Power battery protection device of electric car

Abstract

The utility model discloses a power battery protection device of an electric car, which belongs to the technical field of electric cars and is characterized by comprising a first protection shell, a second protection shell is arranged at the bottom of the first protection shell, a partition plate is arranged in an inner cavity of the second protection shell, and a clamping component is arranged on the right side of the inner cavity of the second protection shell. A first connecting block is welded to the bottom of the surface of the first protective shell, a second connecting block is welded to the top of the surface of the second protective shell, a fixing bolt is arranged at the top of the first connecting block, and the bottom of the fixing bolt sequentially penetrates through the first connecting block and the second connecting block; the bottom of the surface of the fixing bolt is in threaded connection with a fixing nut, so that the problem that the power battery of the existing electric car is damaged by collision or bottom collision in the running process of the electric car due to the fact that effective protection measures cannot be taken on the power battery is solved, and economic loss and potential safety hazards are brought to a car owner.

Description

Technical Field

[0001] The utility model relates to the technical field of electric cars, in particular to a power battery protection device for electric cars. Background Art

[0002] Power batteries are the power source for tools, mostly referring to the batteries that power electric vehicles, electric trains, electric bicycles, and golf carts. Power batteries are the core components of new energy vehicles and an important direction for future energy transformation.

[0003] At present, the Chinese patent with announcement number CN212267220U provides a power battery pack protection device, which includes: a frame screwed crossbeam, a power battery pack bottom supporting bracket, and a protective plate; the front end of the protective plate is fixedly connected to the frame screwed crossbeam; the rear end of the protective plate is fixedly connected to the front end of the power battery pack bottom supporting bracket; the power battery pack is located on the power battery pack bottom supporting bracket, and the power battery pack is fixedly connected to the power battery pack bottom supporting bracket. Through the above-mentioned power battery pack protection device, the structure is reasonable and the cost is low. It can effectively prevent the power battery from being deformed and the impact caused by vehicle collision or plug-in, so that the deformation of the battery pack and the damage caused by environmental erosion are minimized, which can effectively protect the battery pack to a certain extent and improve driving safety.

[0004] When an electric car is driving, a power battery is needed to provide a power source. The power batteries of existing electric cars lack effective protection measures, which may cause damage to the power batteries in the event of collisions or bottom bumps during the driving of the electric car, thereby causing economic losses and safety hazards to the car owners. Utility Model Content

[0005] The utility model provides a power battery protection device for an electric car, aiming to solve the problem that the power battery of the existing electric car has no effective protection measures, which may cause collision or bottom bump during the driving of the electric car to damage the power battery, thereby causing economic losses and safety hazards to the car owner.

[0006] The utility model is implemented as follows: a power battery protection device for an electric car comprises a first protective shell, a second protective shell is arranged at the bottom of the first protective shell, a partition is arranged in the inner cavity of the second protective shell, a clamping assembly is arranged on the right side of the inner cavity of the second protective shell, a first connecting block is welded at the bottom of the surface of the first protective shell, a second connecting block is welded at the top of the surface of the second protective shell, a fixing bolt is arranged at the top of the first connecting block, the bottom of the fixing bolt passes through the first connecting block and the second connecting block in sequence, a fixing nut is threadedly connected at the bottom of the surface of the fixing bolt, a reinforced anti-knock plate is arranged at the bottom of the second protective shell, a plurality of buffer assemblies are arranged on the top of the reinforced anti-knock plate, and positioning assemblies used in conjunction with the reinforced anti-knock plate are arranged on both sides of the second protective shell;

[0007] The clamping assembly comprises a fixing spring and a clamping plate, the right side of the fixing spring is bolted to the right side of the inner wall of the second protective shell, and the left side of the fixing spring is bolted to the right side of the clamping plate.

[0008] In order to achieve the effect of buffering the reinforced anti-knock plate when a collision occurs at the bottom of the vehicle, as a preferred power battery protection device for an electric car of the utility model, the buffer assembly includes a first fixed ring, a damping telescopic rod, a buffer spring and a second fixed ring, the top of the first fixed ring is bolted to the bottom of the second protective shell, the top of the damping telescopic rod is bolted to the bottom of the first fixed ring, the bottom of the damping telescopic rod is bolted to the top of the second fixed ring, the buffer spring is sleeved on the surface of the damping telescopic rod, the top of the buffer spring is bolted to the bottom of the first fixed ring, the bottom of the buffer spring is bolted to the top of the second fixed ring, and the bottom of the second fixed ring is bolted to the top of the reinforced anti-knock plate.

[0009] In order to achieve the effect of positioning and supporting the reinforced anti-knock plate, as a preferred power battery protection device for an electric car of the utility model, the positioning assembly includes a positioning block, a positioning rod and a limiting ring. The positioning block is bolted to the second protective shell on one side close to the second protective shell, the bottom of the positioning rod is bolted to the top of the reinforced anti-knock plate, the top of the positioning rod passes through the positioning block, and the bottom of the limiting ring is bolted to the top of the positioning rod.

[0010] In order to facilitate wiring and dissipate heat from the battery, as a preferred power battery protection device for an electric car of the utility model, wiring openings are provided on both sides of the first protective shell, and heat dissipation holes are provided on the top of the first protective shell and the bottom of the second protective shell.

[0011] In order to achieve the effect of separating the batteries, as a preferred power battery protection device for an electric car of the utility model, the number of the partitions is several and they are evenly distributed in the inner cavity of the second protective shell, and rubber pads are bonded on both sides of the partitions.

[0012] In order to facilitate the movement of the partition, as a preferred power battery protection device for an electric car of the utility model, the front and rear sides of the partition are bolted with sliders, and the front and rear sides of the inner wall of the second protective shell are provided with sliding grooves for use with the sliders, and the side of the slider close to the inner wall of the sliding groove is in contact with the inner wall of the sliding groove.

[0013] In order to achieve the effect of connecting and fixing the first connecting block and the second connecting block, as a preferred power battery protection device for an electric car of the utility model, fixing holes for use with fixing bolts are provided around the tops of the first connecting block and the second connecting block, and the surface of the fixing bolts contacts the inner wall of the fixing hole.

[0014] In order to achieve the effect that the positioning rod can slide in the inner cavity of the positioning block, as a preferred power battery protection device for an electric car of the utility model, a positioning through hole is opened at the bottom of the positioning block for use with the positioning rod, and the surface of the positioning rod contacts the inner wall of the positioning through hole.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] The power battery protection device of the electric car is provided with a first protective shell, a second protective shell, a partition, a clamping assembly, a first connecting block, a second connecting block, fixing bolts, fixing nuts, a reinforced anti-knock plate, a buffer assembly, and a positioning assembly. When in use, the power battery is installed in the inner cavity of the second protective shell, and the batteries are separated from each other by the partition, and the batteries are auxiliary clamped and fixed by the clamping assembly, so as to prevent collision between batteries. Then the first protective shell is covered, and the first connecting block and the second connecting block are connected and fixed by fixing bolts and fixing nuts. By installing the reinforced anti-knock plate, the protection effect can be enhanced when the bottom of the vehicle is bumped during driving. By installing the buffer assembly, a buffer effect can be achieved when the vehicle is bumped. By installing the positioning assembly, the reinforced anti-knock plate can be positioned and auxiliary supported. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is the overall structure diagram of the power battery protection device of the electric car of the utility model;

[0018] Figure 2 This is a disassembled structural diagram of the first protective shell and the second protective shell in the utility model;

[0019] Figure 3 This is a structural diagram of the partition in the utility model;

[0020] Figure 4 This is a structural diagram of the reinforced anti-knock plate and buffer component in the utility model;

[0021] Figure 5 It is a structural diagram of the positioning component in the utility model;

[0022] Figure 6 It is a structural diagram of the positioning block in the utility model.

[0023] In the figure, 1. first protective shell; 2. second protective shell; 3. partition; 4. clamping assembly; 401. fixing spring; 402. clamping plate; 5. first connecting block; 6. second connecting block; 7. fixing bolt; 8. fixing nut; 9. reinforced anti-knock plate; 10. buffer assembly; 1001. first fixing ring; 1002. damping telescopic rod; 1003. buffer spring; 1004. second fixing ring; 11. positioning assembly; 1101. positioning block; 1102. positioning rod; 1103. limiting ring; 12. wiring port; 13. heat dissipation hole; 14. rubber pad; 15. slider; 16. slide groove; 17. fixing hole; 18. positioning through hole. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0025] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, in the description of the present invention, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0026] See also Figure 1-6The utility model provides a technical solution: a power battery protection device for an electric car, comprising a first protective shell 1, a second protective shell 2 is arranged at the bottom of the first protective shell 1, a partition 3 is arranged in the inner cavity of the second protective shell 2, a clamping assembly 4 is arranged on the right side of the inner cavity of the second protective shell 2, a first connecting block 5 is welded at the bottom of the surface of the first protective shell 1, a second connecting block 6 is welded at the top of the surface of the second protective shell 2, a fixing bolt 7 is arranged at the top of the first connecting block 5, the bottom of the fixing bolt 7 passes through the first connecting block 5 and the second connecting block 6 in sequence, a fixing nut 8 is threadedly connected at the bottom of the surface of the fixing bolt 7, a reinforced anti-knock plate 9 is arranged at the bottom of the second protective shell 2, a plurality of buffer assemblies 10 are arranged on the top of the reinforced anti-knock plate 9, and positioning assemblies 11 used in conjunction with the reinforced anti-knock plate 9 are arranged on both sides of the second protective shell 2;

[0027] The clamping assembly 4 includes a fixing spring 401 and a clamping plate 402 . The right side of the fixing spring 401 is bolted to the right side of the inner wall of the second protective shell 2 , and the left side of the fixing spring 401 is bolted to the right side of the clamping plate 402 .

[0028] In this embodiment: by setting a first protective shell 1, a second protective shell 2, a partition 3, a clamping assembly 4, a first connecting block 5, a second connecting block 6, a fixing bolt 7, a fixing nut 8, a reinforced anti-knock plate 9, a buffer assembly 10, and a positioning assembly 11, when in use, by installing the power battery in the inner cavity of the second protective shell 2, and separating the batteries from each other by the partition 3, and auxiliary clamping and fixing the batteries by the clamping assembly 4, it is possible to prevent collisions between batteries, and then cover the first protective shell 1, and connect and fix the first connecting block 5 and the second connecting block 6 by the fixing bolts 7 and the fixing nuts 8. By strengthening the installation of the anti-knock plate 9, it can play a role in strengthening protection when the bottom of the vehicle is bumped during driving. By installing the buffer assembly 10, it can play a buffering effect when bumped. By installing the positioning assembly 11, the reinforced anti-knock plate 9 can be positioned and auxiliary supported.

[0029] As a technical optimization solution of the utility model, the buffer assembly 10 includes a first fixing ring 1001, a damping telescopic rod 1002, a buffer spring 1003 and a second fixing ring 1004. The top of the first fixing ring 1001 is bolted to the bottom of the second protective shell 2, the top of the damping telescopic rod 1002 is bolted to the bottom of the first fixing ring 1001, the bottom of the damping telescopic rod 1002 is bolted to the top of the second fixing ring 1004, the buffer spring 1003 is sleeved on the surface of the damping telescopic rod 1002, the top of the buffer spring 1003 is bolted to the bottom of the first fixing ring 1001, the bottom of the buffer spring 1003 is bolted to the top of the second fixing ring 1004, and the bottom of the second fixing ring 1004 is bolted to the top of the reinforced anti-knock plate 9.

[0030] In this embodiment: by setting the first fixing ring 1001 and the second fixing ring 1004, the buffer spring 1003 and the damping telescopic rod 1002 can be fixed, and by setting the buffer spring 1003 and the damping telescopic rod 1002, the reinforced anti-knock plate 9 can be buffered when a bump occurs to the bottom of the vehicle.

[0031] As a technical optimization solution of the utility model, the positioning assembly 11 includes a positioning block 1101, a positioning rod 1102 and a limiting ring 1103. The positioning block 1101 is bolted to the second protective shell 2 on one side close to the second protective shell 2, the bottom of the positioning rod 1102 is bolted to the top of the reinforced anti-knock plate 9, the top of the positioning rod 1102 passes through the positioning block 1101, and the bottom of the limiting ring 1103 is bolted to the top of the positioning rod 1102.

[0032] In this embodiment: by setting the positioning block 1101, the positioning rod 1102 can be positioned, and by setting the positioning rod 1102, the position of the reinforced anti-knock plate 9 can be positioned by the positioning block 1101, and by setting the limiting ring 1103, the position of the positioning rod 1102 can be limited and the reinforcing anti-knock plate 9 can be supported by the positioning block 1101.

[0033] As a technical optimization solution of the present invention, both sides of the first protective shell 1 are provided with cable outlets 12 , and the top of the first protective shell 1 and the bottom of the second protective shell 2 are provided with heat dissipation holes 13 .

[0034] In this embodiment, the cable arrangement port 12 is provided to facilitate the connection between the battery and the vehicle for cable arrangement, and the heat dissipation holes 13 are provided to allow the battery to dissipate heat.

[0035] As a technical optimization solution of the present invention, there are several partitions 3 evenly distributed in the inner cavity of the second protective shell 2 , and rubber pads 14 are bonded to both sides of the partitions 3 .

[0036] In this embodiment, the batteries can be separated from each other by providing the partition 3, and the batteries can be protected by providing the rubber pad 14.

[0037] As a technical optimization solution of the utility model, sliders 15 are bolted to the front and rear sides of the partition 3, and slide grooves 16 for use with the sliders 15 are provided on the front and rear sides of the inner wall of the second protective shell 2, and the side of the slider 15 close to the inner wall of the slide groove 16 is in contact with the inner wall of the slide groove 16.

[0038] In this embodiment, the partition plate 3 can be conveniently moved by providing the slider 15 and the slide groove 16 .

[0039] As a technical optimization solution of the utility model, fixing holes 17 for use with fixing bolts 7 are opened around the tops of the first connecting block 5 and the second connecting block 6, and the surface of the fixing bolts 7 contacts the inner wall of the fixing holes 17.

[0040] In this embodiment, the fixing hole 17 is provided so that the fixing bolt 7 can pass through the first connecting block 5 and the second connecting block 6 and connect and fix the first connecting block 5 and the second connecting block 6 through the fixing nut 8 .

[0041] As a technical optimization solution of the utility model, a positioning through hole 18 for use with the positioning rod 1102 is opened at the bottom of the positioning block 1101, and the surface of the positioning rod 1102 contacts the inner wall of the positioning through hole 18.

[0042] In this embodiment, the positioning through hole 18 is provided so that the positioning rod 1102 can move in the inner cavity of the positioning block 1101 .

[0043] Working principle: First, by installing the power battery in the inner cavity of the second protective shell 2, the batteries are separated from each other by the partition 3, and the batteries and the partition 3 are moved closer to the left side, and then the force released after the compression of the fixing spring 401 generates a thrust on the clamping plate 402, and the battery is assisted by the clamping plate 402 to clamp and fix the battery, so that the collision between the batteries can be prevented by separating and clamping the batteries, and then the first protective shell 1 is covered, and the first connecting block 5 and the second connecting block 6 are connected and fixed by the fixing bolts 7 and the fixing nuts 8. By strengthening the installation of the anti-knock plate 9, it can play a role in strengthening protection when the bottom of the vehicle is bumped during driving. By installing the damping telescopic rod 1002 and the buffer spring 1003, it can play a buffering effect on the reinforced anti-knock plate 9 when it is bumped.

[0044] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A power battery protection device for an electric car, comprising a first protection shell (1), characterized in that: A second protective shell (2) is arranged at the bottom of the first protective shell (1), a partition (3) is arranged in the inner cavity of the second protective shell (2), a clamping assembly (4) is arranged on the right side of the inner cavity of the second protective shell (2), a first connecting block (5) is welded at the bottom of the surface of the first protective shell (1), a second connecting block (6) is welded at the top of the surface of the second protective shell (2), a fixing bolt (7) is arranged at the top of the first connecting block (5), the bottom of the fixing bolt (7) passes through the first connecting block (5) and the second connecting block (6) in sequence, a fixing nut (8) is threadedly connected at the bottom of the surface of the fixing bolt (7), a reinforced anti-knock plate (9) is arranged at the bottom of the second protective shell (2), a plurality of buffer assemblies (10) are arranged at the top of the reinforced anti-knock plate (9), and positioning assemblies (11) used in conjunction with the reinforced anti-knock plate (9) are arranged on both sides of the second protective shell (2); The clamping assembly (4) comprises a fixing spring (401) and a clamping plate (402), wherein the right side of the fixing spring (401) is bolted to the right side of the inner wall of the second protective shell (2), and the left side of the fixing spring (401) is bolted to the right side of the clamping plate (402).

2. The power battery protection device for an electric car according to claim 1, characterized in that: The buffer assembly (10) comprises a first fixing ring (1001), a damping telescopic rod (1002), a buffer spring (1003) and a second fixing ring (1004); the top of the first fixing ring (1001) is bolted to the bottom of the second protective shell (2); the top of the damping telescopic rod (1002) is bolted to the bottom of the first fixing ring (1001); the bottom of the damping telescopic rod (1002) is bolted to the top of the second fixing ring (1004); the buffer spring (1003) is sleeved on the surface of the damping telescopic rod (1002); the top of the buffer spring (1003) is bolted to the bottom of the first fixing ring (1001); the bottom of the buffer spring (1003) is bolted to the top of the second fixing ring (1004); and the bottom of the second fixing ring (1004) is bolted to the top of the reinforced anti-knock plate (9).

3. The power battery protection device for an electric car according to claim 1, characterized in that: The positioning assembly (11) comprises a positioning block (1101), a positioning rod (1102) and a limiting ring (1103); the positioning block (1101) is bolted to the second protective shell (2) at a side close to the second protective shell (2); the bottom of the positioning rod (1102) is bolted to the top of the reinforced anti-knock plate (9); the top of the positioning rod (1102) passes through the positioning block (1101); and the bottom of the limiting ring (1103) is bolted to the top of the positioning rod (1102).

4. The power battery protection device for an electric car according to claim 1, characterized in that: Both sides of the first protective shell (1) are provided with cable outlets (12), and the top of the first protective shell (1) and the bottom of the second protective shell (2) are provided with heat dissipation holes (13).

5. The power battery protection device for an electric car according to claim 1, characterized in that: The partitions (3) are in multiple numbers and are evenly distributed in the inner cavity of the second protective shell (2), and rubber pads (14) are bonded to both sides of the partitions (3).

6. The power battery protection device for an electric car according to claim 1, characterized in that: The front and rear sides of the partition (3) are both bolted with sliders (15), and the front and rear sides of the inner wall of the second protective shell (2) are both provided with sliding grooves (16) for use with the sliders (15), and the side of the slider (15) close to the inner wall of the sliding groove (16) contacts the inner wall of the sliding groove (16).

7. The power battery protection device for an electric car according to claim 1, characterized in that: The tops of the first connecting block (5) and the second connecting block (6) are each provided with fixing holes (17) for use with fixing bolts (7), and the surface of the fixing bolts (7) is in contact with the inner wall of the fixing hole (17).

8. The power battery protection device for an electric car according to claim 3, characterized in that: The bottom of the positioning block (1101) is provided with a positioning through hole (18) for use with the positioning rod (1102), and the surface of the positioning rod (1102) is in contact with the inner wall of the positioning through hole (18).

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