Structure for fitting vehicular electronic component

Abstract

To provide a structure for fitting vehicular electronic components which can avoid a contact of an electronic component with another peripheral member due to a displacement of the electronic component on account of the transmission of external force to the electronic component side while suppressing the damage of a harness.SOLUTION: A structure for fitting vehicular electronic components 100 according to the present invention, being a structure for fitting vehicular electronic components comprising a vehicle rear bumper 102, a plurality of electronic components 104, 106, 108, and a fixing member 110 for fixing a plurality of electronic components on the rear bumper, is characterized in that the rear bumper has a panel wall 112 directing rearward of the vehicle and a bottom wall 114 extending from the bottom edge 116 of the panel wall to the vehicle front side, and in that the fixing member has a front wall 136, arranged by separation from the panel wall to the vehicle front side so as to face the panel wall and coupled with the bottom wall, and an upper wall 138 extending from the top edge of the front wall to the vehicle rear side to be coupled with the panel wall and to connect the panel wall with the front wall.SELECTED DRAWING: Figure 3

Description

[Technical field]

[0001] The present invention relates to an electronic component mounting structure for a vehicle. [Background technology]

[0002] A rear bumper that is elongated in the vehicle width direction is installed at the rear end of a vehicle such as an automobile. In some cases, predetermined vehicle electronic components (such as an antenna) are attached to the rear bumper. Patent Document 1 describes a remote door lock control device for a vehicle. This remote door lock control device for a vehicle includes a portable device, a control device, and a plurality of antennas (LF antennas) as electronic components for the vehicle. The control device is mounted on the vehicle and performs wireless radio communication with the portable device, and controls the locking and unlocking of the doors according to the communication results. The antennas are arranged on both the left and right sides of the rear panel (rear bumper) to perform wireless communication with the portable device located around the outside of the vehicle.

[0003] Patent document 1 states that by arranging multiple antennas on both the left and right sides of the rear panel, radio waves can easily reach from the corners of the vehicle to the farther sides of the vehicle's sides and the farther sides of the vehicle's rear. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2005-76369 A Summary of the Invention [Problem to be solved by the invention]

[0005] In the vehicle remote door lock control device of Patent Document 1, multiple antennas are distributed and arranged on the rear bumper, so the length of the harness connected to each antenna becomes long and the range over which the harness is routed becomes wide.

[0006] For this reason, when an external force acts on the rear bumper, the external force is transmitted to the antenna and harness, and their positions are displaced, which may cause the harness to be pinched between the rear bumper and a body frame member (e.g., the rear bumper beam), resulting in damage such as breakage. In addition, the antenna, which is an electronic component, may also be displaced and come into contact with surrounding members, resulting in damage.

[0007] In view of these problems, the present invention aims to provide an electronic component mounting structure for a vehicle that can suppress damage to the harness while avoiding contact between the electronic component and other surrounding components that would occur when an external force is transmitted to the electronic component and the electronic component is displaced. [Means for solving the problem]

[0008] In order to solve the above problems, a typical configuration of the present invention is an electronic component mounting structure for a vehicle comprising a rear bumper of a vehicle, a plurality of electronic components, and a fixing member for fixing the plurality of electronic components to the rear bumper, wherein the rear bumper has a panel wall facing the rear of the vehicle and a bottom wall extending from a lower end of the panel wall to the front of the vehicle, and the fixing member has a front wall connected to the bottom wall and arranged to face the panel wall at a distance from the panel wall to the front of the vehicle, and an upper wall extending from an upper end of the front wall to the rear of the vehicle and connected to the panel wall, connecting the panel wall and the front wall. Effect of the Invention

[0009] According to the present invention, it is possible to provide an electronic component mounting structure for a vehicle that can suppress damage to the harness while avoiding contact between the electronic component and other surrounding components that would occur when an external force is transmitted to the electronic component and the electronic component is displaced. [Brief description of the drawings]

[0010] [Figure 1] 1 is a diagram showing a vehicle electronic component mounting structure according to an embodiment of the present invention; [Diagram 2] 2 is a diagram showing a main part of the vehicle electronic component mounting structure of FIG. 1. [Diagram 3]FIG. 3 is a diagram showing a state in which a plurality of electronic components are attached to the fixing member of FIG. 2(a). [Figure 4] 2(b) is a cross-sectional view of the vehicle electronic component mounting structure taken along line AA in FIG. [Diagram 5] 3 is another cross-sectional view of the vehicle electronic component mounting structure of FIG. 2(b). [Figure 6] 3 is a diagram showing a modified example of the fixing member in FIG. 2. [Figure 7] 3 is a diagram showing another modified example of the fixing member in FIG. 2. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0011] A typical configuration of one embodiment of the present invention is an electronic component mounting structure for a vehicle comprising a rear bumper of a vehicle, a plurality of electronic components, and a fixing member for fixing the plurality of electronic components to the rear bumper, wherein the rear bumper has a panel wall facing the rear of the vehicle and a bottom wall extending from a lower end of the panel wall to the front of the vehicle, and the fixing member has a front wall connected to the bottom wall and arranged to face the panel wall at a distance from the panel wall to the front of the vehicle, and an upper wall extending from an upper end of the front wall to the rear of the vehicle and connected to the panel wall, connecting the panel wall and the front wall.

[0012] In the above configuration, since multiple electronic components are attached to one fixing member fixed to the rear bumper, the length of the harness connected to the multiple electronic components can be shortened. This reduces the range of the harness that receives external forces, thereby suppressing damage to the harness. In addition, a closed cross section can be formed by the panel wall and bottom wall of the rear bumper and the front wall and top wall of the fixing member. This increases the rigidity of the fixing member and the periphery of the fixing member of the rear bumper, thereby reducing external forces transmitted to the electronic components, and suppressing displacement of the electronic components to avoid contact with other surrounding members.

[0013] Furthermore, since the mounting points of the multiple electronic components are set on the fixing member, the workability of mounting the multiple electronic components is improved. Compared to a case where the multiple electronic components are fixed to the rear bumper individually without using the fixing member, the above configuration can reduce the number of fixing points of the multiple electronic components and the harness to the rear bumper, thereby reducing costs.

[0014] The plurality of electronic components may include first and second electronic components, the first electronic component being attached to the front wall of the fixing member and the second electronic component being attached to the top wall. The plurality of electronic components may include first and second electronic components, the first and second electronic components being attached to one of the front wall or the top wall of the fixing member in different orientations.

[0015] As a result, the multiple electronic components are attached to the front wall and the top wall of the fixing member, respectively, or to the front wall or the top wall of the fixing member in different orientations. By attaching the multiple electronic components to the fixing member in different orientations in this way, it is possible to prevent the electronic components from coming into contact with each other and being damaged when subjected to an external force. In addition, since the orientations of the multiple electronic components attached to the fixing member are different from each other, it is easy to perform the installation work of the electronic components and the wiring work of the harness.

[0016] Preferably, some of the plurality of electronic components are attached to the front wall of the fixing member, and the remaining electronic components are attached to the top wall of the fixing member. In this way, the plurality of electronic components can be attached to the front wall and the top wall of the fixing member in different orientations.

[0017] The upper wall has a horizontal portion facing the bottom wall and a flange portion bent from the horizontal portion and extending upward along the panel wall, and the first electronic component is attached to the horizontal portion and the second electronic component is attached to the flange portion, so that the first and second electronic components are attached in different postures.

[0018] This allows multiple electronic components to be attached in different positions to the horizontal portion and flange portion of the upper wall of the fixing member. Therefore, even if an external force is applied, contact between the electronic components can be suppressed. Even if an external force acts on one of the horizontal portion or the flange portion of the upper wall, the fixing member can be deformed to absorb a part of the external force transmitted to the other of the horizontal portion or the flange portion. This suppresses displacement of the electronic components attached to the other of the horizontal portion or the flange portion of the upper wall, making it easier to protect the electronic components.

[0019] The upper wall may have a panel connection portion that connects the upper wall to the panel wall, and the first and second electronic components may be arranged in the vehicle width direction with the panel connection portion between them. In this way, since the first electronic component and the second electronic component are spaced apart in the vehicle width direction with the panel connection portion between them, even if an external force is applied and the periphery of the panel connection portion of the fixing member is displaced, the electronic components are unlikely to come into contact with each other, and damage to the electronic components can be prevented.

[0020] The upper wall may have a horizontal portion facing the bottom wall and a flange portion bent from the horizontal portion and extending upward along the panel wall, and the first electronic component may be attached to the front wall and the second electronic component may be attached to the flange portion of the upper wall. In this way, multiple electronic components can be attached in different positions to the flange portion of the upper wall and the front wall of the fixing member.

[0021] The above-mentioned panel connection portion connects the flange portion to the panel wall, and the flange portion preferably extends from the panel connection portion toward the second electronic component. As a result, even if an external force from the panel wall of the rear bumper is transmitted to the flange portion via the panel connection portion of the upper wall of the fixing member, the external force is absorbed by deformation of the boundary between the flange portion and the horizontal portion and its surroundings. Furthermore, the flange portion of the upper wall does not extend to the first electronic component attached to the horizontal portion. As a result, external forces are less likely to be transmitted to the horizontal portion of the upper wall, making it easier to protect the first electronic component.

[0022] A first electronic component is attached to the front wall of the fixing member and a second electronic component is attached to the top wall, the first electronic component is disposed within a space partitioned by the front wall, the top wall, the panel wall and the bottom wall, and the second electronic component is disposed outside the space.

[0023] In this way, the first electronic component is disposed within the space partitioned by the fixing member and the rear bumper, and the second electronic component is disposed outside the space, so that the first electronic component and the second electronic component are partitioned by the fixing member. This makes it possible to prevent the electronic components from interfering with each other, and makes it easier to protect the first electronic component or the second electronic component even if the fixing member is deformed by an external force.

[0024] The first electronic component may be a light, and the second electronic component may be an antenna. With this, the light is attached to the front wall of the fixing member and is disposed in a space defined by the front wall, the top wall, and the panel wall and bottom wall of the rear bumper. Also, the antenna is attached to the top wall of the fixing member and disposed outside the defined space. This makes it possible to prevent air that has become hot due to heat generated by the light from flowing toward the antenna.

[0025] The fixing member has a pair of side walls spaced apart in the vehicle width direction connecting the side edge of the front wall and the side edge of the upper wall adjacent to the side edge, and the pair of side walls preferably have a shape that becomes farther away from the panel wall as they extend downward.

[0026] In this way, the rigidity of the fixing member can be increased because the front wall and the upper wall are connected by the side wall. Also, because the side wall has a shape that gets farther away from the panel wall as it goes downward, the hot air around the light can be exhausted from between the side wall and the panel wall. EXAMPLES

[0027] Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The dimensions, materials, and other specific values ​​shown in the embodiments are merely examples for facilitating understanding of the invention, and do not limit the present invention unless otherwise specified. In this specification and drawings, elements having substantially the same functions and configurations are given the same reference numerals to avoid repeated explanations, and elements not directly related to the present invention are not shown.

[0028] Fig. 1 is a diagram showing an electronic component mounting structure for a vehicle 100 according to an embodiment of the present invention. Fig. 1(a) is a diagram showing the electronic component mounting structure for a vehicle 100 as viewed obliquely from above on the front side of the vehicle. Fig. 1(b) is a diagram showing the electronic component mounting structure for a vehicle 100 of Fig. 1(a) as viewed obliquely from below on the rear side of the vehicle. In each of the following figures, the front-rear direction of the vehicle is indicated by arrows Front and Back, the left and right directions in the width direction of the vehicle are indicated by arrows Left and Right, and the top-bottom direction of the vehicle are indicated by arrows Up and Down.

[0029] The vehicle electronic component mounting structure 100 includes a rear bumper 102 of the vehicle, a plurality of (three in this example) electronic components 104, 106, 108 shown in Fig. 3, and a fixing member 110. The rear bumper 102 is a resin member that is elongated in the vehicle width direction, and has a panel wall 112 and a bottom wall 114. The panel wall 112 extends in the vehicle up-down direction and faces the rear of the vehicle. The bottom wall 114 extends from a lower end 116 of the panel wall 112 toward the front of the vehicle.

[0030] As an example, the rear end of the vehicle is composed of various members such as rear parts 118a, 118b of the rear sandwich members shown in Fig. 1(a), back panel support parts 120a, 120b connected to the rear parts 118a, 118b of the rear sandwich members, and a rear bumper beam 122. The rear bumper beam 122 is a vehicle body frame member that extends in the vehicle width direction and is placed between the back panel support parts 120a, 120b. A fixing member 110 is disposed below the rear bumper beam 112. A door opening 124 formed by the rear bumper 102 is located above the rear bumper beam 112.

[0031] As shown in Fig. 1(a), a panel wall 112 of the rear bumper 102 is formed with a plurality of (four in this example) harness support portions 126 arranged in the vehicle width direction with a fixing member 110 sandwiched therebetween. As shown in Fig. 1(b), the panel wall 112 is further formed with a bent portion 128 that bends toward the front of the vehicle as it extends downward, a recessed portion 130 that is recessed toward the front of the vehicle, and a fog lamp cover opening 134 that exposes a fog lamp cover 132. The fog lamp cover opening 134 is defined by the bent portion 128 and the recessed portion 130, and is located in the center in the vehicle width direction.

[0032] The fixing member 110 is a member to which the plurality of electronic components 104, 106, 108 (see FIG. 3) are attached, thereby fixing the plurality of electronic components 104, 106, 108 to the rear bumper 102. A specific description will be given below.

[0033] Fig. 2 is a diagram showing a main part of the vehicle electronic component mounting structure 100 of Fig. 1. Fig. 2(a) is an enlarged view of the fixing member 110 and its surroundings of Fig. 1. Fig. 2(b) is a diagram showing the vehicle electronic component mounting structure 100 of Fig. 2(a) as viewed from the front side of the vehicle.

[0034] The fixing member 110 has a front wall 136, an upper wall 138, and a pair of side walls 140a, 140b spaced apart in the vehicle width direction. The front wall 136 is disposed so as to face the panel wall 112 of the rear bumper 102 and spaced apart from the panel wall 112 toward the vehicle front side, and is connected to the bottom wall 114 via connecting portions 114a, 114b provided on the bottom wall 114.

[0035] Upper wall 138 extends from an upper end 141 of front wall 136 toward the rear of the vehicle, and is connected to panel wall 112 via connecting portion 112a provided on panel wall 112, thereby connecting panel wall 112 and front wall 136. In this manner, in vehicle electronic component mounting structure 100, a closed cross section can be formed by panel wall 112 and bottom wall 114 of rear bumper 102, and front wall 136 and upper wall 138 of fixing member 110.

[0036] Further, the pair of side walls 140a, 140b respectively connect the side edges 136a, 136b of the front wall 136 to the side edges 138a, 138b of the upper wall 138 adjacent to these side edges 136a, 136b. This can increase the rigidity of the fixing member 110. Furthermore, the pair of side walls 140a, 140b have a shape that moves away from the panel wall 112 as it goes downward.

[0037] The upper wall 138 has a horizontal portion 142 facing the bottom wall 114 of the rear bumper 102, and a flange portion 144. The flange portion 144 bends from a rear edge 145 of the horizontal portion 142 and extends upward along the panel wall 112. The flange portion 144 also has a panel connecting portion 146 that connects the upper wall 144 to the panel wall 112, and a fixing portion 148 that fixes the electronic component 108 (see FIG. 3).

[0038] The horizontal portion 142 of the upper wall 138 has a fixing portion 150 for fixing the electronic component 106 (see FIG. 3). The front wall 136 also has an opening 152 provided in the center in the vehicle width direction, and a recessed portion 154 recessed toward the rear of the vehicle. In the upper wall 138, the fixing portion 148 of the flange portion 144 and the fixing portion 150 of the horizontal portion 142 are arranged to be aligned in the vehicle width direction with the panel connecting portion 146 in between.

[0039] The fixing member 110 further has tapered portions 156a, 156b, 156c, and 156d. The tapered portion 156a is formed so as to straddle the front wall 136, the horizontal portion 142 of the upper wall 138, and the side wall 140a. The tapered portion 156b is formed so as to straddle the recessed portion 154 of the front wall 136, the horizontal portion 142 of the upper wall 138, and the side wall 140b. The tapered portion 156c is located below the tapered portion 156b, and is formed so as to straddle the front wall 136, the recessed portion 154, and the side wall 140a. The tapered portion 156d is formed so as to straddle the front wall 136, the recessed portion 154, and the horizontal portion 142 of the upper wall 138. The rigidity of the fixing member 110 can be increased by such tapered portions 156a, 156b, 156c, and 156d.

[0040] The front wall 136 also has harness support portions 158a, 158b, and 158c. The harness support portion 158a is formed near the tapered portion 156a. The harness support portion 158b is formed in the recessed portion 154 of the front wall 136. The harness support portion 158c is located below the recessed portion 154.

[0041] The front wall 136 also has mounting holes 160a and 160b that are used when fixing the electronic component 104 (see FIG. 3) with a mounting jig (not shown). The mounting hole 160b is formed in the recess 154 as shown in the figure.

[0042] Furthermore, the front wall 136 has an edge rib 162 and guide ribs 164a, 164b. The edge rib 162 is disposed so as to surround the periphery of the front wall 136 except for the area below the opening 152, and also protrudes toward the front of the vehicle. The guide ribs 164a, 164b are disposed below the opening 152 and the edge rib 162 of the front wall 136, and also protrude toward the front of the vehicle. In this manner, the rigidity of the area around the opening 152 of the front wall 136 can be increased.

[0043] The guide ribs 164a, 164b have gaps 166a, 166b between them and the edge rib 162, and are inclined so as to widen outward from each other and be positioned lower toward the outside in the vehicle width direction.

[0044] Furthermore, the front wall 136 has positioning portions 168a, 168b, 168c, and 168d, and front wall connecting portions 170a, 170b, 170c, and 170d. The positioning portions 168a and 168b position the connecting portion 114a provided on the bottom wall 114 of the rear bumper 102. The front wall connecting portions 170a and 170b connect the connecting portion 114a of the positioned bottom wall 114 to the front wall 136. Note that by using either the positioning portion 168a and the front wall connecting portion 170a, or the positioning portion 168b and the front wall connecting portion 170b, the connecting portion 114a of the bottom wall 114 can be positioned and connected to the front wall 136.

[0045] The positioning portions 168c, 168d position the connecting portion 114b provided on the bottom wall 114 of the rear bumper 102. The front wall connecting portions 170c, 170d connect the positioned connecting portion 114b of the bottom wall 114 to the front wall 136. Note that by using either the positioning portion 168c and the front wall connecting portion 170c, or the positioning portion 168d and the front wall connecting portion 170d, the connecting portion 114b of the bottom wall 114 can be positioned and connected to the front wall 136.

[0046] Fig. 3 is a diagram showing a state in which a plurality of electronic components 104, 106, 108 are attached to the fixing member 110 of Fig. 2(a). Fig. 4 is a cross-sectional view of the vehicle electronic component mounting structure 100 of Fig. 2(b) taken along line AA. Fig. 5 is another cross-sectional view of the vehicle electronic component mounting structure 100 of Fig. 2(b).

[0047] The electronic component 104 is a light (here, a fog lamp) and is disposed in a space 172 defined by the front wall 136 and top wall 138 of the fixing member 110 and the panel wall 112 and bottom wall 114 of the rear bumper 102, as shown in FIG.

[0048] The electronic component 104, which is a fog lamp, generates heat during use, causing the surrounding air to become hot. This hot air is exhausted from inside the space 172 to the outside through the routes Ra, Rb, Rc, Rd, and Re shown in Fig. 2(a). Route Ra is a route that passes from inside the space 172 through the opening 152. Routes Rb and Rc are routes that pass through gaps 166a and 166b between the edge rib 162 and the guide ribs 164a and 164b, and head toward the outside in the vehicle width direction along the guide ribs 164a and 164b, respectively.

[0049] In addition, as shown in the BB cross section of FIG. 5(a) and the CC cross section of FIG. 5(b), the pair of side walls 140a, 140b are shaped to move away from the panel wall 112 as they go downward, so that the space between the side walls 140a, 140b and the panel wall 112 and the bottom wall 114 communicates with the space 172 in which the electronic components 104 are arranged. In other words, the paths Rd and Re are paths that pass from inside the space 172 between the side walls 140a, 140b and the panel wall 112 and the bottom wall 114, and go from below the side walls 140a, 140b toward the outside in the vehicle width direction. In this way, air that has become hot due to the heat generated by the electronic components 104 can be reliably exhausted from inside the space 172 to the outside. The electronic components 104 can be electronic components such as lights other than fog lamps, sensors, and control units for on-vehicle components.

[0050] As shown in FIG. 4, when the flange portion 144 of the upper wall 138 of the fixing member 110 is connected by the panel connecting portion 146, the connecting portion 112a provided on the panel wall 112 becomes a seat surface to which the fixing member 110 is connected. Also, as shown in FIG. 4, the bent portion 128 of the panel wall 112 is bent toward the front side of the vehicle as it goes downward, and its lower end 128a extends to the fog lamp cover opening 134. Note that the fog lamp cover 132 exposed from the fog lamp cover opening 134 is fixed to the electronic component 104. The bent portion 128 has a change portion 128b that is bent toward the rear side of the vehicle near the lower end 128a. And the connecting portion 112a of the panel wall 112 is provided at the change portion 128b of the bent portion 128.

[0051] 4 becomes a seating surface when the front wall 136 of the fixing member 110 is connected by the front wall connecting portions 170c, 170d. The bottom wall 114 has a curved portion 174 that curves downward from the lower end 116 of the panel wall 112 toward the front of the vehicle. The curved portion 174 has a varying portion 174a that is curved more than its surroundings. The connecting portion 114b of the bottom wall 114 is provided at the varying portion 174a of the curved portion 174.

[0052] This makes it possible to suppress the occurrence of sink marks in the rear bumper 102 due to the gap between the outside and inside of the resin material during resin molding using a mold. In addition, the joint areas between the connecting portion 112a of the panel wall 112, which serves as the base, and the connecting portion 114b of the bottom wall 114 and each surface are increased, so that the fixing member 110 can be stably connected. In addition, the changing portion 128b of the bent portion 128 and the changing portion 174a of the curved portion 174 are reinforced by the connecting portions 112a and 114b, so that deformation of the rear bumper 102 can be suppressed when an external force acts on the rear bumper 102. This makes it possible to suppress the displacement of the fixing member 110, and to prevent the harnesses (described later) shown in FIG. 3 from coming into contact with surrounding members. Although each of the connecting portions 112a, 114b is provided on each of the transition portions 128b, 174a, the present invention is not limited to this, and either one or both of the connecting portions 112a, 114b may be provided in a position different from the transition portions 128b, 174a.

[0053] Furthermore, fixing member 110 is disposed closer to the front of the vehicle than transition portion 128b of bent portion 128 in panel wall 112 of rear bumper 102 and rear bumper beam 112. Therefore, when an external force is received, the external force can be released to rear bumper 102 or rear bumper beam 112, thereby suppressing the load transmitted to fixing member 110. Furthermore, since recess 130 is provided in panel wall 112, the transmission of the external force to fixing member 110 during a rear-end collision can be suppressed.

[0054] 3, the electronic component 104 is fixed to the front wall 136 by bolts 176a, 176b inserted into mounting holes 160a, 160b (see FIG. 2) in the front wall 136. The electronic component 104 is connected to a harness 180 via a connector 178. The harness 180 is pulled out from the opening 152, and is supported by a support member 182a attached to a harness support portion 158c of the front wall 136 shown in FIG. 2 and a support member 182b attached to a harness support portion 158b.

[0055] The electronic component 106 is a keyless antenna, and is fixed to a fixing portion 150 of the horizontal portion 142 of the upper wall 138. The electronic component 106 is connected to a harness 186 via a connector 184. However, the figure illustrates a state in which the connector 184 is detached from the electronic component 106. The harness 186 is supported by support members 188a, 188b attached to a harness support portion 158a of the front wall 136 shown in FIG. 2. The electronic component 106 may be an antenna other than a keyless antenna, or a control unit for sensors, lamps, or in-vehicle components.

[0056] The electronic component 108 is a BLE (Bluetooth Low Energy; Bluetooth is a registered trademark) antenna, and is fixed to a fixing portion 148 of a flange portion 144 of the upper wall 138. The electronic component 108 is connected to a harness 192 via a connector 190. The harness 192 is supported by a support member 182b as shown in the figure. Furthermore, these harnesses 180, 186, 192 are connected to a harness 194 that is stretched across the vehicle width direction. This harness 194 is supported by a support member 196 attached to a harness support portion 126 of the panel wall 112. Note that the electronic component 108 may be an antenna other than a BLE antenna, or an electronic component such as a control unit for sensors, lamps, or in-vehicle components.

[0057] In this manner, in the vehicle electronic component mounting structure 100, the multiple electronic components 104, 106, 108 are mounted on one fixing member 110 fixed to the rear bumper 102, so that the overall length of the harnesses 180, 186, 192 connected to the multiple electronic components 104, 106, 108 can be shortened. This reduces the range of the harnesses 180, 186, 192 that are subjected to external forces, so that damage to the harnesses 180, 186, 192 can be suppressed. Furthermore, since the mounting points of the multiple electronic components 104, 106, 108 are set on one fixing member 110, the workability of mounting the multiple electronic components 104, 106, 108 is improved. Furthermore, since the number of fixing points of the multiple electronic components 104, 106, 108 and the harnesses 180, 186, 192 to the rear bumper 102 can be reduced, costs can be reduced.

[0058] In the vehicle electronic component mounting structure 100, the electronic component 106 is mounted to the horizontal portion 142 of the upper wall 138 of the fixing member 110, and the electronic component 108 is mounted to the flange portion 144 of the upper wall 138. This allows the electronic components 106, 108 to be mounted in different postures. This makes it possible to prevent the electronic components 106, 108 from coming into contact with each other even when an external force is applied.

[0059] Furthermore, even if an external force acts on one of the horizontal portion 142 or the flange portion 144 of the upper wall 138, by deforming the fixing member 110, it is possible to absorb a part of the external force transmitted to the other of the horizontal portion 142 or the flange portion 144. This makes it easier to protect the electronic components 106, 108 by suppressing displacement of the electronic components 106, 108 attached to the other of the horizontal portion 142 or the flange portion 144 of the upper wall 138.

[0060] 3, the electronic components 106, 108 are arranged in the vehicle width direction on either side of the panel connecting portion 146 of the flange portion 144. Therefore, even if the periphery of the panel connecting portion 146 of the flange portion 144 is deformed due to an external force, contact between the electronic components 106, 108 can be suppressed, and damage to the electronic components 106, 108 can be prevented.

[0061] Furthermore, the flange portion 144 of the upper wall 138 extends from the panel connecting portion 146 toward the electronic component 108. As a result, even if an external force from the panel wall 112 of the rear bumper 102 is transmitted to the flange portion 144 via the panel connecting portion 146 of the fixing member 110, the external force is absorbed by deformation of the rear edge 145 of the horizontal portion 142, which is the boundary between the flange portion 144 and the horizontal portion 142, and its surrounding area. Furthermore, the flange portion 144 does not extend toward the electronic component 106 attached to the horizontal portion 142 of the upper wall 138. As a result, the external force is less likely to be transmitted to the horizontal portion 142 of the upper wall 138, making it easier to protect the electronic component 106.

[0062] 2, the tapered portions 156a, 156b, 156c, and 156d of the fixing member 110, which have increased rigidity, are located at the corners of the fixing member 110. Therefore, when the fixing member 110 is displaced, the tapered portions 156a, 156b, 156c, and 156d are likely to come into surface contact with surrounding members, and the load transmitted to the fixing member 110 can be suppressed.

[0063] 5(a), in the fixing member 110, an edge 157 of the tapered portion 156a and an edge 197 of the side wall 140a are inclined so as to be substantially parallel to each other, thereby making it possible to suppress deformation of the fixing member 110 when it is subjected to an external force.

[0064] 5(b), in the fixing member 110, the electronic component 104 is fixed to the recessed portion 154 of the front wall 136 via a bolt 176b. This increases the rigidity of the fixing member 110, and further allows the electronic component 104 to be fixed to the fixing member 110 in such a position that the direction of light emitted from the electronic component 104, which is a fog lamp, faces toward the rear of the vehicle.

[0065] Furthermore, in the vehicle electronic component mounting structure 100, the electronic component 104 is disposed in a space 172 partitioned by the fixing member 110 and the rear bumper 102, and the electronic components 106, 108 are disposed outside the space 172. Therefore, the electronic components 104 and 106, 108 are partitioned by the fixing member 110. This makes it possible to prevent interference between the electronic components 104 and 106, 108, and makes it easier to protect the electronic component 104 or the electronic components 106, 108 even if the fixing member 110 is deformed by an external force.

[0066] In this embodiment, the peripheral members include other members disposed around the fixing member 110. In the vehicle electronic component mounting structure 100, the displacement of the electronic components 104, 106, 108 is suppressed as described above, so that contact between the electronic components 104, 106, 108 and other members around the fixing member 110 can be avoided.

[0067] Furthermore, in the vehicle electronic component mounting structure 100, the electronic component 104 is a fog lamp that generates heat, and the electronic components 106, 108 are antennas. Therefore, the electronic components 104 and 106, 108 are separated by the fixing member 110, and the air that has become hot due to the heat generated by the electronic component 104 is exhausted to the outside through the routes Ra, Rb, Rc, Rd, and Re shown in Fig. 2, thereby preventing the hot air from flowing toward the antennas.

[0068] In the above-described vehicle electronic component mounting structure 100, the electronic component 104 is fixed to the front wall 136 of the fixing member 110, the electronic component 106 is fixed to the horizontal portion 142 of the upper wall 138, and the electronic component 108 is fixed to the flange portion 144 of the upper wall 138, but this is not limited to the above.

[0069] As an example, the electronic component 104 may not be fixed to the fixing member 110, but the electronic component 106 may be fixed to the upper wall 138 or the horizontal portion 142, and the electronic component 108 may be fixed to the flange portion 144. In this case, the electronic component 106 may be disposed on the front or rear side of the upper wall 138 or on the upper or lower side of the horizontal portion 142. Also, the electronic component 108 may not be fixed to the fixing member 110, but the electronic component 104 may be fixed to one of the front wall 136 or the upper wall 138, and the electronic component 106 may only be fixed to the horizontal portion 142 or the flange portion 144 of the front wall 136 or the upper wall 138. Furthermore, the electronic component 106 may not be fixed to the fixing member 110, but the electronic component 104 may be fixed to one of the horizontal portion 142 of the front wall 136 or the upper side 138, and the electronic component 108 may only be fixed to the flange portion 144 of the upper wall 138 or the other of the front wall 136 or the horizontal portion 142.

[0070] Fig. 6 is a diagram showing a modified example of the fixing member 110 of Fig. 2. Fig. 6(a) and Fig. 6(b) are perspective views showing a modified fixing member 110A as viewed from the rear side and the front side of the vehicle, respectively.

[0071] Fixing member 110A differs from fixing member 110 described above mainly in that fixing member 110A has two exhaust ports 210a, 210b, two first recesses 212a, 212b, a second recess 214, and a bulge 216 formed in front wall portion 137.

[0072] The exhaust ports 210a and 210b are formed above the opening 152 as a harness outlet through which the harness 180 (see FIG. 3) is pulled out. Therefore, in the fixing member 110A, the air that has become hot due to heat generated by the electronic component 104, which is the fog lamp, and that has remained in the space 172 (see FIGS. 4 and 5), for example, near the upper wall 142, can be exhausted from the space 172 to the outside.

[0073] The first recess 212a is a portion that is located below the exhaust port 210a and recessed toward the rear of the vehicle, and is located further rearward than the exhaust port 210a. The first recess 212b is a portion that is located below the exhaust port 210b and recessed toward the rear of the vehicle, and is located further rearward than the exhaust port 210b. Therefore, in the fixing member 110A, even if rainwater or the like drips onto the upper wall 138, for example, it is possible to prevent the rainwater or the like from flowing around to the exhaust ports 210a and 210b side.

[0074] 6(a), the first recess 212b is connected to the recess 154. Therefore, in the fixing member 110A, the rigidity of the first recess 212b and the periphery of the recess 154 can be increased.

[0075] Here, since a larger current flows through the electronic component 104 which is a fog lamp than through sensors such as the electronic component 108 which is a BLE antenna and the electronic component 106 which is a keyless entry antenna, it is necessary to prevent rainwater from flowing into the electronic component 104 which is a fog lamp.

[0076] Therefore, the edge rib 162 is formed in an inverted U-shape that is disposed so as to surround the periphery of the opening 152 of the front wall 137 except for the lower part, and is formed so as to protrude toward the front of the vehicle. Therefore, the fixing members 110, 110A having the edge rib 162 can facilitate the flow of rainwater falling from above in a direction away from the harness 180 (see FIG. 3) as shown by the path Rf. The edge rib 162 is not limited to a curved shape, and may be formed in a shape that is inclined linearly like the guide ribs 164a, 164b.

[0077] 6(b), the second recess 214 of the fixing member 110A is connected to the first recess 212a and is a portion recessed toward the rear of the vehicle. Therefore, by forming the second recess 214 in the fixing member 110A, the thickness of the front wall 137 can be increased to increase the rigidity of the front wall 137 and its surroundings. In addition, since the first recess 212a and the second recess 214 are connected, the rigidity can be further increased.

[0078] 6(a), the bulging portion 216 is a portion that bulges out toward the front of the vehicle along the base end portion 162a of the edge rib 162. Therefore, in the fixing member 110A, the bulging portion 216 can increase the rigidity of the edge rib 162 and its surroundings. Furthermore, the bulging portion 216 has a portion connected to each of the first recesses 212a, 212b, so that the rigidity can be further increased.

[0079] In the fixing member 110A, the connecting portion 114a of the bottom wall 114 of the rear bumper 102 can be positioned and connected to the front wall 137 by the positioning portion 168e of the front wall 137 and the front wall connecting portion 170e.

[0080] Fig. 7 is a diagram showing another modified example of the fixing member 110 of Fig. 2. Fig. 7(a) and Fig. 7(b) are perspective views showing a fixing member 110B of another modified example as viewed from the rear side and the front side of the vehicle, respectively.

[0081] The fixing member 110B is used, for example, when heat generated by the electronic component 104 does not affect the antenna-like electronic components 106 and 108. The fixing member 110B differs from the above-described fixing member 110 mainly in that a fog lamp cover 198 is integrated with or attached to the fixing member 110B, and further includes an accommodation portion 204 that straddles the front wall 200 and the upper wall 202 and accommodates the electronic component 104.

[0082] According to such fixing member 110B, electronic component 104 is accommodated and fixed in accommodation portion 204, electronic component 106 is further fixed to fixing portion 150 of horizontal portion 142a, and electronic component 108 is fixed to fixing portion 148 of flange portion 144 that is bent and extends upward from horizontal portion 142b, thereby making it possible to fix electronic components 104, 106, and 108 from the front side of the vehicle. Therefore, it is possible to improve the workability when attaching a plurality of electronic components 104, 106, and 108 to fixing member 110A and when wiring harnesses drawn from each electronic component.

[0083] In addition, with the fixing member 110B, the electronic components 106, 108 are fixed to the left and right front walls 200 or the left and right horizontal portions 142a, 142b separated by the storage section 204 so that the electronic components 106, 108 are positioned on the rear side of both the left and right sides of the front wall 200, respectively, thereby making it possible to partition the electronic components 106, 108 by the wall surfaces of the storage section 204.

[0084] Furthermore, in the fixing member 110B, the connecting portions 114a, 114b of the bottom wall 114 of the rear bumper 102 can be positioned and connected to the front wall 200 by the positioning portions 206a, 206b and the front wall connecting portions 208a, 208b of the front wall 200.

[0085] Although the preferred embodiment of the present invention has been described above with reference to the accompanying drawings, it goes without saying that the present invention is not limited to such an embodiment. It is clear that a person skilled in the art can think of various modifications or alterations within the scope of the claims, and it is understood that these also naturally belong to the technical scope of the present invention. [Industrial Applicability]

[0086] The present invention can be used in a vehicle electronic component mounting structure. [Explanation of symbols]

[0087] 100...Vehicle electronic component mounting structure 102…Rear bumper 104, 106, 108...Electronic components 110, 110A, 110B...Fixing members 112…Panel wall 114…Bottom wall 114a, 114b...connecting portion of bottom wall 116…Bottom edge of panel wall 118a, 118b…Rear part of rear sand member 120a, 120b...back panel support 122…Rear bumper beam 124…Door opening 126…Harness support for panel wall 128…Bend 128a…Lower end of bent part 128b…Bend change 130…Recess 132, 198…Fog lamp cover 134…Opening for fog lamp cover 136, 137, 200...Front wall 136a, 136b...side edge of front wall 138, 202…Upper wall 138a, 138b...side edge of upper wall 140a, 140b...side wall 141…Top of front wall 142, 142a, 142b...Horizontal part 144…Flange section 146…Panel connection part 148, 150...Fixed part 152…Front wall opening 154…Recess 156a, 156b, 156c, 156d...Tapered portion 157…Edge of tapered section 158a, 158b, 158c...Harness support parts on the front wall 160a, 160b, 160c...Mounting holes 162…Edge rib 162a...base end of edge rib 164a, 164b...Guide rib 166a, 166b...Gap 168a, 168b, 168c, 168d, 168e, 206a, 206b...positioning parts 170a, 170b, 170c, 170d, 170e, 208a, 208b...Front wall connection part 172…space 174…Curved part of bottom wall 174a...Change in curved section 176a, 176b...Bolts 178, 184, 190…Connector 180, 186, 192, 194…Harness 182a, 182b, 188a, 188b, 196...support members 197…Side wall edge 204…Storage section 210a, 210b...exhaust port 212a, 212b...first recess 214…Second recess 216…bulge

Claims

1. A vehicle electronic component mounting structure including a rear bumper of a vehicle, a plurality of electronic components, and a fixing member for fixing the plurality of electronic components to the rear bumper, The rear bumper is a rearward facing panel wall of the vehicle; a bottom wall extending from a lower end of the panel wall toward the front of the vehicle, The fixing member is a front wall that is connected to the bottom wall and is disposed to face the panel wall and spaced apart from the panel wall toward the front of the vehicle; a top wall extending from an upper end of said front wall toward the rear of the vehicle and connected to said panel wall, said top wall connecting said panel wall and said front wall.

2. the plurality of electronic components include first and second electronic components; 2. The vehicle electronic component mounting structure according to claim 1, wherein the first electronic component is mounted on the front wall of the fixing member, and the second electronic component is mounted on the upper wall of the fixing member.

3. the plurality of electronic components include first and second electronic components; 2. The vehicle electronic component mounting structure according to claim 1, wherein the first and second electronic components are mounted in different orientations on either the front wall or the top wall of the fixing member.

4. 4. The vehicle electronic component mounting structure according to claim 2, wherein a portion of the plurality of electronic components is attached to the front wall of the fixing member, and the remaining electronic components excluding the portion are attached to the upper wall.

5. The upper wall is A horizontal portion facing the bottom wall; a flange portion bent from the horizontal portion and extending upward along the panel wall, 4. The vehicle electronic component mounting structure according to claim 2 or 3, characterized in that the first electronic component is attached to the horizontal portion and the second electronic component is attached to the flange portion, so that the first and second electronic components are mounted in different orientations from each other.

6. the upper wall has a panel connection portion connecting the upper wall to the panel wall; 6. The vehicle electronic component mounting structure according to claim 5, wherein the first and second electronic components are arranged in a vehicle width direction with the panel connecting portion therebetween.

7. The upper wall is A horizontal portion facing the bottom wall; a flange portion bent from the horizontal portion and extending upward along the panel wall, 4. The vehicle electronic component mounting structure according to claim 2, wherein the first electronic component is mounted on the front wall, and the second electronic component is mounted on the flange portion of the upper wall.

8. the panel connection portion connects the flange portion to the panel wall, 8. The vehicle electronic component mounting structure according to claim 7, wherein the flange portion extends from the panel connecting portion toward the second electronic component.

9. the first electronic component is attached to the front wall of the fixing member and the second electronic component is attached to the top wall of the fixing member, the first electronic component is disposed in a space defined by the front wall, the top wall, the panel wall and the bottom wall, 4. The vehicle electronic component mounting structure according to claim 2, wherein the second electronic component is disposed outside the space.

10. the first electronic component is a light, 10. The vehicle electronic component mounting structure according to claim 9, wherein the second electronic component is an antenna.

11. the fixing member has a pair of side walls spaced apart in the vehicle width direction and connecting a side edge of the front wall and a side edge of the upper wall adjacent to the side edge, 11. The vehicle electronic component mounting structure according to claim 10, wherein the pair of side walls are shaped so as to become farther away from the panel wall as they extend downward.

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