JP5173470B2 - Electrical junction box mounting structure - Google Patents

Description

  The present invention relates to an electrical junction box mounting structure in which an electrical junction box can be easily removed from a fixed bracket that is fixed to a vehicle body when the vehicle is disassembled.

  Various electric connection boxes are mounted on vehicles such as automobiles. Many of these junction boxes are fixed to the vehicle body with bolts. In the case of fixing with a bolt, a mounting bracket is provided in a resin electrical connection box, the bolt is passed through the mounting bracket, and the bolt is fastened to the vehicle body side, thereby fixing the electrical connection box to the vehicle body.

By the way, in recent years, it has been strongly desired that the electric junction box can be easily detached from the vehicle body when the vehicle is dismantled due to a request for recycling of a vehicle such as an automobile. As a method to achieve this, a weak part is provided in a part of the mounting bracket, and the weak part of the mounting bracket is destroyed by applying a larger force than the normal holding force to the electrical junction box, so that the electrical connection can be made. There has been proposed an electrical junction box that can be easily detached from the vehicle body and has easy disassembly (see Patent Document 1 and Patent Document 2).
JP 2006-191769 A JP 2005-86983 A

  However, fixing the electrical connection box to the vehicle body with bolts in the first place is very labor intensive and can be easily installed, and when necessary, it can be easily connected simply by pulling the wire harness. Ideally, the box can be removed.

  The present invention has been made in view of the above-described circumstances, and its purpose is to easily install and to destroy the mounting portion simply by applying a strong force to the electric junction box when the vehicle is disassembled. It is another object of the present invention to provide an electrical junction box mounting structure that allows the electrical junction box to be removed from the vehicle body.

In order to achieve the above-described object, the electrical junction box mounting structure according to the present invention is characterized by the following (1) to (5).
(1) An electric junction box is connected to the insertion plate portion of a fixed bracket made of a rigid material having a fixed width strip-like insertion plate portion whose distal end in the insertion direction is a free end and the proximal end side is fixed. An electrical connection box mounting structure for mounting the electrical connection box to the fixed bracket by engaging the back surface,
On the back surface of the electrical connection box, a slide space is provided in which the insertion plate portion is inserted along the back surface.
When receiving a force in a direction perpendicular to the plate surface of the insertion plate portion from the insertion plate portion inserted into the slide space on the outside of the slide space, the insertion plate portion receives the force. A resin-made holding wall is provided to prevent separation of the electrical junction box from
The holding walls are provided so as to protrude in a predetermined width from the outside in the width direction of the insertion plate portion toward the inside corresponding to both side edges in the width direction of the insertion plate portion,
An oblique cut portion is provided at an end portion of each holding wall on the rear side in the insertion direction of the insertion plate portion so that the width of the holding wall decreases toward the rear side in the insertion direction.
(2) The electrical junction box mounting structure of (1) above,
The wire harness lead-out portion of the electrical junction box from which the wire harness linear body is pulled out is provided on the side where the oblique cut portion is located.
(3) The electrical junction box mounting structure according to (1) or (2) above,
On the outer surface side of the slide space, a branch wall having a size covering the entire width of the insertion plate portion and made of a material having higher rigidity than the holding wall is provided, and both side edges in the width direction of the branch wall are provided. It is engaged with the inner surface of the holding wall, and the force from the insertion plate portion is transmitted to the holding wall via the supporting wall.
(4) The electrical junction box mounting structure of (3) above,
Slide rail portions that slide along the inner surface of the holding wall are provided on both side edges in the width direction of the supporting wall, and the supporting wall is placed on the back surface of the electric junction box while the sliding rail portion slides on the holding wall. To be fixed.
(5) The electrical junction box mounting structure according to (1) or (2) above,
As a part of forming the slide space, there are provided a pair of slide grooves in which both side edges in the width direction of the insertion plate portion slide, and each of the slide grooves is substantially perpendicular to the back surface of the electric junction box. It is ensured inside a slide rail portion having an L-shaped cross section having a vertical wall and a lateral wall projecting inwardly at the tip of the vertical wall, and the lateral wall of the slide rail portion corresponds to the holding wall.

According to the mounting structure having the above configuration (1), it is only necessary to insert the insertion plate portion of the fixing bracket into the slide space on the back surface of the electric junction box, that is, when the fixing bracket is fixed to the vehicle body in advance. The electric connection box can be easily attached to the fixed bracket simply by fitting the slide space on the back surface of the electric connection box to the insertion plate portion of the bracket. In that state, if a force in the direction away from the fixed bracket is applied to the electrical junction box, a reactive force acts on the retaining wall from the stationary bracket, but the reaction force is reliably received by the retaining wall. Is held by the fixed bracket without separation.
In this state, when a forceful peeling force is applied to the electrical junction box so that the separation force reaches the side where the diagonal cut portion of the holding wall is present due to a request for vehicle disassembly, the reaction force is From this part, it comes to concentrate on the diagonal cut part of the holding wall, and that part is the starting point, and the holding wall is broken so as to be rolled up. Therefore, the electric connection box can be easily detached from the fixed bracket while breaking the holding wall only by forcibly applying a force in the peeling direction to the electric connection box, and easy disassembly can be realized.
According to the mounting structure having the configuration of (2) above, the electric connection box can be easily detached from the fixed bracket by simply pulling the wire harness drawn out from the wire harness drawing portion of the electric connection box with a strong force. be able to. In addition, the linear body of a wire harness contains an electric wire, an optical fiber, a tube, etc.
According to the mounting structure having the above configuration (3), the entire width of the insertion plate portion of the fixed bracket can be supported from the back side by the highly rigid support wall supported by the holding walls at both ends in the width direction. The electric junction box can be supported without rattling while exhibiting a stable holding force. In addition, because the branch wall is made of a material that is higher in rigidity than the holding wall, the holding wall always breaks before the branch wall breaks, and the destruction location is constant, so It can proceed smoothly. Further, by providing the supporting wall, the number of places where the insertion plate portion of the fixing bracket is supported by the surface is increased, so that the holding wall can be reduced, and as a result, disassembly can be further facilitated. The support wall may be formed integrally with the insertion plate portion of the fixed bracket, and in this case, the structure becomes simpler.
According to the mounting structure having the above configuration (4), the supporting wall can be formed of a hard resin material different from the electric junction box and can be slid and engaged with the holding wall later. Compared with attaching a branch wall to a holding wall by this, manufacture and assembly are easy.
According to the mounting structure having the configuration (5), easy disassembly of the electrical junction box can be realized with a simple configuration in which a pair of slide grooves are provided on the back surface of the electrical junction box.

  According to the present invention, since the diagonally cut portion is provided on the holding wall which is forceful at the time of breaking, the holding wall can be smoothly broken starting from the diagonally cut portion, and the electric junction box can be easily removed. be able to.

  The present invention has been briefly described above. Furthermore, the details of the present invention will be further clarified by reading through the best mode for carrying out the invention described below with reference to the accompanying drawings.

  DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, preferred embodiments of the invention will be described in detail with reference to the drawings.

<First Embodiment>
1 is a perspective view showing the back surface of the electrical junction box of the first embodiment, FIG. 2 is a perspective view of the back side as seen from below, FIG. 3 is an enlarged view of a portion III in FIG. 2, and FIG. The perspective view seen from the inner surface side of the branch wall member attached to the back, FIG. 5 is the perspective view which looked at the outer surface side of the same branch wall member from the bottom, FIG. 6 is the enlarged view of the VI part of FIG. 5, and FIG. FIG. 8 is a perspective view showing a state in which the branch wall member is going to be attached to the back surface of the box, FIG. 8 is a perspective view showing a state in which the branch wall member is aligned with the back surface of the electric connection box, and FIG. FIG. 10 is a perspective view showing a state in which the electric junction box is being attached to the fixing bracket, and FIG. FIG. 12 is a perspective view showing the next stage of FIG. 12, and FIG. FIG. 13 is a perspective view showing the locked state of FIG. 12 with the supporting wall member removed, FIG. 14 is a view of the locked state seen from the back side of the fixing bracket, and FIG. 15 is an electrical connection box. FIG. 16A to FIG. 16D are side views schematically showing the progress of destruction when the electric connection box is removed by breaking the holding wall on the back surface of the electric connection box. FIG.

  As shown in FIG. 10, the electrical junction box mounting structure of the present embodiment is a structure for fixing the back surface of the lower cover ML of the electrical junction box M to the fixing bracket 100 fixed to the vehicle body side.

  The fixed bracket 100 fixed to the vehicle body side is a strip-shaped plug having a constant width in which the upper end, which is the distal end in the insertion direction with respect to the electrical junction box M, is a free end and the lower end, which is the base end, is fixed. It consists of a press-molded product made of steel (rigid material) having a plate portion 104. The fixing bracket 100 has the upper half portion of the flat substrate 101 as the insertion plate portion 104, and is fixed to the vehicle body by fixing pieces 103 and 102 provided at the lower end and both side edges of the lower half portion of the substrate 101. Has been. Two lock holes 105 are formed near the upper end of the insertion plate portion 104.

  The electrical junction box M is fixed to the insertion plate portion 104 of the fixing bracket 100 by inserting a portion on the back side from above, and a wire harness (more specifically, a wire) It has a wire harness lead-out portion 91 for pulling out a wire W) such as a wire of a harness, an optical fiber, a tube, or the like. Hereinafter, the configuration on the back side of the electrical junction box M will be described in detail.

  As shown in FIG. 1, a resin lower cover ML is provided on the back side of the electrical junction box M. On the back surface of the lower cover ML, lock arms 10 are provided at two positions in the left-right width direction. When the insertion plate portion 104 of the fixing bracket 100 shown in FIG. 10 slides upward along the back surface of the lower cover ML, the lock arm 10 is pushed and bent by the insertion plate portion 104, and the lock projection 10 11 is engaged with the lock hole 105 of the insertion plate portion 104. Then, the fixing bracket 100 is locked so as not to move in the sliding direction. Further, the lock arm 10 can be released by pushing the free end side of the lock arm 10 to bend the lock arm 10.

  A pair of left and right support wall fixing portions 20 and a slide stopper portion 29 are provided on the rear surface of the lower cover ML on the outer side in the width direction from the place where the lock arm 10 is disposed. A pair of guide ribs 25 are provided between the lock arm 10 and the supporting wall fixing portion 20 and the slide stopper portion 29 to guide the sliding of the supporting wall member 50 and the insertion plate portion 104 of the fixing bracket 100. It has been.

  The support wall fixing part 20 is a part for fixing both ends of the support wall member 50 shown in FIG. 4 as shown in FIG. The supporting wall member 50 is fixed at both ends in the width direction to the supporting wall fixing portion 20, so that the insertion plate portion 104 of the fixing bracket 100 is inserted between the supporting wall member 50 and the back surface of the lower cover ML. It is a member for forming the slide space 60. Therefore, the supporting wall fixing part 20 is located on the outer surface of the slide space 60.

  Further, the slide stopper 29 moves the support wall member 50 further upward and downward when the support wall member 50 is slid from the bottom to the top as shown in FIG. 8 and assembled to the lower cover ML. This is a portion that is locked so as not to have a stopper wall 29a and an engaging projection 29b.

  Further, the guide rib 25 has a function of defining the sliding position of the supporting wall member 50 (the height direction position and the left-right position from the back surface of the lower cover ML) and the sliding of the insertion plate portion 104 of the fixing bracket 100. It is the part that fulfills the function of guiding. The former function is that the inner surface of the main surface plate 50A of the supporting wall member 50 shown in FIGS. 4 to 6 is in sliding contact with the end surface of the guide rib 25, and the inner surface of the end wall 53 of the supporting wall member 50 is the outer surface of the guide rib 25. Demonstrated by sliding in contact. As shown in FIG. 11, the latter function is exhibited when both side edges in the width direction of the insertion plate portion 104 of the fixed bracket 100 are in sliding contact with the inner surface of the guide rib 25.

  As shown in FIGS. 2 and 3, the support wall fixing portion 20 is provided with two slide rail portions (corresponding to holding walls described later) 21 and 22 projecting inward from the outer side in the width direction of the lower cover ML. Yes. The lower slide rail portion 21 and the upper slide rail portion 22 are different in height from the back surface of the lower cover ML, and the upper slide rail portion 22 having a higher height and the lower slide having a lower height. Between the rail portion 21, there is a sliding clearance for sliding the upper rail 52 of the supporting wall member 50 shown in FIGS. 4 to 6 (the upper and lower slide rail portions are completely displaced and do not overlap with each other. Is not a gap, but is a gap when viewed from the sliding direction, and is referred to as a gap here) 26. The slide gap 26 is set to a size corresponding to the thickness 56 of the upper rail 52 and is continuous with the slide space 22 a on the inner surface of the upper slide rail portion 22.

  A slide space 21 a in which the lower rail 51 of the supporting wall member 50 slides is provided on the inner surface side of the lower slide rail portion 21. Further, the thickness 27 of the lower slide rail portion 21 is set so as to fit into a step 57 (also referred to as a slide gap) between the lower rail 51 and the upper rail 52 of the supporting wall member 50. Further, a slide gap 23 for sliding the end wall 53 of the support wall member 50 is provided between the inner edge of the lower slide rail portion 21 and the guide rib 25.

  The lower slide rail portion 21 and the upper slide rail portion 22 receive a force in a direction perpendicular to the plate surface of the insertion plate portion 104 from the insertion plate portion 104 inserted into the slide space 60. In addition, this force is received through the upper and lower rails 52 and 51 of the supporting wall member 50 and serves as a holding wall that prevents the electrical junction box M from separating from the insertion plate portion 104. The lower slide rail portion 21 and the upper slide rail portion 22 protrude with a predetermined width from the outer side in the width direction of the lower cover ML to the inner side, and in particular, the lower end of the lower slide rail portion 22 (that is, the insertion) On the rear side of the plate portion 104 in the insertion direction, there is provided an oblique cut portion 21c that becomes narrower as the width of the slide rail portion 22 goes to the rear side in the insertion direction.

  On the other hand, as shown in FIGS. 4 to 6, the supporting wall member 50 includes a main surface plate 50 </ b> A having a size that covers the entire width of the insertion plate portion 104 of the fixed bracket 100, and both width direction ends of the main surface plate 50 </ b> A. End walls 53 provided perpendicularly to each other, lower rails (slide rail portions) 51 and upper rails (slide rail portions) 52 projecting like ribs on the outer surface of each end wall 53, and the main plate 50A There are provided two ribs 58 provided on the inner surface, and lock protrusions 59 protruding from the extensions of the ribs 58. When the locking protrusion 59 hits against the stopper wall 29a of the slide stopper portion 29, it engages with the engaging protrusion 29b and is prevented from coming off.

  The lower rail 51 is a protruding portion that engages with the inner surface of the lower slide rail portion 21 of the support wall fixing portion 20, and is inserted into the slide space 21 a on the inner surface of the lower slide rail portion 21. The upper rail 52 is a protrusion that engages with the inner surface of the upper slide rail portion 22 of the support wall fixing portion 20, and the slide gap 26 between the lower slide rail portion 21 and the upper slide rail portion 22 is formed. Then, it is inserted into the slide space 22 a on the inner surface of the upper slide rail portion 22. Further, the end wall 53 is a portion that slides into the slide gap 23 between the inner edge of the lower slide rail portion 21 of the supporting wall fixing portion 20 and the outer surface of the guide rib 25.

  The supporting wall member 50 is formed of a hard resin having a rigidity higher than that of the resin constituting the lower cover ML, and is attached to the back surface of the lower cover ML later. Next, the attachment procedure of the branch wall member 50 will be described.

  To attach the supporting wall member 50 to the back surface of the lower cover ML, first, as shown in FIG. 7, the supporting wall member 50 is directly opposed to the back surface of the lower cover ML, and the supporting wall member 50 is directed toward the back surface of the lower cover ML. As shown in FIG. 8, the upper rail 52 is placed on the upper surface of the lower slide rail portion 21, and the inner surface of the main surface plate 50A of the supporting wall member 50 is applied to the end surface of the guide rib 25, as shown in FIG. The inner surface of the end wall 53 of the member 50 is applied to the outer surface of the guide rib 25.

  Next, the supporting wall member 50 is slid upward as indicated by an arrow Y2. Then, as shown in FIG. 9, the upper rail 52 of the branch wall member 50 enters the inner surface of the upper slide rail portion 22 of the branch wall fixing portion 20, and the lower rail 51 is the inner surface of the lower slide rail portion 21. Get in. As a result, the upper slide rail portion 22 and the upper rail 52, and the lower slide rail portion 21 and the lower rail 51 engage with each other in the direction perpendicular to the back surface of the lower cover ML, so that the supporting wall member extends from the insertion plate portion 104. 50 (force in a direction perpendicular to the back surface of the lower cover ML) is transmitted to the slide rail portions 21 and 22 of the supporting wall fixing portion 20 via the rails 51 and 52 of the supporting wall member 50.

  Further, at the same time when the rails 51 and 52 at both ends in the width direction of the branch wall member 50 are engaged with the slide rail parts 21 and 22 of the branch wall fixing portion 20, the lock projection piece 59 of the branch wall member 50 Then, it hits against the stopper wall 29a of the slide stopper portion 29 and is prevented from going upward any more, engages with the engaging projection 29b, and is prevented from coming down so as not to go down.

  By attaching the branch wall member 50 in this manner, a slide space 60 into which the insertion plate portion 104 of the fixed bracket 100 is inserted is secured between the main surface plate 50A of the branch wall member 50 and the back surface of the lower cover ML. The The above-described lock arm 10 faces the slide space 60.

  Next, the electrical connection box M in a state where the supporting wall member 50 is assembled to the back surface of the lower cover ML as described above is fixed to the fixing bracket 100 fixed to the vehicle body, and the electrical connection is performed along with the vehicle disassembly. An operation for removing the box M from the fixed bracket 100 will be described.

  In order to fix the electric junction box M to the fixing bracket 100 fixed to the vehicle body, as shown in FIGS. 10 to 14, the insertion plate portion 104 of the fixing bracket 100 is inserted into the slide space 60 secured on the back surface of the lower cover ML. Plug in. That is, when the fixing bracket 100 is fixed to the vehicle body in advance, the electric connection box M is moved in the direction indicated by the arrow Y3, and the rear surface of the electric connection box M is slid to the insertion plate portion 104 of the fixing bracket 100. The space 60 is fitted. Then, as shown in FIG. 13, the lock projection 11 of the lock arm 10 engages with the lock hole 105 of the insertion plate portion 104, and the electrical junction box M and the fixing bracket 100 are locked. In this way, the electrical connection box M can be easily attached to the fixed bracket 100 simply by fitting the back surface of the electrical connection box M to the insertion plate portion 104 from above.

  Next, in a state where the lock arm 10 cannot be operated, when the electric junction box M is removed along with the vehicle dismantling, the wire harness W pulled out from the lower portion of the electric junction box M is strongly pulled in the direction of arrow F in FIG. Then, as shown in FIG. 16A, a rotational force E in a direction away from the fixed bracket 100 acts on the electrical junction box M, and a reaction force acts on the supporting wall member 10 from the fixed bracket 100. Then, the force is transmitted from the lower rail 51 and the upper rail 52 of the support wall member 50 to the lower slide rail portion 21 and the upper slide rail portion 22 of the support wall fixing portion 20. It is accepted.

  Normally, in this state, the slide rail portions 21 and 22 hold the electric junction box M against the above-mentioned force. However, when a certain amount of force is applied, the slide rail portions 21 and 22 are lowered as shown in FIG. The side slide rail 21 begins to deform. That is, when a strong detachment force is exerted on the oblique cut portion 21c at the lower end of the slide rail portion 21, stress is concentrated on the oblique cut portion 21c, and that portion serves as a starting point. As shown in FIG. 16C, the upper slide rail portion 22 is also raised in the same manner. Finally, the slide rail portion 21 is completely opened as shown in FIG. The member 50 is detached from the lower cover ML. Therefore, the electric connection box M can be easily detached from the fixing bracket 100 while destroying the slide rail portions 21 and 22 only by forcibly applying the force in the peeling direction to the electric connection box M, and easy disassembly. Can be realized.

  In this case, the electrical connection box M can be easily detached from the fixed bracket 100 simply by pulling the wire harness W pulled out from the wire harness lead-out portion 91 below the electrical connection box M with a strong force.

  In the case of the present embodiment, the entire width of the insertion plate portion 104 of the fixed bracket 100 can be supported from the back surface by the highly rigid supporting wall member 50, so that it does not rattle while exhibiting a stable holding force. The electric junction box M can be supported. Moreover, since the supporting wall member 50 is made of a material having higher rigidity than the lower cover ML, the slide rail portions 21 and 22 of the supporting wall fixing portion 20 are always destroyed before the supporting wall member 50 is destroyed. Thus, the destruction can be progressed smoothly by making the destruction portion constant. Further, by providing the supporting wall member 50, the insertion plate portion 104 of the fixing bracket 100 is supported on many surfaces, so that the slide rail portion 21 and the upper slide rail portion 22 can be reduced, and as a result, Easy to dismantle. The support wall member 50 may be formed integrally with the insertion plate portion 104 of the fixed bracket 100. In this case, the structure becomes simpler. Further, instead of using a material made of a highly rigid material as the supporting wall member 50, the supporting wall member 50 can be similarly implemented by increasing the thickness of the supporting wall member 50 or providing the supporting wall member 50 with a reinforcing structure. Alternatively, instead of providing the support wall member 50 made of a high-rigidity material, when the electrical junction box M is attached to the fixed bracket 100, the reinforcement that increases the rigidity by the cooperation of the support wall member 50 and the fixed bracket 100. A structure may be provided.

  Further, the supporting wall member 50 is formed of a hard resin material different from that of the lower cover ML, and is then slid and assembled to the lower cover ML. Therefore, the supporting wall member 50 is assembled into the lower cover ML by molding or the like. Easy to manufacture and assemble.

Second Embodiment
Next, a second embodiment will be described. In the second embodiment, the same components as those in the first embodiment are denoted by the same reference numerals and description thereof is omitted.

  FIG. 17 is a perspective view showing a state in which the fixing bracket is about to be inserted into the back surface of the electric connection box of the second embodiment, and FIG. 18 is a perspective view showing a state in which the electric connection box is locked to the fixing bracket.

  In the second embodiment, slide grooves 61 for inserting both side edges in the width direction of the insertion plate portion 104 of the fixing bracket 100 are provided directly on the back surface of the lower cover ML2, and the supporting wall member in the first embodiment is provided. 50 is omitted.

  A pair of slide grooves 61 are provided with the groove openings facing in the left-right direction. 130b, and is secured inside the slide rail portion 130 having an L-shaped cross section. In the case of this embodiment, the horizontal wall 130 b of the slide rail portion 130 corresponds to a holding wall that receives a vertical force from the insertion plate portion 104. Therefore, the width of the lateral wall 130b is inserted into the lower end of the lateral wall 130b of the slide rail portion 130 (that is, the end of the stationary bracket 100 on the rear side in the insertion direction). An oblique cut portion 131 is provided that becomes narrower toward the rear side in the direction.

  Also in this embodiment, in normal times, the lateral wall 130b of the slide rail portion 130 receives the reaction force from the insertion plate portion 104 of the fixed bracket 100. When a force of a certain level or more is applied, the stress concentrates on the oblique cut portion 131, and that portion is the starting point, the horizontal wall 130 b is rolled up, and the electrical junction box M is detached from the insertion plate portion 104. Therefore, the electric junction box M can be easily detached from the fixed bracket 100 by simply pulling the wire harness W, and easy disassembly can be realized. In this case, easy disassembly of the electrical junction box M can be realized with a simple configuration in which only a pair of slide rail portions 130 are provided on the back surface of the electrical junction box M.

  As described above, according to the first embodiment and the second embodiment of the present invention, since the oblique cut portion is provided in the portion of the holding wall to which force is applied first at the time of breakage, the oblique cut portion is the starting point. Thus, the holding wall can be broken smoothly, and the electric junction box can be easily removed.

  In addition, this invention is not limited to embodiment mentioned above, A deformation | transformation, improvement, etc. are possible suitably. In addition, the material, shape, dimensions, number, arrangement location, and the like of each component in the above-described embodiment are arbitrary and are not limited as long as the present invention can be achieved.

It is a perspective view which shows the back surface of the electrical junction box of 1st Embodiment of this invention. It is the perspective view which looked at the back of the electrical junction box from the bottom. It is an enlarged view of the III section of FIG. It is the perspective view seen from the inner surface side of the branch wall member attached to the back surface of the same electrical junction box. It is the perspective view which looked at the outer surface side of the same supporting wall member from the bottom. It is an enlarged view of the VI section of FIG. It is a perspective view which shows the initial state which is going to attach a branch wall member to the back surface of the same electrical junction box. It is a perspective view which shows the state which aligned the branch wall member to the back surface of the same electrical junction box. It is a perspective view which shows the assembly state by the side of the electrical junction box which locked the supporting wall member by sliding up from the step of FIG. It is a perspective view which shows the state which is going to attach the said electrical-connection box with respect to a fixed bracket. It is a perspective view which shows the next step of FIG. It is a perspective view which shows the state which locked the electric junction box to the fixing bracket as the next step of FIG. It is a perspective view which removes a supporting wall member and shows the locked state of FIG. It is the figure which looked at the locked state from the back side of a fixed bracket. It is a perspective view for an operation explanation when removing an electric junction box. (A)-(d) is a side view which shows typically the progress of destruction at the time of destroying the holding wall of the back surface of an electrical junction box, and removing an electrical junction box. It is a perspective view which shows the state which is going to insert a fixing bracket in the back surface of the electrical junction box of 2nd Embodiment of this invention. It is a perspective view which shows the state which the electric junction box locked to the fixing bracket.

Explanation of symbols

M: Electric junction box ML: Lower cover 10: Lock arm 11: Lock projection 20: Branch wall fixing part 21: Lower slide rail part (holding wall)
21c: Oblique cut part 22: Upper slide rail part (holding wall)
50: Branch wall member (branch wall)
51: Lower rail (slide rail)
52: Upper rail (slide rail)
60: Slide space 61: Slide groove 91: Wire harness lead part 100: Fixed bracket 104: Insertion plate part 130: Slide rail part 130a: Vertical wall 130b: Horizontal wall (holding wall)
131: Diagonal cut part W: Wire harness

Claims (5)

The rear surface of the electrical junction box is engaged with the insertion plate portion of a rigid bracket made of rigid material having a fixed-width band plate insertion plate portion whose distal end in the insertion direction is a free end and the proximal end side is fixed. By combining, the electrical connection box mounting structure for mounting the electrical connection box to the fixed bracket,
On the back surface of the electrical connection box, a slide space is provided in which the insertion plate portion is inserted along the back surface.
When receiving a force in a direction perpendicular to the plate surface of the insertion plate portion from the insertion plate portion inserted into the slide space on the outside of the slide space, the insertion plate portion receives the force. A resin-made holding wall is provided to prevent separation of the electrical junction box from
The holding walls are provided so as to protrude in a predetermined width from the outside in the width direction of the insertion plate portion toward the inside corresponding to both side edges in the width direction of the insertion plate portion,
An inclined cut portion is provided at an end of each holding wall on the rear side in the insertion direction of the insertion plate portion so that the width of the holding wall becomes narrower toward the rear side in the insertion direction. Electric junction box mounting structure.   The electrical junction box attachment structure according to claim 1, wherein a wire harness lead portion of the electrical junction box from which a linear body of the wire harness is drawn is provided on a side where the oblique cut portion is present.   On the outer surface side of the slide space, a branch wall having a size covering the entire width of the insertion plate portion and made of a material having higher rigidity than the holding wall is provided, and both side edges in the width direction of the branch wall are provided. 3. The electrical connection according to claim 1, wherein the electrical connection is engaged with an inner surface of the holding wall, and a force from the insertion plate portion is transmitted to the holding wall through the supporting wall. Box mounting structure.   Slide rail portions that slide along the inner surface of the holding wall are provided on both side edges in the width direction of the supporting wall, and the supporting wall is placed on the back surface of the electric junction box while the sliding rail portion slides on the holding wall. The mounting structure for an electrical junction box according to claim 3, wherein the electrical junction box is fixed.   As a part of forming the slide space, there are provided a pair of slide grooves in which both side edges in the width direction of the insertion plate portion slide, and each of the slide grooves is substantially perpendicular to the back surface of the electric junction box. It is secured inside a slide rail portion having an L-shaped cross section having a vertical wall and a lateral wall projecting inwardly at the tip of the vertical wall, and the lateral wall of the slide rail portion corresponds to the holding wall. The mounting structure for an electrical junction box according to claim 1 or 2.

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