Support structure for electrical components

Abstract

To provide a support structure for an electrical component capable of enhancing support rigidity for an electrical component installed immediately above a transmission case, and of curbing vibration of the electrical component.SOLUTION: According to a support structure for an inverter 11, the inverter 11 is installed immediately above a transmission 3 so that a longitudinal direction is directed in a front-rear direction of a vehicle 1 and a lateral direction is directed in a vehicle width direction, being arranged side by side with an engine 2 in the vehicle width direction. The support structure for the inverter 11 has an upper bracket 21 coupled with an upper wall 12 of the inverter 11 and a cylinder head 5. The inverter 11 is coupled with the cylinder head 5 via the upper bracket 21.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a support structure for electrical components. [Background technology]

[0002] Conventionally, a power plant for a hybrid vehicle is known in which an inverter (electrical component) is installed directly above the casing of the transaxle and the inverter and internal combustion engine are connected by a stay, thereby increasing the connection rigidity between the internal combustion engine and the transaxle and suppressing deformation such as bending and twisting between the internal combustion engine and the transaxle (see Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] International Publication No. 2012 / 114491 Summary of the Invention [Problem to be solved by the invention]

[0004] However, conventional hybrid vehicle power plants do not have a structure for suppressing vibrations of the inverter located directly above the transaxle casing, so there is room for improvement in suppressing inverter vibrations.

[0005] The present invention has been made in light of the above-mentioned circumstances, and aims to provide a support structure for electrical components that can increase the support rigidity of electrical components installed directly above the transmission case and suppress vibration of the electrical components. [Means for solving the problem]

[0006] The present invention provides a support structure for electrical components that is mounted on a vehicle having an internal combustion engine and a transmission connected to the internal combustion engine so as to be aligned with the internal combustion engine in the width direction of the vehicle, and that is installed directly above a transmission case of the transmission so that its longitudinal direction faces the front-rear direction of the vehicle and its lateral direction faces the width direction of the vehicle, wherein the electrical components and the internal combustion engine are installed side by side in the width direction of the vehicle, a first bracket connected to an upper wall of the internal combustion engine and a side wall of the internal combustion engine facing the transmission in the vehicle width direction; the upper wall of the electrical component and the First bracket Support member connected to and The electrical component teeth, the support member and the first bracket The vehicle is characterized in that it is connected to the internal combustion engine via a [Effects of the Invention]

[0007] As described above, according to the present invention, the support rigidity of the electrical components installed directly above the transmission case can be increased, and vibration of the electrical components can be suppressed. [Brief explanation of the drawings]

[0008] [Figure 1] FIG. 1 is a perspective view of an internal combustion engine and a transmission equipped with a support structure for electrical components according to one embodiment of the present invention. [Figure 2] FIG. 2 is a front view of an internal combustion engine and a transmission equipped with a support structure for electrical components according to one embodiment. [Figure 3] FIG. 3 is a left side view of an internal combustion engine and a transmission equipped with a support structure for electrical components according to one embodiment. [Figure 4] FIG. 4 is a top view of an internal combustion engine and a transmission equipped with a support structure for electrical components according to one embodiment. [Figure 5] FIG. 5 is a top view of a transmission equipped with a support structure for electrical components according to one embodiment, showing a state in which an upper bracket, an inverter, and a lower bracket have been removed from the transmission. [Figure 6] FIG. 6 is a top view of a transmission equipped with a support structure for electrical components according to one embodiment, showing a state in which an upper bracket and an inverter have been removed. [Figure 7]FIG. 7 is a diagram showing a support structure for an electrical component according to one embodiment of the present invention, and is an enlarged perspective view of a connecting portion between an upper bracket and an intermediate bracket. DETAILED DESCRIPTION OF THE INVENTION

[0009] A support structure for electrical components according to one embodiment of the present invention is mounted on a vehicle having an internal combustion engine and a transmission connected to the internal combustion engine in a line-up across the width of the vehicle, and is installed directly above the transmission case of the transmission with its longitudinal direction facing the fore-and-aft direction of the vehicle and its short side facing the width of the vehicle, in which the electrical components and the internal combustion engine are installed in a line-up across the width of the vehicle, and a support member is provided which is connected to the upper wall of the electrical components and the internal combustion engine, and the electrical components are connected to the internal combustion engine via the support member.

[0010] As a result, the support structure for electrical components according to one embodiment of the present invention can increase the support rigidity of the electrical components installed directly above the transmission case, and can suppress vibration of the electrical components. [Example]

[0011] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A support structure for an electrical component according to an embodiment of the present invention will now be described with reference to the drawings. 1 to 7 are diagrams showing a support structure for electrical components according to one embodiment of the present invention. In Fig. 1 to 7, the up-down, front-rear, left-right directions are based on the internal combustion engine and transmission installed in a vehicle, and the front-rear direction of the vehicle is defined as the front-rear direction, the left-right direction of the vehicle (vehicle width direction) is defined as the left-right direction, and the up-down direction of the vehicle (vehicle height direction) is defined as the up-down direction.

[0012] First, the configuration will be described. 1 and 2, an engine 2 as an internal combustion engine and a transmission 3 are installed in an engine room 1a of a vehicle 1 (see FIG. 3). As shown in FIG. 3, the vehicle 1 is equipped with a dash panel 1A, and the engine room 1a is formed in front of the dash panel 1A, and a passenger compartment 1b where passengers including a driver ride is formed behind the dash panel 1A.

[0013] As shown in FIG. 2, the engine 2 includes a cylinder block 4, a cylinder head 5 attached to the top of the cylinder block 4, a cylinder head cover 6 attached to the top of the cylinder head 5, and an oil pan (not shown) attached to the bottom of the cylinder block 4.

[0014] A crankshaft 4a is provided in the cylinder block 4, and the crankshaft 4a extends in the width direction of the vehicle (hereinafter also referred to as the vehicle width direction). The engine 2 of this embodiment is a transversely mounted engine.

[0015] 1 and 4, an EGR piping section 7 is provided in the cylinder head 5. The EGR piping section 7 is provided on the upper part of the cylinder head 5 so as to extend in the front-rear direction of the vehicle 1, and has an EGR passage 7a therein through which EGR gas flows (see FIG. 7).

[0016] Exhaust system components (not shown) are installed in front of the engine 2, and EGR gas flows from the exhaust system components into the front end of the EGR passage 7a. Intake system components (not shown) are installed in the rear of the engine 2, and EGR gas discharged from the rear end of the EGR passage 7a is discharged into the intake system components.

[0017] The transmission case 10 is connected to the cylinder block 4 of the engine 2, and changes the speed of the driving force (rotation) transmitted from the crankshaft 4a and outputs it.

[0018] The engine 2 and the transmission 3 are installed side by side in the vehicle width direction, and the transmission 3 is installed below the cylinder head 5. In other words, the engine 2 and the transmission 3 overlap in the front-rear direction.

[0019] The transmission 3 includes a transmission case 10, inside which a transmission mechanism including gears for speed change and a differential device (not shown) are installed.

[0020] 1 and 4, an inverter 11 serving as an electrical component is installed directly above the transmission case 10. The inverter 11 converts DC power supplied from a battery (not shown) into three-phase AC power and supplies it to the motor generator, and also converts the three-phase AC power generated by the motor generator into DC power to charge the battery.

[0021] As shown in FIG. 4, the inverter 11 is installed directly above the transmission case 10 with its longitudinal direction facing the front-rear direction of the vehicle 1 and its lateral direction facing the vehicle width direction.

[0022] As shown in FIG. 2, the inverter 11 has an upper wall 12, a lower wall 13, a front wall 14, a rear wall 15 (see FIG. 1), a left wall 16, and a right wall 17.

[0023] 1, an upper bracket 21 is connected to the upper wall 12 of the inverter 11. The upper bracket 21 is connected to the cylinder head 5 via an intermediate bracket 22.

[0024] That is, the inverter 11 is connected to the cylinder head 5 via the upper bracket 21. The upper bracket 21 in this embodiment constitutes a support member.

[0025] The intermediate bracket 22 has a horizontal wall portion 22A and a vertical wall portion 22B. As shown in Figures 4 and 7, the horizontal wall portion 22A is fastened to the EGR piping portion 7 from the vertical direction by bolts 20A. Specifically, the horizontal wall portion 22A is connected to the center of the upper wall 7b of the EGR piping portion 7 in the front-rear direction.

[0026] The vertical wall portion 22B extends downward from the left end portion in the vehicle width direction of the horizontal wall portion 22A and is fastened horizontally to the left side wall 5a of the cylinder head 5 by a bolt 20B (see FIGS. 1 and 2). The left side wall 5a of the cylinder head 5 faces the transmission 3 in the vehicle width direction.

[0027] In this embodiment, the upper wall 7b of the EGR pipe section 7 constitutes the upper wall of the internal combustion engine, and the left side wall 5a of the cylinder head 5 constitutes the side wall of the internal combustion engine.

[0028] As shown in FIG. 4, when the transmission 3 is viewed from above, the upper bracket 21 is formed in a triangular shape, and the inverter 11 is formed in a rectangular shape.

[0029] Fastening portions 21A, 21B, and 21C are provided at the three vertices of the triangle of upper bracket 21, and fastening portions 21A, 21B, and 21C are formed as bolt holes through which bolts 20C, 20D, and 20E are inserted, respectively.

[0030] The fastening portion 21A constitutes a first fastening portion of the present invention, the fastening portion 21B constitutes a second fastening portion of the present invention, and the fastening portion 21C constitutes a third fastening portion of the present invention.

[0031] As shown in FIG. 1, fastening portions 12A and 12B are provided at the diagonally opposite front and rear ends of a rectangular upper wall 12 of the inverter 11.

[0032] Specifically, the fastening portion 12A is provided at the left end of the front end of the upper wall 12, and the fastening portion 12B is provided at the right end of the rear end of the upper wall 12, diagonally opposite the fastening portion 12A.

[0033] The fastening portion 21A of the upper bracket 21 is fastened to the fastening portion 12A of the upper wall 12 of the inverter 11 by a bolt 20C, and the fastening portion 21B of the upper bracket 21 is fastened to the fastening portion 12B of the upper wall 12 of the inverter 11 by a bolt 20D.

[0034] As a result, the upper bracket 21 is fastened to the front and rear ends of the upper wall 12 of the inverter 11, which are spaced apart in the front-rear direction.

[0035] As shown in Figures 1 and 2, a fastening portion 22a is provided on the lateral wall portion 22A of the intermediate bracket 22, and the fastening portion 21C of the upper bracket 21 is fastened to the fastening portion 22a of the lateral wall portion 22A of the intermediate bracket 22 from the vertical direction by a bolt 20E.

[0036] As shown in Figure 2, the fastened portion 22a is located between the right end portion 22c of the intermediate bracket 22 (the right end portion 22c of the horizontal wall portion 22A) and the left end portion 22d of the intermediate bracket 22 (the left end portion 22d of the vertical wall portion 22B) in the vehicle width direction.

[0037] In this embodiment, the fastened portion 12A constitutes a first fastened portion, the fastened portion 12B constitutes a second fastened portion, and the fastened portion 22a constitutes a third fastened portion.

[0038] The right end 22c of the intermediate bracket 22 constitutes one end of the first bracket in the vehicle width direction, and the left end 22d of the intermediate bracket 22 constitutes the other end of the first bracket in the vehicle width direction.

[0039] The bolt 20C constitutes a first fastener, the bolt 20D constitutes a second fastener, and the bolt 20E constitutes a third fastener.

[0040] As shown in FIG. 1, a lower bracket 23 is connected to the lower wall 13 of the inverter 11, and the inverter 11 is connected to an upper wall 10A of the transmission case 10 by the lower bracket 23.

[0041] In this embodiment, the middle bracket 22 constitutes a first bracket, and the lower bracket 23 constitutes a second bracket.

[0042] As shown in Figure 6, the lower bracket 23 has a flat mounting portion 23A on which the inverter 11 is placed, and the mounting portion 23A has a pair of front fastening portions 23a and a pair of rear fastening portions 23b.

[0043] The front fastening portion 23a is provided at the front end of the placing portion 23A, and the rear fastening portion 23b is provided at the rear end of the placing portion 23A.

[0044] The front end of the lower wall 13 of the inverter 11 is fastened to the front fastening portion 23a by a bolt not shown, and the rear end of the lower wall 13 of the inverter 11 is fastened to the rear fastening portion 23b by a bolt not shown.

[0045] The lower bracket 23 is provided with a pair of front fastening portions 23c, a pair of rear fastening portions 23d, and a left fastening portion 23e.

[0046] The front fastening portion 23c is provided at the front end of the mounting portion 23A and protrudes downward from the mounting portion 23A (see FIG. 1).

[0047] The rear fastening portion 23d is provided at the rear end of the mounting portion 23A and protrudes downward from the mounting portion 23A (see FIG. 3). The left fastening portion 23e extends downward and to the left from the left end of the mounting portion 23A so as to be located to the left of the left wall 16 of the inverter 11 (see FIGS. 1 and 3).

[0048] 4, the left fastening portion 23e, the inverter 11, and the engine 2 are arranged in the vehicle width direction in this order: left fastening portion 23e, inverter 11, and engine 2. In this embodiment, the left fastening portion 23e constitutes a one-side fastening portion.

[0049] As shown in Figure 5, a pair of fastening portions 10a are provided on the upper wall 10A of the transmission case 10, and the rear fastening portion 23d of the lower bracket 23 is fastened to the fastening portions 10a from the vertical direction by a bolt 20F (see Figure 6).

[0050] 1 and 3, an intermediate bracket 24 is connected to the transmission case 10. As shown in Fig. 3, the intermediate bracket 24 includes a horizontal wall portion 24A and a vertical wall portion 24B. The intermediate bracket 24 in this embodiment constitutes a third bracket.

[0051] As shown in FIG. 5, the lateral wall portion 24A is provided with an upper fastening portion 24a, which is fastened to the top wall 10A of the transmission case 10 from above and below by a bolt 20G (see FIG. 3).

[0052] 3, the vertical wall portion 24B extends downward from the front end portion of the horizontal wall portion 24A along the front wall 10B of the transmission case 10. In other words, the vertical wall portion 24B extends in the up-and-down direction along the front wall 10B of the transmission case 10. In this embodiment, the front wall 10B forms a side wall of the transmission case.

[0053] As shown in Figure 2, the vertical wall portion 24B is provided with lower fastening portions 24b, 24c, and 24d (see Figure 3), and the lower fastening portions 24b, 24c, and 24d are connected horizontally to the front wall 10B of the transmission case 10 by bolts 20H.

[0054] As shown in FIG. 5, a pair of fastening portions 24e are provided on the lateral wall portion 24A of the intermediate bracket 24, and the front fastening portion 23c of the mounting portion 23A is fastened to the pair of fastening portions 24e from the vertical direction by a bolt 20I (see FIG. 6).

[0055] As shown in FIG. 5, a mount attachment portion 10C is provided at the left end of an upper wall 10A of the transmission case 10.

[0056] One end of a mount bracket 25 is fastened to the mount attachment portion 10C by a bolt 20J.

[0057] The other end of the mount bracket 25 is elastically supported on a left side member 27 by an elastic unit 26. The mount bracket 25 and the elastic unit 26 constitute a mount device 28. In this embodiment, the left side member 27 constitutes the vehicle body.

[0058] As a result, the transmission 3 is elastically supported on the left side member 27 via the mount device 28. On the other hand, the engine 2 is elastically supported on the right side member (not shown) by a mount device (not shown).

[0059] As shown in FIG. 5, the mount attachment portion 10C is provided with a fastening portion 10c, and the left fastening portion 23e of the lower bracket 23 is fastened to the fastening portion 10c from above and below by a bolt 20K (see FIG. 6).

[0060] In this way, the lower bracket 23 of this embodiment is connected to the upper wall 10A, intermediate bracket 24 and mount attachment portion 10C of the transmission case 10, and the inverter 11 is connected to the upper wall 10A, intermediate bracket 24 and mount attachment portion 10C of the transmission case 10 via the lower bracket 23.

[0061] As shown in FIG. 3, a component 30 that constitutes part of the transmission 3 is attached to the upper wall 10A of the transmission case 10, and the lateral wall portion 24A of the intermediate bracket 24 is located above the component 30.

[0062] That is, in this embodiment, a component 30 having a certain height is installed on the upper wall 10A of the transmission case 10. Therefore, if the front side of the lower bracket 23 interferes with the component 30 and cannot be directly connected to the transmission case 10, the lower bracket 23 can be connected to the intermediate bracket 24, and the inverter 11 can be connected to the transmission case 10 via the lower bracket 23 and the intermediate bracket 24.

[0063] The function of the part 30 will not be described in detail, but any part that constitutes a part of the transmission 3 may be used.

[0064] Next, the effect of the support structure for the inverter 11 of this embodiment will be described. According to the support structure of the inverter 11 of this embodiment, the inverter 11 is installed directly above the transmission case 10 with its longitudinal direction facing the fore-and-aft direction of the vehicle 1 and its short side facing the vehicle width direction, and is aligned with the engine 2 in the vehicle width direction.

[0065] The support structure for the inverter 11 also has an upper bracket 21 that is connected to the upper wall 12 of the inverter 11 and the cylinder head 5, and the inverter 11 is connected to the cylinder head 5 via the upper bracket 21.

[0066] As a result, the upper wall 12 of the inverter 11 can be supported by the upper bracket 21 while being reinforced by the upper bracket 21, and vibration of the upper wall 12 of the inverter 11 can be suppressed.

[0067] In addition, the inverter 11 is installed directly above the transmission case 10 with its longitudinal direction facing the fore-and-aft direction of the vehicle 1 and its lateral direction facing the vehicle width direction, so vibrations in the vehicle width direction are weaker than vibrations in the fore-and-aft direction.

[0068] According to the support structure for the inverter 11 of this embodiment, the inverter 11 and the engine 2 are installed side by side in the vehicle width direction, and the inverter 11 and the cylinder head 5 are connected by the upper bracket 21, thereby suppressing the inverter 11 from vibrating in the vehicle width direction.

[0069] In addition, by connecting the inverter 11 and the cylinder head 5 with the upper bracket 21, the vibration system consisting of the engine 2 and the vibration system consisting of the transmission 3 can be connected by the upper bracket 21, and the support rigidity of the inverter 11 with respect to the cylinder head 5 can be increased, and the vibration systems can be matched. This makes it possible to suppress vibration of the inverter 11 in the longitudinal direction and the vehicle width direction.

[0070] As described above, the support structure for the inverter 11 of this embodiment can increase the support rigidity of the inverter 11 installed directly above the transmission case 10, and can suppress vibration of the inverter 11.

[0071] In addition, the support structure for the inverter 11 in this embodiment has an intermediate bracket 22, which is connected to the upper wall 7b of the EGR piping section 7 and the left side wall 5a of the cylinder head 5 that faces the transmission 3 in the vehicle width direction.

[0072] The upper bracket 21 is connected to an intermediate bracket 22 , and the inverter 11 is connected to the cylinder head 5 via the upper bracket 21 and the intermediate bracket 22 .

[0073] This allows the intermediate bracket 22 to be connected to two surfaces: the upper wall 7b of the EGR piping section 7 and the left side wall 5a of the cylinder head 5 that is perpendicular to the upper wall 7b of the EGR piping section 7, thereby increasing the mounting strength of the intermediate bracket 22 to the cylinder head 5 and increasing the rigidity of the intermediate bracket 22.

[0074] Therefore, by connecting the upper bracket 21 to the highly rigid intermediate bracket 22, the support rigidity of the inverter 11 relative to the cylinder head 5 can be further increased, and vibration of the inverter 11 can be more effectively suppressed.

[0075] In addition, if the upper bracket 21 is directly connected to the EGR piping section 7, the shape of the upper bracket 21 may become complex, whereas by connecting the upper bracket 21 to the EGR piping section 7 and the cylinder head 5 via the intermediate bracket 22, the shape of the upper bracket 21 can be simplified.

[0076] Furthermore, according to the support structure for the inverter 11 of this embodiment, when the transmission 3 is viewed from above, the upper bracket 21 is formed in a triangular shape, and the inverter 11 is formed in a rectangular shape.

[0077] Fastening portions 21A, 21B, and 21C are provided at the three vertices of the triangular shape of upper bracket 21, and fastened portions 12A and 12B are provided at the front and rear ends of the diagonal corners of the rectangular shape of upper wall 12 of inverter 11. In addition, fastened portion 22a is provided on intermediate bracket 22.

[0078] Fastening portion 21A is fastened to fastened portion 12A by bolt 20C, and fastening portion 21B is fastened to fastened portion 12B by bolt 20D. In addition, fastening portion 21C is fastened to fastened portion 22a by bolt 20E.

[0079] The fastened portion 22a is provided between the right end portion 22c and the left end portion 22d of the intermediate bracket 22 in the vehicle width direction.

[0080] In this way, by fastening the fastening portion 21A at the front end and the fastening portion 21B at the rear end of the upper bracket 21 to the fastened portions 12A, 12B located diagonally at the front and rear ends of the inverter 11 with bolts 20C, 20D, the front and rear ends of the upper wall 12 of the inverter 11 can be supported by the upper bracket 21.

[0081] Therefore, the support rigidity of the inverter 11 relative to the upper bracket 21 can be further increased.

[0082] Furthermore, since the fastened portion 22a of the upper bracket 21 can be connected to the highly rigid intermediate bracket 22, the supporting rigidity of the upper bracket 21 relative to the intermediate bracket 22 can be further increased. Therefore, the supporting rigidity of the inverter 11 relative to the cylinder head 5 can be further increased.

[0083] Furthermore, since the fastened portion 22a is located between the right end portion 22c and the left end portion 22d of the intermediate bracket 22 in the vehicle width direction, when vibrations of the upper wall 12 of the inverter 11 are transmitted to the intermediate bracket 22 through the upper bracket 21, the vibrations can be dispersed from the intermediate bracket 22 to the upper wall 7b of the EGR piping portion 7 and the left side wall 5a of the cylinder head 5.

[0084] As a result, the support rigidity of the inverter 11 installed directly above the transmission case 10 can be further increased, and vibration of the inverter 11 can be suppressed more effectively.

[0085] Furthermore, according to the support structure for the inverter 11 of this embodiment, the cylinder head 5 has an EGR piping section 7 through which EGR gas flows, and the EGR piping section 7 is provided on the upper part of the cylinder head 5 so as to extend in the front-to-rear direction.

[0086] In addition, the intermediate bracket 22 is connected to the center of the upper wall 7b of the EGR pipe portion 7 in the front-rear direction.

[0087] Here, the EGR pipe section 7 has an EGR passage 7a therein and is therefore thin in thickness. Therefore, if the upper bracket 21 is connected only to the EGR pipe section 7, stress tends to be concentrated on the EGR pipe section 7.

[0088] According to the support structure for the inverter 11 of this embodiment, by connecting the intermediate bracket 22 to the upper wall 7b of the EGR piping section 7 and the left side wall 5a of the cylinder head 5, which has higher rigidity than the EGR piping section 7, the stress transmitted from the inverter 11 to the intermediate bracket 22 via the upper bracket 21 can be distributed by the intermediate bracket 22 to the upper wall 7b of the EGR piping section 7 and the left side wall 5a of the cylinder head 5.

[0089] Therefore, the EGR pipe section 7 can be protected while increasing the support rigidity of the inverter 11 relative to the cylinder head 5.

[0090] Furthermore, since the intermediate bracket 22 is connected to the longitudinal center of the upper wall 7b of the EGR piping section 7, stress is prevented from being concentrated at the front or rear end of the EGR piping section 7, and the stress applied to the EGR piping section 7 can be dispersed from the longitudinal center of the EGR piping section 7 to the entire EGR piping section 7, thereby more effectively protecting the EGR piping section 7.

[0091] In addition, according to the support structure of the inverter 11 in this embodiment, it has a lower bracket 23 that is connected to the upper wall 10A of the transmission case 10, and the inverter 11 is fastened to the front fastening portion 23a provided at the front end of the lower bracket 23 and the rear fastening portion 23b provided at the rear end of the lower bracket 23.

[0092] The lower bracket 23 is fastened to the transmission case 10 via a front fastening portion 23c provided at the front end of the lower bracket 23, a rear fastening portion 23d provided at the rear end of the lower bracket 23, and a left fastening portion 23e provided on the lower bracket 23 so as to be positioned on the left side of the inverter 11, and the left fastening portion 23e, the inverter 11 and the engine 2 are arranged in the vehicle width direction in the order of the left fastening portion 23e, the inverter 11 and the engine 2.

[0093] This allows the lower bracket 23 to which the inverter 11 is connected to be connected to the transmission case 10 over an area larger than the area of ​​the lower wall 13 of the inverter 11, thereby further increasing the supporting rigidity of the inverter 11 relative to the transmission case 10.

[0094] Furthermore, since the lower bracket 23 is connected to the transmission case 10 over a range longer than the vehicle width direction length of the lower wall 13 of the inverter 11, vibration of the inverter 11 in the vehicle width direction can be more effectively suppressed.

[0095] Furthermore, according to the support structure for the inverter 11 of this embodiment, the transmission case 10 has a mount attachment portion 10C.

[0096] The mount attachment portion 10C is connected to a mount bracket 25 that connects the transmission case 10 to a left side member 27, and the left fastening portion 23e is fastened to the mount attachment portion 10C.

[0097] The mount attachment portion 10C has high rigidity because the mount bracket 25 is connected to it by the bolt 20J. Therefore, by providing the left fastening portion 23e on the highly rigid mount attachment portion 10C and connecting the lower bracket 23 to the left fastening portion 23e, the attachment strength of the lower bracket 23 can be increased. This further increases the support rigidity of the inverter 11 relative to the transmission case 10.

[0098] Furthermore, the left fastening portion 23e, which is farthest from the engine 2 in the vehicle width direction, is installed on the highly rigid mount attachment portion 10C, and the lower bracket 23 is connected to the left fastening portion 23e, thereby increasing the attachment strength of the lower bracket 23 to the transmission case 10 in the vehicle width direction. This makes it possible to more effectively suppress vibration of the inverter 11 in the vehicle width direction.

[0099] Furthermore, the support structure for the inverter 11 of this embodiment has an intermediate bracket 24 connected to the transmission case 10 .

[0100] The front fastening portion 23c is fastened to the intermediate bracket 24, and the inverter 11 is connected to the transmission case 10 via the lower bracket 23 and the intermediate bracket 24.

[0101] As a result, even if the distance between the transmission case 10 and the inverter 11 is long, the inverter 11 can be connected to the transmission case 10 via the lower bracket 23 and the intermediate bracket 24.

[0102] Therefore, the connecting rigidity between the inverter 11 and the transmission case 10 can be increased by the lower bracket 23 and the intermediate bracket 24, and it is possible to prevent a decrease in the supporting rigidity of the inverter 11 relative to the transmission case 10. As a result, it is possible to more effectively suppress vibration of the inverter 11.

[0103] Furthermore, even when the component 30 is installed on the upper wall 10A of the transmission case 10, the inverter 11 can be installed directly above the transmission case 10 while preventing the inverter 11 from interfering with the component 30 using the lower bracket 23 and the intermediate bracket 24, thereby improving the freedom of installation of the inverter 11.

[0104] While an embodiment of the present invention has been disclosed, it will be apparent to one skilled in the art that modifications may be made thereto without departing from the scope of the present invention, and it is intended that all such modifications and equivalents be included in the following claims. [Explanation of symbols]

[0105] 1...vehicle, 2...engine (internal combustion engine), 3...transmission, 5a...left side wall (side wall of internal combustion engine), 7...EGR piping section, 7b...upper wall (upper wall of internal combustion engine), 10C...mount attachment section, 11...inverter (electrical component), 12A...fastened portion (first fastened portion), 12B...fastened portion (second fastened portion), 20C...bolt (first fastener), 20D...bolt (second fastener), 20E...bolt (third fastener), 21...upper bracket (support member), 21A...fastening portion (first fastening portion), 21B...fastening portion (second fastening portion), 21C...fastening Fastening portion (third fastening portion), 22...intermediate bracket (first bracket), 22a...fastened portion (third fastening portion), 22c...right end portion (one end portion of the first bracket in the vehicle width direction), 22d...left end portion (the other end portion of the first bracket in the vehicle width direction), 23...lower bracket (second bracket), 23a...front fastened portion, 23b...rear fastened portion, 23c...front fastening portion, 23d...rear fastening portion, 23e...left side fastening portion (one side fastening portion), 24...intermediate bracket (third bracket), 25...mount bracket, 27...left side member (vehicle body)

Claims

1. A support structure for electrical components mounted on a vehicle including an internal combustion engine and a transmission connected to the internal combustion engine so as to be aligned with the internal combustion engine in the width direction of the vehicle, the support structure being installed directly above a transmission case of the transmission with its longitudinal direction facing the front-rear direction of the vehicle and its short side facing the width direction of the vehicle, The electrical component and the internal combustion engine are installed side by side in the width direction of the vehicle, a first bracket connected to an upper wall of the internal combustion engine and a side wall of the internal combustion engine facing the transmission in a vehicle width direction; a support member connected to an upper wall of the electrical component and the first bracket, The electrical component support structure is characterized in that the electrical component is connected to the internal combustion engine via the support member and the first bracket.

2. When the transmission is viewed from above, the support member is formed in a triangular shape and the electrical component is formed in a rectangular shape; a first fastening portion, a second fastening portion, and a third fastening portion are provided at three vertices of a triangle of the support member; a first fastening portion and a second fastening portion are provided at a front end and a rear end, respectively, on a diagonal line of the rectangular shape of the electrical component; The first bracket is provided with a third fastening portion, the first fastening portion is fastened to the first fastened portion by a first fastener, the second fastening portion is fastened to the second fastened portion by a second fastener, the third fastening portion is fastened to the third fastened portion by a third fastener, 2. The support structure for electrical components according to claim 1, wherein the third fastening portion is provided between one end of the first bracket in the vehicle width direction and the other end of the first bracket in the vehicle width direction.

3. The internal combustion engine has an EGR piping section through which EGR gas flows, the EGR piping portion is provided on an upper portion of the internal combustion engine so as to extend in the front-rear direction of the vehicle, an upper wall of the EGR piping portion constitutes an upper wall of the internal combustion engine, 3. The support structure for electrical components according to claim 1, wherein the first bracket is connected to a center portion of an upper wall of the EGR pipe portion in the longitudinal direction of the vehicle.

4. A second bracket connected to the upper wall of the transmission case, the electrical component is fastened to a front fastening portion provided at a front end of the second bracket and a rear fastening portion provided at a rear end of the second bracket, the second bracket is fastened to the transmission case via a front fastening portion provided at a front end of the second bracket, a rear fastening portion provided at a rear end of the second bracket, and a one-side fastening portion provided on the second bracket so as to be located on one side of the electrical component in the vehicle width direction, 4. The support structure for an electrical component according to claim 1, wherein the one-side fastening portion, the electrical component, and the internal combustion engine are arranged in the width direction of the vehicle in the following order: one-side fastening portion, the electrical component, and the internal combustion engine.

5. A mount attachment portion is provided on the upper wall of the transmission case, the mount attachment portion is connected to a mount bracket that connects the transmission case to a vehicle body, 5. The support structure for an electrical component according to claim 4, wherein the one-side fastening portion is fastened to the mount attachment portion.

6. A third bracket connected to the transmission case, 6. The support structure for electrical components according to claim 4 or 5, wherein the front fastening portion is fastened to the third bracket, and the electrical component is connected to the transmission case via the second bracket and the third bracket.

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