Automobile battery pack protection device

Abstract

The utility model belongs to the technical field of battery pack protection, and particularly relates to an automobile battery pack protection device which comprises a chassis armor body. Two telescopic rods are fixedly connected to the bottom of the chassis armor body; two damping springs are fixedly connected to the bottom of the chassis armor body; the two damping springs are fixedly connected to the exteriors of the corresponding telescopic rods; protective plates are fixedly connected to the end parts of the two telescopic rods; the ends of the two damping springs are fixedly connected to the top of the protection plate. Two first springs are fixedly connected to the top of the protection plate; the two first springs are oppositely arranged; the first spring is obliquely arranged; the ends of the two first springs are fixedly connected with supporting rods. Multiple sets of elastic cloth are fixedly connected between the supporting rods and the protection plate, impact on the chassis armor body in the using process can be effectively reduced through the protection plate, damage to a battery pack caused by impact on the chassis armor body can be effectively reduced, and the problem that short circuit occurs in a battery or electrolyte leakage occurs can be effectively solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of battery pack protection, in particular to a vehicle battery pack protection device. Background Art

[0002] The automotive battery pack is the core component of new energy vehicles. The automotive battery pack is mainly responsible for storing and providing electrical energy. The automotive battery pack is usually composed of multiple battery cells connected in series and parallel to form a battery system with large capacity and high voltage.

[0003] The automotive battery pack is a key component of the vehicle's power system. The automotive battery pack is mainly composed of key parts such as battery modules, structural systems, electrical systems and thermal management systems. Each part cooperates and works together to provide stable and efficient power support for new energy vehicles.

[0004] The chassis armor of new energy vehicles provides a certain degree of protection for the battery pack, but when the car is hit, the impact on the chassis armor can easily cause damage to the battery pack, leading to internal short circuits in the battery and fires.

[0005] To this end, the utility model provides a vehicle battery pack protection device. Utility Model Content

[0006] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0007] The utility model adopts the following technical scheme to solve the technical problem: the utility model discloses a vehicle battery pack protection device, comprising a chassis armor body; two telescopic rods are fixedly connected to the bottom of the chassis armor body; two damping springs are fixedly connected to the outside of the corresponding telescopic rods; protective plates are fixedly connected to the ends of the two telescopic rods; the ends of the two damping springs are fixedly connected to the top of the protective plate; two first springs are fixedly connected to the top of the protective plate; the two first springs are arranged opposite to each other; the first springs are arranged obliquely; the ends of the two first springs are fixedly connected to support rods; a plurality of groups of elastic cloths are fixedly connected between the support rods and the protective plate, and the protective plate can effectively reduce the impact of the chassis armor body during use, effectively reduce the damage to the battery pack caused by the impact of the chassis armor body, effectively reduce the problem of short circuit or electrolyte leakage inside the battery, and effectively reduce the splash of sand and gravel generated during the driving of the car, effectively reduce the impact of the splash of sand and gravel on the bottom of the chassis armor body, effectively increase the stability and reliability of the car during driving, effectively increase the service life of the chassis armor body and the battery pack, and effectively reduce the maintenance and replacement costs of the chassis armor body and the battery pack.

[0008] Preferably, multiple groups of elastic plates are fixedly connected to the top of the support rod; the multiple groups of elastic plates are arranged opposite to each other; an elastic band is fixedly connected between two adjacent elastic plates, and the elastic plates can effectively increase the sealing of the battery pack protection, effectively reduce the entry of moisture, dust and other external impurities into the battery pack, effectively reduce the entry of dust, impurities and moisture into the battery pack, and cause short circuit or damage inside the battery, which can effectively increase the service life and performance of the battery, thereby effectively maintaining the stability of battery operation.

[0009] Preferably, the middle portion of the protective plate is hollow; a plurality of groups of first through holes are provided at the bottom of the protective plate; a plurality of groups of second through holes are provided at the top of the protective plate; the first through holes and the second through holes are staggered, and the contact area between the battery pack and the outside air can be effectively increased through the first through holes and the second through holes, so that air can circulate, and when the air flows through the first through holes and the second through holes, it can take away the heat generated by the battery, thereby effectively reducing the temperature of the battery pack, effectively reducing the high temperature generated when the battery is working, effectively reducing the problem of heat accumulation in local areas of the battery pack causing battery damage, and effectively reducing the degradation of battery performance caused by uneven heat distribution.

[0010] Preferably, a drain pipe is fixedly connected to the bottom of the chassis armor body; a plurality of drain holes are provided in the middle of the drain pipe; a water inlet pipe is fixedly connected to the middle of the drain pipe; the middle of the water inlet pipe passes through the bottom of the protective plate, and dust, impurities or sand and gravel can be effectively washed away by spraying water on the protective plate, which can effectively reduce the accumulation of dust, impurities and sand and gravel on the surface and inside of the protective plate, effectively reduce the blockage problem caused by the accumulation of dust, impurities and sand and gravel, and can effectively reduce the decrease in heat dissipation efficiency caused by blockage, and can effectively reduce the problem of cleaning difficulties caused by dust accumulation, and effectively increase the cleaning efficiency.

[0011] Preferably, two through slots are provided in the middle of the chassis armor body; a plurality of groups of second springs are fixedly connected to the top of the chassis armor body; a plurality of groups of second springs are fixedly connected near the ends of the through slots; two ends of the second springs are fixedly connected with heat conducting plates, through which the heat of the battery pack can be effectively conducted out, and the heat generated by the battery during operation can be effectively conducted out quickly, so that the battery can be effectively kept within a suitable operating temperature range, and the risk of thermal runaway or explosion caused by excessive internal temperature of the battery pack can be effectively reduced, and the problem of battery capacity attenuation and shortened life in a high temperature environment can be effectively reduced, and the heat can be effectively conducted out to reduce the degradation of vehicle performance due to battery overheating, and the working efficiency and service life of the battery can be effectively improved.

[0012] Preferably, a filter is installed in the middle of the first through hole; the filter is fixedly connected to the middle of the first through hole, and the filter can effectively reduce the entry of dust and sand into the interior of the protective plate, and can effectively reduce the blockage caused by sand and gravel entering the first through hole, thereby reducing the heat dissipation effect of the first through hole, and can effectively reduce the problem of wear caused by sand and gravel entering the interior, and effectively reduce the damage to internal parts caused by the entry of sand and gravel and dust impurities, thereby effectively increasing the stability and protection performance of the equipment.

[0013] The beneficial effects of the utility model are as follows:

[0014] 1. The automobile battery pack protection device described in the utility model can effectively reduce the impact of the chassis armor body during use through the protective plate, can effectively reduce the damage of the battery pack caused by the impact of the chassis armor body, can effectively reduce the problem of short circuit or electrolyte leakage inside the battery, and can effectively reduce the splash of sand and gravel generated during the driving of the car, effectively reduce the impact of sand and gravel splashing on the bottom of the chassis armor body, effectively increase the stability and reliability of the car during driving, effectively increase the service life of the chassis armor body and the battery pack, and effectively reduce the maintenance and replacement costs of the chassis armor body and the battery pack.

[0015] 2. The automobile battery pack protection device described in the utility model can effectively increase the sealing of the battery pack protection through the elastic plate, effectively reduce the entry of moisture, dust and other external impurities into the battery pack, effectively reduce the entry of dust, impurities and moisture into the battery pack that may cause short circuit or damage inside the battery, and can effectively increase the service life and performance of the battery, thereby effectively maintaining the stability of the battery operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The utility model will be further described below in conjunction with the accompanying drawings.

[0017] Figure 1 It is a three-dimensional diagram of a vehicle battery pack protection device in the utility model;

[0018] Figure 2 It is a structural schematic diagram of the protective plate in the utility model;

[0019] Figure 3 It is a structural schematic diagram of the elastic plate in the utility model;

[0020] Figure 4 It is a structural schematic diagram of the heat conducting plate in the utility model;

[0021] Figure 5 It is a structural schematic diagram of the first through hole in the utility model;

[0022] In the figure: 1. telescopic rod; 11. damping spring; 12. protective plate; 13. first spring; 14. support rod; 15. elastic cloth; 2. elastic plate; 21. elastic band; 3. first through hole; 31. second through hole; 4. drain pipe; 41. drain hole; 42. water inlet pipe; 5. through groove; 51. second spring; 52. heat conducting plate; 6. filter; 8. chassis armor body. DETAILED DESCRIPTION

[0023] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0024] like Figure 1 , Figure 2 , Figure 5 As shown, a vehicle battery pack protection device described in an embodiment of the utility model includes a chassis armor body 8; two telescopic rods 1 are fixedly connected to the bottom of the chassis armor body 8; two damping springs 11 are fixedly connected to the outside of the corresponding telescopic rods 1; two ends of the telescopic rods 1 are fixedly connected to a protective plate 12; the ends of the two damping springs 11 are fixedly connected to the top of the protective plate 12; two first springs 13 are fixedly connected to the top of the protective plate 12; the two first springs 13 are arranged oppositely; the first spring 13 is inclined; the ends of the two first springs 13 are fixedly connected to a support rod 14; a plurality of groups of elastic cloth 15 are fixedly connected between the support rod 14 and the protective plate 12. When working, the chassis armor body 8 is installed on the bottom of the battery pack by bolts, and the support rod 14 is attached to the bottom of the car. During the installation process, the support rod 14 is squeezed and elastically contracted by the two first springs 13. At this time, the multiple groups of elastic cloth 15 elastically contract as the support rod 14 moves, and protection is provided by the elastic cloth 15. The damping spring 11 and the telescopic rod 1 absorb the impact force of external objects on the protective plate 12. The protective plate 12 can effectively reduce the impact on the chassis armor body 8 during use, and can effectively reduce the damage to the battery pack caused by the impact on the chassis armor body 8, and can effectively reduce the problem of short circuit or electrolyte leakage inside the battery, and can effectively reduce the splash of sand and gravel generated during the driving of the car, effectively reduce the impact of sand and gravel splashing on the bottom of the chassis armor body 8, effectively increase the stability and reliability of the car during driving, effectively increase the service life of the chassis armor body 8 and the battery pack, and effectively reduce the maintenance and replacement costs of the chassis armor body 8 and the battery pack.

[0025] like Figure 1 and Figure 3As shown, multiple groups of elastic plates 2 are fixedly connected to the top of the support rod 14; the multiple groups of elastic plates 2 are arranged oppositely; an elastic band 21 is fixedly connected between two adjacent elastic plates 2. During operation, when the support rod 14 fits against the bottom of the car, it enters the bottom gap through part of the elastic plate 2. When part of the elastic plate 2 does not enter the middle of the gap, the elastic plate 2 will be squeezed and bent through elasticity to fit against the bottom of the car. At the same time, the elastic band 21 is elastically stretched. The elastic plate 2 can effectively increase the sealing of the battery pack protection, effectively reduce the entry of moisture or dust and other external impurities into the battery pack, effectively reduce the entry of dust, impurities and moisture into the battery pack, and cause short circuit or damage inside the battery, which can effectively increase the service life and performance of the battery, thereby effectively maintaining the stability of battery operation.

[0026] like Figure 2 and Figure 5 As shown, the middle part of the protective plate 12 is hollow; a plurality of first through holes 3 are provided at the bottom of the protective plate 12; a plurality of second through holes 31 are provided at the top of the protective plate 12; the first through holes 3 and the second through holes 31 are staggered. When working, the battery pack generates heat, and the heat first enters the middle part of the protective plate 12 through the second through holes 31, and then discharges the heat through the first through holes 3. The first through holes 3 and the second through holes 31 can effectively increase the contact area between the battery pack and the outside air, and allow air to circulate. When the air flows through the first through holes 3 and the second through holes 31, it can take away the heat generated by the battery, thereby effectively reducing the temperature of the battery pack, effectively reducing the high temperature generated by the battery during operation, effectively reducing the problem of heat accumulation in a local area of ​​the battery pack causing battery damage, and effectively reducing the uneven heat distribution causing battery performance degradation.

[0027] like Figure 5 As shown, a drain pipe 4 is fixedly connected to the bottom of the chassis armor body 8; a plurality of drain holes 41 are provided in the middle of the drain pipe 4; a water inlet pipe 42 is fixedly connected to the middle of the drain pipe 4; the middle of the water inlet pipe 42 passes through the bottom of the protective plate 12. When working, the end of the water inlet pipe 42 is connected to the water pipe, and the inside of the water tank drain pipe 4 is poured in. The water flows through the plurality of drain holes 41 for spraying. After the water washes the protective plate 12, it enters the inside of the protective plate 12 through the second through hole 31, and then is discharged through the first through hole 3. By spraying water on the protective plate 12, dust, impurities or sand and gravel can be effectively washed away, and the accumulation of dust, impurities and sand and gravel on the surface and inside of the protective plate 12 can be effectively reduced, and the blockage problem caused by the accumulation of dust, impurities and sand and gravel can be effectively reduced. The heat dissipation efficiency is reduced effectively due to the blockage, and the problem of cleaning difficulty caused by dust accumulation can be effectively reduced, and the cleaning efficiency is effectively increased.

[0028] like Figure 1 , Figure 2 , Figure 4 As shown, two through slots 5 are provided in the middle of the chassis armor body 8; a plurality of groups of second springs 51 are fixedly connected to the top of the chassis armor body 8; a plurality of groups of second springs 51 are fixedly connected near the end of the through slot 5; two ends of the second springs 51 are fixedly connected with heat conducting plates 52. When the chassis armor body 8 is installed at the bottom of the battery pack, the top of the heat conducting plate 52 is in contact with the battery pack. When the heat conducting plate 52 is squeezed during the installation of the chassis armor body 8, the second spring 51 elastically contracts, and the heat conducting plate 52 moves into the through slot 5. The heat of the battery pack can be effectively exported through the heat conducting plate 52, and the heat generated by the battery during operation can be effectively exported quickly, so that the battery can be effectively kept within a suitable operating temperature range, effectively reducing the risk of thermal runaway or explosion caused by excessive temperature inside the battery pack, and effectively reducing the problem of battery capacity attenuation and shortened life in a high temperature environment. The heat is effectively exported to reduce the degradation of vehicle performance caused by battery overheating, and effectively improve the working efficiency and service life of the battery.

[0029] like Figure 5 As shown, a filter screen 6 is installed in the middle of the first through hole 3; the filter screen 6 is fixedly connected to the middle of the first through hole 3. During operation, when dust and sand and gravel splash into the first through hole 3, the filter screen 6 is used to block them. The filter screen 6 can effectively reduce the dust and sand and gravel from entering the protective plate 12, and can effectively reduce the sand and gravel from entering the first through hole 3 to cause blockage, thereby reducing the heat dissipation effect of the first through hole 3, and can effectively reduce the problem of wear caused by sand and gravel entering the interior, and effectively reduce the damage to internal parts caused by the entry of sand and gravel and dust impurities, thereby effectively increasing the stability and protection performance of the equipment.

[0030] When working, the chassis armor body 8 is installed at the bottom of the battery pack by bolts, and fits the bottom of the car through the support rod 14. During the installation of the chassis armor body 8, the support rod 14 is squeezed and elastically contracted by the two first springs 13. At this time, the multiple groups of elastic cloth 15 elastically contract as the support rod 14 moves, and the elastic cloth 15 is used for protection, and the impact force of external objects on the protective plate 12 is absorbed by the damping spring 11 and the telescopic rod 1. When the support rod 14 fits the bottom of the car, it enters the bottom gap through part of the elastic plate 2. When the part of the elastic plate 2 does not enter the middle of the gap, the elastic plate 2 will be squeezed and bent by elasticity to fit the bottom of the car. At the same time, the elastic belt 21 is elastically stretched, and the battery pack is working. Heat is generated, and the heat first enters the middle of the protective plate 12 through the second through hole 31, and then is discharged through the first through hole 3. The end of the water inlet pipe 42 is connected to the water pipe, and the water tank drain pipe 4 is poured into the inside. The water flows through multiple sets of drainage holes 41 for spraying. After the water flow rinses the protective plate 12, it enters the inside of the protective plate 12 through the second through hole 31, and then is discharged through the first through hole 3. When the chassis armor body 8 is installed at the bottom of the battery pack, the top of the heat conducting plate 52 is in contact with the battery pack. When the heat conducting plate 52 is squeezed during the installation of the chassis armor body 8, it is elastically contracted by the second spring 51, and the heat conducting plate 52 moves into the through groove 5. When dust and sand and gravel splash into the first through hole 3, they are blocked by the filter 6.

[0031] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A vehicle battery pack protection device, comprising a chassis armor body (8); characterized in that: Two telescopic rods (1) are fixedly connected to the bottom of the chassis armor body (8); two damping springs (11) are fixedly connected to the outside of the corresponding telescopic rods (1); protective plates (12) are fixedly connected to the ends of the two telescopic rods (1); the ends of the two damping springs (11) are fixedly connected to the top of the protective plate (12); two first springs (13) are fixedly connected to the top of the protective plate (12); the two first springs (13) are arranged opposite to each other; the first springs (13) are arranged obliquely; the ends of the two first springs (13) are fixedly connected to support rods (14); and a plurality of sets of elastic cloth (15) are fixedly connected between the support rods (14) and the protective plate (12).

2. The automotive battery pack protection device according to claim 1, characterized in that: A plurality of groups of elastic plates (2) are fixedly connected to the top of the support rod (14); the plurality of groups of elastic plates (2) are arranged opposite to each other; and an elastic band (21) is fixedly connected between two adjacent elastic plates (2).

3. The automotive battery pack protection device according to claim 2, characterized in that: The middle of the protective plate (12) is hollow; the bottom of the protective plate (12) is provided with a plurality of groups of first through holes (3); the top of the protective plate (12) is provided with a plurality of groups of second through holes (31); the first through holes (3) and the second through holes (31) are arranged in a staggered manner.

4. The automotive battery pack protection device according to claim 3, characterized in that: A filter screen (6) is installed in the middle of the first through hole (3); the filter screen (6) is fixedly connected to the middle of the first through hole (3).

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