Protective structure

Abstract

To effectively prevent interference with a device requiring protection, when a collision is generated in a vehicle.SOLUTION: A protective structure includes a lower bracket 100 having a fixation pedestal 110 projecting toward a vehicle upper side, and a protective bracket 200 which is mounted on the fixation pedestal 110 in the lower bracket 100 in a state of being divided from the lower bracket 100, and covers a projection part CN as a protection target part protecting from interference with a collision object, as a wall surface in a vertical direction, wherein the protective bracket 200 is fixed to a fixation pedestal 23 provided on an air compressor 20 having the projection part CN, on the vehicle upper side of the protective bracket 200, and is fixed to the fixation pedestal 110 in the lower bracket 100 on the vehicle lower side of the protective bracket 200, and the lower bracket 100 and the protective bracket 200 are arranged between an adjacent member AD arranged adjacent to the protective bracket 200, and the projection part CN.SELECTED DRAWING: Figure 2

Description

[Technical field]

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

[0002] In recent years, electric vehicles have become more popular, and when the vehicle is a hybrid vehicle, electric vehicle, etc., an inverter unit that converts DC voltage into AC voltage to drive the electric motor may be installed in the front of the vehicle.

[0003] For example, the inverter generates the high voltage necessary for the vehicle to run, and if deformation or disconnection occurs due to a frontal collision of the vehicle or the like, there is a risk of a sudden abnormal reaction. Therefore, there is a need for a structure that reduces the effect on devices that require high voltage, such as inverters or air compressors, when a vehicle collision occurs.

[0004] As a technology to address the above-mentioned problem, since the gap between the air compressor as an accessory and the bracket is narrowest near the upper mounting part, the upper mounting part, which has a relatively low rigidity, deforms in the event of a frontal collision of the vehicle, and the air compressor rotates relative to the bracket with the lower mounting part, which has a relatively high rigidity, as a fulcrum. A technology has been disclosed (for example, see Patent Document 1) in which the bracket abuts against the air compressor at the part where the gap between the air compressor and the bracket is narrowest, thereby suitably preventing the air compressor from falling off due to the impact during a frontal collision of the vehicle. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Patent No. 6090185 Summary of the Invention [Problem to be solved by the invention]

[0006] In the technology described in Patent Document 1, in the event of a frontal collision of the vehicle, the collision energy is concentrated at one point on the upper mounting part, which has a relatively low rigidity, causing the upper mounting part to break, thereby preventing the air compressor, which is a device that requires protection, from falling off.

[0007] However, the technique described in Patent Document 1 has a problem in that, when a vehicle collision occurs, adjacent members may interfere with the device that needs protection.

[0008] Therefore, the present invention has been made in consideration of the above-mentioned problems, and aims to provide a protective structure that effectively prevents interference with devices that require protection when a vehicle collision occurs. [Means for solving the problem]

[0009] Form 1: One or more embodiments of the present invention propose a protective structure comprising a first bracket having a first fixing portion protruding toward the upper side of the vehicle, and a second bracket that is placed on the first fixing portion of the first bracket in a separated state from the first bracket and covers a part to be protected from interference from a colliding object as an upper and lower wall surface, wherein the second bracket is fixed to a second fixing portion provided on a protected member having a part to be protected, on the upper side of the second bracket, and is further fixed to the first fixing portion of the first bracket on the lower side of the second bracket, and the first bracket and the second bracket are disposed between an adjacent member disposed adjacent to the second bracket and the part to be protected.

[0010] Form 2: One or more embodiments of the present invention propose a protective structure in which the distance in the vehicle vertical direction between the vehicle upper surface of the first bracket and the vehicle upper surface of the first fixing part is longer than the distance in the vehicle vertical direction between the vehicle upper surface of the first fixing part and the center of the bolt hole in the second fixing part.

[0011] Mode 3: One or more embodiments of the present invention propose a protective structure in which the second bracket is fixed to the protected component in a direction different from the direction of fixing to the first bracket. Effect of the Invention

[0012] According to one or more embodiments of the present invention, when a vehicle crash occurs, interference with devices requiring protection can be effectively prevented. [Brief description of the drawings]

[0013] [Figure 1] 1 is a perspective view of a vehicle to which a protective structure according to an embodiment of the present invention is applied, as viewed from above. [Diagram 2] 1A and 1B are three-view diagrams showing a protective structure according to an embodiment of the present invention, in which (a) is a plan view seen from above, (b) is a front view, and (c) is a side view seen from the right side. [Diagram 3] 1 is a perspective view of a protective structure according to an embodiment of the present invention, seen from the upper rear side. [Figure 4] 5A to 5C are side views showing in chronological order the action of the protective structure according to the embodiment of the present invention when a collision occurs. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0014] The protective structure 1 according to this embodiment will be described below with reference to Figures 1 to 4. Note that, as shown in Figures, an arrow FR appropriately indicates the front side of the protective structure 1, as shown in Figure 2, indicates the upper side of the protective structure 1 as viewed from the front side, and an arrow LH indicates the left side of the protective structure 1 as viewed from the front side. In addition, in the following description, when the up-down, front-rear, and left-right directions are used, they indicate the up-down direction as viewed from the front side of the protective structure 1, the front-rear direction with the front side of the protective structure 1 as the front, and the left-right direction as viewed from the front side of the vehicle protective structure 1, unless otherwise specified.

[0015] <Embodiment> The configuration of a protective structure 1 according to this embodiment will be described with reference to FIGS. 1 to 3. FIG.

[0016] <About the front body structure S> 1, a vehicle V has a vehicle body front structure S disposed in front of a cabin CA, which is the interior of the vehicle where passengers sit. The vehicle body front structure S is provided in front of a toe board TB. The vehicle body front structure S includes a frame FL and a drive unit DA.

[0017] (Regarding the frame part FL) The frame portion FL is connected in a crisscross pattern in the vehicle width direction and the vehicle front-rear direction in the vehicle body front structure S, as shown by the dot-hatched portion in Fig. 1. The frame portion FL is the skeleton of the vehicle V, and is made of a strong metal or the like having a substantially rectangular closed cross-sectional shape. When a collision occurs, the frame portion FL protects the cabin CA and the drive portion DA by absorbing and dispersing the impact of the collision into the frame portion FL.

[0018] (About the drive unit DA) The drive section DA is disposed in the area of ​​the vehicle body front structure S, and is surrounded by the toe board section TB and the frame section FL. The drive section DA is a drive device that includes, for example, a power unit section equipped with an internal combustion engine that drives the front wheels FT or a vehicle drive motor in an electric vehicle, and is provided with a transmission, a clutch, a drive shaft, etc. The drive unit DA is firmly fixed to the frame unit FL.

[0019] <Protection Structure 1> The protective structure 1 is a structure that is applied to a device that constitutes a drive unit DA that drives front wheels FT of a vehicle V, for example. As shown in Figures 2(a) to 2(c), the protective structure 1 is configured to include a base portion 10, a lower bracket 100 as a first bracket, a protective bracket 200 as a second bracket, a front bracket 300, and a sub-bracket SB. 2(a) to 2(c), an adjacent member AD is disposed on the front side of the protective structure 1 adjacent to the protective bracket 200. The adjacent member AD is, for example, an oil filter or an oil cooler. The adjacent member AD is an object that hits the protective structure 1 when a collision occurs with the vehicle V.

[0020] Inside the protective structure 1, for example, an air compressor 20 as a member to be protected that requires high voltage is fixed to the base portion 10 via a front bracket 300 and a sub-bracket SB. The air compressor 20 is formed in a substantially cylindrical shape, and fixed bases 21 to 23 for bolt fixing are formed on the upper and lower sides of the air compressor 20.

[0021] A front bracket 300 is provided on the front side of the air compressor 20, and a sub-bracket SB is provided on the rear side of the air compressor 20. The air compressor 20 is sandwiched in the front-rear direction between the front bracket 300 and the sub-bracket SB and is fixed by bolts or the like via the fixed bases 21 and 22. The air compressor 20 is fixed to the base portion 10 via the front bracket 300 and the sub-bracket SB.

[0022] A protrusion CN, which serves as a part to be protected, is disposed on the right side of the protective structure 1 for the air compressor 20 when viewed from the front side. The protrusion CN is, for example, a connector that supplies high voltage to the air compressor 20. The protrusion CN protrudes from the air compressor 20 toward the right side of the protective structure 1, behind the protective bracket 200. A protection bracket 200 is fixed to the fixed base 23 by bolts or the like.

[0023] (Regarding the base part 10) The base unit 10 is, for example, an internal combustion engine provided in the drive unit DA, and disperses the impact of a collision to the frame unit FL when a collision occurs. The base unit 10 is firmly fixed to the frame unit FL.

[0024] (About the sub-bracket SB) The sub-bracket SB is provided on the rear side of the air compressor 20, and the air compressor 20 is sandwiched between the front bracket 300 and the sub-bracket SB and fixed in the front-rear direction of the protective structure 1 by bolts or the like. The sub-bracket SB is fixed to the base portion 10 at the rear side of the protective structure 1, penetrating the lower bracket 100 in the vertical direction. The sub-bracket SB is formed by casting a strong member such as a metal, for example.

[0025] (About the Lower Bracket 100) A lower bracket 100 serving as a first bracket is fixed to a base portion 10, and has a fixing seat 110 formed thereon that protrudes toward the upper side of the vehicle. The lower bracket 100 is formed by casting a strong material such as metal. 2(c), the lower bracket 100 is placed on the upper side of the base portion 10 and is provided so as 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 in a substantially L-shape along the front side of the base portion 10.

[0026] The lower bracket 100 is fixed to the base portion 10 by bolts or the like. Specifically, the lower bracket 100 is provided with a plurality of bolt holes penetrating from the top to the bottom, and is fixed to the base portion 10 by bolts B11 to B13, for example, as shown in FIG. 2(a). The front side of the protective structure 1 of the lower bracket 100 has multiple bolt holes that penetrate from the front side to the rear side of the protective structure 1, and is fixed to the base portion 10 by bolts B14 to B15, as shown in Figure 2(b).

[0027] 2(b) and 2(c), the lower bracket 100 is provided with a fixing base 110 as a first fixing portion. The fixing base 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. A protective bracket 200 is fixed to the fixed base 110 by a bolt B22.

[0028] As shown in Figures 2(b) and 3, the distance D1 in the vertical direction of the vehicle between the upper side of the lower bracket 100 and the upper side of the fixed base 110 is longer than the distance D2 in the vertical direction of the vehicle between the upper side of the fixed base 110 and the center of the bolt hole in the fixed base 23 as the second fixed part.

[0029] (Regarding the protective bracket 200) As shown in FIG. 3, the protective bracket 200 as the second bracket is separated from the lower bracket 100 and placed on the upper side of the fixed base 110 of the lower bracket 100, and covers the protruding portion CN as the part to be protected as an upper and lower wall surface. The protective bracket 200 is formed by, for example, casting of a strong member such as metal. The protective bracket 200 has a generally L-shape that extends from the lower side to the upper side and is bent toward the left side of the protective structure 1 at the upper side.

[0030] A through hole that penetrates from the front to the rear of the protective structure 1 is provided on the upper left side of the protective bracket 200 in the protective structure 1, and the protective bracket 200 is fixed to the fixed base 23 of the air compressor 20 by a bolt B21. Furthermore, a through hole penetrating from the top to the bottom is provided on the rear side of the lower part of the protection bracket 200, and the protection bracket 200 is fixed to the fixing base 110 of the lower bracket 100 by a bolt B22. The bolt B22 of the protective bracket 200 is fixed to the fixed base 110 protruding upward. Furthermore, the protective bracket 200 has a substantially L-shape on the front side and the side side of the protective structure 1. Therefore, the protective bracket 200 is configured to bring the bolt B21 and the bolt B22 close to each other.

[0031] The protective bracket 200 is fixed to the air compressor 20 at the fixed base 23 by bolts B21 from the front to the rear of the protective structure 1, and is fixed to the lower bracket 100 at the fixed base 110 by bolts B22 from the top to the bottom. In other words, the protective bracket 200 is fixed to the air compressor 20 and the lower bracket 100 by bolts B21 and B22 facing in different directions.

[0032] The protective bracket 200 is formed in a generally L-shape extending from the top to the bottom when viewed from the right side of the protective structure 1, and bending at the bottom from the front to the rear of the protective structure 1. A rib LB formed in a substantially right-angled triangular shape when viewed from the right side of the protective structure 1 is provided on the rear side of the protective bracket 200 in the protective structure 1. The rib LB is inclined from the upper front side toward the lower rear side of the protective structure 1.

[0033] The protective bracket 200 has a protrusion CN disposed at approximately the midpoint between the bolts B21 and B22 that secure the protective bracket 200 in the up-down and left-right directions of the protective structure 1.

[0034] (Regarding the front bracket 300) As shown in FIGS. 2(b) and 2(c), the front bracket 300 fixes and supports the air compressor 20, and is fixed to the base portion 10 via the lower bracket 100. The front bracket 300 is formed by, for example, casting a strong member such as metal. The front bracket 300 is disposed on the front side of the protective structure 1 for the air compressor 20 so as to cover the air compressor 20 in the up, down, left and right directions.

[0035] Front bracket 300 has a plurality of bolt holes penetrating from the front side to the rear side of protective structure 1 to which air compressor 20 is fixed. Bolts BA1 to BA3 of front bracket 300 pass through fixed bases 21 and 22, and air compressor 20 is fixed by sandwiching it between front bracket 300 and sub-bracket SB. A plurality of bolt holes penetrating from the front side to the rear side of the protective structure 1 are provided on the front side of the front bracket 300. As shown in Fig. 2(b), the front bracket 300 is fixed to the base portion 10 by bolts B31 to B33, which penetrate the lower bracket 100. The front bracket 300 is fixed to the base portion 10 in surface contact with the lower bracket 100.

[0036] The front bracket 300 is formed with abutment portion 310 that protrudes toward the front side of the protective structure 1. The abutment portion 310 is formed integrally with the front bracket 300, and is formed by casting using a strong member such as metal. The contact portion 310 extends in the vertical direction at the left end when viewed from the front side of the protective structure 1, and is bent to the right below the bolt BA3. A rib LB extending in the vertical direction is formed on the contact portion 310 to the right of the bolt B33 and between the bolts BA2 and BA3.

[0037] <Actions and Effects> In the protective structure 1 of this embodiment configured as described above, the operation when a collision occurs with the vehicle V and, for example, an adjacent member AD collides in the direction indicated by the arrow AR1 in FIG. 4(a) will be described with reference to FIG. 4.

[0038] When a collision occurs with the vehicle V and the adjacent member AD collides in the direction indicated by the arrow AR1, the collision energy is transmitted in the direction indicated by the arrow AR1.

[0039] The adjacent member AD collides with the front side of the protective structure 1 of the protective bracket 200. The collision energy is dispersed in the directions of arrows AR2 and AR3 and transmitted toward the rear side of the protective structure 1, as shown in FIG.

[0040] The collision energy in the direction of arrow AR2 is transmitted from the fixed base 23 to the fixed base 21 via bolt B21 in the protection bracket 200, and then to the sub-bracket SB. The collision energy transmitted to the sub-bracket SB is transmitted in the direction indicated by arrow AR4, and then transmitted to the base portion 10 via the lower bracket 100 in the direction indicated by arrow AR5, where it is absorbed. At this time, the protrusion CN as the part to be protected is provided on the air compressor 20 having the fixed base 23. As indicated by the arrow AR6, energy is applied to the protrusion CN, which moves together with the air compressor 20 in the same direction as the collision energy transmitted to the fixed base 23. The moving energy applied to the protrusion CN is directed in a direction away from the adjacent member AD.

[0041] The bolt B22 of the protection bracket 200 faces in a different direction from the bolt B21. The collision energy received by the protection bracket 200 is directed in different directions via the fixed base 23 and the fixed base 110, and is dispersed to the sub-bracket SB, the lower bracket 100, and the base portion 10. Collision energy in the direction of arrow AR3 is transmitted from fixed base 110 to lower bracket 100 via bolt B22 in protection bracket 200. The collision energy is then transmitted to base portion 10 by bolts B11 to B13 which fasten the upper side surface of lower bracket 100 to base portion 10, and bolts BS1 to BS2 which fasten sub-bracket SB, lower bracket 100, and base portion 10 together.

[0042] At this time, the bolt B22 in the protection bracket 200 faces in the same direction as the bolts B11 to B13 that fix the lower bracket 100 to the base portion 10 and the bolts BS1 to BS2 that fix the sub-bracket SB to the base portion 10. Specifically, for example, the bolt B22 in the protection bracket 200, the bolts B11 to B13 in the lower bracket 100, and the bolts BS1 to BS2 in the sub-bracket SB are fixed to the base portion 10 from the top to the bottom. The collision energy transmitted to the upper side surface of the lower bracket 100 is transmitted to the base portion 10 via the bolts B11 to B13 and the bolts BS1 to BS2. Therefore, the collision energy is efficiently transmitted to the base portion 10 in the direction indicated by the arrow AR7, which is the same as the direction indicated by the arrow AR3.

[0043] Furthermore, when collision energy is transmitted from the adjacent member AD, the collision energy is transmitted toward the rear side of the protective structure 1 while deforming the protective bracket 200, as shown in FIG. 4(c). A moment load is applied to the protective bracket 200 in the direction indicated by the arrow AR2, with the axis connecting the fixed points of the bolt B21 of the fixed base 23 and the bolt B22 of the fixed base 110 as the axis of rotation. Due to the applied moment load, the front side of the protective structure 1 of the protective bracket 200 is deformed so as to curl upward, with the axis connecting the fixed points of the bolt B21 and the bolt B22 as the axis of rotation. At this time, the protection bracket 200 is fixed to the fixed base 23 of the air compressor 20 by a bolt B21. The protection bracket 200 is placed on the lower bracket 100 in a state where it is separated from the lower bracket 100, and is fixed to the fixed base 110 protruding upward by a bolt B22. When viewed from the front side of the protective structure 1, the protective bracket 200 has an L-shape that extends from the fixed base 23 to the right and bends downward. When viewed from the right side of the protective structure 1, the protective bracket 200 has an L-shape that extends from the fixed base 23 to the downward side and bends backward toward the fixed base 110. Furthermore, the distance D1 between the upper surface of lower bracket 100 and the upper surface of fixed base 110 is longer than the distance D2 between the upper surface of fixed base 110 and the center of the bolt hole in fixed base 23 serving as the second fixing portion. In other words, the protective bracket 200 has a shape that brings the fixed base 23 and the fixed base 110 close to each other. Furthermore, the fixed base 110 protrudes to a distance that brings the fixed base 23 and the fixed base 110 close to each other. Therefore, by having the protective structure 1 configured to bring the fixed base 23 and the fixed base 110 close to each other, the moment load applied to the protective bracket 200 is limited, and deformation of the protective bracket 200 is limited. Furthermore, a rib LB is provided on the rear side of the protective bracket 200, the rib LB being inclined from the upper front side toward the lower rear side of the protective structure 1. Therefore, the shape of the protection bracket 200 limits deformation due to the moment load applied to the protection bracket 200, and the rib LB limits deformation of the protection bracket 200. Then, as the adjacent member AD further collides with the fixed base 110 of the lower bracket 100, the moment load applied to the protection bracket 200 is dispersed toward the lower bracket 100 and reduced.

[0044] Furthermore, the adjacent member AD collides with the fixed base 110 of the lower bracket 100. The collision energy is transmitted to the base portion 10 via the lower bracket 100 in the direction indicated by the arrow AR8. When the adjacent member AD collides with the lower bracket 100 and the base portion 10, the collision energy is transmitted in the direction indicated by the arrow AR9. The collision energy applied from the adjacent member AD is further dispersed to the lower bracket 100 and the base portion 10. The moment load applied to the protection bracket 200 is reduced by further dispersing the collision energy applied from the adjacent member AD to the lower bracket 100 and the base portion 10, and the deformation of the protection bracket 200 is limited. The protrusion CN is disposed at approximately the midpoint between the bolts B21 and B22 that secure the protection bracket 200. Therefore, the distance between the protrusion CN and the protection bracket 200 is ensured, so that the limited deformation of the protection bracket 200 does not interfere with the protrusion CN.

[0045] Collision energy applied from the adjacent member AD is dispersed in the directions indicated by the arrows AR2 to AR9 and transmitted to the base portion 10. The collision energy transmitted to the base portion 10 is transmitted in the direction indicated by the arrow AR10 and absorbed by the frame portion FL. Then, the protective structure 1 stops the movement of the adjacent member AD, and the transmission of the collision energy ends.

[0046] As described above, when a collision occurs with the vehicle V and, for example, an adjacent member AD collides toward the protective structure 1, the protective bracket 200 absorbs the collision energy, and the protective structure 1 transmits the collision energy to the base portion 10 while dispersing it to the fixed base 23 of the air compressor 20, the sub-bracket SB, and the lower bracket 100. The protective structure 1 disperses the collision energy while transmitting and absorbing it to the base portion 10 and the frame portion FL, thereby preventing the adjacent member AD and the protective bracket 200 from interfering with the protrusion CN, which is the part to be protected and is provided on the air compressor 20, which is the member to be protected.

[0047] As described above, the protective structure 1 of this embodiment comprises a lower bracket 100 as a first bracket having a fixed base 110 as a first fixed portion protruding toward the upper side of the vehicle, and a protective bracket 200 as a second bracket that is placed on the fixed base 110 of the lower bracket 100 in a separated state from the lower bracket 100 and covers, as an upper and lower wall surface, the protrusion CN as a part to be protected that protects against interference from a colliding object, and the protective bracket 200 is fixed, on an upper side of the protective bracket 200, to a fixed base 23 as a second fixed portion provided on the air compressor 20 as a member to be protected having the protrusion CN, and is further fixed, on a lower side of the protective bracket 200, to the fixed base 110 of the lower bracket 100, and the lower bracket 100 and the protective bracket 200 are arranged between an adjacent member AD as an adjacent member arranged adjacent to the protective bracket 200 and the protrusion CN. That is, the lower bracket 100 and the protection bracket 200 are disposed between the adjacent member AD and the protruding portion CN. Furthermore, the protection bracket 200 is placed on the lower bracket 100 in a divided state and fixed to the fixed base 110. When a collision occurs in the vehicle V, the collision energy is transmitted to the protection bracket 200. The collision energy transmitted to the protection bracket 200 is transmitted from the fixed base 23 fixed to the air compressor 20 to the lower bracket 100 and the base portion 10 via the sub-bracket SB. Furthermore, the collision energy transmitted to the protection bracket 200 is transmitted to the lower bracket 100 and the base portion 10 via the fixed base 110 fixed to the lower bracket 100. Furthermore, the protection bracket 200 has a shape that brings the fixing points close to each other by being fixed to the fixed base 21 on the upper side of the vehicle and to the fixed base 110 on the lower side of the vehicle. The moment load applied to the protective bracket 200 is limited, and the deformation of the protective bracket 200 due to the moment load is limited. Therefore, the protective structure 1 can efficiently distribute the collision energy received by the protective bracket 200 to the sub-bracket SB, the lower bracket 100, and the base portion 10 via the fixed bases 23 and 110. Furthermore, since the protective bracket 200 has a shape that limits the moment load applied to the protective bracket 200, the protective structure 1 can limit the deformation of the protective bracket 200. By limiting the deformation of the protective bracket 200, the protective structure 1 can effectively prevent the adjacent member AD and the protective bracket 200 from interfering with the protruding portion CN. Therefore, when a vehicle collision occurs, interference with devices that require protection can be effectively prevented.

[0048] In the protective structure 1 of this embodiment, the distance D1 in the vehicle vertical direction between the vehicle upper surface of the lower bracket 100 and the vehicle upper surface of the fixed base 110 is longer than the distance D2 in the vehicle vertical direction between the vehicle upper surface of the fixed base 110 and the center of the bolt hole in the fixed base 23. In other words, the fixed base 110 that fixes the protective bracket 200 protrudes from the vehicle upper side surface of the lower bracket 100 toward the upper side of the vehicle a distance longer than the distance D2 in the vehicle vertical direction between the vehicle upper side surface of the fixed base 110 and the center of the bolt hole in the fixed base 23. Therefore, since the protective structure 1 has a shape that brings the fixed base 23 and the fixed base 110 in the protective bracket 200 closer to each other, the moment load applied to the protective bracket 200 is limited, and the protective structure 1 can further limit the deformation of the protective bracket 200 due to the moment load. By further limiting the deformation of the protective bracket 200, the protective structure 1 can more effectively prevent the adjacent member AD and the protective bracket 200 from interfering with the protruding portion CN. Therefore, when a vehicle collision occurs, interference with devices that require protection can be effectively prevented.

[0049] In the protective structure 1 according to this embodiment, the protective bracket 200 is fixed to the air compressor 20 on which the protrusion CN serving as the part to be protected is provided, and the protective bracket 200 is fixed to the lower bracket 100 in a direction different from the direction in which the protective bracket 200 is fixed to the air compressor 20 on which the protrusion CN serving as the part to be protected is provided. In other words, the protection bracket 200 is fixed to the fixed base 23 of the air compressor 20 in the front-rear direction of the protection bracket. Furthermore, the protection bracket 200 is fixed to the fixed base 110 of the lower bracket 100 in the up-down direction of the protection bracket. When a collision occurs with the vehicle V, the collision energy transmitted to the protection bracket 200 travels from the fixed base 23 toward the rear side of the protective structure 1, and is transmitted via the sub-bracket SB to the lower bracket 100 and the base portion 10. The collision energy transmitted to the protection bracket 200 is further transmitted downward from the fixed base 110 to the lower bracket 100 and the base portion 10. Therefore, the collision energy received by the protective bracket 200 is directed in different directions via the fixed base 23 and the fixed base 110, and can be efficiently dispersed to the sub-bracket SB, the lower bracket 100, and the base portion 10. By dispersing the collision energy, the protective structure 1 can limit the deformation of the protective bracket 200 and prevent the adjacent member AD and the protective bracket 200 from interfering with the protruding portion CN. Therefore, when a vehicle collision occurs, interference with devices that require protection can be effectively prevented.

[0050] In the embodiment, the lower bracket 100 is illustrated as being fixed to the base portion 10, but the lower bracket 100 may be integrally molded with the base portion 10.

[0051] Although an embodiment of the present invention has been described in detail above with reference to the drawings, the specific configuration is not limited to this embodiment, and designs that do not deviate from the gist of the present invention are also included. [Explanation of symbols]

[0052] 1;Protective structure 10; Base section 20;Air compressor 23;Fixed base 100;Lower bracket 110;Fixed base 200;Protective bracket 300;front bracket AD; adjacent member B21;Bolt B22;Bolt CN; protrusion FL: Frame section SB; Sub bracket V; Vehicle

Claims

1. a first bracket having a first fixing portion protruding toward an upper side of the vehicle; a second bracket that is separated from the first bracket and placed on the first fixing portion of the first bracket, and covers a portion to be protected from interference by a colliding object as a wall surface in a vertical direction of the vehicle; Equipped with The second bracket is fixed to a second fixing portion provided on a member to be protected having a portion to be protected at an upper side of the second bracket, and is further fixed to the first fixing portion of the first bracket at a lower side of the second bracket, A protective structure characterized in that the first bracket and the second bracket are arranged between an adjacent member arranged adjacent to the second bracket and the part to be protected.

2. The protective structure described in claim 1, characterized in that the distance in the vehicle vertical direction between the vehicle upper surface of the first bracket and the vehicle upper surface of the first fixing portion is longer than the distance in the vehicle vertical direction between the vehicle upper surface of the first fixing portion and the center of the bolt hole in the second fixing portion.

3. 3. The protective structure according to claim 1, wherein the second bracket is fixed to the protected member in a direction different from the direction in which the second bracket is fixed to the first bracket.

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