JP7100445B2 - Housing, electrical junction box, and wire harness - Google Patents

Description

The present invention relates to a housing, an electrical junction box, and a wire harness.

As a housing of a conventional electric junction box applied to a wire harness mounted on a vehicle or the like, for example, Patent Document 1 discloses a case including a case body and a cover. The case body has a peripheral wall and an opening surrounded by the edge of the peripheral wall. The cover is attached to the case body so as to cover the opening. In this case, a protrusion is provided on one end side of the cover, and a lock portion is provided on the other end side of the cover. Further, the case is provided with a protrusion engaging portion having a protrusion insertion hole on one end side of the case body, and a lock receiving portion for locking the lock portion on the other end side of the case body.

Japanese Unexamined Patent Publication No. 2014-143877

By the way, in the case described in Patent Document 1 described above, the protrusion is passed through the protrusion insertion hole from the lock receiving portion side, and the cover is rotated around the protrusion so that the lock portion is locked to the lock receiving portion. The cover is attached to the case body. In this case, the case has room for further improvement in terms of improving the assembling property of each part, for example.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a housing, an electrical junction box, and a wire harness that can improve assembling property.

In order to achieve the above object, the housing according to the present invention has a housing body having an opening, a lid member for closing the opening, and a lid member for the housing body. The housing body and the lid member are locked by the rotation base end locking mechanism that rotatably locks around the rotation axis along the direction and the rotation base end locking mechanism. In this state, the side wall portion of the lid member extends along the direction intersecting the axial direction in the lid member with respect to the side wall portion of the main body extending along the direction intersecting the axial direction in the housing body. The side wall locking mechanism is provided with a side wall locking mechanism that rotatably locks the main body, and the side wall locking mechanism includes a main body locking surface provided on the main body side wall side and a lid member provided on the lid member side wall side. The locking surface and one of the main body locking surface and the lid member locking surface are positioned on the opposite side of the rotation axis side with an inclination with respect to the one and formed integrally with the one. It has a tapered surface that moves one of the lid members to a locking position where the main body locking surface and the lid member locking surface are mutually locked along the axial direction as the lid member rotates. It is characterized by that.

Further, in the housing, the tapered surface has the main body locking surface or the lid member locking with respect to the direction along the rotation locus of the lid member in a state where one of the tapered surfaces is in the locking position. It can be opposed to the other side of the surface with a gap.

Further, in the housing, the tapered surface abuts on the other of the main body locking surface or the lid member locking surface as the lid member rotates, and guides the one to the locking position. can do.

In order to achieve the above object, the electric junction box according to the present invention includes an electronic component and a housing for accommodating the electronic component inside, and the housing includes a housing body having an opening formed therein. , A rotation base end locking mechanism that rotatably locks the lid member to the lid member that closes the opening and the housing body with the rotation axis along the axial direction as the center of rotation. In a state where the housing body and the lid member are locked by the rotation base end locking mechanism, the side wall portion of the main body extends along the direction intersecting the axial direction in the housing body. On the other hand, the lid member includes a side wall locking mechanism that non-rotatably locks the side wall portion of the lid member extending along a direction intersecting the axial direction in the lid member, and the side wall locking mechanism is provided. The main body locking surface provided on the side wall portion side of the main body, the lid member locking surface provided on the side wall portion side of the lid member, and the rotation axis side of one of the main body locking surface or the lid member locking surface. It is positioned on the opposite side of the other side with an inclination with respect to the one, and is integrally formed with the one. It is characterized by having a tapered surface that moves the lid member locking surface to a locking position where the lid member locking surface is mutually locked.

In order to achieve the above object, the wire harness according to the present invention includes a wiring material having conductivity and an electric connection box electrically connected to the wiring material, and the electric connection box is the above-mentioned electric connection box. It includes an electronic component that is electrically connected to the wiring material and a housing that houses the electronic component inside. The housing has a housing body having an opening formed therein and a lid that closes the opening. A rotation base end locking mechanism that rotatably locks the lid member to the member and the housing body about the rotation axis along the axis direction, and the rotation base end. With respect to the main body side wall portion extending along the direction intersecting the axial direction in the housing main body in a state where the housing main body and the lid member are locked by the locking mechanism, the lid member A side wall portion locking mechanism for non-rotatably locking the side wall portion of the lid member extending along the direction intersecting the axial direction is provided, and the side wall portion locking mechanism is provided on the side wall portion side of the main body. The main body locking surface, the lid member locking surface provided on the side wall portion side of the lid member, and one of the main body locking surface or the lid member locking surface on the side opposite to the rotation axis side. It is positioned with an inclination with respect to the other and is integrally formed with the one, and as the lid member rotates, the one is provided with the main body locking surface and the lid member locking surface along the axial direction. Is characterized by having a tapered surface that moves them to a locking position where they are locked to each other.

In the housing, the electrical junction box, and the wire harness according to the present invention, the side wall portion of the lid member is locked by the side wall locking mechanism in a state where the housing body and the lid member are locked by the rotating base end locking mechanism. Is non-rotatably locked to the side wall of the main body. With this configuration, the housing can be attached to the housing body with the lid member. In this case, first, the housing body and the lid member are rotatably locked by the rotation base end locking mechanism. Then, in the housing, as the lid member rotates with respect to the housing main body, the tapered surface constituting the side wall portion locking mechanism has one of the main body locking surface or the lid member locking surface, and the main body locking surface and the lid. Move to a locking position where the member locking surfaces are mutually locked. As a result, the housing, the electric junction box, and the wire harness have the effect that the assembling property can be improved.

FIG. 1 is a perspective view showing a schematic configuration of an electrical junction box according to an embodiment. FIG. 2 is a perspective view showing a schematic configuration of an electrical junction box according to an embodiment. FIG. 3 is a perspective view showing a schematic configuration of an electrical junction box according to an embodiment. FIG. 4 is a perspective view showing a schematic configuration of an electrical junction box according to an embodiment. FIG. 5 is a partial cross-sectional view including a side wall locking mechanism of the electrical junction box according to the embodiment. FIG. 6 is a front view of the cover-side locking portion of the electrical junction box according to the embodiment. FIG. 7 is a schematic view continuously showing the operation of the side wall locking mechanism of the electrical junction box according to the comparative example. FIG. 8 is a schematic view continuously showing the operation of the side wall locking mechanism of the electrical junction box according to the embodiment.

Hereinafter, embodiments according to the present invention will be described in detail with reference to the drawings. The present invention is not limited to this embodiment. In addition, the components in the following embodiments include those that can be easily replaced by those skilled in the art, or those that are substantially the same.

In addition, in FIG. 1, FIG. 2, FIG. 3, and FIG. 4 described below, the wiring material is omitted by a two-dot chain line. Similarly, FIGS. 3 and 4 show a part of the electronic component omitted by a two-dot chain line. FIGS. 1, 2, and 5 show a state in which the frame and the upper cover are non-rotatably assembled. On the other hand, FIGS. 3 and 4 show a state in which the frame and the upper cover are rotatably assembled. Further, in the following description, the three directions intersecting each other are referred to as "first direction X", "second direction Y", and "third direction Z", respectively, for convenience. Here, the first direction X, the second direction Y, and the third direction Z are orthogonal to each other. The first direction X typically corresponds to the stacking direction of the frame, the lower cover, and the upper cover. The second direction Y typically corresponds to the axial direction along the rotation axis that is the center of rotation of the upper cover with respect to the frame. Typically, with the electrical junction box mounted on the vehicle and the vehicle located on the horizontal plane, the first direction X and the second direction Y are along the horizontal direction, and the third direction Z is along the vertical direction. Unless otherwise specified, each direction used in the following description will be described as a direction in which the parts are assembled to each other and the electric junction box is mounted on the vehicle.

[Embodiment]
The electric junction box 1 according to the present embodiment shown in FIGS. 1, 2, 3, and 4 is mounted on a vehicle such as an automobile and incorporated into a wire harness WH. In the wire harness WH, for example, for connection between each device mounted on a vehicle, a plurality of wiring materials W used for power supply and signal communication are bundled into a collective part, and a plurality of wirings are made by a connector or the like. The material W is connected to each device. The wire harness WH includes a wiring material W having conductivity and an electrical connection box 1 electrically connected to the wiring material W. The wiring material W is composed of, for example, a metal rod, an electric wire, a bundle of electric wires, and the like. The metal rod is obtained by covering the outside of the rod-shaped member having conductivity with an insulating covering portion. The electric wire is formed by covering the outside of a conductor portion (core wire) made of a plurality of conductive metal strands with an insulating covering portion. The electric wire bundle is a bundle of the electric wires. In the wire harness WH, a plurality of wiring materials W are bundled and aggregated, and the electrical connection box 1 is electrically connected via a connector or the like provided at the terminal of the bundled wiring materials W. The wire harness WH may further include a grommet, a protector, an exterior material, a fixture, and the like.

The electrical junction box 1 is a collection of electrical components such as connectors, fuses, relays, capacitors, branch parts, and electronic control units, and is housed therein. The electrical junction box 1 is installed in, for example, the engine room or the vehicle interior of the vehicle. The electric connection box 1 is connected between a power source such as a battery and various electronic devices mounted in the vehicle via a wiring material W or the like. The electric junction box 1 distributes the electric power supplied from the power source to various electronic devices in the vehicle. The electrical junction box 1 may also be referred to as a junction box, a fuse box, a relay box, or the like, but in the present embodiment, these are collectively referred to as an electrical junction box.

Specifically, the electrical junction box 1 includes an electronic component 2 and a housing 3 that houses the electronic component 2 inside. The electronic component 2 is an element housed inside the housing 3 and exerts various functions. The electronic component 2 is for electrically connecting the wiring material W. The electronic component 2 is, for example, an electronic control unit including a capacitor, a relay, a resistor, a transistor, a fuse, a connector, an IPS (Intelligent Power Switch), and a microcomputer. The housing 3 accommodates each part including the electronic component 2 and the like inside the hollow shape. In the electrical connection box 1, the electronic component 2 is housed in the housing 3, and the wiring material W is electrically connected to the electronic component 2. Hereinafter, the configuration of the housing 3 will be described in detail with reference to each figure.

Specifically, the housing 3 accommodates the electronic component 2 in the accommodation space 34 formed inside the housing 3. The housing 3 includes a frame 31 as a housing body, a lower cover 32 as a bottom member, and an upper cover 33 as a lid member. The housing 3 has a three-layer split structure in which the frame 31, the lower cover 32, and the upper cover 33 are divided. The frame 31, the lower cover 32, and the upper cover 33 are formed of an insulating synthetic resin. In the housing 3, the frame 31, the lower cover 32, and the upper cover 33 are laminated and assembled to each other along a predetermined laminating direction (here, as an example, the first direction X). With this configuration, the housing 3 is formed into a hollow box shape as a whole by combining the frame 31, the lower cover 32, and the upper cover 33 as a plurality of members. In the housing 3, the internal space portion partitioned by the frame 31, the lower cover 32, and the upper cover 33 constitutes the accommodation space portion 34.

The frame 31 is a main member forming the accommodation space portion 34. The frame 31 is formed in a hollow shape by the wall portion 31a. The wall portion 31a is a wall body forming the accommodation space portion 34. The wall portion 31a is formed in a polygonal tubular shape (substantially rectangular tubular shape) and is open on both sides in the first direction X. The frame 31 is formed by the wall portion 31a in a tubular frame shape having openings 31b and 31c on two surfaces facing the first direction X. In other words, the wall portion 31a is a wall body forming the openings 31b and 31c in the frame 31. In the frame 31, an opening 31b is formed on one side of the first direction X, and an opening 31c is formed on the other side of the first direction X.

The lower cover 32 is a dish-shaped (tray-shaped) member that closes the opening 31b on one side of the first direction X of the frame 31. The lower cover 32 is formed in a hollow shape by the wall portion 32a and the plate-shaped portion 32b. The wall portion 32a is a wall body forming the accommodation space portion 34. The wall portion 32a is formed in a polygonal tubular shape (substantially rectangular tubular shape). The plate-shaped portion 32b is a bottom body that closes one side of the wall portion 32a in the first direction X (the side opposite to the side facing the opening 31b). The wall portion 32a is open on the other side of the first direction X (the side facing the opening 31b). The lower cover 32 is formed in a tubular frame shape having a wall portion 32a and a plate-shaped portion 32b that close one side of the first direction X and have an opening 32c on the other side of the first direction X. In other words, the wall portion 32a is a wall body that forms the opening 32c in the lower cover 32.

The upper cover 33 is a lid-shaped (cover-shaped) member that closes the opening 31c on the other side of the first direction X of the frame 31. The upper cover 33 is formed in a hollow shape by the wall portion 33a and the plate-shaped portion 33b. The wall portion 33a is a wall body forming the accommodation space portion 34. The wall portion 33a is formed in a polygonal cylindrical shape (substantially rectangular tubular shape), and is open on one side (the side facing the opening 31c) of the first direction X. The plate-shaped portion 33b is a ceiling body that closes the other side of the wall portion 33a in the first direction X (the side opposite to the side facing the opening 31c). The upper cover 33 is formed by the wall portion 33a and the plate-shaped portion 33b in a tubular frame shape having an opening 33c on one side of the first direction X and the other side of the first direction X being closed. In other words, the wall portion 33a is a wall body that forms the opening 33c in the upper cover 33.

In the housing 3, the opening 31b on one side of the first direction X of the frame 31 and the opening 32c of the lower cover 32 face each other, and the opening 31c on the other side of the first direction X of the frame 31 and the upper cover 33 It is located so as to face the opening 33c. In this positional relationship, the housing 3 has the lower cover 32 assembled on one side of the first direction X of the frame 31, and the upper cover 33 assembled on the other side of the first direction X of the frame 31. The housing 3 includes various types of locking mechanisms 35, and the upper cover 33 and the lower cover 32 are locked to the frame 31 via the locking mechanism 35. With this configuration, the housing 3 is formed in a substantially rectangular cuboid shape in which the second direction Y is the long side direction as a whole. Then, in the housing 3, the accommodation space portion 34 is partitioned inside the frame 31, the lower cover 32, and the upper cover 33.

The accommodation space portion 34 is a space for accommodating the electronic component 2 inside. The accommodation space portion 34 is a space partitioned by the frame 31, the lower cover 32, and the upper cover 33, and surrounded by the frame 31, the lower cover 32, and the upper cover 33. That is, in the accommodation space portion 34, one side of the first direction X is partitioned by the plate-shaped portion 32b of the lower cover 32, and the other side of the first direction X is partitioned by the plate-shaped portion 33b of the upper cover 33. Further, the accommodation space portion 34 is partitioned by the wall portion 31a of the frame 31, the wall portion 32a of the lower cover 32, and the wall portion 33a of the upper cover 33 with respect to the second direction Y and the third direction Z. .. The electrical junction box 1 is provided with, for example, a block 36 (see FIG. 4) in the accommodation space 34. The block 36 is detachably attached to the frame 31 via various types of locking mechanisms. The block 36 is formed of a synthetic resin having an insulating property like the frame 31 and the like. The block 36 may be divided into a plurality of parts. A large number of cavities are formed in the block 36. The electronic component 2 is assembled in each cavity. Further, the block 36 is assembled with a circuit body made of a conductive metal material. The circuit body electrically connects each electronic component 2 assembled in each cavity to form a part of the electric circuit, and is, for example, a bus bar or the like. The wiring material W is connected to the block 36. The wiring material W is, for example, in the accommodation space portion 34 via an insertion port 37 (see FIGS. 3 and 4) formed in a mating surface between the wall portion 31a of the frame 31 and the wall portion 32a of the lower cover 32. Be laid out. In the block 36, a terminal or the like provided at the terminal of the wiring material W is inserted into each cavity from one side of the first direction X and fitted. Further, the block 36 is fitted with the electronic component 2 inserted into each cavity from the other side of the first direction X. With this configuration, each electronic component 2 and each wiring material W are electrically connected to each other via a circuit body such as a bus bar in a state of being assembled and mounted on the block 36 to form a required electric circuit. do.

By the way, in the electric connection box 1 of the present embodiment, as an example, the openings 31b and 31c of the frame 31 are positioned below the instrument panel in the vehicle interior so as to face the horizontal direction (first direction X). It will be provided. Then, for example, the electrical connection box 1 has the opening 31c and the upper cover 33 on the seat side in the horizontal direction (first direction X) so that the opening 31c can be opened and closed from the seat side in the vehicle interior. It is provided in a positional relationship facing each other. The housing 3 of the present embodiment has a configuration in which the upper cover 33 can be assembled while rotating the upper cover 33 with respect to the opening 31c of the frame 31.

In the housing 3 of the present embodiment, as a locking mechanism 35 for locking the frame 31 and the upper cover 33 as described above, the rotating base end locking mechanism 4, the side wall portion locking mechanism 5, and the side wall portion locking mechanism 5 are used. A rotating tip locking mechanism 6 and an auxiliary locking mechanism 7 are provided. With this configuration, the housing 3 is configured such that the upper cover 33 is rotatably locked to the frame 31 by the rotation base end locking mechanism 4. Then, in the housing 3, the side wall portion locking mechanism 5, the rotating tip locking mechanism 6, and the rotating tip locking mechanism 6 are in a state where the upper cover 33 and the frame 31 are rotatably locked by the rotating base end locking mechanism 4. The upper cover 33 is non-rotatably locked to the frame 31 by the auxiliary locking mechanism 7. With this configuration, the housing 3 can be attached to the frame 31 with the upper cover 33.

Specifically, the rotation base end locking mechanism 4 rotates the upper cover 33 with respect to the frame 31 with the rotation axis C (see FIGS. 1 and 3) along the axis direction as the rotation center. It is possible to lock. Here, the axial direction of the rotation axis C corresponds to the second direction Y. Two rotation base end locking mechanisms 4 are provided on one wall surface of the housing 3 along the second direction Y, in other words, on one wall surface of the housing 3 in the third direction Z. Here, each rotation base end locking mechanism 4 rotates the first side wall portion 31d of the frame 31 (see FIGS. 1 and 3) and the first side wall portion 33d of the upper cover 33 (see FIGS. 1 and 3). Locks movably. Here, the first side wall portion 31d is a portion of the wall portion 31a that constitutes one side wall along the second direction Y, that is, one side wall of the wall portion 31a in the third direction Z. The first side wall portion 33d is a portion of the wall portion 33a that constitutes one side wall along the second direction Y, that is, one side wall of the wall portion 33a in the third direction Z. The first side wall portion 31d and the first side wall portion 33d each extend along the second direction Y and have various uneven shapes. Each rotation base end locking mechanism 4 has a frame-side locking portion 41 and a cover-side locking portion 42, respectively.

Each frame-side locking portion 41 is formed as a locking claw portion that protrudes outward (on the side opposite to the accommodation space portion 34) from the first side wall portion 31d of the frame 31 along the third direction Z in a claw shape. .. The frame-side locking portions 41 are provided side by side with a gap along the edge of the first side wall portion 31d on the upper cover 33 side in the first direction X, that is, the edge on the opening 31c side.

Each cover-side locking portion 42 is provided on the first side wall portion 33d of the upper cover 33, and can be locked to the frame-side locking portion 41 at a position corresponding to each. Each cover-side locking portion 42 constitutes a lock arm 43, respectively. The lock arms 43 are provided side by side with a gap along the edge of the first side wall portion 33d on the frame 31 side in the first direction X, that is, the edge on the opening 33c side. Each lock arm 43 is formed extending from the first side wall portion 33d toward the frame 31 side in the first direction X along the first direction X. Each lock arm 43 includes a cover-side locking portion 42 and a pair of arm portions 44, 45, respectively. The cover-side locking portion 42 is formed in a shaft shape that can be locked with the frame-side locking portion 41. The cover-side locking portion 42 extends along the second direction Y. The cover-side locking portion 42 constitutes a rotating shaft portion of the upper cover 33 in a state where the upper cover 33 is rotatably locked to the frame 31. Each of the arm portions 44 and 45 has the edge on the opening 33c side of the first direction X as the base end portion, and the tip end portion projects toward the frame 31 side of the first direction X so that the first direction X is X. It is formed extending along the line. The arm portion 44 and the arm portion 45 face each other at a distance along the second direction Y, and extend in parallel with each other along the first direction X. The arm portion 44 and the arm portion 45 support a cover-side locking portion 42 between the tip portions thereof. One end of the arm portion 44 and the arm portion 45 is connected to the first side wall portion 33d to form a base end portion, and the other end portion constitutes a tip portion and both ends of the cover side locking portion 42. Cantilever support. The distance between the arm portion 44 and the arm portion 45 is set in the second direction Y of the frame side locking portion 41 so that the frame side locking portion 41 can be inserted between the pair of arm portions 44, 45. It is taken larger than the length.

Each frame-side locking portion 41 and each cover-side locking portion 42 configured as described above are in a state where the upper cover 33 is positioned so as to close the entire opening 31c of the frame 31, and each frame-side engaging portion is engaged. The stop portion 41 and each cover-side locking portion 42 are formed so as to have a lockable positional relationship. Then, each rotation base end locking mechanism 4 rotates the rotation axis C along the second direction Y by locking each frame side locking portion 41 and each cover side locking portion 42. As the center, the upper cover 33 can be rotatably locked to the frame 31. In other words, in each rotation base end locking mechanism 4, each frame side locking portion 41 and each cover side locking portion 42 are locked, so that the rotation becomes the center of rotation of the upper cover 33 with respect to the frame 31. The driving axis C is formed.

The side wall locking mechanism 5 rotatably locks the upper cover 33 to the frame 31 in a state where the frame 31 and the upper cover 33 are rotatably locked by the rotating base end locking mechanism 4. It is something to do. One side wall locking mechanism 5 is provided on one wall surface of the housing 3 along the third direction Z, in other words, on one wall surface of the housing 3 in the second direction Y. Here, the side wall locking mechanism 5 is compared with another locking mechanism 35 for locking the frame 31 and the upper cover 33, that is, the rotating tip locking mechanism 6 and the auxiliary locking mechanism 7. , Is provided at the position farthest from the rotation axis C. In other words, the side wall locking mechanism 5 is located on the most tip side of the rotation locus formed by the upper cover 33 among the locking mechanisms 35 that lock the frame 31 and the upper cover 33. More specifically, the side wall portion locking mechanism 5 is provided with respect to the second side wall portion 31e of the frame 31 in a state where the frame 31 and the upper cover 33 are rotatably locked by the rotation base end locking mechanism 4. The second side wall portion 33e of the upper cover 33 is non-rotatably locked. Here, the second side wall portion 31e is a portion of the wall portion 31a that constitutes one side wall along the third direction Z, that is, one side wall of the wall portion 31a in the second direction Y. The second side wall portion 31e constitutes a main body side wall portion extending along a direction orthogonal to (intersecting) the second direction Y (axial direction) in the frame 31. The second side wall portion 33e is a portion of the wall portion 33a that constitutes one side wall along the third direction Z, that is, one side wall of the wall portion 33a in the second direction Y. The second side wall portion 33e constitutes a lid member side wall portion extending along a direction orthogonal to (intersecting) the second direction Y (axial direction) in the upper cover 33. The second side wall portion 31e and the second side wall portion 33e extend along the third direction Z and have various uneven shapes in the states shown in FIGS. 1 and 2, respectively. The side wall locking mechanism 5 has a frame-side locking portion 51 and a cover-side locking portion 52. In the following description of the side wall locking mechanism 5, FIG. 5 is also referred to as appropriate.

The frame-side locking portion 51 is formed on the inner wall surface 53a (see FIG. 5) of the tubular receiving portion 53 formed on the second side wall portion 31e of the frame 31. Here, the tubular receiving portion 53 is formed in a rectangular tubular shape so as to project from the second side wall portion 31e to the outside in the second direction Y (the side opposite to the accommodation space portion 34). The tubular receiving portion 53 is open on both sides in the first direction X. The frame-side locking portion 51 is formed on the inner wall surface 53a of the tubular receiving portion 53. The inner wall surface 53a is a wall surface of the tubular receiving portion 53 facing the second side wall portion 31e along the second direction Y. The frame-side locking portion 51 is formed as a locking claw portion that protrudes like a claw from the edge of the inner wall surface 53a on the opening 31c side in the first direction X toward the second side wall portion 31e along the second direction Y. To. The frame-side locking portion 51 extends linearly along the third direction Z. The frame-side locking portion 51 has a locking surface 51a, and a surface opposite to the upper cover 33 side in the first direction X constitutes the locking surface 51a (see FIG. 5). The locking surface 51a is a surface constituting the main body locking surface provided on the second side wall portion 31e side in the side wall portion locking mechanism 5. The locking surface 51a is a surface that is locked to the locking surface 52a of the cover-side locking portion 52, which will be described later. The locking surface 51a extends linearly along the third direction Z.

The cover-side locking portion 52 is formed on the outer wall surface 54a of the arm portion 54 formed on the second side wall portion 33e of the upper cover 33. Here, in the state shown in FIGS. 1, 2, and 5, the arm portion 54 has an edge of the second side wall portion 33e opposite to the frame 31 side in the first direction X, that is, the plate-shaped portion 33b side. It is formed in an arm shape so as to project from the edge to the outside of the second direction Y (the side opposite to the accommodation space 34). The arm portion 54 extends along the first direction X so that the tip portion protrudes toward the frame 31 side of the first direction X with the edge on the plate-shaped portion 33b side of the first direction X as the base end portion. It is and is formed. The end of the arm portion 54 on the plate-shaped portion 33b side in the first direction X is connected to the second side wall portion 33e to form a base end portion, and the base end portion is cantilevered to the second side wall portion 33e. Be supported. The end of the arm portion 54 on the frame 31 side in the first direction X constitutes a tip portion, and the tip portion forms a free end. The arm portion 54 is formed with relatively high flexibility with respect to the second direction Y by supporting the base end portion in a cantilever shape and forming a free end portion, and the second direction Y is formed. It is configured to be elastically deformable along the line. That is, the arm portion 54 can bend along the second direction Y. The cover-side locking portion 52 is formed on the outer wall surface 54a of the arm portion 54. The outer wall surface 54a is a wall surface of the arm portion 54 on the side opposite to the surface facing the second side wall portion 33e along the second direction Y. The cover-side locking portion 52 is located on the second side wall portion 33e side along the second direction Y from the edge of the outer wall surface 54a on the frame 31 side in the first direction X, that is, the edge opposite to the plate-shaped portion 33b side. It is formed as a locking claw portion that protrudes like a claw on the opposite side. The cover-side locking portion 52 extends linearly along the third direction Z in the state shown in FIGS. 1, 2, and 5. The cover-side locking portion 52 has a locking surface 52a, and the surface opposite to the frame 31 side in the first direction X, that is, the surface on the plate-shaped portion 33b side is the locking surface 52a (see FIG. 5). ). The locking surface 52a is a surface constituting the lid member locking surface provided on the second side wall portion 33e side in the side wall portion locking mechanism 5. The locking surface 52a is a surface that is locked to the locking surface 51a of the frame-side locking portion 51 described above. The locking surface 52a extends linearly along the third direction Z in the state shown in FIGS. 1, 2, and 5.

The frame-side locking portion 51 and the cover-side locking portion 52 configured as described above are the frame-side locking portion 51 in a state where the upper cover 33 is positioned so as to close the entire opening 31c of the frame 31. And the cover-side locking portion 52 are formed so as to have a lockable positional relationship. Then, in the side wall portion locking mechanism 5, the frame 31 and the upper cover 33 are locked by the rotation base end locking mechanism 4, and the locking surface 51a of the frame side locking portion 51 and the cover side locking are engaged. The locking surface 52a of the portion 52 meshes with each other and is locked. With this configuration, the side wall locking mechanism 5 can rotatably lock the upper cover 33 with respect to the frame 31. Further, in the side wall portion locking mechanism 5, for example, when the outer wall surface 54a of the arm portion 54 on which the cover side locking portion 52 is formed is pressed, the outer wall surface 54a bends and locks with the locking surface 51a. The engagement with the surface 52a is released. With this configuration, the side wall locking mechanism 5 can release the state in which the upper cover 33 is rotatably locked to the frame 31.

Similar to the side wall portion locking mechanism 5, the rotating tip locking mechanism 6 has the frame 31 and the upper cover 33 rotatably locked to the frame 31 by the rotating base end locking mechanism 4. The upper cover 33 is non-rotatably locked. One rotating tip locking mechanism 6 is provided on the other wall surface of the housing 3 along the second direction Y, in other words, on the other wall surface of the housing 3 in the third direction Z. That is, one rotating tip locking mechanism 6 is provided on the wall surface of the housing 3 facing the wall surface provided with the rotating base end locking mechanism 4 along the third direction Z. Here, the rotating tip locking mechanism 6 rotatably locks the third side wall portion 31f of the frame 31 (see FIGS. 2 and 4) and the third side wall portion 33f of the upper cover 33. Here, the third side wall portion 31f is a portion of the wall portion 31a that constitutes the other side wall along the second direction Y, that is, the other side wall of the wall portion 31a in the third direction Z. That is, the third side wall portion 31f is a portion of the wall portion 31a facing the first side wall portion 31d along the third direction Z. The third side wall portion 33f is a portion of the wall portion 33a that constitutes the other side wall along the second direction Y, that is, the other side wall of the wall portion 33a in the third direction Z. That is, the third side wall portion 33f is a portion of the wall portion 33a facing the first side wall portion 33d along the third direction Z. The third side wall portion 31f and the third side wall portion 33f each extend along the second direction Y and have various uneven shapes. The rotating tip locking mechanism 6 has a frame-side locking portion 61, a cover-side locking portion 62, a cylindrical receiving portion 63, and an arm portion 64. Here, since the rotating tip locking mechanism 6 has almost the same configuration as the side wall portion locking mechanism 5, detailed description thereof will be omitted. The frame-side locking portion 61 corresponds to the frame-side locking portion 51 of the side wall portion locking mechanism 5. The cover-side locking portion 62 corresponds to the cover-side locking portion 52 of the side wall portion locking mechanism 5. The tubular receiving portion 63 corresponds to the tubular receiving portion 53 of the side wall portion locking mechanism 5. The arm portion 64 corresponds to the arm portion 54 of the side wall portion locking mechanism 5.

In the auxiliary locking mechanism 7, the frame 31 and the upper cover 33 are rotatably locked by the rotating base end locking mechanism 4, similar to the side wall portion locking mechanism 5 and the rotating tip locking mechanism 6. In this state, the upper cover 33 is non-rotatably locked to the frame 31. One auxiliary locking mechanism 7 is provided on the other wall surface of the housing 3 along the third direction Z, in other words, on the other wall surface of the housing 3 in the second direction Y. That is, one auxiliary locking mechanism 7 is provided on the wall surface of the housing 3 facing the wall surface provided with the side wall portion locking mechanism 5 along the second direction Y. Here, the auxiliary locking mechanism 7 has an upper with respect to the fourth side wall portion 31g of the frame 31 in a state where the frame 31 and the upper cover 33 are rotatably locked by the rotating base end locking mechanism 4. The fourth side wall portion 33g of the cover 33 is non-rotatably locked. Here, the fourth side wall portion 31g is a portion of the wall portion 31a that constitutes the other side wall along the third direction Z, that is, the other side wall of the wall portion 31a in the second direction Y. That is, the fourth side wall portion 31g is a portion of the wall portion 31a facing the second side wall portion 31e along the second direction Y. The fourth side wall portion 31g constitutes a main body side wall portion extending along a direction orthogonal to (intersecting) the second direction Y (axial direction) in the frame 31. The fourth side wall portion 33g is a portion of the wall portion 33a that constitutes the other side wall along the third direction Z, that is, the other side wall of the wall portion 33a in the second direction Y. That is, the fourth side wall portion 33g is a portion of the wall portion 33a facing the second side wall portion 33e along the second direction Y. The fourth side wall portion 33g constitutes a lid member side wall portion extending along a direction orthogonal to (intersecting) the second direction Y (axial direction) in the upper cover 33. The fourth side wall portion 31 g and the fourth side wall portion 33 g extend along the third direction Z and have various uneven shapes in the states shown in FIGS. 1 and 2, respectively. Here, since the auxiliary locking mechanism 7 is a locking mechanism 35 auxiliary provided in the housing 3, detailed description thereof will be omitted.

When assembling the upper cover 33 to the frame 31, the housing 3 configured as described above first tilts the upper cover 33 with respect to the frame 31 to tilt each frame-side locking portion 41 and each cover. The side locking portion 42 is locked (see FIGS. 3, 4, etc.). Then, in the housing 3, each frame side locking portion 41 and each cover side locking portion 42 are locked, and the frame 31 and the upper cover 33 are locked by each rotation base end locking mechanism 4. The upper cover 33 is rotated toward the opening 31c with the rotation axis C as the center of rotation. As a result, the housing 3 is positioned so that the upper cover 33 closes the entire opening 31c of the frame 31 (see FIGS. 1, 2, etc.). Then, in the housing 3, the frame-side locking portion 51 and the cover-side locking portion 52 mesh with each other and engage with each other in a state where the upper cover 33 is positioned so as to close the entire opening 31c of the frame 31. It will be stopped. As a result, the housing 3 can rotatably lock the upper cover 33 with respect to the frame 31 by the side wall locking mechanism 5. Similarly, the housing 3 can lock the upper cover 33 to the frame 31 in a non-rotatable manner by the rotating tip locking mechanism 6 and the auxiliary locking mechanism 7. As a result, the housing 3 engages the upper cover 33 with respect to the frame 31 by the rotation base end locking mechanism 4, the side wall portion locking mechanism 5, the rotating tip locking mechanism 6, and the auxiliary locking mechanism 7. It can be stopped and fixed.

As described above, the housing 3 of the present embodiment has a configuration in which the upper cover 33 is assembled and locked with respect to the frame 31 while drawing a rotation locus, and further, a side wall portion locking mechanism is provided. By forming the 5 into a predetermined shape, the assembling property is improved.

Specifically, as shown in FIG. 6, the side wall locking mechanism 5 is provided in addition to the locking surface 51a of the frame-side locking portion 51 and the locking surface 52a of the cover-side locking portion 52 described above. Further, it is configured to have a tapered surface 52b.

The tapered surface 52b is positioned on one of the locking surface 51a and the locking surface 52a on the side opposite to the rotation axis C side with an inclination with respect to the one, and is integrally formed with the one. The tapered surface 52b of the present embodiment is positioned on the side opposite to the rotation axis C side of the locking surface 52a with an inclination with respect to the locking surface 52a and is integrally formed with the locking surface 52a. .. That is, the tapered surface 52b is integrally formed with the locking surface 52a on the cover side locking portion 52. The tapered surface 52b is formed on the cover-side locking portion 52 on the surface opposite to the frame 31 side in the first direction X, that is, on the surface on the plate-shaped portion 33b side, along with the locking surface 52a. The tapered surface 52b is in a state in which the frame 31 and the upper cover 33 are non-rotatably assembled (in the state shown in FIGS. 1, 2, and 5 (hereinafter, may be referred to as “non-rotatable state”). The tapered surface 52b is formed adjacent to the locking surface 52a along the third direction Z. The tapered surface 52b is viewed along the axial direction (second direction Y) in an unrotatable state (see FIG. 6). ), The tapered surface 52b is formed as an inclined surface in which the amount of depression (offset amount) in the first direction X with respect to the locking surface 52a gradually increases as the distance from the rotation axis C increases. Along with the rotation of the upper cover 33 about the rotation axis C as the rotation center, the locking surface 52a is engaged with the locking surface 51a and the locking surface 52a being mutually locked along the second direction Y. It functions as a guide surface for moving to a stop position (see FIG. 5). The inclination angle of the tapered surface 52b with respect to the locking surface 52a is appropriately adjusted according to the rotation locus formed by the upper cover 33. Is typically, just before the cover-side locking portion 52 gets over the frame-side locking portion 51 and is locked to the locking surface 51a with the rotation of the upper cover 33, the cover side by the tapered surface 52b. The angle at which the entire locking portion 52 is dropped toward the locking position is adjusted.

In the housing 3, the electrical connection box 1, and the wire harness WH described above, the side wall portion locking mechanism 5 is in a state where the frame 31 and the upper cover 33 are locked by the rotating base end locking mechanism 4. The second side wall portion 33e is non-rotatably locked to the second side wall portion 31e. With this configuration, the housing 3 can be attached to the frame 31 with the upper cover 33. In this case, first, in the housing 3, the frame 31 and the upper cover 33 are rotatably locked by the rotation base end locking mechanism 4. Then, in the housing 3, the tapered surface 52b constituting the side wall portion locking mechanism 5 is locked to one of the locking surface 51a or the locking surface 52a as the upper cover 33 rotates with respect to the frame 31. The surface 52a is moved to a locking position where the locking surface 51a and the locking surface 52a are mutually locked. As a result, the housing 3, the electrical connection box 1, and the wire harness WH can be improved in assembling property.

For example, the side wall locking mechanism 5A of the electrical junction box according to the comparative example shown in FIG. 7 has a configuration that does not have the tapered surface 52b. In this case, the side wall locking mechanism 5A tries to get over the frame-side locking portion 51 while the cover-side locking portion 52 bends the arm portion 54 as the upper cover 33 rotates. At this time, in the side wall portion locking mechanism 5A, the locking surface 52a of the cover-side locking portion 52 is rotated in a state of being inclined with respect to the locking surface 51a of the frame-side locking portion 51, and the locking surface 52a is rotated. The cover-side locking portion 52 is dropped to the locking position side at the timing when the corner portion finally completely overcomes the frame-side locking portion 51. Therefore, the side wall locking mechanism 5A gets over the frame-side locking portion 51 while the entire cover-side locking portion 52 is twisted as the upper cover 33 rotates, and the corner portion of the cover-side locking portion 52 is the frame. While rubbing against the side locking portion 51, it will be dropped to the locking position side. As a result, the side wall locking mechanism 5A tends to have a relatively weak force when the cover-side locking portion 52 is dropped to the locking position side. As a result, in the side wall portion locking mechanism 5A, the feeling that the cover-side locking portion 52 has passed over the frame-side locking portion 51 and dropped into the locking position tends to be difficult to be transmitted to the operator, and the fee in the assembly work tends to be difficult. The ring tends to be relatively bad.

On the other hand, in the side wall locking mechanism 5 of the present embodiment, the cover-side locking portion 52 tries to get over the frame-side locking portion 51 while bending the arm portion 54 as the upper cover 33 rotates. do. At this time, as shown in FIG. 8, in the side wall portion locking mechanism 5, immediately before the cover-side locking portion 52 gets over the frame-side locking portion 51 and the locking surface 52a is locked to the locking surface 51a. The tapered surface 52b causes the entire cover-side locking portion 52 to be dropped and guided to the locking position side along the second direction Y. Therefore, in the side wall portion locking mechanism 5, the entire cover-side locking portion 52 is dropped to the locking position side while being surface-guided by the tapered surface 52b as the upper cover 33 rotates. The side locking portion 52 can be smoothly dropped to the locking position side. As a result, the side wall locking mechanism 5 can relatively increase the force when the cover-side locking portion 52 is dropped to the locking position side. As a result, the side wall locking mechanism 5 can be assembled so that the feeling that the cover-side locking portion 52 gets over the frame-side locking portion 51 and is dropped into the locking position can be easily transmitted to the operator. It is possible to improve the work feeling in the work. Further, the side wall locking mechanism 5 is, for example, a tapping sound (engagement) generated when the frame-side locking portion 51 collides with the arm portion 54 when the cover-side locking portion 52 gets over the frame-side locking portion 51. It is also possible to make the sound stop) relatively large. In this respect as well, the side wall locking mechanism 5 can improve the work feeling in the assembling work. Therefore, the housing 3 can reliably rotate the upper cover 33 with respect to the frame 31 to a position where the locking surface 51a and the locking surface 52a are in the locked state, and as a result, the frame 31 can be reliably rotated. And the upper cover 33 can be securely assembled.

On top of that, the side wall locking mechanism 5 has a locking surface 52a formed separately from the tapered surface 52b as described above, and the locking surface 52a has a locking holding force with the locking surface 51a. Can be properly secured. Further, the side wall locking mechanism 5 can appropriately secure the strength of the cover-side locking portion 52 as compared with the case where the tapered surface 52b is provided on the entire cover-side locking portion 52.

As a result, the housing 3 improves the certainty of the assembling work by improving the assembling work feeling between the frame 31 and the upper cover 33, and secures an appropriate locking holding force between the frame 31 and the upper cover 33. It can be compatible. Therefore, the housing 3, the electrical junction box 1, and the wire harness WH can improve the assemblability of the frame 31 and the upper cover 33 as described above.

Here, as shown in FIG. 8, the tapered surface 52b is engaged with respect to the direction along the rotation locus of the upper cover 33 in a state where the locking surface 52a is in the locking position with the locking surface 51a. On the other side of the stop surface 51a or the locking surface 52a, here, the locking surface 51a faces the locking surface 51a with a gap 52c. As a result, the side wall locking mechanism 5 has a configuration in which the tapered surface 52b for improving the assembly work feeling is clearly separated from the locking surface 52a for ensuring an appropriate locking holding force. be able to. Therefore, the housing 3, the electrical connection box 1, and the wire harness WH can more appropriately balance the improvement of the certainty of the assembling work and the securing of the appropriate locking holding force.

Further, as described above, the tapered surface 52b abuts on the other side of the locking surface 51a or the locking surface 52a as the upper cover 33 rotates, and here, the tapered surface 52b abuts on the locking surface 51a to lock the locking surface 52a. Guide to the position. As a result, the side wall locking mechanism 5 can reliably guide the locking surface 52a to the locking position side with the locking surface 51a by the tapered surface 52b. Therefore, the housing 3, the electrical junction box 1, and the wire harness WH can further improve the assembling property between the frame 31 and the upper cover 33.

The housing, the electrical junction box, and the wire harness according to the above-described embodiment of the present invention are not limited to the above-mentioned embodiments, and various modifications can be made within the scope of the claims. ..

In the above description, the first direction X and the second direction Y are described as being along the horizontal direction, and the third direction Z is described as being along the vertical direction, but the present invention is not limited to this. For example, the stacking direction of the frame 31, the upper cover 33, and the lower cover 32 has been described as being the first direction X along the horizontal direction when mounted on the vehicle, but the present invention is not limited to this, and for example, it is vertical. It may be along the direction. That is, in the above description, the electrical connection box 1 is provided below the instrument panel in the vehicle interior so that the openings 31b and 31c of the frame 31 face the horizontal direction (first direction X). Although it was explained as a thing, it is not limited to this. Further, the electric connection box 1 has been described as being provided in a positional relationship in which the opening 31c and the upper cover 33 face the seat side in the horizontal direction (first direction X), but the present invention is not limited to this. Further, the axial direction of the rotation axis C has been described as corresponding to the second direction Y, but the present invention is not limited to this. Further, the housing 3 described above has been described as having a three-layer split structure in which the frame 31, the lower cover 32, and the upper cover 33 are divided, but the present invention is not limited to this. The housing 3 may include at least a housing body (frame 31) and a lid member (upper cover 33), and for example, the frame 31 and the lower cover 32 may be integrally formed.

In the above description, the housing 3 has a rotating base end locking mechanism 4, a side wall portion locking mechanism 5, and a rotating tip as a locking mechanism 35 for locking the frame 31 and the upper cover 33. Although the description has been made assuming that the locking mechanism 6 and the auxiliary locking mechanism 7 are provided, the present invention is not limited to this. If the housing 3 is provided with the rotation base end locking mechanism 4 and the side wall portion locking mechanism 5, and the locking holding force for locking the frame 31 and the upper cover 33 is sufficient, the housing 3 is provided. , The rotating tip locking mechanism 6 and the auxiliary locking mechanism 7 may not be provided. Further, in the housing 3 described above, the same configuration as that of the side wall locking mechanism 5 may be applied to the auxiliary locking mechanism 7.

In the above description, both the frame-side locking portion 51 and the cover-side locking portion 52 have been described as being formed as locking claw portions protruding like a claw, but the present invention is not limited to this. One of the frame-side locking portion 51 or the cover-side locking portion 52 is formed as a claw-shaped protruding locking claw portion, and the other of the frame-side locking portion 51 or the cover-side locking portion 52 is formed. , The locking claw portion may be formed as a fitting recess. In this case, one of the locking surface 51a or the locking surface 52a is composed of the end faces of the locking recesses.

In the above description, the tapered surface 52b is locked along the third direction Z in a state where the frame 31 and the upper cover 33 are non-rotatably assembled (states shown in FIGS. 1, 2, and 5). Although it has been described as being formed adjacent to the surface 52a, the present invention is not limited to this. The tapered surface 52b may have a chamfered portion, a curved surface portion, or the like interposed between the tapered surface 52b and the locking surface 52a.

In the above description, the tapered surface 52b is positioned on the side opposite to the rotation axis C side of the locking surface 52a with an inclination with respect to the locking surface 52a and is integrated with the locking surface 52a. Although it has been described as being formed, the present invention is not limited to this, and it may be provided on the locking surface 51a side. In this case, the tapered surface is positioned on the side opposite to the rotation axis C side of the locking surface 51a with an inclination with respect to the locking surface 51a and is integrally formed with the locking surface 51a. Then, in the tapered surface, the locking surface 51a is provided with the locking surface 51a along the second direction Y as the upper cover 33 rotates about the rotation axis C, and the locking surface 51a and the locking surface 52a interact with each other. It functions as a guide surface to move to the locking position where it is locked to. Further, in this case, the tapered surface is the locking surface 51a or the locking surface with respect to the direction along the rotation locus of the upper cover 33 in a state where the locking surface 51a is in the locking position with the locking surface 52a. On the other side of the surface 52a, here, it faces the locking surface 52a with a gap. Further, in this case, the tapered surface abuts on the other side of the locking surface 51a or the locking surface 52a as the upper cover 33 rotates, and here, the locking surface 52a is brought into contact with the locking surface 51a to guide the locking surface 51a to the locking position. do.

1 Electrical junction box 2 Electronic components 3 Housing 4 Rotating base end locking mechanism 5 Side wall locking mechanism 31 Frame (housing body)
31b, 31c Opening 31e Second side wall (main body side wall)
33 Upper cover (closure member)
33e Second side wall (side wall of lid member)
51 Frame side locking portion 51a Locking surface (main body locking surface)
52 Cover side locking portion 52a Locking surface (closure member locking surface)
52b Tapered surface 52c Gap C Rotating axis W Wire distribution material WH Wire harness X 1st direction Y 2nd direction (axis direction)
Z third direction

Claims (5)

The housing body with the opening and
A lid member that closes the opening and
A rotation base end locking mechanism that rotatably locks the lid member to the housing body about the rotation axis along the axis direction as a rotation center.
With respect to the main body side wall portion extending along the direction intersecting the axial direction in the housing main body in a state where the housing main body and the lid member are locked by the rotation base end locking mechanism. A side wall locking mechanism for non-rotatably locking a side wall of a lid member extending along a direction intersecting the axial direction of the lid member is provided.
The side wall locking mechanism includes a main body locking surface provided on the main body side wall side, a lid member locking surface provided on the lid member side wall side, and the main body locking surface or the lid member locking surface. One of them is positioned on the side opposite to the rotation axis side with an inclination with respect to the one, and is integrally formed with the one. As the lid member rotates, the one is moved in the axial direction. It has a tapered surface that moves along the main body locking surface and the lid member locking surface to a locking position where they are mutually locked.
The tapered surface was formed as an inclined plane in which the offset amount with respect to the one gradually increased as the distance from the rotation axis increased, and the one and the tapered surface were formed with the rotation of the lid member. While guiding the entire locking part in a plane, drop it to the locking position side,
The side wall locking mechanism is a locking mechanism for locking the housing body and the lid member, and is a locking mechanism other than the rotating base end locking mechanism and the side wall locking mechanism. Compared to the mechanism, it is characterized in that it is located on the most tip side of the rotation locus formed by the lid member .
Housing. The tapered surface has a gap between the main body locking surface and the other of the lid member locking surface in a direction along the rotation locus of the lid member while one of the tapered surfaces is in the locking position. Facing
The housing according to claim 1. The tapered surface abuts on the other of the main body locking surface or the lid member locking surface as the lid member rotates, and guides the one to the locking position.
The housing according to claim 1 or 2. With electronic components
It is equipped with a housing for accommodating the electronic components inside.
The housing is
The housing body with the opening and
A lid member that closes the opening and
A rotation base end locking mechanism that rotatably locks the lid member to the housing body about the rotation axis along the axis direction as a rotation center.
With respect to the main body side wall portion extending along the direction intersecting the axial direction in the housing main body in a state where the housing main body and the lid member are locked by the rotation base end locking mechanism. A side wall locking mechanism for non-rotatably locking a side wall of a lid member extending along a direction intersecting the axial direction of the lid member is provided.
The side wall locking mechanism includes a main body locking surface provided on the main body side wall side, a lid member locking surface provided on the lid member side wall side, and the main body locking surface or the lid member locking surface. One of them is positioned on the side opposite to the rotation axis side with an inclination with respect to the one, and is integrally formed with the one. As the lid member rotates, the one is moved in the axial direction. It has a tapered surface that moves along the main body locking surface and the lid member locking surface to a locking position where they are mutually locked.
The tapered surface was formed as an inclined plane in which the offset amount with respect to the one gradually increased as the distance from the rotation axis increased, and the one and the tapered surface were formed with the rotation of the lid member. While guiding the entire locking part in a plane, drop it to the locking position side,
The side wall locking mechanism is a locking mechanism for locking the housing body and the lid member, and is a locking mechanism other than the rotating base end locking mechanism and the side wall locking mechanism. Compared to the mechanism, it is characterized in that it is located on the most tip side of the rotation locus formed by the lid member .
Electrical junction box. Conductive wiring material and
It is equipped with an electrical junction box that is electrically connected to the wiring material.
The electrical junction box
Electronic components that are electrically connected to the wiring material and
It is equipped with a housing for accommodating the electronic components inside.
The housing is
The housing body with the opening and
A lid member that closes the opening and
A rotation base end locking mechanism that rotatably locks the lid member to the housing body about the rotation axis along the axis direction as a rotation center.
With respect to the main body side wall portion extending along the direction intersecting the axial direction in the housing main body in a state where the housing main body and the lid member are locked by the rotation base end locking mechanism. A side wall locking mechanism for non-rotatably locking a side wall of a lid member extending along a direction intersecting the axial direction of the lid member is provided.
The side wall locking mechanism includes a main body locking surface provided on the main body side wall side, a lid member locking surface provided on the lid member side wall side, and the main body locking surface or the lid member locking surface. One of them is positioned on the side opposite to the rotation axis side with an inclination with respect to the one, and is integrally formed with the one. As the lid member rotates, the one is moved in the axial direction. It has a tapered surface that moves along the main body locking surface and the lid member locking surface to a locking position where they are mutually locked.
The tapered surface was formed as an inclined plane in which the offset amount with respect to the one gradually increased as the distance from the rotation axis increased, and the one and the tapered surface were formed with the rotation of the lid member. While guiding the entire locking part in a plane, drop it to the locking position side,
The side wall locking mechanism is a locking mechanism for locking the housing body and the lid member, and is a locking mechanism other than the rotating base end locking mechanism and the side wall locking mechanism. Compared to the mechanism, it is characterized in that it is located on the most tip side of the rotation locus formed by the lid member .
Wire harness.

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