A new energy vehicle chassis LWRT plate with a flame-retardant effect and a processing technology

Abstract

The application discloses a new energy automobile chassis LWRT plate with a fire-retardant effect and a processing technology, and relates to the technical field of automobile chassis. The plate body is provided with arc-shaped through grooves on the left and right sides of the top, the interiors of the arc-shaped through grooves are slidably provided with barrier pieces, the left and right sides of the plate body are provided with connecting strips, the side surface of the plate body is coated with a fire-retardant layer, and the lower side of the plate body is fixedly provided with a protective plate. The plate body made of glass fiber and polypropylene has excellent fire-retardant performance, higher specific strength, lower thermal conductivity, higher bending strength and impact resistance, so that when the chassis is scratched, the plate body can buffer the impact force received by the chassis, the aluminum pigment has a high melting point, can quickly absorb and disperse heat, and reduce the persistence of flame combustion, and the new energy automobile chassis is double-protected, and the harm of new energy automobile fire is reduced.

Description

Technical Field

[0001] This invention relates to the field of automotive chassis technology, and in particular to a flame-retardant LWRT board for new energy vehicle chassis and its processing technology. Background Technology

[0002] When a car is moving, some new energy vehicles with low chassis are prone to scraping, stone flying, etc. Since the battery of a new energy vehicle is installed on the upper side of the chassis, when the chassis is scraped seriously, it can easily cause the battery of the new energy vehicle to overheat and burn or explode. This is where the LWRT plate of the car chassis is needed for protection.

[0003] Existing automotive chassis protection plates are generally made of PVC chassis equipment. PVC chassis armor is relatively heavy. When the chassis of a new energy vehicle is scratched, causing the battery and other components to overheat, the PVC chassis armor is prone to melting and corrosion, which can damage the vehicle's chassis. Summary of the Invention

[0004] To address the issue mentioned above where scratches on the chassis of new energy vehicles cause overheating of batteries and other components, leading to melting and corrosion of the PVC chassis armor and subsequent damage to the vehicle's chassis, this invention provides a flame-retardant LWRT board for new energy vehicle chassis and its processing technology.

[0005] This invention provides a flame-retardant LWRT (Liquid Wave Retardant) plate for a new energy vehicle chassis and its processing technology, employing the following technical solution: A flame-retardant LWRT board for a new energy vehicle chassis includes a board body, with arc-shaped through grooves on both the left and right sides of the top of the board body. A barrier is slidably disposed inside each of the arc-shaped through grooves. Connecting strips are provided on both the left and right sides of the board body. A flame-retardant layer is coated on the side of the board body. A protective plate is fixedly disposed on the lower side of the board body.

[0006] The above technical solutions facilitate dual protection for the chassis of new energy vehicles, thereby reducing the harm caused by fires in new energy vehicles and preventing friction between cables and wires, thus reducing the possibility of fires in new energy vehicles.

[0007] Optionally, in the above-mentioned flame-retardant LWRT board for new energy vehicle chassis, the board body is L-shaped, and the board body is made of a composite material composed of melted glass fiber and polypropylene, with a mixing ratio of glass fiber to polypropylene of 2:1.

[0008] The above technical solution enables the board made of glass fiber and polypropylene to have excellent flame retardant properties, high specific strength, low thermal conductivity, and high bending strength and impact resistance.

[0009] Optionally, in the above-mentioned flame-retardant LWRT plate for a new energy vehicle chassis, limiting grooves are provided on both the front and rear sides of the inner wall of the arc-shaped through groove. The barrier includes a Chinese character-shaped block, the side of which is slidably connected to the inside of the arc-shaped through groove and the limiting groove, respectively. An L-shaped groove is provided inside the Chinese character-shaped block, and an L-shaped strip is slidably arranged inside the L-shaped groove.

[0010] The above technical solution allows the L-shaped strip to drive the insert rod upward, which quickly releases the fixation between the arc-shaped through groove and the Chinese character block, and then quickly adjusts the Chinese character block inside the arc-shaped through groove.

[0011] Optionally, in the above-mentioned flame-retardant LWRT plate for a new energy vehicle chassis, a compression spring is fixedly connected to the upper side of the L-shaped strip, the top of the compression spring is fixedly connected to the upper side of the vertical groove of the L-shaped groove, an insert rod is fixedly provided on the lower side of the horizontal bar of the L-shaped strip, and several adjustment grooves are opened on the lower side of the front limiting groove. The several adjustment grooves are equally spaced and arc-shaped on the lower side of the two front limiting grooves. The bottom end of the insert rod extends to the lower side of the L-shaped groove and contacts the interior of the adjustment groove.

[0012] The above technical solution facilitates the movement of the Chinese character-shaped block to different areas within the arc-shaped through groove by inserting the plug rod into the inner wall of different adjustment grooves. This makes it easier to organize the cables and wires passing through the plate and reduce friction between the cables and wires.

[0013] Optionally, in the above-mentioned new energy vehicle chassis LWRT plate with flame retardant effect, the flame retardant layer is made by spraying aluminum pigment with a thickness of 1mm onto the upper side of the plate.

[0014] The above technical solution enables aluminum pigments to quickly absorb and disperse heat, thereby rapidly reducing the temperature of surrounding objects and preventing the spread of fire. Furthermore, aluminum pigments have a high melting point and reflective properties, which can effectively reflect and block heat. At the same time, aluminum pigments are a good oxygen barrier, which can reduce the duration of the flame combustion reaction.

[0015] Optionally, in the above-mentioned flame-retardant LWRT plate for new energy vehicle chassis, the protective plate is made of highly flame-retardant sponge, and several wave grooves are provided on the lower side of the protective plate.

[0016] Through the above technical solution, the wavy grooves can evenly distribute the heat emitted by the battery on the upper side of the car chassis inside the protective plate, reducing the possibility of car combustion. In addition, the high flame-retardant sponge can quickly undergo a chemical reaction when it encounters a fire, producing a large amount of inert gas, forming a flame-retardant barrier to effectively isolate the fire source and prevent the fire from spreading.

[0017] Optionally, in the above-mentioned new energy vehicle chassis LWRT board with flame retardant effect, the connecting strip includes two long strips, and the two long strips and the board body are integrally formed by a mold. Three installation grooves are provided on the upper sides of the two long strips, and fixing bolts are placed inside the installation grooves.

[0018] Through the above technical solution, it is convenient to make the fixing bolt slide inside the installation groove, so as to conveniently fix the board body on the vehicle chassis with errors in partial openings.

[0019] Another technical solution proposed by the present invention: A processing technology for a new energy vehicle chassis LWRT board with flame retardant effect, comprising the following steps: S101: Heat and melt glass fiber and polypropylene, adjust to a suitable ratio, and add them into a mold for cooling and fixing into a shape, and finally take them out and place them for standby; S102: Pour aluminum chips into the interior of a ball mill by using the ball milling method, use the steel balls inside the ball mill to crush the aluminum chips into aluminum powder, then mix the aluminum powder with paint into a paste to form aluminum paint, and finally spray the aluminum paint on the side of the board body through a paint sprayer; S103: After mixing foamed sponge and flame retardant, foam the sponge, then cut the highly flame retardant sponge after foaming to a suitable size and fix it on the lower side of the board body through glue; finally, fix the integrally formed board body and the two long strips on the lower side of the vehicle chassis through fixing bolts, and the board body can be assembled on the chassis of the new energy vehicle.

[0020] In summary, the present invention has at least one of the following beneficial effects: The board body made of glass fiber and polypropylene has excellent flame retardant performance, relatively high specific strength, low thermal conductivity, and high bending strength and impact resistance. When the chassis is scratched, the impact force received by the chassis is buffered by the board body. At the same time, the aluminum pigment has a relatively high melting point, can quickly absorb and disperse heat, and reduce the persistence of flame combustion, providing double protection for the chassis of the new energy vehicle, thereby reducing the harm caused by the fire of the new energy vehicle.

[0021] By respectively moving up the two L-shaped strips, squeezing the compression spring, and moving the insertion rod out of the adjustment groove, the fixation of the middle-shaped block is released, and the middle-shaped block is slid to a suitable position in the arc-shaped through groove according to the number of cables and wires, and the L-shaped strips are relaxed, so that the L-shaped strips drive the insertion rod to move into the adjustment groove through the compression spring to fix the middle-shaped block, classifying and fixing the cables and wires passing through the chassis armor together, preventing friction between the cables and wires, and reducing the possibility of fire in the new energy vehicle.

[0022] A protective plate made of highly flame-retardant sponge is installed between the car chassis and the plate. When exposed to fire, the highly flame-retardant sponge undergoes a chemical reaction to produce inert gas, forming a flame-retardant barrier that effectively isolates the fire source and prevents the fire from spreading. At the same time, the protective plate with corrugated grooves allows the heat transferred from the car chassis to the plate to be evenly distributed through the protective plate, protecting the car chassis and further reducing the harm caused by new energy vehicles. Attached Figure Description

[0023] Figure 1 This is a front view of the three-dimensional structure of the present invention; Figure 2 This is a rear view of the three-dimensional structure of the present invention; Figure 3 This is a partial three-dimensional structural bottom view of the present invention; Figure 4 This is a partial three-dimensional top view of the present invention; Figure 5 This is a partial three-dimensional structural unfolded view of the barrier component of the present invention.

[0024] In the diagram: 1. Plate; 2. Arc-shaped through groove; 201. Limiting groove; 202. Adjusting groove; 3. Barrier component; 301. Chinese character-shaped block; 302. L-shaped groove; 303. L-shaped strip; 304. Compression spring; 305. Insert rod; 4. Connecting strip; 401. Long strip; 402. Mounting groove; 403. Fixing bolt; 5. Flame retardant layer; 6. Protective plate; 601. Corrugated groove. Detailed Implementation

[0025] The following is in conjunction with the appendix Figure 1-5 The present invention will be described in further detail below.

[0026] Please refer to the attached diagram in the instruction manual. Figure 1-5 An embodiment of the present invention provides a new energy vehicle chassis LWRT plate with flame retardant effect, comprising a plate body 1, arc-shaped through grooves 2 on both the left and right sides of the top of the plate body 1, a barrier 3 slidably disposed inside the arc-shaped through grooves 2, connecting strips 4 on both the left and right sides of the plate body 1, a flame retardant layer 5 coated on the side of the plate body 1, and a protective plate 6 fixedly disposed on the lower side of the plate body 1.

[0027] See the attached diagram in the instruction manual. Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5The shape of the plate 1 is L-shaped, and the plate 1 is a composite material made of glass fiber and polypropylene after melting. The mixing ratio of glass fiber and polypropylene is 2:1. The plate 1 made of glass fiber and polypropylene has excellent flame retardant properties, high specific strength, low thermal conductivity, and high bending strength and impact resistance.

[0028] See the attached diagram in the instruction manual. Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 Limiting grooves 201 are provided on both the front and rear sides of the inner wall of the arc-shaped through groove 2. The blocking component 3 includes a Chinese character-shaped block 301. The side of the Chinese character-shaped block 301 is slidably connected to the arc-shaped through groove 2 and the limiting groove 201 respectively. An L-shaped groove 302 is provided inside the Chinese character-shaped block 301. An L-shaped strip 303 is slidably provided inside the L-shaped groove 302. By driving the insertion rod 305 upward through the L-shaped strip 303, the fixation between the arc-shaped through groove 2 and the Chinese character-shaped block 301 can be quickly released, and the Chinese character-shaped block 301 can be quickly adjusted inside the arc-shaped through groove 2.

[0029] See the attached diagram in the instruction manual. Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 A compression spring 304 is fixedly connected to the upper side of the L-shaped strip 303. The top of the compression spring 304 is fixedly connected to the upper side of the vertical groove of the L-shaped groove 302. A rod 305 is fixedly installed on the lower side of the horizontal bar of the L-shaped strip 303. Several adjustment grooves 202 are opened on the lower side of the front limiting groove 201. Several adjustment grooves 202 are equally spaced and arc-shaped on the lower side of the two front limiting grooves 201. The bottom end of the rod 305 extends to the lower side of the L-shaped groove 302 and contacts the inside of the adjustment groove 202. When the rod 305 is inserted into the inner wall of different adjustment grooves 202, it is convenient to move the Chinese character block 301 to different areas inside the arc-shaped through groove 2, thereby facilitating the arrangement of the cables and wires passing through the plate 1 and reducing the friction between the cables and wires.

[0030] See the attached diagram in the instruction manual. Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 The flame retardant layer 5 is made of aluminum pigment with a thickness of 1mm sprayed on the upper side of the plate 1. The aluminum pigment can quickly absorb and disperse heat, thereby quickly reducing the temperature of the surrounding objects and preventing the fire from spreading. In addition, the aluminum pigment has a high melting point and reflective properties, which can effectively reflect and block heat. At the same time, the aluminum pigment is a good oxygen barrier, which can reduce the duration of the flame combustion reaction.

[0031] See the attached diagram in the instruction manual. Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 The protective plate 6 is made of high flame-retardant sponge. Several wave grooves 601 are opened on the lower side of the protective plate 6. The wave grooves 601 can evenly distribute the heat emitted by the battery on the upper side of the car chassis inside the protective plate 6, reducing the possibility of car combustion. In addition, the high flame-retardant sponge can quickly undergo chemical reaction when it encounters fire, producing a large amount of inert gas, forming a flame-retardant barrier to effectively isolate the fire source and prevent the fire from spreading.

[0032] See the attached diagram in the instruction manual. Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 The connecting strip 4 includes two long strips 401, which are integrally formed with the plate 1 by a mold. Each of the two long strips 401 has three mounting slots 402 on its upper side. Fixing bolts 403 are placed inside the mounting slots 402. By setting the mounting slots 402, the fixing bolts 403 can slide inside them, which makes it easier to fix the plate 1 to the car chassis where some openings have errors.

[0033] In summary, the plate 1, made of glass fiber and polypropylene, has excellent flame retardant properties, high specific strength, low thermal conductivity, and high bending strength and impact resistance. This allows the plate 1 to buffer the impact force on the chassis in the event of a scrape. Furthermore, by spraying aluminum pigment onto the sides of the plate 1, which has a high melting point and can quickly absorb and disperse heat, the duration of flame combustion is reduced. This dual protection of the new energy vehicle chassis reduces the hazards of fires in new energy vehicles.

[0034] By moving the two L-shaped bars 303 upwards, the compression spring 304 is compressed, and the insertion rod 305 moves out of the adjustment groove 202, thereby releasing the fixed state of the Chinese character block 301. Next, according to the number of cables and wires, the Chinese character block 301 is slid into the appropriate position inside the arc-shaped through groove 2. Then, the L-shaped bars 303 are released, and the L-shaped bars 303, through the rebound force of the compression spring 304, drive the insertion rod 305 downwards to reset and move into the adjustment groove 202 to fix the Chinese character block 301. Then, the wires and cables passing through the chassis armor can be classified and fixed together to prevent friction between the cables and wires and reduce the possibility of fire in new energy vehicles.

[0035] A protective plate 6 made of high flame-retardant sponge material is installed between the car chassis and the plate 1. When the high flame-retardant sponge encounters a fire, it can quickly undergo a chemical reaction to produce a large amount of inert gas, forming a flame-retardant barrier to effectively isolate the fire source and prevent the fire from spreading. At the same time, the protective plate with a corrugated groove 601 can evenly disperse the heat transferred from the car chassis to the plate 1 through the protective plate 6, thereby protecting the car chassis and further reducing the harm caused by new energy vehicles.

[0036] To better demonstrate a flame-retardant LWRT (Liquid Wood Reinforced Terrain) sheet for a new energy vehicle chassis, this embodiment proposes a processing technology for a flame-retardant LWRT sheet for a new energy vehicle chassis, including the following steps: Step 1: Heat and melt glass fiber and polypropylene, adjust to a suitable ratio, add to a mold for cooling and fixing, and finally remove and set aside for later use.

[0037] Step 2: Aluminum shavings are poured into the ball mill using a ball milling method. The steel balls inside the ball mill crush the aluminum shavings into aluminum powder. The aluminum powder is then mixed with paint to form a paste, which is then used to spray the aluminum paint onto the side of the plate 1 using a paint sprayer.

[0038] Step 3: After mixing foamed sponge with flame retardant, the sponge is foamed. Then, the foamed high flame retardant sponge is cut to a suitable size and fixed to the underside of the plate 1 with glue. Finally, the plate 1 and the two strips 401 are fixed to the underside of the car chassis with fixing bolts 403, so that the plate 1 can be assembled on the chassis of the new energy vehicle.

[0039] The above are all preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, all equivalent changes made in accordance with the structure, shape and principle of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A processing technology for a flame-retardant LWRT plate for a new energy vehicle chassis, characterized in that: The LWRT chassis plate for new energy vehicles includes a plate body (1). Arc-shaped through grooves (2) are provided on both the left and right sides of the top of the plate body (1). A barrier (3) is slidably installed inside each arc-shaped through groove (2). Connecting strips (4) are provided on both the left and right sides of the plate body (1). A flame-retardant layer (5) is applied to the side of the plate body (1). A protective plate (6) is fixedly installed on the lower side of the plate body (1). The plate body (1) is L-shaped and is made of a composite material composed of melted glass fiber and polypropylene, with a mixing ratio of glass fiber to polypropylene of 2:

1. The arc-shaped through grooves (2)... Limiting grooves (201) are provided on both the front and back sides of the inner wall. The barrier (3) includes a Chinese character-shaped block (301). The sides of the Chinese character-shaped block (301) are slidably connected to the inside of the arc-shaped through groove (2) and the limiting groove (201). An L-shaped groove (302) is provided inside the Chinese character-shaped block (301). An L-shaped strip (303) is slidably provided inside the L-shaped groove (302). The connecting strip (4) includes two long strips (401). Three mounting grooves (402) are provided on the upper side of each of the two long strips (401). Fixing bolts (403) are placed inside the mounting grooves (402). The manufacturing process of LWRT plates for new energy vehicle chassis includes the following steps: S101: Heat and melt glass fiber and polypropylene, adjust to a suitable ratio, add to a mold for cooling and fixing, and finally take it out for later use. S102: Aluminum chips are poured into the ball mill by ball milling, and the aluminum chips are crushed into aluminum powder by steel balls inside the ball mill. Then the aluminum powder is mixed with paint to form a paste, forming aluminum paint. Finally, the aluminum paint is sprayed onto the side of the plate (1) by paint sprayer. S103: After mixing foamed sponge with flame retardant, the sponge is foamed. Then, the foamed high flame retardant sponge is cut to a suitable size and fixed to the lower side of the plate (1) with glue. Finally, the plate (1) is assembled on the chassis of the new energy vehicle by fixing the integrally formed plate (1) and two strips (401) to the lower side of the car chassis with fixing bolts (403).

2. The processing technology of the flame-retardant LWRT plate for new energy vehicle chassis according to claim 1, characterized in that: A compression spring (304) is fixedly connected to the upper side of the L-shaped bar (303). The top end of the compression spring (304) is fixedly connected to the upper side of the vertical groove of the L-shaped groove (302). A plug rod (305) is fixedly provided on the lower side of the horizontal bar of the L-shaped bar (303). Several adjustment grooves (202) are opened on the lower side of the front limiting groove (201). Several adjustment grooves (202) are equally spaced and arc-shaped on the lower side of the two front limiting grooves (201). The bottom end of the plug rod (305) extends to the lower side of the L-shaped groove (302) and contacts the interior of the adjustment groove (202).

3. The processing technology of the flame-retardant LWRT plate for new energy vehicle chassis according to claim 1, characterized in that: The flame retardant layer (5) is made by spraying aluminum pigment with a thickness of 1 mm onto the upper side of the plate (1).

4. The processing technology of the flame-retardant LWRT plate for new energy vehicle chassis according to claim 1, characterized in that: The protective plate (6) is made of high flame-retardant sponge, and several wave grooves (601) are provided on the lower side of the protective plate (6).

5. The processing technology of the flame-retardant LWRT plate for new energy vehicle chassis according to claim 1, characterized in that: The two strips (401) and the plate (1) are integrally formed by molding with a mold.

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