Heat preservation and sound insulation sealing strip structure for automobile

Abstract

The utility model relates to the technical field of sealing strips, and discloses a heat preservation and sound insulation sealing strip structure for an automobile, which comprises a sealing strip main body capable of being used for the automobile, a cavity is arranged in the sealing strip main body, a heat preservation and sound insulation assembly is arranged in the cavity, and the heat preservation and sound insulation assembly comprises a filling block and a reinforcing rib. A cavity is formed in the sealing strip body, a filling block is fixed inside the cavity in a bonding mode, reinforcing ribs are fixed inside the filling block, a bonding mechanism is arranged on the surface of the sealing strip body, a dustproof component is arranged on the surface of the bonding mechanism, and the reinforcing ribs are symmetrically distributed relative to the longitudinal central axis of the filling block. When the device is used, the sealing strip body can have the heat preservation and sound insulation functions by means of the heat preservation and sound insulation assembly, and therefore the problems that an existing device can only achieve sealing and cannot have the heat preservation and sound insulation functions, energy loss is increased when an air conditioner is used, and the driving and rest experience feeling of people in a vehicle is reduced are solved.

Description

Technical Field

[0001] This utility model relates to the field of sealing strip technology, specifically to a thermal insulation and soundproofing sealing strip structure for automobiles. Background Technology

[0002] Cars are a very common means of transportation in our daily lives. At the joints of some parts on the car's surface, such as the doors and trunk, sealing strips are used to ensure the airtightness of these joints.

[0003] However, some existing sealing strips are simply constructed of rubber pads. While this structure can achieve a certain sealing effect, its heat insulation and sound insulation effects are poor. Poor heat insulation causes the hot air inside the vehicle to escape more quickly when the air conditioner is turned on, thus requiring the air conditioner to operate at a higher power to achieve the expected heat insulation effect, which increases energy consumption. Furthermore, poor sound insulation allows external noise to enter the vehicle, affecting the rest of the occupants and the driving experience. Therefore, a new heat insulation and sound insulation sealing strip structure for automobiles is proposed. Utility Model Content

[0004] The purpose of this utility model is to provide a thermal insulation and soundproofing sealing strip structure for automobiles, in order to solve the problem mentioned in the background art that some existing sealing strips are simple rubber pads. Although this structure can achieve a certain sealing effect, its thermal insulation and soundproofing effects are poor. Poor thermal insulation will cause the high-temperature gas inside the vehicle to escape more quickly when the air conditioner is turned on. Therefore, the air conditioner needs to be operated at a higher power to achieve the expected thermal insulation effect, which will increase energy consumption. In addition, poor soundproofing will allow external noise to enter the vehicle, thus affecting the rest of the passengers and the driving experience.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a thermal insulation and soundproofing sealing strip structure for automobiles, comprising a sealing strip body suitable for automobiles, wherein a cavity is provided inside the sealing strip body, and a thermal insulation and soundproofing component is provided inside the cavity, the thermal insulation and soundproofing component comprising a filling block and a reinforcing rib, the filling block being bonded and fixed inside the cavity, the reinforcing rib being fixed inside the filling block, an adhesive mechanism being provided on the surface of the sealing strip body, and a dustproof component being provided on the surface of the adhesive mechanism.

[0006] Preferably, the reinforcing ribs described above have a "C" shaped structure, and the reinforcing ribs are symmetrically distributed about the longitudinal central axis of the filling block.

[0007] Preferably, the reinforcing ribs described above are provided in several groups, and the several groups of reinforcing ribs are distributed at equal intervals on the surface of the filling block.

[0008] Preferably, the sealing strip body, cavity and filling block described above are all of the "I" shape.

[0009] Preferably, the aforementioned adhesive mechanism includes a sponge pad and an adhesive layer, wherein the sponge pad is fixed to the surface of the sealing strip body, and the adhesive layer is disposed on the top surface of the sponge pad.

[0010] Preferably, the dustproof component mentioned above includes a dustproof strip and a tear strip, wherein the dustproof strip is adhered to the top surface of the adhesive layer and the tear strip is fixed to the center of one end of the dustproof strip.

[0011] Compared with the prior art, the present invention, by adopting the above technical solution, has the following technical effects:

[0012] This invention, through the cooperation of the sealing strip body, cavity, and thermal insulation and sound insulation components, enables the sealing strip body itself to have thermal insulation and sound insulation functions when in use. This solves the problem that existing devices can only achieve sealing but cannot provide thermal insulation and sound insulation functions, which would increase energy consumption when using air conditioning and reduce the driving and resting experience of passengers in the vehicle.

[0013] This invention, through the cooperation of the adhesive mechanism and the dustproof component, allows the sealing strip body to be installed onto the surface of the vehicle door panel or trunk using the adhesive mechanism, thereby improving the ease of installation. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the cavity cross-sectional structure of this utility model;

[0017] Figure 3 This is a schematic cross-sectional view of the sealing strip body of this utility model;

[0018] Figure 4 This is a three-dimensional structural diagram of the thermal insulation and soundproofing component of this utility model;

[0019] Figure 5 For the present utility model Figure 1 Enlarged structural diagram at point A in the middle.

[0020] Explanation of reference numerals in the attached drawings: 1. Sealing strip body; 2. Cavity; 3. Thermal insulation and soundproofing component; 301. Filler block; 302. Reinforcing rib; 4. Adhesive mechanism; 401. Sponge pad; 402. Adhesive layer; 5. Dustproof component; 501. Dustproof strip; 502. Tear strip. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] It should be noted that the structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which this application can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size should still fall within the scope of the technical content disclosed in this application, provided that they do not affect the effects and purposes that this application can produce. Example

[0023] In the existing technology, some sealing strips are constructed as simple rubber pads. Although this structure can achieve a certain sealing effect, its heat insulation and sound insulation effects are poor. Poor heat insulation will cause the hot air inside the vehicle to escape more quickly when the air conditioner is turned on. Therefore, the air conditioner needs to be operated at a higher power to achieve the expected heat insulation effect, which will increase energy consumption. In addition, poor sound insulation will allow external noise to enter the vehicle, thus affecting the rest of the passengers and the driving experience.

[0024] Please see Figure 1-5 This utility model provides a technical solution: a thermal insulation and soundproof sealing strip structure for automobiles, including a sealing strip body 1 that can be used in automobiles. The sealing strip body 1 is made of rubber. A cavity 2 is opened inside the sealing strip body 1. In order to enable the sealing strip body 1 to have thermal insulation and soundproof functions, a thermal insulation and soundproof component 3 is provided inside the cavity 2. The thermal insulation and soundproof component 3 includes a filling block 301 and a reinforcing rib 302. The filling block 301 is bonded and fixed inside the cavity 2, and the reinforcing rib 302 is fixed inside the filling block 301. An adhesive mechanism 4 is provided on the surface of the sealing strip body 1, and a dustproof component 5 is provided on the surface of the adhesive mechanism 4.

[0025] The filling block 301 is made of rubber and plastic closed-cell foam. The sound insulation principle of this material is as follows (this principle is a publicly available technology):

[0026] I. Damping effect:

[0027] Rubber and plastic materials (such as nitrile rubber and polyvinyl chloride) have good elasticity and viscoelastic damping. When sound waves hit the material surface and try to make it vibrate, the internal friction of the material and the deformation of the molecular chains will convert some of the sound energy into heat energy and dissipate it. This energy conversion process effectively reduces the vibration amplitude of the material itself, thereby reducing the transmission of sound to the other side. When the gas in the closed-cell structure is compressed by the sound waves, friction and heat dissipation will also occur, which will enhance the damping effect.

[0028] II. Acoustic Impedance Mismatch and Reflection in Closed-Cavity Structures:

[0029] Acoustic impedance mismatch: When sound propagates in different media, it will be reflected and transmitted at the interface. The acoustic impedance of rubber and plastic closed-cell foam is much greater than that of air. When sound waves propagate from air to the surface of the material, due to this huge impedance difference, a considerable portion of the sound wave energy will be reflected back to the original space instead of entering the interior of the material.

[0030] Closed-cell structure: Each independent closed-cell bubble is a small acoustic impedance interface. When sound waves propagate inside the material, they will encounter countless such bubble wall interfaces. Each time they encounter an interface, some sound waves will be reflected and scattered. This multiple reflection and scattering greatly increases the path length of sound waves propagating inside the material, and also increases the chance of sound energy being converted into heat energy (through material damping and gas friction).

[0031] III. Sealing performance:

[0032] Closed-cell rubber and plastic foam typically has good flexibility and resilience, and can closely adhere to the surface of the wrapped object or fill gaps. This effectively blocks the "sound leakage" path through gaps and holes, which is often the main reason for sound insulation failure.

[0033] The 301 filler block, made of rubber and plastic closed-cell foam, not only provides sound insulation but also has thermal insulation properties. Its thermal insulation principle is as follows (this principle is a publicly available technology):

[0034] I. Gas isolation:

[0035] The material is filled with a large number of independent, closed microbubbles (closed-cell structure). These bubbles are filled with still air or other gases with low thermal conductivity. Still air is an excellent insulator, with a thermal conductivity much lower than that of solid materials. Heat is difficult to conduct effectively through these still gases because the movement of gas molecules is restricted, and convective heat transfer is almost non-existent.

[0036] II. Blocking of heat conduction paths in solids:

[0037] Although the thermal conductivity of the rubber and plastic material that makes up the cell walls is higher than that of the gas, the closed-cell structure makes the continuous heat transfer path of the solid material extremely tortuous and long. Heat must be transferred along these complex, long solid skeletons that are separated by a large number of gas, which greatly increases the path and significantly increases the resistance. As a result, the overall effective thermal conductivity of the material is much lower than that of its solid components.

[0038] To support the filler block 301, the reinforcing ribs 302 have a "C" shape and are symmetrically distributed about the longitudinal central axis of the filler block 301. Several groups of reinforcing ribs 302 are provided, and these groups are evenly spaced on the surface of the filler block 301. The sealing strip body 1, the cavity 2, and the filler block 301 all have an "I" shape. To fix the sealing strip body 1 to the vehicle surface, an adhesion mechanism 4 is provided. The adhesion mechanism 4 includes a sponge pad 401 and adhesive. The adhesive layer 402 and the sponge pad 401 are fixed to the surface of the sealing strip body 1. The adhesive layer 402 is set on the top surface of the sponge pad 401. The adhesive layer 402 is composed of double-sided adhesive. In order to prevent external dust from adhering to the surface of the adhesive layer 402 and affecting its adhesion, a dustproof component 5 is provided. The dustproof component 5 includes a dustproof strip 501 and a tear strip 502. The dustproof strip 501 is adhered to the top surface of the adhesive layer 402, and the tear strip 502 is fixed at the center of one end of the dustproof strip 501.

[0039] In terms of working principle or structural principle, before installing the sealing strip body 1, the staff can tear the dustproof strip 501 with the tear strip 502 to separate it from the adhesive layer 402, and then use the adhesive layer 402 to install the sealing strip body 1 onto the cleaned vehicle surface. During use, the filler block 301 and the reinforcing rib 302 can improve the vehicle's heat insulation and sound insulation effect.

[0040] In summary, this device has advantages such as good heat insulation and sound insulation, as well as easy installation.

[0041] Those skilled in the art will understand that the features described in the various embodiments and / or claims of this utility model can be combined or combined in various ways, even if such combinations or combinations are not explicitly described in this utility model. In particular, the features described in the various embodiments and / or claims of this utility model can be combined or combined in various ways without departing from the spirit and teachings of this utility model. All such combinations and / or combinations fall within the scope of this utility model.

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