Wire harness attachment unit

Abstract

To disclose a wire harness attachment unit capable of attaching a wire harness with high space efficiency by reducing a gap between an attachment target and the wire harness.SOLUTION: A wire harness attachment unit includes a holding member 18 disposed on a wall part 16 and a held member 20 to be attached to a wire harness 12. The held member 20 includes a fixation part 38 fixed to the wire harness 12, a coupling projection part 40 projecting from the fixation part 38, and an engagement part 42 having a flat shape extending from the coupling projection part 40. The holding member 18 includes a front plate part 28 placed on the wall part 16 with an engagement part insertion gap 26 therebetween, and a slit 32 disposed in the front plate part 28. A width dimension B of the slit is set to be larger than a width dimension D of the coupling projection part 40, and is set to be smaller than a width dimension C of the engagement part 42. The engagement part 42 of the held member 20 is disposed so as to be inserted into the engagement part insertion gap 26, and the coupling projection part 40 is disposed so as to be inserted into the slit 32, whereby the held member 20 is attached to the holding member 18.SELECTED DRAWING: Figure 3

Description

[Technical field]

[0001] The present disclosure relates to a wire harness mounting unit. [Background technology]

[0002] Patent Document 1 discloses a resin band clip used to attach a wire harness mounted on a vehicle to a mounting hole provided on a mounting target such as a panel inside the vehicle. The band clip has a belt and a buckle to be tied to the wire harness, and an arrowhead-shaped clip part protruding from the buckle. When the clip part of the band clip tied to the wire harness is pressed into the mounting hole in the thickness direction of the panel, the clip part elastically deforms and passes through the mounting hole, and after passing through the mounting hole, the clip part elastically returns to its original state, so that the clip part engages with the back side of the panel. As a result, the clip part is fitted into the panel, and the wire harness can be fixed in an appropriate position on the panel. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2015-52338 A Summary of the Invention [Problem to be solved by the invention]

[0004] However, in the band clip described in Patent Document 1, since the clip portion needs to be press-fitted in the thickness direction of the panel into the mounting hole provided in the panel to which the wire harness is to be attached, it is necessary to secure a large working space on the opposite side of the mounting hole to the mounting object in the press-fitting direction. Therefore, for example, when the wire harness is routed inside the housing of a battery pack or other equipment and the mounting object of the wire harness is the wall of the housing, there is a problem that a large dead space is generated inside the housing.

[0005] In addition, if it is not possible to form a mounting hole through the wall of the housing, the metal fittings that form the mounting hole must protrude inward from the wall of the housing, while a space capable of accommodating the arrowhead-shaped clip portion must be provided between the wall and the mounting hole formed through the protruding end face of the fittings, which could result in the problem of an even larger dead space being created inside the housing.

[0006] In view of this, a wire harness mounting unit is disclosed that can reduce the gap between the mounting object and the wire harness and mount the wire harness space-efficiently. [Means for solving the problem]

[0007] The wire harness mounting unit of the present disclosure includes a holding member provided on a wall portion that is an attachment target to which a wire harness is attached, and a held member that is attached to the wire harness and held by the holding member, the held member having a fixing portion fixed to the wire harness, a connecting protrusion protruding from the fixing portion in a radial direction outward of the wire harness, and a flat engaging portion that is held by a protruding end of the connecting protrusion and extends to an outer circumferential side of the connecting protrusion, and the holding member has a front plate portion disposed opposite the wall portion across an engaging portion insertion gap through which the engaging portion can be inserted. and a slit formed in the front plate portion as a notch and opening to a first edge portion of the front plate portion, wherein in a direction perpendicular to the opening direction of the slit to the first edge portion, the width dimension of the slit is set to be larger than the width dimension of the connecting protrusion and smaller than the width dimension of the engaging portion, and the held member is assembled to the holding member by inserting the engaging portion of the held member into the engaging portion insertion gap of the holding member from the first edge portion side of the front plate portion and inserting the connecting protrusion into the slit. Effect of the Invention

[0008] According to the present disclosure, it is possible to provide a wire harness mounting unit that can mount the wire harness in a space-efficient manner by reducing the gap between the mounting target and the wire harness. [Brief description of the drawings]

[0009] [Figure 1] FIG. 1 is a perspective view showing a wire harness mounting unit according to the first embodiment. [Diagram 2] FIG. 2 is an enlarged perspective view showing a main part of the wire harness mounting unit shown in FIG. [Diagram 3] 3 is a perspective view showing a disassembled state of the wire harness mounting unit shown in FIG. 1 before a held member is held by a holding member. [Figure 4] FIG. 4 is an enlarged perspective view showing a main part of the wire harness mounting unit according to the second embodiment. [Diagram 5] FIG. 5 is a plan view of a main part of the wire harness mounting unit shown in FIG. [Figure 6] FIG. 6 is an enlarged plan view showing a main part of the wire harness mounting unit according to the third embodiment. [Figure 7] 7 is a perspective view showing a held member constituting the wire harness mounting unit shown in FIG. 6 in a separate state before being held by a holding member. [Figure 8] FIG. 8 is an enlarged perspective view showing a main part of the wire harness mounting unit according to the fourth embodiment. [Figure 9] 9 is a perspective view showing a held member constituting the wire harness mounting unit shown in FIG. 8 in a separate state before being held by a holding member. [Figure 10] FIG. 10 is an enlarged perspective view showing a main part of the wire harness mounting unit according to the fifth embodiment. [Figure 11] FIG. 11 is an enlarged perspective view showing a main part of the wire harness mounting unit according to the sixth embodiment. [Figure 12] FIG. 12 is an enlarged perspective view showing a main part of the wire harness mounting unit according to the seventh embodiment. [Figure 13]FIG. 13 is an enlarged perspective view showing a main part of the wire harness mounting unit according to the eighth embodiment. [Figure 14] FIG. 14 is an enlarged perspective view showing a main part of the unit set according to the present disclosure. [Figure 15] FIG. 15 is a plan view of a main part of the unit set shown in FIG. [Figure 16] FIG. 16 is an enlarged plan view showing a main part of another embodiment of a unit set according to the present disclosure. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0010] <Description of the embodiments of the present disclosure> First, embodiments of the present disclosure will be listed and described. The wire harness mounting unit of the present disclosure includes: (1) A wire harness is provided with a retaining member provided on a wall portion that is an attachment target to which a wire harness is attached, and a retained member that is attached to the wire harness and held by the retaining member, the retained member having a fixing portion fixed to the wire harness, a connecting protrusion protruding from the fixing portion in a radial direction outward of the wire harness, and a flat engaging portion that is held by a protruding end of the connecting protrusion and extends to an outer circumferential side of the connecting protrusion, the retaining member having a front plate portion disposed opposite the wall portion across an engaging portion insertion gap through which the engaging portion can be inserted, and a front plate portion disposed opposite the front plate portion. The front plate has a notch-shaped slit that opens into a first edge portion of the front plate, and in a direction perpendicular to the opening direction of the slit toward the first edge portion, the width dimension of the slit is set to be larger than the width dimension of the connecting protrusion and smaller than the width dimension of the engaging portion, and the held member is assembled to the holding member by inserting the engaging portion of the held member into the engaging portion insertion gap of the holding member from the first edge portion side of the front plate, and inserting the connecting protrusion into the slit.

[0011] The wire harness mounting unit of the present disclosure has a holding member provided on a wall portion to which a wire harness is attached, and a held member that is attached to the wire harness and held by the holding member. The holding member and the held member are assembled by inserting a flat engaging portion of the held member into an engaging portion insertion gap set between a front plate portion of the holding member and an opposing surface of the wall portion. That is, the slit provided on the front plate portion of the holding member has a width dimension set to be larger than the width dimension of the connecting protrusion and smaller than the width dimension of the engaging portion in a direction perpendicular to an opening direction of the first edge portion of the front plate portion. Therefore, the engaging portion of the held member is inserted and disposed from the first edge portion side of the front plate portion into the engaging portion insertion gap of the holding member, and the connecting protrusion is inserted and disposed in the slit, whereby the held member is assembled to the holding member, and the wire harness to which the held member is attached is attached to the wall portion on which the holding member is provided. More specifically, the displacement of the held member in the left-right direction (width direction of the slit) relative to the holding member is prevented by the connecting protrusion abutting against (the side wall of) the slit. Furthermore, the displacement of the held member in the front-rear direction (thickness direction of the wall) relative to the holding member is prevented by the engagement part abutting against the front plate and the wall.

[0012] Here, the engaging portion of the held member is flat, and the front plate of the holding member is merely disposed opposite the wall across an engaging portion insertion gap through which the engaging portion can be inserted. Therefore, the gap between the wall portion to be attached and the wire harness can be significantly reduced compared to the conventional structure in which an arrowhead-shaped clip portion is disposed protruding from the surface of the wire harness and a metal fitting that constitutes a mounting hole into which the clip portion is press-fitted protrudes inward from the wall portion.

[0013] In addition, when assembling the held member attached to the wire harness to the holding member provided on the wall to which it is to be attached, the engaging portion of the held member is inserted into the engaging portion insertion gap from the first edge side of the front plate of the holding member, and the connecting protrusion is inserted into the slit of the front plate until the connecting protrusion abuts against the bottom surface of the slit, completing the fitting of the held member to the holding member. Therefore, unlike the conventional structure, there is no need to secure a large working space on the inner side of the wall in the plate thickness direction, and the dead space for assembly work generated on the inner side of the wall can be advantageously reduced.

[0014] As a result, it is possible to provide a wire harness mounting unit that can mount a wire harness to an object with efficient space utilization.

[0015] The wall to which the wire harness is attached may include various walls arranged inside the vehicle, such as a wall of a housing for an in-vehicle device such as a battery pack, or a vehicle body panel.

[0016] The retained member attached to the wire harness may also have any shape as long as it can be attached to the wire harness, and may include any shape, such as a tongue-shaped member that is placed on the outer peripheral surface of the wire harness and secured in place with tape, or a protector-shaped member that is attached around the wire harness.

[0017] (2) In the above (1), it is preferable that the insertion end of the engaging portion of the held member into the engaging portion insertion gap is determined by the abutment of the connecting protrusion with the bottom surface of the slit. Since the insertion end of the engaging portion is determined by the abutment of the connecting protrusion with the bottom surface of the slit, the worker can easily recognize the completion of the insertion work of the engaging portion. Furthermore, by appropriately setting the bottom surface of the slit, the degree of freedom in setting the holding position of the wire harness in the wall portion can be improved.

[0018] (3) In the above (1) or (2), it is preferable that at least one of the wall portion and the front plate portion has a press-fit rib that protrudes toward the engagement portion insertion gap and presses against the engagement portion arranged in the engagement portion insertion gap. By providing the wall portion and / or the front plate portion with a press-fit rib that presses against the engagement portion, it is possible to absorb tolerances and suppress wobbling of the engagement portion arranged in the engagement portion insertion gap, and the wire harness can be stably attached. Note that the shape of the press-fit rib is not particularly limited, and it may be one that extends continuously in the insertion direction of the engagement portion, or one that is distributed in the insertion direction or in a direction intersecting the insertion direction.

[0019] (4) In any one of the above (1) to (3), it is preferable that the engaging portion has an elastic pressure-contact portion that is in contact with at least one of the wall portion and the front plate portion and elastically deforms toward the engaging portion. The elastic pressure-contact portion of the engaging portion is elastically deformed by contacting with the wall portion and / or the front plate portion, thereby absorbing tolerances and suppressing wobbling of the engaging portion disposed in the engaging portion insertion gap, and the wire harness can be stably attached. The shape of the elastic pressure-contact portion may be an elastic tongue shape that protrudes from the engaging portion in a cantilever shape, or may be an elastic rib shape that protrudes from the engaging portion.

[0020] (5) In any one of (1) to (4) above, it is preferable that the retaining member has a pair of side plate portions protruding in parallel from both side edges of the front plate portion toward the wall portion, the engaging portion has multiple pairs of parallel outer edge portions facing each other in a direction intersecting the protruding direction of the connecting protrusion, the gap in the opposing direction of the pair of side plate portions is slightly larger than the separation distance between the parallel outer edge portions of each pair, and the engaging portion is positioned in the engaging portion insertion gap in an orientation such that the pair of parallel outer edge portions selected from the multiple pairs of parallel outer edge portions are parallel to the pair of side plate portions of the retaining member.

[0021] The holding member has a pair of side plate portions, while the engaging portion has a plurality of pairs of parallel outer edge portions. Therefore, by selecting any pair of parallel outer edge portions from the plurality of pairs of parallel outer edge portions and inserting the engaging portion into the engaging portion insertion gap in an orientation such that the selected pair of parallel outer edge portions are parallel to the pair of side plate portions of the holding member, the wiring angle of the wire harness can be adjusted. That is, the held member attached to the wire harness oriented in a predetermined orientation is prevented from rotating around the connecting protrusion by the pair of parallel outer edge portions of the engaging portion of the held member abutting against the pair of side plate portions of the holding member. Therefore, the held member can be assembled to the holding member with the held member oriented in a desired orientation, and the wire harness can be wired while being held at a desired wiring angle.

[0022] (6) In any one of (1) to (5) above, it is preferable that the engaging portion of the held member has a first protruding portion protruding to one side of the connecting protrusion in the orthogonal direction and a second protruding portion protruding to the other side of the connecting protrusion with a protruding dimension larger than that of the first protruding portion, and the engaging portion insertion gap has a first gap protruding to one side of the slit in the orthogonal direction and expanding with a width dimension larger than the protruding dimension of the first protruding portion and smaller than the protruding dimension of the second protruding portion, and a second gap protruding to the other side of the slit and expanding with a width dimension larger than the protruding dimension of the second protruding portion.

[0023] The engaging portion of the held member has a first protruding portion and a second protruding portion that protrude with different protruding dimensions on one side and the other side of the connecting protrusion in a direction perpendicular to the opening direction of the slit, and the engaging portion insertion gap of the holding member is made different so that the width dimensions of the first gap and the second gap that spread on both sides of the slit in the perpendicular direction correspond to the first protruding portion and the second protruding portion, respectively. As a result, if an attempt is made to insert the engaging portion of the attached member attached to the wire harness in a direction opposite to the correct direction corresponding to the first and second gaps of the holding member, the second protruding portion of the engaging portion cannot be inserted into the first gap, and incorrect assembly can be reliably detected and eliminated.

[0024] (7) In any one of (1) to (6) above, it is preferable that the engaging portion of the held member has a first protruding portion protruding to one side of the connecting protrusion in the perpendicular direction, and a second protruding portion protruding to the other side of the connecting protrusion with a plate thickness dimension larger than that of the first protruding portion, and the engaging portion insertion gap has a first gap protruding to one side of the slit in the perpendicular direction and having a dimension larger than the plate thickness dimension of the first protruding portion and smaller than the plate thickness dimension of the second protruding portion, thereby arranging the wall portion and the front plate portion opposite each other, and a second gap protruding to the other side of the slit and having a dimension larger than the plate thickness dimension of the second protruding portion, thereby arranging the wall portion and the front plate portion opposite each other.

[0025] The engaging portion of the held member has a first protruding portion and a second protruding portion that protrude with different plate thickness dimensions on one side and the other side of the connecting protrusion in an orthogonal direction perpendicular to the opening direction of the slit. The engaging portion insertion gap of the holding member has a first gap and a second gap that arrange the wall portion and the front plate portion opposite each other so that the first protruding portion and the second protruding portion can be respectively accommodated on one side and the other side of the slit in the orthogonal direction. As a result, if an attempt is made to insert the engaging portion of the held member attached to the wire harness in a direction opposite to the correct direction corresponding to the first and second gaps of the holding member, the second protruding portion of the engaging portion cannot be inserted into the first gap, and incorrect assembly can be reliably detected and eliminated.

[0026] (8) In any one of (1) to (7) above, it is preferable that the retaining member is provided on an inner surface of a wall portion of an in-vehicle equipment constituting the wall portion, the opening direction of the slit is directed toward an opening of the in-vehicle equipment, and the engaging portion of the retained member extends on both sides of the connecting protrusion along the extension direction of the wire harness.

[0027] When the wall of the in-vehicle device to which the wire harness is attached is, for example, the wall of the housing of the battery pack, the holding member is provided on the inner surface of the wall of the housing of the battery pack, so that the wire harness arranged in the housing of the battery pack can be arranged in the small gap between the housing and the assembled battery in the battery pack. That is, in the wire harness mounting unit of the present disclosure, the engagement portion of the held member is flat, so that the projection dimension of the engagement portion from the fixing portion attached to the wire harness is reduced, and the height of the held member is reduced compared to the conventional structure having an arrowhead-shaped clip portion. In addition, since the opening direction of the slit of the holding member is directed toward the opening of the housing, and the engagement portion spreads on both sides of the connecting portion along the extension direction of the wire harness, the wire harness can be arranged and attached so as to extend along the circumferential direction of the wall of the housing by simply inserting and arranging the engagement portion of the held member into the engagement portion insertion gap of the holding member from above the opening of the housing. Therefore, the wiring of the wire harness in the housing can be performed with excellent space efficiency and workability.

[0028] (9) In any one of the above (1) to (8), it is preferable that a plurality of the held members are provided, and the engaging portions of the held members are arranged in a line in the length direction of the slit and attached to the engaging portion insertion gap of the holding member. A plurality of held members can be arranged in a line and attached to a single holding member, and a plurality of wire harnesses can be assembled more space-efficiently.

[0029] (10) In any one of the above (1) to (9), it is preferable that the held member has the fixing portion extending along the extension direction of the wire harness, and a plurality of the connecting protrusions and a plurality of the engaging portions provided at a plurality of positions spaced apart from each other in the length direction of the fixing portion, and the wall portion is provided with a plurality of the holding members provided at a plurality of positions spaced apart from each other, and the engaging portions of the held member are inserted and arranged in the engaging portion insertion gaps of the plurality of the holding members. When the wire harness needs to be held by a relatively large member such as a protector, the fixing portion of the held member can be formed by a member extending along the extension direction of the wire harness such as a protector, and a plurality of connecting protrusions and a plurality of engaging portions provided at a distance from each other in the length direction of the fixing portion can be provided. The wire harness can be held more stably by inserting and arranging the engaging portions into the engaging portion insertion gaps of the plurality of holding members.

[0030] (11) In the above (1), it is preferable that the insertion end of the engaging portion of the held member into the engaging portion insertion gap is determined by the engaging portion abutting against the bottom surface of the engaging portion insertion gap. Since the insertion end of the engaging portion is determined by the engaging portion abutting against the bottom surface of the engaging portion insertion gap, the area of ​​the abutting portion can be secured to be sufficiently large, and the worker can more easily recognize the completion of the insertion operation of the engaging portion. Furthermore, by appropriately setting the bottom surface of the engaging portion insertion gap, the degree of freedom in setting the holding position of the wire harness in the wall portion can be improved.

[0031] (12) In the above (1), it is preferable that the insertion end of the engaging portion of the held member into the engaging portion insertion gap is determined by at least one of pressing the engaging portion into the engaging portion insertion gap and pressing the connecting protrusion into the slit. Since the insertion end of the engaging portion into the engaging portion insertion gap is determined by pressing the engaging portion into the engaging portion insertion gap and / or pressing the connecting protrusion into the slit, for example, the engaging portion or the connecting protrusion does not come into contact with the bottom surface of the engaging portion insertion gap or the slit, and the holding position of the wire harness on the wall can be set arbitrarily.

[0032] The unit set of the present disclosure is (13) A unit set including a plurality of wire harness mounting units according to any one of (1) to (12) above, each of which has a combination detection section including a guide protrusion provided on one of the engaging portion and the wall portion and extending in the insertion direction of the engaging portion into the engaging portion insertion gap, and a guide groove provided on the other of the engaging portion and the wall portion and extending in the insertion direction, accommodating the guide protrusion to allow movement of the engaging portion in the insertion direction, and each of the plurality of wire harness mounting units has a different combination detection section.

[0033] In a unit set including a plurality of wire harness mounting units, the combination detection section provided in each wire harness mounting unit is different for each wire harness mounting unit. As a result, when the combination of the holding member and the held member of the wire harness mounting unit is correct, the insertion of the engagement section into the engagement section insertion gap is permitted when the wire harness mounting unit is assembled. When the combination of the holding member and the held member of the wire harness mounting unit is incorrect, the insertion of the engagement section into the engagement section insertion gap is prevented, and the mismatch of the combination of the holding member and the held member of the plurality of wire harness mounting units can be easily and stably detected. Note that the number of guide ridges and guide grooves constituting the combination detection section may be different in the plurality of wire harness mounting units constituting the unit set, and the shape, position, size, etc. of the guide ridges and guide grooves may be different.

[0034] (14) In the above (13), it is preferable that the plurality of wire harness mounting units each have a different number of the combination detection units. In a unit set configured to include a plurality of wire harness mounting units, the number of combination detection units provided in each wire harness mounting unit is different for each wire harness mounting unit. As a result, when the combination of the holding member and the held member of the wire harness mounting unit is correct, the numbers of guide ridges and guide grooves are equal and the insertion of the engaging portion into the engaging portion insertion gap is permitted when the wire harness mounting unit is assembled. When the combination of the holding member and the held member of the wire harness mounting unit is incorrect, the numbers of guide ridges and guide grooves are different and the insertion of the engaging portion into the engaging portion insertion gap is prevented, so that the incorrect combination of the holding member and the held member of the plurality of wire harness mounting units can be easily and stably detected.

[0035] <Details of the embodiment of the present disclosure> Specific examples of the wire harness mounting unit and unit set of the present disclosure will be described below with reference to the drawings. Note that the present disclosure is not limited to these examples, but is defined by the claims, and is intended to include all modifications within the meaning and scope of the claims.

[0036] <Embodiment 1> A wire harness mounting unit 10 according to a first embodiment of the present disclosure will be described below with reference to Figs. 1 to 3. The wire harness mounting unit 10 is for mounting a wire harness 12 to a wall (in the first embodiment, a peripheral wall 16 of a housing 14 of a battery pack provided in an electric vehicle or a hybrid vehicle) to which the wire harness 12 is to be mounted. Hereinafter, the up-down direction, the left-right direction, and the front-rear direction will be described as the up-down direction, the left-right direction, and the front-rear direction shown in the drawings. That is, in the first embodiment, the wire harness 12 extends in the left-right direction. Also, for multiple identical members, only some of the members may be labeled with a reference symbol, and the reference symbols may be omitted for the other members.

[0037] <Wire harness mounting unit 10> The wire harness mounting unit 10 comprises a holding member 18 provided on a wall portion (the peripheral wall portion 16 of the battery pack housing 14) to which the wire harness 12 is to be mounted, and a held member 20 attached to the wire harness 12 and held by the holding member 18.

[0038] The wire harness 12 is for connecting battery packs (not shown) housed in the housing 14 together, or for connecting a battery pack to other electric components, etc. The housing 14 is generally box-shaped and opens upward, and has a rectangular bottom wall 22 and a peripheral wall 16 that protrudes upward from the outer periphery of the bottom wall 22. That is, the upper end of the peripheral wall 16 is an upper opening 24 serving as an opening. The housing 14 is made of, for example, metal, and in the first embodiment, is made of aluminum (including an aluminum alloy).

[0039] <Retaining member 18> The holding member 18 has a front plate 28 disposed opposite to the wall portion (peripheral wall portion 16) across an engagement portion insertion gap 26 through which an engagement portion 42 (described later) of the held member 20 can be inserted, and a slit 32 cut into the front plate portion 28 and opening at an upper end portion 30 which is a first edge portion of the front plate portion 28. In the first embodiment, the holding member 18 is provided on the inner surface of the wall portion (peripheral wall portion 16) of the housing 14.

[0040] Specifically, the holding member 18 has a pair of side plate portions 34, 34 that protrude from both side edges (both side edges in the width direction (left-right direction)) of the front plate portion 28 toward the wall portion (peripheral wall portion 16) and extend in parallel. In other words, a pair of side plate portions 34, 34 that protrude toward the inner periphery of the housing 14 is provided on the inner surface of the peripheral wall portion 16, and the pair of side plate portions 34, 34 are separated from each other by a predetermined distance A (see FIG. 3) in the left-right direction. The protruding tips of the pair of side plate portions 34, 34 are connected to the front plate portion 28. The area surrounded by each of the side plate portions 34 and the front plate portion 28 is the engagement portion insertion gap 26. The lower ends of each of the side plate portions 34 and the front plate portion 28 are connected to the bottom wall portion 22, and in short, each of the side plate portions 34 and the front plate portion 28 is provided to protrude upward from the bottom wall portion 22.

[0041] In addition, a slit 32 that opens upward is provided at the upper end portion in the left-right central portion of the front plate portion 28. As a result, the opening direction of the slit 32 is directed toward the upper opening 24, which is the opening of the housing 14. The slit 32 has a predetermined vertical dimension, and is provided penetrating the front plate portion 28 in the thickness direction (front-rear direction). In particular, in the first embodiment, the bottom surface 36 of the engagement portion insertion gap 26 is provided at the same height (vertical position) as the bottom surface 35 (lower end surface) of the slit 32, and the bottom surface 35 of the slit 32 and the bottom surface 36 of the engagement portion insertion gap 26 are continuous. That is, the portion of the holding member 18 below the bottom surface 36 is solid. The width dimension (left-right dimension) B of the slit 32 (see FIG. 3) is smaller than the separation distance A of each side plate portion 34. The vertical dimension (depth dimension) of the slit 32 is not limited, and the vertical dimension of the slit 32 is set so that the wire harness 12 and the held member 20 are positioned at a desired height in the housing 14.

[0042] In the first embodiment, the housing 14 is a casting made of aluminum (including an aluminum alloy), and the housing 14 and the holding member 18 are integrally formed.

[0043] <Holded member 20> The held member 20 has a fixing portion 38 fixed to the wire harness 12, a connecting protrusion 40 protruding from the fixing portion 38 radially outward (rearward in the first embodiment) of the wire harness 12, and a flat engaging portion 42 held by a protruding end (rear end) of the connecting protrusion 40 and extending toward the outer periphery of the connecting protrusion 40. The held member 20 is formed of, for example, a hard synthetic resin.

[0044] The fixing portion 38 is a rectangular plate extending in the same direction as the wire harness 12, and in the first embodiment, is a plate elongated in the left-right direction. The wire harness 12 is overlapped and fixed to the fixing portion 38 from the front, and in the first embodiment, the wire harness 12 is fixed to the fixing portion 38 by wrapping a tape 44 around both ends of the fixing portion 38 in the length direction (left-right direction). The method of fixing the wire harness 12 to the fixing portion 38 is not limited, and a known fixing method such as adhesion or welding can be used.

[0045] Furthermore, a connecting protrusion 40 that protrudes rearward is provided at the center portion in the length direction (left-right direction) of the fixing portion 38. A flat plate-shaped engaging portion 42 is provided at the protruding end (rear end) of the connecting protrusion 40, and in the first embodiment, the engaging portion 42 is in the shape of a rectangular flat plate extending in the left-right direction. In the first embodiment, the vertical dimension of the connecting protrusion 40 and the engaging portion 42 is set equal to the vertical dimension of the fixing portion 38. As a result, the held member 20 as a whole has a substantially constant vertical dimension, and the vertical dimension of the held member 20 is smaller than the vertical dimension of the slit 32 in the holding member 18.

[0046] In particular, in the first embodiment, the connecting protrusion 40 is connected to the left-right central portion of the engaging portion 42, and the engaging portion 42 is formed with approximately equal protruding dimensions on both left and right sides from the connecting protrusion 40. That is, the engaging portion 42 of the held member 20 spreads on both sides of the connecting protrusion 40 along the extending direction (left-right direction) of the wire harness 12. The engaging portion 42 has a width dimension (left-right dimension) C (see FIG. 3) shorter than the fixing portion 38, and the connecting protrusion 40 has a width dimension (left-right dimension) D (see FIG. 3) shorter than the engaging portion 42. The left-right dimension D of the connecting protrusion 40 is set smaller than the width dimension B of the slit 32. In other words, in the orthogonal direction (left-right direction) perpendicular to the opening direction of the slit 32 to the first end edge portion (upper end portion 30), the width dimension B of the slit 32 is set larger than the width dimension D of the connecting protrusion 40 and smaller than the width dimension C of the engaging portion 42.

[0047] The size of the engaging portion 42 only needs to be such that it can be accommodated in the engaging portion insertion gap 26 formed between the peripheral wall portion 16 and the retaining member 18. That is, the width dimension C of the engaging portion 42 is set to be equal to or slightly smaller than the distance A between the opposing surfaces of the side plate portions 34. The thickness dimension (front-rear dimension) of the engaging portion 42 is set to be equal to or slightly smaller than the distance in the front-rear direction between the opposing surfaces of the inner surface of the peripheral wall portion 16 and the front plate portion 28. The width dimension C and thickness dimension of the engaging portion 42 may be set to be slightly larger than the width dimension and thickness dimension of the engaging portion insertion gap 26, and the engaging portion 42 may be press-fitted into the engaging portion insertion gap 26.

[0048] <Method of assembling the wire harness mounting unit 10> The following describes a specific example of a method for assembling the wire harness mounting unit 10. However, the method for assembling the wire harness mounting unit 10 is not limited to the following description.

[0049] First, the held member 20 to which the wire harness 12 is fixed at the fixing portion 38 and the holding member 18 provided on the housing 14 are placed opposite each other in the vertical direction as shown in Fig. 3. Then, the engaging portion 42 of the held member 20 is inserted into the engaging portion insertion gap 26 of the holding member 18 from the first edge portion (upper end portion 30) side of the front plate portion 28, and the connecting protrusion 40 is inserted into the slit 32. In this way, the held member 20 is assembled to the holding member 18 to form the wire harness mounting unit 10 as shown in Figs. 1 and 2.

[0050] Therefore, in the first embodiment, the insertion end of the engaging portion 42 of the held member 20 into the engaging portion insertion gap 26 is determined by the abutment of the connecting protrusion 40 against the bottom surface 35 of the slit 32, in other words, by the abutment of the lower surface of the engaging portion 42 against the bottom surface 36 of the engaging portion insertion gap 26. Note that the holding member 18 may be hollow over its entire length in the vertical direction, and the insertion end of the engaging portion 42 into the engaging portion insertion gap 26 may be determined by the abutment of the connecting protrusion 40 against the bottom surface 35 of the slit 32 when the holding member 18 and the held member 20 are assembled, which will be described later.

[0051] According to the wire harness mounting unit 10 of the first embodiment having such a structure, the engaging portion 42 is flat, and the dimension in the front-rear direction, which is the thickness direction of the engaging portion 42, can be made smaller than, for example, an arrowhead-shaped clip portion having a conventional structure. In particular, when the arrowhead-shaped clip portion is mounted on the inner surface of the peripheral wall portion of the housing as in the first embodiment, a metal fitting having a mounting hole into which the clip portion is press-fitted is required on the inner surface of the peripheral wall portion, and the dimension in the front-rear direction, which is the press-fit direction, is required to be large when mounting the clip portion to the metal fitting. However, in the first embodiment, it is only necessary to insert the engaging portion 42 into the engaging portion insertion gap 26 from above, so that the space required for mounting can be reduced. As a result, even when a battery pack (not shown) is accommodated inside the housing 14 and the surplus space inside the housing 14 is small, the wire harness 12 can be stably mounted to the peripheral wall portion 16 of the housing 14.

[0052] The insertion end of the engaging portion 42 into the engaging portion insertion gap 26 is determined by the abutment of the connecting protrusion 40 against the bottom surface 35 of the slit 32. In particular, in the first embodiment, the insertion end of the engaging portion 42 into the engaging portion insertion gap 26 is also determined by the abutment of the lower surface of the engaging portion 42 with the bottom surface 36 of the engaging portion insertion gap 26, so that the abutment over a wider area can more reliably determine the insertion end of the engaging portion 42 into the engaging portion insertion gap 26. As a result, the wire harness 12 attached to the held member 20 can be stably fixed at a desired vertical position on the peripheral wall portion 16.

[0053] The wall portion to which the wire harness 12 is attached is the peripheral wall portion 16 of the housing 14 of the battery pack, and the opening direction of the slit 32 in the holding member 18 is directed toward the upper opening 24 of the housing 14. The engaging portion 42 spreads along the extension direction (left-right direction) of the wire harness 12, and the spreading direction of the engaging portion 42 is a direction perpendicular to the opening direction (up-down direction) of the slit 32. This allows the engaging portion 42 to be inserted from the short side direction of the engaging portion 42 rather than being inserted from the long side direction into the engaging portion insertion gap 26, and the insertion amount of the engaging portion 42 required when inserting the engaging portion 42 into the engaging portion insertion gap 26 can also be reduced.

[0054] <Embodiment 2> A wire harness mounting unit 50 according to a second embodiment of the present disclosure will be described below with reference to Figures 4 and 5. The basic structure of the wire harness mounting unit 50 according to the second embodiment is similar to that of the first embodiment, and includes a holding member 52 and a held member 20. Since the structure of the held member 20 is similar to that of the first embodiment, the same reference numerals as those of the first embodiment are used in the drawings for substantially the same parts, and detailed description thereof will be omitted. The holding member 52 according to the second embodiment will be described below. Also, in the following embodiments, illustrations of the wire harness 12 and the tape 44 will be omitted.

[0055] <Retaining member 52> The basic structure of the holding member 52 is similar to that of the first embodiment, but the holding member 52 of the second embodiment has a press-fit rib 54 at the front plate portion 28, which protrudes toward the engagement portion insertion gap 26 and presses against the engagement portion 42 of the held member 20 arranged in the engagement portion insertion gap 26. Specifically, in the second embodiment, a pair of press-fit ribs 54, 54 protruding rearward toward the engagement portion insertion gap 26 and extending in the up-down direction are formed integrally with the front plate portion 28 (i.e., the housing 14) on both left and right sides of the slit 32 on the inner surface (rear surface) of the front plate portion 28. In particular, in the second embodiment, each press-fit rib 54 has a substantially semicircular cross-sectional shape and is provided over the entire length of the engagement portion insertion gap 26 in the up-down direction, i.e., from the upper end portion 30 of the front plate portion 28 to the bottom surface 36 of the engagement portion insertion gap 26.

[0056] In the second embodiment, a press-in rib 56 that protrudes toward the engagement portion insertion gap 26 and presses against the engagement portion 42 arranged in the engagement portion insertion gap 26 is also formed integrally with the housing 14 on the inner surface (front surface) of the peripheral wall portion 16 of the housing 14. The press-in rib 56 is provided between the press-in ribs 54 in the left-right direction, that is, the press-in rib 56 is formed at a left-right position that is substantially equal to the slit 32 formed in the front plate portion 28. The press-in rib 56 has a cross-sectional shape that is substantially the same as that of each press-in rib 54 (substantially semicircular), and is formed in the same manner as each press-in rib 54, over a vertical region that corresponds to the top end portion 30 of the front plate portion 28 and the bottom surface 36 of the engagement portion insertion gap 26.

[0057] The distance E (see FIG. 5) between the top of each press-fit rib 54 provided on the front plate portion 28 and the top of the press-fit rib 56 provided on the peripheral wall portion 16 in the front-rear direction is equal to or slightly smaller than the front-rear direction dimension of the engagement portion 42. As a result, when the engagement portion 42 is inserted into the engagement portion insertion gap 26 to assemble the holding member 52 and the held member 20, the press-fit ribs 54, 56 are pressed against both the front and rear surfaces of the engagement portion 42. Note that the thickness dimension (front-rear direction dimension) of the engagement portion 42 in the second embodiment can be smaller than the thickness dimension of the engagement portion 42 in the first embodiment, for example. In addition, the press-fit rib as described above may be provided only on at least one of the wall portion (peripheral wall portion 16 in the second embodiment) to which the wire harness 12 is attached and the front plate portion 28.

[0058] The wire harness mounting unit 50 of the second embodiment having the above-described structure has a basic structure similar to that of the first embodiment, and therefore can achieve the same effects as those of the first embodiment. In particular, in the second embodiment, the peripheral wall portion 16 and the front plate portion 28 are provided with the press-fit ribs 54, 56 that protrude toward the engagement portion insertion gap 26 and press against the engagement portion 42, and therefore the frictional force between the press-fit ribs 54, 56 and the engagement portion 42 can effectively prevent the held member 20 from falling off the holding member 52.

[0059] <Embodiment 3> A wire harness mounting unit 60 according to a third embodiment of the present disclosure will be described below with reference to Figures 6 and 7. The basic structure of the wire harness mounting unit 60 according to the third embodiment is similar to that of the first embodiment, and includes a holding member 18 and a held member 62. Since the structure of the holding member 18 is similar to that of the first embodiment, the same reference numerals as those of the first embodiment are used in the drawings for substantially the same parts, and detailed description thereof will be omitted. The held member 62 according to the third embodiment will be described below.

[0060] <Holded member 62> In the held member 62 of the third embodiment, the engaging portion 42 has an elastic pressure contact portion 64 that is elastically deformable toward the engaging portion 42 by contacting the wall portion (circumferential wall portion 16) to which the wire harness 12 is attached. Specifically, the elastic pressure contact portion 64 that protrudes rearward toward the peripheral wall portion 16 side is provided in the left-right central portion (connection portion with the connecting protrusion 40) of the substantially rectangular flat engaging portion 42. In particular, in the third embodiment, a pair of elastic pressure contact portions 64, 64 protrude rearward from the left-right central portion of the engaging portion 42 and extend outward on both left and right sides. The vertical dimension of each of these elastic pressure contact portions 64 is substantially equal to that of the fixing portion 38, the connecting protrusion 40, and the engaging portion 42, and the held member 62 in the third embodiment also has a constant vertical dimension over substantially the entirety.

[0061] Each elastic pressure contact portion 64 is formed relatively thin, and can elastically deform in the front-rear direction with the connection portion with the engaging portion 42 as a base point. Furthermore, as shown in Fig. 7, in the state of the held member 62 alone before being assembled to the holding member 18, the front-rear distance F (see Fig. 7) from the front surface of the engaging portion 42 to the rear surface of each elastic pressure contact portion 64 is equal to or slightly larger than the distance between the opposing surfaces in the front-rear direction between the inner surface of the peripheral wall portion 16 and the front plate portion 28. As a result, when the holding member 18 and the held member 62 are assembled, the engaging portion 42 and each elastic pressure contact portion 64 are inserted into the engaging portion insertion gap 26, so that each elastic pressure contact portion 64 comes into contact with the inner surface (front surface) of the peripheral wall portion 16, and each elastic pressure contact portion 64 is elastically deformed forward toward the engaging portion 42 side.

[0062] That is, in the wire harness mounting unit 60 of the third embodiment, the engagement portion 42 and each elastic pressure contact portion 64 are press-fitted into the engagement portion insertion gap 26, and therefore the same effect as in the second embodiment is achieved. In the embodiment shown in Figs. 6 and 7, each elastic pressure contact portion 64 protrudes rearward from the engagement portion 42 and abuts against the peripheral wall portion 16, which is a wall portion, to enable elastic deformation, but, for example, the elastic pressure contact portion may protrude forward from the engagement portion instead of or in addition to the rearward. When the elastic pressure contact portion protrudes forward from the engagement portion, it is only necessary that the elastic pressure contact portion abuts against the front plate portion and elastically deforms rearward toward the engagement portion side when inserted into the engagement portion insertion gap.

[0063] <Embodiment 4> A wire harness mounting unit 70 according to a fourth embodiment of the present disclosure will be described below with reference to Figures 8 and 9. The basic structure of the wire harness mounting unit 70 according to the fourth embodiment is similar to that of the first embodiment, and includes a holding member 18 and a held member 72. Since the structure of the holding member 18 is similar to that of the first embodiment, the same reference numerals as those of the first embodiment are used in the drawings for substantially the same parts, and detailed description thereof will be omitted. The held member 72 according to the fourth embodiment will be described below.

[0064] In the held member 72 in the fourth embodiment, the fixed portion 38 is rectangular plate-shaped like the first embodiment, and the connecting protrusion 74 protruding rearward from the fixed portion 38 is cylindrical. The connecting protrusion 74 is provided in the center of the fixed portion 38 in the left-right and up-down directions. The protruding end (rear end) of the connecting protrusion 74 is provided with an engagement portion 76 in the shape of a polygonal plate. In particular, in the fourth embodiment, the engagement portion 76 is regular octagonal when viewed in the front-rear direction, and has four pairs of parallel outer edge portions 78, 78 that face each other in a direction intersecting the protruding direction of the connecting protrusion 74, specifically, in a direction perpendicular to the front-rear direction. More specifically, as shown in FIG. 9, the engagement portion 76 has a pair of parallel outer edge portions 78a, 78a that face each other, another pair of parallel outer edge portions 78b, 78b, another pair of parallel outer edge portions 78c, 78c, and another pair of parallel outer edge portions 78d, 78d.

[0065] Here, the gap A in the opposing direction (left-right direction) of the pair of side plate portions 34, 34 of the holding member 18 is slightly larger than the separation distance G (see FIG. 9) between each pair of parallel outer edge portions 78, 78. The engaging portion 76 is disposed in the engaging portion insertion gap 26 so that a pair of parallel outer edge portions (e.g., parallel outer edge portions 78a, 78a) selected from the four pairs of parallel outer edge portions 78, 78 is parallel to the pair of side plate portions 34, 34. By selecting which of the four pairs of parallel outer edge portions 78, 78 is parallel to the pair of side plate portions 34, 34 in this manner, the orientation of the fixing portion 38 relative to the holding member 18, and therefore the orientation of the wire harness 12 relative to the housing 14, can be selected.

[0066] Specifically, as shown by straight lines in Fig. 8, the engaging portion 76 is disposed in the engaging portion insertion gap 26 so that the pair of parallel outer edge portions 78a, 78a are parallel to the pair of side plate portions 34, 34, whereby the fixing portion 38 and the wire harness 12 are arranged in a direction extending in the left-right direction. Also, as shown by dashed lines in Fig. 8, the engaging portion 76 is disposed in the engaging portion insertion gap 26 so that the pair of parallel outer edge portions 78b, 78b are parallel to the pair of side plate portions 34, 34, whereby the fixing portion 38 and the wire harness 12 are arranged in a direction inclined at 45 degrees with respect to the up-down direction and the left-right direction. Furthermore, as shown by dashed lines in Fig. 8, the engaging portion 76 is disposed in the engaging portion insertion gap 26 so that the pair of parallel outer edge portions 78c, 78c are parallel to the pair of side plate portions 34, 34, whereby the fixing portion 38 and the wire harness 12 are arranged in a direction extending in the up-down direction.

[0067] 8, when the pair of parallel outer edge portions 78a, 78a are parallel to the pair of side plate portions 34, 34, the lower parallel outer edge portion 78c abuts against the bottom surface 36 of the engagement portion insertion gap 26, thereby restricting the insertion of the engagement portion 76 into the engagement portion insertion gap 26. That is, in the fourth embodiment, one of the pair of parallel outer edge portions 78, 78 facing each other in a direction perpendicular to the pair of side plate portions 34, 34 abuts against the bottom surface 36 of the engagement portion insertion gap 26, thereby restricting the insertion of the engagement portion 76 into the engagement portion insertion gap 26. When the lower parallel outer edge portion 78c abuts against the bottom surface 36 of the engagement portion insertion gap 26, the connecting protrusion 74 does not abut against the bottom surface 35 of the slit 32, and is located in the middle of the slit 32 in the up-down direction. In addition, in embodiment 4, for example, the bottom surface 35 of the slit 32 may be located at a position higher than the bottom surface 36 of the engagement portion insertion gap 26, so that the connecting protrusion 74 and the bottom surface 35 of the slit 32 abut against each other, thereby restricting the insertion of the engagement portion 76 into the engagement portion insertion gap 26.

[0068] In particular, in the fourth embodiment, the gap A in the opposing direction (left-right direction) of the pair of side plate portions 34, 34 of the holding member 18 is slightly larger than the separation distance G between each pair of parallel outer edge portions 78, 78, and is smaller than the dimension of the longest diagonal line of the regular octagon. As a result, when the engaging portion 76 is inserted into the engaging portion insertion gap 26, each parallel outer edge portion 78 abuts against the inner surface of the engaging portion insertion gap 26 (the inner surface or bottom surface 36 of each side plate portion 34), thereby preventing the engaging portion 76 from rotating around the central axis (i.e., the connecting protrusion 74). Therefore, in the fourth embodiment, the engaging portion 76 is inserted and arranged in the engaging portion insertion gap 26 with the extension directions of the fixing portion 38 and the wire harness 12 set in advance.

[0069] The wire harness mounting unit 70 of the fourth embodiment having the above-mentioned structure has the same basic structure as the first embodiment, and therefore can achieve the same effects as the first embodiment. In particular, in the fourth embodiment, as described above, the extending direction of the fixing portion 38 and the wire harness 12 can be set, and after the holding member 18 and the held member 72 are assembled, the rotation of the held member 72 about the central axis with respect to the holding member 18 is prevented. This allows the wire harness 12 to be routed in a desired direction with respect to the housing 14, while preventing the direction of the wire harness 12 from being changed due to vehicle vibrations or the like.

[0070] <Embodiment 5> A wire harness mounting unit 80 according to a fifth embodiment of the present disclosure will be described below with reference to Fig. 10. The basic structure of the wire harness mounting unit 80 according to the fifth embodiment is similar to that of the first embodiment, and includes a holding member 82 and a held member 84. In Fig. 10, the held member 84 before being assembled to the holding member 82 is indicated by a two-dot chain line.

[0071] <Retaining member 82> In the first to fourth embodiments, the slit 32 is provided in the center of the width direction (left-right direction) of the front plate portion 28 in the holding member 18, 52, but in the fifth embodiment, the slit 86 is formed in the holding member 82 at a position biased to the right from the center of the width direction (left-right direction) of the front plate portion 88. That is, the engagement portion insertion gap 90 formed in the holding member 82 is composed of a first gap 92 that spreads to one side (right side) and a second gap 94 that spreads to the other side (left side) in the left-right direction perpendicular to the opening direction (up-down direction) of the slit 86. The second gap 94 has a larger width dimension than the width dimension (left-right dimension) of the first gap 92, and is formed with a larger space than the first gap 92.

[0072] <Holded member 84> In the first to fourth embodiments, the connecting protrusions 40, 74 are connected to the center portion in the width direction (left-right direction) of the engaging portions 42, 76, but in the fifth embodiment, the connecting protrusion 98 is connected to the engaging portion 96 at a position offset to the right from the center portion in the width direction (left-right direction). That is, the engaging portion 96 has a first protrusion 100 that protrudes to one side (right side) of the connecting protrusion 98, and a second protrusion 102 that protrudes to the other side (left side) of the connecting protrusion 98. The second protrusion 102 has a larger protrusion dimension outward in the left-right direction from the connecting protrusion 98 than the first protrusion 100.

[0073] Here, the width dimension of the first gap 92 is larger than the protruding dimension of the first protruding portion 100 and smaller than the protruding dimension of the second protruding portion 102. Moreover, the width dimension of the second gap 94 is larger than the protruding dimension of the second protruding portion 102. This allows the first protruding portion 100 to be inserted into the first gap 92 and the second protruding portion 102 to be inserted into the second gap 94, and as a result, the engaging portion 96 can be inserted into the engaging portion insertion gap 90. On the other hand, since the width dimension of the first gap 92 is smaller than the protruding dimension of the second protruding portion 102, it is not possible to insert the second protruding portion 102 into the first gap 92.

[0074] The wire harness mounting unit 80 of the fifth embodiment having the above-described structure has the same basic structure as that of the first embodiment, and therefore can achieve the same effects as those of the first embodiment. In particular, in the fifth embodiment, insertion in the correct direction, such as inserting the first protrusion 100 into the first gap 92 and the second protrusion 102 into the second gap 94, is permitted, while insertion in the opposite direction, such as inserting the second protrusion 102 into the first gap 92, is not permitted, and therefore the held member 84 can be prevented from being assembled to the holding member 82 in an incorrect direction.

[0075] <Embodiment 6> A wire harness mounting unit 110 according to a sixth embodiment of the present disclosure will be described below with reference to Fig. 11. The basic structure of the wire harness mounting unit 110 according to the sixth embodiment is similar to that of the first embodiment, and includes a holding member 112 and a held member 114. In Fig. 11, the held member 114 before being assembled to the holding member 112 is indicated by a two-dot chain line.

[0076] <Retaining member 112> In the first to fifth embodiments, the engagement portion insertion gaps 26, 90 in the holding members 18, 52, 82 have a generally constant front-rear dimension (the distance between the opposing surfaces of the inner surface of the peripheral wall portion 16 and the inner surface of the front plate portion 28, 88) over the entire length in the left-right direction, but in the sixth embodiment, the front-rear dimension in the holding member 112 is made different on both left-right sides of the slit 116. That is, the engagement portion insertion gap 118 formed in the holding member 112 is composed of a first gap 120 that protrudes to one side (the right side) and a second gap 122 that protrudes to the other side (the left side) in the left-right direction perpendicular to the opening direction (the up-down direction) of the slit 116. The front plate portion 124a located on one side (right side) of the slit 116 is located further rearward than the front plate portion 124b located on the other side (left side) of the slit 116, and the opposing distance in the fore-and-aft direction between the wall portion (circumferential wall portion 16) and the front plate portions 124a, 124b is made larger in the second gap 122 than in the first gap 120.

[0077] <Holded member 114> In the first to fifth embodiments, the thickness dimension (front-rear dimension) of the engagement portions 42, 76, 96 is constant over the entire length in the left-right direction, but in the sixth embodiment, the plate thickness dimension (front-rear dimension) of the engagement portion 126 is different on both the left and right sides of the connecting protrusion 128. That is, the engagement portion 126 has a first protrusion 130 that protrudes to one side (the right side) of the connecting protrusion 128, and a second protrusion 132 that protrudes to the other side (the left side) of the connecting protrusion 128. The plate thickness dimension (front-rear dimension) of the second protrusion 132 is made larger than that of the first protrusion 130.

[0078] Here, the facing dimension between the peripheral wall portion 16 and the front plate portion 124a in the first gap 120 is larger than the plate thickness dimension of the first protruding portion 130 and smaller than the plate thickness dimension of the second protruding portion 132. Also, the facing dimension between the peripheral wall portion 16 and the front plate portion 124b in the second gap 122 is larger than the plate thickness dimension of the second protruding portion 132. As a result, the first protruding portion 130 can be inserted into the first gap 120, and the second protruding portion 132 can be inserted into the second gap 122, and as a result, the engaging portion 126 can be inserted into the engaging portion insertion gap 118. On the other hand, the facing dimension between the peripheral wall portion 16 and the front plate portion 124a in the first gap 120 is smaller than the plate thickness dimension of the second protruding portion 132, so that the second protruding portion 132 cannot be inserted into the first gap 120.

[0079] The wire harness mounting unit 110 of the sixth embodiment having the above-described structure has the same basic structure as the first embodiment, and therefore can achieve the same effects as the first embodiment. In particular, in the sixth embodiment, insertion in the correct direction, such as inserting the first protrusion 130 into the first gap 120 and inserting the second protrusion 132 into the second gap 122, is permitted, while insertion in the opposite direction, such as inserting the second protrusion 132 into the first gap 120, is not permitted, and therefore it is possible to prevent the held member 114 from being assembled to the holding member 112 in an incorrect direction.

[0080] <Embodiment 7> A wire harness mounting unit 140 according to a seventh embodiment of the present disclosure will be described below with reference to Fig. 12. The wire harness mounting unit 140 according to the seventh embodiment includes a plurality of held members 20, 20', and the respective engagement portions 42, 42' of the held members 20, 20' are arranged side by side in the length direction (up-down direction) of the slit 32 and attached to the engagement portion insertion gaps 144 in the holding member 142.

[0081] In particular, in the seventh embodiment, the opposing dimensions in the left-right direction of each side plate portion 34 are different in the vertical direction, and the opposing dimensions in the left-right direction of each side plate portion 34 are smaller in the lower portion than in the upper portion of the slit 32. As a result, in the seventh embodiment, bottom surfaces 36, 36' having different widthwise dimensions (left-right dimensions) are provided in the vertical direction of the slit 32, and the widthwise dimension of the bottom surface 36' in the lower portion is smaller than the bottom surface 36 in the upper portion of the slit 32. In short, in the seventh embodiment, the widthwise dimension of the bottom surfaces 36, 36' of the engagement portion insertion gap 144 becomes smaller in stages from the top to the bottom. The bottom surfaces 36, 36' are spaced apart from each other at a predetermined distance in the vertical direction.

[0082] In the wire harness mounting unit 140 in the seventh embodiment, the held member 20' having an engaging portion 42' with a small width dimension is first inserted into the engaging portion insertion gap 144 in the holding member 142, and the engaging portion 42' is placed on the bottom surface 36' with a small width dimension. Then, the held member 20 having an engaging portion 42 with a large width dimension is inserted into the engaging portion insertion gap 144, and the engaging portion 42 is placed on the bottom surface 36 with a large width dimension. As a result, in the seventh embodiment, two held members 20, 20' are assembled to one holding member 142 at a predetermined distance in the up-down direction.

[0083] The wire harness mounting unit 140 of the seventh embodiment constructed as described above has the same basic structure as that of the first embodiment, and therefore can achieve the same effects as those of the first embodiment. In particular, in the seventh embodiment, the two held members 20, 20' are attached to a common holding member 142, and the structure of the housing 14 can be simplified compared to a case in which the held members 20, 20' are attached to separate holding members, and the wire harnesses 12 fixed to the held members 20, 20' can be routed in the housing 14 with good space efficiency.

[0084] <Embodiment 8> A wire harness mounting unit 150 according to an eighth embodiment of the present disclosure will be described below with reference to Fig. 13. In the wire harness mounting unit 150 according to the eighth embodiment, the held member 152 has a fixing portion 38 extending along the extension direction (left-right direction) of the wire harness 12. Furthermore, this fixing portion 38 is provided with a plurality of connecting protrusions 40 at positions spaced apart from one another in the length direction, and an engaging portion 42 is connected to each connecting protrusion 40. In particular, in the eighth embodiment, the connecting protrusions 40 and the engaging portions 42 are provided at both ends of the fixing portion 38 in the length direction.

[0085] Furthermore, holding members 18 are provided at a plurality of mutually spaced locations on the peripheral wall 16 of the housing 14. The structure of the holding members 18 is similar to that of the first embodiment, and therefore description thereof will be omitted. In the eighth embodiment, holding members 18 are provided at two mutually spaced locations on the peripheral wall 16 in the left-right direction.

[0086] Then, the engaging portions 42 provided at both ends of the held member 152 in the length direction are inserted into the engaging portion insertion gaps 26 provided in each holding member 18, and the held member 152 is assembled to each holding member 18 to form the wire harness mounting unit 150. The basic structure of the wire harness mounting unit 150 of the eighth embodiment is similar to that of the first embodiment, so that the same effects as those of the first embodiment can be achieved. In particular, in the eighth embodiment, the connecting protrusions 40 and the engaging portions 42 are provided at both ends of the length direction of the fixing portion 38 and fixed to each holding member 18, so that even if the held member 152 has a relatively long length, it can be stably fixed to the peripheral wall portion 16. Note that, when the held member has a relatively long length as in the eighth embodiment, the mounting target of the wire harness to which the holding member is provided may be a member having a relatively long length, such as a protector.

[0087] <Unit Set 160> The unit set 160 of the present disclosure will be described below with reference to Figures 14 and 15. The unit set 160 includes a plurality (two) of wire harness mounting units 162, 164, one of which, the wire harness mounting unit 162, is shown in the upper part of Figures 14 and 15, and the other wire harness mounting unit 164 is shown in the lower part of Figures 14 and 15.

[0088] As a structure common to these two wire harness mounting units 162, 164, each wire harness mounting unit 162, 164 includes a holding member 18 and held members 166, 168. The holding member 18 has the same structure as in the first embodiment, and therefore a description thereof will be omitted. Each held member 166, 168 also has the same basic structure as in the first embodiment, and includes a fixing portion 38 to which the wire harness 12 is fixed, a connecting protrusion 40 protruding from the fixing portion 38, and an engaging portion 42 provided at the protruding end of the connecting protrusion 40.

[0089] In each of the wire harness mounting units 162, 164, the peripheral wall portion 16 serving as a wall portion is provided with a guide rib 170 extending in the vertical direction, which is the insertion direction of each engaging portion 42 into the engaging portion insertion gap 26. Each engaging portion 42 is provided with a guide groove 172 extending in the vertical direction and accommodating the guide rib 170 to allow the engaging portion 42 to move in the vertical direction. The guide rib 170 and the guide groove 172 form a combination detection portion 174.

[0090] More specifically, in the wire harness mounting unit 162 shown in the upper part of Figs. 14 and 15, one guide protrusion 170 extending in the vertical direction is provided on the inner surface (front surface) of the peripheral wall portion 16, and one guide groove 172 extending in the vertical direction is formed in the left-right central portion of the rear surface of the engagement portion 42. As a result, one combination detection portion 174 is provided in the wire harness mounting unit 162. On the other hand, in the wire harness mounting unit 164 shown in the lower part of Figs. 14 and 15, two guide protrusions 170, 170 extending in the vertical direction are provided on the inner surface (front surface) of the peripheral wall portion 16, and two guide grooves 172, 172 extending in the vertical direction are formed on both left-right side portions of the rear surface of the engagement portion 42. As a result, two combination detection portions 174, 174 are provided in the wire harness mounting unit 164.

[0091] In the unit set 160 constructed as above, the wire harness mounting units 162, 164 have a different number of combination detection parts 174. Therefore, for example, even if an attempt is made to insert a lower held member 168 into an upper holding member 18 in Figs. 14 and 15, the engaging part 42 cannot be inserted into the engaging part insertion gap 26 because the guide groove 172 is not formed in the left-right central part of the engaging part 42. Similarly, even if an attempt is made to insert an upper held member 166 into a lower holding member 18 in Figs. 14 and 15, the engaging part 42 cannot be inserted into the engaging part insertion gap 26 because the guide groove 172 is not formed in both left-right side parts of the engaging part 42.

[0092] In this manner, in the unit set 160, only the engaging portion 42 having the guide groove 172 corresponding to each guide protrusion 170 can be inserted into the engaging portion insertion gap 26 in each wire harness mounting unit 162, 164, and the held members 166, 168 on different sides in each wire harness mounting unit 162, 164 cannot be inserted. As a result, for example, it is possible to prevent the held members 166, 168, and therefore the wire harness 12, from being routed incorrectly between the different wire harness mounting units 162, 164. Note that the wall portion to which the wire harness 12 is attached in each wire harness mounting unit 162, 164 may be common, and for example, the wire harness mounting units 162, 164 may be formed at different positions in the left-right direction with respect to the same peripheral wall portion 16.

[0093] <Modification> As the above, the wire harness mounting units 10, 50, 60, 70, 80, 110, 140, 150 and the unit set 160 described in the first to eighth embodiments have been described in detail as specific examples of the present disclosure, but the present disclosure is not limited to these specific descriptions. Modifications, improvements, etc. within the scope of achieving the object of the present disclosure are included in the present disclosure. For example, the following modified examples of the embodiments are also included in the technical scope of the present disclosure.

[0094] (1) In the above embodiment, the peripheral wall 16 of the battery pack housing 14 is given as an example of the wall to which the wire harness 12 is attached, but the present invention is not limited to this. For example, the wall may be a vehicle body panel or a box-shaped on-board device other than a battery pack, such as a high-voltage management unit (high-voltage distribution unit), or a wall of an electric drive unit that houses a motor, a reducer, an inverter, a converter (DC / DC, AC / DC, etc.), an on-board charger, a battery management system, a vehicle controller, etc.

[0095] (2) The held member constituting the wire harness mounting unit only needs to have a fixing portion, a connecting protrusion, and a flat-plate-shaped engaging portion, and the shapes of the fixing portion and the connecting protrusion are not limited. In the above embodiment, the fixing portion 38 is rectangular and flat, and the wire harness 12 is fixed to the fixing portion 38 by wrapping the tape 44 around it, but the shape of the fixing portion is not limited, and the method of fixing the fixing portion and the wire harness is not limited either. The fixing portion may be, for example, a rectangular and flat plate-shaped one as in the above embodiment, or a protector-shaped one that is attached around the wire harness or a cable tie-shaped one with a buckle.

[0096] (3) In the above embodiment, the slit 32 opens upward, and the held member 20, 20', 62, 72, 84, 114, 152 is inserted from above, but the opening direction of the slit is not limited to upward, and may be downward or sideways. Even if the slit opens sideways, the held member can be made smaller than, for example, an arrowhead-shaped clip portion in a conventional structure, and the space required to assemble the held member to the holding member can be reduced.

[0097] (4) In the second embodiment, the cross-sectional shape of the press-fit rib 54 is not limited to a semicircle, and may be a polygonal shape such as a triangle or a rectangle. The press-fit rib does not need to be provided continuously over the entire vertical length of the engagement portion insertion gap, and may be provided partially in the vertical direction, or may be provided intermittently over the entire vertical length. Similarly, in the third embodiment, the shape of the elastic pressure-contact portion 64 is not limited, and may be an elastic rib shape.

[0098] (5) In the fourth embodiment, the shape of the engagement portion 76 when viewed in the front-rear direction is not limited to a regular octagon, and may be a rectangle (rectangle) or a regular hexagon, etc.

[0099] (6) The wire harness mounting units 10, 50, 60, 70, 80, 110, 140, 150 described in the first to eighth embodiments may be used in combination of two or more. For example, when the engaging portions and the engaging portion insertion gaps are provided spaced apart from each other in the left-right direction as in the eighth embodiment, one of the engaging portions and the engaging portion insertion gaps may have the structure as in the first embodiment, and the other engaging portion and the engaging portion insertion gap may have the structure as in the second embodiment.

[0100] (7) In the unit set 160 shown in Figs. 14 and 15, the number of combination detection parts 174 (i.e., guide ribs 170 and guide grooves 172) is different in each of the wire harness mounting units 162 and 164, but this is not limited to the embodiment. For example, as in the unit set 180 shown in Fig. 16, the shapes of the guide ribs 188a and 188b and the guide grooves 190a and 190b constituting the combination detection parts 186a and 186b may be different in each of the wire harness mounting units 182 and 184. Specifically, as shown in Fig. 16, in the wire harness mounting unit 182 shown on one side (upper part in Fig. 16), the guide ribs 188a and the guide grooves 190a have a semicircular cross-sectional shape, whereas in the wire harness mounting unit 184 shown on the other side (lower part in Fig. 16), the guide ribs 188b and the guide grooves 190b have a rectangular cross-sectional shape. This prevents the retained members 192a, 192b on different sides from being inserted into the engagement portion insertion gaps 26a, 26b in each of the wire harness mounting units 182, 184, thereby preventing the incorrect retained members 192a, 192b, and therefore the wire harness 12, from being routed. In this manner, in the unit set according to the present disclosure, it is sufficient that the multiple wire harness mounting units each have a combination detection unit with a different aspect, and the guide ridges and guide grooves can be different in number, shape, position, size, etc.

[0101] (8) In the first embodiment, when the engaging portion 42 is inserted into the engaging portion insertion gap 26, the insertion end is determined by the lower surface of the engaging portion 42 abutting against the bottom surface 36 of the engaging portion insertion gap 26 and the lower surface of the connecting protrusion 40 abutting against the bottom surface 35 of the slit 32, but this is not limited to this aspect. That is, when the engaging portion is inserted into the engaging portion insertion gap, the engaging portion does not have to abut against the bottom surface of the engaging portion insertion gap, and the connecting protrusion does not have to abut against the bottom surface of the slit, and the insertion end of the engaging portion may be determined by at least one of the engaging portion being pressed into the engaging portion insertion gap and the connecting protrusion being pressed into the slit. In short, when the engaging portion is pressed into the engaging portion insertion gap, the connecting protrusion does not have to be pressed into the slit, and when the connecting protrusion is pressed into the slit, the engaging portion does not have to be pressed into the engaging portion insertion gap. In addition, the press-fitting of the engaging portion into the engaging portion insertion gap may be, for example, such that the engaging portion is compressed in the left-right direction, the front-rear direction, or both. By adopting such a structure, the held member and the wire harness can be fixed at any height position relative to the holding member, regardless of the height position of the bottom surface of the engaging portion insertion gap or the bottom surface of the slit. [Explanation of symbols]

[0102] 10 Wire harness mounting unit (embodiment 1) 12 Wire Harness 14. Chassis 16 Peripheral wall (wall) 18 Retaining member 20,20' Held member 22 Bottom wall 24 Upper opening (opening) 26, 26a, 26b Engagement part insertion gap 28 Front plate part 30 Upper end (first edge) 32 Slit 34 Side plate part 35 (Slit) Bottom 36,36' (the bottom surface of the engagement gap) 38 Fixed part 40 Connecting protrusion 42,42' Engagement part 44 Tape 50 Wire harness mounting unit (embodiment 2) 52 Retaining member 54,56 Press-fit rib 60 Wire harness mounting unit (embodiment 3) 62 Holding member 64 Elastic pressure joint 70 Wire harness mounting unit (embodiment 4) 72 Held member 74 Connecting protrusion 76 Engagement part 78, 78a, 78b, 78c, 78d Parallel outer edges 80 Wire harness mounting unit (embodiment 5) 82 Retaining member 84 Holding member 86 Slit 88 Front plate part 90 Engagement insertion gap 92 First Gap 94 Second Gap 96 Engagement part 98 Connecting protrusion 100 1st protrusion 102 Second protrusion 110 Wire harness mounting unit (embodiment 6) 112 Retaining member 114 Held member 116 Slit 118 Engagement insertion gap 120 First Gap 122 Second Gap 124a,124b Front plate part 126 Engagement part 128 Connecting protrusion 130 1st protrusion 132 Second protrusion 140 Wire harness mounting unit (embodiment 7) 142 Retaining member 144 Engagement insertion gap 150 Wire harness mounting unit (Embodiment 8) 152 Held member 160 Unit Set (Fig. 14, 15) 162,164 Wire harness mounting unit 166,168 Holding member 170 Guide rib 172 Guide groove 174 Combination detection unit 180 Unit set (Fig. 16) 182,184 Wire harness mounting unit 186a, 186b combination detection unit 188a, 188b Guide ribs 190a, 190b Guide groove 192a,192b Retained member

Claims

1. A holding member provided on a wall portion to which the wire harness is attached; a held member that is attached to the wire harness and held by the holding member, The held member has a fixing portion fixed to the wire harness, a connecting protrusion protruding radially outward from the fixing portion, and a flat engaging portion held by a protruding end of the connecting protrusion and extending outward from an outer circumferential side of the connecting protrusion, the retaining member has a front plate portion disposed opposite the wall portion across an engagement portion insertion gap through which the engagement portion can be inserted, and a slit formed in the front plate portion as a notch and opening at a first edge portion of the front plate portion, a width dimension of the slit is set to be larger than a width dimension of the connecting protrusion and smaller than a width dimension of the engagement portion in a direction perpendicular to an opening direction of the slit toward the first end edge portion, A wire harness mounting unit in which the held member is assembled to the holding member by inserting the engaging portion of the held member into the engaging portion insertion gap of the holding member from the first end edge side of the front plate portion and by inserting the connecting protrusion into the slit.

2. 2. The wire harness mounting unit according to claim 1, wherein an end of the engaging portion of the held member that is inserted into the engaging portion insertion gap is defined by the connection protrusion abutting against a bottom surface of the slit.

3. 3. The wire harness mounting unit according to claim 1, wherein at least one of the wall portion and the front plate portion has a press-in rib protruding toward the engagement portion insertion gap and pressingly contacting the engagement portion arranged in the engagement portion insertion gap.

4. 3. The wire harness mounting unit according to claim 1, wherein the engaging portion has an elastic pressure-contact portion that is in contact with at least one of the wall portion and the front plate portion and is elastically deformable toward the engaging portion.

5. The holding member has a pair of side plate portions that protrude from both side edges of the front plate portion toward the wall portion and extend in parallel, The engaging portion has a plurality of pairs of parallel outer edge portions opposed to each other in a direction intersecting a protruding direction of the connecting protrusion, A gap between the pair of side plate portions in the opposing direction is slightly larger than a distance between the parallel outer edge portions of each pair, The wire harness mounting unit according to claim 1 or claim 2, wherein the engaging portion is positioned in the engaging portion insertion gap in an orientation such that a pair of parallel outer edge portions selected from the plurality of pairs of parallel outer edge portions are parallel to the pair of side plate portions of the retaining member.

6. the engaging portion of the held member has a first protruding portion protruding toward one side of the connecting protrusion in the orthogonal direction, and a second protruding portion protruding toward the other side of the connecting protrusion with a protruding dimension larger than that of the first protruding portion, 3. The wire harness mounting unit according to claim 1, wherein the engagement portion insertion gap has a first gap that protrudes to one side of the slit in the perpendicular direction and extends with a width dimension that is greater than the protruding dimension of the first protruding portion and smaller than the protruding dimension of the second protruding portion, and a second gap that protrudes to the other side of the slit and extends with a width dimension that is greater than the protruding dimension of the second protruding portion.

7. the engaging portion of the held member has a first protruding portion protruding toward one side of the connecting protrusion in the perpendicular direction, and a second protruding portion having a plate thickness dimension larger than that of the first protruding portion protruding toward the other side of the connecting protrusion, 3. The wire harness mounting unit according to claim 1, wherein the engagement portion insertion gap has a first gap that protrudes to one side of the slit in the perpendicular direction and positions the wall portion and the front plate portion opposite each other with a dimension that is greater than the plate thickness dimension of the first protrusion and smaller than the plate thickness dimension of the second protrusion, and a second gap that protrudes to the other side of the slit and positions the wall portion and the front plate portion opposite each other with a dimension that is greater than the plate thickness dimension of the second protrusion.

8. the holding member is provided on an inner surface of a wall portion of the wall portion, the wall portion being a part of the in-vehicle device, and an opening direction of the slit is directed toward an opening of the in-vehicle device, 3. The wire harness mounting unit according to claim 1, wherein the engaging portion of the held member extends to both sides of the connecting protrusion in an extending direction of the wire harness.

9. A plurality of the held members are provided, 3. The wire harness mounting unit according to claim 1, wherein the engaging portions of the plurality of held members are attached to the engaging portion insertion gaps of the holding member in a line along the length of the slit.

10. the held member has the fixing portion extending along an extending direction of the wire harness, and a plurality of the connecting protrusions and a plurality of the engaging portions provided at a plurality of positions spaced apart from each other in a longitudinal direction of the fixing portion, a plurality of the holding members provided at a plurality of positions spaced apart from each other on the wall portion; 3. The wire harness mounting unit according to claim 1, wherein the plurality of engaging portions of the held member are inserted into the engaging portion insertion gaps of the plurality of holding members, respectively.

11. 2. The wire harness mounting unit according to claim 1, wherein an end of the engaging portion of the held member that is inserted into the engaging portion insertion gap is defined by the engaging portion abutting against a bottom surface of the engaging portion insertion gap.

12. The wire harness mounting unit as described in claim 1, wherein the insertion end of the engaging portion of the held member into the engaging portion insertion gap is determined by at least one of the engaging portion being pressed into the engaging portion insertion gap and the connecting protrusion being pressed into the slit.

13. A unit set including a plurality of the wire harness mounting units according to claim 1 or 2, Each of the wire harness mounting units includes a combination detection section including a guide protrusion provided on one of the engaging portion and the wall portion and extending in an insertion direction of the engaging portion into the engaging portion insertion gap, and a guide groove provided on the other of the engaging portion and the wall portion and extending in the insertion direction, accommodating the guide protrusion to allow movement of the engaging portion in the insertion direction, A unit set, wherein each of the plurality of wire harness mounting units has a different combination detection portion.

14. The unit set according to claim 13 , wherein each of the plurality of wire harness mounting units has a different number of the combination detection portions.

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