RU5959U1 - NOISE REDUCING CAR KIT - Google Patents

Abstract

1. A noise-reducing car kit for an individual, additional, selectively targeted and degree of improvement of acoustic comfort in the car interior, containing a composite multilayer self-adhesive, vibration-damping-lining cladding of the inner surfaces of the body and interior panels, the adhesive surface of which is protected by an easily removable coating, compactly placed in the package, characterized in that the cladding consists of separate noise vibration damping modules, the outer contour of each of which is at least repeats the shape of the corresponding mating panel of the vehicle interior, each of the individual modules contains at least one layer of noise-damping material, and the area of each individual module is at least 50-70% of the area of the vehicle interior panel mating with the module, while the kit is equipped with the circuit- instructions for installing the modules on the panels of the passenger compartment contained in the package. 2. A kit according to claim 1, characterized in that within the outer contour of each individual module there is at least a projection of the central part of the corresponding panel of the car interior onto the plane of the corresponding module. A kit according to claims 1 and 2, characterized in that at least part of the modules contains a reinforcing tightening layer and / or a soft sound-absorbing layer. 4. A kit according to claims 1 to 3, characterized in that at least part of the modules has through slots, cuts, and / or through and / or blind holes to ensure tight installation on the embossed surfaces of the passenger compartment panel, tightly enclosing functional elements on them

Description

IPC B60R 13/08

Noise-reducing car kit.

The utility model relates to elements of contingent, additional equipment, allowing, at the request of the vehicle owner, or a specialized TUBING (lapping) company, independently and

purposefully improve acoustic comfort in the cabin and / or passenger compartment, in particular, the passenger compartment of a car.

Quite strict requirements are imposed on modern cars for the maximum permissible level of internal noise, and this is caused not only by the need to constantly improve the competitiveness of cars on the roads, but also by the safety of their operation.

In particular, the operation of vehicles with the implementation of work processes in their power plants is usually accompanied by increased noise emitted into the cabin (interior), which has an irritating effect on a person, speeds up the process of fatigue, weakens attention and significantly weakens mental reactions. The negative impact on the driver and passengers is greater, the higher the noise level in the cab and the longer its exposure.

Strong vibrational and acoustic excitation of the power frame of the load-bearing body of the car that does not contain a special rigid frame, due to the good vibration excitability and vibration conductivity of the metal and the resonant excitation of the skeleton of the power frame, is easily transmitted to the forming passenger compartment of the panel (wall), the floor, the front end of the engine compartment, the mudguard arches wheels, sidewalls, doors, etc., forming the enclosed space of the cabin (cabin) and which (walls) are direct emitters of acoustic (noise) energy not directly into this enclosed space of air volume, forming an unfavorable acoustic climate in the form of increased internal noise in the cabin. Also, the bonnet panels, roof racks and trunk floor, mudguards, air ducts of the air conditioning system adjacent to the cabin are also subjected to such strong excitement.

The last indicated emitters of sound energy (hood, lid and floor of the trunk, air duct duct, mudguards) can transmit the noise emitted by them into the interior of the cabin, either by air or primarily by structural (rigid) transmission, amplifying the radiation of the panels directly forming the shell of the cab (interior) of the car.

Lead; in the global automotive industry, they are paying the most serious attention to the problem of reducing the internal noise of a car. At present, various highly effective

vibration-damping and soundproofing materials with the help of which noise and vibration-damping of body elements with a superior acoustic activity are effectively carried out. As a rule, viscous-elastic coatings in the form of mastics, mats, multilayer gaskets having high values of the loss coefficient and made on the basis of weight, visco-elastic material such as bituminous mastics, polyvinyl chloride, ADEM and so on, which are widely used, are used as vibration damping materials. known from patent sources: US patent 4609580, class D04H 1/00, publ. 09/02/86, the application of Germany (O8) 3505409, class B60R 7/04, publ. 08.21.86, Japanese application (B) 61-53257, class B60R 13/02, publ. 11/17/86.

For example, in the application of Germany (OS) 4123509, class G10K 11/16, publ. 01.21.93, BI N3, a noise-reducing multilayer overlay for the walls of sound-emitting enclosures is described. In particular, in order to reduce the buzzing of the metal walls of automobiles or cars, as well as to achieve stability of the lining to the effects of temperature and weather conditions, to reliably attach it to the noise-creating walls of the housings and to improve its noise-absorbing properties, the lining contains a base layer of SBR rubber, vulcanized together with it a contact layer of CR rubber and a double-sided adhesive tape glued to the last one, on the free side of which there is a protective film that can be removed when mounting the cover.

Known and domestic materials, and.with. SSSR N1678668, publ. 09/23/91, N1698105, publ. 12/15/91, N2042547, publ. 08/27/95, N1400928, publ. 06/07/88, all of class B60R 13/08, which, however, having a significant thickness to obtain a given acoustic efficiency, high cost and low technological characteristics, have found very limited use in the assembly line of cars. Basically, they partially found application in tractors.

road construction and agricultural machinery. In modern domestic cars, these materials are not used, due to their low effective and technological indicators, as well as their use, in some cases to obtain the required efficiency, due to an increase in the thickness of the lining, would lead to an undesirable decrease in the useful space of the passenger compartment.

It should be noted that a high degree of acoustic comfort in the passenger compartment (cabin) is quite an expensive event, therefore, as a rule, its use occurs only in luxury luxury cars designed for a specific class of demanding consumers and for special vehicles ( ambulances, municipal city services, etc.), for which this measure is compelled, in accordance with the requirements of legislation on labor protection and the creation of safe working conditions.

On the other hand, the Russian automobile fleet of domestic and imported cars encompasses a huge number of vehicles (traffic police patrol services, agricultural and forestry specialists, associated with the long-term presence of personnel in the car while fulfilling their direct functional duties - transporting patients, delivering mail, controlled bypass territories, etc.) operating for up to 20 years or more, and not satisfying individual owners and special organizations ennym requirements of acoustic comfort, as well as in view of the fact that the long life of these vehicles has worsened their acoustic comfort. A long period of operation of the car entails the loss of viscoelastic vibration damping properties of the standard (serially installed during conveyor assembly of the car) vibration damping linings mounted on the body panel. They become hard, brittle, covered with trembling, etc., due to exposure to positive and negative temperatures, moisture, etc. For linings that contain a soft sound-absorbing layer, there are additional problems of irreversible deformation (compaction) due to mechanical stresses during long-term operation, which leads to a loss of sound-absorbing properties. Along with mechanical influences, they are exposed to moisture (get wet), which subsequently even more densifies the sound-absorbing layer. In this regard, in some cases, the use of additional

a noise-reducing car kit may be associated with a partial dismantling of old (lost their conditional qualities) overlays for new ones. At the same time, new ones mean the installation of more efficient ones (in comparison with the new full-time ones that were installed many years ago on the assembly line). At the same time, the urgent problem of satisfying the wishes of these private owners and specialized organizations is to independently improve (modify) the vehicles they use in terms of improving acoustic comfort in the cabin, both independently and, in some cases, with the help of third-party specialists and organizations in the field of maintenance and repair of automobiles.

This is the reason for the appearance on the world automobile market of special individual noise-reducing car kits, including packaged small-sized sets of rectangular sheets of self-adhesive noise-absorbing vibro-damping material, the adhesive base of which is covered with an easily removable protective film, see the DYNAMAT materials specification of the American company Dynamic Control, 3042 Symmes road, Hamilton, OH OH 45015 (PROTOTYPE, prospectus attached). The practical implementation of the indicated complete set is associated with the following technological operations. By dismantling the details of the car’s interior and degreasing the surface of the metal or polymer panel of the body on which this material is to be installed, using a cutting tool (scissors, knife), a lining (module) is cut from the sheets of material in the set of the appropriate geometry, and the protective layer (film) is removed , paper) and by pressing it with a hand or a special roller (the use of magnetic rollers is known), this gasket is mounted (glued with high adhesion) on a given surface of the body panel. At the same time, the specialist-executor of this technological process is guided by his own knowledge and practical experience in the field of noise reduction in the car interior. As a rule, this practice does not always allow us to achieve a significant expected result.

The applicant is not aware of any similar kits that would be produced by domestic manufacturers.

or a set of small sheets of noise insulation, located in the set, it is necessary to cut out the corresponding module by preliminary cutting the parts from, for example, cardboard, in order to avoid increased unjustified consumption of material or marriage. It is not always convenient and possible for an individual car owner, because required, although not complicated, but nevertheless, special equipment and cutting tools, relevant practical experience. In addition, these operations are associated with additional time costs.

The objective of the utility model is the creation of an additional noise-reducing car kit, for individual purposeful choice of the degree and improvement of acoustic comfort in the passenger compartment, taking into account the wishes of the owner of the car (or the leadership of a specialized enterprise operating a vehicle), prepared as much as possible for installation, with a minimum of additional preparatory operations. The claimed technical solution also implies the use of a range of additional individual kits for various modifications of cars of different classes, for example, luxury kits, normal. Another objective of the utility model is the use of optimizing the functionality of the kit by taking into account the individual degree of vibration and noise insulation or sound absorption of individual cabin panels, taking into account their contribution to the total sound field of the cabin space, the frequency composition of the noise emitted by a particular cabin panel, the preferred temperature conditions and loading of the corresponding panels, the required damping, sound insulation, or increase the dynamic stiffness of the panel, or optimal anija desired characteristics. These features and tasks are solved by the manufacturer of automobile noise reduction kits based on previously conducted research and experiments on specific models (families of models or classes) of cars.

The essence of the utility model lies in the fact that in the well-known noise-reducing car kit for additional individual purposeful choice and degree of improvement, taking into account the wishes of the consumer, acoustic comfort in the car interior, containing a composite multi-layer self-adhesive vibration-damping-lining cladding of the inner surfaces of the cabin panels, glued the surface of which (cladding) is protected by an easily removable coating, the cladding consists of separate autonomous

self-adhesive modules, the outer contour of each of which at least partially repeats the outline of the mating corresponding panel of the car cab, each of the individual modules containing at least one layer of vibration-damping material, and the adhesive surface area of each individual module is at least 50 .. .70% of the area mated to the panel module of the car cab. Inside the outer contour of each individual module, at least there should be a projection of the central part of the corresponding panel of the vehicle body cab onto the plane of the corresponding module. Some of the modules may contain a reinforcing tightening and / or sound-absorbing layer. Specific modules can have through slots, cut-outs or through or blind holes to ensure tight installation on relief surfaces of the panel, tightly enclosing functional elements fixed to them, or to allow passage of various communication links (pipelines, electrical wires, rods, cables and etc.). Moreover, modules containing a reinforcing layer of increased stiffness can be preformed to the geometry of the mating inner panel of the cab. The easily removable cover of individual modules (usually a film or paper) can be marked (alphabetic, digital, verbal), indicating the accessory of each vibro-damping module of the corresponding interior panel, indicating the corresponding module orientation on the panel surface. Moreover, inside the package of the kit there may be additional instructions explaining the detailed technology for installing a specific module on the corresponding panel of the cabin. Such an instruction can also be depicted directly on the surface of the package itself, which itself can represent, for example, a rigid cardboard product (box), or a film product (bag). To increase the durability of the modules, they can be packaged autonomously hermetically in thin pne-, gas-, moisture-proof material, for example, in a plastic film, before putting them into the package. In such cases, the marking of the modules can be carried out directly on each stand-alone package of the panel.

Thus, unlike the prototype, the proposed utility model is an object more attractive, reliable, convenient and efficient, since it becomes possible to use ready-made soundproof vibration damping modules of a given material composition and a given geometric shape selected

(adapted) for a given family of cars, such as, for example, a family of classic four-wheel drive or front-wheel drive cars of the Volga Automobile Plant.

A graphical description of the utility model is given on one of the specific examples of noise reduction kits developed for VAZ21099 cars in two sets - normal and luxury. It should be especially noted that the quantitative and qualitative composition of a set of modules in a package may vary to one degree or another, both for the same family of car models and for different car models.

In FIG. 1 shows a noise reduction car kit in a rigid package, and FIG. 2 in a soft, film package.

In Fig. 3 shows the layout of the modules included in the kit on the panels of the body and passenger compartment of the car in the normal configuration, in Fig. 4 luxury equipment.

Figure 5 ... 8 shows examples of the installation of individual modules of the kit in the cabin, respectively, of the front floor modules (Fig. 5); front flap modules and front wheel arches (Fig.6); air intake duct module and walls under the rear seat (Fig. 7); kriipi modules (Fig. 8).

Figures 9 ... 12 show the hood panel modules, respectively, front left, front right, rear left and rear right.

In FIG. 13 ... 16 shows the modules of the panel of the duct duct, respectively, vertical right, vertical left, horizontal right and horizontal left.

In FIG. 17-18 show the front panel panel modules, respectively, the upper and lower.

In FIG. 19 ... 25 shows the modules of the floor panels, respectively - the front floor is left, the front floor is right, under the front left seat, under the front right seat, middle floor (right and left, Fig.23), under the rear left seat, under the rear right sitting.

On Fig shows the module panel krappi (in the kit there are three such modules).

On Fig and 28 shows the modules of the panel of the arches of the front wheels.

On Fig-33 shows the panel modules of the vertical wall, respectively, under the right rear seat and under the left rear seat.

Noise reducing car kit, for individual

focused on the choice and degree of improvement of acoustic comfort in the car interior, contains 1 composite multilayer self-adhesive, vibration-damping-lining cladding of the inner surfaces of the body panels, the adhesive surface 2 of which is protected by an easily removable coating 3 (this can be a special film or paper). The lining of the inner panels of the body consists of separate noise-vibration modules shown in Figs. 5 ... 33, the outer contour of each of which at least partially repeats the outlines of the mating corresponding panel of the passenger compartment or the car body, each of the individual modules being at least contains a weight layer 4 of vibration-damping material, and the area of each individual module is at least 50-70% of the area of the panel of the passenger compartment or car body that is interfaced with the module, and the kit is equipped with an instruction sheet 5 installation of modules on the panels of the car body or passenger compartment. Inside the outer contour of each individual module, at least there is a projection of the central part of the corresponding panel of the body or passenger compartment onto the plane of the corresponding module. Some of the modules may contain a reinforcing toughening layer 6 and / or a soft porous sound-absorbing layer 7. Some of the modules have through slots 8, cutouts 9 and openings 10, to ensure tight installation on the relief surfaces of the body or interior panels, tight coverage of the functional elements that are fixed to them, or providing passage of various communication links. An easily removable coating may be marked with a label indicating that the module belongs to the corresponding interior or body panel. The instruction sheet 5 can be presented directly on the package 1, which in turn can be rigid (for example, a plastic or cardboard box), or a soft film (for example, in the form of a plastic wrap). In turn, each individual module can be equipped with an individual sealed, dust and water tight wrapper. Modules containing reinforcing layer 6 of stiffness can be preformed into the geometry of the mating interior panel of the passenger compartment or body. Some of the individual modules for a particular body or interior panel can be implemented in a composite structure. V After opening the package 1, it is necessary to carefully read the diagram of the instruction 5 for installing the modules contained in the package on the panels of the car body or the passenger compartment. Installation of modules in turn can begin, as a rule, from any panel or body, guided by the convenience and minimal labor. At the same time, the corresponding interior detail is first dismantled, for example, the roof upholstery, then the inner metal surface of the Krešosi panel is cleaned and degreased. From the corresponding module, Fig. 26, an easily removable coating 3 of the adhesive layer 2 is dismantled, after which the module is applied with an adhesive layer to the cleaned surface of the panel. Then, by hands, or with a special roller (roller), it is pressed against the panel over its entire surface. This ensures the final fixing of the module, as shown in Fig.7. After that, the previously dismantled interior detail is replaced. In this sequence, all other modules are installed. Pikakih, in addition to the described major technological operations is no longer required. It is important to consider that, as a rule, the most vibroactive zone of the panel is its most dynamically pliable central part (the most remote from the peripheral places of panel fastening on a rigid power frame structure). Therefore, the noise-damping module must always cover this central part, while being in the zone of maximum deformation of the body panel. The manufacturer of the modules takes this circumstance into account with the corresponding geometric shape and the specific structure of the structure. Therefore, the consumer (user), in accordance with the installation technology of the noise reduction car kit, places the modules on the most vibroactive zones of the panel. A big advantage of the proposed kit, in comparison with the prototype, is the complete absence of waste vibration-damping material that is inevitable in the case of cutting individual modules by the user from solid rectangular sheets or small rolls, as is the case in the prototype. This not only saves material and reduces the cost of the tuning process itself (refinement), but also eliminates the problem of the need for waste disposal by the end user, which, for example, when burning these wastes, can remove highly toxic substances and pollute the environment. In this case, the use of kits by consumers is non-waste, since the direct manufacturer and

the supplier of complete sets to the distribution network, the cut residues, after the manufacture of the modules, usually allows this material to be processed for reuse in the technological process in the manufacture of the same modules.

Claims (8)

1. A noise-reducing car kit for an individual, additional, selectively targeted and degree of improvement of acoustic comfort in the car interior, containing a composite multilayer self-adhesive, vibration-damping-lining cladding of the inner surfaces of the body and interior panels, the adhesive surface of which is protected by an easily removable coating, compactly placed in the package, characterized in that the cladding consists of separate noise vibration damping modules, the outer contour of each of which is at least repeats the shape of the corresponding mating panel of the vehicle interior, each of the individual modules contains at least one layer of noise-damping material, and the area of each individual module is at least 50-70% of the area of the vehicle interior panel mating with the module, while the kit is equipped with the circuit- instructions for installing modules on the panels of the passenger compartment contained in the package.  2. The kit according to claim 1, characterized in that inside the outer contour of each individual module there is at least a projection of the central part of the corresponding panel of the vehicle interior onto the plane of the corresponding module.  3. The kit according to claims 1 and 2, characterized in that at least part of the modules contains a reinforcing tightening layer and / or a soft sound-absorbing layer.  4. A kit according to claims 1 to 3, characterized in that at least part of the modules has through slots, cuts, and / or through and / or blind holes to ensure tight installation on the relief surfaces of the interior panel, tight coverage of functional elements on fixed them, or providing passage of various communication links.  5. A kit according to claims 1 to 4, characterized in that a special marking is applied on the easily removable coating of the individual modules, indicating that the module belongs to the corresponding interior panel.  6. The kit according to claims 1 to 5, characterized in that the instruction diagram is presented directly on the package.  7. A kit according to claims 1 to 6, characterized in that the modules containing the reinforcing layer of increased rigidity are preformed to the geometry of the mating interior panel of the cabin. 8. A kit according to claims 1 to 7, characterized in that part of the individual modules for specific panels of the body or interior can be made integral.