Auxiliary battery fixing structure

Abstract

The utility model provides a kind of auxiliary battery fixing structure, including the car width direction one side of being fixed in automobile floor panel, the tray for carrying auxiliary battery, and the bracket of limiting auxiliary battery to the front side and outside of car movement, auxiliary battery is cuboid, and with long side parallel to the state of car length direction is configured on tray;Tray is configured as the bottom surface shape of auxiliary battery corresponding oblong in plan view shape, and with the erected wall of limiting auxiliary battery to the inside movement of car;Bracket has the buckle portion of the corner portion of front outside of auxiliary battery and the pressing portion of the outside surface of auxiliary battery;By bolt, pressing portion is fastened on floor panel, bracket is fixed on floor panel;The length dimension of pressing portion in car length direction is more than 1 / 3 of the length dimension of the outside surface of auxiliary battery in car length direction.Based on the structure, the mounting stability of battery when car occurs frontal collision can be improved.

Description

Technical Field

[0001] This utility model relates to an auxiliary battery fixing structure. Background Technology

[0002] In the prior art, in order to prevent the auxiliary battery on the vehicle from moving to the front of the vehicle in the event of a frontal collision, an auxiliary battery mounting part is generally provided on the vehicle.

[0003] Typically, the auxiliary battery mounting section includes a left beam and a right beam extending along the length of the vehicle on the lower left and lower right sides, respectively, and a crossbeam mounted on the left beam and the right beam. The battery pack is mounted on the vehicle floor panel within the space formed between the left beam and the right beam, and is located in the area below the crossbeam.

[0004] The left and right beams have inner and outer walls. The inner wall is composed of an upper longitudinal wall, a lower longitudinal wall, and a transverse wall. The upper longitudinal wall faces the transverse beam in the vehicle width direction; the lower longitudinal wall faces the battery pack in the vehicle width direction below the upper longitudinal wall and is recessed outward relative to the upper longitudinal wall in the vehicle width direction; the transverse wall connects the upper end of the lower longitudinal wall to the lower end of the upper longitudinal wall. Additionally, a protrusion is provided at the lower end of the upper longitudinal wall, projecting inward toward the inside of the vehicle. The left and right beams are configured as hollow, closed-section shapes, with one or more transverse beams for load transfer mounted on the upper longitudinal wall and the outer wall in the hollow portion.

[0005] The aforementioned auxiliary battery mounting section can suppress the vibration of the auxiliary battery by increasing the rigidity of the components; however, it cannot securely fix the auxiliary battery in the event of a frontal collision. Utility Model Content

[0006] In view of the above situation, the purpose of this utility model is to provide an auxiliary battery fixing structure that can improve the battery mounting stability when a car is involved in a frontal collision.

[0007] As a technical solution to the above-mentioned technical problems, this utility model provides an auxiliary battery fixing structure, characterized in that: it includes a tray for supporting the auxiliary battery, which is fixed to one side of the floor panel of a car in the vehicle width direction; and a bracket for restricting the movement of the auxiliary battery towards the front side in the vehicle length direction and the outer side in the vehicle width direction. The auxiliary battery is a cuboid that is rectangular in plan view and is arranged on the tray with its long side parallel to the vehicle length direction. The tray is configured such that its plan view shape is a rectangle corresponding to the bottom shape of the auxiliary battery, and a bracket is provided on its inner side near the vehicle width direction. The bracket has a raised wall on the side for restricting the movement of the auxiliary battery inward in the vehicle width direction; the bracket has a latching part that abuts against the corner of the auxiliary battery near the front side in the vehicle length direction and the outer side in the vehicle width direction, and a pressing part that abuts against the outer side of the auxiliary battery facing the outer side in the vehicle width direction; the bracket is fixed to the floor panel by fastening the part of the pressing part near the latching part to the floor panel with bolts; the length of the pressing part in the vehicle length direction is set to be more than 1 / 3 of the length of the outer side of the auxiliary battery in the vehicle length direction.

[0008] Based on the auxiliary battery fixing structure of this utility model, since the bracket is configured such that the snap-fit ​​part abuts against the front side of the auxiliary battery near the vehicle length direction and the outer corner near the vehicle width direction, and the pressing part abuts against the outer side of the auxiliary battery facing the vehicle width direction, and a raised wall is provided on the inner side of the tray near the vehicle width direction to restrict the movement of the auxiliary battery inward in the vehicle width direction, when a frontal collision occurs, the bracket can prevent the auxiliary battery mounted on the tray from moving towards the front side of the vehicle length direction and the outer side of the vehicle width direction under the action of inertial force. At the same time, the pressing part of the bracket and the raised wall of the tray clamp the auxiliary battery in the middle, thereby preventing the auxiliary battery from rotating under the action of torque. Therefore, by using a single bracket with a simple structure and light weight, the mounting stability of the auxiliary battery can be improved with a low-cost and lightweight structure.

[0009] In addition, in the above-mentioned auxiliary battery fixing structure of this utility model, it is preferred that the buckle part is configured as an approximately L-shaped part when viewed from above, and the inner surface of the bent portion of the buckle part in the L-shape abuts against the corner of the auxiliary battery; the pressing part is configured as an approximately rectangular part when viewed from above, and an upper flange is provided in the portion of the pressing part that abuts against the outer side of the auxiliary battery so as to abut against the outer side of the auxiliary battery. Attached Figure Description

[0010] Figure 1 is a perspective view showing a schematic structure of one embodiment of the auxiliary battery fixing structure of this utility model.

[0011] Figure 2 is a top view of the auxiliary battery fixing structure in Figure 1.

[0012] Figure 3 is an enlarged representation of the support structure in Figure 1. Detailed Implementation

[0013] The embodiments of this utility model will now be described with reference to the accompanying drawings.

[0014] The vehicle to which the auxiliary battery mounting structure of this embodiment is applicable can be an electric vehicle driven by a motor or a hybrid vehicle driven by a motor and an engine.

[0015] Figure 1 is a perspective view showing the outline structure of the auxiliary battery fixing structure of this embodiment, and Figure 2 is a top view of the auxiliary battery fixing structure in Figure 1. In each figure, arrow Up indicates the upper side in the vehicle height direction, arrow Fr indicates the front side in the vehicle length direction, arrow Lh indicates the left side in the vehicle width direction, and arrow Rh indicates the right side in the vehicle width direction.

[0016] In this embodiment, the auxiliary battery 1 is, for example, located on the right side of the rear seat of an electric vehicle or a hybrid electric vehicle in the vehicle width direction. The auxiliary battery 1 is configured as a rectangular cuboid shape when viewed from above, and is arranged on the tray 2 described later with its long side parallel to the vehicle length direction.

[0017] In this embodiment, when the auxiliary battery 1 is configured as described above, the side of the auxiliary battery 1 facing forward of the vehicle (the side with the shorter side) is called the "front surface," and the side facing backward of the vehicle is called the "rear surface." Similarly, the side of the auxiliary battery 1 facing outward of the vehicle (the side with the longer side) is called the "outer surface," and the side facing inward of the vehicle is called the "inner surface." Here, the outer surface of the auxiliary battery 1 is the side facing the right side in the vehicle width direction, and the inner surface is the side facing the left side in the vehicle width direction.

[0018] The auxiliary battery fixing structure in this embodiment includes a tray 2 and a bracket 3.

[0019] The tray 2 is used to carry the auxiliary battery 1. The tray 2 is disposed on one side of the rear floor panel 4 in the vehicle width direction (right side in this embodiment), and its four corners are fastened to the rear floor panel 4 by fasteners such as bolts (not shown).

[0020] Specifically, the top view of the tray 2 is configured as a rectangle corresponding to the bottom shape of the auxiliary battery 1. An upward-standing wall 21 is provided on the inner side of the tray 2 near the vehicle width direction (i.e., the left side), but no upward-standing wall 21 is provided on the other three sides, namely, the front side (the front side near the vehicle length direction), the rear side (the rear side near the vehicle length direction), and the right side (the outer side near the vehicle width direction).

[0021] With the auxiliary battery 1 positioned in the tray 2, the upright wall 21 of the tray 2 faces the inner side of the auxiliary battery 1 with a narrow gap, which prevents the auxiliary battery 1 from moving toward the inside of the vehicle (to the left in the vehicle width direction).

[0022] The bracket 3 is used to prevent the auxiliary battery 1, which is disposed in the tray 2, from moving forward (front side in the vehicle length direction) and outward (right side in the vehicle width direction). Figure 3 is an enlarged view of the bracket 3, in which arrow Fr indicates the front side in the vehicle length direction, arrow Lh indicates the left side in the vehicle width direction, and arrow Rh indicates the right side in the vehicle width direction. As shown in Figure 3, the bracket 3 has a snap-fit ​​part 31 and a pressing part 32.

[0023] The latching part 31 is configured to be approximately L-shaped when viewed from above and approximately U-shaped when viewed from the side. The inner surface of the L-shaped bend of the latching part 31 abuts against the corner of the front outer side of the auxiliary battery 1 (the front side near the vehicle length direction and the right side near the vehicle width direction).

[0024] Here, by configuring the latching part 31 as approximately L-shaped when viewed from above and approximately U-shaped when viewed from the side, the tear strength of the inner corner portion of the latching part 31 can be maximized.

[0025] The pressing part 32 is configured to be approximately rectangular when viewed from above. On the inner surface of the pressing part 32, that is, on the surface facing the inside of the vehicle (the left side in the vehicle width direction), an upwardly erected upper flange 33 is provided. The inner side surface of the upper flange 33 (the surface facing the inside of the vehicle) abuts against the outer side surface of the auxiliary battery 1 (the surface facing the outside of the vehicle).

[0026] Preferably, the length of the pressing part 32 in the vehicle length direction is set to be as long as possible. Here, the length of the pressing part 32 in the vehicle length direction is more than 1 / 3 of the length of the outer side of the auxiliary battery 1 in the vehicle length direction. In this way, the pressing part 32 of the bracket 3 and the upright wall 21 of the tray 2 clamp the auxiliary battery 1 in the middle.

[0027] As shown in Figure 3, the bracket 3 is fixed by fastening the pressing part 32 to the rear floor panel 4 with bolts 5. Specifically, a through hole (not shown) is formed in the part of the pressing part 32 near the snap-fit ​​part 31, extending along the height direction of the vehicle. The bolt 5 is inserted into the through hole from top to bottom and tightened into the internal threaded hole (not shown) formed on the rear floor panel 4.

[0028] The following describes the condition of the auxiliary battery 1 in the event of a frontal collision.

[0029] When a frontal collision occurs, as shown in Figure 3, an inertial force F1 is generated on the auxiliary battery 1, acting forward in the direction of vehicle length. Under the action of this inertial force F1, the auxiliary battery 1 attempts to move forward in the direction of vehicle length. However, in this embodiment, since a bracket 3 is provided at the front outer corner of the auxiliary battery 1, the forward movement of the auxiliary battery 1 is prevented by the bracket 3.

[0030] At this time, due to the inertial force F1 acting on the bracket 3, a rotational force F2 is generated, causing the auxiliary battery 1 and the bracket 3 to rotate together about the central axis of the bolt 5 in the direction of the arrow in Figure 3. However, in this embodiment, since the length of the pressing part 32 of the bracket 3 in the vehicle length direction is set to be sufficiently long, the pressing part 32 of the bracket 3 and the upright wall 21 of the tray 2 sandwich the auxiliary battery 1 in the middle. When the bracket 3 rotates, it pushes the auxiliary battery 1 against the upright wall 21 of the tray 2, so that the inner side of the auxiliary battery 1 abuts against the upright wall 21, thereby preventing rotation. That is, the rotational force F2 is transmitted to the rear floor panel 4 through the upright wall 21 of the tray 2 and the bracket 3 and is borne by the rear floor panel 4. Thus, it is possible to prevent the auxiliary battery 1 and the bracket 3 from rotating together about the central axis of the bolt 5 in the direction of the arrow in Figure 3.

[0031] As described above, based on the auxiliary battery fixing structure of this embodiment, when a frontal collision occurs, the auxiliary battery 1, which is mounted on the rear floor panel 4 via the tray 2, can be prevented from moving towards the front of the vehicle by a single bracket 3. Furthermore, the auxiliary battery 1 can be pushed against the upright wall 21 located on one side of the tray 2 near the inside of the vehicle by the pressing part 32 of the bracket 3, thereby preventing the rotation of the auxiliary battery 1.

[0032] Thus, by employing a single, simple, and lightweight bracket 3, it is possible to prevent the auxiliary battery 1 from moving forward under the influence of inertial forces during a frontal collision, and also to prevent the auxiliary battery 1 from rotating about the central axis of the bolt 5. In other words, the stability of the auxiliary battery 1 can be improved with a low-cost and lightweight structure.

[0033] However, this utility model is not limited to the above-described embodiments and can be applied and modified in various ways.

[0034] For example, in the above embodiments, an example is given in which the auxiliary battery 1 is located on the right side of the lower part of the rear seat of a car such as an electric vehicle or a hybrid electric vehicle. However, the present invention is not limited to this. For example, the auxiliary battery 1 can also be located on the left side of the lower part of the rear seat of the car.

Claims

1. An auxiliary battery fixing structure, characterized in that: This includes a tray fixed to the vehicle's floor panel for supporting the auxiliary battery; and a bracket for restricting the movement of the auxiliary battery towards the front in the vehicle's length direction and the outer side in the vehicle's width direction. The auxiliary battery is a rectangular cuboid viewed from above, and is arranged on the tray with its long side parallel to the vehicle length direction; The tray is configured such that its top view shape is a rectangle corresponding to the bottom shape of the auxiliary battery, and a raised wall is provided on its inner side near the vehicle width direction to restrict the movement of the auxiliary battery inward in the vehicle width direction. The bracket has a latching part that abuts against the front side of the auxiliary battery in the vehicle length direction and the outer corner in the vehicle width direction, and a pressing part that abuts against the outer side of the auxiliary battery facing the vehicle width direction. The bracket is fixed to the floor panel by fastening the portion of the pressing part near the snap-fit ​​part to the floor panel with bolts; The length of the pressing part in the vehicle length direction is set to be more than 1 / 3 of the length of the outer side of the auxiliary battery in the vehicle length direction.

2. The auxiliary battery fixing structure as described in claim 1, characterized in that: The latching part is configured to be approximately L-shaped when viewed from above, and the inner surface of the L-shaped bend of the latching part abuts against the corner of the auxiliary battery; The pressing part is configured to be approximately rectangular when viewed from above. An upper flange is provided on the portion of the pressing part that abuts against the outer side of the auxiliary battery.

Images