65formed on the side cover6with the respective locking portions34formed on the outer peripheral surface33cof the box body3and locks the side cover6to the box body3. Next, the worker attaches the lower cover5to the lower side opening31of the box body3, and attaches the upper cover4to the upper side opening32of the box body3. With the above procedure, the assembly of the electric connection box1is completed. Then, the worker attaches the electric connection box1to the vehicle body side in a state where the lower cover5is provided on the lower side, brings the vehicle body attaching part provided outside the housing2into contact with the vehicle body side, and fastens the vehicle body attaching part to the vehicle body side with the fastening member such as a bolt.

Next, regarding the electric connection box1according to the present embodiment, a flow of liquid in a case where the liquid (for example, water used for cleaning) collides against the housing2from outside is described with reference toFIG. 4. Normally, when the liquid from the upper side collides with the housing2, the liquid is prevented from entering the internal space portion2aby a waterproof structure formed in the upper cover4and the box body3. For example, in a state where the electric connection box1is attached to the vehicle body side, there is a case where the liquid from the lower side collides with the housing2and enters the side space portion P. The liquid which has entered the side space portion P moves upward between the housing2and the electric wire main body72(Q1). The liquid which has moved upward in the side space portion P collides with the inner surface R2of the regulating portion R. The upward movement of the liquid is regulated by the inner surface R2, and the moving direction is changed to the downward direction (Q2). The liquid which has moved downward is discharged to the outside of the housing2from the opening P1in the lower side end portion of the side space portion P.

As described above, in the electric connection box1according to the present embodiment, the side cover6and the housing2form the side space portion P. The side cover6has the inclined wall63which extends downward and is inclined in a direction separating from the housing2. Therefore, the side space portion P extends downward and is formed to be expanded outward of the housing2. The regulating portion R is formed to project from the outer peripheral surface33cof the box body3positioned in the side space portion P and is formed to extend along the inclined direction of the inclined wall63in the side space portion P. Therefore, in the electric connection box1, when the electric wire7is fastened to the stud bolt S, that is, in a state where the stud bolt S passes through the through-hole71aof the terminal71and the nut N comes into contact with the terminal71and when the nut N is screwed to rotate, even if the electric wire main body72is deformed to approach the housing2, the electric wire main body72comes into contact with the outer surface R1of the regulating portion R. Therefore, the approach of the electric wire7to the housing2can be prevented. Furthermore, after the stud bolt S has been fastened to the nut N, for example, even in a case where the external force is applied to the electric wire main body72to approach to the housing2during an operation to attach the electric connection box1to the vehicle body side, the electric wire main body72comes into contact with the outer surface R1of the regulating portion R. Therefore, the electric connection box1can prevent the approach of the electric wire7to the housing2by the regulating portion R.

Furthermore, in the electric connection box1, a gap is formed between the housing2and the electric wire7by forming the electric wire main body72along the inclined direction of the inclined wall63. In a case where liquid enters the gap, the regulating portion R is formed to extend along the inclined direction of the inclined wall63and fill the gap between the housing2and the electric wire7so that upward movement of the liquid is regulated by the inner surface R2of the regulating portion R. Therefore, even in a case where the liquid enters the side space portion P, the liquid is prevented from adhering to the terminal71and entering the internal space portion2a.That is, the electric connection box1has the waterproof structure between components forming the housing2. In addition, the waterproof property of the electric connection box1can be improved because the regulating portion R to regulate the entrance of the liquid to the gap formed to route the electric wire7is formed, and for example, measures against the entrance of the liquid from the lower side are taken.

Since the wire harness WH described above includes the electric connection box1, the wire harness WH can prevent the approach of the electric wire7to the housing2and improve the waterproof property.

An electric connection box and a wire harness according to the present embodiments can prevent an approach of an electric wire to a housing and improve waterproof property since a regulating portion is formed to project from an outer peripheral surface of the housing and extend along an inclined direction of an inclined wall of a side cover.