New energy automobile battery box structure

Abstract

The utility model relates to the technical field of new energy automobile battery protection, and particularly discloses a new energy automobile battery box structure which comprises a battery box body and a bottom protection plate, a cavity is formed in the bottom protection plate, a macromolecule fusion memory rubber layer is laid on the surface of the bottom of the cavity, a sealing cover is fixedly arranged at the top end of the cavity, and the side wall of the cavity is communicated with an inflation inlet. An air pressure sensor used for monitoring the pressure intensity in the cavity is fixedly arranged on the outer wall of the bottom protection plate and electrically connected with a new energy automobile master control alarm system through a data line. According to the technical scheme, the cavity filled with air pressure is formed in the bottom protection plate, when the bottom protection plate is punctured by a sharp object, the air pressure sensor detects that the air pressure value is rapidly reduced, a new energy automobile alarm system displays a bottom protection plate puncturing alarm, a driver is reminded of damage to the bottom of the battery box in time, and the risk of personal property damage is reduced.

Description

TECHNICAL FIELD

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

[0002] The new energy automobile battery box as the carrier of the battery system plays a vital role in the new energy automobile, and the battery box is a key component for carrying and protecting the power battery in the new energy automobile. It can effectively prevent the battery from being impacted, vibrated or extruded during driving, thereby ensuring the safety and stability of the battery. The battery box provides necessary support structure for the battery pack, ensuring that the battery can be firmly installed on the automobile chassis, which helps to prevent the battery from displacement or falling off during driving, thereby ensuring driving safety. The battery box usually has high sealing performance, which can effectively prevent moisture and dust from entering the battery interior, which helps to prolong the service life of the battery and prevent short circuit and other safety hazards caused by moisture or dust. The existing new energy automobile battery box bottom guard plate has the following improvable points: the bottom of the existing battery box bottom guard plate is relatively flat, and the heat dissipation contact surface needs to be improved. Secondly, after the battery box bottom guard plate is pierced by a sharp object, external oxygen continuously enters the battery interior. If it is not found, moisture is also easy to enter the battery interior during subsequent driving, which is easy to cause battery short circuit and self-ignition. Therefore, a new energy automobile battery box structure is proposed. SUMMARY

[0003] The utility model aims at providing a new energy automobile battery box structure, which solves the problems raised in the background art.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a new energy automobile battery box structure, comprising a battery box body and a bottom guard plate, the bottom guard plate is internally provided with a cavity, the bottom surface of the cavity is paved with a high-molecular polymerization memory rubber layer, the top end of the cavity is fixedly provided with a cover, the side wall of the cavity is communicatively provided with an inflation port, the outer wall of the bottom guard plate is fixedly provided with an air pressure sensor for monitoring the internal pressure of the cavity, and the air pressure sensor is electrically connected with the main control alarm system of the new energy automobile through a data line.

[0005] Further, a plurality of heat dissipation fins are horizontally and equidistantly arranged in parallel on the bottom of the outer surface of the bottom guard plate.

[0006] Further, the front end of the heat dissipation fin is vertically connected with a baffle, and the baffle is provided with a filter hole.

[0007] Further, the length direction of the heat dissipation fin is parallel to the direction of the new energy automobile, and the position of the baffle faces the head direction of the new energy automobile.

[0008] Further, the cover is fixedly connected with the inner wall of the cavity by welding, and sealing glue is laid at the connecting position of the cover and the cavity.

[0009] Further, the top of the bottom guard plate is tightly and fixedly connected with the battery box body by the pressing strip.

[0010] Compared with the prior art, the utility model has the beneficial effects as follows:

[0011] 1. The technical scheme of the application sets the cavity filled with air pressure in the bottom guard plate, when the bottom guard plate is punctured by a sharp object, the air pressure sensor detects the rapid reduction of the air pressure value, and the new energy automobile alarm system displays the alarm of the punctured bottom guard plate, timely reminds the driver of the damage of the battery box bottom, and reduces the risk of personnel and property damage.

[0012] 2. The technical scheme of the application sets a plurality of heat dissipation fins on the bottom surface of the bottom guard plate in a horizontal equidistant parallel manner, which is used for improving the contact area of the bottom guard plate and air, thereby improving the heat dissipation effect, and the entrance of the airflow into the gap between the heat dissipation fins is provided with a baffle to avoid the sundries from being clamped into the gap between the heat dissipation fins along the airflow. BRIEF DESCRIPTION OF DRAWINGS

[0013] Other features, objects and advantages of the utility model will become more apparent through the following detailed description of the non-limiting embodiments with reference to the accompanying drawings:

[0014] Fig. 1 It is a perspective view of the battery box structure of the new energy automobile;

[0015] Fig. 2 It is a sectional view of the battery box structure of the new energy automobile;

[0016] Fig. 3 It is an installation schematic view of the heat dissipation fin and the baffle.

[0017] In the drawings: 1, bottom guard plate; 2, cavity; 3, cover; 301, air inlet; 4, heat dissipation fin; 5, air pressure sensor; 6, baffle; 7, high-molecular polymeric memory rubber layer. DETAILED DESCRIPTION

[0018] The technical scheme in the embodiments of the utility model will be described clearly and completely below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.

[0019] Embodiment 1, as Figs. 1-3As shown, the utility model provides a technical scheme: a new energy automobile battery box structure, including battery box and bottom guard plate 1, bottom guard plate 1 inside is provided with cavity 2, cavity 2 bottom surface is paved with high molecule polymerization memory rubber layer 7, high molecule polymerization memory rubber layer 7 is the material of the tire inner wall of preventing puncture, can be in the time of puncture leak promptly to the leak point place and carry out closure, cavity 2 top is fixedly provided with cover 3, cavity 2 side wall is connected with the inflation port 301 of setting, bottom guard plate 1 outer wall is fixedly provided with the air pressure sensor 5 for monitoring the pressure inside cavity 2, air pressure sensor 5 is electrically connected with new energy automobile main control alarm system through data line.

[0020] In a specific embodiment of the utility model, the depth of the cavity 2 inside the bottom guard plate 1 is 10 mm, the distance from the cover 3 to the top of the cavity 2 is 3 mm, the thickness of the cover 3 is 1.5 mm, the cover 3 is welded inside the cavity 2, and then the connection between the cover 3 and the cavity 2 is sealed by sealing glue. The high-pressure pipe is connected with the inflation port 301, and the cavity 2 is filled with 2.5 Bar air pressure. The air pressure sensor 5 can monitor the air pressure value inside the cavity 2. When the bottom guard plate 1 is not damaged, the air pressure inside the cavity 2 should be maintained at 2-2.5 Bar. A plurality of heat dissipation fins 4 are horizontally and equidistantly arranged on the bottom surface of the outer surface of the bottom guard plate 1, which is used to increase the contact area of the bottom guard plate 1 and air and improve the heat dissipation effect. When the car is driving normally, the airflow flows along the direction of the heat dissipation fins 4. The baffle 6 is provided with a filter hole for filtering impurities and reducing the situation that particulate matter is stuck in the gap between the heat dissipation fins 4 along the airflow. When the bottom of the bottom guard plate 1 is punctured, the high molecule polymerization memory rubber layer 7 will quickly repair the punctured point, avoiding the continuous entry of external air into the battery box and causing the battery to self-ignite. At this time, the air pressure inside the cavity 2 will rapidly decrease in the instant of puncture. The air pressure sensor 5 transmits the signal to the new energy automobile alarm system. The new energy automobile alarm system displays the alarm of the punctured bottom guard plate 1, timely reminds the driver of the damage of the bottom of the battery box, and plays a prompt role for subsequent timely repair work, reducing the risk of personnel and property damage.

[0021] In the preferred technical scheme, a plurality of heat dissipation fins 4 are horizontally and equidistantly arranged on the bottom surface of the outer surface of the bottom guard plate 1. The front end of the heat dissipation fin 4 is vertically connected with the baffle 6, which is provided with a filter hole. The heat dissipation fin 4 is used to increase the contact area of the bottom guard plate 1 and air and improve the heat dissipation effect. The length direction of the heat dissipation fin 4 is parallel to the direction of the new energy automobile. The position of the baffle 6 is towards the head direction of the new energy automobile. When the car is driving normally, the airflow flows along the direction of the heat dissipation fin 4. The baffle 6 is provided with a filter hole for filtering impurities and reducing the situation that particulate matter is stuck in the gap between the heat dissipation fins 4 along the airflow.

[0022] In the preferred technical solution, the cover 3 is fixedly connected with the inner wall of the cavity 2 by welding, and sealing glue is laid at the connection between the cover 3 and the cavity 2, so as to improve the sealing performance of the connection between the cover 3 and the cavity 2.

[0023] In the preferred technical solution, the top of the bottom guard plate 1 is tightly and sealingly connected with the battery box body through a pressing strip, so as to sealingly assemble the bottom guard plate 1 with the battery box body.

[0024] Working principle: through the structural design of the bottom guard plate 1 at the bottom of the battery box body, the cavity 2 filled with air pressure is arranged on the bottom guard plate 1, when the bottom guard plate 1 is punctured by a sharp object, the air pressure sensor 5 detects that the air pressure value decreases rapidly, and the new energy automobile alarm system displays the alarm of the puncture of the bottom guard plate 1, so as to timely remind the driver of the damage of the bottom of the battery box, and a plurality of heat dissipation fins 4 are horizontally and equidistantly arranged on the outer surface of the bottom of the bottom guard plate 1, so as to improve the contact area between the bottom guard plate 1 and air, thereby improving the heat dissipation effect, so that the new bottom guard plate 1 structure has the functions of puncture alarm and improved heat dissipation effect.

Claims

1. A new energy automobile battery box structure, characterized in that: The utility model relates to a battery box and bottom guard plate (1), the bottom guard plate (1) inside is provided with cavity (2), the cavity (2) bottom surface is paved with polymer polymeric memory rubber layer (7), the cavity (2) top is fixedly provided with cover (3), the cavity (2) side wall is connected with the inflation mouth (301) in the arrangement, the bottom guard plate (1) outer wall is fixedly provided with the air pressure sensor (5) for monitoring the cavity (2) inside pressure, the air pressure sensor (5) is electrically connected with new energy automobile master control alarm system through data line.

2. The new energy vehicle battery box structure according to claim 1, characterized in that: The bottom guard plate (1) is provided with a plurality of heat dissipation fins (4) on the outer surface of the bottom in a transverse equidistant parallel manner.

3. The new energy vehicle battery box structure according to claim 2, characterized in that: The front end of the heat dissipation fin (4) is vertically connected with a baffle (6), and the baffle (6) is provided with a filter hole.

4. The new energy vehicle battery box structure according to claim 3, characterized in that: The length direction of the heat dissipation fin (4) is parallel to the driving direction of the new energy automobile, and the position of the baffle (6) is towards the head direction of the new energy automobile.

5. The new energy vehicle battery box structure according to claim 1, characterized in that: The cover (3) is fixedly connected with the inner wall of the cavity (2) by welding, and the cover (3) is paved with sealing glue at the connection with the cavity (2).

6. The new energy vehicle battery box structure according to claim 1, characterized in that: The top of the bottom guard plate (1) is tightly connected with the battery box by pressing and sealing.

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