New energy automobile battery pack protection bottom plate

Abstract

The utility model relates to the technical field of battery pack protection bottom plates, in particular to a new energy automobile battery pack protection bottom plate which comprises a battery pack protection bottom plate body, a bottom shell is arranged below the battery pack protection bottom plate body, an upper frame is movably clamped in the bottom shell, and a circle of butt joint frame edge is fixed to the upper end of the upper frame. Reinforcing arms making contact with the outer wall of the bottom shell are evenly fixed to the outer side of the lower end of the butt joint frame edge at intervals, straight chamfered faces are arranged at the positions, close to the left end and the right end, of the outer side of the bottom of the bottom shell, parallel reinforcing ribs are evenly and integrally arranged on the inner side of the bottom of the bottom shell at intervals, and a rubber pad is clamped to the position, above the reinforcing ribs, of the inner side of the bottom shell. According to the new energy automobile battery pack protection bottom plate, the protection shell of a new energy automobile battery pack is formed by the bottom shell and the upper frame, so that the battery pack can move upwards when being impacted by a stone body on a road surface, the impact force can be decomposed and unloaded through the chamfered surfaces arranged at the corners of the end surfaces, and the protection shell is ensured not to be easily damaged due to deformation.

Description

TECHNICAL FIELD

[0001] The utility model relates to battery pack protection bottom plate technical field, concretely is a new energy automobile battery pack protection bottom plate. BACKGROUND

[0002] The battery pack of new energy electric vehicle is one of the core components of electric vehicle, and provides power source for vehicle. The battery pack is usually arranged at the bottom of vehicle, and needs to face relatively complex working conditions. In the process of vehicle driving, the bottom of battery pack is easily impacted by external stones and other hard objects. Therefore, certain protection measures are usually arranged at the bottom of battery pack to avoid the problems of surface damage and electrolyte leakage caused by impact on battery pack. For example, the battery pack protection bottom plate of new energy automobile disclosed in publication No. CN221176515U effectively improves the strength of end shell and middle shell bottom by the arrangement of reinforcing protrusions, thereby improving the anti-impact ability of end shell and middle shell bottom and improving the protection effect on battery pack.

[0003] At present, since the battery pack is generally installed at the chassis position of vehicle, and the added protection plate is located at the outer side of battery pack, the chassis of vehicle is closer to the ground. Therefore, the vehicle will not be knocked when driving on the flat road in city. However, if the vehicle drives on the rugged road, the stone body with uneven surface will contact the front and rear ends of protection shell. Lightly, the protection shell is deformed due to concave. Heavily, the internal battery pack is damaged, so that the vehicle cannot continue to drive normally, and even the battery pack needs to be replaced and repaired, which causes great economic loss. Therefore, the battery pack protection bottom plate of new energy automobile is proposed. UTILITY MODEL CONTENTS

[0004] The utility model aims to provide a battery pack protection bottom plate of new energy automobile to solve the problems of deformation of battery pack protection shell caused by impact of road stone and damage of battery pack causing vehicle unable to drive in the market at present.

[0005] To achieve the above object, the utility model provides the following technical scheme: A new energy automobile battery pack protection bottom plate, including battery pack protection bottom plate main part, bottom shell is equipped below battery pack protection bottom plate main part, and the upper frame is hinged in the bottom shell, the upper end of the upper frame is fixed with a butt joint frame edge, and the lower end of the butt joint frame edge is uniformly spaced and fixed with the reinforcing arm in contact with the outer wall of the bottom shell, the outer side of the bottom of the bottom shell is provided with a straight chamfered surface near the left and right two ends, and the inner side of the bottom of the bottom shell is integrally provided with the reinforcing rib parallel to each other, the rubber pad is hinged on the bottom shell inner side above the reinforcing rib, and the bottom of the rubber pad is connected with the hard plate, the J-shaped rubber strip in contact with the bottom of the hard plate is also hinged between the reinforcing ribs, and the side of the J-shaped rubber strip is integrally provided with the arc-shaped rubber strip, the top of the bottom shell is uniformly spaced and provided with the damping telescopic rod fixed with the bottom of the butt joint frame edge, and the upper half of the outer wall of the damping telescopic rod is sleeved with the spring in contact with the bottom end of the butt joint frame edge.

[0006] Preferably, a constraint frame groove is formed in the inner side of the upper end of the bottom shell, and the lower end of the damping telescopic rod is fixed in the constraint frame groove.

[0007] Preferably, the outer wall of the bottom shell is fixed with a damping block corresponding to the position of the reinforcing arm, and a stroke groove for hinged connection is formed in the position where the inner wall of the reinforcing arm contacts the damping block.

[0008] Preferably, the bottom of the bottom shell is fixed with a longitudinally arranged guide rod near the inner walls of the opposite two sides, and the guide rod is movably penetrated through the rubber pad and the hard plate.

[0009] Preferably, a blind hole is formed in the position corresponding to the guide rod at the bottom end of the upper frame, and a buffer spring fixed with the top of the guide rod is also hinged in the blind hole.

[0010] Preferably, a groove for sealing ring hinging is formed in the position near the inner wall edge at the top of the butt joint frame edge, and a threaded hole is uniformly spaced and formed in the outer side of the groove at the upper end of the butt joint frame edge.

[0011] Preferably, the J-shaped rubber strip is arranged obliquely, and the J-shaped rubber strip is in contact with the side of the reinforcing rib, and the arc-shaped rubber strip is in contact with the bottom of the bottom shell.

[0012] Compared with the prior art, the utility model has the beneficial effects that:

[0013] 1. The new energy automobile battery pack protection bottom plate utilizes the bottom shell and the upper frame to form the protection shell of the new energy automobile battery pack, so that the battery pack can move upward when being hit by the road stone, the chamfered surface at the corner of the end face can decompose and release the impact force, and the protection shell will not be easily deformed and damaged.

[0014] 2. The new energy automobile battery pack protection bottom plate is internally provided with rubber pads and rubber strips, the rubber strips are separated by the reinforcing ribs and the bottom shell is reinforced, the force generated by the upward movement of the bottom shell is prevented from being directly transmitted to the battery pack, and the protection effect on the battery pack can be further improved.

[0015] 3. The new energy automobile battery pack protection bottom plate replaces the traditional integrated protection by the movable structure of the bottom shell and the upper frame, the upper frame has a space for upward movement, can cope with the force relief treatment when the road stone body is impacted, and under the assistance of the internal rubber strips, the battery pack is better protected. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a new energy automobile battery pack protection bottom plate structural schematic view of the utility model.

[0017] Figure 2 It is an upper frame and bottom shell connecting structure schematic view of the utility model of a new energy automobile battery pack protection bottom plate.

[0018] Figure 3 It is a rubber pad and bottom shell connecting structure schematic view of the utility model of a new energy automobile battery pack protection bottom plate.

[0019] Figure 4 It is a J-shaped rubber strip and bottom shell connecting structure schematic view of the utility model of a new energy automobile battery pack protection bottom plate.

[0020] Figure 5 It is a new energy automobile battery pack protection bottom plate cross section structure schematic view of the utility model.

[0021] Figure 6 It is a new energy automobile battery pack protection bottom plate of the utility model. Figure 5 It is a new energy automobile battery pack protection bottom plate structure schematic view of the utility model.

[0022] In the drawing: 1, battery pack protection bottom plate main body; 2, bottom shell; 201, straight chamfered surface; 202, constraint frame slot; 203, damping block; 3, upper frame; 301, reinforcing arm; 302, butt joint frame edge; 303, blind hole; 4, rubber pad; 401, hard plate; 5, guide rod; 501, buffer spring; 6, damping telescopic rod; 601, spring; 7, J-shaped rubber strip; 701, arc-shaped rubber strip; 8, reinforcing rib. DETAILED DESCRIPTION

[0023] Clearly, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the present application.

[0024] Please refer to Figures 1-6The utility model provides a technical scheme: a new energy automobile battery package protection bottom plate, including battery package protection bottom plate main part 1, be equipped with bottom shell 2 under battery package protection bottom plate main part 1, and the upper frame 3 is combined movably in bottom shell 2, and bottom shell 2 and upper frame 3 play rigid protection's effect, and the upper end of upper frame 3 is fixed with a circle of butt joint frame edge 302, the top of butt joint frame edge 302 is close to the recess for sealing ring combination that is set up in a circle near the inner wall edge position, and butt joint frame edge 302 upper end still is evenly spaced apart with screw hole outside the recess, this structure passes through the sealing ring and is placed in the inner circle position of butt joint frame edge 302, can make battery package protection bottom plate main part 1 seal installation, and battery package protection bottom plate main part 1 can pass through the screw hole that is set up on butt joint frame edge 302 and the chassis part of car carries out bolt fixing, realizes the reliable positioning processing of battery package protection bottom plate main part 1, and butt joint frame edge 302 lower end outside evenly spaced fixed with the reinforcing arm 301 of the contact of bottom shell 2 outer wall, and bottom shell 2 outer wall is fixed with the damping block 203 of the position corresponding with reinforcing arm 301, and the inner wall of reinforcing arm 301 and the contact position of damping block 203 are set up with the stroke groove for combined movement, this structure can carry out side shock attenuation treatment to reinforcing arm 301 through damping block 203, ensure that bottom shell 2 and reinforcing arm 301 between have the shock attenuation, and avoid the lateral shaking between bottom shell 2 and upper frame 3, the position of bottom shell 2 bottom outside close to left and right two ends is equipped with straight chamfer surface 201, and bottom shell 2 bottom inside evenly spaced integral is equipped with the reinforcing rib 8 that is parallel to each other, the rubber pad 4 is combined in bottom shell 2 inside above reinforcing rib 8, and the bottom of rubber pad 4 is connected with hard board 401, and hard board 401 makes rubber pad 4 force evenly, ensure that rubber pad 4 has shock attenuation support to battery package, the position close to the inner wall of opposite two sides in bottom shell 2 inside evenly spaced fixed with the guide rod 5 that is set longitudinally, and guide rod 5 and rubber pad 4 and hard board 401 are movably penetrated, this structure can pass through guide rod 5 and assist bottom shell 2 to rise linearly according to the trajectory of restraint, prevent horizontal or inclination to upper frame 3 and produce external force, and under the cooperation of buffer spring 501, can further play the purpose of elastic protection to battery package, the position corresponding of upper frame 3 bottom and guide rod 5 are set up with blind hole 303 in, and blind hole 303 still is combined with the buffer spring 501 of the top fixed with guide rod 5, this structure blind hole 303 is used for the movement limiting treatment of guide rod 5, ensure that when bottom shell 2 is upwardly relieved, the activity limiting effect of bottom shell 2, guide rod 5 can carry out buffer shock attenuation treatment through compression buffer spring 501, still be combined with J-shaped rubber strip 7 that the bottom contact of hard board 401 between reinforcing rib 8, and J-shaped rubber strip 7 side is integrally equipped with arc rubber strip 701, J-shaped rubber strip 7 is inclined to set, and J-shaped rubber strip 7 and reinforcing rib 8 side are in the state of resistance, and arc rubber strip 701 and bottom shell 2 bottom are in the state of resistance, this structure can make the impact force transmission to bottom shell 2 when bottom shell 2 suffers upward external force, and then through J-shaped rubber strip 7 absorption, simultaneously, J-shaped rubber strip 7 relieves external force, plays the role of elastic protection to battery package,The arc-shaped rubber strip 701 ensures that the J-shaped rubber strip 7 can be in close contact with the bottom shell 2 and the hard plate 401. The bottom shell 2 is uniformly spaced at the top and is provided with a damping telescopic rod 6 fixed at the bottom of the butt joint frame edge 302. A constraint frame groove 202 is formed in the inner side of the upper end of the bottom shell 2, and the lower end of the damping telescopic rod 6 is fixed to the constraint frame groove 202. This structure allows the bottom shell 2 and the upper frame 3 to be connected through the damping telescopic rod 6, so that the bottom shell 2 and the upper frame 3 can be damped and moved. The constraint frame groove 202 is used for the installation and positioning of the damping telescopic rod 6, and the damping telescopic rod 6 is located in the inner side of the bottom shell 2, which plays a role in aesthetics. The upper half of the outer wall of the damping telescopic rod 6 is sleeved with a spring 601 in contact with the bottom end of the butt joint frame edge 302.

[0025] Working principle: When the new energy vehicle battery pack protection bottom plate is used, first, when the vehicle advances or reverses and contacts the stone of the road, the bottom shell 2 decomposes the impact force through the straight chamfer surface 201, reduces the impact force on the bottom shell 2, and under the assistance of the internal reinforcing rib 8, the force that the bottom shell 2 can withstand is greater. The reinforcing arm 301 arranged at the bottom end of the upper frame 3 can strengthen the strength of the bottom shell 2 around, prevent the lateral deformation of the outer wall of the bottom shell 2 around, improve the service life of the bottom shell 2, and the damping block 203 is used for limiting the reinforcing arm 301. At the same time, the impact makes the bottom shell 2 generate an upward force to prevent the deformation of the bottom shell 2. At this time, the damping telescopic rod 6 is shortened and the compression spring 601 is compressed. Through the damping movement of the spring 601 and the damping telescopic rod 6, the upward force is absorbed and buffered, so that the stone can slide from the bottom end of the bottom shell 2. At this time, the J-shaped rubber strip 7 and the arc-shaped rubber strip 701 are deformed to absorb and relieve external force, ensuring that the battery pack is protected by the elastic effect. At the same time, the deformation of the J-shaped rubber strip 7 and the arc-shaped rubber strip 701 allows the hard plate 401 to have a space to drop, so that the hard plate 401 cooperates with the rubber pad 4 to protect the battery pack with an elastic effect, avoiding the damage of the battery pack caused by extrusion, so that the vehicle cannot continue to travel normally. The constraint frame groove 202 and the butt joint frame edge 302 position the damping telescopic rod 6, the guide rod 5 positions the rubber pad 4 and the hard plate 401 in the longitudinal direction, and the bottom shell 2 is assisted by the guide rod 5 to rise in a straight line according to the constraint track, preventing horizontal or inclined external force from being generated on the upper frame 3. The upper frame 3 positions the guide rod 5 through the blind hole 303, and the guide rod 5 can be buffered by the buffer spring 501 in the blind hole 303, realizing elastic protection, ensuring that the battery pack protection bottom plate main body 1 protects the battery pack with high quality, thereby completing a series of work.

[0026] Although the utility model has been explained in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or make equivalent replacement to part of the technical features, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A new energy automobile battery pack protection bottom plate, comprising a battery pack protection bottom plate main body (1), characterized in that: The bottom shell (2) is provided below the battery pack protection bottom plate body (1), and an upper frame (3) is movably clamped in the bottom shell (2), a set of butt joint frame edges (302) are fixed to the upper end of the upper frame (3), and a set of reinforcing arms (301) in contact with the outer wall of the bottom shell (2) are uniformly and spacedly fixed to the outer side of the lower end of the butt joint frame edges (302), a straight chamfer surface (201) is arranged on the outer side of the bottom of the bottom shell (2) near the left and right ends, and a set of reinforcing ribs (8) parallel to each other are integrally arranged on the inner side of the bottom of the bottom shell (2), a rubber pad (4) is clamped above the reinforcing ribs (8) on the inner side of the bottom shell (2), and a hard plate (401) is connected to the bottom of the rubber pad (4), a J-shaped rubber strip (7) in contact with the bottom of the hard plate (401) is further clamped between the reinforcing ribs (8), and an arc-shaped rubber strip (701) is integrally arranged on the side surface of the J-shaped rubber strip (7), a set of damping telescopic rods (6) are uniformly and spacedly arranged on the top of the bottom shell (2) and fixed to the bottom of the butt joint frame edges (302), and the upper half of the outer wall of the damping telescopic rod (6) is sleeved with a spring (601) in contact with the bottom end of the butt joint frame edges (302).

2. The new energy vehicle battery pack protection bottom plate according to claim 1, characterized in that: A set of constraint frame grooves (202) are arranged on the inner side of the upper end of the bottom shell (2).

3. The new energy vehicle battery pack protection bottom plate according to claim 1, characterized in that: A set of damping blocks (203) corresponding to the positions of the reinforcing arms (301) are fixed to the outer wall of the bottom shell (2), and a set of stroke grooves for movable clamping are arranged on the inner wall of the reinforcing arm (301) in contact with the damping block (203).

4. The new energy vehicle battery pack protection bottom plate according to claim 1, characterized in that: A set of longitudinally arranged guide rods (5) are uniformly and spacedly fixed to the positions near the inner walls of the opposite two surfaces of the bottom shell (2), and the guide rods (5) movably penetrate the rubber pad (4) and the hard plate (401).

5. The new energy vehicle battery pack protection bottom plate according to claim 1, characterized in that: Blind holes (303) are arranged on the bottom end of the upper frame (3) corresponding to the positions of the guide rods (5), and a set of buffer springs (501) fixed to the top of the guide rods (5) are clamped in the blind holes (303).

6. The new energy vehicle battery pack protection bottom plate according to claim 1, characterized in that: A set of grooves for clamping sealing rings are arranged on the top of the butt joint frame edges (302) near the edge of the inner wall, and a set of threaded holes are uniformly and spacedly arranged on the outer side of the grooves of the butt joint frame edges (302).

7. The new energy vehicle battery pack protection bottom plate according to claim 1, characterized in that: The J-shaped rubber strip (7) is arranged obliquely, and the J-shaped rubber strip (7) is in contact with the side surface of the reinforcing rib (8), and the arc-shaped rubber strip (701) is in contact with the bottom of the bottom shell (2).

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