Mounting structure

Abstract

To provide a mounting structure, which enables electronic control components such as an ECU to be easily mounted on a bracket and prevents the mounted components from being detached, and prevents vibration caused by running of a vehicle from influencing the ECU.SOLUTION: In a state where an electronic control component 10 is mounted on a bracket 1A, a side wall part 2 is maintained in a bending state of being pushed and bending in an outward direction X2 which is the opposite direction to a bottom wall extending direction X1. The side wall part 2 continually presses the electronic control component 10 in the bottom wall extending direction X1 by return force of the side wall part 2 generated by the bending state. A lower surface side locking part 13 is held in a state of pressing the bottom wall locking part 3A. An elastic push-up piece 3B is maintained in a pushing down state of being pushed downward in a height direction Z1. While the elastic push-up piece 3B continually pushes the electronic control component 10 upward in the height direction Z1 to float the component from the bottom wall part 3 by return force of the elastic push-up piece 3B generated by the pushing down state, a side surface part 12 for mounting is held in a state of pressing a side wall upper end-side locking part 2A.SELECTED DRAWING: Figure 10

Description

[Technical field]

[0001] The present invention relates to a mounting structure that enables a bracket to be attached to an electronic control component (mounting member) such as an ECU, for mounting the component to a vehicle body. [Background technology]

[0002] For example, an ECU (Electronic Control Unit), which is an electronic control component of a vehicle, contains a circuit board (electronic control unit) in a housing (ECU case), and is attached to a panel member on the vehicle body side by an ECU bracket assembled to the housing. Patent Document 1 describes such a bracket, and describes a technique for firmly assembling the ECU so that it does not easily come off after assembly, and for suppressing vibrations applied to the ECU due to vibrations caused by the vehicle's running. However, this bracket requires a relatively strong force to be applied continuously from the start of assembly of the ECU to the completion of assembly (see FIG. 12B of Patent Document 1), so there remains an issue regarding ease of assembly.

[0003] As such, with regard to a mounting structure for attaching a bracket to an electronic control component such as an ECU, it is desirable to simultaneously achieve three high levels of performance: the ECU can be easily attached to the bracket, it will not easily come off once attached, and the transmission of driving vibrations to the ECU when installed in the vehicle body can be suppressed. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Patent No. 6533248 Summary of the Invention [Problem to be solved by the invention]

[0005] The object of the present invention is to provide a mounting structure for an electronic control part and a bracket, which allows an electronic control part such as an ECU to be easily mounted on the bracket, is difficult to come off after mounting, and is unlikely to affect the mounted ECU due to vibrations caused by the vehicle traveling.

[0006] The mounting structure for solving the above problem is as follows: A mounting structure for mounting a bracket for an electronic control component to be mounted on a vehicle body side to the electronic control component, comprising: The electronic control component has an upper surface, a lower surface, and a side surface extending in a vertical direction so as to connect the outer edge sides of the upper surface and the lower surface, and a side surface portion including a partial section in a side surface width direction perpendicular to the vertical direction of the side surface forms an attachment side surface portion, and a lower surface side engaging portion corresponding to the attachment side surface portion is formed on the lower surface, The bracket is a resin injection molded body integrally having an L-shaped bracket main body (mounting portion) including a side wall portion and a bottom wall portion extending from a lower end of the side wall portion in a height direction toward a predetermined bottom wall extending direction perpendicular to the height direction, and an engaging and fixing portion for mounting the bracket to a vehicle body side, The side wall portion has a side wall upper end side engaging portion, The bottom wall portion has a bottom wall engaging portion and an elastic push-up piece extending obliquely upward in the height direction, The elastic push-up piece is located between the side wall upper end side engaging portion and the bottom wall engaging portion in the bottom wall extending direction, The electronic control component is attached to the bracket by a rotational attachment operation in which the lower surface side engagement portion is engaged with the bottom wall engagement portion of the bracket in the bottom wall extending direction, the side wall portion is tilted in the opposite direction to the bottom wall extending direction using the engagement position as a fulcrum, and the elastic push-up piece is pushed downward in the height direction by elastic deformation of the bracket, and the electronic control component is attached to the bracket by a rotational attachment operation in which the lower surface side engagement portion is engaged with the bottom wall engagement portion of the bracket in the bottom wall extending direction, In this mounted state, the bracket is maintained in an elastically deformed state in which the side wall portion has returned to a tilt angle remaining from the maximum tilt angle during the pivot mounting operation, and the elastic return force generated by this elastic deformation state causes the side wall portion to continuously press the electronic control component in the bottom wall extension direction, the lower surface side engaging portion is maintained in a state pressing the bottom wall engaging portion, and the elastic push-up piece is maintained in an elastically deformed state pressed downward in the height direction, and the elastic return force generated by this elastic deformation state causes the elastic push-up piece to continuously push the electronic control component upward in the height direction, and the mounting side portion is maintained in a state pressing the side wall upper end side engaging portion.

[0007] In the above mounting structure, instead of mounting a large bracket that sandwiches the opposing sides of the ECU as in the conventional case, a small bracket can be easily mounted to one side of the ECU. Specifically, the lower side locking portion of the electronic control component is locked to the bottom wall locking portion of the bracket, and the mounting side portion of the case is pushed under the side wall upper end locking portion of the bracket with the locking position as a fulcrum, thereby mounting the bracket to the side portion (mounting side portion) of the electronic control component. When the side portion of the electronic control component is pushed under the side wall upper end locking portion of the bracket, the upper side of the side wall portion of the bracket is bent outward in the opposite direction to the bottom wall extension direction, but the bending is instantaneous, and there is no need to apply a continuous force to mount the electronic control component. In addition, the electronic control components attached to the bracket will not easily fall off the bracket, since the bottom wall engagement portion of the bracket prevents the electronic control components from falling out in the direction in which the bracket extends from the bottom wall, and the side wall upper end engagement portion of the bracket prevents the electronic control components from falling out in the height direction (upward) of the bracket.

[0008] Furthermore, in the above mounting structure, when the electronic control component and the bracket are mounted, the bracket holds the electronic control component in a sandwiched state (a sandwiched state) in two directions (the bottom wall extension direction and the height direction). Specifically, in the bracket with the electronic control component mounted, the side wall portion is bent outwardly in the opposite direction to the bottom wall extension direction, and the return force of the bend presses the electronic control component in the bottom wall extension direction. However, in the bottom wall extension direction of the bracket, the lower surface side locking portion is pressed against the bottom wall locking portion of the bracket, preventing the electronic control component from moving. Therefore, the electronic control component is in a sandwiched state between the side wall portion and the bottom wall locking portion of the bracket in the bottom wall extension direction of the bracket. On the other hand, the elastic push-up piece of the bracket is pressed downward, and the return force of the bend pushes the electronic control component upward. However, in the upward direction (height direction) of the bracket, the electronic control component is pressed against the side wall upper end side locking portion of the bracket, preventing the electronic control component from moving. For this reason, the electronic control component is also in a clamped state in the up-down direction (height direction) of the bracket, being sandwiched between the elastic push-up piece of the bracket and the side wall upper end locking portion. Therefore, the electronic control component receives vibrations in two directions, the bottom wall extension direction and the up-down direction (height direction), which are transmitted from the vehicle body side to the bracket, with some of the vibrations being absorbed by the flexure of the side wall part of the bracket and the elastic push-up piece, reducing the impact on the internal electronic control unit.

[0009] In addition, in the above mounting structure, the electronic control component may be raised from the bottom wall of the bracket by the elastic push-up piece when the electronic control component and the bracket are mounted. In this case, the electronic control component does not come into contact with the side wall of the bracket at the lower end of the side wall (the electronic control component does not come into contact with the lower end of the side wall of the bracket). If the electronic control component were to contact the lower end of the side wall of the bracket in the mounted state, the lower end of the side wall is closer to the connection position with the bottom wall, so it is less likely to bend than the upper end, and a larger force is required to bend it. However, in the case of a structure in which the electronic control component is raised from the bottom wall in the mounted state, the electronic control component contacts the side wall not at the lower end but above the lower end, and pushes the side wall outward, so it is more likely to bend and does not require as much force to bend it. This makes it easier to mount the electronic control component and the bracket. And, such an elastic push-up piece that raises the electronic control component also contributes to suppressing vibration of the electronic control component as already described.

[0010] The bending angle of the side wall of the bracket when the electronic control component and the bracket are attached is assumed to be 5 degrees or less, and more preferably 3 degrees or less, relative to the height direction of the unbent side wall. However, this angle should be at least an angle that provides a restoring force in the bent state, and in reality it is a small angle of around 1 degree or less.

[0011] In addition, the up-down direction of an electronic control component is a direction defined for determining the shape (upper surface, lower surface, side surface, etc.) of the electronic control component, and does not have to correspond to the actual up-down direction. For example, the upper surface of the electronic control component does not have to be up and the lower surface down when in use.

[0012] The locking surface of the side wall upper end locking portion that locks the mounting side surface portion in the mounted state is a surface facing downward in the height direction of the side wall upper end locking portion, and can be made to form an acute angle with respect to the height direction when the side wall portion is not deflected (natural state). According to this configuration, the locking surface of the side wall upper end locking portion of the bracket is formed with a downward slope toward the bottom wall extension direction when the side wall portion is not deflected (natural state). Therefore, even if an electronic control component is attached to the bracket and the side wall portion of the bracket is deflected, it is unlikely to have an upward slope toward the bottom wall extension direction. Therefore, the electronic control component is unlikely to fall out upward.

[0013] The electronic control component may have a plurality of sets of the lower surface side locking portion and the mounting side portion corresponding to each other as bracket mounting portions. This allows a plurality of brackets to be mounted by a plurality of bracket mounting portions. For example, since the electronic control component can be assembled to the plate material on the vehicle body side by a plurality of brackets instead of one bracket, the electronic control component can be stably mounted on the vehicle body side. In addition, the bracket can be selected from a plurality of bracket mounting portions and mounted. For example, the mounting position of the bracket to the electronic control component can be changed depending on the size and shape of the electronic control component and the size and shape of the arrangement space on the vehicle body side. There is no longer a need to prepare brackets according to electronic control components having various sizes and shapes, as in the past.

[0014] The side wall portion has a thin plate-shaped side wall main surface portion and a rib-shaped side wall protrusion portion that protrudes from the side wall main surface portion in the bottom wall extension direction, extends in the height direction, and connects at its upper end to the side wall upper end locking portion, and the mounting side portion can function as a movement restricting portion that restricts movement of the electronic control component in the side width direction relative to the bracket by sandwiching the side wall protrusion portion in the side width direction or being sandwiched in the side width direction by a plurality of the side wall protrusion portions in the mounted state. With this configuration, the bracket is clamped and held against the electronic control component in the bottom wall extension direction and in the height direction perpendicular to the bottom wall extension direction, and is not displaced relative to the electronic control component in the bracket width direction perpendicular to the bottom wall extension direction, and stable mounting can be expected.

[0015] The bottom wall portion has a base end portion in the bottom wall extending direction (an end portion on the opposite side in the bottom wall extending direction) that forms a connecting portion that connects to a lower end portion of the side wall portion, and the elastic push-up piece is formed to protrude from the bottom wall main body portion adjacent to the connecting portion on the bottom wall extending direction side, and the connecting portion can be made to have a lower rigidity than the bottom wall main body portion. With this configuration, the bending of the connecting portion can accelerate (facilitate) the tilting of the side wall portion in the opposite direction to the bottom wall extending direction.

[0016] The mounting side surface has a shape that protrudes outward in the partial section of the side surface so as to have a locking upper surface that faces upward below the main upper surface of the electronic control component in the vertical direction, and when the mounting side surface is pushed under the side wall upper end locking portion during the rotation mounting operation, the locking upper surface can be locked with the side wall upper end locking portion. According to the above configuration, the electronic control component has a locking upper surface at a position lower than the main upper surface, so that the side wall upper end locking portion of the bracket can be locked to this. In other words, even if the electronic control component is thick in the vertical direction, the bracket can be mounted. [Brief description of the drawings]

[0017] [Figure 1]FIG. 2 is a perspective view showing a mounting structure of an electronic control part and a bracket according to the first embodiment. [Diagram 2] 2 is a cross-sectional view showing a state in which the bracket is attached to the vehicle body side, taken along the central cross-section of FIG. 1. [Diagram 3] 2 is a perspective view of the electronic control component of FIG. 1 as viewed from a different direction. [Figure 4] FIG. 2 is a perspective view of a first bracket of FIG. 1; [Diagram 5] FIG. 5 is a plan view of the first bracket of FIG. 4 . [Figure 6] FIG. 5 is a central cross-sectional view of the first bracket of FIG. 4 . [Figure 7] FIG. 2 is a perspective view of a second bracket of FIG. 1; [Figure 8] FIG. 8 is a plan view of the second bracket of FIG. 7 . [Figure 9] FIG. 8 is a central cross-sectional view of the second bracket of FIG. 7 . [Figure 10] 2 is a central cross-sectional view showing a method of attaching a first bracket to the electronic control component in FIG. 1. [Figure 11] 2 is a central cross-sectional view showing a method of attaching a second bracket to the electronic control component in FIG. 1. [Figure 12] FIG. 2 is a perspective view showing a modified example of the mounting structure in FIG. [Figure 13] 2 is a perspective view showing a mounting structure in which the first and second brackets in FIG. 1 are mounted to an electronic control component different from that in FIG. 1 . [Figure 14] FIG. 14 is a perspective view of the electronic control components of FIG. 13 . [Figure 15] 2 is an exploded perspective view of a mounting structure in which modified examples of the first and second brackets in FIG. 1 are mounted on the electronic control component in FIG. 1. [Figure 16] 16 is an enlarged cross-sectional view showing a central cross section of the upper end of the side wall portion of FIG. 15 . [Figure 17] FIG. 11 is a perspective view showing a mounting structure of an electronic control part and a bracket according to a second embodiment. [Figure 18] 18 is a cross-sectional view showing a state in which the bracket is attached to the vehicle body side, taken along the central cross-section of FIG. 17. [Figure 19] 18 is a perspective view of the electronic control component in FIG. 17 as viewed from a different direction. [Figure 20]FIG. 18 is a perspective view of the first bracket of FIG. 17 . [Figure 21] FIG. 21 is a plan view of the first bracket of FIG. 20 . [Figure 22] FIG. 21 is a central cross-sectional view of the first bracket of FIG. 20 . [Figure 23] FIG. 18 is a perspective view of the second bracket of FIG. 17 . [Figure 24] FIG. 24 is a plan view of the second bracket of FIG. 23 . [Diagram 25] FIG. 24 is a central cross-sectional view of the second bracket of FIG. 23 . [Figure 26] FIG. 19 is a partially enlarged cross-sectional view of FIG. [Figure 27] 18. FIG. 19 is a cross-sectional view showing the periphery of the mounting side portion in the mounting structure of FIG. 17, taken at the height of the HH cross section of FIG. [Figure 28] 18 is a perspective view showing a mounting structure in which the first and second brackets in FIG. 17 are mounted to an electronic control part different from that in FIG. 17. [Figure 29] 29 is a cross-sectional view showing a state in which the bracket is attached to the vehicle body side, taken along the central cross-section of FIG. 28. [Diagram 30] 29 is a perspective view of the electronic control component in FIG. 28 as viewed from a different direction. [Diagram 31] 29 is a central cross-sectional view showing a method of attaching the first bracket of FIG. 17 to the electronic control component of FIG. 28. [Diagram 32] FIG. 32 is a central cross-sectional view showing a mounting method different from that shown in FIG. 31. [Diagram 33] FIG. 11 is a central cross-sectional view showing a mounting structure which is a modified example of the first and second embodiments. [Diagram 34] FIG. 15 is a partial perspective view showing a first modified example of the electronic control component shown in FIGS. 13 and 14. [Diagram 35] FIG. 15 is a partial perspective view showing a second modified example of the electronic control component shown in FIGS. 13 and 14. [Diagram 36] FIG. 15 is a partial perspective view showing a third modified example of the electronic control component shown in FIGS. 13 and 14. [Figure 37] FIG. 15 is a partial perspective view showing a fourth modified example of the electronic control component shown in FIGS. 13 and 14. [Figure 38] FIG. 15 is a partial perspective view showing a fifth modified example of the electronic control component shown in FIGS. 13 and 14. [Figure 39] FIG. 15 is a partial perspective view showing a sixth modified example of the electronic control component shown in FIGS. 13 and 14. [Diagram 40] 18 is a central cross-sectional view showing a modified example of the mounting structure of FIG. 17. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0018] A first embodiment of the present invention will now be described with reference to the drawings.

[0019] In the first embodiment, as shown in Fig. 1, an electronic control component 10 (ECU) and brackets 1A and 1B are attached to form a mounting structure 100. The electronic control component 10 to which the brackets 1A and 1B are attached is assembled to the vehicle body (here, a vehicle body panel 200) as shown in Fig. 2, for example. Note that among the drawings, those showing a cross section of the electronic control component 10 are shown in a simplified manner with detailed cross-sectional shapes omitted.

[0020] The electronic control component 10 is configured such that the case 11 contains an electronic control unit (not shown). Various circuit boards as the electronic control unit are arranged inside the case 11. As shown in Figs. 1 and 3, the case 11 of the electronic control component 10 has an upper surface 11a (upper surface of the case), a lower surface 11b (lower surface of the case), and side surfaces 11c (side surfaces of the case, outer peripheral surfaces of the case) extending in the vertical direction Z10 so as to connect the outer edge sides of the upper surface 11a and the lower surface 11b. The case 11 here is box-shaped and has an upper surface 11a, a lower surface 11b, and side surfaces 11c (outer peripheral side surfaces) surrounding the outer peripheral side between the upper and lower surfaces 11a and 11b. More specifically, the side surfaces 11c here are four side surfaces rising in the vertical direction Z10 corresponding to the four sides of the upper surface 11a and the lower surface 11b which are rectangular (square in this case), and the case 11 is rectangular parallelepiped-shaped. In this embodiment, an opening is formed in one of the four side surfaces 11c, and an external connection section 14 (connector) of the electronic control section contained therein is exposed from the opening.

[0021] As shown in FIG. 3, the side surface portion including a section RC in the side width direction R10 perpendicular to the vertical direction Z10 of the side surface 11c of the case 11 forms the mounting side surface portion 12, and the lower surface 11b is formed with a lower surface side locking portion 13 corresponding to the mounting side surface portion 12. Here, a plurality of mounting protrusions (protrusions) protruding outward in the section RC are formed in the entire four side surfaces 11c (entire outer peripheral side surfaces) corresponding to the four sides of the upper surface 11a and the lower surface 11b, and they form the mounting side surface portion 12. Specifically, the widthwise centers of a pair of side surfaces 11c, 11c that are opposed to each other among the side surfaces 11c corresponding to the four sides each form the mounting side surface portion 12. Each mounting side surface portion 12 protrudes outward in a rectangular parallelepiped shape so as to be flush with the upper and lower surfaces 11a, 11b.

[0022] As shown in Fig. 3, the lower surface 11b of the case 11 has lower surface locking portions 13 corresponding to the respective mounting side portions 12. Each lower surface locking portion 13 is convex or concave with respect to the lower surface 11b, and has a locking surface 13k (see Figs. 10 and 11) facing the opposite side to the corresponding mounting side portion 12. Here, the lower surface locking portion 13 corresponds to the mounting side portion 12 located on the side closer to itself, and is convex and protrudes downward from the lower surface 11b at a position on the lower surface 11b that is inside the corresponding mounting side portion 12. Specifically, the lower surface locking portion 13 has a surface facing the opposite side to the corresponding mounting side portion 12 formed as a locking surface 13k that is perpendicular to the lower surface 11b.

[0023] In this way, the electronic control component 10 (case 11) has multiple pairs of corresponding underside engaging portions 13 and mounting side portions 12 as bracket mounting portions 15, and either of the brackets 1A and 1B can be attached to these pairs.

[0024] Brackets 1A and 1B are components for an electronic control component 10 (ECU) for mounting the electronic control component 10 (ECU) to the vehicle body (for example, panel member 200 in FIG. 2), and include a first bracket 1A (see FIG. 4) and a second bracket 1B (see FIG. 7) in this embodiment. As shown in FIG. 1, brackets 1A and 1B are attached to a resin case 11 of the electronic control component 10 (ECU). As shown in FIGS. 4 to 9, brackets 1A and 1B are resin injection molded bodies integrally having an L-shaped bracket main body 5 and engaging and fixing portions 4 (4A, 4B) for mounting to the vehicle body.

[0025] The bracket body 5 basically has the same shape for the two types of brackets 1A and 1B, and is L-shaped with a side wall portion 2 extending in a height direction Z1 and a bottom wall portion 3 extending from the lower end of the height direction Z1 to a predetermined bottom wall extension direction X1 perpendicular to the height direction Z1.

[0026] 4 to 9, the side wall 2 is a portion that faces a side surface 11c (mounting side surface portion 12) of the electronic control component 10 when the electronic control component 10 (ECU) is mounted to the brackets 1A and 1B (see FIG. 2). As shown in FIGS. 6 and 9, the side wall 2 has a side wall main body portion 2B extending in the height direction Z1 and a side wall upper end locking portion 2A protruding from its upper end in the bottom wall extending direction X1, and basically has the same shape for the two types of brackets 1A and 1B.

[0027] 4 and 7, the sidewall main body 2B has a flat thin-plate-like sidewall main surface 2B1 extending in the height direction Z1 (sidewall height direction), and rib-like sidewall protrusions 2B2, 2B2 protruding forward and backward from the sidewall main surface 2B1 in the bottom wall extending direction X1 (sidewall thickness direction) and extending in the height direction Z1 (sidewall height direction). The sidewall protrusions 2B2, 2B2 here are sidewall side surface portions (hereinafter also referred to as sidewall side surface portions 2B2, 2B2) that form side surfaces on both sides of the width direction Y1 (sidewall width direction, bracket width direction) of the sidewall main surface 2B1. Here, the side wall portion 2 is box-shaped with a thin plate-like side wall main surface portion 2B1, side wall side portions 2B2, 2B2 at both ends in the width direction Y1, and a side wall upper end engagement portion 2A at the upper side in the height direction Z1, and the mounting side portion 12 of the electronic control component 10 can be accommodated (fitted) therein.

[0028] The side wall upper end side locking portion 2A is formed to protrude from the upper side of the side wall main surface portion 2B1 in the height direction Z1 toward the bottom wall extension direction X1, and has a surface 2a facing downward in the height direction Z1 as a locking surface that locks with the upper surface 11a of the case 11 when the electronic control component 10 (ECU) and the brackets 1A and 1B are attached. The locking surface 2a here is a surface perpendicular to the height direction Z1 when the side wall portion 2 is not bent (in a natural state). The side wall upper end side locking portion 2A has a shape that tapers toward the bottom wall extension direction X1, and has an upper surface 2b (locking portion upper surface) facing upward as a slope that descends toward the bottom wall extension direction X1. The side wall upper end side locking portion 2A here is divided into left and right at the center in the width direction Y1, and each divided part is connected to the upper end of the side wall side surface portion 2B2 on the corresponding side.

[0029] As shown in Figures 4 to 9, the bottom wall portion 3 is a portion that faces the lower surface 11b of the electronic control component 10 (ECU) when the electronic control component 10 and the brackets 1A, 1B are attached (see Figure 2). As shown in Figures 6 and 9, the bottom wall portion 3 has a bottom wall main body portion 3C extending in the bottom wall extension direction X1, a bottom wall locking portion 3A provided on the tip side thereof, and elastic push-up pieces 3B (3B1, 3B2) extending obliquely upward (diagonally upward in the height direction Z1) from the bottom wall main body portion 3C, and basically has the same shape for the two types of brackets 1A, 1B except for the elastic push-up piece 3B.

[0030] The bottom wall main body portion 3C has a base end portion in the bottom wall extending direction 3X (an end portion on the opposite side to the bottom wall extending direction 3X) as a connecting portion 3X that connects to the lower end portion 2BL of the side wall portion 2. The bottom wall main body portion 3C also has a bottom wall main body portion 3CX adjacent to the connecting portion 3X on the bottom wall extending direction X1 side, and a bottom wall engaging portion 3A is formed on the tip side of the bottom wall extending direction X1 of the bottom wall main body portion 3CX. Also, an elastic push-up piece 3B is formed to protrude from the bottom wall main body portion 3CX.

[0031] The bottom wall main body portion 3C has a bottom wall bottom surface portion 3C1 extending like a flat thin plate in the bottom wall extension direction X1, and a rib-shaped bottom wall protrusion portion 3C2 protruding upward in the height direction Z1 from the bottom wall bottom surface portion 3C1 and extending in the bottom wall extension direction X1 or the width direction Y1 (bottom wall width direction, bracket width direction: same direction as the side wall width direction).

[0032] The bottom wall main body part 3CX has a bottom wall bottom surface part 3C1 formed in the entire area except for a hole 3C0 described later, and a bottom wall protrusion part 3C2 is formed on the bottom wall bottom surface part 3C1. The bottom wall main body part 3CX is a part where the elastic push-up piece 3B is formed to protrude, and has a rib structure (bottom wall protrusion part 3C2) that is difficult to bend in the height direction Z1 so that the push-up of the elastic push-up piece 3B is stable (it is not defeated by the reaction force (elastic return force) at the time of elastic deformation of the elastic push-up piece 3B) when the electronic control component 10 is attached. On the other hand, the connection part 3X is composed of three bottom wall protrusion parts 3C2 extending in the bottom wall extension direction X1, and a through hole 3X0 is formed between them to penetrate in the height direction Z1. Of the three bottom wall protrusion parts 3C2, the ones on both sides in the width direction Y1 are bottom wall side surface connection parts 3X2, 3X2, and the one in the center of the width direction Y1 is the bottom wall center connection part 3X3. The bottom wall main body portion 3CX and the connecting portion 3X have bottom wall protrusions 3C2 extending from both ends in the width direction Y1 in the bottom wall extending direction X1 and connected to the side wall protrusions 2B2, 2B2 of the side wall portion 2.

[0033] The connecting portion 3X has a lower rigidity than the adjacent bottom wall main body portion 3CX on the bottom wall extending direction X1 side, and is more flexible in the height direction Z1 than the bottom wall main body portion 3CX. The connecting portion 3X here has a lower rigidity than the bottom wall main body portion 3CX by having a low-rigidity shape in which the bottom wall bottom surface portion 3C1 is not formed.

[0034] The bottom wall 3 also has legs 3D that protrude downward in the height direction Z1. The legs 3D are portions that come into contact with the surface of the panel when the brackets 1A, 1B are attached to the vehicle body panel 200 on the vehicle body side (see FIG. 2), and are provided in the form of ribs on both the front and rear sides in the bottom wall extending direction X1, thereby increasing the rigidity of those portions.

[0035] The bottom wall engaging portion 3A is convex or concave, protruding upward in the height direction Z1 or concave downward in the height direction Z1, on the tip side of the bottom wall extending direction X1 of the bottom wall main body portion 3C. The vertical surface 3a of the bottom wall engaging portion 3A rising in the height direction Z1 facing the side wall portion 2 becomes an engaging vertical surface that engages with the engaging surface 13k of the lower surface side engaging portion 13.

[0036] The elastic push-up piece 3B is an elastic piece (stabilizer) located between the side wall upper end side engaging part 2A and the bottom wall engaging part 3A in the bottom wall extending direction X1 and extending obliquely upward in the height direction Z1. However, the forming position and shape of the elastic push-up piece 3B here differ between the brackets 1A and 1B.

[0037] The elastic push-up piece 3B (hereinafter referred to as the elastic push-up piece 3B1) of the bracket 1A extends obliquely upward in the height direction Z1 so as to approach the side wall portion 2, as shown in Figs. 4 to 6. In the bracket 1A, a hole 3C0 penetrating or recessed downward in the height direction Z1 is formed in the center or side wall portion 2 side in the bottom wall extension direction X1 of the bottom wall main body portion 3C (here, the bottom wall main body main portion 3CX), and the elastic push-up piece 3B1 extends obliquely upward in the height direction Z1 so as to approach the side wall portion 2 from the inner wall surface on the bottom wall extension direction X1 side of the hole 3C0. As a result, when the tip side of the elastic push-up piece 3B1 is pushed downward from above in the height direction Z1 and bent, it can enter the hole 3C0, and does not interfere with the bottom wall main body portion 3C due to bending. The elastic push-up piece 3B1 here is in the form of a plate having a certain width.

[0038] The elastic push-up pieces 3B (hereinafter referred to as elastic push-up pieces 3B2 and 3B3) of the bracket 1B extend obliquely upward along the width direction Y1 from both outer sides of the bottom wall main body portion 3C (here, the bottom wall main body main portion 3CX) in the width direction Y1, as shown in Figures 7 to 9. In the bracket 1B, bottom wall protrusions 3C2 and 3C2 (bottom wall side surface portions) that form side surfaces on the outer side of the width direction Y1 (bottom wall width direction) are formed at the center or side wall portion 2 side (here, the center) in the bottom wall extending direction X1 of the bottom wall main body portion 3C, and the elastic push-up pieces 3B (hereinafter referred to as elastic push-up pieces 3B2 and 3B3) of the bracket 1B each extend obliquely upward and outward in the height direction Z1 from the outer wall surfaces (outer wall surfaces) in the width direction Y1 of the bottom wall protrusions 3C2 and 3C2 (bottom wall side surface portions) on both outer sides. As a result, when the tip of each of the elastic push-up pieces 3B2 and 3B3 is pushed downward from above in the height direction Z1 and bent, the outside of the bottom wall main body 3C in the width direction Y1 can sink downward, and the bending does not cause interference with the bottom wall main body 3C. The elastic push-up pieces 3B1 and 3B2 here are formed so that they have different push-up repulsive forces (elastic return forces) when pushed down to the same height. Specifically, the elastic push-up pieces 3B1 and 3B2 are formed in the shape of flat plates with different widths.

[0039] The engaging and fixing parts 4 (4A, 4B) are formed on the opposite side of the bottom wall extending direction X1 from the lower end part 2BL of the side wall part 2 (opposite side from the bottom wall part 3: outside), and the engaging and fixing parts 4 (4A, 4B) here are inserted into corresponding through holes 201, 202 formed in the vehicle body panel 200, so as to engage with and be assembled to the vehicle body panel 200 (see FIG. 2). As a result, the electronic control part 10 can be assembled to the vehicle body panel 200 by the brackets 1A, 1B having the respective engaging and fixing parts 4 (4A, 4B). The engaging and fixing parts 4 may have the same shape in each of the brackets 1A, 1B, but here, the engaging and fixing parts 4A, 4B have different shapes, and the two work together to assemble the electronic control part 10 to the vehicle body panel 200. The forming positions and shapes of the engaging and fixing parts 4 (4A, 4B) may be different from those in this embodiment (see FIG. 6).

[0040] The engaging and fixing portion 4 of the bracket 1A (hereinafter referred to as the engaging and fixing portion 4A) extends slightly downward in the height direction Z1 from the lower end portion 2BL of the side wall portion 2, and then extends in the opposite direction to the bottom wall extension direction X1, and is formed as a hook portion extending upward in the height direction Z1 at its end.

[0041] The engaging and fixing portion 4 of the bracket 1B (hereinafter referred to as the engaging and fixing portion 4B) has a base portion 4B1 extending from the lower end portion 2BL of the side wall portion 2 to the opposite side to the bottom wall extending direction X1, and an insertion engaging portion 4B2 protruding downward in the height direction Z1 from the base portion 4B1 (see FIG. 9). The insertion engaging portion 4B2 has a support pillar protruding downward in the height direction Z1 from the base portion 4B1, and an elastic locking piece extending upward in the height direction from the tip of the support pillar.

[0042] A method for mounting the electronic control component 10 to the brackets 1A and 1B will now be described.

[0043] In addition, since the method of mounting the bracket 1A to the electronic control component 10 and the method of mounting the bracket 1B to the electronic control component 10 are common to both, they will be described at the same time using FIGS.

[0044] First, as shown in Figures 10(a) and 11(a), with the bottom wall engaging portion 3A of the brackets 1A, 1B engaged with the underside engaging portion 13 of the electronic control component 10 toward the bottom wall extension direction X1, a rotational mounting operation is performed in which the mounting side portion 12 of the electronic control component 10 is pushed under the side wall upper end engaging portion 2A of the brackets 1A, 1B.

[0045] Specifically, as shown in Fig. 10(a) and Fig. 11(a), the lower surface side locking portion 13 of the electronic control component 10 is locked to the bottom wall locking portion 3A of the brackets 1A and 1B in a hooked state. Then, while maintaining the hooked state, the electronic control component 10 is rotated around the hooking position (locking position) as a fulcrum (center of rotation) to push the mounting side surface portion 12 side of the case 11 under the side wall upper end side locking portion 2A. This pushing causes the mounting side surface portion 12 (side surface 11c) of the case 11 to push the side wall portion 2 in the outward direction X2 opposite to the bottom wall extension direction X1. As a result, as shown in Fig. 10(b) and Fig. 11(b), the upper end side of the side wall portion 2 is bent in the outward direction X2 opposite to the bottom wall extension direction X1 with the lower end portion 2BL connected to the bottom wall portion 3 as a fulcrum (starting point). By the side wall portion 2 bending (tilting) outward X2, a width is secured that allows the mounting side portion 12 side of the case 11 in the electronic control component 10 to fit under the upper end side engagement portion 2A of the side wall of the brackets 1A, 1B, and after fitting in, the bending side wall portion 2 returns to the bottom wall extension direction X1 (inward) due to its restoring force.

[0046] 10(c) and 11(c), in the bottom wall extending direction X1, the lower surface side locking portion 13 of the brackets 1A and 1B is locked to the bottom wall locking portion 3A, preventing the electronic control component 10 from slipping out in the bottom wall extending direction X1, and in the upward direction Z1, the mounting side portion 12 is locked to the side wall upper end side locking portion 2A, preventing the electronic control component 10 from slipping out in the upward direction. This brings the electronic control component 10 into a mounted state (mounting structure 100) attached to the brackets 1A and 1B.

[0047] In this mounted state, the electronic control component 10 maintains the side wall portions 2 of the brackets 1A, 1B in a bent state (bent outward) in the outward direction X2 opposite to the bottom wall extension direction X1, and maintains the elastic push-up pieces 3B (3B1, 3B2, 3B3) of the brackets 1A, 1B in a pressed-down state (elastically bent downward) in the height direction Z1.

[0048] That is, the side wall portion 2 (see Figures 10(b) and 11(b)), which is bent outwardly X2 during the pivot mounting operation, returns (returns) to the bottom wall extension direction X1 (inwardly) due to the restoring force generated by the bending when the unit is in the mounted state, as shown in Figures 10(c) and 11(c). The return does not return to the original unbent state (natural state), but rather to a state in which a slight bending (bending in the outward direction X2) remains (not a complete elastic return from the maximum tilt angle during the above-mentioned pivot mounting operation (see Figs. 10(b) and 11(b)), but rather to an elastically deformed state in which a slight tilt angle remains (see Figs. 10(c) and 11(c)), and the side wall portion 2 is in a slightly tilted state with respect to the height direction Z1. Note that the tilt angle (inclination angle) at this time is assumed to be 5 degrees or less, more preferably 3 degrees or less. In reality, it is a slight angle of about 1 degree or less. Similarly, the elastic push-up pieces 3B (3B1, 3B2, 3B3) bent downward in the height direction Z1 during the pivot mounting operation do not return to their original unbent state (natural state) when in the mounted state, but are in a pushed-down state (elastically deformed state) in which a certain degree of bending (bending downward) remains.

[0049] Therefore, in the mounting state shown in Figures 10(c) and 11(c), the side wall portion 2 continuously presses the electronic control component 10 in the bottom wall extension direction X1 due to the return force Fx (elastic return force) of the side wall portion 2 generated by the slight remaining deflection, and the lower surface side engagement portion 13 is held in a state pressing against the bottom wall engagement portion 3A, and the elastic push-up piece 3B (3B1, 3B2, 3B3) continuously pushes up the electronic control component 10 upward in the height direction Z1 due to the return force Fz (elastic return force) of the elastic push-up piece 3B (3B1, 3B2, 3B3) generated by the pressed-down state, causing the elastic push-up piece 3B to float up from the bottom wall portion 3 while the mounting side portion 12 is held in a state pressing against the side wall upper end side engagement portion 2A.

[0050] As a result, the electronic control component 10 (case 11) is maintained in a clamped state between the side wall portions 2 of the brackets 1A, 1B and the bottom wall engagement portions 3A in the bottom wall extension direction X1, and in the height direction Z1, it is maintained in a clamped state in which it is raised above the bottom wall portion 3 and sandwiched between the elastic push-up pieces 3B of the brackets 1A, 1B and the side wall upper end engagement portions 2A.

[0051] In addition, in this mounting state, as shown in FIG. 10(c) and FIG. 11(c), the electronic control component 10 rises from the bottom wall 3 of the brackets 1A and 1B to form a space S between the bottom wall 3 and the electronic control component 10, and this space is maintained. The configuration in which the space S is formed allows for easy rotational mounting. The space S is also formed on the bottom wall extension direction X1 side of the engagement position between the bottom wall engagement portion 3A of the brackets 1A and 1B and the bottom side engagement portion 13 of the electronic control component 10 (space SA). Due to the presence of the space SA, vibration (swing) of the electronic control component 10 mounted on the brackets 1A and 1B in the rotation direction VR starting from the engagement position can be absorbed by elastic deformation of the brackets 1A and 1B. The space S is also formed on the lower side of the bottom side engagement portion 13 of the electronic control component 10 mounted on the brackets 1A and 1B (space SC). By ensuring the presence of this space SC, vibrations in the up-down direction Z10 of the electronic control component 10 attached to the brackets 1A, 1B can be absorbed by the elastic deformation of the elastic push-up pieces 3B.

[0052] In this manner, the electronic control component 10 of this embodiment is pressed into the inside of the L-shaped bracket body 5 and is attached to the brackets 1A and 1B by being clamped and held in two directions, the bottom wall extension direction X1 and the height direction Z1 (attachment structure 100). As a result, in the assembled state on the vehicle body side shown in FIG. 2, the brackets 1A and 1B can absorb vibrations transmitted from the outside and suppress the transmission of vibrations to the electronic control component 10.

[0053] In this embodiment, the above-mentioned pivot mounting operation causes the connection portion 3X of the bottom wall 3 to bend downward in the height direction Z1 (side wall 2 side) in the opposite direction of the bottom wall extension direction X1, as with the side wall 2, and bend downward. This bending accelerates the inclination of the side wall 2 outward X2. In addition, in the mounting state after the above-mentioned pivot mounting operation, the bending of the connection portion 3X remains slightly, which contributes to the return force Fx. However, in the brackets 1A and 1B, it is not the case that the side wall 2 and the connection portion 3X do not bend at all, and the other portions also bend slightly and contribute to the return force Fx.

[0054] In this embodiment, during the pivotal mounting operation, the mounting side portion 12 of the case 11 of the electronic control component 10 is accommodated (fitted) into the box-shaped side wall main body portion 2B of the brackets 1A, 1B (see Figs. 10 and 11(a) and (b)), and in the mounted state, the mounting side portion 12 is accommodated (fitted) into the side wall main body portion 2B (see Figs. 10 and 11(c)). Specifically, the mounting side portion 12 fits between the side wall side portions 2B2, 2B2 (side wall protrusions) during the pivotal mounting operation, and in the mounted state, the mounting side portion 12 fits completely between the side wall side portions 2B2, 2B2 (side wall protrusions). At these times, the mounting side portion 12 is sandwiched between the side wall side portions 2B2, 2B2 in the side width direction R10, and functions as a movement restricting portion that restricts movement of the electronic control component 10 in the side width direction R10 relative to the brackets 1A, 1B, and as a positioning portion in the side width direction R10.

[0055] In this embodiment, the first elastic push-up piece 3B1, the second elastic push-up piece 3B2, and the third elastic push-up piece 3B3 provided in the pair of brackets 1A and 1B are formed so that when they are pressed down to the same height in contact with the lower surface 11b of the electronic control component 10 in the attached state, the push-up repulsive forces Fz that push up the lower surface 11b are different from each other. As a result, when the brackets 1A and 1B are subjected to vibrations from the outside, the vibrations generated in the elastic push-up pieces 3B1, 3B2, and 3B3 are not uniform. Therefore, some of the vibrations act to be canceled out, and the vibrations transmitted to the electronic control component 10 can be reduced.

[0056] A method of assembling the brackets 1A, 1B to which the electronic control component 10 is attached to the vehicle body will be described below. Here, the electronic control component 10 is attached to a vehicle body panel 200 (see FIG. 2) by the two brackets 1A, 1B.

[0057] First, the engaging and fixing portion 4A of the bracket 1A having a hook shape is inserted into the first mounting hole 201 of the vehicle body panel 200. The inserted engaging and fixing portion 4A is in a hooked state with its tip engaged with the inner surface of the vehicle body panel 200 in the insertion direction. Next, the engaging and fixing portion 4B of the bracket 1B forming the insertion and fixing portion is inserted into the second mounting hole 202 of the vehicle body panel 200. The inserted engaging and fixing portion 4B passes through the second mounting hole 202 while bending the elastic locking piece, and the elastic locking piece elastically returns to its original position at the end of the insertion, engaging with the inner surface of the vehicle body panel 200 in the insertion direction and preventing it from coming off. As a result, the brackets 1A and 1B are mounted to the vehicle body panel 200. At this time, the legs 3D of both brackets 1A and 1B are grounded on the surface of the vehicle body panel 200 (see FIG. 2).

[0058] Brackets 1A and 1B can also be used to attach other electronic control components having different shapes or sizes from electronic control component 10, as long as they have bracket attachment portions 15 (12, 13) similar to those described above.

[0059] 12 shows a mounting structure 101 in which brackets 1A, 1A are attached to an electronic control component 10M, which is different from the electronic control component 10. The electronic control component 10M basically has the same configuration as the electronic control component 10, but differs from the electronic control component 10 in that the electronic control component 10M has three or more bracket mounting portions 15 (12, 13).

[0060] Specifically, electronic control component 10M has mounting side portions 12 formed on three of four side surfaces 11c on the outer periphery of the case, and bottom surface locking portions 13 (not shown) corresponding to the mounting side portions 12 are provided on bottom surface 11b. Brackets 1A, 1A are attached to bracket mounting portions 15 (12, 13) including mounting side portions 12 on adjacent side surfaces 11c, 11c, not to opposing side surfaces 11c, 11c. There are bracket mounting portions 15 to which neither bracket 1A nor 1B is attached.

[0061] In the case of electronic control component 10M in Fig. 12, brackets 1A and 1B can be attached by selecting from three positions of bracket attachment parts 15 (12, 13). Therefore, brackets 1A and 1B can be attached by changing the selected position of bracket attachment part 15 depending on the structure of the vehicle body side (e.g., vehicle body panel 200), for example. For example, mounting structure 101 in Fig. 12 is suitable for attachment to a corner part of the vehicle body side.

[0062] FIG. 13 shows a mounting structure 102 in which brackets 1A and 1B are attached to an electronic control component 10S, which is different from the electronic control component 10. The electronic control component 10S basically has the same configuration as the electronic control component 10, but the front-rear and left-right widths of the case 11 are small, and the up-down width is large. In addition, mounting side sections 12 are formed on two opposing side sections 11c of the four outer peripheral side sections 11c, and a corresponding lower surface side locking section 13 (not shown) is provided on the lower surface 11b. As shown in FIG. 14, the two side sections 11c have mounting recesses 12U recessed inward and mounting protrusions 12T protruding outward in a rectangular parallelepiped shape from the bottom lower side of the mounting recesses 12U, which form the mounting side sections 12 of the electronic control component 10. The brackets 1A and 1B are attached to the bracket mounting sections 15 (12, 13) including the mounting side sections 12.

[0063] In the case of the mounting structure 102 of Fig. 13, the side wall side surface portions 2B2, 2B2 of the brackets 1A, 1B enter into the gap between the vertical surface 12y of the mounting recess 12U and the mounting protrusion 12T. Therefore, the mounting recess 12U and the mounting protrusion 12T sandwich the side wall protrusions 2B2, 2B2 in the side width direction R10. This restricts movement of the electronic control component 10S relative to the brackets 1A, 1B in the side width direction R10, so the mounting side surface portions 12 (12U, 12T) here function as movement restricting portions.

[0064] 13, the upper surface 11a of the electronic control component 10S (case 11) includes an upper surface 11a0 and an upper surface 12k. The mounting side portion 12 of the electronic control component 10S (case 11) has a shape (mounting protrusion 12T) that protrudes outward in a partial section RC of the side surface 11c of the electronic control component 10S (case 11) so as to have an upper surface 12k (locking upper surface: see FIG. 14) facing upward below the main upper surface 11a0 in the vertical direction Z10, and in the mounting state (see FIG. 13) when pushed under the side wall upper end side locking portion 2A in the rotation mounting operation, the upper surface 12k of the mounting side portion 12 locks with the lower surface 2a of the side wall upper end side locking portion 2A and presses the lower surface 2a upward.

[0065] In this way, electronic control components come in various shapes and sizes, but brackets 1A and 1B, which have a common bracket body 5 (mounting portion), can be mounted in the same mounting state (mounting structure) using the same mounting method (rotating mounting operation). Conventional brackets required dedicated brackets to be prepared for electronic control components of different shapes and sizes, but this embodiment eliminates the need for such work.

[0066] Although the first embodiment of the present invention has been described above, this is merely an example, and the present invention is not limited to this. Various modifications, such as additions and omissions, can be made based on the knowledge of those skilled in the art, provided that they do not deviate from the spirit of the claims.

[0067] The mounting side surface portion 12 in the first embodiment is formed as a rectangular protrusion, but does not need to have a visually obvious shape on the side surface 11c, such as a protrusion or a recess. For example, the mounting side surface portion 12 may be a side surface portion including a partial section of the side surface 11c formed as a flat surface extending linearly in the side surface width direction. In this case, the mounting side surface portion 12 can be set in any section in the width direction (side surface width direction) of the side surface 11c that forms a flat surface.

[0068] In the first embodiment, the deflection of the brackets 1A, 1B during the pivot mounting operation and in the mounted state may occur in any section from the side wall 2 to the bottom wall 3, so long as the side wall 2 is inclined relative to the bottom wall 3. Desirably, the deflection occurs largely at the connection 3X of the bottom wall 3, which is an intermediate portion between the side wall 2 and the bottom wall 3, and at the lower end side (lower end 2BL) of the side wall 2, if the rigidity of these parts is lower than the other parts, the side wall 2 and the bottom wall 3 will elastically deform so that their tips spread apart from each other, with the low rigidity part as the starting point (main), and the locking state at the tip side will be stabilized. For example, in the first embodiment, the rigidity of the connection 3X of the bottom wall 3 may be reduced, and the connection 3X may be configured to mainly undergo elastic deformation.

[0069] In the side wall portion 2 of the first embodiment, the lower end portion 2BL may have lower rigidity than the side wall main body portion 2BZ, which is the remaining portion on the upper side excluding the lower end portion 2BL. In Fig. 15, the lower side of the side wall main surface portion 2B1 of the bracket 1A', 1B' of the above embodiment is cut out (hole portion 2B0). This makes it easier to tilt the side wall portion 2 by bending more greatly.

[0070] The side wall upper end locking portion 2A in the first embodiment has a surface 2a facing downward in the height direction Z1 as a locking surface (locking lower surface), and the surface 2a may be formed as a surface 2a' that forms an acute angle with the height direction Z1 when the side wall portion 2 is not bent (in its natural state) as shown in Fig. 16. This makes it difficult for the electronic control component 10 to come off upward even if the side wall portion 2 is bent (inclined) outwardly X2 when the electronic control component 10 is attached to the brackets 1A', 1B'.

[0071] A second embodiment of the present invention will now be described with reference to the drawings.

[0072] In addition, the same reference numerals are used to denote the same parts as in the first embodiment, and the description thereof will be omitted.

[0073] In the second embodiment, as shown in Fig. 17, an attachment structure 103 is formed by attaching an electronic control component 10N (ECU) to brackets 1C and 1D. As in the first embodiment, the electronic control component 10N is attached to the vehicle body (here, vehicle body panel 200) as shown in Fig. 18, for example.

[0074] As shown in Figs. 17 to 19, the electronic control component 10N is configured in a manner similar to the first embodiment, in which a case 11 having upper and lower surfaces 11a and 11b and four outer side surfaces 11c encloses an electronic control unit (not shown). A side surface portion including a section RC of the side surface 11c of the case 11 forms an attachment side surface portion 12, and a corresponding lower surface locking portion 13 (see Figs. 17 and 18) is formed on the lower surface 11b. Each lower surface locking portion 13 is formed in the same manner as the first embodiment. The corresponding attachment side surface portion 12 and the lower surface locking portion 13 form a bracket attachment portion 15. A connector 14 is provided on one of the four side surfaces 11c.

[0075] The mounting side portion 12 is provided as a dedicated mounting portion for another bracket (not shown) different from the brackets 1C and 1D, and is formed to protrude outward from the side surface 11c. As shown in Fig. 19, the mounting side portion 12 here has elastic engagement pieces 12J that rise outward to face each other in the side surface width direction R10 on the side surface 11c, extend toward each other at their ends, and have tips that incline downward to approach the side surface 11c, and an engagement protrusion 12I that protrudes outward from a position with a gap between the tips of the elastic engagement pieces 12J in the side surface width direction R10. The brackets 1C and 1D can be attached to the mounting side portion 12 that is a dedicated mounting portion for the other bracket.

[0076] As shown in Figures 20 to 22 and 23 to 25, brackets 1C and 1D, like brackets 1A and 1B of the first embodiment, are resin injection-molded bodies integrally having an L-shaped bracket main body 5 and an engaging and fixing portion 4 (4A, 4B) for mounting to the vehicle body.

[0077] The bracket body 5 is L-shaped and has a side wall portion 2 extending in a height direction Z1 and a bottom wall portion 3 extending in a bottom wall extending direction X1.

[0078] As shown in FIGS. 20 to 22 and 23 to 25, the side wall 2 has a side wall main body 2B extending in the height direction Z1 and a side wall upper end locking portion 2A protruding at its upper end in the bottom wall extending direction X1.

[0079] The sidewall main body portion 2B has a flat thin plate-like sidewall main surface portion 2B1 extending in the height direction Z1 (sidewall height direction, bracket height direction), and a rib-like sidewall protrusion portion 2B2 protruding from the sidewall main surface portion 2B1 toward the bottom wall extending direction X1 (sidewall thickness direction) and extending in the height direction Z1. The sidewall main surface portion 2B1 has a shape in which its width in the width direction Y1 (sidewall width direction, bracket width direction) increases at the middle part in the height direction Z1, becoming wider toward the upper side (see Figures 20 and 23).

[0080] The side wall upper end locking portion 2A has a locking surface 2a (locking lower surface) facing downward in the height direction Z1. The side wall upper end locking portion 2A is formed in a shape divided into both sides in the width direction Y1 at the upper end of the wide side wall main body portion 2B, and the side wall protrusion portion 2B2 extends downward in the height direction Z1 in a shape connected to the end portions on the inner side between the opposing portions (see Figures 20 and 23).

[0081] As shown in Figures 20 to 22 and Figures 23 to 25, the bottom wall portion 3 has a bottom wall main body portion 3C extending in the bottom wall extension direction X1, a bottom wall engagement portion 3A provided at the tip thereof, and an elastic push-up piece 3B (3B4, 3B5) extending diagonally upward from the bottom wall main body portion 3C.

[0082] The bottom wall main body portion 3C extends in the bottom wall extending direction X1, and its base end forms a connection portion 3X that connects to the lower end portion 2BL of the side wall portion 2, while an adjacent portion adjacent to the connection portion 3X on the bottom wall extending direction X1 side forms a main portion 3CY (bottom wall main body main portion 3CY) of the bottom wall main body portion 3C. The bottom wall main body main portion 3CY is a wide portion 3CY that expands outward on both sides more than the side wall portion 2 in the width direction Y1 (bottom wall width direction, bracket width direction: same direction as the side wall width direction), and elastic push-up pieces 3B (3B4, 3B5) are formed to protrude (see Figures 21 and 24).

[0083] The wide portion 3CY has a thin plate-like bottom wall bottom surface portion 3C1 and bottom wall protrusion portions 3C2 which rise upward in the height direction Z1 from the bottom wall bottom surface portion 3C1 and extend in a lattice pattern in the bottom wall extension direction X1 and the width direction Y1.

[0084] The connection portion 3X has a bottom wall bottom portion 3C1 (bottom wall bottom connection portion 3X1) extending in the opposite direction to the bottom wall extending direction X1 from the center of the bottom wall protrusion portion 3C2 extending in the width direction Y1 at the end portion on the opposite side of the bottom wall extending direction X1 of the wide portion 3CY, and a plurality of (here, three) bottom wall protrusion portions 3C2 (3X2, 3X3, 3X2) extending in the opposite direction to the bottom wall extending direction X1, rising upward in the height direction Z1 from the bottom wall protrusion portion 3C1 (3X2) on both sides of the width direction Y1 in the connection portion 3X, are connected to the side wall protrusion portions 2B2, 2B2 of the side wall portion 2 (see FIGS. 20 and 23).

[0085] The connection portion 3X is less rigid than the wide portion 3CY and the side wall portion 2 (at least the lower end portion 2BL) (the connection portion 3X is more likely to bend in the height direction Z1 than the wide portion 3CY and the side wall portion 2 is more likely to bend in the opposite direction to the bottom wall extension direction X1). The connection portion 3X here is narrower in the width direction Y1 than both the wide portion 3CY (main bottom wall body portion) and the lower end portion 2BL of the side wall portion 2, and is therefore less rigid than both. For this reason, in the second embodiment, unlike the first embodiment, the connection portion 3X is primarily bent (the wide portion 3CY and the side wall portion 2 are only slightly bent) during installation (installation operation) and in the installed state (installation structure), and the side wall portion 2 is tilted in the opposite direction to the bottom wall extension direction X1 starting from the connection portion 3X.

[0086] The bottom wall locking portion 3A is formed to protrude in the bottom wall extending direction X1 from the center in the width direction Y1 of the tip of the wide portion 3CY in the bottom wall extending direction X1, and its thickness (width in the height direction Z1) is formed to be the same as that of the wide portion 3CY. The bottom wall locking portion 3A is formed in a concave shape by a slope 3c descending from the upper surface of the bottom wall protrusion portion 3C2 forming the tip of the wide portion 3CY in the bottom wall extending direction X1 toward the bottom wall extending direction X1, a bottom surface 3d beyond the slope 3c, and a vertical surface 3a rising from the bottom surface 3d. The vertical surface 3a becomes a locking vertical surface that locks with the locking surface 13k (see FIG. 26) of the lower surface side locking portion 13.

[0087] The elastic push-up piece 3B is an elastic piece (stabilizer) located between the side wall upper end side engaging part 2A and the bottom wall engaging part 3A in the bottom wall extending direction X1 and extending obliquely upward in the height direction Z1 (see Figs. 20 and 23). The elastic push-up pieces 3B here are elastic pieces 3B4 and 3B5 formed in pairs on each of the brackets 1C and 1D.

[0088] The elastic push-up piece 3B4 is a plate-like member having a constant width in the bottom wall extending direction X1 that extends upward and outward in the width direction Y1 from the outer end of the first side (upper side in FIGS. 21 and 24) in the width direction Y1 of the wide portion 3CY.

[0089] The elastic push-up piece 3B5 extends upward and outward in the width direction Y1 from the outer end of the second side (the lower side in Figures 21 and 24) opposite the first side in the width direction Y1 of the wide portion 3CY, and is plate-shaped with a constant width narrower than that of the elastic push-up piece 3B4 in the bottom wall extension direction X1.

[0090] The engaging and fixing portions 4 (4A, 4B) are the same as those of the brackets 1A, 1B of the first embodiment.

[0091] The method of attaching the electronic control part 10N to the brackets 1C and 1D is the same as the method of attaching the electronic control part 10N to the brackets 1A and 1B in the first embodiment. That is, the lower surface side locking part 13 of the electronic control part 10N (case 11) is locked to the bottom wall locking part 3A of the brackets 1C and 1D in the bottom wall extending direction X1 (see the broken line in FIG. 26), and the locking position is used as a fulcrum (center of rotation) to perform a rotational attachment operation (rotational direction U1) in which the attachment side part 12 of the electronic control part 10N is pushed under the side wall upper end side locking part 2A in a manner that tilts the side wall part 2. As a result, the electronic control part 10N is attached to the brackets, and an attachment structure 103 similar to the attachment structures 101 and 102 of the first embodiment is formed (see the solid line in FIG. 26).

[0092] The attachment state between the electronic control component 10N and the brackets 1C and 1D is basically the same as the attachment state between the electronic control component 10N and the brackets 1A and 1B in the first embodiment.

[0093] However, in the second embodiment, the engagement relationship between the mounting side surface portion 12 and the side wall portion 2 differs from that in the first embodiment due to the difference in shape between them. That is, in the mounted state of the second embodiment, the side wall protrusion portion 2B2 of the brackets 1C, 1D is sandwiched in the side width direction R10 between the elastic engagement piece 12J constituting the mounting side surface portion 12 and the engagement protrusion portion 12I adjacent thereto (see FIG. 27). As a result, the pair of the elastic engagement piece 12J and the engagement protrusion portion 12I functions as a movement restriction portion that restricts the movement of the electronic control component 10N (case 11) in the side width direction R10 relative to the brackets 1C, 1D.

[0094] Also, the second embodiment differs from the first embodiment in that the opposing interval (distance) between the two elastic push-up pieces 3B (3B4, 3B5) of each bracket 1C, 1D is long (see Figs. 21 and 24). Due to the long opposing interval between the elastic push-up pieces 3B (3B4, 3B5), the pushing-up positions of the electronic control component 10N (case 11) are farther apart, and as a result, the electronic control component 10N (case 11) can be stably pushed up and supported.

[0095] Furthermore, the brackets 1C and 1D of the second embodiment can also be attached to other electronic control components 10L (see Figures 28 to 30) of different shapes and sizes because they have bracket mounting portions 15 (12J, 12I, 13) that are modified to accommodate them.

[0096] Figure 28 shows a mounting structure 104 in which brackets 1C and 1D are attached to an electronic control component 10L. Electronic control component 10L basically has the same configuration as electronic control component 10N of the first embodiment (see Figure 19), but has a larger vertical width of case 11. Also, mounting side portions 12 are formed on three opposing side surfaces 11c out of four side surfaces 11c on the periphery, and corresponding lower surface locking portions 13 are provided on the lower surface 11b.

[0097] The mounting side surface portion 12 of the electronic control component 10L has an engagement protrusion 12K that protrudes outward from a partial section RC of the side surface 11c so as to have a locking upper surface 12k that faces upward below the main upper surface 11a0 of the electronic control component 10L in the vertical direction Z10. Specifically, the electronic control component 10L has an elastic engagement piece 12J formed in a shape that protrudes outward from the partial section RC of the side surface 11c, similar to the elastic engagement piece 12J of the electronic control component 10N, and the engagement protrusion 12K protrudes outward from the elastic engagement piece 12J. When attaching the electronic control component 10L to the brackets 1C, 1D, as in the first embodiment and the electronic control component 10N, the engaging protrusion 12K is pushed into the underside of the side wall upper end engaging portion 2A by the same rotational mounting operation (dashed line → solid line in Figure 31: rotation direction U1) as described above, and when pushed in, the engaging upper surface 12k of the engaging protrusion 12K engages with the underside surface 2a of the side wall upper end engaging portion 2A (see solid line in Figure 31).

[0098] The rotational mounting operation in the first and second embodiments can be performed in the manner described above or in the reverse manner. That is, as shown in Fig. 32, the electronic control component 10N can be mounted on the bracket (1C) by a rotational mounting operation (rotational direction U2) in which the upper surface 12k of the mounting side surface portion 12 is engaged with the side wall upper end side engaging portion 2A of the bracket (here, bracket 1C) facing upward in the height direction Z1, and the lower surface side engaging portion 13 is pushed in the opposite side of the bottom wall extending direction X1 of the bottom wall engaging portion 3A, using the engaging position as a fulcrum. In this rotational mounting operation, elastic deformation of the bracket (1C) occurs, which tilts the bottom wall portion 3 downward in the height direction Z1 and pushes the elastic push-up piece 3B downward in the height direction Z1.

[0099] Furthermore, in each mounting structure of the first and second embodiments, the electronic control component 10 is maintained in a floating state above the bottom wall portion 3 by being pushed up by the elastic push-up piece 3B, but the electronic control component 10 may also be placed on the bottom wall portion 3 without floating above the bottom wall portion 3, as in the mounting structure 105 of electronic control component 10N shown in Figure 33.

[0100] The mounting side portion 12 may have a shape other than that described above. For example, as shown in electronic control components 10S1 and 10S2 in Figs. 34 and 35, the mounting side portion 12 may be provided as a mounting protrusion that protrudes outward. In this case, in the mounted state, the side wall upper end side locking portion 2A (2a) is locked to the upper surface 12k (locking upper surface) of the mounting side portion 12 that forms the mounting protrusion. When the side wall portion 2 has a side wall protrusion 2B2, the mounting side portion 12 is disposed so as to avoid this, or is formed so as to protrude more than the protrusion amount of the side wall protrusion 2B2. When disposed so as to avoid this, the mounting side portion 12 functions as the movement restricting portion and positioning portion already described.

[0101] Also, as shown in electronic control components 10S3 and 10S4 in Fig. 36 and Fig. 37, the mounting recess may be provided as an inwardly recessed mounting recess. In this case, an upper surface 12k (locking upper surface) facing upward in the vertical direction Z10 is provided inside the mounting side surface portion 12 forming the mounting recess, and in the mounted state, the side wall upper end locking portion 2A (2a) locks to the upper surface 12k. When the side wall portion 2 has a side wall protrusion portion 2B2, the mounting side surface portion 12 is formed to accommodate it. In this way, the mounting side surface portion 12 functions as the movement restriction portion and positioning portion already described.

[0102] 38, the mounting side portion 12 may have the same shape as a section other than the section RC and may have no irregularities. In this case, the section RC on the side surface 11c is determined based on the position of the lower surface side engaging portion 13, and that section becomes the mounting side portion 12. Note that, as shown in the electronic control part 10S6 in FIG. 39, a protrusion accommodating recess (protrusion accommodating groove) 12V for accommodating the side wall protrusion 2B2 of the side wall portion 2 may be formed.

[0103] 40, the electronic control component 10Q may be formed so that the lower surface locking portion 13 is concave with respect to the lower surface 11b. In this case, the bottom wall locking portion 3A is formed so as to have a convex shape so as to enter the concave lower surface locking portion 13, and is formed so as to have a vertical surface 3a (locking vertical surface) that locks with the locking surface 13k inside the concave lower surface locking portion 13 toward the bottom wall piece protruding direction X1.

[0104] The mounting structures of the above-described first and second embodiments were mounting structures for a vehicle electronic control component (ECU) and a bracket (ECU bracket), but the present invention can be a mounting structure for a first member and a second member.

[0105] In this case, the first member is not limited to a box-shaped member having upper and lower surfaces and outer peripheral side surfaces, as long as it has upper and lower surfaces and side surfaces connecting them. For example, the first member may have a shape in which the upper and lower surfaces and side surfaces extend linearly with a U-shaped cross section. Therefore, the first member has an upper surface, a lower surface, and side surfaces extending in the vertical direction so as to connect the outer edge sides of the upper and lower surfaces, and a side surface portion including a partial section in the side width direction perpendicular to the vertical direction of the side surface forms a mounting side surface portion, and a lower surface side locking portion corresponding to the mounting side surface portion is formed on the lower surface. Also, the second member in this case is a resin injection molded body having an L-shaped mounting portion having a side wall portion and a bottom wall portion, as in the above embodiment, and the side wall portion has a side wall upper end side locking portion, the bottom wall portion has a bottom wall locking portion and an elastic push-up piece, and the elastic push-up piece can be configured to be located between the side wall upper end side locking portion and the bottom wall locking portion in the bottom wall extension direction. However, the engaging and fixing portion may be omitted, or a functional portion having a predetermined function including the engaging and fixing portion may be provided.

[0106] The functional part may be the engaging and fixing part already described, as well as a can holder part, a mobile phone holder part, etc. For example, in Fig. 4 and Fig. 20, if engaging and fixing part 4A is a functional part (hook part) for hanging an object, brackets 1A and 1C in Fig. 4 and Fig. 20 can be a second member having a functional part (hook part) for hanging an object, rather than a bracket for attaching an ECU to the vehicle body side. [Explanation of symbols]

[0107] 1A, 1A', 1B, 1B', 1C, 1D Bracket (second member) 2 Side wall 2A Side wall upper end locking part 2B Side wall main body 2B1 Main surface of side wall 2B2 Side wall protrusion 2BL lower end 3 Bottom wall 3A Bottom wall locking part 3B (3B1, 3B2, 3B3, 3B4, 3B5) Elastic push-up piece 3C Bottom wall body 3C1 Bottom wall bottom part 3C2 Bottom wall protrusion 3CX Bottom wall main body 3X Connection 4 Engagement fixing part 5 Bracket body 10, 10M, 10S, 10N, 10L, 10S1~10S6, 10Q Electronic control parts (first component) 11 Cases 11a Top side 11b Bottom side 11c side 12 Side mounting part 12k locking top surface 13 Bottom side locking part 100, 101, 102, 103, 104, 105, 106 Mounting structure 200 Body Panel X1 Bottom wall extension direction Y1 Width direction (side wall width direction, bottom wall width direction, bracket width direction, second member width direction) Z1 Height direction R10 Width direction (side width direction) RC Partial section Z10 Vertical direction

Claims

1. A mounting structure for mounting a bracket for an electronic control component to be mounted on a vehicle body side to the electronic control component, comprising: The electronic control component has an upper surface, a lower surface, and a side surface extending in a vertical direction so as to connect the outer edge sides of the upper surface and the lower surface, and a side surface portion including a partial section in a side surface width direction perpendicular to the vertical direction of the side surface forms an attachment side surface portion, and a lower surface side engaging portion corresponding to the attachment side surface portion is formed on the lower surface, the bracket is a resin injection molded body integrally having an L-shaped bracket main body including a side wall portion and a bottom wall portion extending from a lower end of the side wall portion in a height direction toward a predetermined bottom wall extending direction perpendicular to the height direction, and an engaging and fixing portion for attaching the bracket to a vehicle body side; The side wall portion has a side wall upper end side engaging portion, The bottom wall portion has a bottom wall engaging portion and an elastic push-up piece extending obliquely upward in the height direction, The elastic push-up piece is located between the side wall upper end side engaging portion and the bottom wall engaging portion in the bottom wall extending direction, The electronic control component is attached to the bracket by a rotational attachment operation in which the lower surface side engagement portion is engaged with the bottom wall engagement portion of the bracket in the bottom wall extending direction, the side wall portion is tilted in the opposite direction to the bottom wall extending direction using the engagement position as a fulcrum, and the elastic push-up piece is pushed downward in the height direction by elastic deformation of the bracket, and the electronic control component is attached to the bracket by a rotational attachment operation in which the lower surface side engagement portion is engaged with the bottom wall engagement portion of the bracket in the bottom wall extending direction, In this mounting state, the bracket is maintained in an elastically deformed state in which the side wall portion has returned to a state in which the tilt angle remains from the maximum tilt angle during the pivot mounting operation, and the elastic return force generated by this elastic deformation state causes the side wall portion to continuously press the electronic control component in the bottom wall extension direction, the lower surface side engaging portion is held in a state pressing the bottom wall engaging portion, and the elastic push-up piece is maintained in an elastically deformed state pressed downward in the height direction, and the elastic return force generated by this elastic deformation state causes the elastic push-up piece to continuously push the electronic control component upward in the height direction, and the mounting side portion is held in a state pressing the side wall upper end side engaging portion.

2. 2. The mounting structure according to claim 1, wherein the engaging surface of the side wall upper end engaging portion that engages the mounting side portion in the mounting state is a surface facing downward in the height direction of the side wall upper end engaging portion, and forms an acute angle with respect to the height direction when the side wall portion is not bent.

3. the side wall portion has a thin plate-shaped side wall main surface portion and a rib-shaped side wall protrusion portion that protrudes from the side wall main surface portion in the bottom wall extension direction, extends in the height direction, and is connected at its upper end to the side wall upper end side engagement portion; The mounting structure described in claim 1, wherein, in the mounted state, the mounting side portion functions as a movement restricting portion that restricts movement of the electronic control component in the side width direction relative to the bracket by clamping the side wall protrusion portion in the side width direction or by being clamped in the side width direction by a plurality of the side wall protrusion portions.

4. The bottom wall portion has a base end portion in the bottom wall extending direction that is connected to a lower end portion of the side wall portion, and the elastic push-up piece is formed to protrude from a bottom wall main body main portion adjacent to the connection portion on the bottom wall extending direction side, The mounting structure according to claim 1 , wherein the connecting portion has a lower rigidity than the main portion of the bottom wall body.

5. The mounting side portion has an outwardly protruding shape in a portion of the side surface so as to have an engaging upper surface that faces upward on the lower side in the vertical direction relative to the main upper surface of the electronic control component, and when the mounting side portion is pushed under the side wall upper end engaging portion during the rotational mounting operation, the engaging upper surface engages with the side wall upper end engaging portion.

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