Electrical component mounting structure

Abstract

Electrical component mounting structure, comprising: a bulkhead (3) extending in a vehicle transverse direction; a cowl (4) connected to an upper part of the bulkhead (3) and extending in the transverse direction of the vehicle; a side part (5) connected to end portions of the bulkhead (3) and the cowl (4) in the vehicle transverse direction and extending in a front-rear direction of the vehicle and a vertical vehicle direction; and a mounting bracket (20) for attaching an electrical component (11, 12) to a vehicle body (2), characterized in that the mounting bracket (20) comprises: a support part (22) to which the electrical component (11, 12) is attached; a front leg part (24) extending forward from the support part (22) and being attached to the cowl (4); an upper leg part (25) extending upwardly from the support part (22) and being attached to the side part (5); and a lower leg part (26) extending downwards from the support part (22) and being attached to the side part (5), wherein an upper end (25C) of the upper leg part (25) is arranged above an upper end (4C) of the cowl (4), and an upper end (26C) of the lower leg part (26) is arranged below a lower end (4D) of the cowl (4).

Description

TECHNICAL FIELD

[0001] The present invention relates to an electrical component mounting structure. TECHNICAL BACKGROUND

[0002] Electrical components, such as a junction box and a control device, are mounted on a vehicle body of a vehicle, such as an automobile. A conventional mounting structure for electrical components of this type is described in JP 2008-100599 A. The electrical component mounting structure described in JP 2008-100599 A includes a corner stiffener mounted at the level of a firewall and a hinge pillar to ensure body rigidity, and a vehicle component mounted near the upper ends of the firewall and the corner stiffener, which is secured to both the firewall and the corner stiffener within the passenger compartment.

[0003] According to the technical teaching described in JP 2008 - 100 599 A, it is possible to both improve the attachment of the vehicle component and ensure the layout characteristics of the vehicle component for a relatively limited space.

[0004] JP 2008 - 100 599 A discloses the generic term of the independent claim.

[0005] JP 2017-13617 A discloses a mounting structure for an on-board element installed on a vehicle. The on-board element comprises: a first connecting part connected to a firewall of the vehicle; and a second connecting part connected to a side wall of the vehicle and connected to the firewall and the side wall with a gap formed between the firewall and the first connecting part.

[0006] JP 2011-84154 A discloses a structure for installing a control device 4, which is required only for a specific vehicle specification, on the vehicle body. A configuration is adopted in which the control device is installed on a reinforcement member 3 detachably attached to a bulkhead 1 in the front part of the vehicle or to one of the side panels 2 arranged on the left and right sides thereof. The reinforcement member 3 is a member attached to the bulkhead 1 and the side panel 2 and reinforces a corner portion where the two panels 1, 2 are joined. OVERVIEW OF THE INVENTION PROBLEMS TO BE SOLVED BY THE INVENTION

[0007] The prior art described in JP 2008 - 100 599 A has the problem that due to the corner reinforcement intended to ensure the body rigidity, installation space for the electrical components (vehicle components) becomes limited and the layout characteristics of the electrical component deteriorate.

[0008] The present invention has been implemented in consideration of the above-described circumstances, and an object of the present invention is to provide an electrical component mounting structure that can ensure the body rigidity without causing the layout characteristics of the electrical component to deteriorate. MEANS FOR SOLVING THE TASK

[0009] The present invention relates to an electrical component mounting structure comprising: a firewall extending in a vehicle transverse direction, a cowl connected to an upper part of the firewall and extending in the vehicle transverse direction, a side part connected to end portions of the firewall and the cowl in the vehicle transverse direction and extending in a front-rear direction of the vehicle and a vehicle vertical direction, and a mounting bracket for mounting an electrical component on a vehicle body, characterized in that the mounting bracket comprises: a support part to which the electrical component is attached, a front leg part extending frontward from the support part and attached to the cowl, an upper leg part extending upward from the support part and attached to the side part, and a lower leg part,which extends downwards from the support part and is fastened to the side part, wherein an upper end of the upper leg part is arranged above an upper end of the cowl, and an upper end of the lower leg part is arranged below a lower end of the cowl., EFFECT OF THE INVENTION

[0010] According to the present invention described above, it is possible to provide an electrical component mounting structure that enables the body rigidity to be ensured without deteriorating the layout characteristics of the electrical component. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a rear view of an instrument panel of a vehicle having an electrical component mounting structure according to an embodiment of the present invention. Fig. 2 is a rear view of a cowl of the vehicle having the electrical component mounting structure according to the embodiment of the present invention. Fig. 3 is a rear view of an electric component of the vehicle having the electric component mounting structure according to the embodiment of the present invention. Fig. 4 is a front view of the electrical component of the vehicle having the electrical component mounting structure according to the embodiment of the present invention. Fig. 5 is a cross-sectional view in an arrow direction VV shown in Fig. 1, of the vehicle with the electrical component mounting structure. Fig. 6 is a left side view of the electrical component and the mounting bracket of the vehicle having the electrical component mounting structure according to the embodiment of the present invention. Fig. 7 is a left side view of the main bracket of the mounting bracket of the vehicle having the electrical component mounting structure according to the embodiment of the present invention. Fig. 8 is a left side view of the mounting bracket of the vehicle having the electrical component mounting structure according to the embodiment of the present invention. DESCRIPTION OF AN EMBODIMENT

[0011] The electrical component mounting structure according to an embodiment of the present invention comprises: a firewall extending in a vehicle transverse direction, a cowl connected to an upper part of the firewall and extending in the vehicle transverse direction, a side part connected to end portions of the firewall and the cowl in the vehicle transverse direction and extending in a front-rear direction of the vehicle and a vehicle vertical direction, and a mounting bracket for mounting an electrical component on a vehicle body, characterized in that the mounting bracket comprises: a support part to which the electrical component is attached, a front leg part extending frontward from the support part and attached to the cowl, an upper leg part extending upward from the support part and attached to the side part, and a lower leg part,which extends downward from the support member and is fixed to the side member, with an upper end of the upper leg member being positioned above an upper end of the cowl, and an upper end of the lower leg member being positioned below a lower end of the cowl. Accordingly, the electrical component mounting structure according to the embodiment of the present invention makes it possible to ensure body rigidity without deteriorating the layout characteristics of the electrical component. EXAMPLE OF IMPLEMENTATION

[0012] Hereinafter, the electrical component mounting structure according to an embodiment of the present invention will be described with reference to the accompanying drawings.

[0013] In Fig. 1 to Fig. 8, the vertical direction ("top-bottom"), the longitudinal direction or front-rear direction ("front-rear") and the left-right direction or transverse direction ("left-right") refer to the vertical direction, the front-rear direction and the left-right direction when the electrical component mounting structure is installed in the vehicle, and a direction perpendicular to the front-rear direction of the vehicle is the left-right direction, and a height direction of the electrical component mounting structure is the vertical direction.

[0014] Fig. 1 to Fig. 8 are drawings showing the electrical component mounting structure according to the embodiment of the present invention.

[0015] First, a design is described. In Fig. 1 and Fig. 5, a vehicle 1 has a vehicle body 2. The vehicle body 2 has a firewall 3, a cowl 4, a side panel 5, and a steering support element 6 on a front side. The firewall 3 extends in a vehicle transverse direction between an engine compartment (not shown) and a passenger compartment such that the engine compartment is separated from the passenger compartment. The firewall extends upward from a front edge of a floor surface of the passenger compartment.

[0016] The cowl 4 is connected to an upper portion of the bulkhead 3 and extends in the vehicle transverse direction. The side member 5 extends in the front-rear direction of the vehicle and the vehicle vertical direction. The side members 5 are provided in pairs on the left and right sides of a front side of the vehicle 1, respectively, and are connected to end portions in the vehicle transverse direction of the bulkhead 3 and the cowl 4.

[0017] The steering support element 6 is arranged at the rear of the cowl 4 and extends in the transverse direction of the vehicle. The steering support element 6 supports a pivot pin of a steering wheel (not shown). The end sections of the steering support element 6 are each connected to a side part 5.

[0018] In Fig. 2 and Fig. 3, the vehicle 1 includes the first controller 11, the second controller 12, and a mounting bracket 20. The first controller 11 and the second controller 12 are each, for example, an electrical junction box or an electronic control unit (ECU) that electrically controls the drive of an engine of the vehicle 1 (not shown in the figures), or the like.

[0019] The first controller 11 and the second controller 12 are cuboid-shaped, with the cuboid shape being formed by two long sides and one short side. The second controller 12 is smaller than the first controller 11, being 1 / 4 the size of the first controller 11. The first controller 11 is an electronic component and forms a first electronic component in the present invention. The second controller 12 forms a second electronic component in the present invention.

[0020] In Fig. 3, Fig. 4 and Fig. 5, the mounting bracket 20 has a main bracket 21 and an auxiliary bracket 27. The main bracket 21, together with the auxiliary bracket 27, holds the first controller 11. The main bracket 21 is fixed to the cowl 4 and the side part 5 of the vehicle body 2.

[0021] The first controller 11 and the mounting bracket 20 are arranged in the front-rear direction of the vehicle behind the cowl 4 and in front of the steering support member 6 (see Fig. 5).

[0022] In Fig. 1 and Fig. 5, the vehicle 1 has a dashboard 7 on which instruments (not shown) are arranged. The dashboard 7 is arranged behind the first controller 11 and the steering support element 6 and covers the first controller 11 and the steering support element 6 from behind and above.

[0023] In Fig. 3, Fig. 4 and Fig. 5, the main bracket 21 of the mounting bracket 20 includes: a support member 22 to which the first controller 11 is attached, a front leg member 24 extending frontward from the support member 22, an upper leg member 25 extending upward from the support member 22, and a lower leg member 26 extending downward from the support member 22.

[0024] In Fig. 7, the support member 22 is formed as a whole from a rectangular sheet metal and supports the first controller 11. A rectangular opening 23 is formed in a central portion of the support member 22 for weight reduction and heat dissipation or the like of the first controller 11. The front leg member 24, the upper leg member 25, and the lower leg member 26 are connected to the vehicle body 2 using bolts 30.

[0025] In Fig. 6, the cowl 4 has a front attachment point 4A to which the front leg part 24 is connected. The side part 5 has an upper attachment point 5A to which the upper leg part 25 is connected, and a lower attachment point 5B to which the lower leg part 26 is connected. The front attachment point 4A, the upper attachment point 5A, and the lower attachment point 5B are areas where the front leg part 24, the upper leg part 25, and the lower leg part 26 are fixed by tightening the screws 30, and have screw holes (not shown) through which the screws 30 are tightened.

[0026] In Fig. 5, the lower attachment point 5B of the side member 5 is located behind the front attachment point 4A of the cowl 4. The upper attachment point 5A of the side member 5 is located above the steering support member 6 and behind the lower attachment point 5B. In other words, the lower attachment point 5B is located behind the front attachment point 4A in the front-rear direction of the vehicle. The upper attachment point 5A is located behind the lower attachment point 5B.

[0027] The upper leg portion 25 of the mounting bracket 20 extends obliquely upward and rearward toward an upper portion in a side view of the vehicle. Accordingly, the upper leg portion 25 extends upward and rearward from an upper portion of the support portion 22. On the other hand, the lower leg portion 26 extends straight downward from a lower portion of the support portion 22 in a side view of the vehicle. The front leg portion 24 extends forward from an upper portion of a front end portion of the support portion 22 in a side view of the vehicle.

[0028] In Fig. 8, the front leg part 24 of the mounting bracket 20 is arranged at a position closer to the upper leg part 25 in a vehicle vertical direction than to the lower leg part 26. In other words, a distance in the vehicle vertical direction between the front leg part 24 and the upper leg part 25 is smaller than a distance between the front leg part 24 and the lower leg part 26.

[0029] In Fig. 3 and Fig. 5, the front leg part 24 of the mounting bracket 20 is located above the steering support member 6 in the vertical vehicle direction. The steering support member 6 is arranged behind the first controller 11 and the second controller 12. It should be noted that the steering support member 6 in Fig. 3 is represented by a dashed line to fully show the first controller 11 or the like.

[0030] In Fig. 3 and Fig. 4, the support part 22 of the mounting bracket 20 is spaced apart from the side part 5 in the vehicle transverse direction. In other words, the upper leg part 25 and the lower leg part 26 of the mounting bracket 20 extend from the support part 22 to the right toward the side part 5 in the vehicle transverse direction, such that a space is formed between the support part 22 and the side part 5 to the left.

[0031] The front leg portion 24 of the mounting bracket 20 extends to the right in the vehicle transverse direction from the support portion 22 along the cowl 4 such that a space is formed between the support portion 22 and the cowl 4 on the front side of the support portion 22. As a result, the support portion 22 is spaced apart from the cowl 4 in a front-rear direction of the vehicle.

[0032] The cowl 4 has a slanted portion 4B that extends obliquely forward in the vehicle width direction from the side panel 5, gradually moving away from a position closest to the first controller 11. The front attachment point 4A is located at the slanted portion 4B. The front leg portion 24 is located between the first controller 11 and the cowl 4 at a distance from the first controller 11 and the cowl 4 and extends along the slanted portion 4B.

[0033] In Fig. 3, Fig. 4 and Fig. 6, the upper leg part 25 includes an upper connecting part 25A extending from the support part 22 to the side part 5, and an upper attachment part 25B extending from the upper connecting part 25A substantially parallel to the side part 5 and connected to the upper attachment point 5A. The upper attachment part 25B is a region at a distal end of the upper leg part 25 in the direction in which it extends. The upper connecting part 25A is a region between the upper attachment part 25B of the upper leg part 25 and the support part 22.

[0034] The lower leg part 26 includes a lower connecting part 26A extending from the support part 22 to the side part 5, and a lower attachment part 26B extending from the lower connecting part 26A substantially parallel to the side part 5 and connected to the lower attachment point 5B. The lower attachment part 26B is a region at a distal end of the lower leg part 26 in the direction in which it extends. The lower connecting part 26A is a region of the lower leg part 26 between the lower attachment part 26B and the support part 22.

[0035] The front leg part 24 includes a front connecting part 24A extending from the support part 22 to the cowl 4, and a front attachment part 24B extending from the front connecting part 24A further along the cowl 4 and connected to the front attachment point 4A. The front attachment part 24B is a portion at a distal end of the front leg part 24 in the direction in which it extends. The front connecting part 24A is a portion of the front leg part 24 between the front attachment part 24B and the support part 22.

[0036] In Fig. 3, a long hole 24C extending in the vehicle transverse direction, which is the direction in which the front attachment part 24B extends, is formed in the front attachment part 24B, and the fastening screw 30 is inserted into the long hole 24C. When the long hole 24C is formed in the front attachment part 24B, it is possible to adjust a fixing position of the front attachment part 24B to the cowl 4.

[0037] The mounting bracket 20 has an upper curved part 22A between the support part 22 and the upper connecting part 25A. The upper curved part 22A is curved to the right between the support part 22 and the upper connecting part 25A. A bend of the upper curved part 22A extends in the vehicle vertical direction. In the present embodiment, the bend forming the upper curved part 22A as a whole extends in the vehicle vertical direction, slanting rearward and downward. As described above, the upper leg part 25 extends rearward and upward from an upper part of the support part 22 in a side view of the vehicle, and thus the rearward and downward inclined upper curved part 22A is perpendicular to the direction in which the upper leg part 25 extends.

[0038] The mounting bracket 20 has a lower curved portion 22B between the support portion 22 and the lower connecting portion 26A. The lower curved portion 22B is curved to the right between the support portion 22 and the lower connecting portion 26A. A bend of the lower curved portion 22B extends in the front-rear direction of the vehicle. Since the lower leg portion 26 extends directly straight downward from a lower portion of the support portion 22 in a side view of the vehicle, the lower curved portion 22B extending in the front-rear direction of the vehicle is perpendicular to the direction in which the lower leg portion 26 extends.

[0039] The mounting bracket 20 has a front curved portion 22C between the support portion 22 and the front connecting portion 24A. The front curved portion 22C is curved to the left between the support portion 22 and the front connecting portion 24A. A bend in the front curved portion 22C extends in the vertical vehicle direction.

[0040] Thus, in the present embodiment, the upper curved part 22A and the lower curved part 22B are curved to the right, and the front curved part 22C is curved to the left. In other words, when the upper curved part 22A and the lower curved part 22B are curved to the right from the support part 22, the upper leg part 25 and the lower leg part 26 extend in a direction (rightward) in which the upper leg part 25 and the lower leg part 26 are moved away from the first controller 11 in the vehicle transverse direction.

[0041] On the other hand, when the front curved part 22C of the support part 22 is curved to the left, the front leg part 24 extends in a direction (to the left) in which the front leg part 24 approaches the first controller in the vehicle transverse direction. As shown in Fig. 7, when viewing the main bracket 21 of the attachment bracket 20 from the left side, the upper curved part 22A and the lower curved part 22B are curved outward to form a "folding hill", and the front part 22C is curved inward to form a "folding valley".

[0042] Fig. 4 shows a front view of the vehicle of the first controller 11 and the support member 22. The first controller 11 and the support member 22 are arranged in an oblique position such that their longitudinal directions in the front-rear direction of the vehicle approach the rear of the side member 5. The longitudinal directions of the first controller 11 and the support member 22 refer to the directions along the long sides of the first controller 11 and the support member 22 in a front view. The front attachment point 4A is positioned on a side opposite the side member 5 in the vehicle transverse direction with respect to the support member 22.

[0043] In Fig. 7, an upper end 25C of the upper leg part 25 is located above an upper end 4C of the cowl 4. An upper end 26C of the lower leg part 26 is located below a lower end 4D of the cowl 4. The position of the upper end 26C of the lower leg part 26 is the same position as a position of a base part of the lower leg part 26. The lower curved part 22B is provided at the base part of the lower leg part 26 as described above. The lower end 4D of the cowl 4 is a position where the cowl 4 is connected to the dash panel 3.

[0044] In Fig. 3, Fig. 4 and Fig. 6, the auxiliary bracket 27 of the attachment bracket 20 is attached to the support part 22, with the controller 11 being sandwiched and held between the support part 22 of the main bracket 21 and the auxiliary bracket 27. The second controller 12 is attached to the auxiliary bracket 27. The second controller 12 is attached to a surface of a side of the auxiliary bracket 27 opposite the first controller 11. Therefore, the auxiliary bracket 27 is sandwiched between the first controller 11 and the second controller 12.

[0045] In Fig. 6, the auxiliary bracket 27 is connected to the support part 22 at a position between the front leg part 24, the upper leg part 25, and the lower leg part 26. Specifically, the auxiliary bracket 27 is connected to three locations: a vicinity of a base part of the front leg part 24 of the support part 22, a vicinity of a base part of the upper leg part 25 of the support part 22, and a rear end of the support part 22. Each of these connection areas is part of the support part 22 and is a position between the front leg part 24, the upper leg part 25, and the lower leg part 26 of the support part 22.

[0046] The side member 5 has a flange portion 5D formed at an edge 5C and a corner portion 5E curved to protrude from the flange portion 5D. The upper leg portion 25 is fixed near the corner portion 5E. In other words, the above-mentioned upper attachment point 5A is provided in the corner portion 5E of the side member 5.

[0047] The flange part 5D is a flat area so that the side part 5 can be joined to the other (not shown) element in one plane, and is formed along the entire edge 5C of the side part 5. The flange part 5D is curved so that it is bent on a rear side in Fig.6 is bent and that the flange part 5D has high rigidity. A region of the side part 5 including at least the upper attachment point 5A is curved to be located inside (in the passenger compartment) of the flange part 5D in the vehicle width direction. The corner part 5E of the side part 5 is a region where the region including the upper attachment point 5A starts to protrude inward (into the passenger compartment) from the flat flange part 5D in the vehicle width direction and to bulge. In the present embodiment, the corner part 5E is curved to protrude at a right angle from the flange part 5D. Therefore, the corner part 5E of the side part 5 is a region in which a surface forming the flange part 5D and a surface perpendicular to the flange part 5D are curved to intersect each other in an L-shape at a right angle and thus has high rigidity.

[0048] As described above, in the electronic component mounting structure of the present embodiment, a mounting bracket 20 includes the support member 22 to which the first controller 11 is mounted, the front leg member 24 extending forward from the support member 22 and being fixed to the cowl 4, the upper leg member 25 extending upward from the support member 22 and being fixed to the side member 5, and the lower leg member 26 extending downward from the support member 22 and being fixed to the side member 5. The upper end 25C of the upper leg member 25 is disposed above the upper end 4C of the cowl 4, and the upper end 26C of the lower leg member 26 is disposed below the lower end 4D of the cowl 4.

[0049] Thus, when the cowl 4 and the side member 5 constituting the vehicle body 2 are connected by means of the mounting bracket 20, the mounting bracket 20 also functions as a reinforcing member, and thus, it is possible to ensure the rigidity of the vehicle body 2. Furthermore, since the mounting bracket 20 can ensure the rigidity of the cowl 4 and the side member 5 without providing a reinforcing member such as the corner reinforcement, it is possible to prevent an interfering reinforcing member from deteriorating the layout characteristics of the first controller 11. As a result, it is possible to ensure the rigidity of the vehicle body 2 without deteriorating the layout characteristics of the first controller 11.

[0050] Furthermore, in the present embodiment, when the first controller 11 vibrates while the vehicle 1 is traveling, since the upper leg part 25 and the lower leg part 26 of the mounting bracket 20 are fixed to the side part 5 at the height of the cowl 4 in the vehicle vertical direction, the vibration is transmitted to the cowl 4 via the front leg part 24, the upper leg part 25, and the lower leg part 26 of the mounting bracket 20, and thus the direct transmission of the vibration of the first controller 11 to the cowl 4 can be prevented and vibration of the cowl 4 constituting the vehicle body 2 can be counteracted.

[0051] In the electronic component mounting structure of the present embodiment, the auxiliary bracket 27 of the mounting bracket 20 is fixed to the support part 22, and the controller 11 is embedded and held between the support part 22 of the main bracket 21 and the auxiliary bracket 27.

[0052] Since the first controller 11 is formed by being embedded between the support part 22 and the auxiliary bracket 27 in this way, it is possible to increase the rigidity of the support part 22 of the mounting bracket 20 and to improve the rigidity of the mounting bracket 20 as a whole.

[0053] In the electric component mounting structure of the present embodiment, the second controller 12 is fixed to the auxiliary bracket 27, and the auxiliary bracket 27 is sandwiched between the first controller 11 and the second controller 12.

[0054] By fixing the second controller 12 to the auxiliary bracket 27 and sandwiching the auxiliary bracket 27 between the first controller 11 and the second controller 12 in this way, it is possible to increase the rigidity of the auxiliary bracket 27 of the mounting bracket 20 and improve the rigidity of the mounting bracket 20 as a whole.

[0055] In the electrical component mounting structure of the present embodiment, the auxiliary bracket 27 is connected to the support part 22 at a position between the front leg part 24, the upper leg part 25 and the lower leg part 26.

[0056] Since the auxiliary bracket 27 is connected to the support part 22, which is subjected to stress concentration in the area between the front leg part 24, the upper leg part 25 and the lower leg part 26, it is possible to increase the rigidity of the support part 22 of the attachment bracket 20.

[0057] In the electronic component mounting structure of the present embodiment, the side part 5 has the flange part 5D formed at the edge 5C and the corner part 5E curved to protrude from the flange part 5D, and the upper leg part 25 is fixed in a vicinity of the corner part 5E.

[0058] By fixing the upper leg portion 25 to the corner portion 5E projecting from the flange portion 5D of the side portion 5, it is possible to increase the rigidity of the mounting bracket 20.

[0059] While an exemplary embodiment of the present invention has been disclosed above, it will be apparent to those skilled in the art that modifications may be made within the scope of the present invention. All such modifications and equivalents are intended to be included within the scope of the following claims. LIST OF REFERENCE SYMBOLS

[0060] 1 ... vehicle, 2 ... vehicle body, 3 ... firewall, 4 ... cowl, 4C ... upper end, 4D ... lower end, 5 ... side part, 5C ... edge, 5D ... flange part, 5E ... corner part, 11 ... first controller (electrical component, first electrical component), 12 ... second controller (second electrical component), 20 ... attachment bracket, 21 ... main bracket, 22 ... carrier part, 24 ... front leg part, 25 ... upper leg part, 25C ... upper end, 26 ... lower leg part, 26C ... upper end, 27 ... auxiliary bracket

Claims

[1] An electrical component mounting structure comprising: a bulkhead (3) extending in a vehicle transverse direction; a cowl (4) connected to an upper part of the bulkhead (3) and extending in the transverse direction of the vehicle; a side part (5) connected to end portions of the bulkhead (3) and the cowl (4) in the vehicle transverse direction and extending in a front-rear direction of the vehicle and a vertical vehicle direction; and a mounting bracket (20) for attaching an electrical component (11, 12) to a vehicle body (2), characterized by that the mounting bracket (20) has: a support part (22) to which the electrical component (11, 12) is attached; a front leg part (24) extending forward from the support part (22) and being attached to the cowl (4); an upper leg part (25) extending upwardly from the support part (22) and being attached to the side part (5); and a lower leg part (26) extending downwards from the support part (22) and being attached to the side part (5), wherein an upper end (25C) of the upper leg part (25) is arranged above an upper end (4C) of the cowl (4), and an upper end (26C) of the lower leg part (26) is arranged below a lower end (4D) of the cowl (4). [2] An electrical component mounting structure according to claim 1, characterized by that the mounting bracket (20) has an additional bracket (27) which is fastened to the carrier part (22) in such a way that the electrical component (11) is embedded and held between the carrier part (22) and the additional bracket (27). [3] An electrical component mounting structure according to claim 2, characterized bythat, when the electrical component is referred to as the first electrical component (11), a second electrical component (12) is attached to the additional holder (27) and the additional holder (27) is embedded between the first electrical component (11) and the second electrical component (12). [4] An electrical component mounting structure according to claim 2 or 3, characterized by that the additional holder (27) is connected to the support part (22) at a position between the front leg part (24), the upper leg part (25) and the lower leg part (26). [5] An electrical component mounting structure according to any one of claims 1 to 4, characterized by , that the side part (5) has a flange part (5D) formed on one edge and a corner part (5E) curved to protrude from the flange part (5D), and the upper leg part (25) is attached to the corner part (5E).

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