CN210591709U

CN210591709U - Environment-friendly noise-reduction heat-insulation pad for automobile engine

Info

Publication number: CN210591709U
Application number: CN201921647118.8U
Authority: CN
Inventors: 唐继民; 王伟; 邓文超; 薛慧东
Original assignee: Danyang Lihong Auto Parts Co Ltd
Current assignee: Danyang Lihong Auto Parts Co Ltd
Priority date: 2019-09-30
Filing date: 2019-09-30
Publication date: 2020-05-22
Anticipated expiration: 2029-09-30

Abstract

The utility model belongs to the technical field of automobile engines, and discloses an environment-friendly noise reduction and heat insulation pad for automobile engines, which comprises a heat insulation pad body, wherein a heat-resistant layer is arranged at the bottom of the heat insulation pad body, a reinforcing rib is fixed at the top end inside the heat insulation pad body, micropores are arranged inside the heat-resistant layer, a polyester fiber layer is arranged at the bottom end of the reinforcing rib and at the position inside the heat insulation pad body, one side of the polyester fiber layer, which is far away from the reinforcing rib, is connected with a foam plastic layer, and air columns penetrate through the polyester fiber layer and the foam plastic layer, the utility model uses the micropores to enable noise to enter the heat insulation pad body, then absorbs and isolates the sound waves through the polyester fiber layer and the foam plastic layer, then the sound waves are transmitted into the air columns, so that the air inside the air columns is excited to generate vibration energy consumption, and simultaneously the vibration of, thereby realizing the effects of noise reduction and sound absorption.

Description

Environment-friendly noise-reduction heat-insulation pad for automobile engine

Technical Field

The utility model belongs to the technical field of automobile engine, concretely relates to automobile engine environmental protection amortization heat insulating mattress.

Background

The automobile engine is a machine for providing power for an automobile, is the heart of the automobile, influences the dynamic property, the economical efficiency and the environmental protection property of the automobile, can be divided into a diesel engine, a gasoline engine, an electric automobile motor, hybrid power and the like according to different power sources, common gasoline engines and diesel engines belong to reciprocating piston type internal combustion engines, and chemical energy of fuel is converted into mechanical energy of piston motion and power is output outwards.

However, the heat insulation pad of the automobile engine in the current market has more defects in the use process, for example, the heat insulation pad has poor sound insulation effect, not only influences the driving of a driver, but also generates noise pollution to the outside, in addition, because the working frequency of the engine is high when the automobile speed is fast, the vibration amplitude is large, the comfort level of crewmembers is reduced when vibration energy is transmitted to a cab, and the driving of the driver is influenced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an automobile engine environmental protection amortization heat insulating mattress to the heat insulating mattress that proposes among the solution above-mentioned background art gives sound insulation effect poor, and the problem that the shock-absorbing capacity of heat insulating mattress is more weak.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an automobile engine environmental protection amortization heat insulating mattress, includes thermal-insulated pad body, the heat-resistant layer is installed to the bottom of thermal-insulated pad body, and the inside top of thermal-insulated pad body is fixed with the strengthening rib, the micropore has been seted up to the inside on heat-resistant layer, the polyester fiber layer is installed to the bottom of strengthening rib and the position department that is located the thermal-insulated pad body inside, one side that the strengthening rib was kept away from on the polyester fiber layer is connected with foam layer, and the polyester fiber layer has all run through the air column with foam layer's inside, the internally mounted of air column has the vibration thin.

Preferably, the chamber groove has been seted up to the inside of strengthening rib, the bearing piece is all installed, two to the inside top and the bottom in chamber groove be connected with first spring between the bearing piece, and the one end of one of them bearing piece is located the inside position department of first spring and is fixed with the connecting rod, the bottom of connecting rod is connected with the solid fixed cylinder, the one end that the connecting rod was kept away from to the solid fixed cylinder is connected with another bearing piece, the connecting rod extends to the inside one end of solid fixed cylinder and installs the slider, and the inside cover that the outer wall of connecting rod is located the solid fixed cylinder is equipped with the second spring.

Preferably, both ends of the top of the heat insulation pad body are connected with bonding layers, and the heat-resistant layer is of an arc-shaped structure.

Preferably, the outer wall of the sliding block is provided with a rubber pad, and the outer wall of the rubber pad is provided with an anti-slip groove.

Preferably, one end of the second spring is connected with the slider, and the other end of the second spring is connected with the fixed cylinder.

Compared with the prior art, the beneficial effects of the utility model are that:

(1) the utility model discloses a micropore makes the noise get into thermal-insulated pad originally internally, then absorbs the sound wave through polyester fiber layer and foam plastic layer and keeps apart, later the sound wave transmits to the air column in, makes the inside air of air column receive to arouse and produce vibration energy consumption, vibrates further subducts and disperse the sound wave of thin slice vibration simultaneously to realize the effect of amortization sound absorption.

(2) The utility model discloses a two bearing pieces extrude first spring each other and make its compression, and the connecting rod drives the slider and slides in the solid fixed cylinder simultaneously, makes the second spring receive tensile extension, can effectually reduce the amplitude and weaken the vibrations energy under the combined action of first spring and second spring, and then plays buffering absorbing effect.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a bottom view of the present invention;

FIG. 3 is an enlarged view of portion A of FIG. 1;

FIG. 4 is a schematic structural view of the connecting rod of the present invention when connected with the fixed cylinder;

in the figure: 1-a heat insulation pad body; 2-cavity groove; 3-an adhesive layer; 4-reinforcing ribs; 5-a polyester fiber layer; 6-a foam plastic layer; 7-a heat-resistant layer; 8-micropores; 9-column of air; 10-vibrating the sheet; 11-a connecting rod; 12-a load-bearing sheet; 13-a first spring; 14-a fixed cylinder; 15-a slide block; 16-a rubber pad; 17-second spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides the following technical solutions: an environment-friendly silencing heat insulation pad for an automobile engine comprises a heat insulation pad body 1, a heat-resistant layer 7 is installed at the bottom of the heat insulation pad body 1, reinforcing ribs 4 are fixed at the top end inside the heat insulation pad body 1, the stability of the structure of the heat insulation pad body 1 can be enhanced through the reinforcing ribs 4, a supporting and protecting effect is achieved, micropores 8 are formed in the heat-resistant layer 7, a polyester fiber layer 5 is installed at the bottom end of each reinforcing rib 4 and is located in the position inside the heat insulation pad body 1, the polyester fiber layer 5 is made of polyester fibers and glass fibers through hot press molding and is made of materials with a sound absorption function, the sound absorption characteristics of the polyester fiber layer are similar to those of other porous materials, a cavity reserved on the back of the polyester fiber layer and a space sound absorption body formed by the polyester fiber layer 5 can greatly improve the sound absorption performance of the materials, one side, away from, can alleviate thermal-insulated pad body 1's weight, good sound absorbing performance has simultaneously, and polyester fiber layer 5 has all run through air column 9 with the inside of foamed plastic layer 6, the internally mounted of air column 9 has vibration thin slice 10, when automobile engine work produced the noise, the noise passes through micropore 8 and gets into to thermal-insulated pad body 1 in, then absorb the isolation to the sound wave through polyester fiber layer 5 and foamed plastic layer 6, later the sound wave transmits to in the air column 9, make the inside air of air column 9 receive the excitation and produce vibration energy consumption, vibration thin slice 10 vibrates further subducts and disperse the sound wave simultaneously, thereby realize the effect of amortization sound absorption.

Further, a cavity groove 2 is formed in the reinforcing rib 4, bearing pieces 12 are respectively arranged at the top end and the bottom end of the cavity groove 2, a first spring 13 is connected between the two bearing pieces 12, a connecting rod 11 is fixed at the position, located inside the first spring 13, of one end of one bearing piece 12, the bottom end of the connecting rod 11 is connected with a fixed cylinder 14, one end, far away from the connecting rod 11, of the fixed cylinder 14 is connected with the other bearing piece 12, a sliding block 15 is arranged at the end, extending to the inside of the fixed cylinder 14, of the connecting rod 11, a second spring 17 is sleeved on the outer wall, located inside the fixed cylinder 14, of the connecting rod 11, when the heat insulation pad body 1 is extruded, the first spring 13 is mutually extruded through the two bearing pieces 12 to be compressed, meanwhile, the connecting rod 11 drives the sliding block 15 to slide in the fixed cylinder 14, so that the second spring 17 is stretched and extended, under the combined action of the first spring 13 and the second spring 17, thereby playing the role of buffering and shock absorption.

Further, the top both ends of thermal-insulated pad body 1 all are connected with bond line 3, are convenient for fix thermal-insulated pad body 1 through bond line 3, and heat-resistant layer 7 is the arc structure.

Specifically, the outer wall of the sliding block 15 is provided with a rubber pad 16, the rubber pad 16 plays a role of anti-skidding, and the outer wall of the rubber pad 16 is provided with an anti-skidding groove.

Specifically, one end of the second spring 17 is connected to the slider 15, and the other end of the second spring 17 is connected to the fixed barrel 14.

The utility model discloses a theory of operation and use flow: when the utility model is used, firstly, the heat-proof layer 7 at the lower end of the heat-proof pad body 1 is aligned to the position of the engine through the bonding layer 3 in the automobile front cover, the heat-proof layer 7 has excellent high-temperature resistance and naked flame resistance, the heat-proof pad body 1 can better play a role of heat insulation through the heat-proof layer 7, when the automobile engine generates vibration and generates noise, the cavity groove 2 in the heat-proof pad body 1 is firstly extruded, the first spring 13 is mutually extruded by the two bearing sheets 12 to be compressed, meanwhile, the connecting rod 11 drives the sliding block 15 to slide in the fixed cylinder 14, the second spring 17 is stretched and extended, under the common action of the first spring 13 and the second spring 17, the amplitude can be effectively reduced and the vibration energy can be weakened, the buffer and shock absorption effects are achieved, the comfort level during driving is improved, in the noise transmission process, the noise enters the heat-proof pad body 1 through the micropore 8, then absorb the sound wave through polyester fiber layer 5 and foam plastic layer 6 and keep apart, polyester fiber layer 5 is with polyester fiber and glass silk as the raw materials material that has concurrently of the sound function of inhaling that the sound characteristic is similar with other porous materials, the cavity that leaves behind it and the space that constitutes with it inhale the sound body can improve the sound absorption performance of material greatly, foam plastic layer 6 texture is lighter, can alleviate the weight of thermal-insulated pad body 1, good sound absorption performance has simultaneously, later the sound wave transmits to in the air post 9, make the inside air of air post 9 receive the excitation and produce vibration energy consumption, vibration thin slice 10 vibrates further subducts and disperse the sound wave simultaneously, the effect of amortization sound absorption has been realized, and then reach the environmental protection amortization.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an automobile engine environmental protection amortization heat insulating mattress which characterized in that: including thermal-insulated pad body (1), heat-resistant layer (7) are installed to the bottom of thermal-insulated pad body (1), and the inside top of thermal-insulated pad body (1) is fixed with strengthening rib (4), micropore (8) have been seted up to the inside of heat-resistant layer (7), polyester fiber layer (5) are installed to the bottom of strengthening rib (4) and the position department that is located thermal-insulated pad body (1) inside, one side that strengthening rib (4) were kept away from in polyester fiber layer (5) is connected with foam layer (6), and the inside of polyester fiber layer (5) and foam layer (6) all runs through there is air post (9), the internally mounted of air post (9) has vibration thin slice (10).

2. The environment-friendly noise-reducing and heat-insulating pad for the automobile engine as claimed in claim 1, wherein: cavity groove (2) have been seted up to the inside of strengthening rib (4), bearing piece (12), two are all installed with the bottom on the inside top of cavity groove (2) bearing piece (12) are connected with first spring (13) between bearing piece (12), and the one end of one of them bearing piece (12) is located the position department inside first spring (13) and is fixed with connecting rod (11), the bottom of connecting rod (11) is connected with solid fixed cylinder (14), the one end that connecting rod (11) were kept away from in solid fixed cylinder (14) is connected with another bearing piece (12), slider (15) are installed to the one end that connecting rod (11) extend to solid fixed cylinder (14) inside, and the inside cover that the outer wall of connecting rod (11) is located solid fixed cylinder (14) is equipped with second spring (17).

3. The environment-friendly noise-reducing and heat-insulating pad for the automobile engine as claimed in claim 1, wherein: the heat insulation pad is characterized in that two ends of the top of the heat insulation pad body (1) are both connected with bonding layers (3), and the heat-resistant layer (7) is of an arc-shaped structure.

4. The environment-friendly noise-reducing and heat-insulating pad for the automobile engine as claimed in claim 2, wherein: the outer wall of the sliding block (15) is provided with a rubber pad (16), and the outer wall of the rubber pad (16) is provided with an anti-slip groove.

5. The environment-friendly noise-reducing and heat-insulating pad for the automobile engine as claimed in claim 2, wherein: one end of the second spring (17) is connected with the sliding block (15), and the other end of the second spring (17) is connected with the fixed cylinder (14).