Modularized automobile chassis assembly armor

By using modular design and detachable connection methods, the automotive chassis armor solves the problem of high maintenance costs caused by integral design, realizes convenient assembly and individual replacement of damaged units, reduces maintenance costs and improves the stability and service life of the armor.

CN224117231UActive Publication Date: 2026-04-14山东飞超新能源科技有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
山东飞超新能源科技有限公司
Filing Date
2025-05-29
Publication Date
2026-04-14

AI Technical Summary

Technical Problem

Most existing automotive chassis armor uses an integral design, which requires replacing the entire armor when a part is damaged, resulting in high maintenance costs and material waste.

Method used

It adopts a modular unit design and a detachable connection method. It consists of a protective unit and a unit connector, which can be easily assembled and the damaged unit can be replaced individually. It uses the magnetic adsorption of strong magnetic plates and the connection screws to ensure stability and reliability.

Benefits of technology

It reduces maintenance costs, minimizes material waste, improves the stability and installation efficiency of the armor, and extends its service life.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224117231U_ABST
Patent Text Reader

Abstract

The utility model relates to the technical field of automobile chassis protection, in particular to a modularized automobile chassis assembly armor which comprises protection units and unit connecting pieces, the whole armor is composed of a plurality of sets of protection units matched with the unit connecting pieces, the whole protection units are of a square structure, and the joints of every four adjacent sets of protection units are connected through the unit connecting pieces. Each protection unit comprises an armored protection plate, the armored protection plate is of a square structure, and connecting clamping grooves of right-angle structures matched with the unit connecting pieces are formed in the four corners of the upper surface of the armored protection plate correspondingly. Each unit connecting piece comprises a cross-shaped connecting hanging plate, and the cross-shaped connecting hanging plates are arranged at the connecting positions of the four sets of adjacent armor protection plates. The whole armor is composed of the multiple sets of protection units matched with the unit connecting pieces, convenient and fast assembly of the armor is achieved through the modular unit design and the detachable connecting mode, meanwhile, when the armor is damaged, the damaged units can be independently replaced, and the maintenance cost is reduced.
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Description

Technical Field

[0001] This utility model relates to the field of automotive chassis protection technology, and more specifically, to a modular automotive chassis assembly armor. Background Technology

[0002] The automobile chassis consists of four parts: the drivetrain, the running gear, the steering system, and the braking system. The chassis's function is to support and mount the automobile engine and its various components and assemblies, shape the overall form of the vehicle, receive power from the engine, enable the vehicle to move, and ensure normal driving. As a crucial component of the vehicle, the chassis is constantly exposed to harsh environments and is susceptible to corrosion from rainwater, gravel, salt, etc., leading to rust and damage. To protect the chassis, protective armor is usually installed on its underside to reduce the damage it receives.

[0003] However, existing chassis armor mostly adopts a one-piece design. Once a part is damaged, the entire armor often needs to be replaced, which undoubtedly increases maintenance costs and material waste, resulting in high maintenance costs in the later stages. Therefore, developing a modular chassis armor assembly that is easy to assemble and replace is of great practical significance. Utility Model Content

[0004] To address the shortcomings of existing systems, the purpose of this utility model is to provide a modular automotive chassis assembly armor. Through modular unit design and detachable connection method, the armor can be easily assembled. At the same time, when the armor is damaged, the damaged unit can be replaced individually, reducing maintenance costs.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A modular automotive chassis assembly armor includes protective units and unit connectors. The armor as a whole is composed of multiple sets of protective units and unit connectors. The protective units are generally square in structure. The connection points of four adjacent sets of protective units are connected by unit connectors. The protective units are connected to the unit connectors by connecting screws.

[0007] The protective unit includes an armor plate, an inner plate, a connecting slot, a through hole, and an embedded groove. The armor plate has a square structure with an embedded groove on its upper surface. The inner plate is embedded in the embedded groove. The four corners of the upper surface of the armor plate are provided with right-angle connecting slots that are compatible with the unit connector. The bottom of the connecting slot is provided with a through hole that is compatible with the connecting screw. The connecting screw passes through the through hole and connects to the unit connector.

[0008] The unit connector includes a cross-shaped connecting plate, threaded holes, bolt holes, and fixing bolts. The cross-shaped connecting plate is located at the connection point of four adjacent armor plates. The specifications of the cross-shaped connecting plate are compatible with the specifications of the connecting slot. A bolt hole is provided at the center of the cross-shaped connecting plate, and a fixing bolt for connecting to the vehicle chassis is installed inside the bolt hole. A threaded hole for matching the connecting screw is provided at the position corresponding to the through hole on the cross-shaped connecting plate. The connecting screw passes through the through hole and screws into the threaded hole for connection.

[0009] Furthermore, a strong magnetic plate is provided at the bottom of the connecting slot, and a second strong magnetic plate, which is compatible with the specifications of the first strong magnetic plate, is embedded on the lower surface of the cross connecting plate at the position corresponding to the connecting slot. The first strong magnetic plate and the second strong magnetic plate can be connected by magnetic adsorption.

[0010] Furthermore, the connecting screw is fitted with a washer.

[0011] Furthermore, the lower surface of the armor plate is provided with a surface plate, which is bonded to the lower surface of the armor plate by a double-sided adhesive layer.

[0012] Furthermore, the armor plate is made of stainless steel plate with dimensions of 300mm×300mm×5m, the inner plate is made of silicon carbide ceramic composite plate with dimensions of 250mm×250mm×2m, and the outer plate is made of polypropylene plastic plate with a thickness of 4mm.

[0013] Furthermore, a layer of rubber buffer pads is provided on the four sides of the armor plate.

[0014] Furthermore, each of the four corners of the armor plate is provided with an arc-shaped groove adapted to the fixing bolts, and each of the four corners of the surface plate is provided with an arc-shaped slot.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. The armor in this utility model is composed of multiple protective units and unit connectors. Through modular unit design and detachable connection method, the armor can be easily assembled. At the same time, when the armor is damaged, the damaged unit can be replaced individually, reducing maintenance costs.

[0017] 2. In this utility model, the four adjacent sets of protective units are connected by unit connectors. The protective units are connected to the unit connectors by connecting screws, which facilitates the installation and disassembly of the protective units. A cross-shaped connecting plate is located at the connection of the four adjacent armor plates. The specifications of the cross-shaped connecting plate are compatible with the specifications of the connecting slot. The cross-shaped connecting plate facilitates the connection of multiple protective units into a whole by cooperating with the connecting slot. At the same time, the cross-shaped structure of the cross-shaped connecting plate can evenly bear the force from four directions, ensuring the stability and reliability of the connection. A bolt hole is opened in the center of the cross-shaped connecting plate, and a fixing bolt for connecting to the vehicle chassis is installed inside the bolt hole. The cross-shaped connecting plate is fixed to the vehicle chassis by fixing bolts, thereby fixing the entire armor to the vehicle chassis and ensuring a stable connection between the armor and the chassis.

[0018] 3. This utility model utilizes the magnetic attraction between strong magnetic plates one and two to connect the protective unit and the unit connector during installation, facilitating quick positioning of both. Before the connecting screws are fully tightened, the magnetic attraction between strong magnetic plates one and two serves as a pre-connection. This pre-connection prevents the protective unit from shifting due to accidental collisions or vibrations during installation, ensuring that the relative position between the connecting slot and the cross-shaped connecting plate remains unchanged when the connecting screws are tightened. Furthermore, when the protective unit needs to be disassembled for maintenance or replacement, the magnetic attraction of the strong magnetic plates provides connection stability, preventing the protective unit from falling off after the connecting screws are removed.

[0019] 4. In this utility model, the lower surface of the armor plate is provided with a surface protective plate. The surface protective plate can form a physical protective layer on the lower surface of the armor plate, which can protect the lower surface of the armor plate from scratches and damage, and improve the service life of the armor plate. The surface protective plate is attached to the lower surface of the armor plate by a double-sided adhesive layer. The connection method of the double-sided adhesive layer can greatly shorten the maintenance time and make the installation process simple and quick.

[0020] 5. In this utility model, a layer of rubber buffer pads is provided on the four sides of the armor plate. The rubber buffer pads can seal the gaps at the joints of different armor plates, preventing external mud, water and dust from entering the chassis through the gaps and causing corrosion. At the same time, the rubber buffer pads have a certain degree of flexibility and plasticity, which can meet the deformation requirements of the armor plate at different temperatures. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0022] Figure 2 This is a partial structural schematic diagram of the present invention.

[0023] Figure 3 This is a bottom view of a partial structure of the present invention.

[0024] Figure 4 This is a partial structural disassembly diagram of the present invention.

[0025] Figure 5 This is a schematic diagram of the protective unit in this utility model.

[0026] Figure 6 This is a schematic diagram of the bottom structure of the protective unit in this utility model.

[0027] Figure 7 This is a schematic diagram of the disassembly structure of the protective unit in this utility model.

[0028] Figure 8 This is a schematic diagram of the disassembled structure of the unit connector in this utility model.

[0029] Figure 9 This is a schematic diagram of the bottom structure of the unit connector in this utility model.

[0030] In the diagram: 1. Protective unit; 11. Armored plate; 12. Inner plate; 13. Connecting slot; 14. Rubber buffer pad; 15. Surface plate; 16. Through hole; 17. Embedded groove; 18. Strong magnetic plate one; 19. Double-sided adhesive layer; 110. Groove; 111. Arc-shaped groove; 2. Unit connector; 21. Cross-shaped connecting plate; 22. Threaded hole; 23. Bolt hole; 24. Fixing bolt; 25. Washer; 26. Connecting screw; 27. Strong magnetic plate two. Detailed Implementation

[0031] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0032] Example:

[0033] like Figures 1 to 9As shown, a modular automotive chassis armor includes protective units 1 and unit connectors 2. The armor as a whole is composed of multiple sets of protective units 1 and unit connectors 2. This modular design breaks the limitations of traditional integral chassis armor. Each protective unit 1 can be manufactured and replaced independently. When the armor is partially damaged, only the corresponding protective unit 1 needs to be replaced, without replacing the entire armor. This effectively reduces maintenance costs, reduces material waste, and solves the problem of high maintenance costs in the later stages of traditional armor. The protective unit 1 has a square structure. The connection points of four adjacent sets of protective units 1 are connected by unit connectors 2. The protective units 1 are connected to the unit connectors 2 by connecting screws 26, which facilitates the installation and removal of the protective units 1.

[0034] The protective unit 1 includes an armor plate 11, an inner armor plate 12, a connecting slot 13, a through hole 16, and an inner groove 17. The armor plate 11 has a square structure, and an inner groove 17 is provided inside its upper surface. The inner armor plate 12 is embedded inside the inner groove 17. At the four corners of the upper surface of the armor plate 11, there are right-angle connecting slots 13 that are compatible with the unit connector 2. The slots facilitate connection with the cross connecting plate 21 on the unit connector 2, and facilitate fastening the protective unit 1 and the unit connector 2 together with the connecting screws 26 to ensure the stability of the overall armor structure. The bottom of the connecting slot 13 has a through hole 16 that is compatible with the connecting screws 26. The connecting screws 26 pass through the through hole 16 and connect to the unit connector 2.

[0035] The unit connector 2 includes a cross-shaped connecting plate 21, threaded holes 22, bolt holes 23, and fixing bolts 24. The cross-shaped connecting plate 21 is located at the connection point of four adjacent armor plates 11. The specifications of the cross-shaped connecting plate 21 are compatible with the specifications of the connecting slot 13. The cross-shaped connecting plate 21 facilitates the connection of multiple protective units 1 into a whole through cooperation with the connecting slot 13. At the same time, the cross-shaped structure of the cross-shaped connecting plate 21 can evenly bear the force from four directions, ensuring the stability and reliability of the connection. A bolt is provided at the center of the cross-shaped connecting plate 21. The bolt hole 23 contains a fixing bolt 24 for connecting to the vehicle chassis. The fixing bolt 24 secures the cross-shaped connecting plate 21 to the vehicle chassis, thereby fixing the entire armor to the chassis and ensuring a stable connection between the armor and the chassis. The cross-shaped connecting plate 21 has a threaded hole 22 corresponding to the through hole 16, which is adapted to the connecting screw 26. The connecting screw 26 passes through the through hole 16 and engages with the threaded hole 22, achieving a reliable connection between the protective unit 1 and the unit connector 2. The connection method is simple and easy to implement, and the connection strength is high. This design solves the problem that existing chassis armor often uses an integral design, which often requires replacing the entire armor if a part is damaged, undoubtedly increasing maintenance costs and material waste, leading to high later maintenance costs.

[0036] In this embodiment, a strong magnetic plate 18 is provided at the bottom of the connecting slot 13. A strong magnetic plate 27, which is compatible with the specifications of the strong magnetic plate 18, is embedded on the lower surface of the cross-shaped connecting plate 21 at the position corresponding to the connecting slot 13. The strong magnetic plate 18 and the strong magnetic plate 27 can be connected by magnetic attraction. The magnetic attraction connection between the strong magnetic plate 18 and the strong magnetic plate 27 allows the protective unit 1 and the unit connector 2 to be connected during installation, and facilitates quick positioning of both. Before the connecting screw 26 is fully tightened, the magnetic attraction between the strong magnetic plate 18 and the strong magnetic plate 27 serves as a pre-connection. This pre-connection prevents the protective unit 1 from shifting due to accidental collisions or vibrations during installation, ensuring that the relative position between the connecting slot 13 and the cross-shaped connecting plate 21 remains unchanged when the connecting screw 26 is tightened. At the same time, when the protective unit 1 needs to be disassembled for maintenance or replacement, the magnetic attraction of the strong magnetic plate provides connection stability and prevents the protective unit 1 from falling off after the connecting screw 26 is removed.

[0037] In this embodiment, a washer 25 is fitted onto the connecting screw 26. The washer 25 increases the contact area between the connecting screw 26 and the armor plate 11, thereby enhancing the connection stability between the connecting screw 26 and the armor plate 11. At the same time, the washer 25 prevents the connecting screw 26 from causing excessive pressure on the armor plate 11 when tightening, avoiding problems such as cracks and deformation, thereby extending the service life of the armor plate 11 and reducing maintenance costs.

[0038] In this embodiment, a surface protective plate 15 is provided on the lower surface of the armor plate 11. The surface protective plate 15 forms a physical protective layer on the lower surface of the armor plate 11, which can protect the lower surface of the armor plate 11 from scratches and damage, and improve the service life of the armor plate 11. The surface protective plate 15 is attached to the lower surface of the armor plate 11 by a double-sided adhesive layer 19. The connection method of the double-sided adhesive layer 19 can greatly shorten the maintenance time and make the installation process simple and quick.

[0039] In this embodiment, the armor plate 11 is made of stainless steel, with dimensions of 300mm × 300mm × 5m. Stainless steel has high strength and hardness, capable of withstanding significant external impacts, effectively protecting the vehicle chassis from collisions and scratches. Simultaneously, stainless steel has excellent corrosion resistance, resisting corrosion in humid, rainy, or chemically exposed environments, extending its service life. The inner armor plate 12 is made of silicon carbide ceramic composite plate, with dimensions of 250mm × 250mm × 2m. Silicon carbide ceramic composite plate has extremely high hardness and wear resistance, resisting abrasion from road debris, gravel, and other objects. It also has excellent high-temperature resistance. During vehicle operation, the chassis may heat up due to contact with hot road surfaces or heat dissipated by the engine. The silicon carbide ceramic composite plate maintains stable performance under high-temperature conditions, without deformation or damage due to temperature increases, further enhancing the overall structural strength of the protective unit 1. The surface protective plate 15 is made of polypropylene plastic sheet with a thickness of 4mm. Polypropylene plastic sheet has good wear resistance and corrosion resistance, which can effectively protect the armor plate 11 from collisions and scratches from external objects, while resisting corrosion and extending service life.

[0040] In this embodiment, a layer of rubber buffer pads 14 is provided on the four sides of the armor plate 11. The rubber buffer pads 14 can seal the gaps at the joints of different armor plates 11, preventing external mud, water and dust from entering the chassis through the gaps and causing corrosion. At the same time, the rubber buffer pads 14 have a certain degree of flexibility and plasticity, which can meet the deformation requirements of the armor plate 11 at different temperatures.

[0041] In this embodiment, each of the four corners of the armor plate 11 is provided with an arc-shaped groove 111 that is compatible with the fixing bolt 24. The arc-shaped groove 111 can provide a clear installation position for the fixing bolt 24 and will not affect the installation of the fixing bolt 24. Each of the four corners of the surface plate 15 is provided with an arc-shaped slot 110, and the diameter of the slot 110 is larger than the diameter of the washer 25. This can provide a position for the installation of the connecting screw 26 and the washer 25 and will not interfere with the installation of the connecting screw 26 and the washer 25.

[0042] It should be noted that, in order to meet the heat dissipation requirements of the car chassis, heat dissipation holes can be opened on the protective unit 1 at the corresponding positions of the car chassis where heat dissipation is required.

[0043] The working principle of this modular automotive chassis assembly armor:

[0044] In practical use, the protective unit 1 is first assembled with the unit connector according to the specifications and dimensions of the car chassis, forming an armor suitable for the chassis dimensions. During assembly, the connecting slot 13 on the armor plate 11 of the protective unit 1 is aligned with the cross-shaped connecting plate 21 of the unit connector 2. Due to the magnetic attraction between the strong magnetic plate 18 at the bottom of the connecting slot 13 and the strong magnetic plate 27 on the lower surface of the cross-shaped connecting plate 21, the protective unit 1 will automatically adhere to the unit connector 2, achieving pre-connection and quick positioning. The connecting screw 26 is passed through the through hole 16 at the bottom of the connecting slot 13 and then screwed into the threaded hole 22 on the cross-shaped connecting plate 21. During the tightening of the connecting screw 26, the washer 25 increases the contact area between the connecting screw 26 and the armor plate 11, enhancing connection stability and preventing excessive pressure from the connecting screw 26 on the armor plate 11. Following the same method, other protective units 1 are installed on their respective unit connectors 2 in sequence, completing the installation of the entire armor. Then, the cross-shaped connecting plate 21 of the unit connector 2 is fixed to the corresponding position on the vehicle chassis using fixing bolts 24. The fixing bolts 24 pass through the bolt holes 23 at the center of the cross-shaped connecting plate 21, and the fixing bolts 24 are tightened to firmly fix the cross-shaped connecting plate 21 to the vehicle chassis;

[0045] When a damaged protective unit 1 needs to be replaced, unscrew the connecting screws 26 one by one between the damaged protective unit 1 and the unit connector 2. Due to the magnetic attraction between the first magnetic plate 18 and the second magnetic plate 27, the protective unit 1 will not fall off by itself after the connecting screws 26 are removed, but at this time the protective unit 1 and the unit connector 2 are in a detachable state. Then remove the damaged protective unit 1 and replace it with a new protective unit 1. Align the connecting slot 13 of the new protective unit 1 with the cross connecting plate 21 of the unit connector 2, and achieve pre-connection and quick positioning through the magnetic attraction between the first magnetic plate 18 and the second magnetic plate 27. Then, pass the connecting screws 26 through the through hole 16 at the bottom of the connecting slot 13 and screw them into the threaded hole 22 on the cross connecting plate 21. Tighten the connecting screws 26 to complete the installation of the new protective unit 1.

[0046] In summary, the vehicle chassis armor assembly consists of multiple protective units 1 and unit connectors 2. Through modular unit design and detachable connection method, the armor can be easily assembled. At the same time, when the armor is damaged, the damaged unit can be replaced individually, reducing maintenance costs.

[0047] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating this utility model, and are not intended to limit the implementation of this utility model. For those skilled in the art, other variations or modifications can be made based on the above description. It is impossible to exhaustively list all the implementation methods here. Any obvious variations or modifications derived from the technical solutions of this utility model are still within the protection scope of this utility model.

Claims

1. A modular automotive chassis assembly armor, characterized by: The armor consists of a protective unit (1) and a unit connector (2). The armor is composed of multiple sets of protective units (1) and unit connectors (2). The protective unit (1) is square in shape. The four adjacent sets of protective units (1) are connected by unit connectors (2). The protective unit (1) is connected to the unit connector (2) by connecting screws (26). The protective unit (1) includes an armor plate (11), an inner plate (12), a connecting slot (13), a through hole (16), and an embedded groove (17). The armor plate (11) has a square structure and an embedded groove (17) is provided inside its upper surface. The inner plate (12) is embedded inside the embedded groove (17). The four corners of the upper surface of the armor plate (11) are provided with right-angled connecting slots (13) that are compatible with the unit connector (2). The bottom of the connecting slot (13) is provided with a through hole (16) that is compatible with the connecting screw (26). The connecting screw (26) passes through the through hole (16) and connects to the unit connector (2). The unit connector (2) includes a cross-shaped connecting plate (21), a threaded hole (22), a bolt hole (23), and a fixing bolt (24). The cross-shaped connecting plate (21) is located at the connection of four adjacent armor plates (11). The specifications of the cross-shaped connecting plate (21) are compatible with the specifications of the connecting slot (13). A bolt hole (23) is provided at the center of the cross-shaped connecting plate (21). A fixing bolt (24) for connecting to the vehicle chassis is installed inside the bolt hole (23). A threaded hole (22) that is compatible with the connecting screw (26) is provided on the cross-shaped connecting plate (21) at the position corresponding to the through hole (16). The connecting screw (26) passes through the through hole (16) and is screwed into the threaded hole (22).

2. The modular automotive chassis assembly armor of claim 1, wherein: The bottom of the connecting slot (13) is provided with a strong magnetic plate one (18), and a strong magnetic plate two (27) that is compatible with the specifications of the strong magnetic plate one (18) is embedded on the lower surface of the cross connecting plate (21) at the position corresponding to the connecting slot (13). The strong magnetic plate one (18) and the strong magnetic plate two (27) can be connected by magnetic adsorption.

3. The modular automotive chassis assembly armor of claim 2, wherein: A washer (25) is fitted on the connecting screw (26).

4. The modular automotive chassis assembly armor of claim 1, wherein: The lower surface of the armor plate (11) is provided with a surface plate (15), which is attached to the lower surface of the armor plate (11) by a double-sided adhesive layer (19).

5. The modular automotive chassis assembly armor of claim 4, wherein: The armor plate (11) is made of stainless steel plate with a size of 300mm×300mm×5m. The inner armor plate (12) is made of silicon carbide ceramic composite plate with a size of 250mm×250mm×2m. The outer armor plate (15) is made of polypropylene plastic plate with a thickness of 4mm.

6. The modular automotive chassis assembly armor of claim 5, wherein: The armor plate (11) has a rubber buffer pad (14) on all four sides.

7. The modular automotive chassis assembly armor of claim 6, wherein: The armor plate (11) has arc-shaped grooves (111) at each of its four corners that are compatible with the fixing bolts (24), and the surface plate (15) has arc-shaped slots (110) at each of its four corners.