Sound insulation pad for engine cover

Abstract

The utility model discloses a sound insulation pad of an engine cover cap, relates to the field of sound insulation of automobile engines, and provides the following scheme aiming at the problems that when an existing engine is started, large vibration is generated, so that a structure for installing the sound insulation pad falls off, the sound insulation pad needs to be detected frequently, and heat dissipation on sound insulation is slow. The heat dissipation device comprises a first mounting plate, a second mounting plate and a connecting bolt, the first mounting plate is arranged above the second mounting plate, a first sound insulation pad is arranged on the first mounting plate, a second sound insulation pad is arranged at the bottom of the second mounting plate, a heat dissipation plate is arranged above the first sound insulation pad, a heat dissipation groove is formed in the heat dissipation plate, and the connecting bolt is arranged in the heat dissipation groove. A baffle is arranged at the bottom of the second sound insulation pad and coated with a flame retardant. The sound insulation pad is novel in structure, the sound insulation pad is matched with the damper through the buffer springs, so that shaking of the structure is reduced, heat is absorbed through the heat dissipation plate, and the heat is rapidly dissipated through the heat dissipation grooves.

Description

Technical Field

[0001] The utility model relates to the field of automobile engine sound insulation, in particular to an engine hood sound insulation pad. Background Art

[0002] Car sound insulation is an effective means to eliminate and block the noise from the cab, such as engine noise, vibration, door resonance, friction noise generated by the road surface during driving, air resistance, etc. Car sound insulation can produce noise of different frequencies for different parts of the car, and combine different materials to achieve the purpose of noise reduction. The engine sound insulation can isolate the engine noise, giving us a quiet in-car environment, so that we can concentrate on driving safely and comfortably without being affected by noise.

[0003] The engine is usually soundproofed by sound insulation pads, but when the engine is started, there will be a large vibration, which will cause the structure where the sound insulation pads are installed to fall off. They need to be inspected frequently, and the heat from the sound insulation dissipates slowly. Utility Model Content

[0004] The utility model provides an engine hood sound insulation pad, which solves the existing problems.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A sound insulation pad for an engine hood comprises a first mounting plate, a second mounting plate and a connecting bolt, wherein the first mounting plate is arranged above the second mounting plate, a first sound insulation pad is arranged on the first mounting plate, a second sound insulation pad is arranged at the bottom of the second mounting plate, a heat sink is arranged above the first sound insulation pad, a heat sink is arranged on the heat sink with a heat sink groove, a baffle is arranged at the bottom of the second sound insulation pad, a flame retardant is coated on the baffle, a protective frame is arranged on the outer side of the first mounting plate and the second mounting plate, a protective pad is arranged on the inner side of the protective frame, and a bolt is arranged on the connecting bolt.

[0007] As a further solution of the utility model, a first mounting opening is provided on the first mounting plate, a second mounting opening is provided on the second mounting plate, and the first mounting opening is butted against the second mounting opening.

[0008] As a further solution of the utility model, a sliding block is provided at the bottom of the first mounting plate, and a sliding opening is provided on the second mounting plate, and the sliding block slides in the sliding opening.

[0009] As a further solution of the utility model, a first mounting groove is provided on the first mounting plate, and the first sound insulation pad is installed on the first mounting groove.

[0010] As a further solution of the utility model, a second mounting groove is provided at the bottom of the second mounting plate, and the second sound insulation pad is installed on the second mounting groove.

[0011] As a further solution of the utility model, a buffer spring is arranged at the bottom of the first mounting plate, a through-hole is arranged on the protective pad, the buffer spring passes through the through-hole to connect to the second mounting plate, and a damper is arranged inside the buffer spring.

[0012] As a further solution of the utility model, a first screw hole is provided on the first mounting plate, and a first connecting port is provided on the heat dissipation plate.

[0013] As a further solution of the utility model, the connecting bolt passes through the first connecting port, and the bolt is threadedly connected to the first screw port.

[0014] As a further solution of the utility model, a second screw hole is provided on the bottom of the second mounting plate, and a second connecting port is provided on the baffle.

[0015] As a further solution of the utility model, the connecting bolt passes through the second connecting port, and the bolt is threadedly connected to the second screw port.

[0016] The beneficial effects of the utility model are:

[0017] 1. The sound insulation pad slides in the sliding mouth through the slider, so that the first mounting plate and the second mounting plate are stably connected and will not deviate. When the engine starts, vibration will occur. The buffer spring and the damper cooperate to reduce the shaking of the structure. The protective pad prevents the first mounting plate from colliding with the inner side of the second mounting plate.

[0018] 2. The sound insulation pad passes through the first connection port through a connecting bolt and is connected to the first screw port through a bolt. The heat is absorbed by the heat sink and quickly dissipated through the heat sink, thereby dissipating heat, and the baffle protects the bottom.

[0019] 3. The sound insulation pad performs double sound insulation on the engine through the first sound insulation pad and the second sound insulation pad, so that the sound insulation effect is improved.

[0020] In summary, the sound insulation pad cooperates with the damper through the buffer spring to reduce the shaking of the structure, absorbs the heat through the heat sink, and dissipates it quickly through the heat sink. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the main structure of the utility model.

[0022] Figure 2 This is a schematic diagram of the connecting bolt structure of the utility model.

[0023] Figure 3 It is a schematic diagram of the explosion structure of the utility model.

[0024] Figure 4 This is a schematic diagram of the first mounting plate structure of the utility model.

[0025] Figure 5 This is a schematic diagram of the second mounting plate structure of the utility model.

[0026] Numbers in the figure: 1. first mounting plate; 11. first mounting groove; 12. slider; 13. first mounting port; 14. first screw; 15. buffer spring; 2. second mounting plate; 21. slide; 22. second mounting groove; 23. second mounting port; 24. second screw; 3. heat sink; 31. first connection port; 32. heat sink; 33. baffle; 34. second connection port; 4. protective frame; 41. protective pad; 42. through-hole; 43. connecting bolt; 44. bolt; 5. first sound insulation pad; 51. second sound insulation pad. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0028] Reference Figure 1-Figure 5 A sound insulation pad for an engine hood includes a first mounting plate 1, a second mounting plate 2, and a connecting bolt 43. The first mounting plate 1 is arranged above the second mounting plate 2. The first mounting plate 1 and the second mounting plate 2 are main mounting structures of the sound insulation pad, and are used to install the sound insulation pad and other structures. A protective frame 4 is arranged outside the first mounting plate 1 and the second mounting plate 2, and a protective pad 41 is arranged inside the protective frame 4. The protective frame 4 protects the outside of the connection between the first mounting plate 1 and the second mounting plate 2. The protective frame 4 is fixed to the outside of the second mounting plate 2. The protective pad 41 prevents the first mounting plate 1 from The mounting plate 1 collides with the inner side of the second mounting plate 2, and they are protected. A bolt 44 is provided on the connecting bolt 43. The connecting bolt 43 is a connecting accessory. The connecting bolt 43 is fixed by the bolt 44 on the connecting bolt 43, so as to fix other structures. The first mounting plate 1 is provided with a first mounting port 13, and the second mounting plate 2 is provided with a second mounting port 23. The first mounting port 13 is connected to the second mounting port 23. The first mounting plate 1 and the second mounting plate 2 are installed on the engine hood through the first mounting port 13 and the second mounting port 23, so as to install the overall structure.

[0029] A buffer spring 15 is provided at the bottom of the first mounting plate 1, and a through-hole 42 is provided on the protective pad 41. The buffer spring 15 passes through the through-hole 42 to connect to the second mounting plate 2. A slider 12 is provided at the bottom of the first mounting plate 1, and a slide 21 is provided on the second mounting plate 2, so that the first mounting plate 1 is connected to the second mounting plate 2. The slider 12 slides in the slide 21, so that the first mounting plate 1 and the second mounting plate 2 are stably connected and will not deviate. A damper is provided on the inner side of the buffer spring 15. Vibration will occur when the engine is started. The buffer spring 15 cooperates with the damper to reduce the shaking of the structure. A first sound insulation pad 5 and a first mounting groove 11 are provided on the first mounting plate 1, and the first mounting groove 11 is used to install the first sound insulation pad 5. A second sound insulation pad 51 and a second mounting groove 22 are provided at the bottom of the second mounting plate 2, and the second mounting groove 22 is used to install the second sound insulation pad 51. The first sound insulation pad 5 and the second sound insulation pad 51 are used to double soundproof the engine, so that the sound insulation effect is improved.

[0030] A heat sink 3 is arranged above the first sound insulation pad 5, and a heat sink 3 is arranged on the heat sink 3. Heat is absorbed by the heat sink 3 and quickly dissipated through the heat sink 32, thereby dissipating heat. A first screw hole 14 is arranged on the first mounting plate 1, and a first connecting port 31 is arranged on the heat sink 3. A bolt 44 is threadedly connected to the first screw hole 14. A connecting bolt 43 passes through the first connecting port 31 and is connected to the first screw hole 14, so that the heat sink 3 is fixed to the first mounting plate 1. A baffle 33 is arranged at the bottom of the second sound insulation pad 51. A flame retardant is coated on the baffle 33. The baffle 33 is used to protect the bottom, and the flame retardant is used for flame retardancy. A second screw hole 24 is arranged at the bottom of the second mounting plate 2. A second connecting port 34 is arranged on the baffle 33. The bolt 44 is threadedly connected to the second screw hole 24. The connecting bolt 43 passes through the second connecting port 34 and is connected to the second screw hole 24, so that the baffle 33 is fixed to the bottom of the second mounting plate 2.

[0031] Working principle: When in use, the first sound insulation pad 5 is installed on the first mounting groove 11, and the second sound insulation pad 51 is installed on the second mounting groove 22. The connecting bolt 43 passes through the first connecting port 31 and the bolt 44 is connected to the first screw port 14, so that the heat sink 3 is fixed on the first mounting plate 1. The connecting bolt 43 passes through the second connecting port 34 and the bolt 44 is connected to the second screw port 24, so that the baffle 33 is fixed to the bottom of the second mounting plate 2. The first mounting plate 1 and the second mounting plate 2 are installed on the engine cover through the first mounting port 13 and the second mounting port 23. The first sound insulation pad 5 and the second sound insulation pad 51 are used to perform double sound insulation on the engine. Vibration will occur when the engine starts. The buffer spring 15 cooperates with the damper to reduce the shaking of the structure. The protective pad 41 prevents the first mounting plate 1 and the inner side of the second mounting plate 2 from colliding. The heat is absorbed by the heat sink 3 and quickly dissipated through the heat dissipation groove 32. The bottom is protected by the baffle 33, and the flame retardant is flame retardant.

[0032] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An engine hood sound insulation pad, comprising a first mounting plate (1), a second mounting plate (2), and a connecting bolt (43), characterized in that: The first mounting plate (1) is arranged above the second mounting plate (2); a first sound insulation pad (5) is arranged on the first mounting plate (1); a second sound insulation pad (51) is arranged at the bottom of the second mounting plate (2); a heat sink (3) is arranged above the first sound insulation pad (5); a heat sink (3) is arranged on the heat sink (3); a baffle (33) is arranged at the bottom of the second sound insulation pad (51); a flame retardant is coated on the baffle (33); a protective frame (4) is arranged on the outside of the first mounting plate (1) and the second mounting plate (2); a protective pad (41) is arranged on the inside of the protective frame (4); and a bolt (44) is arranged on the connecting bolt (43).

2. The engine hood sound insulation pad according to claim 1, characterized in that: The first mounting plate (1) is provided with a first mounting opening (13), the second mounting plate (2) is provided with a second mounting opening (23), and the first mounting opening (13) is butted against the second mounting opening (23).

3. The engine hood sound insulation pad according to claim 1, characterized in that: A sliding block (12) is provided at the bottom of the first mounting plate (1), and a sliding opening (21) is provided on the second mounting plate (2), and the sliding block (12) slides in the sliding opening (21).

4. The engine hood sound insulation pad according to claim 1, characterized in that: The first mounting plate (1) is provided with a first mounting groove (11), and the first sound insulation pad (5) is mounted on the first mounting groove (11).

5. The engine hood sound insulation pad according to claim 1, characterized in that: A second mounting groove (22) is provided at the bottom of the second mounting plate (2), and the second sound insulation pad (51) is mounted on the second mounting groove (22).

6. The engine hood sound insulation pad according to claim 1, characterized in that: A buffer spring (15) is arranged at the bottom of the first mounting plate (1), a through-hole (42) is arranged on the protective pad (41), the buffer spring (15) passes through the through-hole (42) to connect to the second mounting plate (2), and a damper is arranged on the inner side of the buffer spring (15).

7. The engine hood sound insulation pad according to claim 1, characterized in that: The first mounting plate (1) is provided with a first screw hole (14), and the heat dissipation plate (3) is provided with a first connection port (31).

8. The engine hood sound insulation pad according to claim 7, characterized in that: The connecting bolt (43) passes through the first connecting port (31), and the bolt (44) is threadedly connected to the first screw port (14).

9. The engine hood sound insulation pad according to claim 1, characterized in that: The bottom of the second mounting plate (2) is provided with a second screw hole (24), and the baffle plate (33) is provided with a second connection port (34).

10. The engine hood sound insulation pad according to claim 9, characterized in that The connecting bolt (43) passes through the second connecting port (34), and the bolt (44) is threadedly connected to the second screw port (24).

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