CN111946459A - A kind of automobile engine noise control device and control method thereof - Google Patents

Abstract

The invention discloses an automobile engine noise control device and a control method thereof. The invention has the beneficial effects that: weld the board left and right sides and be the setting of symmetry formula, and fix on automobile base through the mode that welds the board full weld, guarantee the device's overall stability, the fixed cover in top runs through the butt joint screw and revolves soon the locking on the butt joint board through fastening screw, and then closes the cover with enclosing and be detachable connection, convenient to detach and installation, the bleeder vent is provided with ten to be the equidistance formula setting, can be timely give off the heat of engine, eliminate the potential safety hazard.

Description

A kind of automobile engine noise control device and control method thereof

technical field

The invention relates to a noise control device, in particular to an automobile engine noise control device and a control method thereof, belonging to the technical field of noise control devices.

Background technique

The car engine is the device that provides power for the car and the heart of the car, which determines the power, economy, stability and environmental protection of the car. According to different power sources, automobile engines can be divided into diesel engines, gasoline engines, electric vehicles, and hybrids. Common gasoline engines and diesel engines belong to reciprocating piston internal combustion engines, which convert the chemical energy of fuel into mechanical energy of piston motion and output power to the outside world. The gasoline engine has high speed, low quality, low noise, easy starting, and low manufacturing cost; the diesel engine has a large compression ratio, high thermal efficiency, and better economic performance and emission performance than gasoline engines.

Since the automobile engine will emit a certain noise when it is working, a noise control device and a control method thereof are required to meet the current market demand. Although a variety of noise control devices have been produced on the market, but In general, there are still many common problems. First, the existing noise control device is not equipped with a shock absorption base, which makes it impossible to buffer the engine when encountering a bumpy road section, causing it to rub against the car base. Second, the existing noise control device is not provided with sound-absorbing cotton, but only uses a single sound insulation cover for sound insulation, resulting in an inconspicuous sound insulation effect. Third, the existing noise control device is not provided with heat dissipation holes, resulting in The heat of the engine cannot be dissipated in a timely and effective manner, and there are certain safety hazards.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide an automobile engine noise control device and a control method thereof in order to solve the above problems.

The present invention achieves the above objects through the following technical solutions: an automobile engine noise control device, comprising a bottom plate, a welding plate, a shock absorber plate, a fixing hole, a shock absorber spring, an enclosure cover, a sound-absorbing cotton, a top fixing cover, and a fastening screw , ventilation holes, butt screw holes, butt plates and butt grooves; the bottom plate is fixed on the bottom plate of the vehicle by welding plates, the welding plates are horizontally welded and fixed on the left and right sides of the bottom plate, and the shock-absorbing plates are connected by shock-absorbing springs On the top of the bottom plate and in the groove above the bottom plate, the fixing holes are concavely arranged at the top four corners of the shock-absorbing plate, the shock-absorbing spring is located in the groove on the bottom plate, and the upper and lower parts of the shock-absorbing spring are located in the groove on the bottom plate. The ends are welded and fixed with the bottom plate and the shock-absorbing plate respectively, the enclosure cover is vertically fixed on the left and right sides of the top of the bottom plate, the sound-absorbing cotton is attached and fixed on the inner walls of the enclosure cover and the top fixed cover, and the top is fixed The cover is fixed on the top of the enclosure cover by tightening screws, the tightening screws are screwed and locked in the butt screw holes, the ventilation holes are arranged through the top fixing cover, and the butt screw holes are respectively arranged on the butt plate and On the side walls of the enclosure cover, the butt plates are vertically fixed on the bottoms of the left and right sides of the top fixed cover, and the butt grooves are concavely arranged on the top of the enclosure cover.

Preferably, in order to ensure the overall stability of the device, the welding plates are arranged symmetrically on the left and right, and are fixed on the vehicle base by full welding of the welding plates.

Preferably, in order to facilitate disassembly and installation, the top fixing cover penetrates through the butt screw holes through fastening screws and is screwed and locked on the butt plate, thereby being detachably connected to the enclosing cover.

Preferably, in order to dissipate the heat of the engine in a timely manner and eliminate potential safety hazards, there are ten said ventilation holes, and they are arranged in an equidistant manner.

Preferably, in order to absorb the working noise of the engine through the sound-absorbing cotton and maximize the sound insulation effect, the sound-absorbing cotton is fixed on the inner walls of the enclosure cover and the top fixed cover in a covering-type uniform bonding, and the surface of the sound-absorbing cotton is uneven. structure.

Preferably, in order to make the engine have a certain buffer when encountering a bumpy road section and reduce friction with the vehicle base, the shock-absorbing plate is elastically connected to the bottom plate through a shock-absorbing spring.

A vehicle engine noise control device, the control method comprising the following steps:

Step 1. First, assemble the control device, and fix the car engine on the shock absorber plate through the fixing hole;

Step 2. The vibration generated by the engine during the working process is damped by the shock-absorbing plate to reduce the frictional noise between the engine and the base when the car encounters a bumpy road surface, so as to realize the control of the noise source;

Step 3. The noise generated by the engine during the working process is absorbed by the sound-absorbing cotton on the inner wall of the enclosure cover and the top fixed cover, so as to realize the control of the noise transmission process.

The beneficial effects of the present invention are as follows: the noise control device is reasonably designed, the welding plates are arranged symmetrically on the left and right, and are fixed on the vehicle base by full welding of the welding plates, so as to ensure the overall stability of the device, and the top fixing cover is fastened by tightening the The screws pass through the butt screw holes and are screwed and locked on the docking plate, and then are detachably connected with the enclosure cover, which is convenient for disassembly and installation. The heat is dissipated to eliminate potential safety hazards. The sound-absorbing cotton is evenly bonded and fixed on the inner wall of the enclosure cover and the top fixed cover, and the surface of the sound-absorbing cotton is uneven structure. To maximize the effect, the shock absorber plate is elastically connected to the bottom plate through the shock absorber spring, so that the engine has a certain buffer when encountering a bumpy road section, reducing the friction with the car base.

Description of drawings

Fig. 1 is the external structure schematic diagram of the present invention;

Figure 2 is a schematic cross-sectional view of the base of the present invention;

FIG. 3 is a partial schematic diagram of the present invention.

In the picture: 1. Bottom plate, 2. Welding plate, 3. Damping plate, 4. Fixing hole, 5. Damping spring, 6. Enclosing cover, 7. Sound-absorbing cotton, 8. Top fixing cover, 9. Fastening Screws, 10, ventilation holes, 11, butt screw holes, 12, butt plates and 13, butt slots.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

Please refer to Figures 1 to 3, an automobile engine noise control device and its control method, comprising a base plate 1, a welding plate 2, a damping plate 3, a fixing hole 4, a damping spring 5, an enclosure 6, a sound-absorbing cotton 7, The top fixing cover 8, fastening screws 9, ventilation holes 10, butt screw holes 11, butt plates 12 and butt slots 13; the bottom plate 1 is fixed on the bottom plate of the vehicle by the welding plate 2, and the welding plate 2 is horizontally welded and fixed on the On the left and right sides of the bottom plate 1, the shock-absorbing plate 3 is connected to the top of the bottom plate 1 through the shock-absorbing spring 5 and is located in the groove above the bottom plate 1, and the fixing hole 4 is concavely arranged on the top of the shock-absorbing plate 3 At the four corners, the damping springs 5 are located in the grooves on the bottom plate 1, and the upper and lower ends of the damping springs 5 are welded and fixed to the bottom plate 1 and the damping plate 3 respectively, and the enclosure cover 6 is vertically fixed on the bottom plate. 1 On the left and right sides of the top, the sound-absorbing cotton 7 is attached and fixed on the inner wall of the enclosing cover 6 and the top fixing cover 8, and the top fixing cover 8 is fixed on the top of the enclosing cover 6 by tightening screws 9, so The fastening screws 9 are screwed and locked in the butt screw holes 11, the ventilation holes 10 are arranged through the top fixing cover 8, and the butt screw holes 11 are respectively arranged on the butt plate 12 and the side wall of the enclosure cover 6, The docking plates 12 are vertically fixed on the bottoms of the left and right sides of the top fixing cover 8 , and the docking grooves 13 are concavely disposed on the top of the enclosing cover 6 .

The welding plate 2 is symmetrically arranged on the left and right, and is fixed on the base of the vehicle by full welding of the welding plate 2 to ensure the overall stability of the device. And screw and lock it on the docking plate 12, and then it is detachably connected with the enclosing cover 6, which is convenient for disassembly and installation. The heat is dissipated to eliminate potential safety hazards. The sound-absorbing cotton 7 is evenly glued and fixed on the inner walls of the enclosing cover 6 and the top fixing cover 8 in a covering type, and the surface of the sound-absorbing cotton 7 is uneven structure. The engine work noise is absorbed to maximize the sound insulation effect. The shock absorber plate 3 is elastically connected to the bottom plate 1 through the shock absorber spring 5, so that the engine has a certain buffer when encountering a bumpy road section, reducing friction with the car base .

A control method of an automobile engine noise control device, the control method comprising the following steps:

Step 1: Assemble the control device first, and fix the automobile engine on the shock absorber plate 3 through the fixing hole 4;

Step 2, the vibration generated by the engine during the working process is damped by the shock-absorbing plate 3, so as to reduce the friction noise between the engine and the base when the car encounters a bumpy road surface, and realize the control of the noise source;

Step 3: The noise generated by the engine during the working process is absorbed by the sound-absorbing cotton 7 on the inner wall of the enclosing cover 6 and the top fixed cover 8, so as to realize the control of the noise transmission process.

Working principle: When using the noise control device, firstly, the bottom plate 1 is welded and fixed to the car base through the welding plate 2 to ensure the overall stability of the device, and then the car engine is fixed on the shock absorber plate 3 through the fixing hole 4. The shock absorption effect of the shock absorber plate 3 reduces the frictional noise between the engine and the base when the car encounters a bumpy road surface, and then the top fixing cover 8 is inserted through the butt screw hole 11 through the tightening screw 9 and screwed and locked on the butt plate 12 It is connected to the enclosure cover 6 in a detachable manner, which is convenient for disassembly and installation. When the engine is working, the noise is directly absorbed by the sound-absorbing cotton 7 .

It will be apparent to those skilled in the art that the present invention is not limited to the details of the above-described exemplary embodiments, but that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments are to be regarded in all respects as illustrative and not restrictive, and the scope of the invention is to be defined by the appended claims rather than the foregoing description, which are therefore intended to fall within the scope of the claims. All changes within the meaning and scope of the equivalents of , are included in the present invention. Any reference signs in the claims shall not be construed as limiting the involved claim.

In addition, it should be understood that although this specification is described in terms of embodiments, not each embodiment only includes an independent technical solution, and this description in the specification is only for the sake of clarity, and those skilled in the art should take the specification as a whole , the technical solutions in each embodiment can also be appropriately combined to form other implementations that can be understood by those skilled in the art.

Claims (7)

1. An automobile engine noise control device, characterized in that: comprises a bottom plate (1), a welding plate (2), a damping plate (3), a fixing hole (4), a damping spring (5), a surrounding cover (6), sound-absorbing cotton (7), a top fixing cover (8), a fastening screw (9), an air hole (10), a butt joint screw hole (11), a butt joint plate (12) and a butt joint groove (13); the bottom plate (1) is fixed on an automobile bottom plate through a welding plate (2), the welding plate (2) is horizontally welded and fixed on the left side and the right side of the bottom plate (1), the damping plate (3) is connected at the top of the bottom plate (1) through a damping spring (5) and is positioned in a groove above the bottom plate (1), the fixing hole (4) is arranged at the four corners of the top of the damping plate (3) in an inwards concave manner, the damping spring (5) is positioned in the groove on the bottom plate (1), the upper end and the lower end of the damping spring (5) are respectively welded and fixed with the bottom plate (1) and the damping plate (3), the enclosing cover (6) is vertically fixed on the left side and the right side of the top of the bottom plate (1), the sound absorbing cotton (7) is attached and fixed on the inner wall of the enclosing cover (6) and the top fixing cover (8), the top fixing cover (8) is fixed on the top of the enclosing cover (6), fastening screw (9) are twisted soon and are locked in butt joint screw (11), bleeder vent (10) run through the setting on the fixed cover (8) in top, butt joint screw (11) set up respectively on butt joint plate (12) and enclose and close cover (6) lateral wall, butt joint plate (12) are vertical to be fixed in the left and right sides bottom of the fixed cover (8) in top, butt joint groove (13) are the indent formula and set up and are enclosing the top that closes cover (6).

2. The noise control device for an automobile engine according to claim 1, characterized in that: weld board (2) left and right sides and be symmetrical formula setting, and fix on automobile chassis through the mode that welds board (2) full weld.

3. The noise control device for an automobile engine according to claim 1, characterized in that: the top fixing cover (8) penetrates through the butt joint screw hole (11) through a fastening screw (9) and is locked on the butt joint plate (12) in a screwing mode, and then is detachably connected with the enclosing cover (6).

4. The noise control device for an automobile engine according to claim 1, characterized in that: the ten air holes (10) are arranged in an equidistant mode.

5. The noise control device for an automobile engine according to claim 1, characterized in that: inhale sound cotton (7) and be the even gluing of cover formula and fix on enclosing the inner wall that closes cover (6) and top fixed cover (8), and inhale the surface of sound cotton (7) and be unsmooth uneven structure.

6. The noise control device for an automobile engine according to claim 1, characterized in that: the damping plate (3) is elastically connected with the bottom plate (1) through a damping spring (5).

7. A control method of an automobile engine noise control device is characterized by comprising the following steps:

firstly, assembling the control device, and fixing an automobile engine on a damping plate (3) through a fixing hole (4);

secondly, the vibration generated by the engine in the working process is damped by the damping plate (3) so as to reduce the friction noise between the engine and the base when the automobile meets a bumpy road surface and realize the control of a noise source;

and thirdly, noise generated by the engine in the working process is absorbed by the sound absorption cotton (7) on the inner walls of the enclosing cover (6) and the top fixing cover (8), so that the control of the noise transmission process is realized.

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