Battery mounting structure

Abstract

To achieve easiness of attachment / detachment work of a battery pack and collision safety in a side access type mounting structure.SOLUTION: A battery storage space 85 is formed by an L shaped bracket 71, a front plate 72, and a rear plate 79. In the battery storage space 85, an outer side as seen in a vehicle width direction is exposed to the outside. A stopper 74 serving as a reinforcement part is connected to an upper surface of the front plate 72 and an upper surface of the rear plate 79 through a hinge mechanism 74C. The stopper 74 includes a first reinforcement piece 74A and a second reinforcement piece 74B. The first reinforcement piece 74A is connected at an inner end as seen in the vehicle width direction to the upper surface of the front plate 72 and the upper surface of the rear plate 79 through the hinge mechanism 74C. The second reinforcement piece 74B is connected to an outer end as seen in the vehicle width direction of the first reinforcement piece 74A. Further, the second reinforcement piece 74B may close at least a part of an opening 86 at the outer side as seen in the vehicle width direction of the battery storage space 85.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] This specification discloses a battery mounting structure for detachably mounting a battery pack. [Background technology]

[0002] Patent Documents 1 and 2 disclose an electric vehicle. This electric vehicle uses a motor as a drive source. A battery pack is mounted on the electric vehicle. This battery pack is detachable from the vehicle.

[0003] In Patent Document 1, an electric vehicle is placed on a lift, and a battery pack is attached and detached from underneath the vehicle. In Patent Document 2, a battery pack is attached and detached from the side of the electric vehicle. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Laid-Open No. 2011-98644 [Patent Document 2] Japanese Patent Application Laid-Open No. 2012-151916 Summary of the Invention [Problem to be solved by the invention]

[0005] In a side-access type mounting structure, where the battery pack is attached and detached from the side of the vehicle, the battery pack can be replaced using, for example, a forklift, meaning that there is no need to provide dedicated equipment such as a lift when attaching or detaching the battery pack.

[0006] However, in a side-access type mounting structure, the battery pack is disposed in a position that is susceptible to collision load in the event of a side collision of the electric vehicle.

[0007] Therefore, this specification discloses a battery mounting structure that is a side-access type mounting structure and that can achieve both ease of installation and removal of the battery pack and collision safety. [Means for solving the problem]

[0008] This specification discloses a battery mounting structure. This battery mounting structure is provided in an electric vehicle. The battery mounting structure is capable of detachably mounting a battery pack. The battery mounting structure includes an L-shaped bracket, a front plate, and a rear plate. The L-shaped bracket is supported by a frame of the electric vehicle. The L-shaped bracket includes a vertical piece and a horizontal piece. The vertical piece extends in the vertical direction. The horizontal piece extends outward in the vehicle width direction from a lower end of the vertical piece. The front plate is disposed in front of the L-shaped bracket. The front plate also extends outward in the vehicle width direction from the frame. The rear plate faces the front plate across the L-shaped bracket. The L-shaped bracket, front plate, and rear plate form a battery storage space. A battery pack is stored in the battery storage space. The outer side of the battery storage space in the vehicle width direction is exposed to the outside. The battery mounting structure also includes a reinforcing component. The reinforcing component is connected to an upper surface of the front plate and an upper surface of the rear plate via a hinge mechanism. The hinge mechanism has a rotation axis along the vehicle longitudinal axis. The reinforcing component includes a first reinforcing piece and a second reinforcing piece. The vehicle width direction inner end of the first reinforcing piece is connected to the upper surface of the front plate and the upper surface of the rear plate via the hinge mechanism. The second reinforcing piece is connected to the vehicle width direction outer end of the first reinforcing piece. Furthermore, the second reinforcing piece can at least partially block the vehicle width direction outer opening of the battery storage space.

[0009] According to the above configuration, the outer side of the battery pack in the vehicle width direction is protected by the second reinforcing piece. In addition, by making the reinforcing part (stopper) openable and closable via a hinge mechanism, the battery pack can be easily attached and detached.

[0010] In the above configuration, the second reinforcing piece may close an upper region of the opening, in which case a lower region of the opening is exposed to the outside.

[0011] According to the above configuration, the reinforcing component can be made lighter in weight, which allows the reinforcing component to rotate more easily.

[0012] In the above configuration, a case-side engaging part may be provided on the vertical piece of the L-shaped bracket. Also, a battery-side engaging part may be provided on the inner surface of the battery pack in the vehicle width direction. The case-side engaging part is engageable with the battery-side engaging part.

[0013] According to the above configuration, in addition to the battery pack being supported in the vehicle width direction by the reinforcing component, the battery pack is also supported by the engaging component.

[0014] In the above configuration, a case-side contact may be provided on an inner surface of the battery accommodating space in the vehicle width direction. The case-side contact is connectable to the battery-side contact. The case-side contact is connected to a linear motor. The linear motor moves the case-side contact between a standby position and a connection position. The standby position is located inward in the vehicle width direction from the vertical piece of the L-shaped bracket. The connection position is located outward in the vehicle width direction from the vertical piece of the L-shaped bracket.

[0015] According to the above configuration, the case-side contacts can be retracted when the battery pack, which is a heavy object, is being installed.

[0016] In the above configuration, the second reinforcing piece may have a hollow structure.

[0017] According to the above configuration, the second reinforcing piece has a closed cross-section and protrudes in the vehicle width direction. This reduces contact between the battery pack and an obstacle during a side collision of the vehicle. Furthermore, the hollow structure of the second reinforcing piece reduces the weight of the stopper that functions as a lift-up door. [Effects of the Invention]

[0018] According to the battery mounting structure disclosed in this specification, in a side access type mounting structure, it is possible to achieve both ease of mounting and removing the battery pack and collision safety. [Brief explanation of the drawings]

[0019] [Figure 1] 1 is a perspective view illustrating an example of a chassis of an electric vehicle according to an embodiment of the present invention. [Figure 2] FIG. 2 is an enlarged perspective view illustrating a battery mounting structure. [Figure 3] 10 is a perspective view illustrating the battery mounting structure when the stopper is opened. FIG. [Figure 4] FIG. 10 is a perspective view illustrating the battery mounting structure when the stopper is removed. [Figure 5] FIG. 2 is an enlarged perspective view illustrating the structure around the connector. [Figure 6] FIG. 2 is a perspective view showing an example of a battery pack mounted. [Figure 7] 3 is a cross-sectional view taken along line AA in FIG. 2 when the battery pack is mounted. [Figure 8] 3 is a cross-sectional view taken along the line AA in FIG. 2, showing another example of the second reinforcing piece. FIG. DETAILED DESCRIPTION OF THE INVENTION

[0020] The battery mounting structure according to this embodiment will be described below with reference to the drawings. The shapes, materials, quantities, and values ​​described below are examples for the purpose of explanation. These shapes, etc. can be changed as appropriate depending on the specifications of the battery mounting structure. Furthermore, the same reference numerals will be used to designate equivalent elements in all the drawings below.

[0021] In Figures 1 to 8, the longitudinal direction of the vehicle is indicated by the FR axis. The width direction of the vehicle is indicated by the RW axis. Furthermore, the height direction of the vehicle is indicated by the UP axis. The FR axis, RW axis, and UP axis are perpendicular to each other. The positive direction of the FR axis is the front. The positive direction of the RW axis is the right. The positive direction of the UP axis is up.

[0022] 1. Vehicle configuration An electric vehicle 20 according to this embodiment is shown in Fig. 1. The electric vehicle 20 (BEV, Battery Electric Vehicle) runs on power supplied from a battery.

[0023] The electric vehicle 20 is, for example, a cargo vehicle. The electric vehicle 20 includes a chassis 50 (platform). A cab 30 and a luggage compartment 35 are mounted on the chassis 50. In the example of FIG. 1, the cab 30 and the luggage compartment 35 are shown as separate, but the cab 30 and the luggage compartment 35 may be integrated. In other words, the electric vehicle 20 may be a so-called cab-over type vehicle or a van type vehicle.

[0024] In this embodiment, the fixed battery 55 and the battery pack 80 can serve as the power source for the electric vehicle 20. The electric vehicle 20 is driven by a rotating electric machine 56. The electric vehicle 20 also includes battery mounting structures 70, 70. The battery mounting structures 70, 70 detachably mount the battery pack 80.

[0025] 6, in battery mounting structures 70, 70, inlets 81A, 81B of a battery pack 80 are connected to a connector 71D. For example, the fixed battery 55 and the battery packs 80, 80 are connected in parallel to an in-vehicle electrical device (load) such as a rotating electrical machine 56.

[0026] 2. Chassis structure Referring to FIG. 1, the chassis 50 is a basic structure of the electric vehicle 20. The chassis 50 includes a pair of frames 51 and cross members 52A, 52B, and 52C as skeletal components. The frames 51 extend in the front-rear direction of the vehicle (the FR axis direction). The frames 51 are arranged at intervals in the vehicle width direction (the RW axis direction). For example, referring to FIG. 7, the frames 51 are channel steel. The groove openings of the frames 51 face the center in the vehicle width direction.

[0027] 1, cross members 52A, 52B, 52C extend in the vehicle width direction and connect frames 51, 51. For example, both ends of cross members 52A, 52B, 52C in the vehicle width direction are welded to frames 51, 51.

[0028] Front wheels 53, 53 and rear wheels 54, 54 are arranged on the outer sides of the frames 51, 51 in the vehicle width direction. For example, the electric vehicle 20 is a front-wheel drive vehicle. For example, the rotating electric machine 56 is arranged alongside the front wheels 53, 53 along the vehicle width direction.

[0029] A plurality of electric devices are arranged on the chassis 50. For example, the chassis 50 includes a stationary battery 55, a step-up / step-down DC / DC converter 57, an inverter 58, a rotating electric machine 56, and battery mounting structures 70, 70.

[0030] A fixed battery 55, a step-up / step-down DC / DC converter 57, an inverter 58, and a rotating electric machine 56 are housed in the accommodation space between the frames 51. Battery mounting structures 70 are provided on the outer side of the frames 51 in the vehicle width direction. In other words, the battery mounting structures 70 are side-access type mounting structures that can be accessed from the side of the electric vehicle 20.

[0031] The fixed battery 55 is the main battery of the electric vehicle 20. For example, the fixed battery 55 cannot be removed from the vehicle. In other words, the fixed battery 55 is fixed to the vehicle body. For example, the fixed battery 55 is placed under the luggage compartment 35. Furthermore, the fixed battery 55 is bolted to the cross members 52B, 52C and the frames 51, 51. Therefore, the fixed battery 55 is structured so that it cannot be removed except under special circumstances such as a factory. For example, the fixed battery 55 cannot be removed from the vehicle unless the electric vehicle 20 is lifted up and a worker accesses the bottom of the electric vehicle 20 and removes the bolts.

[0032] For example, the rated output [kW] of the fixed battery 55 is equal to or greater than the rated output [kW / rpm] of the rotating electric machine 56. In other words, even when the battery pack 80 is not connected to the electric vehicle 20, the electric vehicle 20 can be driven by the fixed battery 55 alone.

[0033] Furthermore, the electric vehicle 20 can be connected to a maximum of two battery packs 80 in addition to the fixed battery 55. By connecting the battery packs 80, the maximum output [kW / rpm] of the rotating electric machine 56 increases.

[0034] 3. Battery pack 6 illustrates a battery pack 80. The battery pack 80 includes a housing and a plurality of unit cells. The unit cells are stacked inside the rectangular parallelepiped housing. The battery pack 80 includes inlets 81A and 81B as battery-side contacts.

[0035] As shown in the figure, the inlet 81A is provided on the left side surface of the battery pack 80. The inlet 81B is provided on the right side surface of the battery pack 80. As illustrated in FIG. 6, the battery pack 80 may be mounted in the battery mounting structure 70 on the left side of the chassis 50. In this case, the inlet 81B of the battery pack 80 and the connector 71D (case-side contact) of the battery mounting structure 70 are connected. Also, referring to FIG. 1, the battery pack 80 may be mounted in the battery mounting structure 70 on the right side of the chassis 50. In this case, the inlet 81A of the battery pack 80 and the connector 71D of the battery mounting structure 70 (see FIGS. 5 and 6) are connected.

[0036] In addition to the inlet 81A, positioning components are provided on the left side surface of the battery pack 80. The positioning components include a striker 82A and a guide piece 83A. Similarly, in addition to the inlet 81B, positioning components for the battery pack 80 are provided on the right side surface of the battery pack 80. The positioning components include a striker 82B and a guide piece 83B.

[0037] The guide pieces 83A and 83B have a tapered structure in which the width narrows toward the outside in the width direction of the battery pack 80. The guide pieces 83A and 83B are inserted into the guide holes 75A of the battery mounting structure .

[0038] For example, the battery pack 80 is a heavy object weighing approximately 100 kg. As will be described later, when the battery pack 80 is mounted on the battery mounting structure 70, the battery pack 80 is placed on the forks of a forklift, for example. During this mounting operation, the battery pack 80 is guided to the correct position within the battery mounting structure 70 by the guide pieces 83A, 83B and the strikers 82A, 82B.

[0039] 4. Battery mounting structure 1, battery mounting structures 70 are disposed on the outer sides of the frames 51 in the vehicle width direction. In other words, the battery mounting structures 70 are side-access type mounting structures. For example, the battery mounting structures 70 are disposed between the front wheels 53 and the rear wheels 54.

[0040] The battery mounting structures 70, 70 each detachably mount a battery pack 80. The battery mounting structures 70, 70 have the same shape and structure. More precisely, the pair of battery mounting structures 70, 70 have symmetrical shapes and structures.

[0041] 2 to 4 illustrate a battery mounting structure 70 according to this embodiment. FIG. 2 illustrates the battery mounting structure 70 with a stopper 74 (reinforcing component) in a closed state. FIG. 3 illustrates the battery mounting structure 70 with the stopper 74 in an open state. FIG. 4 illustrates the battery mounting structure 70 with the stopper 74 removed.

[0042] 2 to 4, the battery mounting structure 70 includes an L-shaped bracket 71, a front plate 72, a stopper 74, a stopper 74 (reinforcing component), and a rear plate 79.

[0043] The battery mounting structure 70 includes a plurality of L-shaped brackets 71. For example, the plurality of L-shaped brackets 71 are arranged at equal intervals along the front-rear direction of the vehicle. In Figures 2 to 4, three L-shaped brackets 71 are provided on the battery mounting structure 70.

[0044] As will be described later, openings are formed in some of the L-shaped brackets 71 for arranging connectors 71D and rockers 71C. Furthermore, to maintain rigidity, L-shaped brackets 71 without openings are also provided in the battery mounting structure 70. For example, an L-shaped bracket 71 disposed in the center along the vehicle longitudinal direction does not have an opening.

[0045] The L-shaped bracket 71 is supported by the frame 51. The L-shaped bracket 71 includes a vertical piece 71A and a horizontal piece 71B. The vertical piece 71A extends in the up-down direction. For example, the vertical piece 71A is fixed to the frame 51 by welding.

[0046] The horizontal piece 71B extends outward in the vehicle width direction. An inner end of the horizontal piece 71B in the vehicle width direction is connected to the lower end of the vertical piece 71A. Referring to Figure 7, the dimension of the horizontal piece 71B in the vehicle width direction exceeds the dimension of the battery pack 80 in the vehicle width direction.

[0047] Referring to FIG. 5, the vertical piece 71A extends downward beyond the frame 51. A connector 71D and a locker 71C are provided in the lower region of the vertical piece 71A. For example, the vertical piece 71A has two rectangular openings drilled in the vertical direction. The connector 71D is disposed in one of the rectangular openings. The locker 71C is disposed in the other rectangular opening.

[0048] Connector 71D is a contact point with inlets 81A and 81B of battery pack 80 (see FIG. 6). Connector 71D is provided on the inner surface of battery accommodating space 85 in the vehicle width direction. Connector 71D is also called a case-side contact point. Inlets 81A and 81B are also called battery-side contact points. Connector 71D can move linearly in the vehicle width direction, as illustrated by the dashed line in FIG. 5.

[0049] For example, the connector 71D is connected to a linear motor 75C illustrated in Fig. 5. The linear motor 75C moves the connector 71D between a standby position indicated by a solid line in Fig. 5 and a connected position indicated by a dashed line. In the standby position, the connector 71D is positioned inward in the vehicle width direction from the vertical piece 71A of the L-shaped bracket 71. In the connected position, the connector 71D is positioned outward in the vehicle width direction from the vertical piece 71A.

[0050] The locker 71C engages with strikers 82A and 82B of the battery pack 80 (see FIG. 6). The locker 71C is also called a case-side engaging part. The strikers 82A and 82B are also called battery-side engaging parts.

[0051] A latch 71E is provided within the rocker 71C. For example, the latch 71E rotates along the longitudinal axis of the vehicle. A biasing member such as a spring biases the latch 71E in a direction toward the engaged position shown in FIG. 5.

[0052] As the battery pack 80 is accommodated in the battery accommodating space 85, the strikers 82A and 82B push up the latch 71E. When the strikers 82A and 82B climb over the hook-shaped portion of the latch 71E, the latch 71E returns to the engaged position. This causes the strikers 82A and 82B to engage with the locker 71C. Also, for example, a wire is connected to the latch 71E. The wire is connected to a motor. When an unlocking operation is performed using a screwdriver or the like, the wire is pulled by the motor. As a result, the latch 71E is disengaged from the strikers 82A and 82B.

[0053] A guide plate 75 is disposed between adjacent vertical pieces 71A, 71A. A guide hole 75A is formed in the guide plate 75. The guide hole 75A has a tapered structure in which the passage width becomes narrower toward the inside in the vehicle width direction.

[0054] As the battery pack 80 is accommodated in the battery accommodating space 85, the tips of the guide pieces 83A and 83B are inserted into the guide holes 75A. Then, the guide pieces 83A and 83B are inserted further into the guide holes 75A along the tapered shape of the guide holes 75A. At this time, the battery pack 80 is positioned in the longitudinal direction of the vehicle. After the battery pack 80 is positioned, the strikers 82A and 82B (battery-side engaging parts) of the battery pack 80 engage with the rockers 71C and 71C (case-side engaging parts). This engagement restricts movement of the battery pack 80 in the vehicle width direction.

[0055] 5, an engagement switch 75B is disposed at the innermost portion of guide hole 75A, that is, at the inner end in the vehicle width direction. Engagement switch 75B is pressed down by the tips of guide pieces 83A and 83B.

[0056] The engagement switch 75B is linked to the linear motor 75C. For example, when the engagement switch 75B is not pressed down, the linear motor 75C moves the connector 71D to the standby position. When the engagement switch 75B is pressed down, the linear motor 75C moves the connector 71D from the standby position to the connection position.

[0057] In this way, when the battery pack 80 is mounted on the battery mounting structure 70, the connector 71D retreats to the inside in the vehicle width direction relative to the L-shaped bracket 71. When the battery pack 80 moves to the correct position in the battery mounting structure 70, the tips of the guide pieces 83A and 83B press down on the engagement switch 75B. This causes the connector 71D to protrude outward in the vehicle width direction relative to the L-shaped bracket 71. The connector 71D (case-side contacts) then connects to the inlets 81A and 81B (battery-side contacts) of the battery pack 80.

[0058] 2 to 4, the front plate 72 is a plate-like component disposed in front of the L-shaped bracket 71. The front plate 72 extends outward in the vehicle width direction from the frame 51. The rear plate 79 faces the front plate 72 across the L-shaped bracket 71. The rear plate 79 extends outward in the vehicle width direction from the frame 51.

[0059] Rockers 72A and 79A are provided on the outer ends of the front plate 72 and the rear plate 79 in the vehicle width direction. Strikers 74F and 74G of the stopper 74 engage with the rockers 72A and 79A. For example, the rockers 72A and 79A are provided with latches similar to the rocker 71C (see FIG. 5). Also, similar to the rocker 71C, the latches are disengaged from the strikers 74F and 74G by an unlocking operation using a screwdriver or the like.

[0060] The L-shaped bracket 71, the front plate 72, and the rear plate 79 form a battery accommodating space 85. The battery pack 80 is accommodated in the battery accommodating space 85. The outer side of the battery accommodating space 85 in the vehicle width direction is exposed to the outside. For example, as illustrated in Figure 3, the battery accommodating space 85 has an opening 86 formed on the outer side in the vehicle width direction.

[0061] A stopper 74 is connected to the outer end portion in the vehicle width direction of the front plate 72 and the rear plate 79. The stopper 74 can at least partially close an opening 86 of the battery accommodating space 85.

[0062] For example, the stopper 74 is made of a high-tensile steel plate. For example, the stopper 74 has the same level of rigidity as a bumper reinforcement (not shown), which is a reinforcing part of the electric vehicle 20. For this reason, the stopper 74 is also called a reinforcing part.

[0063] 7 illustrates the cross section AA of FIG. 2 when the battery pack 80 is installed. The stopper 74 (reinforcing component) has a hook shape when viewed from the front. With reference to FIGS. 2 and 3, the stopper 74 includes a first reinforcing piece 74A, a second reinforcing piece 74B, a hinge mechanism 74C, a buffer sheet 74D, and strikers 74F and 74G (see FIG. 3).

[0064] 2, when stopper 74 is in the closed position, first reinforcing piece 74A extends in the vehicle width direction. An inner end of first reinforcing piece 74A in the vehicle width direction is connected to the upper surfaces of front plate 72 and rear plate 79 via hinge mechanism 74C. Hinge mechanism 74C has a rotation axis in the vehicle front-rear direction.

[0065] When the stopper 74 is in the closed position, the second reinforcing piece 74B extends in the vertical direction of the vehicle. An upper end of the second reinforcing piece 74B is connected to an outer end of the first reinforcing piece 74A in the vehicle width direction.

[0066] When the stopper 74 is in the closed position, the second reinforcing piece 74B at least partially covers the opening 86 of the battery accommodating space 85. Referring to Fig. 7, the second reinforcing piece 74B covers, for example, the upper region of the opening 86. At this time, the lower region of the opening 86 is exposed to the outside.

[0067] For example, the height H1 of the second reinforcing piece 74B may be less than half the height H0 of the opening 86 (H1 < H0 / 2). By reducing the weight of the second reinforcing piece 74B in this way, the opening and closing operation of the stopper 74 can be easily performed.

[0068] 7, when stopper 74 is in the closed position, second reinforcing piece 74B is positioned outward in the vehicle width direction from battery pack 80. Therefore, in the event of a side collision of electric vehicle 20, second reinforcing piece 74B will primarily collide with an obstacle. In other words, battery pack 80 is protected from the obstacle by second reinforcing piece 74B.

[0069] Furthermore, strikers 74F, 74G of stopper 74 engage with rockers 72A, 79A of front plate 72 and rear plate 79, respectively, thereby firmly maintaining stopper 74 in a closed state. For example, when electric vehicle 20 is cornering, centrifugal force urges battery pack 80 outward in the vehicle width direction. Accordingly, stopper 74, which supports battery pack 80 from the outside in the vehicle width direction, is urged outward in the vehicle width direction. Engagement of stopper 74 with rockers 72A, 79A prevents stopper 74 from opening.

[0070] A buffer sheet 74D may be attached to the inner surfaces of the first reinforcing piece 74A and the second reinforcing piece 74B. The buffer sheet 74D prevents metallic contact between the stopper 74 and the battery pack 80. This reduces noise generation.

[0071] An air damper 74E may be provided on the stopper 74. When the stopper 74 in the open state rotates to the closed state due to its own weight, the air damper 74E prevents the stopper 74 from rotating suddenly.

[0072] 7, the stopper 74 is made of a metal plate. Alternatively, the stopper 74 may have a hollow structure. For example, as shown in FIG. 8, the second reinforcing piece 74B has a hollow structure.

[0073] Compared to when second reinforcing piece 74B is formed from a single metal plate, second reinforcing piece 74B having a hollow structure increases the distance it protrudes outward in the vehicle width direction from battery pack 80. In other words, direct collision between an obstacle and battery pack 80 can be suppressed during a side collision.

[0074] In addition, by making the second reinforcing piece 74B have a hollow interior, weight increase is suppressed. Since the stopper 74 is a flip-up door, suppressing weight increase suppresses an increase in the burden of opening and closing the door. [Explanation of symbols]

[0075] 20 electric vehicle, 51 frame, 56 rotating electric motor, 70 battery mounting structure, 71 L-shaped bracket, 71A vertical piece, 71B horizontal piece, 71C rocker (case-side engaging part), 71D connector (case-side contact), 72 front plate, 74 stopper (reinforcing part), 74A first reinforcing piece, 74B second reinforcing piece, 74C hinge mechanism, 75 guide plate, 75A guide hole, 75B engaging switch, 75C linear motor, 79 rear plate, 80 battery pack, 81A, 81B inlet (battery-side contact), 82A, 82B striker (battery-side engaging part), 83A, 83B guide piece, 85 battery accommodating space, 86 opening.

Claims

1. A battery mounting structure provided in an electric vehicle, capable of detachably mounting a battery pack, an L-shaped bracket supported by a frame of the electric vehicle and including a vertical piece extending in a vertical direction and a horizontal piece extending outward in a vehicle width direction from a lower end of the vertical piece; a front plate disposed in front of the L-shaped bracket and extending outward in a vehicle width direction from the frame; a rear plate facing the front plate with the L-shaped bracket interposed therebetween; Equipped with the L-shaped bracket, the front plate, and the rear plate form a battery accommodating space in which the battery pack is accommodated and whose outer side in the vehicle width direction is exposed to the outside; Further, a reinforcing component is provided which is connected to an upper surface of the front plate and an upper surface of the rear plate via a hinge mechanism having a vehicle longitudinal axis as a rotation axis, The reinforcing component is a first reinforcing piece having an inner end portion in a vehicle width direction connected to the upper surface of the front plate and the upper surface of the rear plate via the hinge mechanism; a second reinforcing piece connected to an outer end of the first reinforcing piece in the vehicle width direction and capable of at least partially closing an opening of the battery accommodating space on the outer side in the vehicle width direction; Equipped with Battery mounting structure.

2. The battery mounting structure according to claim 1, the second reinforcing piece closes an upper region of the opening, The lower region of the opening is exposed to the outside. Battery mounting structure.

3. 3. The battery mounting structure according to claim 2, a case-side engaging part engageable with a battery-side engaging part provided on an inner surface of the battery pack in the vehicle width direction is provided on the vertical piece of the L-shaped bracket; Battery mounting structure.

4. The battery mounting structure according to claim 3, a case-side contact connectable to a battery-side contact is provided on an inner surface of the battery accommodating space in the vehicle width direction; The case-side contact is connected to a linear motor, the linear motor moves the case-side contact between a standby position located more inward in the vehicle width direction than the vertical piece of the L-shaped bracket and a connection position located more outward in the vehicle width direction than the vertical piece of the L-shaped bracket. Battery mounting structure.

5. 3. The battery mounting structure according to claim 2, The second reinforcing piece has a hollow structure. Battery mounting structure.

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