JP3824294B2 - Electrical junction box mounting structure - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an electric junction box mounting structure, and more particularly to a structure for attaching an electric junction box to a vehicle body and attaching external components such as a relay and a connector to a case of the electric junction box.
[0002]
[Prior art]
Conventionally, as an attachment structure for an electrical junction box, for example, there is a structure as shown in FIG. This attachment structure of the electrical junction box is for attaching external parts such as connectors (not shown) to different positions of the electrical junction box 50 via the locking bodies 60 in correspondence with different vehicle types. The electrical junction box 50 includes an upper case 51 and a lower case 52, and a bus bar and the like are housed in a case 50a formed by combining the upper and lower cases 51 and 52. The upper case 51 is provided with a housing 51a for inserting the relay 53, a connector portion 51b, and the like. A pair of guide rails 54 are provided on the outer surface of the side wall of the lower case 52. Further, welding bosses 55 are provided on the outer surface of the guide rail 54 at a plurality of attachment positions with a predetermined interval. Moreover, the latching protrusion 56 is each provided in the location pinched | interposed between the guide rails 54 of the side wall outer surface of the lower case 52 in those attachment positions.
[0003]
The locking body 60 mounted between the pair of guide rails 54 includes a rectangular flat plate-like substrate portion 61. A pair of opposing sides of the substrate part 61 is formed as a thin part 62 so as to be engaged with the guide rail 54. A mounting piece 63 that can lock an external component such as a connector protrudes from the surface of the substrate portion 61. A locking recess (not shown) in which the locking projection 56 of the lower case 52 can be engaged is provided on the back surface of the substrate unit 61.
[0004]
The locking body 60 is slid along the guide rail 54 and is arranged at a different mounting position of the guide rail 54 depending on the vehicle type. At this time, the locking projections 56 of the lower case 52 are engaged with the locking recesses on the back surface of the substrate portion 61 of the locking body 60, and the locking body 60 is temporarily locked at the mounting position. However, in this temporarily locked state, the engagement between the locking recess of the locking body 60 and the locking projection 56 of the lower case 52 is permitted in order to allow the locking body 60 to move to another mounting position. The match is shallow. Then, as shown in FIG. 9, the locking body 60 is welded to the lower case 52 by melting the welding boss 55 provided at the mounting position, and the locking body 60 is finally locked to the lower case 52. .
[0005]
[Problems to be solved by the invention]
In the conventional electrical junction box mounting structure described above, since welding was required, the assembly work of the mounting structure was complicated.
In addition, when the locking body 60 is welded and fixed at the wrong mounting position of the electrical junction box 50 and then the locking body 60 is to be removed, both the lower case 52 and the locking body 60 are damaged. As a result, it was virtually impossible to correct misassembly.
The present invention has been made in view of the above circumstances, and an object of the present invention is to provide an electrical junction box mounting structure that is easy to assemble and that can easily correct misassembly.
[0006]
[Means for Solving the Problems]
The above object of the present invention is achieved by the following configurations.
Configuration 1: Mounting structure of an electrical connection box in which a mounting adjustment body is assembled to a case of the electrical connection box, and the electrical connection box is attached to a vehicle body via the mounting adjustment body, or an external part is attached to the electrical connection box In
The case has a flat plate and a side wall erected from the flat plate in the direction of the other side of the flat plate as a short direction , and the first case and the second case are combined.
A linear slide groove extending in the longitudinal direction is defined in such a manner that a short- side tip in a predetermined region in the longitudinal direction of the side wall of the first case and a short-direction tip in a predetermined region in the long direction of the side wall of the second case are separated. A part of each of the flat plate of the first case and the flat plate of the second case is an elastic piece extending beyond the side wall standing portion, and the elastic piece is used to lock the attachment adjusting body. Is equipped with a passive locking part,
The mounting adjustment body comprises a main body that can be sandwiched and mounted between the elastic piece of the first case and the elastic piece of the second case, and is fitted into the slide groove to slide the mounting adjustment body into the slide. A slide portion that is movably supported along the groove is provided in a portion facing the slide groove of the main body, and the active lock portion that is engaged with the passive lock portion according to the movement of the mounting adjustment body is provided in the main body. On the surface facing the elastic piece of
At least one of the passive locking portions and at least one of the active locking portions are engaged so that the mounting adjustment body can be locked at one position selected from a plurality of mounting positions along the slide direction. A mounting structure for an electric junction box, wherein a plurality of at least one of the passive locking portion and the active locking portion are provided on the same straight line along the moving direction of the mounting adjusting body.
Configuration 2: The configuration according to Configuration 1, wherein the elastic piece and the passive locking portion of the first case and the elastic piece and the passive locking portion of the second case are symmetric with respect to the slide groove. Electric junction box mounting structure.
Configuration 3: The side walls of the first case and the second case are positioned on the outer side with the inner part forming the slide groove and the inner part and a step on both sides in the sliding direction of the inner part. The outer slide groove is formed by the short-side tip of the outer side of the side wall of the first case and the short-side tip of the outer side of the side wall of the second case. The mounting structure of the electrical junction box according to Configuration 1 or 2 , wherein the mounting adjustment body includes a second slide portion guided in the outer slide groove in the main body .
[0007]
According to the structure 1, an attachment adjustment body can be attached to the case of an electrical-connection box, without using welding. Therefore, the assembling work of the electrical junction box mounting structure is simplified.
Also, when the mounting adjustment body is attached to the wrong position of the electrical junction box, the elastic piece is bent to engage the passive locking portion of the elastic piece with the active locking portion of the mounting adjustment body. Can be easily released, and the attachment adjusting body can be moved again along the slide groove. Therefore, it is possible to easily correct misassembly.
[0008]
According to the structure 2, the possibility of incorrect assembly with respect to the case of the electrical connection box of the mounting adjustment body can be further reduced.
According to the configuration 3, the attachment adjusting body can be moved more smoothly along the slide groove having the inner slide groove and the outer slide groove.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is an exploded perspective view showing a main part of an electrical junction box mounting structure according to an embodiment of the present invention. The electrical connection box mounting structure 1 is for attaching the mounting adjustment body 20 to different positions of the electrical connection box 10 corresponding to different vehicle types, and mounting the electrical connection box 10 to a vehicle body (not shown) via the mounting adjustment body 20. Is.
The electrical junction box 10 includes an upper case 11 having a flat plate 13 and a side wall 14 erected on the peripheral edge of the flat plate 13, and a lower case 12 having a side wall 16 erected on the peripheral edge of the flat plate 15 and the flat plate 15. In this case, a bus bar (not shown) or the like is housed in a combined case 10a.
[0010]
The side wall 14 of the upper case 11 includes a mounting side wall portion 14 a for defining a slide groove as a predetermined portion of the side wall 14. The mounting side wall portion 14a has the same configuration as a mounting side wall portion 16a of the lower case 12 described later. A fitting side wall portion 14b is connected to both ends of the mounting side wall portion 14a. The fitting side wall portion 14b is provided with a fitting portion 14c that can be fitted on the side wall 16 of the lower case 12 at its tip.
[0011]
The flat plate 13 of the upper case 11 protrudes from the attachment side wall portion 14a at the end on the attachment side wall portion 14a side. The center part of the projected end part is a guide piece 13a that guides in the moving direction while supporting the mounting adjustment body 20, and both end parts sandwiching the guide piece 13a are elastic pieces 13b and 13d that can be elastically deformed. ing. A slit 13f is provided between the guide piece 13a and the elastic pieces 13b and 13d. The protruding tips of the elastic pieces 13b and 13d are projected to the outside of the case 10a from the protruding tip of the guide piece 13a. The elastic pieces 13b and 13d are provided with locking holes 13c and 13e as passive locking portions.
[0012]
The side wall 16 of the lower case 12 includes an attachment side wall portion 16 a as a predetermined portion of the side wall 16 for partitioning the slide groove. A fitting side wall portion 16b to which a fitting portion 14c of the upper case 11 is fitted is connected to both ends of the mounting side wall portion 16a.
A central portion of the mounting side wall portion 16a is an inner portion 16c disposed on the inner side of the case 10a, and both end portions sandwiching the inner portion 16c are outer portions 16d disposed on the outer side of the case 10a from the inner portion 16c. . The height of the inner portion 16c is set lower than that of the outer portion 16d so that an inner slide groove 17 (see FIG. 2) described later can be defined. The height of the outer portion 16d is the same as the height of the fitting side wall portion 16b. However, an engagement groove 16e for defining an outer slide groove 18 (see FIG. 2), which will be described later, is provided at the end of the outer surface 16d distal end surface 16f on the inner side 16c side. A portion 16g of the outer portion 16d on the outer side of the case 10a of the engaging groove 16e has a front end surface 16h for facilitating fitting of the outer slide portion 26 (see FIG. 3) described later into the engaging groove 16e. It is lower than the tip surface 16f.
[0013]
The flat plate 15 of the lower case 12 protrudes from the attachment side wall portion 16a at the end on the attachment side wall portion 16a side. A central portion of the projected end portion is a guide piece 15a that guides in the moving direction while supporting the attachment adjusting body 20, and both end portions sandwiching the guide piece 15a are elastic pieces 15b and 15d. A slit 15f is provided between the guide piece 15a and the elastic pieces 15b and 15d. The protruding tips of the elastic pieces 15b and 15d are projected to the outside of the case 10a from the protruding tip of the guide piece 15a. The elastic pieces 15b and 15d are provided with locking holes 15c and 15e as passive locking portions.
[0014]
The attachment adjusting body 20 includes a substantially rectangular parallelepiped main body 21. When the main body 21 is attached to the electrical junction box 10, the inner surface facing the predetermined portions 14a and 16a on the side wall of the case 10a and the outer surface having the same shape as the inner surface and disposed outside the case 10a And a side surface connecting the inner side surface and the outer side surface. The inner side surface and the outer side surface have a rectangular shape having short sides corresponding to the distance between the flat plate 13 of the upper case and the flat plate 15 of the lower case of the electrical junction box 10. The main body 21 is provided with a mounting hole 24 penetrating from the outer surface toward the inner surface. A screw (not shown) is passed through the attachment hole 24, and the attachment adjusting body 20 is attached to the vehicle body with the screw. The portion of the side surface of the main body 21 facing the flat plate 13 of the upper case (hereinafter referred to as “side upper portion 21a”) and the portion facing the flat plate 15 of the lower case (hereinafter referred to as “side lower portion 21b”) are actively locked. Two locking projections 23 a and 23 b as parts are provided at intervals in the long side direction of the outer surface of the main body 21.
[0015]
FIG. 2 shows a state in which the upper case 11 and the lower case 12 of the electrical junction box 10 shown in FIG. 1 are combined. As shown in FIG. 2, the flat plate 13 of the upper case 11 is provided with a connector portion 10b for inserting a connector (not shown) and a concave portion 10c for inserting a fuse.
[0016]
An inner slide groove 17 is defined by the tip of the inner part 16 c of the lower case 12 and the tip of the inner part of the upper case 11. An outer slide groove 18 is defined by the distal end of the outer portion 16 d of the lower case 12 and the distal end of the outer portion 14 d of the upper case 11. The elastic pieces 13b and 13d and the locking holes 13c and 13e of the upper case 11 and the elastic pieces 15b and 15d and the locking holes 15c and 15e of the lower case 12 are symmetrical with respect to the slide grooves 17 and 18. Therefore , they are arranged in line-symmetric positions.
[0017]
FIG. 3 is a perspective view of the mounting adjustment body 20 shown in FIG. 1 as viewed from the inner side. A pair of locking projections 23a, 23b provided on the upper side surface 21a of the mounting adjustment body 20 and a similar locking projection (not shown) provided on the lower side surface 21b facilitate the sliding of the mounting adjustment body 20. An inclined surface 23c is provided. The inclined surface 23c is formed by cutting off a corner of the rectangular parallelepiped locking protrusion 23b opposite to the other locking protrusion 23a.
A rectangular parallelepiped mounting rib 22 is provided on the inner surface of the mounting adjustment body 20. The mounting rib 22 extends in the short side direction at the central portion in the long side direction of the inner surface of the mounting adjusting body 20.
Further, outer slide portions 26 are provided on both sides of the mounting rib 22 at the central portion in the short side direction of the inner surface of the mounting adjustment body 20. The outer slide portion 26 is formed by the outer slide groove 18 defined by the front end surface 16h of the portion 16g outside the case 10a of the engagement groove 16e in the lower case 12 and the front end surface of the upper case 11 shown in FIG. And a base portion 26a that is slidably fitted to the base portion 26a. The outer slide portion 26 has a flange portion 26b that is slidably fitted into the engagement groove 16e of the lower case 12 and the same groove of the upper case 11 shown in FIG.
[0018]
An inner slide portion 25 is provided on the inner side surface of the mounting rib 22 at the center in the longitudinal direction. The inner slide portion 25 is slidably fitted into the inner slide groove 17 defined by the distal end surface of the inner portion 16c of the lower case 12 and the distal end surface of the upper case 11 shown in FIG. have. Further, the inner slide portion 25 has a flange portion 25 b that is locked by the inner surface of the inner portion 16 c of the lower case 12 and the inner surface of the inner portion of the upper case 11.
[0019]
FIG. 4 shows a state in which the attachment adjusting body 20 is attached to the electrical junction box 10. In order to attach the mounting adjustment body 20 to the electrical junction box 10 in this way, for example, the mounting adjustment body 20 is placed on the guide piece 15a and the elastic pieces 15b and 15d of the lower case 12 in the state shown in FIG. . At that time, the base portion 25a (see FIG. 3) of the inner slide portion 25 of the mounting adjustment body 20 is placed on the distal end surface of the inner portion 16c of the lower case 12, and the flange portion 25b of the inner slide portion 25 is placed on the inner portion 16c. Arrange on the inner surface side. Then, by combining the upper case 11 with the lower case 12, the state shown in FIG. 4 is obtained.
FIG. 4 shows a state in which the attachment adjusting body 20 is in the neutral position. The engagement protrusions 23 a and 23 b of the attachment adjusting body 20 are located between the elastic pieces 13 b and 13 d of the upper case 11. The engagement protrusions 23a and 23b of the attachment adjusting body 20 are also exposed from between the elastic pieces 15b and 15d of the lower case 12. The attachment adjusting body 20 is movable in the directions of arrows A1 and A2 in the drawing.
[0020]
FIG. 5 is a cross-sectional view taken along the line CC in FIG. As shown in FIG. 5, the base portion 25 a of the inner slide portion 25 of the attachment adjusting body 20 is slidably fitted in the inner slide groove 17. The flange portion 25b of the inner slide portion 25 is engaged with the inner surfaces of the inner portions 14c and 16c, thereby preventing the attachment adjusting body 20 from being detached from the electrical connection box 10.
[0021]
In FIG. 6, the mounting adjustment body 20 is moved in the A1 direction from the state shown in FIG. 4, and the outer slide portion 26 (see FIG. 3) is inserted into the outer slide groove 18 (see FIG. 2), and further locked. A state in which the attachment adjusting body 20 is fixed to the electrical connection box 10 by engaging the protrusion 23a with the locking holes 13c and 15c is shown. The outer slide part 26 is in contact with the end of the outer slide groove 18. The engagement between the locking projection 23a and the locking holes 13c and 15c is deep, and this engaged state is maintained firmly. In this state, the electric junction box 10 is attached to the right-hand drive vehicle.
Then, by bending and deforming the elastic pieces 13b and 15b in the direction in which they are separated from each other (in the direction of arrow B in the figure), the engagement between the locking projections 23a and the locking holes 13c and 15c can be released, and the attachment adjusting body 20 is It is possible to return to the neutral position.
[0022]
7, the mounting adjustment body 20 is moved in the A2 direction from the state shown in FIG. 4, and the outer slide portion 26 (see FIG. 3) is inserted into the outer slide groove 18 (see FIG. 2). A state in which the attachment adjusting body 20 is fixed to the electrical connection box 10 by engaging the protrusions 23b with the locking holes 13e and 15e is shown. The outer slide part 26 is in contact with the end of the outer slide groove 18. In this state, the electrical junction box 10 is attached to the left-hand drive vehicle.
By bending and deforming the elastic pieces 13d and 15d in the direction in which they are separated from each other (in the direction of arrow B in the figure), the engagement between the locking projections 23a and the locking holes 13e and 15e can be released, and the mounting adjustment body 20 is moved to the neutral position. It becomes possible to return to.
[0023]
In the electric junction box mounting structure 1 having the above-described configuration, the attachment adjusting body 20 can be attached to the case 10a of the electric junction box 10 without using welding. Therefore, the assembly work of the electrical junction box mounting structure 1 is simplified. Further, when the attachment adjusting body 20 is attached to an incorrect position of the electrical junction box 10, the elastic pieces 13b, 15b or 13d, 15d are bent to be attached to the locking holes 13c, 15c of the elastic pieces. The deep engagement of the adjusting body 20 with the locking projection 23a or the deep engagement between the locking holes 13e and 15e of the elastic piece and the locking protrusion 23b of the mounting adjusting body 20 can be easily released. It can be moved along the slide grooves 17 and 18 again. Therefore, it is possible to easily correct misassembly.
The elastic pieces 13b and 13d and the locking holes 13c and 13e of the upper case 11 are symmetric with the elastic pieces 15b and 15d and the locking holes 15c and 15e of the lower case 12 with the slide grooves 17 and 18 interposed therebetween. Yes. Further, the locking projections 23a and 23b provided on the upper side surface 21a of the mounting adjustment body 20 and the locking projection provided on the lower side surface 21b are symmetrical with respect to the slide grooves 17 and 18. Therefore, even if the attachment adjusting body 20 is attached to the electrical junction box 10 with the side surface upper portion 21a and the side surface lower portion 21b being reversed, there is no erroneous assembly.
[0024]
Further, in the electrical junction box mounting structure 1, the mounting adjustment body 20 can be smoothly moved along the slide groove including the inner slide groove 17 and the outer slide groove 18.
Since the inner slide groove 17 and the outer slide groove 18 are defined by the tips of the mounting side wall portions 14a and 16a of the upper and lower cases 11 and 12, they are portions for providing the slide grooves 17 and 18 in the vertical direction. There are no undercuts when molding the cases 11 and 12. Therefore, the formability of the upper and lower cases 11 and 12 is good.
[0025]
In addition, this invention is not limited to embodiment mentioned above, A suitable deformation | transformation, improvement, etc. are possible.
For example, an external component such as a connector may be attached to the electrical connection box 10 via the attachment adjusting body 20.
For example, in order to partition the inner slide groove 17, a groove, a notch, or the like may be provided on the distal end surface of the inner portion 16c. Three or more slide grooves and slide portions may be provided.
[0026]
【The invention's effect】
As described above, according to the present invention, since the attachment adjusting body can be attached to the case of the electrical junction box without using welding, the assembling work of the electrical junction box attachment structure is simplified. Also, when the mounting adjustment body is attached to the wrong position of the electrical junction box, the elastic piece is bent to engage the passive locking portion of the elastic piece with the active locking portion of the mounting adjustment body. Can be easily released, and the attachment adjusting body can be moved again along the slide groove. Therefore, it is possible to easily correct misassembly. In the present invention, if the elastic piece and the passive locking portion of the first case and the elastic piece and the passive locking portion of the second case are symmetrical with respect to the slide groove, the electrical connection box of the mounting adjustment body The possibility of incorrect assembly for this case can be further reduced. In the present invention, each of the side walls of the first case and the second case has an inner slide groove disposed on the inner side of the case of the electrical junction box and an outer slide disposed on the outer side of the case separately from the inner slide groove. By forming the grooves, the attachment adjusting body can be moved more smoothly along the slide grooves.
[Brief description of the drawings]
FIG. 1 is an exploded perspective view showing a main part of an electrical junction box mounting structure according to an embodiment of the present invention.
FIG. 2 is an assembled perspective view of an electrical junction box.
FIG. 3 is a perspective view of an attachment adjusting body.
FIG. 4 is a perspective view showing a mounting structure of an electrical junction box.
FIG. 5 is a cross-sectional view taken along the line CC in FIG.
FIG. 6 is a perspective view showing a state in which an attachment adjusting body is attached to a position of a right-hand drive vehicle specification with respect to the electric junction box.
FIG. 7 is a perspective view showing a state in which the attachment adjusting body is attached to the position of the left-hand drive vehicle specification with respect to the electric junction box.
FIG. 8 is a perspective view showing a mounting structure of a conventional electrical junction box.
9 is a perspective view of a principal part showing a state after the locking body of the electrical junction box mounting structure of FIG. 8 is mounted. FIG.
[Explanation of symbols]
1 Electrical junction box mounting structure 10 Electrical junction box 10a Case 11 Upper case (first case)
12 Lower case (second case)
13 Flat plate 13b, 13d Elastic piece 13c, 13e Locking hole (passive locking part)
14 Side wall 15 Flat plate 15b, 15d Elastic piece 15c, 15e Locking hole (passive locking part)
16 Side wall 17 Inner slide groove (slide groove)
18 Outer slide groove (slide groove)
20 Mounting adjustment body 23a, 23b Locking protrusion (active locking part)
25 Inside slide part (slide part)
26 Outer slide part (slide part)

Claims (3)

In the mounting structure of the electrical connection box, the mounting adjustment body is assembled to the case of the electrical connection box, the electrical connection box is attached to the vehicle body via the mounting adjustment body, or the external component is attached to the electrical connection box.
The case has a flat plate and a side wall erected from the flat plate in the direction of the other side of the flat plate as a short direction , and the first case and the second case are combined.
A linear slide groove extending in the longitudinal direction is defined in such a manner that a short- side tip in a predetermined region in the longitudinal direction of the side wall of the first case and a short-direction tip in a predetermined region in the long direction of the side wall of the second case are separated. A part of each of the flat plate of the first case and the flat plate of the second case is an elastic piece extending beyond the side wall standing portion, and the elastic piece is used to lock the attachment adjusting body. Is equipped with a passive locking part,
The mounting adjustment body comprises a main body that can be sandwiched and mounted between the elastic piece of the first case and the elastic piece of the second case, and is fitted into the slide groove to slide the mounting adjustment body into the slide. A slide portion that is movably supported along the groove is provided in a portion facing the slide groove of the main body, and the active lock portion that is engaged with the passive lock portion according to the movement of the mounting adjustment body is provided in the main body. On the surface facing the elastic piece of
At least one of the passive locking portions and at least one of the active locking portions are engaged so that the mounting adjustment body can be locked at one position selected from a plurality of mounting positions along the slide direction. A mounting structure for an electric junction box, wherein a plurality of at least one of the passive locking portion and the active locking portion are provided on the same straight line along the moving direction of the mounting adjusting body.   2. The electricity according to claim 1, wherein the elastic piece and the passive locking portion of the first case and the elastic piece and the passive locking portion of the second case are symmetrical with respect to the slide groove. Connection box mounting structure. Each side wall of the first case and the second case is formed to be located on the outer side with a step on the inner side forming the slide groove and on both sides in the sliding direction of the inner side. An outer slide groove is formed by a short-side tip of the outer side of the side wall of the first case and a short-side tip of the outer side of the side wall of the second case. The mounting structure for an electric junction box according to claim 1 or 2 , wherein the adjustment body includes a second slide portion guided in the outer slide groove in the main body .

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