Electric automobile protection structure based on metal net fire-resistant technology

Abstract

The invention relates to the technical field of electric automobile protection equipment, in particular to an electric automobile protection structure based on a metal net fire-resistant technology, which comprises a protection box, the inner wall of the left side of the protection box is rotatably connected with the outer wall of a sealing cover, fixing pieces are arranged on the front and back surfaces of the protection box, and guide columns are arranged on the tops of the fixing pieces. Clamping blocks are arranged on the front face and the back face, located over the fixing pieces, of the protection box, the inner walls of the clamping blocks are movably connected with the outer walls of the fixing columns in a sleeving mode, positioning rods are arranged on the front face and the back face of the protection box, and the metal net fire resisting technology is mainly that the flame temperature is reduced through heat conductivity, so that explosion and flame spreading are prevented; after the battery is deflagrated, heat is conducted to the flame-retardant layer and the flame-retardant cover through the protective net and the protective cover, the protective net and the protective cover which are made of the aluminum plate, the cold-roll steel plate and the metal net can greatly prolong the escape time of a driver, and meanwhile the flame-retardant layer and the flame-retardant cover can further prolong the escape time.

Description

Technical Field

[0001] This invention relates to the field of electric vehicle protection equipment technology, specifically to an electric vehicle protection structure based on metal mesh fire-resistant technology. Background Technology

[0002] Electric vehicle spontaneous combustion is characterized by its sudden onset, rapid spread, difficulty in suppression, and frequent re-ignition. According to incomplete statistics as of the end of 2024, regardless of whether the fires are caused by human factors (collisions or chassis scrapes during use, abnormal water intrusion into the battery pack, aging wiring and short circuits, improper charging, etc.) or non-human factors (battery type and defects, battery pack installation location and protection defects, unreasonable heat dissipation structure design, etc.), 99% of electric vehicle spontaneous combustion incidents originate directly from the power battery pack. When an electric vehicle spontaneously combusts, 66.7% is in motion, 22.2% is charging, and 11.1% is parked.

[0003] Currently, most electric vehicle protective structures on the market cannot effectively prevent abnormal spontaneous combustion of batteries. The time from the start of spontaneous combustion to the fire entering the passenger compartment is no more than 60 seconds, and the time available for emergency response and safe escape after discovering the fire is no more than 60 seconds, which does not provide drivers with a long enough time to escape safely. Summary of the Invention

[0004] The purpose of this invention is to provide an electric vehicle protective structure based on metal mesh fire-resistant technology to solve the problem mentioned in the background art of not providing drivers with a long enough time to escape safely. To achieve the above objective, this invention provides the following technical solution: an electric vehicle protective structure based on metal mesh fire-resistant technology, comprising a protective box, wherein the inner wall of the left side of the protective box is rotatably connected to the outer wall of a sealing cover; both the front and back of the protective box are provided with fixing plates, and a guide post is provided at the top of the fixing plates; both the front and back of the protective box directly above the fixing plates are provided with locking blocks, the inner wall of the locking blocks being movably sleeved with the outer wall of the fixing posts; both the front and back of the protective box are provided with positioning rods, the outer wall of the positioning rods being slidably connected to the outer wall of an unlocking component; the inner wall of the unlocking component being slidably connected to the outer wall of the guide post; when the unlocking component slides upward along the guide post, it can insert into the locking block and unlock the fixing post; the inner wall of the top of the protective box is slidably connected to the outer wall of a deformable component; the outer wall of the deformable component is movably abutting against the outer wall of the unlocking component; a protective component is movably inserted into the interior of the protective box; and an electric vehicle battery is installed on the inner wall of the protective component.

[0005] Preferably, the top of the protective box is provided with a sliding groove, and the inner wall of the sliding groove is slidably connected to the outer wall of the deformable component.

[0006] Preferably, the outer wall of the top of the fixing column is provided with external threads, and the fixing column can be installed on the chassis of the electric vehicle by means of a nut.

[0007] Preferably, the unlocking assembly includes a guide plate, a wedge plate, a lifting plate, and a plug-in block. The guide plate has a positioning groove inside, and the inner wall of the positioning groove is slidably connected to the outer wall of the positioning rod. One side of the guide plate is fixedly connected to one side of the wedge plate, and the front of the bottom of the guide plate is fixedly connected to the back of the lifting plate. The inner walls on both sides of the lifting plate have guide openings, and the inner walls of the guide openings are movably sleeved with the outer walls of the guide posts. The top of the lifting plate at the edge of the guide opening is fixedly connected to the bottom of the plug-in block.

[0008] Preferably, the plug-in block is tapered, and after rising along the guide post, the plug-in block can be inserted into the locking block, so that the fixing post can be disengaged from the locking block.

[0009] Preferably, the deformable component includes a sliding block, a fixed plate, a return spring, a trigger block, and a hot melt block. The outer wall of the sliding block is slidably connected to the inner wall of the sliding groove, and the top of the sliding block is fixedly connected to the bottom of the fixed plate. One side of the fixed plate is fixedly connected to one end of the return spring, and one side of the fixed plate is fixedly connected to one side of the trigger block. The left side of the trigger block movably abuts against the right side of the hot melt block, and the bottom of the hot melt block is fixedly connected to the top of the protective box.

[0010] Preferably, the hot melt block is made of ethylene-vinyl acetate material, and the hot melt block can unlock the trigger block after it melts when heated.

[0011] Preferably, a wedge block is provided on the left side of the trigger block away from the fixed plate, and the trigger block can lift the wedge plate through the wedge block.

[0012] Preferably, the protective component includes a flame-retardant layer, a flame-retardant cover, a protective net, and a protective cover. The flame-retardant cover is movably inserted into the inner wall on the left side of the flame-retardant layer, and the protective net is movably inserted into the inner wall on the left side of the protective net. An electric vehicle battery is installed inside the protective net.

[0013] Preferably, both the flame-retardant layer and the flame-retardant cover are supported by fireproof cotton, and both the protective net and the protective cover are made of a composite of metal mesh, cold-rolled steel plate and aluminum plate.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: In this invention, the metal mesh fire-resistant technology mainly utilizes thermal conductivity to reduce the flame temperature, thereby preventing explosions and flame spread. After the battery explodes, the heat is conducted through the protective mesh and protective cover to the flame-retardant layer and flame-retardant cover. The protective mesh and protective cover made of aluminum plate, cold-rolled steel plate and metal mesh can significantly extend the driver's escape time, while the flame-retardant layer and flame-retardant cover can further extend the escape time.

[0015] In this invention, when heat is conducted from the flame-retardant layer and flame-retardant cover to the protective box, the heat acts on the hot melt block, causing the hot melt block to melt and the trigger block to unlock. The reset spring begins to reset and contract, suddenly driving the fixed plate to slide. Under the guidance of the sliding block, the fixed plate slides along the sliding groove. The fixed plate slides through the trigger block. After the trigger block abuts against the wedge plate, the wedge plate drives the guide plate to move. Under the positioning action of the positioning rod, the guide plate drives the lifting plate to move upward. After the lifting plate moves upward, it will drive the plug-in block to insert into the locking block. After the plug-in block is inserted into the locking block, the fixed post is unlocked from the locking block. After the fixed post is disengaged from the locking block, the protective box is disengaged from the chassis of the car. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a cross-sectional view of the present invention; Figure 3 This is a partial structural schematic diagram of the present invention; Figure 4 This is a schematic diagram of the connection structure between the unlocking component and the deforming component of the present invention; Figure 5 This is a schematic diagram of the protective component structure of the present invention.

[0017] In the diagram: 1. Protective box; 2. Sealing cover; 3. Fixing plate; 4. Guide post; 5. Engaging block; 6. Fixing post; 7. Positioning rod; 8. Unlocking assembly; 801. Guide plate; 802. Wedge plate; 803. Lifting plate; 804. Insertion block; 9. Deformation assembly; 901. Sliding block; 902. Fixing plate; 903. Return spring; 904. Trigger block; 905. Hot melt block; 10. Protective assembly; 1001. Flame retardant layer; 1002. Flame retardant cover; 1003. Protective net; 1004. Protective cover. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] Please see Figures 1 to 5 This invention provides a technical solution: an electric vehicle protective structure based on metal mesh fire-resistant technology, including a protective box 1. The inner wall of the left side of the protective box 1 is rotatably connected to the outer wall of the sealing cover 2. Fixing plates 3 are provided on both the front and back of the protective box 1. A guide post 4 is provided on the top of the fixing plate 3. A locking block 5 is provided on both the front and back of the protective box 1 directly above the fixing plate 3. The inner wall of the locking block 5 is movably sleeved with the outer wall of the fixing post 6. A positioning rod 7 is provided on both the front and back of the protective box 1. The outer wall of the positioning rod 7 is slidably connected to the outer wall of the unlocking component 8. The inner wall of the unlocking component 8 is slidably connected to the outer wall of the guide post 4. When the unlocking component 8 slides upward along the guide post 4, it can be inserted into the locking block 5 and unlock the fixing post 6. The inner wall of the top of the protective box 1 is slidably connected to the outer wall of the deformation component 9. The outer wall of the deformation component 9 is movably abutting against the outer wall of the unlocking component 8. A protective component 10 is movably inserted into the interior of the protective box 1. An electric vehicle battery is installed on the inner wall of the protective component 10.

[0020] In this embodiment, as Figures 1 to 5 As shown, the top of the protective box 1 is provided with a sliding groove, and the inner wall of the sliding groove is slidably connected to the outer wall of the deformable component 9. The sliding groove can restrict the sliding path of the deformable component 9.

[0021] In this embodiment, as Figures 1 to 5 As shown, the outer wall of the top of the fixing post 6 is provided with external threads, and the fixing post 6 can be installed on the chassis of the electric vehicle by means of a nut. After the fixing post 6 is unlocked from the locking block 5, the protective box 1 can be detached from the chassis of the electric vehicle.

[0022] In this embodiment, as Figures 1 to 5 As shown, the unlocking component 8 includes a guide plate 801, a wedge plate 802, a lifting plate 803, and a plug-in block 804. The guide plate 801 has a positioning groove inside, and the inner wall of the positioning groove is slidably connected to the outer wall of the positioning rod 7. One side of the guide plate 801 is fixedly connected to one side of the wedge plate 802, and the front of the bottom of the guide plate 801 is fixedly connected to the back of the lifting plate 803. The inner walls on both sides of the lifting plate 803 have guide openings, and the inner walls of the guide openings are movably sleeved with the outer wall of the guide post 4. The top of the lifting plate 803 at the edge of the guide opening is fixedly connected to the bottom of the plug-in block 804. The wedge plate 802 drives the guide plate 801 to move. Under the positioning action of the positioning rod 7, the guide plate 801 drives the lifting plate 803 to move upward. After the lifting plate 803 moves upward, it will drive the plug-in block 804 to insert into the locking block 5.

[0023] In this embodiment, as Figures 1 to 5As shown, the plug-in block 804 is a conical block, and after the plug-in block 804 rises along the guide post 4, it can be inserted into the locking block 5, causing the fixing post 6 to disengage from the locking block 5. After the plug-in block 804 is inserted into the locking block 5, the fixing post 6 is unlocked from the locking block 5. After the fixing post 6 disengages from the locking block 5, the protective box 1 is disengaged from the chassis of the car.

[0024] In this embodiment, as Figures 1 to 5 As shown, the deformable component 9 includes a sliding block 901, a fixed plate 902, a return spring 903, a trigger block 904, and a hot melt block 905. The outer wall of the sliding block 901 is slidably connected to the inner wall of the sliding groove, and the top of the sliding block 901 is fixedly connected to the bottom of the fixed plate 902. One side of the fixed plate 902 is fixedly connected to one end of the return spring 903, and one side of the fixed plate 902 is fixedly connected to one side of the trigger block 904. The left side of the trigger block 904 is movably abutting against the right side of the hot melt block 905, and the bottom of the hot melt block 905 is fixedly connected to the top of the protective box 1. Heat will act on the hot melt block 905, causing the hot melt block 905 to melt and unlock the trigger block 904. The return spring 903 begins to reset and contract and suddenly drives the fixed plate 902 to slide. The fixed plate 902 slides along the sliding groove under the guidance of the sliding block 901. The fixed plate 902 slides through the trigger block 904. After the trigger block 904 abuts against the wedge plate 802.

[0025] In this embodiment, as Figures 1 to 5 As shown, the hot melt block 905 is made of ethylene-vinyl acetate material. When the hot melt block 905 is heated and melted, it can unlock the trigger block 904.

[0026] In this embodiment, as Figures 1 to 5 As shown, a wedge-shaped block is provided on the left side of the trigger block 904 away from the fixed plate 902, and the trigger block 904 can lift the wedge plate 802 through the wedge block.

[0027] In this embodiment, as Figures 1 to 5 As shown, the protective component 10 includes a flame-retardant layer 1001, a flame-retardant cover 1002, a protective net 1003, and a protective cover 1004. The flame-retardant cover 1002 is movably inserted into the inner wall on the left side of the flame-retardant layer 1001, and the protective net 1003 is movably inserted into the inner wall on the left side of the protective net 1003. The protective cover 1004 is movably inserted into the inner wall on the left side of the protective net 1003, and an electric vehicle battery is installed inside the protective net 1003. The protective net 1003 and the protective cover 1004 can significantly extend the driver's escape time, while the flame-retardant layer 1001 and the flame-retardant cover 1002 can further extend the escape time.

[0028] In this embodiment, as Figures 1 to 5As shown, both the flame-retardant layer 1001 and the flame-retardant cover 1002 are supported by fireproof cotton, and both the protective net 1003 and the protective cover 1004 are made of metal mesh, cold-rolled steel plate and aluminum plate composite. The composite manufacturing sequence of the protective net 1003 and the protective cover 1004 is from aluminum plate close to the battery to cold-rolled steel plate to metal mesh. The fire-resistant technology of metal mesh mainly uses thermal conductivity to reduce the flame temperature, thereby preventing explosion and flame spread. The aforementioned composite manufacturing sequence can maximize the driver's escape time.

[0029] The method of use and advantages of this invention: The working process of this electric vehicle protection structure based on metal mesh fire-resistant technology is as follows: like Figures 1 to 5 As shown, the metal mesh fire-resistant technology mainly uses thermal conductivity to reduce the flame temperature, thereby preventing explosion and flame spread. After the battery explodes, the heat is conducted through the protective mesh 1003 and the protective cover 1004 to the flame-retardant layer 1001 and the flame-retardant cover 1002. The protective mesh 1003 and the protective cover 1004, made of aluminum plate, cold-rolled steel plate and metal mesh, can significantly extend the driver's escape time. At the same time, the flame-retardant layer 1001 and the flame-retardant cover 1002 can further extend the escape time. When heat is conducted from the flame-retardant layer 1001 and flame-retardant cover 1002 to the protective box 1, the heat acts on the hot melt block 905, causing the hot melt block 905 to melt and the trigger block 904 to unlock. The reset spring 903 begins to reset and contract, and suddenly drives the fixed plate 902 to slide. Under the guidance of the sliding block 901, the fixed plate 902 slides along the sliding groove. The fixed plate 902 slides through the trigger block 904. After the trigger block 904 abuts against the wedge plate 802, the wedge plate 802 drives the guide plate 801 to move. Under the positioning action of the positioning rod 7, the guide plate 801 drives the lifting plate 803 to move upward. After the lifting plate 803 moves upward, it will drive the plug block 804 to insert into the locking block 5. After the plug block 804 is inserted into the locking block 5, the fixing post 6 is unlocked from the locking block 5. After the fixing post 6 is released from the locking block 5, the protective box 1 is released from the chassis of the car.

[0030] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. An electric vehicle protective structure based on metal mesh fire-resistant technology, comprising a protective box (1), wherein the inner wall of the left side of the protective box (1) is rotatably connected to the outer wall of the sealing cover (2), and fixing plates (3) are provided on both the front and back sides of the protective box (1), a guide post (4) is provided on the top of the fixing plate (3), and locking blocks (5) are provided on both the front and back sides of the protective box (1) directly above the fixing plate (3), wherein the inner wall of the locking block (5) is movably sleeved with the outer wall of the fixing post (6), and a positioning rod (7) is provided on both the front and back sides of the protective box (1), characterized in that: The outer wall of the positioning rod (7) is slidably connected to the outer wall of the unlocking component (8), and the inner wall of the unlocking component (8) is slidably connected to the outer wall of the guide post (4). When the unlocking component (8) slides upward along the guide post (4), it can be inserted into the locking block (5) and unlock the fixing post (6). The inner wall of the top of the protective box (1) is slidably connected to the outer wall of the deformation component (9). The outer wall of the deformation component (9) is movably abutted against the outer wall of the unlocking component (8). The protective component (10) is movably inserted into the interior of the protective box (1). The electric vehicle battery is installed on the inner wall of the protective component (10).

2. The electric vehicle protection structure based on metal mesh fire-resistant technology according to claim 1, characterized in that: The top of the protective box (1) is provided with a sliding groove, and the inner wall of the sliding groove is slidably connected to the outer wall of the deformable component (9).

3. The electric vehicle protective structure based on metal mesh fire-resistant technology according to claim 1, characterized in that: The outer wall of the top of the fixing column (6) is provided with external threads, and the fixing column (6) can install the protective box (1) on the chassis of the electric vehicle through the nut.

4. The electric vehicle protective structure based on metal mesh fire-resistant technology according to claim 1, characterized in that: The unlocking component (8) includes a guide plate (801), a wedge plate (802), a lifting plate (803), and a plug-in block (804). The guide plate (801) has a positioning groove inside, and the inner wall of the positioning groove is slidably connected to the outer wall of the positioning rod (7). One side of the guide plate (801) is fixedly connected to one side of the wedge plate (802), and the front of the bottom of the guide plate (801) is fixedly connected to the back of the lifting plate (803). The inner walls on both sides of the lifting plate (803) have guide openings, and the inner walls of the guide openings are movably sleeved with the outer wall of the guide post (4). The top of the lifting plate (803) at the edge of the guide opening is fixedly connected to the bottom of the plug-in block (804).

5. The electric vehicle protection structure based on metal mesh fire-resistant technology according to claim 4, characterized in that: The plug-in block (804) is a conical block, and after the plug-in block (804) rises along the guide post (4), it can be inserted into the locking block (5), so that the fixing post (6) can be disengaged from the locking block (5).

6. The electric vehicle protective structure based on metal mesh fire-resistant technology according to claim 1, characterized in that: The deformable component (9) includes a sliding block (901), a fixed plate (902), a return spring (903), a trigger block (904), and a hot melt block (905). The outer wall of the sliding block (901) is slidably connected to the inner wall of the sliding groove, and the top of the sliding block (901) is fixedly connected to the bottom of the fixed plate (902). One side of the fixed plate (902) is fixedly connected to one end of the return spring (903), and one side of the fixed plate (902) is fixedly connected to one side of the trigger block (904). The left side of the trigger block (904) is movably abutting against the right side of the hot melt block (905), and the bottom of the hot melt block (905) is fixedly connected to the top of the protective box (1).

7. The electric vehicle protective structure based on metal mesh fire-resistant technology according to claim 6, characterized in that: The hot melt block (905) is made of ethylene-vinyl acetate material. After the hot melt block (905) melts when heated, it can unlock the trigger block (904).

8. The electric vehicle protection structure based on metal mesh fire-resistant technology according to claim 6, characterized in that: The trigger block (904) has a wedge block on the left side away from the fixed plate (902), and the trigger block (904) can lift the wedge plate (802) through the wedge block.

9. The electric vehicle protective structure based on metal mesh fire-resistant technology according to claim 1, characterized in that: The protective component (10) includes a flame-retardant layer (1001), a flame-retardant cover (1002), a protective net (1003), and a protective cover (1004). The flame-retardant cover (1002) is movably inserted into the inner wall on the left side of the flame-retardant layer (1001), and the protective net (1003) is movably inserted into the inner wall of the flame-retardant layer (1001). The protective cover (1004) is movably inserted into the inner wall on the left side of the protective net (1003), and an electric vehicle battery is installed inside the protective net (1003).

10. The electric vehicle protective structure based on metal mesh fire-resistant technology according to claim 9, characterized in that: The flame-retardant layer (1001) and flame-retardant cover (1002) are both supported by fireproof cotton, and the protective net (1003) and protective cover (1004) are both made of metal mesh, cold-rolled steel plate and aluminum plate composite.

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