Automobile engine hood nut plate assembly
By designing protective, sound-insulating, and heat-dissipating layers on the car engine hood, and combining them with an H-shaped frame plate and a damper shock-absorbing structure, the rigidity resistance problem of existing engine hoods under impact forces has been solved, achieving higher impact resistance and better sound insulation and heat dissipation performance, and reducing the risk of accident damage.
Patent Information
- Application Number
- CN202422666488.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-01
- Publication Date
- 2026-03-06
- Estimated Expiration
- 2034-11-01
AI Technical Summary
Existing car engine hoods use rigid resistance methods with reinforcing plates and ribs when subjected to impact, which increases the risk of accident damage due to the reaction force. In addition, the material properties are limited and cannot effectively buffer impact force and dissipate heat.
An automotive engine hood nut plate assembly was designed, comprising a protective layer, a sound insulation layer, and a heat dissipation layer. It combines an H-shaped frame plate, a slide bar, a spring, and a damper to create a shock-absorbing structure. The spring and damper buffer external impact forces, the protective layer prevents corrosion, the sound insulation layer reduces noise, the heat dissipation layer evenly distributes heat, and the reinforcing ribs enhance impact resistance.
It improves the impact resistance of the engine hood, reduces the risk of secondary injury to personnel from reaction forces, enhances the multi-functional properties of the material, including sound insulation, impact resistance and heat dissipation, and extends the service life of the engine.
Smart Images

Figure CN223975387U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automotive parts, and in particular to an automotive engine hood nut plate assembly. Background Technology
[0002] The engine hood is one of the important body parts at the front of a car. It covers the engine compartment and serves to seal the engine compartment and protect the components inside. To achieve a good protective effect, the engine hood needs to have good structural strength.
[0003] A search revealed that patent CN221477284U discloses an engine hood assembly, including an engine hood with a central assembly space, assembly platforms on both sides of the engine hood, a welded connection between the assembly platforms and the engine hood, assembly holes on the assembly platforms, and a localized reinforcing component inside the engine hood. The localized reinforcing component is an internal reinforcing plate, and an internal slot is provided inside the engine hood. The internal reinforcing plate is assembled in the internal slot and has multiple reinforcing ribs.
[0004] Existing equipment uses reinforcing plates and multiple reinforcing ribs to rigidly resist the impact force borne by the engine hood assembly, which causes secondary damage to the hit personnel or vehicle due to the reaction force, increasing the probability of injury to personnel in accidents.
[0005] Therefore, it is necessary to provide an automotive engine hood nut plate assembly to solve the above-mentioned technical problems. Utility Model Content
[0006] To solve the above-mentioned technical problems, this utility model provides an automotive engine hood nut plate assembly.
[0007] This utility model provides an automobile engine hood nut plate assembly, including an automobile engine hood, two nut plates are symmetrically arranged on both sides of the bottom of the automobile engine hood, and nut holes are opened through the interior of the four nut plates. A shock-absorbing structure is provided at the top of the interior of the automobile engine hood.
[0008] The shock absorption structure includes an H-shaped frame plate welded to the top of the interior of the car engine hood. Each of the four corners of the top of the H-shaped frame plate is fixedly provided with a connecting pipe. Each of the four connecting pipes is connected to a sliding rod. Each of the four sliding rods is fixedly provided to the top of the car engine hood. Each of the four sliding rods is fitted with a spring. The top of the H-shaped frame plate and the top of the interior of the car engine hood are provided with the same damper.
[0009] In order to improve the overall performance of the automotive engine hood nut plate assembly, this utility model provides an automotive engine hood nut plate assembly, preferably in which the automotive engine hood includes a protective layer, a sound insulation layer, and a heat dissipation layer.
[0010] In order to increase the sound insulation and impact resistance of the car engine hood nut plate assembly, this utility model provides a car engine hood nut plate assembly, preferably in which a sound insulation layer is provided inside the protective layer, and a heat dissipation layer is provided inside the sound insulation layer.
[0011] In order to prevent the H-shaped frame plate from bending and damaging the engine, this utility model provides an automotive engine hood nut plate assembly. Preferably, two protective pads are symmetrically arranged at the bottom end of the H-shaped frame plate, and the thickness of the two protective pads is 5-20 mm.
[0012] In order to enhance the impact resistance of the car engine hood, this utility model provides a car engine hood nut plate assembly, preferably in which several reinforcing ribs are fixedly provided at equal intervals at both ends of the interior of the car engine hood.
[0013] To achieve convenient installation and disassembly, this utility model provides an automotive engine hood nut plate assembly, preferably with gripping grooves at the bottom of both sides of the automotive engine hood.
[0014] Compared with the prior art, the beneficial effects of this utility model are:
[0015] This new type of automotive engine hood nut plate assembly, by setting a damper, buffers the external impact force borne by the four springs. It solves the problem that existing equipment uses reinforcing plates and multiple reinforcing ribs to rigidly resist the impact force borne by the engine hood assembly, which causes secondary damage to the hit personnel or vehicle due to the reaction force, increasing the probability of injury to the person in the accident.
[0016] This new type of automotive engine hood nut plate assembly addresses the shortcomings of existing engine hoods, which are characterized by their single material properties and inability to achieve impact resistance, shock absorption, and heat dissipation, by dividing the engine hood into a protective layer, a sound insulation layer, and a heat dissipation layer. Attached Figure Description
[0017] Figure 1 A schematic diagram of a preferred embodiment of an automotive engine hood nut plate assembly provided by this utility model;
[0018] Figure 2 for Figure 1 The diagram shows the internal structure of a car engine hood.
[0019] Figure 3 for Figure 1The diagram shows a cross-sectional view of the front of the car engine hood.
[0020] Figure 4 for Figure 1 The diagram shows the structural schematic of the damping structure.
[0021] Figure 5 for Figure 2 The diagram shows the structure of structure A.
[0022] The following are the labels in the diagram: 1. Car engine hood; 101. Protective layer; 102. Sound insulation layer; 103. Heat dissipation layer; 2. Nut plate; 3. Nut hole; 4. Shock absorption structure; 401. H-shaped frame plate; 402. Connecting pipe; 403. Slide bar; 404. Spring; 405. Damper; 5. Protective pad; 6. Reinforcing rib; 7. Grip groove. Detailed Implementation
[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0024] Please refer to the following: Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 ,in, Figure 1 A schematic diagram of a preferred embodiment of an automotive engine hood nut plate assembly provided by this utility model; Figure 2 for Figure 1 The diagram shows the internal structure of a car engine hood. Figure 3 for Figure 1 The diagram shows a cross-sectional view of the front of the car engine hood. Figure 4 for Figure 1 The diagram shows the structural schematic of the damping structure. Figure 5 for Figure 2 The structural diagram of structure A shown includes a car engine cover 1. Two nut plates 2 are symmetrically arranged on both sides of the bottom of the car engine cover 1. Nut holes 3 are opened through the interior of the four nut plates 2. A shock-absorbing structure 4 is provided at the top of the interior of the car engine cover 1.
[0025] The shock absorption structure 4 includes an H-shaped frame plate 401 welded to the top of the inside of the car engine hood 1. Each of the four corners of the top of the H-shaped frame plate 401 is fixedly provided with a connector 402. Each of the four connectors 402 is connected to a slide rod 403. The tops of the four slide rods 403 are fixedly provided to the top of the car engine hood 1. Each of the four slide rods 403 is fitted with a spring 404. The top of the H-shaped frame plate 401 and the top of the inside of the car engine hood 1 are provided with the same damper 405.
[0026] It should be noted that: the car engine cover 1 inserts the four nut plates 2 at the bottom around the car engine, and uses bolts to pass through the nut holes 3 opened inside the four nut plates 2 to reinforce the four nut plates 2 on the outside of the car engine.
[0027] In the specific implementation process, refer to Figure 2 and Figure 5 As shown, the car engine hood 1 includes a protective layer 101, a sound insulation layer 102, and a heat dissipation layer 103.
[0028] The protective layer 101 uses its material properties to rigidly withstand the impact force borne by the car engine hood 1, preventing external structures from puncturing the car engine hood 1 and damaging the car engine; the sound insulation layer 102 uses its material properties to isolate the noise generated by the internal car engine during operation, greatly ensuring the precision of the car engine operation; the heat dissipation layer 103 uses its material properties to evenly absorb and distribute the heat generated by the car engine during operation, preventing the car engine from overheating and causing cylinder explosion.
[0029] It should be noted that: the protective layer 101 is made of alloy steel, the sound insulation layer 102 is made of foam, and the heat dissipation layer 103 is made of brass.
[0030] In the specific implementation process, refer to Figure 2 and Figure 5 As shown, a sound insulation layer 102 is provided inside the protective layer 101, and a heat dissipation layer 103 is provided inside the sound insulation layer 102.
[0031] The protective layer 101 prevents external corrosive substances from eroding the engine inside the car engine hood 1, thereby improving the engine's service life. The sound insulation layer 102 isolates the transmission of sound from the inside and outside, reducing noise during driving. The heat dissipation layer 103 evenly distributes the heat generated by the engine, preventing heat from concentrating in one place and causing damage to parts.
[0032] In the specific implementation process, refer to Figure 2 and Figure 4 As shown, two protective pads 5 are symmetrically arranged at the bottom of the H-shaped frame plate 401, and the thickness of the two protective pads 5 is 5-20 mm.
[0033] The two protective pads 5 buffer the downward impact force of the H-shaped frame plate 401, preventing the impact force from directly contacting the engine and causing engine damage.
[0034] It should be noted that both protective pads 5 are made of PE material.
[0035] In the specific implementation process, refer to Figure 2 and Figure 5As shown, several reinforcing ribs 6 are fixedly installed at equal intervals on both ends of the interior of the car engine hood 1.
[0036] Several reinforcing ribs 6 rigidly resist the impact force, which can increase the ability of the inner ends of the car engine hood 1 to resist external impact force and avoid the problem of collapse.
[0037] In the specific implementation process, refer to Figure 1 and Figure 2 As shown, gripping slots 7 are provided on both sides of the bottom of the car engine hood 1.
[0038] The grip slot 7 creates notches at the bottom of both sides of the car engine cover 1, making it convenient for maintenance personnel to insert their hands into the grip slot 7 to lift or lower the car engine cover 1 for installation and disassembly purposes.
[0039] It should be noted that both sides of the bottom of the two grip slots 7 are designed with rounded chamfers.
[0040] The working principle of the automobile engine hood nut plate assembly provided by this utility model is as follows:
[0041] In use, the car engine cover 1 is placed over the top of the car engine from top to bottom, and the four nut plates 2 are inserted into the designated positions. Then, bolts are inserted through the nut holes 3 inside the four nut plates 2 and fixed for reinforcement. The protective layer 101 prevents external corrosive substances from corroding the engine inside the car engine cover 1. The sound insulation layer 102 isolates the transmission of sound from the inside and outside, reducing noise during driving. The heat dissipation layer 103 evenly distributes the heat generated by the engine, preventing heat from concentrating in one place and causing damage to parts. When external impact force comes into contact with the car engine cover 1, the four sliding rods 403 compress the springs 404 and contract along the corresponding insertion pipes 402 to perform initial buffering. The damper 405 relies on the internal hydraulic oil to reduce and dissipate the impact force, preventing secondary injury to personnel from the reaction force. The two protective pads 5 buffer the downward impact force of the H-shaped frame plate 401, preventing the impact force from directly contacting the engine and causing engine damage.
[0042] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.
Claims
1. An automobile engine hood nut plate assembly comprising an automobile engine hood (1), characterized in that, The bottom of the automobile engine cover (1) is symmetrically provided with two nut plates (2) on both sides, nut holes (3) are formed in the interiors of the four nut plates (2), and a damping structure (4) is arranged at the top end of the interior of the automobile engine cover (1); The damping structure (4) comprises an H-shaped frame plate (401) welded to the top end of the interior of the automobile engine cover (1), four inserting pipes (402) are fixedly arranged at the top corners of the H-shaped frame plate (401), a sliding rod (403) is inserted into the top of each of the four inserting pipes (402), the top of each of the four sliding rods (403) is fixedly arranged at the top of the automobile engine cover (1), a spring (404) is sleeved on the outside of each of the four sliding rods (403), and the top end of the interior of the automobile engine cover (1) is provided with the same damper (405) as the top of the H-shaped frame plate (401).
2. The hood nut plate assembly of claim 1, wherein, The automobile engine cover (1) comprises a protective layer (101), a sound insulation layer (102) and a uniform heating layer (103).
3. The hood nut plate assembly of claim 2, wherein, The interior of the protective layer (101) is provided with the sound insulation layer (102), and the interior of the sound insulation layer (102) is provided with the uniform heating layer (103).
4. The hood nut plate assembly of claim 1, wherein, The bottom end of the H-shaped frame plate (401) is symmetrically provided with two protective pads (5), and the thickness of each of the two protective pads (5) is 5-20 mm.
5. The hood nut plate assembly of claim 1, wherein, A plurality of reinforcing ribs (6) are fixedly arranged at equal intervals at both ends of the interior of the automobile engine cover (1).
6. The hood nut plate assembly of claim 1, wherein, Holding notches (7) are formed at the bottom ends of the two sides of the automobile engine cover (1).
Citation Information
Patent Citations
Engine hood assembly
CN221477284U