CN216306092U

CN216306092U - Engine heat shield capable of improving noise reduction effect

Info

Publication number: CN216306092U
Application number: CN202123121574.9U
Authority: CN
Inventors: 程志; 王兴伟
Original assignee: Shanghai Hongchang Automobile Fittings Co ltd
Current assignee: Shanghai Hongchang Automobile Fittings Co ltd
Priority date: 2021-12-13
Filing date: 2021-12-13
Publication date: 2022-04-15
Anticipated expiration: 2031-12-13

Abstract

The utility model provides an engine heat shield for improving noise reduction effect, which comprises a heat shield body and a reinforcing plate, wherein a concave cavity groove and a containing cavity are arranged in the heat shield body, a sound absorbing cotton layer is arranged in the concave cavity groove, the reinforcing plate is arranged at the upper end of the sound absorbing cotton layer, a silencing interlayer and a heat insulating layer are arranged in the containing cavity, the silencing interlayer is of a cavity structure, silencing plates are arranged on the upper inner wall and the lower inner wall of the silencing interlayer in an equidistance and crossed mode, and a plurality of radiating strips are arranged on the outer side surface of the heat shield body in an equidistance and crossed mode.

Description

Engine heat shield capable of improving noise reduction effect

Technical Field

The utility model relates to the technical field of automobile parts, in particular to an engine heat shield for improving the noise reduction effect.

Background

An automobile accessory is a product that constitutes each unit of an automobile as a whole and serves the automobile. The automobile parts are various in types, people consume more and more automobiles along with the improvement of living standard of people, and the market of the automobile parts is getting larger and larger. In recent years, automobile accessory manufacturing plants are rapidly developed, and with the deterioration of global environment, the requirements of all countries in the world on automobile emission are increasingly strict, meanwhile, petroleum resources are gradually exhausted, and a small-displacement supercharged engine with strong power is generated by the small-displacement supercharged engine, and with the continuous improvement of turbocharging technology, the turbocharged engine is distributed in the global market; the turbocharging technology also causes the temperature of the exhaust side of the engine to rise while improving the dynamic property of the engine, which has higher requirements on the heat insulation technology of the engine;

therefore, a more efficient heat insulation and noise reduction technology is needed to improve reliability and comfort of the whole vehicle, but the existing engine heat insulation cover structure is generally simple, mostly of a double-layer steel plate structure, and has no noise reduction effect, so that the heat insulation and noise reduction requirements of the turbocharged engine are difficult to meet.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an engine heat shield for improving the noise reduction effect so as to solve the problems in the prior art.

In order to achieve the purpose, the utility model provides the following technical scheme:

the utility model provides an improve engine heat shield of noise reduction effect, is including heat shield body and gusset plate, the inside of heat shield body is provided with concave type cavity groove and holds the cavity, the internally mounted in concave type cavity groove has the cotton layer of sound absorption, the upper end on inhaling the cotton layer of sound is installed to the gusset plate, it is provided with amortization interlayer and insulating layer in the cavity to hold, the amortization interlayer is the cavity structure, just the acoustical panel that the both sides inner wall equidistance alternately set up about the amortization interlayer, just the outside surface equidistance of heat shield body is provided with a plurality of heat dissipation strip pieces.

Further, the heat insulation layer is a ceramic fiber layer, and the thickness of the heat insulation layer is 8mm-12 mm.

Furthermore, the sound-absorbing cotton layer is a terylene chemical fiber cotton layer.

Furthermore, the outer surface of the upper end of the heat shield body is provided with an installation frame, and the outer surface of the installation frame is adhered with a magnetic attraction strip.

Further, the reinforcing plate is a 304L stainless steel plate.

Furthermore, all be provided with the holding tank around the both sides of gusset plate, install buckle subassembly in the holding tank, buckle subassembly includes compression spring, compression spring installs the bottom at the holding tank, compression spring's upper end is connected with the buckle piece, the inner wall in the corresponding position department in concave type cavity groove of heat shield body is provided with the slot, the front side of slot is provided with stirs the groove.

Furthermore, the buckle assembly further comprises a limiting ring and a blocking block, the limiting ring is installed on the inner wall of the opening of the accommodating groove, and the blocking block is installed at the lower end of the buckle block.

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

this device passes through multilayer structure, realized that the multilayer is fallen and insulate against heat, better satisfy turbocharged engine's thermal-insulated demand of making an uproar that falls, at first can tentatively absorb turbocharged engine's noise through inhaling the cotton layer of sound, later cavity structure and the criss-cross acoustical panel design through the amortization interlayer, thereby further increase the noise reduction effect, and the cavity structure through the amortization interlayer can realize partly thermal-insulated effect, it can realize more effectual thermal-insulated to cooperate the thermal-insulated layer again and separate the outside heat sink strip piece of heat exchanger body, increase the security.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is an enlarged view of area A of FIG. 1;

FIG. 3 is a structural hierarchy diagram of the present invention;

FIG. 4 is a sectional view of a snap assembly area of the present invention;

in the figure: 1. a heat shield body; 2. a reinforcing plate; 3. a heat sink strip; 4. a mounting frame; 5. a sound absorbing cotton layer; 6. a buckle assembly; 11. a concave cavity groove; 12. a receiving cavity; 13. a sound-deadening interlayer; 14. a thermal insulation layer; 15. a sound-absorbing panel; 16. a slot; 17. a poking groove; 21. accommodating grooves; 61. a buckling block; 62. a compression spring; 63. a confinement ring; 64. a stop block.

Detailed Description

In order to facilitate an understanding of the utility model, the utility model will now be described more fully hereinafter with reference to the accompanying drawings, in which several embodiments of the utility model are shown, but which may be embodied in different forms and not limited to the embodiments described herein, but which are provided so as to provide a more thorough and complete disclosure of the utility model.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may be present, and when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present, as the terms "vertical", "horizontal", "left", "right" and the like are used herein for descriptive purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, and the knowledge of the terms used herein in the specification of the present invention is for the purpose of describing particular embodiments and is not intended to limit the present invention, and the term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1-4, the present invention provides a technical solution: an engine heat shield for improving noise reduction effect comprises a heat shield body 1 and a reinforcing plate 2, wherein a concave cavity groove 11 and a containing cavity 12 are arranged in the heat shield body 1, a sound absorbing cotton layer 5 is arranged in the concave cavity groove 11, the reinforcing plate 2 is arranged at the upper end of the sound absorbing cotton layer 5, a silencing interlayer 13 and a heat insulating layer 14 are arranged in the containing cavity 12, the silencing interlayer 13 is of a cavity structure, silencing boards 15 are arranged on the inner walls of the upper side and the lower side of the silencing interlayer 13 in an equidistance and crossed mode, a plurality of radiating strips 3 are arranged on the outer side surface of the heat shield body 1 in an equidistance and crossed mode, the device achieves multilayer noise reduction and heat insulation through a multilayer structure, meets the requirements of heat insulation and noise reduction of a turbo supercharged engine better, can primarily absorb noise of the turbo supercharged engine through the sound absorbing cotton layer 5, and then is designed through the cavity structure of the silencing cotton layer 13 and the crossed silencing boards 15, thereby further increase noise reduction effect, and the cavity structure through amortization interlayer 13 can realize partly thermal-insulated effect, and the thermal-insulated strip 3 of the outside of thermal-insulated cover body 1 of deuterogamying 14 can realize more effectual thermal-insulated, increases the security.

Please refer to fig. 3, wherein the thermal insulation layer 14 is a ceramic fiber layer with a thickness of 8mm-12mm, so as to increase the safety and improve the thermal insulation effect; inhale cotton layer 5 of sound is the cotton layer of dacron chemical fiber material to further improve sound effect of inhaling, and when needs are changed, only need open gusset plate 2 can realize the cotton layer 5 of sound of inhaling of renewal, increase sound effect of inhaling.

Please refer to fig. 1 again, an installation frame 4 is installed on the outer surface of the upper end of the heat shield body 1, and a magnetic strip is attached to the outer surface of the installation frame 4, so as to facilitate the installation of the heat shield body 1.

Referring to fig. 3 again, the reinforcing plate 2 is a 304L stainless steel plate, so as to increase the strength of the reinforcing plate 2 and prevent the heat shield body 1 from deforming.

Please refer to fig. 2 and fig. 4 again, the front and back of both sides of the reinforcing plate 2 are provided with accommodating grooves 21, the accommodating groove 21 is internally provided with a buckle assembly 6, the buckle assembly 6 comprises a compression spring 62, the compression spring 62 is installed at the bottom of the accommodating groove 21, the upper end of the compression spring 62 is connected with a buckle block 61, the inner wall of the corresponding position of the concave cavity groove 11 of the heat shield body 1 is provided with a slot 16, the front side of the slot 16 is provided with a toggle groove 17, the reinforcing plate 2 can be conveniently taken down by pressing the buckle block 61 in the toggle groove 17 to retract the buckle block, so as to realize the replacement of the sound absorbing cotton layer 5, and when the reinforcing plate 2 needs to be installed, the reinforcing plate 2 is installed after the buckle block 61 is pressed, and the buckle block 61 can be popped into the slot 16 by the acting force of the compression spring 62, so as to complete the fixation; the buckle assembly 6 further comprises a limiting ring 63 and a blocking block 64, the limiting ring 63 is mounted on the inner wall of the opening of the accommodating groove 21, and the blocking block 64 is mounted at the lower end of the buckle block 61 to limit the moving range of the buckle block 61 and prevent the buckle block 61 from falling off.

The specific operation mode of the utility model is as follows:

through multilayer structure, realized that the multilayer is fallen and insulate against heat, better satisfy turbocharged engine's thermal-insulated demand of making an uproar that falls, at first can tentatively absorb turbocharged engine's noise through inhaling cotton layer 5, later cavity structure and the crisscross acoustical panel 15 design through amortization interlayer 13, thereby further increase the noise reduction effect, and the cavity structure through amortization interlayer 13 can realize partly thermal-insulated effect, it can realize more effectual thermal-insulated to cooperate insulating layer 14 and heat exchanger body 1 outside heat dissipation strip piece 3 again, the security is increased.

The utility model is described above with reference to the accompanying drawings, it is obvious that the utility model is not limited to the above embodiments, and it is within the scope of the utility model to adopt the method concept and technical solution of the utility model to make such insubstantial modifications, or to directly apply the concept and technical solution of the utility model to other applications without any modification.

Claims

1. The utility model provides an improve engine heat exchanger that makes an uproar effect of falling, is including heat exchanger body (1) and gusset plate (2), its characterized in that, the inside of heat exchanger body (1) is provided with concave type cavity groove (11) and holds cavity (12), the internally mounted of concave type cavity groove (11) has sound absorption cotton layer (5), install in the upper end of inhaling cotton layer (5) of sound gusset plate (2), it is provided with amortization interlayer (13) and insulating layer (14) in cavity (12) to hold, amortization interlayer (13) are the cavity structure, just the acoustical panel (15) that the equidistance alternately set up of both sides inner wall about amortization interlayer (13), just the outside surface equidistance of heat exchanger body (1) is provided with a plurality of heat dissipation strip (3).

2. The engine heat shield for improving noise reduction effect according to claim 1, characterized in that the thermal insulation layer (14) is a ceramic fiber layer with a thickness of 8mm-12 mm.

3. The engine heat shield for improving the noise reduction effect according to claim 1, wherein the sound absorption cotton layer (5) is a dacron chemical fiber cotton layer.

4. The engine heat shield for improving the noise reduction effect according to claim 1, characterized in that a mounting frame (4) is mounted on the outer surface of the upper end of the heat shield body (1), and a magnetic strip is attached to the outer surface of the mounting frame (4).

5. The engine heat shield for improving the noise reduction effect according to claim 1, wherein the reinforcing plate (2) is a 304L stainless steel plate.

6. The engine heat shield for improving the noise reduction effect according to claim 1, wherein accommodating grooves (21) are formed in front and back of two sides of the reinforcing plate (2), a buckle assembly (6) is installed in each accommodating groove (21), each buckle assembly (6) comprises a compression spring (62), each compression spring (62) is installed at the bottom of each accommodating groove (21), a buckle block (61) is connected to the upper end of each compression spring (62), an inserting groove (16) is formed in the inner wall of the corresponding position of the concave cavity groove (11) of the heat shield body (1), and a toggle groove (17) is formed in the front side of each inserting groove (16).

7. The engine heat shield for improving the noise reduction effect according to claim 6, wherein the snap assembly (6) further comprises a limiting ring (63) and a blocking block (64), the limiting ring (63) is mounted on the inner wall of the opening of the accommodating groove (21), and the blocking block (64) is mounted at the lower end of the snap block (61).