Mounting structure

Abstract

To provide a mounting structure for an electronic device in a vehicle, capable of suppressing reduction in a sufficient space inside the vehicle compartment, as well as capable of suppressing an impact of side collision.SOLUTION: A mounting structure 1 is configured for a plurality of electronic devices 40 to be mounted on a vehicle. The vehicle includes: side members 5L, 5R extending in a vehicle longitudinal direction of the and arranged at a predetermined interval in a vehicle width direction; and cross members 20F, 20R arranged in a direction intersecting the side members 5L, 5R. Electronic devices 41, 42 are arranged side by side in the vehicle width direction via the cross member 20R, and the electronic device 42 arranged on an outer side with respect to the vehicle in the vehicle width direction is held by a fixing part 50 supported by the cross member 20R. The fixing part 50 includes a holding part 51 and a support part 55. The holding part 51 includes an inner leg part 52A and an outer leg part 52B. The outer leg part 52B is formed longer than the inner leg part 52A in a vertical direction.SELECTED DRAWING: Figure 2

Description

Technical Field

[0001] The present invention relates to a mounting structure for mounting electronic devices on a vehicle.

Background Art

[0002] Conventionally, vehicles such as electric vehicles equipped with electronic devices such as a power control unit (PCU) are known (for example, Patent Document 1). In the vehicle described in Patent Document 1 mentioned above, the PCU is arranged inside a space portion protruding upward from the side member.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] However, in the vehicle described in Patent Document 1 mentioned above, since a plurality of electronic devices are stacked and arranged in the vertical direction inside the above-mentioned space portion, the installation height of the electronic devices becomes high, and there is a concern of compressing the space in the vehicle interior. On the other hand, when a plurality of electronic devices are arranged side by side in the vehicle width direction inside the above-mentioned space portion, although the height can be suppressed, when a side collision is received, there is a concern that the electronic devices are pushed from the side and interfere with parts such as other electronic devices. As a result, there is a concern that the electronic devices are damaged and do not function properly.

[0005] Therefore, an object of the present invention is to provide a mounting structure for electronic devices on a vehicle that can suppress compression of the space in the vehicle interior and can suppress the influence of side collisions.

Means for Solving the Problems

[0006] (1) The mounting structure of the present invention provided to solve the above-described problems is a mounting structure for mounting a plurality of electronic devices on a vehicle. The vehicle has a pair of side members extending in the longitudinal direction of the vehicle and arranged at a predetermined interval in the vehicle width direction, and at least one cross member arranged in a direction intersecting the side members. The plurality of electronic devices are arranged side by side in the vehicle width direction via the cross member. Among the plurality of electronic devices, at least one electronic device arranged closer to the outer side in the vehicle width direction with respect to the vehicle is held by a fixing portion supported by the cross member.

[0007] In the above-described mounting structure, since a plurality of electronic devices are arranged side by side in the vehicle width direction in the vehicle, it is possible to suppress the compression of the space in the vehicle interior. Further, in the above-described mounting structure, among the plurality of electronic devices, at least one electronic device arranged closer to the outer side in the vehicle width direction with respect to the vehicle is held by a fixing portion supported by the cross member. Therefore, in the above-described mounting structure, when the vehicle is subjected to a side collision (hereinafter also referred to as a side impact), it is possible to suppress other electronic devices adjacent in the vehicle width direction from interfering with and being damaged by the electronic device held by the fixing portion. Here, examples of the electronic device include an Electronic Control Unit (ECU), a Power Control Unit (PCU), an Electric Supply Unit (ESU), and the like. Further, examples of the electronic device held by the fixing portion include a charging ECU, a vacuum pump ECU, and the like.

[0008] (2) In the mounting structure of the present invention described above, it is preferable that the fixing portion has a holding portion that holds at least one of the electronic devices at a distance from the cross member, and at least one support portion that supports the holding portion and protrudes from the cross member toward the holding portion.

[0009] In the mounting structure described above, since at least one electronic device is held at a distance from the cross member by the support portion and the holding portion, the electronic device can be arranged at a relatively high position. Therefore, according to the mounting structure described above, an improvement in workability during the assembly and maintenance of the electronic device can be expected. Further, according to the mounting structure described above, since a space is formed between the electronic device held by the holding portion and the cross member, various members can be accommodated using this space. Therefore, the mounting structure described above can reduce the installation space of the electronic device. Further, in the mounting structure described above, since at least one electronic device is held at a distance from the cross member by the holding portion, when the vehicle is side-impacted, the holding portion absorbs (buffers) the impact, thereby suppressing damage to other electronic devices adjacent in the vehicle width direction.

[0010] (3) In the mounting structure of the present invention, the holding portion has a pair of leg portions on both sides in the vehicle width direction via at least one of the held electronic devices, and the outer leg portion disposed closer to the outer side in the vehicle width direction among the pair of leg portions is formed to be longer in the vertical direction than the inner leg portion on the other side.

[0011] With the above-described mounting structure, when the vehicle is side-impacted, the outer leg portion deforms earlier than the inner leg portion. Therefore, the above-described mounting structure can suppress the electronic device held by the holding portion from falling inward in the vehicle width direction when the vehicle is side-impacted. That is, the above-described mounting structure can suppress the electronic device held by the holding portion from being pushed in the vehicle inner direction. Thereby, the above-described mounting structure can suppress interference between an electronic device (for example, ESU) disposed inside the vehicle and an electronic device (for example, charging ECU) held by the holding portion.

[0012] (4) In the mounting structure of the present invention described above, the fixing portion has a space between it and the cross member, and it is characterized in that wiring or a cooling pipe can be arranged in the space.

[0013] With the above-described mounting structure, by adopting such a configuration, wiring and cooling pipes can be arranged in the space between the fixing part and the cross member. Therefore, since the above-described mounting structure can effectively utilize the space, the installation space of the electronic device can be reduced, and the pressure on the vehicle interior can be suppressed. Further, with the above-described mounting structure, it is not necessary to pass wiring and cooling pipes above the fixing part, so the upper side of the fixing part can be effectively utilized.

[0014] (5) In the mounting structure of the present invention described above, it is preferable that the outer leg portion is formed to have a bending strength weaker than that of the inner leg portion.

[0015] With the above-described mounting structure, by adopting such a configuration, the outer leg portion can be deformed prior to the inner leg portion. Thereby, with the above-described mounting structure, it is possible to suppress the electronic device from being pushed in the vehicle inner direction during a side collision. Further, with the above-described mounting structure, it is possible to suppress interference between an electronic device (for example, an ESU) arranged on the vehicle inner side and an electronic device (for example, a charging ECU) held by the holding part.

[0016] (6) In the mounting structure of the present invention described above, the support part has an outer support part arranged closer to the outer side in the vehicle width direction via at least one of the electronic devices held by the holding part, and an inner support part arranged closer to the inner side in the vehicle width direction via at least one of the electronic devices held by the holding part, and it is preferable that the outer support part is arranged to be inclined in a direction intersecting the vehicle width direction with respect to the inner support part.

[0017] With the above-described mounting structure, since the outer support part is arranged to be inclined in a direction intersecting the vehicle width direction with respect to the inner support part, the strength of the outer support part can be maintained. Therefore, with the above-described mounting structure, when the vehicle receives a side collision, the outer leg portion in the holding part can be deformed prior to the outer support part. Thereby, with the above-described mounting structure, it is possible to suppress the electronic devices adjacent in the vehicle width direction from interfering with and damaging the electronic device held by the holding part.

[0018] (7) In the mounting structure of the present invention described above, it is preferable that both end sides in the vehicle width direction of the cross member are supported by the side members via brackets respectively.

[0019] In the mounting structure described above, since the cross member is structured to be supported by the side members via brackets, after attaching the brackets to the side members, the cross member can be attached to the brackets. That is, in the mounting structure described above, the cross member can be mounted later. Therefore, the mounting structure described above can improve the assemblability. Here, it is preferable that the brackets are detachable from the side members and the cross member.

[0020] (8) In the mounting structure of the present invention described above, both end sides in the vehicle width direction of the cross member are supported by the side members via brackets respectively, and the outer support portion is erected on the bracket and supported by the cross member via the bracket. It is preferable that this is characterized.

[0021] By adopting such a configuration in the mounting structure described above, the assemblability of the outer support portion can be improved. Further, in the mounting structure described above, adjustment of the attachment direction of the outer support portion and the like can be easily performed.

[0022] (9) In the mounting structure of the present invention described above, it is preferable that the holding portion is suspended above at least one of the electronic devices.

[0023] By adopting such a configuration in the mounting structure described above, an electronic device can be held below the holding portion. Therefore, in the mounting structure described above, the space on the upper surface side of the holding portion can be effectively utilized.

[0024] (10) In the above-described mounting structure of the present invention, at least one of the electronic devices held by the holding portion is a charging ECU, and a vacuum pump ECU is disposed on the opposite side of the charging ECU via the holding portion, and the vacuum pump ECU is held by the holding portion. This is a characteristic.

[0025] With such a configuration, the above-described mounting structure can efficiently arrange the charging ECU and the vacuum pump ECU. That is, the charging ECU and the vacuum pump ECU can be arranged close to a battery disposed below the vehicle body, for example. Thereby, miniaturization of the vehicle can be expected.

Effects of the Invention

[0026] According to the present invention, it is possible to provide a mounting structure of an electronic device for a vehicle that can suppress compression of the space in the vehicle interior and can suppress the influence of a side collision.

Brief Description of the Drawings

[0027]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Modes for Carrying Out the Invention

[0028] Hereinafter, with reference to the accompanying drawings, the details of the mounting structure 1 according to an embodiment of the present invention will be described. These drawings are schematic diagrams and are not necessarily drawn to an exact scale. Also, in the drawings, similar components are denoted by similar reference numerals. Further, in the present embodiment, the case where the vehicle 2 is, for example, an electric vehicle will be described as an example.

[0029] As shown in FIG. 1, the vehicle 2 is configured to transmit the rotational power generated by electric power to the drive wheels 2A, 2A to travel. In the present embodiment, the vehicle 2 is equipped with the motor 3 as a driving source for traveling, and the rotational power generated by supplying electric power to the motor 3 is transmitted to the drive wheels 2A, 2A to travel. Here, for the vehicle 2, for example, a cab-over type electric vehicle or a hybrid vehicle can be used.

[0030] The vehicle 2 includes a pair of side members 5L, 5R at the lower part of the vehicle body 4. The side members 5L, 5R are symmetrically configured and are provided so as to extend in the longitudinal direction with a space therebetween in the vehicle width direction (left-right direction). The side members 5L, 5R are arranged substantially parallel to each other on both sides in the longitudinal direction, but are bent at the intermediate portion and are configured to approach each other toward the front side of the vehicle.

[0031] The region formed between the side members 5L, 5R can be roughly classified into three regions: a rear region 10, an intermediate region 11, and a front region 12. The rear region 10 is a region formed in a portion where the side members 5L, 5R are arranged substantially parallel to each other with a predetermined interval at the rear side of the vehicle 2. The rear region 10 is a substantially rectangular region.

[0032] The battery 6 is disposed across the rear side region 10 to the intermediate region 11. The battery 6 is formed by arranging a large number of battery cells 6a in a single row in the vertical direction and arranging a large number of them in the horizontal direction (in the vehicle width direction and the vehicle longitudinal direction in this embodiment). The battery 6 is disposed across from the substantially rectangular rear side region 10 formed between the side members 5L and 5R on the rear side of the vehicle to the front end side of the intermediate region 11. Therefore, the battery 6 also has a height (thickness) sufficient to accommodate the battery cells 6a and has a substantially rectangular outer shape. Accordingly, the battery 6 mounted on the vehicle 2 arranges the battery cells 6a with almost no dead space inside, and is thin and has a high capacity. Further, in the rear side region 10, a motor 3, a transaxle (not shown), and the like are mounted. Details of the motor 3 and the transaxle are omitted.

[0033] Further, the intermediate region 11 is a region formed between the side members 5L and 5R at the intermediate portion of the side members 5L and 5R. The intermediate region 11 is formed in a portion where the side members 5L and 5R are inclined so that the interval becomes narrower than that in the rear side region 10 toward the front side. Therefore, unlike the rear side region 10, the intermediate region 11 is a substantially trapezoidal region. An electronic device 40 described later is mounted in the intermediate region 11. Further, in the intermediate region 11, a cross member 20F located on the front side of the vehicle and a cross member 20R located on the rear side of the vehicle with a predetermined interval from the cross member 20F are provided. The battery 6 is disposed below the cross members 20F and 20R.

[0034] The front side region 12 is a region formed in a portion where the side members 5R and 5L are arranged substantially in parallel on the front side of the vehicle 2 with respect to the intermediate region 11. The front side region 12 has a substantially rectangular shape similar to the rear side region 10, but since the interval between the side members 5L and 5R is narrower than that in the rear side region 10, it is a region smaller in the vehicle width direction than the rear side region 10.

[0035] As shown in Fig. 2, the cross members 20F and 20R are each formed as a hollow square column. The cross members 20F and 20R are formed to extend in the vehicle width direction and are spanned in a direction intersecting with the side members 5L and 5R. Further, support frames 21 and 21 (see Fig. 3) are provided between the cross member 20F and the cross member 20R.

[0036] Brackets 30 are provided at both ends of the cross members 20F and 20R. In other words, the cross members 20F and 20R are attached to the side members 5L and 5R via the brackets 30, respectively.

[0037] The bracket 30 has a first attachment portion 31 that covers both ends of the cross members 20F and 20R from above, and second attachment portions 32F and 32R that are bent downward with respect to the first attachment portion 31. The bracket 30 is formed to be detachable from the cross members 20F and 20R and the side members 5L and 5R.

[0038] The first attachment portion 31 is formed to extend along the upper surface side of the cross members 20F and 20R. The first attachment portion 31 can be fixed to both ends of the cross members 20F and 20R by fastening bolts or the like in a state of covering both ends of the cross members 20F and 20R.

[0039] The second attachment portion 32F of the bracket 30 attached to the front cross member 20F is formed in an L shape and can support the side members 5L and 5R. The second attachment portions 32F and 32F on both sides can be fixed to the side members 5L and 5R by fastening bolts or the like from below in a state where the side members 5L and 5R are respectively placed thereon. Thereby, the side members 5L and 5R are supported by the brackets 30 and 30. At this time, the cross sections at both ends of the cross member 20F are arranged so as to face the side members 5L and 5R. Therefore, when the vehicle 2 is subjected to a side impact, the cross member 20F can suppress the side members 5L and 5R from deforming inward in the vehicle width direction.

[0040] The second attachment portion 32R attached to the rear cross member 20R is formed in a plate shape and can abut against the side surfaces of the side members 5L and 5R. The second attachment portions 32R and 32R on both sides are fixed to the side members 5L and 5R by fastening bolts or the like from the side surface side while being in contact with the side surfaces of the side members 5L and 5R. Thereby, the side members 5L and 5R are supported by the brackets 30 and 30. At this time, the cross sections at both end sides of the cross member 20R are arranged so as to face the side members 5L and 5R. Therefore, when the vehicle 2 is subjected to a side impact, the cross member 20R can suppress the side members 5L and 5R from deforming inward in the vehicle width direction.

[0041] As shown in FIG. 3, the support frames 21 and 21 are spanned in a direction (the longitudinal direction of the vehicle 2) intersecting the cross member 20F and the cross member 20R, and integrally support the cross member 20F and the cross member 20R.

[0042] As shown in FIGS. 2 to 4, the mounting structure 1 includes the pair of side members 5L and 5R and the cross members 20F and 20R described above. Further, in addition to the above, the mounting structure 1 includes a plurality of electronic devices 40 arranged side by side in the vehicle width direction via the cross members 20F and 20R, a fixing portion 50 supported by the cross member 20R, and the like.

[0043] The electronic devices 40 constituting the mounting structure 1 are, for example, an electric supply unit 41 (also referred to as an Electricity Supply Unit: ESU41) and an electronic control unit (also referred to as an Electronic Control Unit: ECU). Here, in the present embodiment, a charging ECU 42 and a vacuum pump ECU 43 are mounted as ECUs. The ESU41 is assumed to be responsible for the charging function and the power conversion function in the vehicle 2. Further, the charging ECU 42 is assumed to be responsible for the charging control of the battery 6, and the vacuum pump ECU 43 is assumed to be responsible for the control of pumps such as those of the brake device.

[0044] The ESU41 is mounted on the support frames 21, 21 (cross members 20F, 20R). In this embodiment, the ESU41 is arranged closer to the center in the vehicle width direction and is arranged side by side in the vehicle width direction so as to be adjacent to the charging ECU42 and the vacuum pump ECU43.

[0045] The charging ECU42 and the vacuum pump ECU43 are held by the fixing portion 50. The fixing portion 50 includes a holding portion 51 and support portions 55, 55.

[0046] The support portions 55, 55 are formed by bending a plate-like member into a substantially U-shape. The support portions 55, 55 open downward in a substantially U-shape. The support portions 55, 55 are erected on the cross member 20R with a predetermined interval (in this embodiment, an interval slightly wider than the width of the charging ECU42) in the vehicle width direction. In other words, the support portions 55, 55 protrude from the cross member 20R toward the holding portion 51 described later. Further, the support portions 55, 55 are arranged closer to the outer side in the vehicle width direction with respect to the ESU41. Here, the support portion 55 arranged closer to the inner side in the vehicle width direction (closer to the ESU41) is also referred to as the inner support portion 55A, and the support portion 55 arranged closer to the outer side in the vehicle width direction (closer to the side member 5L) is also referred to as the outer support portion 55B.

[0047] The inner support portion 55A is formed to be higher than the outer support portion 55B. The open leg side of the inner support portion 55A is directly attached to the cross member 20R by welding or the like. The inner support portion 55A is erected on the cross member 20R in a state where the open leg direction is arranged along the cross member 20R (vehicle width direction). That is, the plate-like surface of the inner support portion 55A is arranged in a direction substantially orthogonal to the cross member 20R.

[0048] The outer support portion 55B has its open leg side attached by welding or the like onto the first attachment portion 31 of the bracket 30 attached to the cross member 20R. That is, the outer support portion 55B is indirectly attached to the cross member 20R. Although details will be described later, the outer support portion 55B is arranged such that the open leg direction is inclined in a direction intersecting the cross member 20R (vehicle width direction) with respect to the inner support portion 55A.

[0049] The holding portion 51 is formed of a plate-like member and is sized to be able to hold the charging ECU 42. The holding portion 51 is suspended above the charging ECU 42 and is supposed to hold the charging ECU 42 in a suspended state. In other words, the holding portion 51 is supposed to hold at least one of the electronic devices 40 (charging ECU 42) arranged closer to the outer side in the vehicle width direction with respect to the vehicle 2 among the plurality of electronic devices 40. Also, the holding portion 51 is supposed to hold the vacuum pump ECU 43 on the upper surface side. That is, the vacuum pump ECU 43 is arranged on the opposite side of the charging ECU 42 via the holding portion 51 and is held on the holding portion 51. Therefore, the mounting structure 1 described above can efficiently arrange the charging ECU 42 and the vacuum pump ECU 43. That is, the charging ECU 42 and the vacuum pump ECU 43 can be arranged close to the battery 6 arranged below or behind the vehicle body, for example. Thereby, miniaturization of the vehicle 2 can be expected. Also, the holding portion 51 has a pair of leg portions 52, 52 on both sides in the vehicle width direction via the held charging ECU 42. Note that the holding portion 51 may be composed of a plurality of members as necessary.

[0050] In the present embodiment, an auxiliary battery 9 (see FIG. 1) is mounted closer to the outer side in the vehicle width direction of the holding portion 51. The auxiliary battery 9 is arranged on the opposite side of the holding portion 51 via the side member 5R. Therefore, in the present embodiment, when the vehicle 2 is subjected to a side impact, first, the auxiliary battery 9 is pushed toward the holding portion 51.

[0051] The legs 52, 52 are provided on both sides in the vehicle width direction of the holding part 51. Here, the leg 52 arranged closer to the inner side (closer to the ESU41) in the vehicle width direction is also referred to as the inner leg 52A, and the leg 52 arranged closer to the outer side in the vehicle width direction is also referred to as the outer leg 52B. The inner leg 52A and the outer leg 52B are formed of plate-like members, and are each formed so as to extend downward from the holding part 51.

[0052] The lower end side of the inner leg 52A is fixed to the upper end side of the inner support part 55A. Thereby, the inner side closer to the vehicle width direction in the holding part 51 is supported on the cross member 20R. In other words, the inner side closer to the vehicle width direction in the holding part 51 is supported on the cross member 20R via the inner support part 55A and the inner leg 52A. That is, the inner support part 55A and the inner leg 52A function as a seat. Further, the inner leg 52A is formed such that the length in the vertical direction is substantially equal to the height of the charging ECU42.

[0053] The outer leg portion 52B is formed to be longer in the vertical direction than the inner leg portion 52A (the height of the charging ECU 42). The lower end side of the outer leg portion 52B is fixed to the upper end side of the outer support portion 55B. As a result, the outer side in the vehicle width direction in the holding portion 51 is supported on the cross member 20R. In other words, the outer side in the vehicle width direction in the holding portion 51 is supported on the cross member 20R via the outer support portion 55B and the outer leg portion 52B. That is, the outer support portion 55B and the outer leg portion 52B function as a spacer. Further, since the outer leg portion 52B is formed to be longer in the vertical direction than the inner leg portion 52A and the outer support portion 55B is formed to be lower in the vertical direction than the inner support portion 55A, the holding portion 51 is supported so as to be in a substantially horizontal state. Thereby, when the vehicle 2 receives a side impact, the outer leg portion 52B deforms earlier than the inner leg portion 52A. Therefore, the mounting structure 1 described above can suppress the charging ECU 42 and the vacuum pump ECU 43 held by the holding portion 51 from being pushed inward in the vehicle width direction. Specifically, when the vehicle 2 receives a side impact, the charging ECU 42 and the vacuum pump ECU 43 do not shift inward in the vehicle width direction because they fall downward.

[0054] Also, as described above, since the holding portion 51 is supported via the leg portions 52, 52 and the support portions 55, 55, a space is formed between the holding portion 51 (the fixing portion 50) and the cross member 20R. In the present embodiment, a space 60 is formed between the charging ECU 42 held by the holding portion 51 and the cross member 20R. Therefore, as shown in FIG. 5, in order to effectively utilize the space 60, wirings 45 such as the ESU 41 and the charging ECU 42 and cooling pipes 8 such as the battery 6 are arranged in the space 60.

[0055] As described above, since the mounting structure 1 described above can effectively utilize the space 60, the installation space for the electronic device 40 can be reduced and the pressure on the vehicle interior can be suppressed. Further, in the mounting structure 1 described above, since there is no need to pass wirings and cooling pipes through the upper side of the fixing portion 50, the upper side of the fixing portion 50 can be effectively utilized.

[0056] The above is the configuration of the mounting structure 1 according to an embodiment of the present invention. Next, the operation and effects of the mounting structure 1 of the present invention will be described.

[0057] As described above, in the mounting structure 1 of the present invention, since a plurality of electronic devices 40 are arranged side by side in the vehicle width direction in the vehicle 2, it is possible to suppress the compression of the space in the vehicle interior. Further, in the mounting structure 1 described above, among the plurality of electronic devices 40, the electronic devices 40 (charging ECU 42, vacuum pump ECU 43) arranged closer to the outer side in the vehicle width direction with respect to the vehicle 2 are held by the fixing portion 50 supported by the cross member 20R. Therefore, in the mounting structure 1 described above, when the vehicle 2 is subjected to a side impact, it is possible to prevent other electronic devices 40 (ESU 41) adjacent in the vehicle width direction from interfering with and being damaged by the electronic device 40 (charging ECU 42) held by the fixing portion 50.

[0058] Further, in the mounting structure 1 described above, since the electronic devices 40 (charging ECU 42, vacuum pump ECU 43) are held at a distance from the cross member 20R by the support portions 55, 55 and the holding portion 51, the electronic devices 40 can be arranged at a relatively high position. Therefore, according to the mounting structure 1 described above, it is possible to expect an improvement in workability during the assembly and maintenance of the electronic devices 40. Further, according to the mounting structure described above, since a space 60 is formed between the electronic device 40 held by the holding portion 51 and the cross member 20R, various members can be accommodated using the space 60. Therefore, the mounting structure 1 described above can reduce the installation space of the electronic devices 40. Further, in the mounting structure 1 described above, since at least one electronic device 40 is held at a distance from the cross member 20R by the holding portion 51, when the vehicle 2 is subjected to a side impact, the holding portion 51 absorbs (buffers) the impact, thereby suppressing damage to other electronic devices 40 (ESU 41) adjacent in the vehicle width direction.

[0059] Further, in the mounting structure 1 described above, the holding portion 51 has a pair of leg portions 52, 52 on both sides in the vehicle width direction via at least one electronic device 40 held thereby, and the outer leg portion 52B disposed closer to the outer side in the vehicle width direction among the pair of leg portions 52, 52 is formed longer in the vertical direction than the inner leg portion 52A on the other side.

[0060] Therefore, in the mounting structure 1 described above, when the vehicle 2 is subjected to a side impact, the outer leg portion 52B deforms earlier than the inner leg portion 52A. Therefore, in the mounting structure 1 described above, when the vehicle 2 is subjected to a side impact, it is possible to suppress the electronic devices 40 (charging ECU 42, vacuum pump ECU 43) held by the holding portion 51 from falling inward in the vehicle width direction. That is, in the mounting structure 1 described above, it is possible to suppress the electronic devices 40 held by the holding portion 51 from being pushed inward in the vehicle 2. Thereby, in the mounting structure 1 described above, it is possible to suppress interference between the electronic device 40 (ESU 41) disposed inside the vehicle 2 and the electronic devices 40 (charging ECU 42, vacuum pump ECU 43) held by the holding portion 51.

[0061] Further, in the mounting structure 1 described above, since the outer support portion 55B is disposed so as to be inclined in a direction intersecting the vehicle width direction with respect to the inner support portion 55A, the strength of the outer support portion 55B can be maintained. Therefore, in the mounting structure 1 described above, when the vehicle 2 is subjected to a side impact, the outer leg portion 52B in the holding portion 51 can be deformed earlier than the outer support portion 55B. Thereby, in the mounting structure 1 described above, it is possible to suppress the electronic device 40 (ESU 41) adjacent in the vehicle width direction from interfering with and being damaged by the electronic devices 40 (charging ECU 42, vacuum pump ECU 43) held by the holding portion 51.

[0062] In addition, in the mounting structure 1 described above, since the cross members 20F and 20R are supported by the side members 5L and 5R via the brackets 30, after the brackets 30 are attached to the side members 5L and 5R, the cross members 20F and 20R can be attached to the brackets 30. That is, the mounting structure 1 described above allows the cross members 20F and 20R to be mounted later. Therefore, the mounting structure 1 described above can improve the assemblability.

[0063] In addition, in the mounting structure 1 described above, the outer support portion 55B stands on the bracket 30 and is supported by the cross member 20R via the bracket 30. Therefore, the mounting structure 1 described above can improve the assemblability of the outer support portion 55B. Also, the mounting structure 1 described above can easily adjust the mounting direction and the like of the outer support portion 55B.

[0064] In addition, in the mounting structure 1 described above, since the holding portion 51 is suspended above at least one electronic device 40, the electronic device 40 can be held below the holding portion 51. Therefore, the mounting structure 1 described above can effectively utilize the space on the upper surface side of the holding portion 51.

[0065] The above is the configuration and the operational effects of the mounting structure 1 according to an embodiment of the present invention. However, the mounting structure 1 of the present invention is not limited to the above-described embodiment, and various modifications can be made.

[0066] In this embodiment, as the electronic device 40, an example is given of one equipped with an ESU 41, a charging ECU 42, and a vacuum pump ECU 43. However, various types of electronic devices can be used for the electronic device 40. For example, the electronic device 40 may be a power control unit (also referred to as a PCU). Further, the electronic device 40 held by the holding portion 51 (fixing portion 50) is not limited to only the charging ECU 42 and the vacuum pump ECU 43, and various types of electronic devices 40 (for example, a PCU, an ESU, etc.) can be used. Note that it is desirable that the electronic device 40 held by the holding portion 51 be smaller than the electronic device 40 arranged adjacent to the holding portion 51. Also, the number of electronic devices 40 provided is not limited to the above-described embodiment, and can be various numbers. Further, the number of electronic devices 40 held by the holding portion 51 can also be held in various numbers from a single one to a plurality of ones.

[0067] Also, in this embodiment, an electric vehicle is exemplified as the vehicle 2. However, the mounting structure 1 of the present invention is not limited to this, and can be used for various vehicles (hybrid vehicles, engine vehicles, etc.). Also, regarding the shapes, sizes, and arrangements of the side members 5L and 5R and the cross members 20F and 20R in the vehicle 2, various ones can be used according to the form of the vehicle 2.

[0068] Also, the shape and size of the holding portion 51 are not limited to the above-described embodiment, and can be formed in various shapes and sizes. For example, the holding portion 51 may be formed by being divided into two or more parts. Also, the support portion 55 can also be formed in various shapes and sizes. For example, the holding portion 51 (leg portion 52) and the support portion 55 may be integrally formed. Also, the holding form of the electronic device 40 by the holding portion 51 is not limited to only being by suspension, and can be held in various holding forms. Also, the respective vertical lengths (heights) of the inner support portion 55A and the outer support portion 55B and the inner leg portion 52A and the outer leg portion 52B can be set to various lengths (heights) within the range where the object of the invention can be achieved.

[0069] In addition, in the present embodiment, the holding portion 51, the inner leg portion 52A, and the outer leg portion 52B are formed separately, but the holding portion, the inner leg portion 52A, and the outer leg portion 52B may be integrally formed.

[0070] In addition, in the present embodiment, a space 60 is formed between the fixing portion 50 (holding portion 51) and the cross member 20R. However, the space 60 may be provided as necessary, and a configuration without providing the space 60 is also possible. Further, when the space 60 is provided, various members can be accommodated in the space 60, not only the wiring 45 and the cooling pipe 8.

[0071] In addition, in the present embodiment, the bending strength of the inner leg portion 52A and the outer leg portion 52B is not particularly specified. For example, the outer leg portion 52B may be formed to have a bending strength weaker than that of the inner leg portion 52A.

[0072] With the mounting structure 1 described above, by adopting such a configuration, the outer leg portion 52B can be deformed prior to the inner leg portion 52A. Thereby, the mounting structure 1 described above can suppress the electronic device 40 from being pushed inward of the vehicle 2 during a side collision. Further, the mounting structure 1 described above can suppress interference between the electronic device 40 (for example, ESU 41) disposed inside the vehicle 2 and the electronic device 40 (for example, charging ECU 42) held by the holding portion 51.

[0073] In addition, in the present embodiment, the outer support portion 55B is arranged to incline in a direction intersecting the vehicle width direction with respect to the inner support portion 55A. However, the outer support portion 55B and the inner support portion 55A can be arranged in various directions. For example, the inner support portion 55A and the outer support portion 55B may be arranged so as to face the same direction along the vehicle width direction.

[0074] In addition, in this embodiment, both ends of the cross members 20F and 20R in the vehicle width direction are detachably supported by the side members 5L and 5R via brackets 30, respectively. However, the cross members 20F and 20R may be directly supported by the side members 5L and 5R. Further, the number of side members 5L and 5R and cross members 20F and 20R provided is not limited to the above-described embodiment, and can be appropriately changed according to the form of the vehicle 2.

[0075] In addition, in this embodiment, the outer support portion 55B is erected on the bracket 30 and supported by the cross member 20R via the bracket 30. However, the outer support portion 55B may be directly supported by the cross member 20R.

[0076] The above are various embodiments and modifications of the mounting structure according to the present invention. However, the present invention is not limited to those illustrated in the above-described embodiments and modifications, and other embodiments can be easily understood by those skilled in the art without departing from the scope of the claims and the spirit and teachings thereof.

Industrial Applicability

[0077] The mounting structure of the present invention can be used for mounting electronic devices in various vehicles such as electric vehicles, hybrid vehicles, and engine vehicles. The mounting structure of the present invention can be preferably used for vehicles such as cab-over type electric vehicles and hybrid vehicles. Further, the mounting structure of the present invention can be used for mounting various electronic devices (for example, PCU, ESU, ECU, etc.) on the vehicle.

Explanation of Reference Numerals

[0078] 1: Mounting structure 2: Vehicle 5L: Side member 5R: Side member 8: Cooling pipe 20F: Cross member 20R: Cross member 30: Bracket 31: First attachment portion 32F: Second attachment part 32R: Second attachment part 40: Electronic device 41: Electric supply unit (ESU, electronic device) 42: Charging ECU (electronic device) 43: Vacuum pump ECU (electronic device) 45: Wiring 50: Fixing part 51: Holding part 52: Leg part 52A: Inner leg part 52B: Outer leg part 55: Support part 55A: Inner support part 55B: Outer support part 60: Space

Claims

1. A mounting structure for mounting a plurality of electronic devices on a vehicle, wherein the vehicle has a pair of side members extending in the longitudinal direction of the vehicle and arranged at a predetermined interval in the vehicle width direction, and at least one cross member arranged in a direction intersecting the side members, and the plurality of electronic devices are arranged side by side in the vehicle width direction via the cross member, among the plurality of electronic devices, at least one of the electronic devices arranged closer to the outside in the vehicle width direction with respect to the vehicle is held by a fixing portion supported by the cross member, the fixing portion has a holding portion that holds at least one of the electronic devices with a space from the cross member, and at least one support portion that supports the holding portion and protrudes from the cross member toward the holding portion, and the holding portion has a pair of leg portions on both sides in the vehicle width direction via at least one of the held electronic devices, and the outer leg portion arranged closer to the outside in the vehicle width direction of the pair of leg portions is formed longer in the vertical direction than the inner leg portion on the other side, characterized in that it is a mounting structure.

2. the fixing portion has a space between it and the cross member, and wiring or a cooling pipe can be arranged in the space, characterized in that it is the mounting structure according to Claim 1.

3. the outer leg portion is formed with a bending strength weaker than that of the inner leg portion, characterized in that it is the mounting structure according to Claim 1.

4. the support portion has an outer support portion arranged closer to the outside in the vehicle width direction via at least one of the electronic devices held by the holding portion, an inner support portion disposed closer to the inner side in the vehicle width direction via at least one of the electronic devices held by the holding portion; and has the outer support portion is arranged to be inclined in a direction intersecting the vehicle width direction with respect to the inner support portion, and the mounting structure according to claim 1, characterized in that.

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