Battery pack anti-collision device of new energy vehicle

Abstract

This utility model discloses a battery pack anti-collision device for new energy vehicles, relating to the field of anti-collision protection technology. It includes a battery pack body, with an anti-collision box fixedly connected to the front end of the battery pack body. The anti-collision box has an inner cavity, which is connected to a first opening slot at the lower end of the anti-collision box and a second opening slot at the front end of the anti-collision box. A buffer blocking assembly is disposed within the cavity. The buffer blocking assembly includes a contact ramp, a movable block fixedly connected to the inner end of the contact ramp, and a plurality of evenly distributed first guide posts fixedly connected to the end of the movable block away from the contact ramp. A first fixing plate is slidably connected to the outer end of each first guide post, and the outer end of the first fixing plate is fixedly connected to the inner wall of the cavity. This utility model enables the blocking and buffering action against impacts encountered at the front end of the battery pack body, while also converting the impact torque generated by the impact into a protective torque for the battery pack body, thus improving the external protection level of the battery pack body.

Description

Technical Field

[0001] This utility model relates to the field of anti-collision protection technology, specifically an anti-collision device for a battery pack of a new energy vehicle. Background Technology

[0002] The battery pack of a new energy vehicle is the core energy source of the vehicle, providing driving power. It is mainly composed of positive electrode, negative electrode, electrolyte, separator, battery shell, etc., and is generally composed of multiple battery packs. It also includes a battery management system. Among them, the battery management system is the most critical component of the battery pack. Similarly, the core part consists of hardware circuits, underlying software and application layer software. It can improve the utilization rate of the battery, prevent the battery from overcharging and over-discharging, extend the battery's lifespan, and monitor the battery status. For example, utility model patent CN214589076U discloses a front-end anti-collision structure for a battery pack, including: a front-end protective member fixedly connected to the front of the battery box, and a battery module installed inside the battery box. The front-end protective member is wedge-shaped, with its front end smaller than its rear end, its top horizontal, its bottom inclined, and its left and right sides parallel. The angle α between the bottom and top of the front-end protective member is 20-25 degrees. Multiple rollers are installed on the bottom of the front-end protective member. This utility model can change the direction of force on the battery pack when it collides with an obstacle, allowing the battery pack to smoothly slide over the obstacle and avoiding direct impact from the obstacle, thus preventing serious damage. However, the front-end protective member only provides initial protection after contact with the impacting object and does not provide substantial protection to the bottom of the battery pack. Therefore, we propose a battery pack anti-collision device for new energy vehicles. Utility Model Content

[0003] The purpose of this utility model is to provide a battery pack anti-collision device for new energy vehicles to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a battery pack anti-collision device for a new energy vehicle, comprising a battery pack body, an anti-collision box fixedly connected to the front end of the battery pack body, a placement cavity formed at the inner end of the anti-collision box, the placement cavity communicating with a first opening slot formed at the lower end of the anti-collision box, and a second opening slot formed at the front end of the anti-collision box; a buffer blocking assembly is disposed within the placement cavity, the buffer blocking assembly including a contact inclined plate, a movable block fixedly connected to the inner end of the contact inclined plate, and a plurality of evenly distributed first guide posts fixedly connected to the end of the movable block away from the contact inclined plate. The outer end of the first guide post is slidably connected to a first fixing plate, and the outer end of the first fixing plate is fixedly connected to the inner wall of the cavity. The inner end of the first guide post is fixedly connected to a transverse wedge plate, and the inner end of the transverse wedge plate abuts against a longitudinal wedge plate. The lower end of the longitudinal wedge plate is fixedly connected to a plurality of evenly distributed springs and a second guide post. The springs are sleeved on the second guide post, and the lower end of the springs is fixedly connected to a second fixing plate. The outer end of the second fixing plate is fixedly connected to the inner wall of the cavity. The outer end of the second guide post is slidably connected to the second fixing plate, and the lower end of the second guide post is fixedly connected to a downward moving plate. The lower end of the downward moving plate is fixedly connected to a plurality of evenly distributed blocking plates.

[0005] Preferably, multiple L-shaped mounting plates that are evenly distributed are fixedly connected to both the left and right ends of the battery pack body, and each L-shaped mounting plate has a mounting hole at its upper end.

[0006] Preferably, the height of the contact ramp is greater than the height of the front end of the anti-collision box, and the width of the contact ramp is greater than the width of the anti-collision box.

[0007] Preferably, the vertical cross-sectional dimension of the moving block is smaller than the vertical cross-sectional dimension of the second opening slot, and the contact inclined plate is set in an inclined state at the end away from the battery pack body.

[0008] Preferably, the cross-sectional dimension of the lowering plate is smaller than the cross-sectional dimension of the first opening groove, and the vertical cross-sectional dimension of the blocking plate is smaller than the vertical cross-sectional dimension of the first opening groove.

[0009] Preferably, the first guide post penetrates through the first fixing plate, and the second guide post penetrates through the second fixing plate.

[0010] Preferably, the length of the transverse wedge plate is less than the inner width of the cavity, and the length of the longitudinal wedge plate is less than the inner width of the cavity.

[0011] Compared with the prior art, the beneficial effects of this utility model are: 1. The device comprises a battery pack body, a crash box, an L-shaped mounting plate, mounting holes, a placement cavity, a first opening slot, a second opening slot, and a buffer blocking assembly. When the contact ramp contacts an impacting object at the front end of the battery pack body, the contact ramp moves a moving block, which in turn moves a first guide post. The first guide post then moves a transverse wedge block, which in turn pushes a longitudinal wedge block downwards. The longitudinal wedge block then moves a second guide post downwards, which in turn compresses a spring. The second guide post then moves a lowering plate and a blocking plate downwards, and the blocking plate blocks other external impacting objects. This invention achieves buffering action against impacting objects encountered at the front end of the battery pack body, and also converts the impact torque generated by the impacting object into a protective torque for the battery pack body, thus improving the external protection of the battery pack body.

[0012] 2. The battery pack body, anti-collision box, L-shaped mounting plate and mounting holes are provided. Each mounting hole can be aligned with the reserved hole on the longitudinal beam of the vehicle. Then, the mounting holes can be tightened by external bolts, thus achieving the installation stability of the battery pack body. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic cross-sectional view of the anti-collision box of this utility model. Figure 1 ; Figure 3 This is a schematic diagram of the structure of the flip buffer blocking component of this utility model; Figure 4 This is a schematic cross-sectional view of the anti-collision box of this utility model. Figure 2 .

[0014] In the diagram: 1. Battery pack body; 2. Anti-collision box; 3. L-shaped mounting plate; 4. Mounting hole; 5. Placement cavity; 6. First opening slot; 7. Second opening slot; 8. Buffer blocking assembly; 81. First fixing plate; 82. First guide post; 83. Transverse wedge plate; 84. Moving block; 85. Contact inclined plate; 86. Longitudinal wedge plate; 87. Spring; 88. Second fixing plate; 89. Second guide post; 810. Lowering plate; 811. Blocking plate. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] Please see Figure 1 - Figure 4 This utility model provides a technical solution: a battery pack anti-collision device for a new energy vehicle, including a battery pack body 1, an anti-collision box 2 fixedly connected to the front end of the battery pack body 1, a placement cavity 5 opened at the inner end of the anti-collision box 2, the placement cavity 5 communicating with a first opening slot 6 opened at the lower end of the anti-collision box 2, the placement cavity 5 communicating with a second opening slot 7 opened at the front end of the anti-collision box 2, a buffer blocking assembly 8 disposed in the placement cavity 5, the buffer blocking assembly 8 including a contact inclined plate 85, a moving block 84 fixedly connected to the inner end of the contact inclined plate 85, a plurality of evenly distributed first guide posts 82 fixedly connected to the end of the moving block 84 away from the contact inclined plate 85, and a first guide post 82 slidably connected to the outer end of the first guide post 82. A fixed plate 81 is fixedly connected to the inner wall of the cavity 5 at its outer end. A transverse wedge plate 83 is fixedly connected to the inner end of a first guide post 82. A longitudinal wedge plate 86 is abutted against the inner end of the transverse wedge plate 83. A plurality of evenly distributed springs 87 and a second guide post 89 are fixedly connected to the lower end of the longitudinal wedge plate 86. The springs 87 are sleeved on the second guide post 89. A second fixed plate 88 is fixedly connected to the lower end of the springs 87. The outer end of the second fixed plate 88 is fixedly connected to the inner wall of the cavity 5. The outer end of the second guide post 89 is slidably connected to the second fixed plate 88. A lower moving plate 810 is fixedly connected to the lower end of the second guide post 89. A plurality of evenly distributed blocking plates 811 are fixedly connected to the lower end of the lower moving plate 810.

[0017] In this embodiment, multiple L-shaped mounting plates 3 are fixedly connected to both the left and right ends of the battery pack body 1, and each L-shaped mounting plate 3 has a mounting hole 4 at its upper end.

[0018] Specifically, the battery pack body 1, anti-collision box 2, L-shaped mounting plate 3, and mounting holes 4 are provided. Each mounting hole 4 can be aligned with the reserved hole on the longitudinal beam of the vehicle. Then, external bolts are used to tighten the mounting holes 4, thus achieving the installation stability of the battery pack body 1.

[0019] In this embodiment, the height of the contact ramp 85 is greater than the height of the front end of the anti-collision box 2, and the width of the contact ramp 85 is greater than the width of the anti-collision box 2.

[0020] Specifically, ensure that the contact ramp 85 can directly contact the front end of the anti-collision box 2 during the protection process.

[0021] In this embodiment, the vertical cross-sectional dimension of the moving block 84 is smaller than the vertical cross-sectional dimension of the second opening slot 7, and the contact inclined plate 85 is set in an inclined state at the end away from the battery pack body 1.

[0022] Specifically, it ensures that the moving block 84 does not interfere with the movement of the second opening slot 7, and that the contact ramp 85 can buffer the impacting object through its external ramp surface when it comes into contact with the impacting object.

[0023] In this embodiment, the cross-sectional dimension of the lower moving plate 810 is smaller than the cross-sectional dimension of the first opening groove 6, and the vertical cross-sectional dimension of the blocking plate 811 is smaller than the vertical cross-sectional dimension of the first opening groove 6.

[0024] Specifically, ensure that the protocol board slides within the first opening slot 6 without interference, and ensure that the blocking plate 811 moves within the first opening slot 6 without interference.

[0025] In this embodiment, the first guide post 82 penetrates the first fixing plate 81, and the second guide post 89 penetrates the second fixing plate 88.

[0026] Specifically, ensure that the first guide post 82 does not interfere with the first fixing plate 81, and ensure that the second guide post 89 does not interfere with the second fixing plate 88.

[0027] In this embodiment, the length of the transverse wedge plate 83 is less than the inner width of the cavity 5, and the length of the longitudinal wedge plate 86 is less than the inner width of the cavity 5.

[0028] Specifically, ensure that the transverse wedge plate 83 and the longitudinal wedge plate 86 do not interfere with each other when moving within the placement cavity 5.

[0029] Working principle: First, align each mounting hole 4 with the reserved hole on the longitudinal beam of the vehicle. Then, tighten the mounting holes 4 with external bolts to achieve stable installation of the battery pack body 1. Next, when the contact ramp 85 contacts the impacting object at the front end of the battery pack body 1, the contact ramp 85 drives the moving block 84 to move, which in turn drives the first guide post 82 to move. The first guide post 82 then drives the transverse wedge block to move, which pushes the longitudinal wedge block to move downward. The longitudinal wedge block then drives the second guide post 89 to move downward, which in turn drives the spring 87 to compress. At this time, the second guide post 89 drives the lowering plate 810 and the blocking plate 811 to move downward. The blocking plate 811 then blocks other external impacting objects. This utility model can block and buffer impacting objects encountered at the front end of the battery pack body 1, and also convert the impact torque generated by the impacting object into a protective torque for the battery pack body 1, thereby improving the external protection of the battery pack body 1.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A battery pack anti-collision device of a new energy vehicle, comprising a battery pack body (1), characterized in that: The front end of the battery pack body (1) is fixedly connected to an anti-collision box (2). An inner cavity (5) is provided in the anti-collision box (2). The inner cavity (5) is connected to a first opening slot (6) at the lower end of the anti-collision box (2). The inner cavity (5) is connected to a second opening slot (7) at the front end of the anti-collision box (2). A buffer blocking assembly (8) is provided in the inner cavity (5). The buffer blocking assembly (8) includes a contact inclined plate (85). A moving block (84) is fixedly connected to the inner end of the contact inclined plate (85). A plurality of evenly distributed first guide posts (82) are fixedly connected to the end of the moving block (84) away from the contact inclined plate (85). A first fixing plate (81) is slidably connected to the outer end of the first guide post (82), and the outer end of the first fixing plate (81) is fixed. The inner wall of the cavity (5) is connected to the first guide post (82). A transverse wedge plate (83) is fixedly connected to the inner end of the first guide post (82). A longitudinal wedge plate (86) is abutted to the inner end of the transverse wedge plate (83). A plurality of evenly distributed springs (87) and a second guide post (89) are fixedly connected to the lower end of the longitudinal wedge plate (86). The springs (87) are sleeved on the second guide post (89). A second fixing plate (88) is fixedly connected to the lower end of the springs (87). The outer end of the second fixing plate (88) is fixedly connected to the inner wall of the cavity (5). The outer end of the second guide post (89) is slidably connected to the second fixing plate (88). A lowering plate (810) is fixedly connected to the lower end of the second guide post (89). A plurality of evenly distributed blocking plates (811) are fixedly connected to the lower end of the lowering plate (810).

2. The battery pack anti-collision device of a new energy vehicle according to claim 1, characterized in that: The battery pack body (1) has multiple L-shaped mounting plates (3) that are evenly distributed on both the left and right ends, and each L-shaped mounting plate (3) has a mounting hole (4) at its upper end.

3. The battery pack anti-collision device of a new energy vehicle according to claim 1, characterized in that: The height of the contact ramp (85) is greater than the height of the front end of the anti-collision box (2), and the width of the contact ramp (85) is greater than the width of the anti-collision box (2).

4. The battery pack anti-collision device of a new energy vehicle according to claim 1, characterized in that: The vertical cross-sectional dimension of the moving block (84) is smaller than that of the vertical cross-sectional dimension of the second opening slot (7), and the contact inclined plate (85) is set in an inclined state at the end away from the battery pack body (1).

5. The battery pack anti-collision device of a new energy vehicle according to claim 1, characterized in that: The cross-sectional dimension of the lowering plate (810) is smaller than the cross-sectional dimension of the first opening groove (6), and the vertical cross-sectional dimension of the blocking plate (811) is smaller than the vertical cross-sectional dimension of the first opening groove (6).

6. The battery pack anti-collision device of a new energy vehicle according to claim 1, characterized in that: The first guide post (82) penetrates the first fixing plate (81), and the second guide post (89) penetrates the second fixing plate (88).

7. The battery pack anti-collision device of a new energy vehicle according to claim 1, characterized in that: The length of the transverse wedge plate (83) is less than the inner width of the cavity (5), and the length of the longitudinal wedge plate (86) is less than the inner width of the cavity (5).

Images