JP2012125117A - Electrical connection box - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an electrical connection box with a new structure which secures waterproofness of a case and stably supports and fixes a wiring harness disposed near the case.SOLUTION: In a case 14, two fixing parts 28a, 28b are respectively projected on an outer peripheral surfaces 26a and an outer peripheral surface 26b, which face each other sandwiching a surface 22, and a harness housing groove 38, which extends from the one fixing part 28a to the other fixing part 28b in a direction that the two fixing parts 28a, 28b face each other, is provided on the surface 22. A wiring harness 60 is disposed on the surface 22 by fitting the wiring harness 60 into the harness housing groove 38 and fixing the wiring harness 60 to the fixing parts 28a, 28b.

Description

  The present invention relates to an electric junction box mounted on an automobile or the like, and more particularly to an electric junction box in which a wire harness is fixed to a case.

  Conventionally, an electrical junction box has been adopted in the electrical system of an automobile, and a wire harness disposed in the vehicle is connected to an internal circuit housed in the case so that the battery can be efficiently connected to in-vehicle electrical components. Power distribution is performed.

  By the way, the wire harness connected to the electrical junction box is fixed to the case of the electrical junction box in order to prevent interference with other members or separation from the electrical junction box due to external force exerted on the wire harness. Things have been done. For example, as described in JP-A-9-18172 (Patent Document 1), the clip for fixing the electric wire attached to the wire harness is engaged with the locking hole provided in the case of the electrical junction box, A structure in which a wire harness is fixed to an electrical junction box is widely used.

  However, in such a conventional structure, it is necessary to provide an engagement hole with respect to the case of the electrical junction box, and there is a problem from the viewpoint of waterproofness of the electrical junction box. In addition, in the fixing structure that engages the clip provided on the wire harness with the engagement hole of the electrical junction box, it becomes point fixing, and the wire harness configured by bundling a number of wires has sufficient strength. Could not be positioned and fixed to the case.

  It is also possible to fix the wire harness to the case at multiple fixing points using a large number of clips. However, as the number of clips increases, the work process becomes complicated and the number of engagement holes provided in the case also increases. As a result, it becomes more difficult to ensure waterproofness. In addition, when it is necessary to arrange the wire harness between a plurality of fixed points with a certain amount of slack, the wire harness can be moved freely within the slack range, so interference with other members Could not be sufficiently prevented.

JP-A-9-18172

  The present invention has been made in the background of the above-mentioned circumstances, and its solution is to stably support and fix the wire harness disposed in the vicinity of the case while ensuring the waterproofness of the case. An object is to provide an electrical junction box having a novel structure.

  According to a first aspect of the present invention, in the electrical junction box in which the fixing portion for fixing the wire harness is provided in the case, the outer peripheral surface of the case includes the two fixing portions at opposite positions sandwiching the surface of the case. And a harness housing groove extending from one of the fixed portions toward the other fixed portion in the opposing direction of the two fixed portions on the surface of the case. It is characterized by being arranged on the surface of the case by being fitted into the harness receiving groove and being fixed to each of the fixing portions.

  According to the present invention, the wire harness is fixed by the two fixing portions provided opposite to the outer peripheral surface of the case, and an intermediate portion between the two fixing portions in the wire harness is provided on the case surface. Fitted in the harness receiving groove. Thereby, a wire harness can be fixed to a case in three places, and it can fix stably in the state which controlled movement. In particular, since the intermediate portion of the wire harness is merely fitted into the harness housing groove, the wire harness can be fixed to the electrical junction box with a simple operation.

  Further, the two fixing portions and the harness receiving groove can be formed without providing a hole or the like in the main body portion of the case. Thereby, a wire harness can be stably fixed to an electrical junction box, ensuring the waterproofness of an electrical junction box highly.

  In particular, the intermediate portion of the wire harness extending between the two fixed portions is difficult to be disposed along the case without a gap due to the strong rigidity of the wire harness. Accordingly, slack is likely to occur in the middle part of the wire harness, and displacement is easily caused by the slack. However, according to the present invention, by forming a harness housing groove on the surface of the case and fitting the intermediate portion of the wire harness into the groove, the slack can be skillfully absorbed and positioned and held.

  Furthermore, the protrusion dimension of the wire harness from the surface of the case can be suppressed by allowing the intermediate portion of the wire harness in which interference with other members due to slack or deformation is a problem to enter the harness housing groove. Thereby, interference with other members can be advantageously avoided, and the electrical junction box can be reduced in size in a state where the wire harness is routed. Note that the entire wire harness may be fitted into the harness housing groove, or may be partially fitted into the harness housing groove.

  According to a second aspect of the present invention, in the one described in the first aspect, one end of the harness receiving groove is open to the outer peripheral surface on the one fixed portion side, and the harness receiving While the other end of the groove is open to the surface of the case, the one fixing portion protrudes outward from the bottom of the harness receiving groove, and the other fixing portion is It protrudes outward from the surface, and the bottom surface of the harness housing groove is inclined from the surface of the case toward the one fixed portion.

  In this aspect, the height positions of the two fixing portions in the case are different from each other, and it is difficult to bend the highly rigid wire harness along the outer peripheral edge portion of the case. As a result, the range of movement of the intermediate portion due to the slack of the intermediate portion of the wire harness extending across the two fixed portions may be increased, and interference with other members may easily occur. However, according to this aspect, since the bottom surface of the harness receiving groove is provided to be inclined from the other fixing portion located on the case surface toward the one fixing portion located below the case surface, the wire harness is provided. The intermediate portion of the wire harness can be arranged along the case without further slack, and the holding of the intermediate portion of the wire harness can be realized more stably.

  According to a third aspect of the present invention, in the one described in the first or second aspect, at least one of the one fixing part side and the other fixing part side on the surface of the case includes the harness housing. A support wall extending along the side of the groove is projected.

  According to this aspect, the wire harness can be fixed more stably at the fixing portion by supporting the pull-out force applied to the fixing portion of the wire harness with the support wall in a reinforcing manner. In particular, by providing the support wall in the vicinity of the fixed portion where the amount of looseness of the wire harness is small, a sufficient reinforcing effect can be obtained even if the height of the support wall is small. In addition, in this aspect, Preferably, a support wall is provided in both one fixed part side and the other fixed part side.

  In particular, when a support wall is provided in the harness housing groove formation site, even if the diameter dimension of the wire harness is large enough to be unable to be housed and held in the harness housing groove, without increasing the depth of the harness housing groove, The wire harness can be positioned and held in cooperation with the support wall. As a result, it is difficult to secure a space inside the electrical junction box, and the wire harness can be stably held even when the harness housing groove cannot be formed deeply.

  Note that the support walls may be formed on both sides of the wire harness, or may be provided only in a portion where the wire harness is easily removed from the harness receiving groove in consideration of how external force is applied to the wire harness. good.

  According to a fourth aspect of the present invention, in the above-described third aspect, the support wall protrudes from the case surface toward the harness housing groove on at least one side portion of the harness housing groove. It has a triangular cross-sectional shape having an inclined guide surface whose height gradually increases and a support wall surface that rises vertically from the case surface on the harness housing groove side.

  According to this aspect, the wire harness can be guided to the harness housing groove from the side of the harness housing groove by the inclined guide surface. Further, the support wall surface can prevent the wire harness from being detached from the harness housing groove. Thereby, the auxiliary | assistant function of the fitting operation | work by an inclination guide surface and the separation | suction prevention function of the wire harness by a support wall surface can be made compatible effectively.

  According to a fifth aspect of the present invention, in the one according to any one of the second to fourth aspects, the one fixed portion is inclined to extend in the same direction as the bottom surface of the harness housing groove. A support surface is provided.

  According to this aspect, the slack of the wire harness between the bottom surface of the harness housing groove and the fixing portion can be more effectively removed by inclining the support surface of the one fixing portion in the same manner as the bottom surface of the harness housing groove. The wire harness can be fixed more firmly. Moreover, predetermined directionality can also be provided to the extended part from the harness accommodating groove in the wire harness by the inclined support surface.

  According to the present invention, two fixing portions are provided on the outer peripheral surface of the case so as to face each other, and a harness housing groove is provided between the two fixing portions, and the wire harness is fixed by the two fixing portions. It was made to fit in the harness receiving groove. Thereby, a wire harness can be stably fixed in three places. Furthermore, since the two fixing portions and the harness receiving groove can be formed without providing a hole or the like in the case, the wire harness can be stably held while ensuring the waterproofness of the electrical junction box.

The perspective view of the electrical-connection box as one Embodiment of this invention. The rear view of the electrical-connection box shown in FIG. Explanatory drawing equivalent to the III-III cross section in FIG. The expanded explanatory view equivalent to the IV-IV cross section in FIG. The perspective view which shows the attachment state of the wire harness to the electrical-connection box shown in FIG. Explanatory drawing equivalent to the cross section of FIG. 3 for demonstrating the attachment state of a wire harness. The perspective view of the principal part of a wire harness.

  Embodiments of the present invention will be described below with reference to the drawings.

  First, FIG. 1 to FIG. 3 show an electrical junction box 10 as an embodiment of the present invention. As can be seen from FIG. 3, the electrical junction box 10 has a structure in which an upper case 12 and a lower case 14 made of synthetic resin accommodate each other and accommodate a printed circuit board 16 constituting an internal circuit.

  The upper case 12 has a substantially longitudinal rectangular box shape opening toward the lower case 14. Although not shown, the upper case 12 is formed with a plurality of fuse mounting portions, connector mounting portions, and the like, and the connection terminals protruding from the printed circuit board 16 are located in the fuse mounting portions and connector mounting portions. It is protruding.

  On the other hand, the lower case 14 has a substantially longitudinal rectangular box shape that opens toward the upper case 12, and an outer peripheral wall 20 is formed on the upper case 12 at the outer peripheral portion of the bottom plate 18 having a substantially longitudinal rectangular plate shape. It has a shape projecting toward it. A plurality of connector mounting portions 24 are formed on the surface 22 of the bottom plate 18. Although not shown in the drawings, connection terminals that protrude from the printed circuit board 16 protrude into the connector mounting portions 24.

  Further, in the lower case 14, the outer peripheral surfaces 26a and 26b that are located on opposite sides of the lower case 14 in the longitudinal direction (vertical direction in FIG. 2) and face each other across the surface 22 are provided as first fixing portions. One fixed portion 28a and the second fixed portion 28b as the other fixed portion are integrally formed. The first fixing portion 28 a and the second fixing portion 28 b are formed on the same straight line in the longitudinal direction of the lower case 14.

  In the first fixing portion 28a, the fixing plate portion 30a protruding outward in the longitudinal direction of the lower case 14 from the outer peripheral surface 26a has reinforcing ribs 32, 32 (at the both end edges in the width direction (left-right direction in FIG. 2)). The shape is connected to the outer peripheral surface 26a in FIG. The fixed plate portion 30a is inclined so as to approach the upper case 12 side as it protrudes from the outer peripheral surface 26a, and the surface on the surface 22 side of the fixed plate portion 30a is an inclined support surface 34. The inclined support surface 34 is a substantially rectangular flat surface. And the oval-shaped engagement hole 36 is penetrated by the fixed board part 30a.

  On the other hand, the second fixing portion 28b has substantially the same structure as the first fixing portion 28a, and the fixing plate portion 30b protruding outward in the longitudinal direction of the lower case 14 from the outer peripheral surface 26b is formed in the width direction ( In FIG. 2, the shape is connected to the outer peripheral surface 26b by the reinforcing ribs 32, 32 at both end edges in the left-right direction). An oval engagement hole 36 is provided through the fixed plate portion 30b. A support surface 37 that is a flat surface is formed on the fixed plate portion 30b. The support surface 37 is formed on the same plane as the surface 22 of the lower case 14, and protrudes perpendicularly to the outer peripheral surface 26 b continuously from the surface 22. Thereby, as shown in FIG. 3, the first fixed portion 28 a and the second fixed portion 28 b are protruded from the surface 22 of the outer peripheral wall 20 in the height direction of the electrical junction box 10 (in FIG. 3). The first fixing portion 28a is located farther from the surface 22 than the second fixing portion 28b.

  Further, a harness housing groove 38 is formed on the surface 22 of the lower case 14. The harness housing groove 38 has a groove shape that opens on the surface 22 and extends linearly in the longitudinal direction of the lower case 14 (vertical direction in FIG. 2). The harness housing groove 38 extends on the surface 22 from the first fixing portion 28a toward the second fixing portion 28b in the opposing direction of the first fixing portion 28a and the second fixing portion 28b. Thereby, the first fixing portion 28 a, the second fixing portion 28 b, and the harness housing groove 38 are formed on substantially the same straight line in the longitudinal direction of the lower case 14. One end of the harness housing groove 38 is a side opening 40 opened on the outer peripheral surface 26 a, and the other end is a substantially central portion in the longitudinal direction of the lower case 14 on the surface 22. The surface opening 42 is open to the surface. The groove width dimension (the horizontal dimension in FIG. 2) of the harness housing groove 38 is a substantially constant width dimension substantially equal to the inclined support surface 34 of the first fixed portion 28a.

  As shown in FIG. 3, the bottom surface 44 of the harness receiving groove 38 is connected to the surface 22 at the surface opening 42, and is connected to the inclined support surface 34 of the first fixing portion 28 a at the side opening 40. Has been. As a result, the bottom surface 44 is inclined with respect to the surface 22 from the surface 22 toward the first fixing portion 28a, and from the surface opening 42 to the groove length direction of the harness housing groove 38 (in FIG. And a flat surface 48 extending from the inclined surface 46 to the first fixing portion 28a. The inclined surface 46 is inclined from the surface 22 toward the inclined support surface 34 of the first fixed portion 28a as it goes from the surface opening 42 to the first fixed portion 28a side. Therefore, the inclined support surface 34 in the first fixed portion 28 a is inclined in the same direction as the inclined surface 46. In addition, the flat surface 48 extends toward the first fixing portion 28 a substantially in parallel with the surface 22 and is connected to the inclined support surface 34. The bottom surface 44 is formed without a step from the surface opening 42 to the side opening 40, and the inclined surface 46 and the flat surface 48 are smoothly connected without having a clear bent line.

  Further, the bottom surface 44 of the harness receiving groove 38 is connected to the surface 22 at the surface opening 42 without a step, and is connected to the inclined support surface 34 of the first fixing portion 28a at the side opening 40 without a step. ing. Thus, the end edge portion 50 on the side opening 40 side on the bottom surface 44 of the harness housing groove 38 is inclined toward the inclined support surface 34 and is smoothly connected to the inclined support surface 34. 34 extends from the bottom surface 44 to the outside of the lower case 14 continuously without a step.

  Further, on the surface 22 of the lower case 14, a first support wall 52a and a second support wall 52b are integrally formed on the outer peripheral portion located on the side of the harness housing groove 38, and the first support wall 52a. Is formed on the first fixed portion 28a side, and a second support wall 52b is formed on the second fixed portion 28b side. Since the first support wall 52a and the second support wall 52b have substantially the same shape, the second support wall 52b is given the same reference numeral as the first support wall 52a in the drawing. The description will be omitted as appropriate.

  As shown in FIG. 4, the first support wall 52 a has a substantially constant right-angled triangular cross section having a support wall surface 54 and an inclined guide surface 56, and is straight along the extending direction of the harness housing groove 38. It is extended to. The support wall surface 54 has a protruding wall shape that rises perpendicular to the surface 22. In particular, the support wall surface 54 in the first support wall 52 a is continuous from the side surface 58 that is located outside the lower case 14 in the harness housing groove 38. And protrudes on the surface 22. In addition, the inclined guide surface 56 has one end edge connected to the support wall surface 54 and the other end connected to the surface 22, and goes from the outer peripheral portion of the surface 22 to the harness housing groove 38 side. Accordingly, the projecting dimension from the surface 22 is an inclined surface that gradually increases. Thus, the first support wall 52a extends with a substantially right-angled triangular cross-section with the inclined guide surface 56 as the hypotenuse.

  As shown in FIG. 2, the first support wall 52 a extends adjacent to the harness housing groove 38 along the side portion of the harness housing groove 38. The first support wall 52a is formed with a length dimension (vertical direction dimension in FIG. 2) substantially equal to the harness receiving groove 38, and has one end in the longitudinal direction of the lower case 14 (vertical direction in FIG. 2). And the other end is positioned substantially equal to the surface opening 42 of the harness receiving groove 38. On the other hand, the second support wall 52b has a length dimension shorter than that of the first support wall 52a and extends from the end of the second fixing portion 28b in the longitudinal direction of the lower case 14 to the side of the harness housing groove 38. It extends along the extending direction (vertical direction in FIG. 2). The first support wall 52a and the second support wall 52b are arranged on the substantially same straight line in the extending direction of the side portion of the harness housing groove 38 in the outer peripheral portion of the lower case 14 serving as the side portion of the harness housing groove 38. It is formed at a predetermined interval.

  As shown in FIGS. 5 and 6, the electrical junction box 10 having such a structure can be attached with a wire harness 60. The wire harness 60 is fixed to the lower case 14 using harness clamps 62 and 62 at two locations, the first fixing portion 28a and the second fixing portion 28b.

  Since a conventionally well-known thing can be employ | adopted for the harness clamp 62 suitably, an outline | summary is demonstrated. As shown in FIG. 7, the harness clamp 62 in the present embodiment has a band-like band portion 66 connected to one side of the base portion 64 and a locking portion 68 protruding from the opposite side of the band portion 66. It is made into a shape. The band portion 66 can be bent and deformed, and one end portion is connected to the base portion 64. The other end wraps around the wire harness 60 and is inserted into the insertion hole 70 of the base portion 64 and is engaged with a locking claw (not shown) formed in the insertion hole 70, thereby the harness clamp 62. Can be attached to the wire harness 60. On the other hand, the locking portion 68 has a substantially plate shape protruding from the base portion 64. In addition, a base portion protruding from the base portion 64 of the locking portion 68 is provided with a thin-walled substantially disk shape and a cap-shaped biasing portion 72 that is concave toward the locking portion 68. .

  Two of such harness clamps 62 are attached to the wire harness 60, and the locking portion 68 of one harness clamp 62 is inserted into the engagement hole 36 of the first fixing portion 28a and the fixing plate portion 30a. It is locked to. The biasing portion 72 of the harness clamp 62 is pressed against the inclined support surface 34 and compressed and deformed, whereby the base 64 is biased in a direction away from the inclined support surface 34 by the restoring force of the biasing portion 72. The locking portion 68 is pressed against the fixed plate portion 30a. Thereby, the harness clamp 62 is attached to the first fixing portion 28 a, and the wire harness 60 is fixed to the first fixing portion 28 a via the harness clamp 62. Similarly, the other harness clamp 62 is fixed to the second fixing portion 28b, whereby the wire harness 60 is fixed to the second fixing portion 28b.

  And in the wire harness 60, the intermediate part 74 between the fixing location to the 1st fixing | fixed part 28a and the fixing location to the 2nd fixing | fixed part 28b is inserted in the harness accommodation groove | channel 38. FIG. In addition, the diameter dimension of the wire harness 60 in this embodiment is made larger than the groove width dimension of the harness accommodating groove 38, and the wire harness 60 is partially fitted in the harness accommodating groove 38, and the harness accommodating The exposed portion from the groove 38 is locked to the support wall surface 54 of the first support wall 52a. Thereby, the wire harness 60 is disposed on the surface 22 of the lower case 14 so as to extend in the longitudinal direction of the lower case 14. As shown in FIG. 5, the plurality of connectors 76 branched from the wire harness 60 are wound around the upper case 12 and attached to the connector attachment portion of the upper case 12, or the connector attachment portion 24 of the lower case 14. As a result, the wire harness 60 is electrically connected to the printed circuit board 16 in the electrical connection box 10.

  According to the electrical junction box 10 having such a structure, the wire harness 60 is fixed at two locations of the first fixing portion 28a and the second fixing portion 28b. , 28 b can be fitted into the harness receiving groove 36 and fixed on the surface 22. Thereby, the movement of the intermediate portion 74 of the wire harness 60 can be suppressed, and interference with other members can be reduced. In particular, since the wire harness 60 can be positioned by the points with the harness clamps 62 and 62 in the two fixing portions 28a and 28b, and the intermediate portion 74 can be positioned in the harness receiving groove 38, so that the wire harness 60 can be positioned with a line. Can be positioned. Further, the intermediate portion 74 of the wire harness 60 can be fixed to the electrical junction box 10 by a simple operation of fitting into the harness housing groove 38. Furthermore, by inserting the intermediate portion 74 into the harness receiving groove 38, the protruding dimension from the surface 22 of the wire harness 60 can be reduced, and interference with other members can be further reduced, and the wire harness 60 is fixed. The electrical junction box 10 can be downsized in the state where it is formed.

  The first fixing portion 28a and the second fixing portion 28b are formed so as to protrude from the outer peripheral surfaces 26a and 26b of the lower case 14, and the harness housing groove 38 has a bottomed groove shape. Thus, both the fixing portions 28a and 28b and the harness housing groove 38 can be formed without piercing the surface 22 or the outer peripheral wall 20 of the lower case 14. As a result, the wire harness 60 can be more stably fixed while ensuring the waterproof property of the electrical junction box 10.

  Furthermore, in this embodiment, since the positions of the first fixing portion 28a and the second fixing portion 28b are different in the thickness direction of the electrical junction box 10, the wire harness 60 is inclined with respect to the surface 22. As a result, the intermediate portion 74 may be easily loosened. However, according to the present embodiment, since the bottom surface 44 of the harness receiving groove 38 is inclined so as to extend along the extending direction of the intermediate portion of the wire harness 60, the intermediate portion can be stably held without sagging. I can do it. Further, the slanting support surface 34 of the first fixing portion 28a is inclined in the same manner as the bottom surface 44 of the harness receiving groove 38, thereby removing the slack of the wire harness 60 between the bottom surface 44 and the first fixing portion 28a. In addition, the inclined support surface 34 can give a predetermined direction to the portion of the wire harness 60 that extends from the harness housing groove 38.

  Further, a first support wall 52a and a second support wall 52b are formed on the surface 22 of the lower case 14, and an intermediate portion 74 of the wire harness 60 is formed on the support wall surfaces 54 and 54 of the support walls 52a and 52b. It is designed to be locked. As a result, in the wire harness 60, the force in the pulling direction applied to the fixed portions to the first fixed portion 28a and the second fixed portion 28b is supported by the support wall surfaces 54 and 54 in a reinforcing manner, so that the first fixing is performed. The wire harness 60 can be more stably fixed at the portion 28a and the second fixing portion 28b. In particular, the first support wall 52a and the second support wall 52b are provided in the vicinity of the fixed portions to the first fixed portion 28a and the second fixed portion 28b where the bending amount of the wire harness 60 is small. Even if the height of the wall surfaces 54, 54 is relatively small, a sufficient reinforcing effect can be obtained. As a result, it is possible to position and hold the wire harness 60 in cooperation with the support walls 52a and 52b without increasing the depth of the harness receiving groove 38, and in particular, it is difficult to secure a space in the electrical connection box 10, Even when the depth of the harness housing groove 38 cannot be secured, the wire harness 60 can be stably held.

  Furthermore, the intermediate portion 74 of the wire harness 60 can be oriented in the extending direction of the harness housing groove 38 by the first support wall 52a and the second support wall 52b, and the housing state in the harness housing groove 38 can be achieved. Can be held more stably. In particular, since the first support wall 52a and the second support wall 52b are formed on both the first fixing portion 28a side and the second fixing portion 28b side, respectively, the wire harness 60 is connected to the intermediate portion 74. It is possible to orient more accurately over a predetermined length dimension at each of the both end portions. Further, the support wall surface 54 of the first support wall 52 a is formed continuously with the side surface 58 of the harness housing groove 38. Accordingly, the substantial size of the side surface 58 is increased by the support wall surface 54, and even when the large-diameter wire harness 60 exposed from the harness storage groove 38 is retained by the support wall surface 54, the harness is accommodated. It can be stably held in a partially fitted state in the groove 38.

  Furthermore, inclined guide surfaces 56, 56 are formed on the first support wall 52a and the second support wall 52b, respectively, such that the protruding dimensions from the surface 22 gradually increase toward the harness housing groove 38 side. Thereby, the intermediate portion 74 of the wire harness 60 can be guided from the outside of the electrical connection box 10 to the harness receiving groove 38 side by the inclined guide surfaces 56, 56, and the intermediate portion 74 is fitted into the harness receiving groove 38. Can be performed more easily and smoothly.

  As mentioned above, although embodiment of this invention was explained in full detail, this invention is not limited by the specific description. For example, the specific shape of the harness receiving groove is not limited to the shape as in the above embodiment, and the harness receiving groove may extend over the entire length between the fixed portions, and is not necessarily relative to the surface of the lower case. There is no need to be inclined. Further, a plurality of harness receiving grooves can be formed. For example, a harness receiving groove may be formed also on the other fixed portion side.

  Furthermore, the two fixing portions for fixing the wire harness may be formed at the same position in the thickness direction of the electric junction box (the left-right direction in FIG. 3). In such a case, both the two fixing portions are arranged at different positions with respect to the surface 22 in the thickness direction of the electrical junction box 10 as in the first fixing portion 28a in the above embodiment. It may be formed in the middle part of 26a, 26b, or may be formed on the same plane as the surface 22, like the second fixing part 28b. Furthermore, in consideration of, for example, the arrangement of the wire harness 60, the second fixing portion 28b can also be formed to be inclined like the first fixing portion 28a. In such a case, the inclination directions of the first fixing portion 28a and the second fixing portion 28b may be equal to each other or different from each other. In addition, the manner of fixing the wire harness to the fixing portion in the above embodiment is merely an example, and is not limited to the one using the harness clamp as in the above embodiment. For example, a belt-like band made of resin or metal, an adhesive tape, or the like You may fix directly to a fixing | fixed part using.

  Furthermore, although a support wall is not necessarily required, in consideration of how external force is applied to the wire harness, for example, it may be provided only on one of the fixed part side and the other fixed part side, You may provide only in the place where it is easy to remove | deviate from a harness accommodating groove. Moreover, you may form a support wall in the both sides of the side of a harness accommodating groove.

10: Electrical connection box, 12: Upper case, 14: Lower case, 16: Printed circuit board, 22: Surface, 26a, b: Outer peripheral surface, 28a: First fixing part (one fixing part), 28b: Second Fixed portion (the other fixed portion), 30a, b: fixed plate portion, 34: inclined support surface, 38: harness receiving groove, 40: side opening, 42: surface opening, 44: bottom surface, 46: inclined surface 48: flat surface 52a: first support wall 52b: second support wall 54: support wall surface 56: inclined guide surface 60: wire harness

Claims (5)

In the electrical junction box in which the fixing part for fixing the wire harness is provided in the case,
On the outer peripheral surface of the case, the two fixing portions project from the opposing positions across the surface of the case, and one of the fixing portions in the opposing direction of the two fixing portions on the surface of the case A harness receiving groove extending from the other side toward the other fixed portion is provided, and the wire harness is fitted into the harness receiving groove and fixed to each of the fixed portions to be disposed on the surface of the case. An electrical junction box characterized by that.   One end of the harness receiving groove opens to the outer peripheral surface on the one fixed portion side, and the other end of the harness receiving groove opens to the surface of the case, And the other fixing portion protrudes outward from the surface of the case, and the bottom surface of the harness receiving groove is the case. The electrical junction box according to claim 1, wherein the electrical connection box is inclined toward the one fixed portion from the surface. The support wall extended along the side part of the said harness accommodating groove is protrudingly provided in at least one of said one fixing | fixed part side and said other fixing | fixed part side in the surface of the said case. Electrical junction box.   The support wall has an inclined guide surface in which a protruding height from the case surface gradually increases toward the harness housing groove at at least one side portion of the harness housing groove, and the case surface on the harness housing groove side. The electrical connection box according to claim 3, wherein the electrical connection box is protruded in a triangular cross-sectional shape having a support wall surface that rises vertically from the wall.   The electrical junction box according to any one of claims 2 to 4, wherein the one fixing portion includes an inclined support surface that extends in an inclined manner in the same direction as the bottom surface of the harness housing groove.

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