Lower protective plate of automobile battery pack

Abstract

The utility model relates to an automobile battery pack lower protection plate which comprises a lower protection plate body, a plurality of automobile body mounting holes for locking the lower protection plate body on an automobile body are formed in the circumferential direction of the lower protection plate body, and at least two groups of reinforcing structures which are oppositely arranged and radially distributed are arranged between the automobile body mounting holes of the lower protection plate body. The lower protection plate has the advantages that the lower protection plate body is made of high-strength aluminum alloy materials, the protection performance is effectively improved through the reinforcing structures distributed in the radial mode, collision and damage in the driving process are resisted, the service life of the lower protection plate is prolonged, and the service life of the lower protection plate is prolonged. The lightweight design reduces the kinetic energy consumption of the automobile as much as possible while protecting the battery, improves the endurance of the automobile and saves the cost of using the automobile, the ingenious layout of the drainage holes enhances the drainage performance and prevents the damage of accumulated water to the battery, and the design of the logo mounting area improves the universality and facilitates the mounting of the enterprise logo.

Description

Technical Field

[0001] The utility model relates to the field of electric vehicle battery pack components, in particular to a lower guard plate of an automobile battery pack. Background Art

[0002] The power battery pack of new energy vehicles is generally arranged under the chassis of the vehicle. The power battery pack is exposed to a large area under the vehicle. When the vehicle presses on stones or bricks on the road during driving, these materials will splash or hit the bottom of the battery pack. When the vehicle goes uphill, the bottom of the battery pack is also easy to scrape the ground, or when passing by speed bumps or hitting curbs, it is also easy to cause damage to the bottom of the battery pack. In addition, the bottom of the battery pack is exposed to the outside for a long time and will be damaged by the strong corrosive environment of acid and alkali. These damages may affect the normal use function of the battery pack and even cause safety accidents such as thermal runaway or fire and explosion.

[0003] There are many materials for lower guard plates on the market, including plastic, steel plate and aluminum alloy. Plastic guard plates are low-cost but have poor strength; steel guard plates have good protection performance but are heavy and may affect vehicle endurance; aluminum alloy guard plates are in between the two and have better balance;

[0004] At present, in terms of lightweighting of battery packs, the main frame structure mostly adopts an aluminum alloy profile welding structure. As for the bottom guard plate of the battery pack, due to the limitation of installation space, the bottom guard plate of the battery pack often cannot be designed into a complex deep-drawn reinforced structure, but can only be designed into a flat plate with shallow rib features. This limitation leads to the bottom guard plate made of ordinary high-strength steel plates having the defects of heavy weight and poor bottom impact resistance. This type of guard plate has a simple structure and relatively single functionality, and it is necessary to improve it. Summary of the invention

[0005] The technical problem to be solved by the present invention is to address the deficiencies of the above-mentioned prior art.

[0006] Provides a lightweight, highly corrosion-resistant, high-strength, and easy-to-install automotive battery pack underbody guard.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an automobile battery pack lower guard plate, comprising a lower guard plate body, characterized in that: the lower guard plate body is circumferentially provided with a plurality of body mounting holes for locking the lower guard plate body on the body, the lower guard plate body is provided with at least two groups of reinforcement structures that are relatively arranged and radially distributed between the body mounting holes, and at least two groups of drainage holes that are spaced apart and arranged along the width direction of the lower guard plate body are provided between the two reinforcement structures.

[0008] By adopting the above technical scheme, a plurality of body mounting holes arranged on the lower guard plate body are circumferentially distributed around the lower guard plate body, and the lower guard plate body can be locked to the body heat insulation plate, floor fender and front panel lower frame strong beam guard plate of the body through these body mounting holes. The provided protective structure is at least two groups of radially distributed reinforcement structures arranged relatively to each other, which can fully protect the battery pack of the electric vehicle and prevent the battery pack from being damaged, scratched, crushed and bruised by abnormal road surface, stones and other foreign objects during driving, and at least one group of drainage holes distributed along the width direction of the lower guard plate body is provided between the two groups of reinforcement structures to improve the drainage capacity of the lower guard plate and effectively avoid the adverse effects of accumulated water on the battery pack.

[0009] The above-mentioned lower guard plate of the automobile battery pack can be further configured as follows: the reinforcement structure includes reinforcement blocks distributed in a radial shape, reinforcement ribs are distributed between two adjacent reinforcement blocks, and a logo installation area for installing a logo is provided at the center of the circle formed by each reinforcement block.

[0010] By adopting the above technical solution, the strength of the lower guard plate is effectively improved by setting reinforcement blocks and reinforcement ribs distributed between adjacent reinforcement blocks. Since the reinforcement blocks are distributed radially, they have a center area, and a logo installation area for installing various logos or corporate logos is set at the center of the circle, thereby improving the installation convenience of the product.

[0011] The above-mentioned lower guard plate of the automobile battery pack can be further configured as follows: a plurality of reinforcing rod mounting holes distributed in a straight line are provided between the drainage holes.

[0012] By adopting the above technical solution, by setting the reinforcing rod installation holes between the drainage holes of the lower guard plate body, the external reinforcing rods can be additionally installed to further improve the strength of the lower guard plate body.

[0013] The above-mentioned lower guard plate of the automobile battery pack can be further configured as follows: each reinforcement block is a triangular convex block protruding toward one side of the lower guard plate body, and the sides of adjacent triangular convex blocks are arranged in parallel.

[0014] By adopting the above technical solution, the reinforcement blocks are arranged to protrude toward one side of the lower guard plate body, and the front and back sides of the installation are easy to identify during installation. Generally, the protruding side of the protrusion faces the ground and the other side faces the battery pack. The parallel arrangement of the sides of adjacent triangular protrusions makes the processing of the reinforcement ribs designed here more convenient, while improving the strength of the guard plate.

[0015] The above-mentioned lower guard plate of the automobile battery pack can be further configured as follows: the lower guard plate body is circumferentially provided with an upwardly inclined rounded corner.

[0016] By adopting the above technical solution, by setting an upwardly inclined rounded corner, after the lower guard plate body is connected under the battery pack, the upwardly designed rounded corner can reduce the wind noise and wind resistance generated during the driving of the car. Reducing wind resistance can reduce the energy required to overcome air resistance, thereby improving the energy efficiency of electric vehicles and increasing their endurance.

[0017] The above-mentioned lower guard plate of the automobile battery pack can be further configured as follows: the logo installation area is provided with an elliptical ring body protruding upward, and the inner radial direction of the elliptical ring body is contracted away from one end of the lower guard plate body.

[0018] By adopting the above technical solution, an elliptical ring body protruding upward is provided in the logo installation area, and the elliptical logo can be directly placed in the area. Since the protection area of ​​the guard plate is large, the elliptical ribs in the middle are designed to strengthen the strength of the guard plate so that it does not sag and affect the trafficability of the car.

[0019] The above-mentioned lower guard plate of the automobile battery pack can be further configured as follows: the reinforcement structure is divided into two groups.

[0020] By adopting the above technical solution, two groups of reinforcing structures are arranged at intervals, so that the lower guard plate body is more beautiful and neat, and is easy to process.

[0021] The above-mentioned lower guard plate of the automobile battery pack can be further configured as follows: the drainage holes are divided into two groups.

[0022] By adopting the above technical solution, the two drainage holes are relatively arranged on both sides, so that the appearance of the lower guard plate body is more beautiful and the drainage capacity is also stronger.

[0023] The above-mentioned lower guard plate of a car battery pack can be further configured as follows: the lower guard plate body is made of aluminum alloy

[0024] By adopting the above technical solution, the lower guard plate body is made of high-strength aluminum alloy and is light in weight. It protects the battery pack while minimizing the load on the original vehicle, allowing the driver to travel without worries and improving the driver experience.

[0025] The beneficial effects of the utility model are as follows: the lower guard plate body is made of high-strength aluminum alloy, and the radially distributed reinforcement structure effectively improves the protection performance to resist bumps and damage during driving. While protecting the battery, the car's kinetic energy consumption is minimized as much as possible, the car's endurance is improved, and the cost of using the car is saved. The clever layout of the drainage holes enhances the drainage performance and prevents water accumulation from damaging the battery. The design of the logo installation area improves versatility and facilitates the installation of corporate logos. The setting of the reinforcement rod mounting holes allows further reinforcement of the guard plate and improves the overall strength. The design of the triangular protrusion is not only easy to process, but also optimizes the installation process. The upward tilted design of the rounded corners helps to reduce wind noise and wind resistance, improve energy efficiency and endurance, and the elliptical ring logo installation method simplifies the installation steps and reduces weight and abnormal noise.

[0026] The utility model is further described in detail below with reference to the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the structure of an embodiment of the utility model; DETAILED DESCRIPTION

[0028] like Figure 1 As shown: A lower guard plate of a vehicle battery pack, comprising a lower guard plate body 1, a plurality of body mounting holes 11 for locking the lower guard plate body 1 on the body are arranged circumferentially of the lower guard plate body 1, two groups of reinforcing structures arranged opposite to each other and distributed radially are arranged between the lower guard plate body 1 in the space surrounded by the body mounting holes 11, and two groups of drainage holes 12 arranged at intervals along the width direction of the lower guard plate body 1 are arranged between the two reinforcing structures;

[0029] A plurality of body mounting holes arranged on the lower guard plate body are circumferentially distributed around the lower guard plate body. Through these body mounting holes, the lower guard plate body can be locked on the body heat insulation plate, floor fender and front panel lower frame strong beam guard plate of the body. The provided protection structure is two sets of radially distributed reinforcement structures arranged relatively to each other, which can fully protect the battery pack of the electric vehicle and prevent the battery pack from being hit, scratched, crushed and bruised by abnormal road surface, stones and other foreign objects during driving. Two sets of reinforcement structures are arranged at intervals, so that the lower guard plate body is more beautiful and neat, and is easy to process. Two sets of drainage holes distributed at both ends along the width direction of the lower guard plate body are arranged between the two sets of reinforcement structures. The two drainage holes are arranged relatively on both sides, so that the appearance of the lower guard plate body is more beautiful and the drainage capacity is also stronger, and the drainage capacity of the lower guard plate is improved, effectively avoiding the adverse effects of water accumulation on the battery pack. The lower guard plate body is made of high-strength aluminum alloy and is light in weight. While protecting the battery pack, it reduces the load on the original vehicle as much as possible, allowing the driver to travel without worries and improving the driver's experience.

[0030] The reinforcement structure includes reinforcement blocks 13 distributed in a radial shape, and reinforcement ribs (not shown in the figure) are distributed between two adjacent reinforcement blocks 13. A logo installation area 15 for installing a logo is provided at the center of a circle formed by each reinforcement block 13;

[0031] The strength of the lower guard plate is effectively improved by providing reinforcement blocks and reinforcement ribs distributed between adjacent reinforcement blocks. Since the reinforcement blocks are distributed radially, they have a center area, at which a logo installation area for installing various logos or corporate logos is provided, thereby improving the installation convenience of the product;

[0032] A plurality of reinforcing rod mounting holes 16 are provided between the drainage holes 12 and are distributed in a straight line;

[0033] By arranging reinforcing rod mounting holes at positions between the drainage holes of the lower guard plate body, an additional external reinforcing rod can be installed to further improve the strength of the lower guard plate body;

[0034] Each reinforcement block 13 is a triangular convex block protruding toward one side of the lower guard plate body 1, and the sides of adjacent triangular convex blocks are arranged in parallel;

[0035] The reinforcement blocks are arranged to protrude toward one side of the lower guard plate body, which makes it easy to identify the front and back sides during installation. Generally, the protruding side of the protrusion faces the ground and the other side faces the battery pack. The parallel arrangement of the sides of adjacent triangular protrusions makes the processing of the reinforcement ribs designed here more convenient, while improving the strength of the guard plate.

[0036] The lower guard plate body 1 is provided with an upwardly inclined rounded corner 17 in the circumferential direction;

[0037] By adopting the above technical solution, by setting the upwardly inclined rounded corners, after the lower guard plate body is connected under the battery pack, the upwardly designed rounded corners can reduce the wind noise and wind resistance generated during the driving of the car. Reducing wind resistance can reduce the energy required to overcome air resistance, thereby improving the energy efficiency of the electric vehicle and increasing the endurance.

[0038] The logo installation area 15 is provided with an elliptical ring body 151 protruding upward, and the inner radial direction of the elliptical ring body 151 is contracted away from the end of the lower guard plate body 1;

[0039] By setting an upwardly protruding elliptical ring in the logo installation area, the elliptical logo can be directly placed in the area. Since the protection area of ​​the guard plate is large, the elliptical ribs in the middle are designed to strengthen the strength of the guard plate so that it does not sag and affect the trafficability of the car.

[0040] The beneficial effects of the utility model are as follows: the lower guard plate body is made of high-strength aluminum alloy, and the radially distributed reinforcement structure effectively improves the protection performance to resist bumps and damage during driving. The lightweight design reduces the impact on the suspension system load and maintains a good driving experience. The ingenious layout of the drainage holes enhances the drainage performance and prevents water accumulation from damaging the battery. The design of the logo installation area improves the versatility and facilitates the installation of the corporate logo. The setting of the reinforcement rod mounting hole allows further reinforcement of the guard plate and improves the overall strength. The design of the triangular protrusion is not only easy to process, but also optimizes the installation process. The upward tilted design of the rounded corners helps to reduce wind noise and wind resistance, improve energy efficiency and endurance, and the elliptical ring logo installation method simplifies the installation steps and reduces weight and abnormal noise.

Claims

1. A lower guard plate for a car battery pack, comprising a lower guard plate body, characterized in that: The lower guard plate body is circumferentially provided with a plurality of body mounting holes for locking the lower guard plate body on the body. The lower guard plate body is provided with at least two groups of reinforcing structures which are oppositely arranged and radially distributed between the body mounting holes. At least two groups of drainage holes which are spaced apart and arranged along the width direction of the lower guard plate body are provided between the two reinforcing structures.

2. The lower guard plate of a vehicle battery pack according to claim 1, characterized in that: The reinforcement structure includes reinforcement blocks distributed in a radial shape, reinforcement ribs are distributed between two adjacent reinforcement blocks, and a logo installation area for installing a logo is provided at the center of a circle formed by the reinforcement blocks.

3. The lower guard plate of an automobile battery pack according to claim 1 or 2, characterized in that: A plurality of reinforcing rod mounting holes distributed in a straight line are arranged between the drainage holes.

4. The lower guard plate of a vehicle battery pack according to claim 2, characterized in that: Each reinforcement block is a triangular convex block protruding toward one side of the lower guard plate body, and the sides of adjacent triangular convex blocks are arranged in parallel.

5. The lower guard plate of an automobile battery pack according to claim 1, 2 or 4, characterized in that: The lower guard plate body is circumferentially provided with an upwardly inclined rounded corner.

6. The lower guard plate of a vehicle battery pack according to claim 2, characterized in that: The logo installation area is provided with an elliptical ring body protruding upward, and the inner radial direction of the elliptical ring body is contracted away from one end of the lower guard plate body.

7. The lower guard plate of a vehicle battery pack according to claim 1, characterized in that: The reinforcement structure is divided into two groups.

8. The lower guard plate of a vehicle battery pack according to claim 1, characterized in that: The drainage holes are divided into two groups.

9. The vehicle battery pack lower guard plate according to claim 1 or 2 or 6 or 7 or 8, characterized in that: The lower guard plate body is made of aluminum alloy.

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