Storage box

Abstract

The objective is to provide a housing box that can suppress the generation of abnormal noise caused by interference between wire harnesses routed in the routing space and other components. [Solution] The electrical connection box 20 comprises a housing body 21 which constitutes the outer frame of a housing having a routing space D in which a part of the wire harness 11 is routed, and a first block 30A which is assembled inside the housing body 21 and constitutes the housing together with the housing body 21, and two insertion fixing parts 242 for holding the wire harness 11 are provided at a predetermined distance apart. The first block 30A is provided with a fixing part 50 which fixes the wire harness 11 routed in the routing space D by a fixing band 40 which is wrapped around the holding parts of the wire harness 11 held by the insertion fixing parts 242.

Description

Technical Field

[0001] This invention relates to a housing box for housing a part of a wire harness routed in a vehicle, for example.

Background Art

[0002] A part of the wire harness routed in a vehicle is housed in a housing box such as a protector or an electrical connection box. As such a housing box, for example, an electrical connection box disclosed in Patent Document 1 has an electrical circuit housed therein and electrically connects the wire harness to the electrical circuit.

[0003] The electrical connection box disclosed in Patent Document 1 has a configuration in which divided bodies divided in the vertical direction are assembled. The divided bodies are provided with semi-hole portions that form insertion ports through which the wire harness is inserted by being assembled in the vertical direction. And, in one of the pair of semi-hole portions, a fixing portion for attaching a band for winding around the wire harness and fixing it with the band is provided.

[0004] Both ends of the fixing portion are arranged inside both ends of the semi-hole portion when viewed from the insertion direction of the wire harness. For this reason, it is said that the wire harness can be arranged and fixed inside the semi-hole portion, and when the divided bodies are assembled, it is possible to prevent the semi-hole portion from biting into the wire harness.

[0005] However, in the electrical connection box disclosed in Patent Document 1, due to the vibration of the vehicle, the wire harness routed inside the housing box may interfere with other members housed in the electrical connection box, resulting in the generation of abnormal noise.

Prior Art Documents

Patent Documents

Patent Document 1

[0007] The purpose of this invention is to provide a housing box that can suppress the generation of abnormal noise caused by interference between wire harnesses routed in a routing space and other components. [Means for solving the problem]

[0008] This invention is characterized in that the housing comprises an outer frame of a housing having a routing space in which a portion of a wire harness is routed, and an assembly member assembled inside the outer frame of the housing to constitute the housing together with the outer frame of the housing, wherein a plurality of holding parts for holding the wire harness are provided at predetermined intervals, and the assembly member is provided with a fixing part for fixing the wire harness routed in the routing space by a band that wraps around at least two of the holding parts of the wire harness held by the holding parts.

[0009] The outer frame of the housing box only needs to be able to accommodate assembly components inside, and includes, for example, a center case in an electrical connection box that houses a part of the wire harness, a lower case and an upper case that are assembled to the center case to constitute the electrical connection box, a protector body of a protector that inserts and protects the wire harness, and a cover that closes the opening of the protector body. The aforementioned electrical connection box includes junction boxes, fuse boxes, relay boxes, etc., which are mounted on vehicles.

[0010] The assembly member is a member that is inserted into the outer frame of the housing box and assembled and fixed to the outer frame of the housing box, and includes, for example, a cassette block that is assembled to the center case in an electrical connection box, or a member that is assembled to a protector.

[0011] The holding portion is a structure for holding the wire harness and may be provided, for example, as an insertion opening that connects the wiring space to the outside and allows the wire harness to be inserted into the wiring space, on the inner wall of the outer frame of the housing box, on the assembly member, or on other assembly members housed in the outer frame of the housing box.

[0012] Furthermore, the holding portion has a structure that holds a part of the wire harness, and includes, for example, a connector connection portion that connects to a connector terminal provided at the tip of the wire harness, and a fixing portion that fastens a cable tie that is wrapped around the wire harness and used to secure the assembly member, an assembly member different from the assembly member, the outer frame of the housing box, etc.

[0013] This invention makes it possible to suppress the generation of abnormal noise caused by interference between wire harnesses routed in a routing space and other components. More specifically, the wiring harness is provided with multiple holding parts that hold it at predetermined intervals. Furthermore, the assembly member that is assembled inside the outer frame of the housing box is provided with fixing parts that secure the spaces between the holding parts of the wiring harness held by the holding parts with a band. As a result, the spaces between the holding parts of the wiring harness can be fixed to the fixing parts of the assembly member assembled to the outer frame of the housing box, thereby suppressing movement of the wiring harness due to vehicle vibrations, etc. Therefore, it is possible to suppress the generation of abnormal noise due to interference between the wiring harness housed in the housing space and other components. In addition, since interference between the wiring harness and other components is suppressed, damage to other components can also be suppressed.

[0014] Furthermore, since the assembly components can be attached to the outer frame of the housing box after the wire harness has been fixed to the fixing part, the wire harness can be easily routed within the housing space.

[0015] In one aspect of this invention, the fixing portion may be provided at a position that intersects with the straight line connecting the holding portions. This invention allows fixing parts to be placed at positions other than the straight line connecting the holding parts, thereby improving the degree of freedom in the routing path of the wire harness.

[0016] Furthermore, when the wire harness is routed in a curved manner, the space between the retaining parts of the wire harness becomes more flexible compared to when the wire harness is routed in a straight line connecting the retaining parts. Because the space between these easily movable retaining parts of the wire harness can be fixed with a fixing part, the degree of freedom in the routing path of the wire harness can be improved, while further suppressing the generation of abnormal noise caused by interference between the wire harness and other components.

[0017] In another aspect of this invention, the fixing portion may be provided on the outer edge portion of the assembly member that faces the outer frame of the storage box when the assembly member is assembled to the outer frame of the storage box. This invention ensures that even if the space between the outer edge of the assembly member and the outer frame of the housing box is narrow, the parts of the wire harness that are routed in the routing space can be securely fixed. Therefore, the degree of freedom in routing the wire harness is improved, and the inside of the outer frame of the housing box can be utilized more effectively.

[0018] More specifically, since the assembly member is assembled to the outer frame of the housing box, the parts of the wire harness that are held can be secured with a band to the fixing part provided on the assembly member, and then the assembly member can be assembled to the outer frame of the housing box. In other words, even if the space between the outer edge of the assembly member and the outer frame of the housing box is narrow, the wire harness can be securely fixed in the routing space and routed along the outer frame of the housing box. As a result, the space between the holding parts of the wire harness can be freely routed without being affected by the position of the assembly member inside the outer frame of the housing box, and the inside of the outer frame of the housing box can be used more effectively. Therefore, the degree of freedom in routing the wire harness in the routing space can be improved, and the degree of freedom in design when arranging other components inside the outer frame of the housing box can also be improved.

[0019] Also, as an aspect of the present invention, the fixing portion includes an arranging portion for arranging the wire harness, and an insertion portion through which a band for winding around the arranging portion and the wire harness and fixing the wire harness to the arranging portion is inserted. In the assembling state, the wire harness is routed along the outer frame of the housing box in the arranging portion, and the insertion portion may penetrate in a direction orthogonal to the routing direction of the wire harness routed in the arranging portion.

[0020] According to the present invention, by inserting a band through an insertion portion penetrating in a direction orthogonal to the routing direction, the wire harness can be easily fixed to the assembling member. Therefore, in the assembled state where the assembling member is assembled to the outer frame of the housing box, the wire harness can be fixed along the inner peripheral surface of the outer frame of the housing box facing the outer edge portion of the assembling member. Therefore, the wire harness can be routed in a state close to the outer frame of the housing box, and the internal space and routing space of the outer frame of the housing box can be more effectively utilized.

[0021] Also, as an aspect of the present invention, the fixing portion may be provided with a regulating portion that stands upright along the outer frame of the housing box from the outer edge portion of the assembling member in the assembling state. According to the present invention, in the assembled state, since the regulating portion is provided between the wire harness and the outer frame of the housing box, it is possible to more reliably suppress the interference between the wire harness and the outer frame of the housing box, and it is possible to more reliably suppress the generation of abnormal noise due to the interference between the wire harness and the inner peripheral surface of the outer frame of the housing box.

[0022] Also, as an aspect of the present invention, the regulating portion may have an arc surface formed in an arc shape when viewed from the routing direction. According to the present invention, in the state where the wire harness is arranged in the arranging portion, the band can be wound around the wire harness and the regulating portion, so that the wire harness can be firmly and stably fixed to the regulating portion via the band.

[0023] Also, as an aspect of the present invention, the assembling member may be constituted by a cassette block to which an electronic component is connected. According to this invention, since the wire harness can be fixed to the heavy cassette block, the wire harness can be more stably fixed in the accommodation space. Therefore, the movement of the wire harness due to vibration or the like can be more reliably suppressed.

Effect of the Invention

[0024] According to this invention, it is possible to provide a storage box that can suppress the generation of abnormal noises caused by interference between a wire harness routed in a wiring space and other members.

Brief Description of the Drawings

[0025] [Figure 1] Schematic perspective view of an electrical connection box with a harness. [Figure 2] Schematic exploded perspective view of an electrical connection box with a harness. [Figure 3] Schematic exploded perspective view of an electrical connection box with a harness in a state where the cassette block is removed. [Figure 4] Explanatory drawing of the fixing part. [Figure 5] Explanatory drawing of the fixing part. [Figure 6] Explanatory drawing of the process of fixing the wire harness to the fixing part. [Figure 7] Explanatory drawing of the process of fixing the wire harness to the fixing part. [Figure 8] Schematic perspective view before attaching the cassette block with the wire harness fixed thereto to the case body. [Figure 9] Schematic plan view after attaching the cassette block with the wire harness fixed thereto to the case body. [Figure 10] Schematic cross-sectional view after attaching the cassette block with the wire harness fixed thereto to the case body. <C

Mode for Carrying Out the Invention

[0026] One embodiment of this invention will be described below together with FIGS. 1 to 10. Figure 1 shows a schematic perspective view of the electrical junction box 1 with harness, Figure 2 shows a schematic exploded perspective view of the electrical junction box 1 with harness in an open state, and Figure 3 shows a schematic exploded perspective view of the electrical junction box 1 with harness with block 30 removed. Figures 4 and 5 show explanatory diagrams of the fixing part 50. Figures 6 and 7 show explanatory diagrams of the process of routing the wire harness 11 to the fixing part 50 and fixing the wire harness 11 with fixing bands 40. Figure 8 shows a schematic perspective view of the first block 30A with the wire harness 11 fixed to the fixing part 50 before it is attached to the housing box body 21. Figure 9 shows a schematic plan view after the first block 30A with the wire harness 11 fixed to the fixing part 50 is attached to the housing box body 21, and Figure 10 shows a cross-sectional view taken along arrow BB in Figure 9.

[0027] Figures 4 to 7 will be described in detail. Figure 4(a) shows a schematic plan view of the first block 30A, and Figure 4(b) shows an enlarged schematic perspective view of the area in the first block 30A where the fixing part 50 is provided. Figure 5(a) shows an enlarged schematic plan view of the area in the first block 30A where the fixing part 50 is provided, and Figure 5(b) shows a cross-sectional view taken along the arrow AA in Figure 5(a).

[0028] Figure 6(a) shows a schematic cross-sectional view of the wire harness 11 in the arrangement section 51, and Figure 6(b) shows a schematic cross-sectional view of the wire harness 11 in the arrangement section 51 with the band 41 inserted through the connecting section 54. Figure 7 shows a schematic cross-sectional view of the wire harness 11 fixed to the fixing section 50. Note that Figures 6(a), 6(b), and 7 show cross-sectional views corresponding to the cross-section taken along arrow AA in Figure 5(a).

[0029] Here, in Figure 1, the vertical direction is defined as the height direction H, and the direction perpendicular to the height direction H and through which the harness 10 is inserted into the electrical connection box 20 is defined as the insertion direction W. The direction perpendicular to both the insertion direction W and the height direction H is defined as the longitudinal direction L. In Figure 1, along the longitudinal direction L, the left side is defined as the front end LA, and the right side as the rear end LB. Along the insertion direction W, the left side is defined as the left side WL, and along the insertion direction W, the right side is defined as the right side WR. Furthermore, since the electrical connection box 1 with harness is mounted upside down when installed in a vehicle, in Figure 1, along the height direction H, the lower side is defined as the upper side HU, and the upper side is defined as the lower side HD. The above directions are the same for the corresponding directions in Figures 2 to 10.

[0030] As shown in Figures 1 to 3, the wiring harness with electrical connection box 1 consists of a wiring harness 10 routed to the vehicle and an electrical connection box 20 that houses a portion of the wiring harness 10. The harness 10 consists of a wire harness 11 that electrically connects the electrical equipment mounted on the vehicle to the electrical junction box 20, and an outer covering material 12 through which the wire harness 11 is inserted and which is held in place by the electrical junction box 20.

[0031] The wire harness 11 is constructed by bundling together multiple insulated wires, each in which a conductor is surrounded by an insulating coating, and is routed along a predetermined routing path in the vehicle. In this embodiment, the wire harness 11 is constructed by bundling together multiple insulated wires, but it may also consist of a single insulated wire, or it may be constructed by bundling a communication cable together with an insulated wire.

[0032] The outer casing 12 is a cylindrical resin corrugated tube through which the wire harness 11 is inserted. More specifically, the outer casing 12 is composed of a bellows structure in which large-diameter sections, whose outer surface protrudes outward along its entire circumference, and small-diameter sections, whose outer surface is recessed inward along its entire circumference, are arranged alternately and continuously along the insertion direction W.

[0033] As shown in Figures 1 to 3, the electrical junction box 20 is a housing through which the harness 10 is inserted in the insertion direction W, and which also houses various electrical circuit units such as relays and fuses. More specifically, as shown in Figures 1 and 2, the electrical connection box 20 consists of a concave housing body 21 having an opening on the lower HD, a cover 22 that closes the opening on the lower HD of the housing body 21, and a plurality of blocks 30 that can be assembled to the housing body 21.

[0034] In the electrical connection box 20 that constitutes such a housing, harness insertion portions 23 are provided on the outer circumferential surfaces of the leading edge LA and left side WL, and the rear end LB and right side WR, so as to straddle the boundary between the housing box body 21 and the cover 22, allowing the harness 10 to be inserted in the insertion direction W.

[0035] The housing box body 21 is a concave box-shaped body having a roughly rectangular bottom surface in plan view and sides that rise from the outer edge of the bottom surface downward HD, and has an internal space S for housing electronic components that form an electrical circuit, such as busbars and fuses (see Figure 3).

[0036] An upper insertion portion 24 is provided at the corner of the housing box body 21, which constitutes the upper HU of the harness insertion portion 23. More specifically, one upper insertion portion 24 is provided at the lower end of the housing box body 21, which forms the boundary with the cover 22, and at the corner portion between the front end LA and the left side WL, and at the lower end of the housing box body 21, and at the corner portion between the rear end LB and the right side WR.

[0037] The upper insertion portion 24 at the corner of the rear end LB and the right side WR is a roughly semicircular cylindrical shape having an inner diameter approximately equal to the outer diameter of the large diameter portion of the exterior material 12, and protrudes from the housing box body 21 toward both sides in the insertion direction W. In addition, the upper insertion portion 24 at the corner of the rear end LB and the right side WR has a locking rib 241 that protrudes toward the downward HD and is provided on the inner circumferential surface of the outer portion in the insertion direction W. Furthermore, an insertion fixing portion 242 is provided on the inside in the insertion direction W of the upper insertion portion 24 at the corner of the rear end LB and the right side WR for band fixing the harness 10 that passes through the electrical connection box 20 with a fixing band 40 (see Figures 2 and 3).

[0038] The locking rib 241 is a rib that, when viewed from the front, is roughly U-shaped, protruding downward from the inner circumferential surface of the upper insertion portion 24 toward the lower HD, and the tip portion of the locking rib 241 forms a semicircle with an inner diameter that is roughly equal to the outer diameter of the small diameter portion of the exterior material 12.

[0039] Three locking ribs 241 having this shape are arranged in a row in the insertion direction W on the outside of the upper insertion portion 24, at intervals approximately equal to the spacing between the large-diameter portions of the exterior material 12. Therefore, the locking ribs 241 can be locked to the small-diameter portions of the exterior material 12 on the upper insertion portion 24 that protrudes outward in the insertion direction W from the side wall of the storage box body 21.

[0040] On the other hand, the upper insertion portion 24 at the corner of the leading edge LA and the left side WL is a roughly semicircular cylindrical shape having an inner diameter approximately equal to the outer diameter of the wire harness 11, and protrudes outward from the housing box body 21 in the insertion direction W. Furthermore, the upper insertion portion 24 at the corner of the leading edge LA and the left side WL does not have a locking rib 241 on the inner circumferential surface of the outer portion in the insertion direction W. The leading edge portion of the upper insertion portion 24 at the corner of the leading edge LA and the left side WL, on the outer side in the insertion direction W, is provided with an insertion fixing portion 242 for band-securing the harness 10 that passes through the electrical connection box 20 with a fixing band 40 (see Figures 2 and 3).

[0041] The housing box body 21, which is box-shaped with an opening at the bottom HD, is equipped with electrical circuits such as busbars, and the block 30 can be inserted from the bottom HD, assembled, and fixed inside (see Figures 2 and 3).

[0042] Block 30 is a so-called cassette block that has busbars inside to form a desired electrical circuit and can mount various electronic components such as relays and fuses connected to the busbars on its upper side HU. The height H of block 30 is sufficiently lower than the height (height H) of the side of the housing box body 21. Therefore, when block 30 is assembled to the housing box body 21, a wiring space D for routing the wire harness 11 is formed on the lower side HD of block 30 (see Figure 2). Block 30 also has connector connection parts on the lower side HD for connecting connectors provided at the ends of branch wires branched from the wire harness 11 (not shown).

[0043] Here, of the three blocks 30, the block 30 arranged along the longitudinal direction L on the left side WL will be designated as the first block 30A. Similarly, the block 30 arranged along the longitudinal direction L on the right side WR will be designated as the second block 30B, and the block 30 arranged along the insertion direction W on the rear end side LB will be designated as the third block 30C.

[0044] As shown in Figure 4(a), the first block 30A is a roughly rectangular block body with its longer side in the longitudinal direction L in a plan view, and fixing portions 50 for band-securing the wire harness 11 with fixing bands 40 are provided near the corner portions of the rear end side LB and the left side WL.

[0045] The fixing band 40 is a so-called cable tie, and comprises a flexible, strip-shaped band 41 and a buckle 42 to which the base end of the band 41 is connected, and which allows the tip portion of the band 41 to be inserted and secured (see Figure 6(b)).

[0046] As shown in Figures 4(b), 5(a), and 5(b), the fixing portion 50 includes an arrangement portion 51 for arranging the wire harness 11, a restricting portion 52 that rises from the outer edge of the left side WL of the arrangement portion 51 downward to the HD, and a guide recess 53 that is recessed in the right side WR of the restricting portion 52.

[0047] The arrangement section 51 is provided near the corner portion of the rear end LB and left side WL in the first block 30A, and has an arrangement surface 511 on the end face of the lower side HD of the fixing section 50 for arranging the wire harness 11. In addition, the central portion of the arrangement section 51 in the longitudinal direction L, or more specifically, the central portion of the arrangement section 51 in the longitudinal direction L and a portion of the left side WL, has a hollow insertion space formed such that an opening is formed on the upper side HU (see Figure 5(b)).

[0048] In the arrangement section 51 configured in this way, the outer edge portion of the left side WL is provided with a restricting section 52 that is erected on the lower side HD. As shown in Figures 4(b), 5(a), and 5(b), the end face of the left WL of the restricting portion 52 is flush with the end face of the left WL of the fixing portion 50, and the right WR of the restricting portion 52 has a quarter-circular arc shape. In other words, the restricting portion 52 has an arc-shaped surface 521 on its right WR that is convex to the left WL and the upper HU when viewed from the tip side LA (see Figure 5(b)).

[0049] Furthermore, although the plate thickness of the restricting portion 52 (length in the insertion direction W) tapers sharply towards the downward HD, even the narrowest upper end portion has a predetermined width. That is, the arcuate surface 521 is located on the right side WR at a predetermined distance from the end face of the left side WL of the fixing portion 50 (see Figure 5(b)).

[0050] As shown in Figures 4(b) and 5(b), a notch 522 is provided at the end of the left side WL of the restricting portion 52, where the central part in the longitudinal direction L is cut out in the height direction H. The notch 522 extends from the upper end of the restricting portion 52 to a part of the lower side HD of the placement portion 51. Here, the central part in the longitudinal direction L of the restricting portion 52 corresponds to the left side WL of the central part in the longitudinal direction L of the placement portion 51 as described above. Therefore, the insertion space formed on the upper side HU of the restricting portion 52 communicates with the outside of the left side WL of the fixing portion 50 via the notch 522.

[0051] Furthermore, as shown in Figures 4(b), 5(a), and 5(b), the right-side WR of the regulating portion 52 is recessed in the upper HU in the central part of the longitudinal direction L. The surface of the upper HU of the regulating portion 52 in this recessed area (protruding surface 523) protrudes upward from the placement surface 511. That is, the protruding surface 523 protrudes into the insertion space (see Figure 5(b)).

[0052] More specifically, as shown in Figure 5(b), the protruding surface 523 is inclined upward towards the left WL as it moves from the end of the right WR to the left WL. Furthermore, in the left WL from the point corresponding to the central portion of the insertion direction W in the arc surface 521, it curves downward towards the left WL and moves downward towards the HD. In other words, the central portion of the regulating portion 52 in the longitudinal direction L is formed in a roughly J-shape in cross-section.

[0053] As shown in Figures 4(b), 5(a), and 5(b), the guide recess 53 is a groove formed by recessing the upper HU at a location corresponding to the central part of the longitudinal L of the regulating portion 52 on the right side WR of the regulating portion 52. More specifically, the guide recess 53 is a groove that gradually slopes towards the upper HU as it moves from the right side WR towards the left side WL, towards the protruding surface 523, and communicates with the insertion space. The left side WL end of the guide recess 53 extends to the vicinity of the right side WR of the regulating portion 52, and together with the regulating portion 52, forms an opening that communicates with the insertion space. That is, the fixing portion 50 is provided with a communication portion 54 that communicates from the opening formed by the regulating portion 52 and the guide recess 53 through the insertion space to the outside of the left side WL of the placement portion 51 (see Figure 5(b)).

[0054] The cover 22 is a lid that closes the opening of the lower HD of the storage box body 21 when assembled to the storage box body 21, and is configured to be able to be locked to the storage box body 21 (not shown). When assembled to the storage box body 21, the cover 22 is provided with two lower insertion portions 25 at positions opposite to the upper insertion portion 24.

[0055] The lower insertion portion 25 is a roughly semicircular cylindrical shape having an inner diameter approximately equal to that of the opposing upper insertion portion 24, and protrudes outward from the cover 22 in the insertion direction W. At the corner portion of the lower insertion portion 25 between the rear end LB and the right side WR, a rib of the same shape as the locking rib 241 is provided opposite the locking rib 241 (not shown). Therefore, the harness insertion portion 23 of the rear end LB and the right side WR, which is composed of the upper insertion portion 24 and the lower insertion portion 25, can hold the outer material 12 through which the wire harness 11 is inserted when the housing box body 21 and the cover 22 are assembled.

[0056] Next, a method for routing the harness 10 to the electrical junction box 20 configured in this way will be explained based on Figures 6 to 10. First, with the first block 30A removed from the cover 22, the wire harness 11 is secured to the fixing part 50 with a band.

[0057] Specifically, the wire harness 11 is placed on the placement surface 511 (see Figure 6(a)), and the band 41 is pushed in so that it follows the guide recess 53. As a result, the band 41 is guided by the guide recess 53 and inserted into the communication portion 54 through the opening formed by the restricting portion 52 and the guide recess 53 (see Figure 6(b)).

[0058] Then, by further pushing the band 41 inserted through the communication portion 54, the tip of the band 41 can be led out from the notch 522 to the left side WL (see Figure 6(b)). In other words, the tip of the band 41 can be led out to the outside of the left side WL of the first block 30A.

[0059] Next, the band 41, which has been led out to the left side WL of the first block 30A, is pulled downward HD, and the band 41 is guided along the restricting portion 52, allowing it to be inserted into the buckle 42. This allows the band 41 to be wrapped around the wire harness 11 placed in the placement portion 51 and the restricting portion 52 and secured, thereby fixing the wire harness 11 to the fixing portion 50 (see Figure 7). In this way, the tip of the band 41 can be led out from the notch portion 522 to the left side WL, making it easy to pull the band 41 downward HD and wrap it around the wire harness 11. Therefore, the workability of fixing the wire harness 11 to the fixing portion 50 can be improved.

[0060] Furthermore, when the wire harness 11 is band-fixed to the fixing part 50 with the fixing band 40, the wire harness 11 is pressed against the curved arc surface 521, thus reducing the gap formed between the band 41 and the arc surface 521 (see Figure 7). Moreover, since the wound band 41 curves along the protruding surface 523, the band 41 is wound so that it is tightly fitted to the restricting part 52. Therefore, the fixing band 40 can more firmly fix the wire harness 11 to the fixing part 50.

[0061] Furthermore, the band 41, which is wrapped around the wire harness 11 and the restricting section 52, is housed in the notch 522 on the left side WL of the restricting section 52, and is therefore wrapped around and fixed to the wire harness 11 without protruding from the left side WL of the fixing section 50 (see Figure 7).

[0062] Next, the first block 30A, the second block 30B, and the third block 30C, each with a wire harness 11 fixed to the fixing part 50, are assembled to the housing box body 21. More specifically, after the second block 30B and the third block 30C are assembled to their respective locations on the housing box body 21, the first block 30A, with the wire harness 11 routed along the outer edge of the first block 30A in the longitudinal direction L, is assembled to the housing box body 21 (see Figure 8).

[0063] Then, the tip side LA of the wire harness 11, which is fixed by the fixing part 50, is curved toward the left side WL so that the wire harness 11 can be positioned in the upper insertion part 24. In addition, the rear end side LB of the wire harness 11, which is fixed by the fixing part 50, is curved toward the right side WR and routed toward the lower side HD of the third block 30C (see Figures 8 and 9).

[0064] Next, the outer casing material 12, through which the wire harness 11 is inserted, is positioned in the upper insertion portion 24 at the corner of the rear end LB and the right side WR, where the fixing band 40 is attached to the insertion fixing portion 242. At this time, the outer casing material 12 is positioned in the upper insertion portion 24 so that the locking rib 241 is locked onto the small diameter portion of the outer casing material 12, and the band 41 attached to the insertion fixing portion 242 is wrapped around the wire harness 11 to secure the wire harness 11 with the fixing band 40 (see Figures 9 and 10). As a result, both ends of the wire harness 11 routed in the routing space D are held by the insertion fixing portion 242.

[0065] Furthermore, the wire harness 11 is positioned in the upper insertion section 24 at the corner of the tip side LA and the left side WL, where the fixing band 40 is attached to the insertion fixing section 242. Then, the band 41 attached to the insertion fixing section 242 is wrapped around the wire harness 11, and the wire harness 11 is fixed to the upper insertion section 24 with the fixing band 40 (see Figures 9 and 10).

[0066] Then, with the wire harness 11 held in place by the fixing band 40 at the upper insertion portion 24 provided at the corner portion between the front end LA and the left side WL, and at the corner portion between the rear end LB and the right side WR, the cover 22 is attached to the housing box body 21 so as to close the opening of the housing box body 21.

[0067] In this manner, the wire harness 11 routed in the routing space D inside the housing box body 21 is fixed to the fixing part 50 between the holding portions held by the insertion fixing part 242 with the fixing band 40 (see Figure 9). More specifically, the fixing part 50 is provided in a direction that intersects the straight line connecting the insertion fixing parts 242 of the wire harness 11. The fixing part 50 fixes the boundary portion between the curved portion of the wire harness 11 and the portion along the longitudinal direction L, between the holding portions held by the insertion fixing part 242.

[0068] Therefore, when the electrical connection box 1 with harness is mounted on the vehicle, movement of the wire harness 11 routed in the routing space D due to vehicle vibrations can be suppressed, and interference between the wire harness 11 and other components can be suppressed. Consequently, the generation of abnormal noise due to interference between the wire harness 11 housed in the routing space D and other components can be suppressed.

[0069] Furthermore, the wire harness 11 routed along the outer edge of the left side WL of the first block 30A is routed so as to face the side surface of the left side WL of the housing box body 21, as shown in Figures 9 and 10. Here, since the first block 30A is assembled to the left side WL of the housing box body 21, the distance between the first block 30A and the housing box body 21 is narrowed when the first block 30A is assembled to the housing box body 21.

[0070] However, the first block 30A can be assembled to the housing box body 21 after the wire harness 11 has been fixed to the fixing part 50. Therefore, even if the distance between the first block 30A and the housing box body 21 is narrow, the first block 30A that fixes the wire harness 11 can be easily assembled to the housing box body 21. The restricting part 52 is provided on the outer edge of the arrangement part 51 so as to face the side surface of the housing box body 21 when the first block 30A is assembled to the housing box body 21. In other words, the restricting part 52 is positioned between the housing box body 21 and the wire harness 11 (see Figure 10), so interference between the housing box body 21 and the wire harness 11 can be prevented.

[0071] The electrical junction box 20 configured in this way includes a housing body 21 that constitutes the outer frame of a housing having a routing space D in which a portion of the wire harness 11 is routed, and a first block 30A that is assembled inside the housing body 21 and constitutes the housing together with the housing body 21. Two insertion fixing parts 242 for holding the wire harness 11 are provided at a predetermined distance apart. The first block 30A is provided with a fixing part 50 that fixes the wire harness 11 routed in the routing space D by a fixing band 40 that is wrapped around the holding portion of the wire harness 11 held by the insertion fixing parts 242.

[0072] As a result, the electrical connection box 20 can suppress the generation of abnormal noise caused by interference between the wire harness 11 housed in the wiring space D and other components such as the first block 30A and the third block 30C. More specifically, the wiring harness 11 routed in the wiring space D is provided with two insertion and fixing parts 242 that hold it at a predetermined distance apart. Furthermore, the first block 30A, which is assembled inside the housing box body 21, is provided with a fixing part 50 that secures the holding portions of the wire harness 11 held by the insertion and fixing parts 242 with a fixing band 40. As a result, the electrical connection box 20 can fix the holding portions of the wire harness 11 held by the two insertion and fixing parts 242 to the fixing part 50 of the first block 30A assembled in the housing box body 21. This suppresses movement of the wire harness 11 due to vehicle vibrations and prevents the wire harness 11 from interfering with other components. Consequently, it is possible to suppress the generation of abnormal noise due to interference between the wire harness 11 routed in the wiring space D and other components. In addition, since interference between the wire harness 11 and other components is suppressed, damage to other components can also be suppressed.

[0073] Furthermore, since the electrical connection box 20 allows the first block 30A to be assembled to the housing box body 21 after the wire harness 11 has been fixed to the fixing part 50, the wire harness 11 can be easily routed into the internal space S.

[0074] Furthermore, since the fixing portion 50 is provided at a position that intersects with the straight line connecting the insertion fixing portions 242, the fixing portion 50 can be positioned at a location other than the straight line connecting the insertion fixing portions 242. This improves the degree of freedom in the routing path of the wire harness 11.

[0075] Furthermore, by fixing the wire harness 11, which is housed in the electrical connection box 20 and held in place by the insertion and fixing parts 242, to the fixing part 50, the wire harness 11 can be routed in a curved manner. In other words, the fixing part 50 can restrict the routing path of the wire harness 11 to a desired path. On the other hand, compared to routing the wire harness 11 in a straight line connecting the insertion and fixing parts 242, the area between the holding parts of the wire harness 11 is more prone to movement. More specifically, the area near the curved part of the wire harness 11 tends to move easily due to vibration, etc. However, since the electrical connection box 20 can fix the area between the holding parts of the wire harness 11, which is prone to movement, with the fixing part 50, the degree of freedom of the routing path of the wire harness 11 can be improved while further suppressing the generation of abnormal noise due to interference between the wire harness 11 and other components.

[0076] Furthermore, the fixing portion 50 is provided on the outer edge portion of the first block 30A facing the housing box body 21 when the first block 30A is assembled to the housing box body 21. This ensures that even if the space between the outer edge portion of the first block 30A and the housing box body 21 is narrow, the holding portions of the wire harness 11 routed in the routing space D can be securely fixed. Therefore, the degree of freedom in routing the wire harness 11 is improved, and the internal space S can be utilized more effectively.

[0077] More specifically, since the configuration involves assembling the first block 30A to the housing box body 21, the wire harness 11 can be secured to the fixing portion 50 provided on the first block 30A with a fixing band 40 before assembling the first block 30A to the housing box body 21. In other words, even if the space between the outer edge of the first block 30A and the housing box body 21 is narrow, the wire harness 11 can be securely fixed to the routing space D, and the wire harness 11 can be routed along the housing box body 21.

[0078] This allows the wire harness 11 to be freely routed between its holding portions without being affected by the position of the first block 30A in the internal space S, thus making more effective use of the interior of the housing box body 21 (internal space S). Therefore, the electrical connection box 20 improves the degree of freedom in routing the wire harness 11 in the routing space D, and also improves the degree of freedom in designing the placement of other components inside the housing box body 21 (internal space S).

[0079] Furthermore, the fixing section 50 includes a placement section 51 for arranging the wire harness 11, and a connecting section 54 through which a fixing band 40 is inserted to wrap around the placement section 51 and the wire harness 11 and secure the wire harness 11 to the placement section 51. In the assembled state, the wire harness 11 is routed along the housing box body 21 in the placement section 51, and the connecting section 54 penetrates in a direction perpendicular to the longitudinal direction L of the wire harness 11 routed in the placement section 51 (insertion direction W).

[0080] As a result, by inserting the fixing band 40 through the connecting portion 54 which penetrates in a direction perpendicular to the longitudinal direction L, the wire harness 11 can be easily fixed along the outer edge of the first block 30A. Therefore, in the assembled state in which the first block 30A is assembled to the housing box body 21, the wire harness 11 can be fixed along the inner circumferential surface of the housing box body 21 that is opposite to the outer edge portion of the first block 30A. Consequently, the wire harness 11 can be routed in close proximity to the housing box body 21, and the internal space S and routing space D can be utilized more effectively.

[0081] Furthermore, the fixing portion 50 is provided with a restricting portion 52 that, when assembled, extends from the outer edge of the first block 30A along the housing box body 21. As a result, when assembled, the restricting portion 52 is provided between the wire harness 11 and the housing box body 21, which can more reliably suppress interference between the wire harness 11 and the housing box body 21. Therefore, the electrical connection box 20 can more reliably suppress the generation of abnormal noise due to interference between the wire harness 11 and the inner surface of the housing box body 21.

[0082] Furthermore, since the restricting portion 52 has an arc-shaped surface 521 when viewed from the longitudinal direction L, the fixing band 40 can be wrapped around the wire harness 11 and the restricting portion 52 when the wire harness 11 is placed in the placement portion 51. As a result, the electrical connection box 20 can firmly and stably fix the wire harness 11 to the restricting portion 52 via the fixing band 40.

[0083] Furthermore, the first block 30A is composed of a cassette block to which electronic components are connected. This allows the electrical junction box 20 to secure the wire harness 11 to the heavy cassette block, thus more stably fixing the wire harness 11 in the internal space S. Therefore, the electrical junction box 20 can more reliably suppress the movement of the wire harness 11 due to vibrations and other factors.

[0084] In the correspondence between the structure of this invention and the embodiments described above, the wire harness of this invention corresponds to the wire harness 11 of the embodiment, and similarly, hereinafter, The routing space corresponds to routing space D, The outer frame of the storage box corresponds to the storage box body 21. The assembly component corresponds to the first block 30A. The retaining part corresponds to the insertion and fixing part 242, The band is compatible with fixed band 40, The fixing part corresponds to the fixing part 50, The housing box corresponds to the electrical connection box 20. The arrangement section corresponds to the arrangement section 51, The insertion portion corresponds to the communication portion 54, The routing direction corresponds to the longitudinal direction L. The regulatory section corresponds to regulatory section 52, The arcuate surface corresponds to the arcuate surface 521, but this invention is not limited to the configuration of the above-described embodiment, and many other embodiments can be obtained.

[0085] For example, in this embodiment, the housing box body 21 is composed of a bottom surface and side surfaces, but it is sufficient to form a routing space D in block 30 where a part of the wire harness 11 is routed, and to assemble the first block 30A inside, and the configuration is not limited to this. For example, the housing box body 21 may have a structure in which the bottom surface portion is assembled to the side surfaces. That is, the electrical connection box 20 may be composed of a center case, an upper cover, and a lower cover.

[0086] Furthermore, the housing box body 21 constitutes an electrical connection box 20, which is composed of various electrical circuit units such as relays and fuses. However, the housing box of the present invention only needs to form a routing space D through which a portion of the wire harness 11 is routed, and to be able to assemble the first block 30A inside, and may be, for example, a protector that inserts and protects the wire harness 11. Similarly, the first block 30A is not limited to a cassette block, and is equipped with a fixing part 50 for securing the wire harness 11, and may be a component to be assembled to the housing box body 21 or a protector.

[0087] Furthermore, in this embodiment, one of the two insertion fixing portions 242 is provided on the inside of the storage box body 21 and the other is provided on the outside of the storage box body 21, but the configuration is not limited to this. For example, both of the two insertion fixing portions 242 may be provided on either the inside or outside of the storage box body 21.

[0088] Furthermore, although the insertion and fixing portion 242 is provided in the harness insertion portion 23 (upper insertion portion 24) for inserting the wire harness 11 into the routing space D, it is not necessary for it to be provided in the harness insertion portion 23. For example, instead of the insertion and fixing portion 242, a member for holding the wire harness 11 may be provided in another cassette block such as the third block 30C or in part of the storage box body 21.

[0089] Furthermore, if the insertion fixing portion 242 is provided on another cassette block such as the third block 30C or on a part of the housing box body 21, the insertion fixing portion 242 may be a connector connection portion that connects, for example, a connector provided at the end of a branch wire branched from the wire harness 11. Also, in this embodiment, the wire harness 11 is inserted through the electrical connection box 20 via two harness insertion portions 23, but the end of the wire harness 11 may be fixed inside the electrical connection box 20.

[0090] In this embodiment, there are two insertion and fixing portions 242, but there may be more than one. The fixing portion 50 secures the wire harness 11 between at least two of the multiple insertion and fixing portions 242. For this reason, for example, the fixing portion 50 may be provided in the first block 30A and the third block 30C. [Explanation of Symbols]

[0091] 11…Wire harness 20… Electrical junction box 21...Main body of the storage box 22...cover 40…Fixed band 50…Fixed part 51…Arrangement section 52…Regulatory Department 54…Communication part 60…Fixed band 30A…First Block 242... Insertion and fixing part 521... Circular arc surface D... Cable routing space L...longest direction

Claims

1. The outer frame of the housing has a routing space through which a portion of the wire harness is routed, The assembly member is assembled inside the outer frame of the housing box and together with the outer frame of the housing box, it constitutes the housing. Multiple holding parts for holding the wire harness are provided at predetermined intervals. The assembly member is provided with a fixing portion that secures the wire harness routed in the routing space by a band that wraps around at least two of the holding portions of the wire harness held by the holding portion. Storage box.

2. The fixing portion is provided at a position that intersects with the straight line connecting the holding portions. The storage box according to claim 1.

3. The fixing portion is provided on the outer edge portion of the assembly member that faces the outer frame of the storage box when the assembly member is assembled to the outer frame of the storage box. The storage box according to claim 1 or claim 2.

4. The aforementioned fixing part is The arrangement section for arranging the wire harness, The device includes an insertion section through which the band is inserted, which is wrapped around the arrangement section and the wire harness to secure the wire harness to the arrangement section. In the aforementioned arrangement section, the wire harness is routed along the outer frame of the housing box in the assembled state. The insertion portion penetrates in a direction perpendicular to the routing direction of the wire harness routed in the arrangement portion. The storage box according to claim 3.

5. The aforementioned fixing part includes, In the assembled state, a restricting portion is provided that extends from the outer edge of the assembly member along the outer frame of the housing box. The storage box according to claim 4.

6. The restricting portion has an arc-shaped surface when viewed from the direction of cable routing. The storage box according to claim 5.

7. The assembly member is composed of a cassette block to which electronic components are connected. The storage box according to claim 1.

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