Protection structure

Abstract

The invention aims to effectively prevent interference on a device needing to be protected when a vehicle is collided. Comprises: a lower bracket (100) having a fixed pedestal (110) protruding to the upper side of the vehicle; and a protection bracket (200) which is placed on the fixed pedestal (110) of the lower bracket (100) in a state of being separated from the lower bracket (100), and covers the protruding part (CN), which is a part to be protected, as a wall surface in the vertical direction so as to prevent the protruding part (CN) from being interfered by a collision object. Wherein the protection bracket (200) is fixed on a fixed pedestal (23) arranged on an air compressor (20) with a protruding part (CN) on the vehicle upper side of the protection bracket (200), and is fixed on a fixed pedestal (110) of a lower bracket (100) on the vehicle lower side of the protection bracket (200); the lower bracket (100) and the protective bracket (200) are disposed between an adjacent member (AD) disposed adjacent to the protective bracket (200) and the protruding portion (CN).

Description

Technical Field

[0001] The present invention relates to a protective structure. Background Art

[0002] In recent years, as electric vehicles have become more common, hybrid vehicles, electric vehicles, and the like may have an inverter unit installed on the front of the vehicle to convert a DC voltage into an AC voltage in order to drive the electric motor.

[0003] For example, the inverter generates a high voltage required for the vehicle to run, and when the vehicle is deformed or disconnected due to a head-on collision or the like, a sudden abnormal reaction may occur.

[0004] Therefore, when a vehicle crashes, a structure is required to reduce the impact on devices requiring high voltage, such as an inverter and an air compressor.

[0005] As a technology to address the above-mentioned issues, the following technology is disclosed: the gap between the air compressor as an auxiliary machine and the bracket is narrowest near the upper mounting portion, so that when the vehicle collides with the front, the upper mounting portion with lower rigidity will be deformed, and the air compressor will rotate relative to the bracket with the lower mounting portion with higher rigidity as a fulcrum; by making the bracket and the air compressor abut at the narrowest part of the gap between the air compressor and the bracket, the air compressor can be properly suppressed from falling off due to the impact during a frontal collision of the vehicle (for example, refer to patent document 1).

[0006] Prior art literature

[0007] Patent Literature

[0008] Patent Document 1: Japanese Patent No. 6090185 Summary of the invention

[0009] Problems to be solved by the invention

[0010] According to the technology described in Patent Document 1, when a vehicle collides head-on, the collision energy is concentrated on one point of the upper mounting portion having low rigidity, thereby damaging the upper mounting portion and preventing the air compressor, which is a device to be protected, from falling off.

[0011] However, the technology described in Patent Document 1 has a problem in that, when a vehicle collides, adjacently disposed components may interfere with a device to be protected.

[0012] Therefore, the present invention has been made in view of the above-mentioned problems, and an object of the present invention is to provide a protection structure that effectively prevents interference with a device to be protected when a vehicle collides.

[0013] Technical solutions for solving technical problems

[0014] Mode 1: One or more embodiments of the present invention propose a protection structure, comprising: a first bracket having a first fixing portion protruding toward the upper side of a vehicle; a second bracket, which is placed on the first fixing portion of the first bracket in a state separated from the first bracket, and covers the protection object portion as a wall surface in the upper and lower directions of the vehicle to prevent the protection object portion from being interfered with by a collision object. The second bracket is fixed to a second fixing portion provided on a protection object component having a protection object portion on the upper side of the second bracket, and is fixed to the first fixing portion of the first bracket on the lower side of the second bracket; the first bracket and the second bracket are arranged between an adjacent component arranged adjacent to the second bracket and the protection object portion.

[0015] Method 2: One or more embodiments of the present invention provide a protective structure, wherein the distance between the upper side surface of the first bracket and the upper side surface of the first fixing portion in the vehicle up-down direction is greater than the distance between the upper side surface of the first fixing portion and the center of the bolt hole of the second fixing portion in the vehicle up-down direction.

[0016] Mode 3: One or more embodiments of the present invention provide a protection structure, wherein, in the second bracket, a fixing direction for the protection target component and a fixing direction for the first bracket face different directions.

[0017] Effects of the Invention

[0018] According to one or more embodiments of the present invention, when a vehicle collides, interference with a device that needs to be protected can be effectively prevented. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a perspective view of a vehicle to which a protective structure according to an embodiment of the present invention is applied, as seen from above;

[0020] Figure 2(a)-Figure 2(c) 2 is a three-sided view showing a protective structure according to an embodiment of the present invention, wherein FIG. 2(a) is a plan view seen from the upper side, FIG. 2(b) is a front view, and FIG. 2(c) is a side view seen from the right side;

[0021] Figure 3 is a perspective view of the protective structure of an embodiment of the present invention viewed from the upper rear side;

[0022] Figure 4(a) to Figure 4(c) The side views are side views showing the action of the protective structure according to the embodiment of the present invention when a collision occurs in the order of (a) to (c) in time sequence.

[0023] Explanation of symbols

[0024] 1: Protective structure

[0025] 10: Base

[0026] 20: Air compressor

[0027] 23: Fixed pedestal

[0028] 100: Lower bracket

[0029] 110: Fixed base

[0030] 200: Protective bracket

[0031] 300: Front bracket

[0032] AD: Adjacent components

[0033] B21: Bolt

[0034] B22: Bolt

[0035] CN: protrusion

[0036] FL: Frame Department

[0037] SB: Sub-Bracket

[0038] V: Vehicle. DETAILED DESCRIPTION

[0039] Combine the following Figure 1 to Figure 4(c) , the protection structure 1 of this embodiment is described. It should be noted that, Figure 2(a)-Figure 2(c) As shown, the arrow "front" appropriately shown in the drawings indicates the front side of the protective structure 1, the arrow "up" indicates the upper side when the protective structure 1 is viewed from the front side, and the arrow "left" indicates the left side when the protective structure 1 is viewed from the front side. In addition, in the following description, when the up-down, front-back, and left-right directions are used for description, unless otherwise specified, they all indicate the up-down direction when the protective structure 1 is viewed from the front side, the front-back direction with the front side of the protective structure 1 as the front, and the left-right direction when the protective structure 1 is viewed from the front side.

[0040] <Implementation Method>

[0041] Use below Figures 1 to 3 The configuration of the protection structure 1 according to the present embodiment will be described.

[0042] <About the front structure S>

[0043] In vehicle V, if Figure 1 As shown, a vehicle body front structure S is formed on the vehicle front side of a cabin CA as a vehicle interior in which passengers ride. The vehicle body front structure S is provided on the vehicle front side of the footrest portion TB. The vehicle body front structure S includes a frame portion FL and a drive portion DA.

[0044] (About the frame FL)

[0045] Frame part FL Figure 1 As shown in the dotted part of , in the vehicle body front structure S, they are connected in a cross-shaped pattern in the vehicle width direction and the vehicle front-rear direction. The frame part FL is the skeleton of the vehicle V and is composed of a strong metal having a substantially rectangular closed cross-sectional shape.

[0046] When a collision occurs, the frame portion FL absorbs and disperses the impact generated by the collision, thereby protecting the cabin CA and the drive unit DA.

[0047] (About the drive unit DA)

[0048] The driving portion DA is disposed in the region of the vehicle body front structure S and is surrounded by the footrest portion TB and the frame portion FL.

[0049] The drive unit DA includes, for example, a power unit having an internal combustion engine driving the front wheels FT or a vehicle driving electric motor in an electric vehicle, and is a drive device provided with a transmission, a clutch, a drive shaft, and the like.

[0050] The driving portion DA is firmly fixed to the frame portion FL.

[0051] <About protection structure 1>

[0052] The protection structure 1 is a structure applied to a device constituting a driving portion DA that drives the front wheels FT of a vehicle V, for example.

[0053] like Figure 2(a) to Figure 2(c) As shown, the protection structure 1 includes a base 10, a lower bracket 100 as a first bracket, a protection bracket 200 as a second bracket, a front bracket 300, and a sub-bracket SB.

[0054] like Figure 2(a) to Figure 2(c) As shown, on the front side of the protection structure 1, an adjacent component AD is disposed adjacent to the protection bracket 200. The adjacent component AD is, for example, an oil filter or an oil cooler.

[0055] The adjacent component AD is an object that collides with the protective structure 1 when the vehicle V collides.

[0056] Inside the protection structure 1 , an air compressor 20 as a protection target component requiring a high voltage, for example, is fixed to the base 10 via a front bracket 300 and a sub-bracket SB.

[0057] The air compressor 20 is formed in a substantially cylindrical shape, and fixing pedestals 21 to 23 for fixing bolts are formed on upper and lower sides of the air compressor 20 .

[0058] A front bracket 300 is provided at the front side of the air compressor 20 , and a sub-bracket SB is provided at the rear side of the air compressor 20 .

[0059] The air compressor 20 is fixed by bolts or the like via the fixing base 21 and the fixing base 22 while being sandwiched between the front bracket 300 and the sub-bracket SB in the front-rear direction. The air compressor 20 is fixed to the base 10 via the front bracket 300 and the sub-bracket SB.

[0060] A protrusion CN as a protected part is provided on the right side of the air compressor 20 when viewed from the front side of the protection structure 1. The protrusion CN is, for example, a connector for supplying high voltage to the air compressor 20. The protrusion CN protrudes from the air compressor 20 to the right side of the protection structure 1 at the rear side of the protection bracket 200.

[0061] The protection bracket 200 is fixed to the fixing base 23 by bolts or the like.

[0062] (Regarding base 10)

[0063] The base 10 is, for example, an internal combustion engine provided in the driving unit DA, and when a collision occurs, the impact caused by the collision is dispersed to the frame FL. The base 10 is firmly fixed to the frame FL.

[0064] (About Sub-Bracket SB)

[0065] The sub-bracket SB is provided on the rear side of the air compressor 20 , sandwiches the air compressor 20 between the front bracket 300 and the sub-bracket SB, and is fixed in the front-rear direction of the protection structure 1 by bolts or the like.

[0066] On the rear side of the protection structure 1 , the sub-bracket SB penetrates the lower bracket 100 in the up-down direction and is fixed to the base 10 .

[0067] The sub-bracket SB is formed of a casting made of a strong material such as metal.

[0068] (About the lower bracket 100)

[0069] The lower bracket 100 as the first bracket is fixed to the base 10 and has a fixing seat 110 protruding toward the upper side of the vehicle.

[0070] The lower bracket 100 is formed of a casting made of a strong material such as metal, for example.

[0071] 2(c), the lower bracket 100 is placed on the upper side of the base 10 and is arranged to cover the lower side of the air compressor 20. The front side of the lower bracket 100 in the protective structure 1 is bent along the front side of the base 10 into a substantially L shape.

[0072] The lower bracket 100 is fixed to the base 10 by bolts or the like.

[0073] Specifically, the lower bracket 100 is provided with a plurality of bolt holes penetrating from the upper side to the lower side, and is fixed to the base 10 by bolts B11 to B13 , for example, as shown in FIG. 2( a ).

[0074] The lower bracket 100 is provided with a plurality of bolt holes penetrating from the front side to the rear side of the protective structure 1 on the front side of the protective structure 1 , and is fixed to the base 10 by bolts B14 to B15 as shown in FIG. 2( b ).

[0075] As shown in Fig. 2(b) and Fig. 2(c), the lower bracket 100 is provided with a fixing seat 110 as a first fixing portion. The fixing seat 110 protrudes from the lower bracket 100 toward the upper side of the vehicle on the right side when the protective structure 1 is viewed from the front side.

[0076] The protection bracket 200 is fixed to the fixing base 110 by bolts B22.

[0077] As shown in Figure 2(b) and Figure 3 As shown, a distance D1 between the upper surface side of the lower bracket 100 and the upper surface side of the fixing base 110 in the vehicle vertical direction is longer than a distance D2 between the upper surface side of the fixing base 110 and the center of the bolt hole of the fixing base 23 as the second fixing portion in the vehicle vertical direction.

[0078] (Regarding the protection bracket 200)

[0079] like Figure 3 As shown, the protection bracket 200 as the second bracket is placed on the upper side of the fixing base 110 of the lower bracket 100 in a state separated from the lower bracket 100, and covers the protrusion CN as the protection target portion as a vertical wall surface.

[0080] The protection bracket 200 is formed of a casting made of a strong material such as metal, for example. The protection bracket 200 has a substantially L-shape that bends from the lower side to the upper side and to the left side of the protection structure 1 on the upper side.

[0081] A through hole penetrating from the front side to the rear side of the protection structure 1 is provided on the upper left side of the protection bracket 200 , and the protection bracket 200 is fixed to the fixing base 23 of the air compressor 20 by a bolt B21 .

[0082] Furthermore, a through hole penetrating from the upper side to the lower side is provided at the lower rear side of the protection bracket 200 , and the protection bracket 200 is fixed to the fixing base 110 of the lower bracket 100 by bolts B22 .

[0083] The bolts B22 in the protection bracket 200 are fixed to the fixing base 110 protruding upward. In addition, the protection bracket 200 has a substantially L-shaped shape on the front and side sides of the protection structure 1. Therefore, the protection bracket 200 is configured so that the bolts B21 and the bolts B22 are close to each other.

[0084] The protection bracket 200 is fixed to the air compressor 20 from the front side to the rear side of the protection structure 1 by bolts B21 in the fixing base 23, and is fixed to the lower bracket 100 from the upper side to the lower side by bolts B22 on the fixing base 110. In other words, the protection bracket 200 is fixed to the air compressor 20 and the lower bracket 100 by bolts B21 and bolts B22 facing different directions.

[0085] The protection bracket 200 is formed in a substantially L-shape which is bent from the upper side toward the lower side and from the front side to the rear side of the protection structure 1 at the lower side as viewed from the right side of the protection structure 1 .

[0086] A rib LB formed in a substantially right triangle shape as viewed from the right side of the protection structure 1 is provided at the rear side of the protection bracket 200. The rib LB is provided with a slope from the upper front side of the protection structure 1 toward the lower rear side.

[0087] The protection bracket 200 is provided with a protrusion CN at a substantially midpoint between the bolts B21 and B22 that fix the protection bracket 200 in the up-down direction and the left-right direction of the protection structure 1 .

[0088] (About the front bracket 300)

[0089] As shown in FIG. 2( b ) and FIG. 2( c ), the front bracket 300 fixes and supports the air compressor 20 , and is fixed to the base 10 through the lower bracket 100 .

[0090] The front bracket 300 is formed of a casting made of a strong material such as metal, etc. The front bracket 300 is disposed on the front side of the air compressor 20 in the protective structure 1 and is provided to cover the air compressor 20 in the up, down, left and right directions.

[0091] The front bracket 300 is provided with a plurality of bolt holes penetrating from the front side to the rear side of the protection structure 1 for fixing the air compressor 20. In the front bracket 300, bolts BA1 to BA3 penetrate the fixing base 21 and the fixing base 22, and the air compressor 20 is sandwiched and fixed between the front bracket 300 and the sub-bracket SB.

[0092] The front bracket 300 is provided with a plurality of bolt holes penetrating from the front side to the rear side of the protection structure 1. As shown in FIG2(b), the front bracket 300 penetrates the lower bracket 100 through bolts B31 to B33 and is fixed to the base 10. The front bracket 300 is fixed to the base 10 in surface contact with the lower bracket 100.

[0093] The front bracket 300 is formed with a contact portion 310 that protrudes toward the front side of the protection structure 1. The contact portion 310 is formed integrally with the front bracket 300 and is formed of a casting made of a strong material such as metal.

[0094] The contact part 310 extends vertically at the left end and bends rightward below the bolt BA3 when viewed from the front of the protection structure 1. The contact part 310 has a rib LB extending vertically on the right side of the bolt B33 and between the bolts BA2 and BA3.

[0095] <Function and Effect>

[0096] use Figure 4(a)-Figure 4(c) , the effect of the protective structure 1 of the present embodiment having the above-described structure when a vehicle V collides, for example, when an adjacent component AD collides in the direction indicated by the arrow AR1 in FIG. 4( a ) will be described.

[0097] When the vehicle V collides with the adjacent component AD in the direction indicated by the arrow AR1 , the collision energy is transmitted in the direction indicated by the arrow AR1 .

[0098] The adjacent component AD collides with the front side of the protection structure 1 of the protection bracket 200. The collision energy is dispersed toward the arrows AR2 and AR3 and transmitted to the rear side of the protection structure 1 as shown in FIG. 4(b).

[0099] The collision energy in the direction of arrow AR2 is transmitted to the sub-bracket SB from the fixing base 23 toward the fixing base 21 through the bolt B21 of the protection bracket 200. The collision energy transmitted to the sub-bracket SB is transmitted to the base 10 in the direction indicated by arrow AR4 through the lower bracket 100 in the direction indicated by arrow AR5 and absorbed.

[0100] At this time, the protrusion CN as the protection target part is provided on the air compressor 20 having the fixed base 23. As shown by the arrow AR6, energy is applied to the protrusion CN to move in the same direction as the collision energy transmitted to the fixed base 23 together with the air compressor 20. The moving energy applied to the protrusion CN is in a direction away from the adjacent component AD.

[0101] The bolts B22 of the protection bracket 200 face in a direction different from the bolts B21. The collision energy received by the protection bracket 200 faces in different directions through the fixing base 23 and the fixing base 110 and is dispersed to the sub-bracket SB, the lower bracket 100 and the base 10.

[0102] The collision energy in the direction of arrow AR3 is transmitted from the fixing base 110 to the lower bracket 100 through the bolt B22 of the protection bracket 200. Thereafter, the collision energy is transmitted to the base 10 through the bolts B11 to B13 fixing the upper side surface of the lower bracket 100 and the base 10, and the bolts BS1 to BS2 fixing the sub-bracket SB, the lower bracket 100, and the base 10.

[0103] At this time, the bolt B22 of the protection bracket 200 faces the same direction as the bolts B11 to B13 that fix the lower bracket 100 to the base 10 and the bolts BS1 to BS2 that fix the sub-bracket SB to the base 10. Specifically, for example, the bolts B22 of the protection bracket 200, the bolts B11 to B13 of the lower bracket 100, and the bolts BS1 to BS2 of the sub-bracket SB are fixed to the base 10 from the upper side to the lower side. The collision energy transmitted to the upper side of the lower bracket 10 is transmitted to the base 10 through the bolts B11 to B13 and the bolts BS1 to BS2. Therefore, the collision energy is effectively transmitted to the base 10 in the direction indicated by the arrow AR7 that is the same as the direction indicated by the arrow AR3.

[0104] Furthermore, when the collision energy is transmitted from the adjacent component AD, as shown in FIG. 4( c ), the collision energy is transmitted to the rear side of the protection structure 1 while deforming the protection bracket 200 .

[0105] In the direction indicated by the arrow AR2, a moment load is applied to the protection bracket 200 with the axis of rotation being the axis of the fixing point connecting the bolt B21 of the fixing base 23 and the bolt B22 of the fixing base 110. Due to the applied moment load, the front side of the protection structure 1 of the protection bracket 200 is deformed, and the axis of rotation being the axis of the fixing point connecting the bolt B21 and the bolt B22 is turned upward.

[0106] At this time, the protection bracket 200 is fixed to the fixing base 23 of the air compressor 20 by bolts B21. The protection bracket 200 is placed on the lower bracket 100 in a state separated from the lower bracket 100, and is fixed to the fixing base 110 protruding upward by bolts B22.

[0107] The protection bracket 200 has an L-shaped shape that is bent toward the right side and downward from the fixing base 23 when viewed from the front side of the protection structure 1. In addition, the protection bracket 200 has an L-shaped shape that is bent toward the lower side, toward the rear side, and toward the fixing base 110 when viewed from the right side of the protection structure 1.

[0108] Furthermore, a distance D1 between the upper surface of the lower bracket 100 and the upper surface of the fixing base 110 is formed to be longer than a distance D2 between the upper surface of the fixing base 110 and the center of the bolt hole of the fixing base 23 as the second fixing portion.

[0109] In other words, the protection bracket 200 has a shape that brings the fixing base 23 and the fixing base 110 closer. In addition, the fixing base 110 protrudes to a distance that brings the fixing base 23 and the fixing base 110 closer. Therefore, by forming a configuration that brings the fixing base 23 and the fixing base 110 closer in the protection structure 1, the moment load applied to the protection bracket 200 is limited, and the deformation of the protection bracket 200 is limited.

[0110] Furthermore, a rib LB having a slope from the upper front side toward the lower rear side of the protection structure 1 is provided at the rear side of the protection bracket 200 .

[0111] Therefore, the shape of the protection bracket 200 restricts deformation caused by the moment load applied to the protection bracket 200, and the rib LB restricts deformation of the protection bracket 200. Then, by the adjacent component AD further colliding with the fixing base 110 of the lower bracket 100, the moment load applied to the protection bracket 200 is dispersed and reduced to the lower bracket 100.

[0112] Furthermore, the adjacent component AD collides with the fixing seat 110 in the lower bracket 100. The collision energy is transmitted to the base 10 through the lower bracket 100 in the direction indicated by the arrow AR8.

[0113] The collision energy is transmitted in the direction indicated by the arrow AR9 by the collision of the adjacent component AD with the lower bracket 100 and the base 10. The collision energy applied from the adjacent component AD is further dispersed to the lower bracket 100 and the base 10.

[0114] By further dispersing the collision energy applied from the adjacent parts AD to the lower bracket 100 and the base 10 , the moment load applied to the protection bracket 200 is reduced, and deformation of the protection bracket 200 is restricted.

[0115] The protrusion CN is disposed substantially at the center point between the bolts B21 and B22 that fix the protection bracket 200. Therefore, by ensuring the distance between the protrusion CN and the protection bracket 200, the restricted deformation of the protection bracket 200 does not interfere with the protrusion CN.

[0116] The collision energy applied from the adjacent member AD is dispersed in the directions indicated by arrows AR2 to AR9 and is transmitted to the base portion 10. The collision energy transmitted to the base portion 10 is transmitted in the direction indicated by arrow AR10 and is absorbed by the frame portion FL.

[0117] Then, the protective structure 1 stops the movement of the adjacent component AD, and the transfer of the collision energy ends.

[0118] As described above, when the vehicle V collides and, for example, the adjacent component AD hits the protective structure 1 , the protective bracket 200 receives the collision energy, and the protective structure 1 disperses the collision energy to the fixing base 23 of the air compressor 20 , the sub-bracket SB, and the lower bracket 100 , while transmitting it to the base 10 .

[0119] The protection structure 1 transmits and absorbs the collision energy to the base 10 and the frame FL while dispersing the collision energy, so that the adjacent component AD and the protection bracket 200 do not interfere with the protrusion CN as the protection target portion provided on the air compressor 20 as the protection target component.

[0120] In summary, the protection structure 1 of the present embodiment includes: a lower bracket 100 as a first bracket, which has a fixing seat 110 as a first fixing portion protruding toward the upper side of the vehicle; a protection bracket 200 as a second bracket, which is placed on the fixing seat 110 of the lower bracket 100 in a state separated from the lower bracket 100, and covers the protrusion CN as a protection target portion as a wall surface in the up-down direction to prevent the protrusion CN from being interfered by a collision object. Among them, the protection bracket 200 is fixed to the fixing seat 23 as a second fixing portion provided on the air compressor 20 as a protection target component having the protrusion CN on the upper side of the protection bracket 200, and is fixed to the fixing seat 110 of the lower bracket 100 on the lower side of the protection bracket 200; the lower bracket 100 and the protection bracket 200 are arranged between the adjacent component AD as an adjacent component arranged adjacent to the protection bracket 200 and the protrusion CN.

[0121] That is, the lower bracket 100 and the protection bracket 200 are arranged between the adjacent component AD and the protrusion CN. In addition, the protection bracket 200 is placed on the lower bracket 100 in a separated state and fixed to the fixed pedestal 110. When the vehicle V collides, the collision energy is transmitted to the protection bracket 200. The collision energy transmitted to the protection bracket 200 is transmitted from the fixed pedestal 23 fixed to the air compressor 20 to the lower bracket 100 and the base 10 through the sub-bracket SB. In addition, the collision energy transmitted to the protection bracket 200 is transmitted to the lower bracket 100 and the base 10 through the fixed pedestal 110 fixed to the lower bracket 100. In addition, the protection bracket 200 is fixed to the fixed pedestal 21 on the upper side of the vehicle and fixed to the fixed pedestal 110 on the lower side of the vehicle, so as to have a shape that makes the fixing points close. The moment load applied to the protection bracket 200 is limited, and the deformation of the protection bracket 200 caused by the moment load is limited.

[0122] Therefore, the protection structure 1 can effectively disperse the collision energy received by the protection bracket 200 to the sub-bracket SB, the lower bracket 100, and the base 10 through the fixing base 23 and the fixing base 110. In addition, since the protection bracket 200 has a shape that limits the moment load applied to the protection bracket 200, the protection structure 1 can limit the deformation of the protection bracket 200. The protection structure 1 can effectively prevent the adjacent component AD and the protection bracket 200 from interfering with the protrusion CN by limiting the deformation of the protection bracket 200.

[0123] Therefore, when the vehicle collides, interference with the device that needs to be protected can be effectively prevented.

[0124] In the protective structure 1 of the present embodiment, a distance D1 between the vehicle upper side surface of the lower bracket 100 and the vehicle upper side surface of the fixing base 110 in the vehicle upper and lower directions is formed to be longer than a distance D2 between the vehicle upper side surface of the fixing base 110 and the center of the bolt hole of the fixing base 23 in the vehicle upper and lower directions.

[0125] That is, the fixing base 110 of the fixing protection bracket 200 protrudes from the vehicle upper side of the lower bracket 100 toward the vehicle upper side, and the protruding distance is longer than the distance D2 between the vehicle upper side of the fixing base 110 and the center of the bolt hole of the fixing base 23 in the vehicle vertical direction.

[0126] Therefore, the protective structure 1 has a shape that brings the fixing base 23 of the protective bracket 200 and the fixing base 110 close to each other, thereby limiting the moment load applied to the protective bracket 200, and the protective structure 1 can further limit the deformation of the protective bracket 200 caused by the moment load. By further limiting the deformation of the protective bracket 200, the protective structure 1 can more effectively prevent the adjacent component AD and the protective bracket 200 from interfering with the protrusion CN.

[0127] Therefore, when the vehicle collides, interference with the device that needs to be protected can be effectively prevented.

[0128] In the protection structure 1 of the present embodiment, the fixing direction of the protection bracket 200 to the air compressor 20 provided with the protrusion CN as the protection target portion and the fixing direction to the lower bracket 100 face different directions.

[0129] That is, the protection bracket 200 is fixed to the fixing base 23 of the air compressor 20 in the front-rear direction of the protection bracket. In addition, the protection bracket 200 is fixed to the fixing base 110 of the lower bracket 100 in the up-down direction of the protection bracket.

[0130] When a collision occurs with the vehicle V, the collision energy transmitted to the protection bracket 200 is transmitted from the fixing base 23 toward the rear side of the protection structure 1, and is transmitted to the lower bracket 100 and the base 10 through the sub-bracket SB. In addition, the collision energy transmitted to the protection bracket 200 is transmitted from the fixing base 110 toward the lower side, and is transmitted to the lower bracket 100 and the base 10.

[0131] Therefore, the collision energy received by the protection bracket 200 can be effectively dispersed to the sub-bracket SB, the lower bracket 100 and the base 10 in different directions through the fixing base 23 and the fixing base 110. The protection structure 1 can limit the deformation of the protection bracket 200 by dispersing the collision energy, thereby preventing the adjacent component AD and the protection bracket 200 from interfering with the protrusion CN.

[0132] Therefore, when the vehicle collides, interference with the device that needs to be protected can be effectively prevented.

[0133] It should be noted that, in the present embodiment, the lower bracket 100 is fixed to the base 10 , but the lower bracket 100 may also be integrally formed with the base 10 .

[0134] The embodiments of the present invention have been described in detail above with reference to the drawings, but the specific configuration is not limited to the embodiments, and designs that do not depart from the scope of the present invention are also included in the present invention.

Claims

1. A protective structure, characterized in that: include: a first bracket having a first fixing portion protruding toward an upper side of the vehicle; as well as, a second bracket, which is placed on the first fixing portion of the first bracket in a state separated from the first bracket and covers the protection target portion as a wall surface in the up-down direction of the vehicle to prevent the protection target portion from being disturbed by a collision object; The second bracket is fixed to a second fixing portion provided on a protection target component having a protection target portion at an upper side of the second bracket, and is fixed to the first fixing portion of the first bracket at a lower side of the second bracket. The first bracket and the second bracket are arranged between an adjacent component arranged adjacent to the second bracket and the protection target portion.

2. The protective structure according to claim 1, characterized in that: The distance between the vehicle upper side surface of the first bracket and the vehicle upper side surface of the first fixing portion in the vehicle upper direction is greater than the distance between the vehicle upper side surface of the first fixing portion and the center of the bolt hole of the second fixing portion in the vehicle upper direction.

3. The protective structure according to claim 1 or 2, characterized in that: In the second bracket, a fixing direction with respect to the protection target component and a fixing direction with respect to the first bracket are oriented in different directions.

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