CN114974191A - Sound insulation body and sound insulation pad for automobile - Google Patents
Sound insulation body and sound insulation pad for automobile Download PDFInfo
- Publication number
- CN114974191A CN114974191A CN202210505798.XA CN202210505798A CN114974191A CN 114974191 A CN114974191 A CN 114974191A CN 202210505798 A CN202210505798 A CN 202210505798A CN 114974191 A CN114974191 A CN 114974191A
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- sound
- sound insulation
- transmission rope
- rope
- limiting
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- 238000009413 insulation Methods 0.000 title claims abstract description 80
- 230000005540 biological transmission Effects 0.000 claims abstract description 58
- 230000000712 assembly Effects 0.000 claims abstract description 30
- 238000000429 assembly Methods 0.000 claims abstract description 30
- 238000010521 absorption reaction Methods 0.000 claims abstract description 21
- 239000002184 metal Substances 0.000 claims abstract description 20
- 229910052751 metal Inorganic materials 0.000 claims abstract description 20
- 239000012528 membrane Substances 0.000 claims abstract description 16
- 230000000694 effects Effects 0.000 claims description 11
- 239000000463 material Substances 0.000 claims description 6
- 238000009826 distribution Methods 0.000 claims description 4
- 230000009467 reduction Effects 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 3
- 230000009975 flexible effect Effects 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000011358 absorbing material Substances 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R13/00—Elements for body-finishing, identifying, or decorating; Arrangements or adaptations for advertising purposes
- B60R13/08—Insulating elements, e.g. for sound insulation
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/162—Selection of materials
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Mechanical Engineering (AREA)
- Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)
Abstract
The invention provides a sound insulation body and a sound insulation pad for an automobile, wherein the sound insulation body comprises a first limiting piece and a second limiting piece movably connected with the first limiting piece, a sound insulation cavity is enclosed by the first limiting piece and the second limiting piece, a plurality of limiting assemblies are arranged in the sound insulation cavity, two ends of each limiting assembly are respectively fixedly connected with the first limiting piece and the second limiting piece, a plurality of sound transmission rope assemblies which are distributed in a staggered mode are arranged through the limiting assemblies, a membrane sound absorption layer is further arranged in the sound insulation cavity, and the membrane sound absorption layer is connected with the sound transmission rope assemblies through transmission ropes. The sound-insulating pad comprises a sound-insulating pad body, a sound-insulating layer and a metal wire core, wherein the sound-insulating layer is arranged on the sound-insulating pad body, the metal wire core is arranged on the sound-insulating layer, the sound-insulating layer is arranged on the sound-insulating layer, the metal wire core is arranged on the sound-insulating layer, the sound-insulating layer is arranged on the sound-insulating layer, and the sound-insulating layer is arranged on the sound-insulating layer.
Description
Technical Field
The invention relates to the technical field of sound insulation pads, in particular to a sound insulation body and a sound insulation pad for an automobile.
Background
The publication No. CN103890839B provides a sound insulating body and a sound insulating pad for an automobile, wherein the sound insulating pad for a cowl is formed by laminating a front layer, a film vibration type sound absorbing layer, and a perforated sound insulating layer. Here, in the laminate of the film vibration type sound absorbing layer and the perforated sound insulating layer, the inner diameter and the opening ratio of the perforated portion of the perforated sound insulating layer are set, and the resonance phenomenon of the vibration of the film vibration type sound absorbing layer and the perforated sound insulating layer is suppressed by correlating with the noise component in the low-frequency range of the noise. The above-described device uses a laminate of the film vibration type sound absorbing layer and the perforated sound insulating layer so that the vibration of the laminate is maintained within a range of phase difference associated with at least a noise component in a low frequency range of the noise to suppress a resonance phenomenon between the vibration of the film vibration type sound absorbing layer and the vibration of the perforated sound insulating layer, but the sound insulating effect by suppressing only the resonance of the low frequency noise is not preferable and needs to be further improved.
Disclosure of Invention
The present invention is directed to a sound insulating body and a sound insulating pad for an automobile, which solve the problems of the related art.
In order to achieve the purpose, the invention provides the following technical scheme:
the utility model provides a sound insulation body, includes first locating part and the second locating part that meets with first locating part activity, synthetic syllable-dividing cavity is enclosed to first locating part and second locating part, is located be equipped with the spacing subassembly that a plurality of both ends respectively met with first locating part and second locating part are fixed in the syllable-dividing cavity, run through spacing subassembly is equipped with the sound transmission rope subassembly of a plurality of crisscross distributions, is located still be equipped with membrane sound absorption layer in the syllable-dividing cavity, membrane sound absorption layer meets with sound transmission rope subassembly through the driving rope.
Preferably, three limiting assemblies are arranged in the sound insulation cavity and are arranged on the same vertical plane.
Preferably, the limiting component includes a bearing component having one end fixedly connected to the first limiting component, a fixing column movably inserted into the bearing component and having one end, the other end of the fixing column is fixedly connected to the second limiting component, the sound transmission rope component is disposed through the fixing column, sound absorbing material is filled in the fixing column and around the outer end of the sound transmission rope component, a spring is disposed in the bearing component, and two ends of the spring are respectively fixedly connected to the fixing column and the bearing component.
Preferably, three sound transmission rope assemblies are arranged in the fixing column in a penetrating mode in the horizontal direction, two sound transmission rope assemblies are arranged in the fixing column in a penetrating mode in the vertical direction, the sound transmission rope assemblies are evenly distributed between the sound transmission rope assemblies arranged in the adjacent horizontal direction in the vertical direction, and the five sound transmission rope assemblies penetrate through the second limiting piece and are located outside the sound insulation cavity.
Preferably, the sound transmission rope subassembly includes the wire core, is located the outside cladding of wire core has the rubber layer, is located a plurality of open slots have evenly been seted up on the rubber layer, the outer terminal surface of wire core meets with the interior bottom surface of open slot, the sound transmission rope is the wire, the one end of driving rope sees through the annular groove mouth of seting up on the rubber layer and meets with the wire core is fixed, the driving rope other end sees through the membrane layer of absorbing sound and meets with first locating part is fixed, and works as when the spring is in the natural state of stretching out and drawing back, the driving rope is in the tensioning state.
The automobile sound insulation pad comprises a sound insulation pad body, wherein the sound insulation pad body is internally provided with a plurality of sound insulation bodies.
Preferably, a plurality of sound insulation bodies are uniformly distributed in the sound insulation pad body and are adjacent to each other, the sound insulation bodies are connected through the sound transmission rope assemblies, the sound transmission rope assemblies are distributed in a staggered mode to form a net-shaped sound insulation layer, and the sound insulation bodies are located at nodes of the net-shaped sound insulation layer to form a dot-shaped sound insulation layer.
Compared with the prior art, the invention has the beneficial effects that:
the sound transmission rope assemblies distributed in a staggered manner increase the toughness strength of the sound insulation pad body and prolong the service life of the sound insulation pad body; in addition, the sound transmission rope assemblies distributed in a staggered mode are used for absorbing noise transmitted to the sound insulation pad body, and partial noise is transmitted to the sound insulation body in a solid sound transmission medium mode through the metal wire core, so that the noise transmitted to the sound insulation body is subjected to noise reduction treatment through the sound insulation body distributed at the node of the mesh sound insulation layer, and the sound insulation body is covered in a surface mode through points and lines, so that the overall strength of the sound insulation pad body is improved, and the noise reduction effect is improved; in addition, through the matching of the transmission rope and the membrane sound absorption layer, when noise is transmitted to the membrane sound absorption layer through the transmission rope, the membrane sound absorption layer is caused to vibrate to consume sound energy, noise reduction treatment on the noise is realized, part of the noise is transmitted into the fixed column through the metal wire core, and the noise is absorbed by the sound absorption material in the fixed column, so that the sound insulation effect is further improved; and through the fixed column and the cooperation that holds carrier and spring, when the foreign object collided the sound insulation pad body, the fixed column can be under the effect of spring towards holding the flexible activity in the carrier, and then driven the flexible activity of second locating part towards first locating part by the mounting to this realization buffering effect.
Drawings
FIG. 1 is a schematic view of the overall structure of the sound insulating pad body according to the present invention;
FIG. 2 is a schematic view of a structure of a first limiting member and a second limiting member;
FIG. 3 is an enlarged view of the structure at A in FIG. 2;
FIG. 4 is an enlarged view of the structure at B in FIG. 2;
FIG. 5 is a schematic view of a mesh soundproof layer and a dot-shaped muffling layer according to the present invention;
FIG. 6 is a schematic view of the fitting structure of the wire core and the rubber layer in the present invention;
FIG. 7 is a schematic view of the structure of the open slot and the annular notch of the present invention.
In the figure: the sound insulation structure comprises a first limiting part 1, a second limiting part 2, a sound insulation cavity 3, a limiting component 4, a bearing component 401, a fixing column 402, a spring 403, a sound transmission rope component 5, a metal wire core 501, a rubber layer 502, an open slot 503, an annular slot 504, a sound absorption layer 6, a transmission rope 7, a sound insulation cushion body 8, a netted sound insulation layer 9 and a dotted sound insulation layer 10.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1:
a sound insulation body comprises a first limiting part 1 and a second limiting part 2 movably connected with the first limiting part 1, wherein the first limiting part 1 and the second limiting part 2 enclose a sound insulation cavity 3, a plurality of limiting assemblies 4 are arranged in the sound insulation cavity 3, the two ends of each limiting assembly are fixedly connected with the first limiting part 1 and the second limiting part 2 respectively, a plurality of sound transmission rope assemblies 5 which are distributed in a staggered mode are arranged through the limiting assemblies 4, a membrane sound absorption layer 6 is further arranged in the sound insulation cavity 3, and the membrane sound absorption layer 6 is connected with the sound transmission rope assemblies 5 through transmission ropes 7;
specifically, three limiting assemblies 4 are arranged in the sound insulation cavity 3, and the three limiting assemblies 4 are arranged on the same vertical surface; the limiting component 4 comprises a bearing component 401, one end of the bearing component is fixedly connected with the first limiting component 1, one end of the bearing component is movably inserted into the bearing component 401 and is provided with a fixed column 402, the other end of the fixed column 402 is fixedly connected with the second limiting component 2, the sound transmission rope component 5 penetrates through the fixed column 402, the sound absorption material is filled in the fixed column 402 and surrounds the outer end part of the sound transmission rope component 5, a spring 403 is arranged in the bearing component 401, and two ends of the spring 403 are respectively fixedly connected with the fixed column 402 and the bearing component 401; three sound transmission rope assemblies 5 are arranged in the horizontal direction and penetrate through the fixing column 402, two sound transmission rope assemblies 5 are arranged in the vertical direction and penetrate through the fixing column 402, the sound transmission rope assemblies 5 arranged in the vertical direction are uniformly distributed between the adjacent sound transmission rope assemblies 5 arranged in the horizontal direction, and the five sound transmission rope assemblies 5 penetrate through the second limiting piece 2 and are arranged outside the sound insulation cavity 3; the sound transmission rope component 5 comprises a metal wire core 501, a rubber layer 502 is wrapped outside the metal wire core 501, a plurality of open grooves 503 are uniformly formed in the rubber layer 502, the outer end face of the metal wire core 501 is connected with the inner bottom face of the open grooves 503, a transmission rope 7 is a metal wire, one end of the transmission rope 7 is fixedly connected with the metal wire core 501 through an annular groove 504 formed in the rubber layer 502, the other end of the transmission rope 7 is fixedly connected with the first limiting part 1 through a film sound absorption layer 6, and when the spring 403 is in a natural stretching state, the transmission rope 7 is in a tensioning state.
Example 2:
a sound insulation pad for an automobile comprises a sound insulation pad body 8, wherein a plurality of sound insulation bodies as in embodiment 1 are arranged in the sound insulation pad body 8; wherein, a plurality of sound insulation bodies are even distributes in sound insulation pad body 8, and adjacent sound insulation body is connected through sound transmission rope subassembly 5, and crisscross a plurality of sound transmission rope subassemblies 5 that distribute form netted puigging 9, and a plurality of sound insulation bodies are located the node of netted puigging 9 to constitute punctiform amortization layer 10.
The use principle of the invention is as follows: the plurality of sound transmission rope assemblies 5 are distributed in the sound insulation pad body 8 in a staggered mode through the first limiting pieces 1, so that the toughness strength of the sound insulation pad body 8 is improved through the sound transmission rope assemblies 5 distributed in a staggered mode, and the service life of the sound insulation pad body is prolonged; the sound transmission rope assemblies 5 distributed in a staggered mode are used for absorbing noise transmitted to the sound insulation pad body 8, and partial noise is transmitted to the sound insulation body in a solid sound transmission medium mode through the metal wire core 501, so that the noise transmitted to the sound insulation body is subjected to noise reduction treatment through the sound insulation body distributed at the node of the net-shaped sound insulation layer 9, and the noise reduction effect is improved while the integral strength of the sound insulation pad body 8 is improved due to the fact that the point and the line form surface coverage;
when the noise transmitted to the sound insulation pad body 8 enters the sound insulation pad body 8, part of the noise is absorbed by an open slot 503 arranged on the rubber layer 502, and part of the noise is transmitted into the sound insulation cavity 3 through the wire core 501, specifically, after the noise is transmitted to the sound insulation cavity 3 through the wire core 501, part of the noise is transmitted to the transmission rope 7, in the process of transmitting the sound, the transmission rope 7 vibrates slightly, when the noise is transmitted to the membrane sound absorption layer 6 through the transmission rope 7, the membrane sound absorption layer 6 vibrates to consume sound energy, noise reduction treatment on the noise is realized, part of the noise is transmitted into the fixed column 402 through the wire core 501, and the noise is absorbed by the sound absorption material in the fixed column 402 to further improve the noise reduction effect;
wherein, the punctiform sound-deadening layer 10 formed by the sound-insulating body also has a buffer function, when the foreign object collides with the sound-insulating pad body 8, the fixing column 402 can move in a telescopic way towards the bearing part 401 under the action of the spring 403, and then the fixing column 402 drives the second locating part 2 to move in a telescopic way towards the first locating part 1, so as to realize the buffer effect, in particular, the end surface of the sound-insulating pad body 8 where the first locating part 1 is located is fixed on the automobile component, when the sound-insulating pad body 8 is collided, the fixing column 402 moves towards the bearing part 401, the end part of the second locating part 2 is set to be in a state of moving in the first locating part 1, wherein, the moving amplitude of the second locating part 2 relative to the first locating part 1 is controlled by adjusting the depth of the cavity in the first locating part 1, and can be in a micro-telescopic effect, and is set according to the actual requirement, so as to avoid directly colliding with the automobile component body, the noise reduction effect is improved while automobile parts are protected;
the sound absorption material is arranged according to actual requirements by adopting the prior art;
the sound insulation pad body 8 can be made by adopting the prior art in the background technology, such as the sound insulation pad in the background technology, and is specifically arranged according to the actual situation;
the shapes and sizes of the first limiting part 1 and the second limiting part 2 are set according to actual requirements, and are not particularly limited to this;
wherein, the membrane sound absorption layer 6 can adopt the prior art in the background technology, such as a membrane vibration type sound absorption layer, the shape and the size of which are set according to the actual situation, and the detailed description is not needed;
the materials of the transmission rope 7 and the metal wire core 501 are metals with good ductility, and are specifically set according to actual requirements, and the shapes and the sizes of the transmission rope 7 and the metal wire core 501 are set according to actual requirements, which is not specifically limited;
the sound insulation cavity 3 can be in a micro-sealing structure and is specifically arranged according to actual requirements;
the film sound absorbing layer 6 is disposed near the first limiting member 1, and the bearing member 401 is fixedly connected to the first limiting member 1 through the film sound absorbing layer 6, specifically, disposed according to actual conditions.
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 (7)
1. A sound insulating body characterized in that: including first locating part (1) and with second locating part (2) that first locating part (1) activity meets, synthetic syllable-dividing cavity (3) are enclosed to first locating part (1) and second locating part (2), are located be equipped with in the syllable-dividing cavity (3) a plurality of both ends respectively with first locating part (1) and the fixed spacing subassembly (4) that meet of second locating part (2), run through spacing subassembly (4) are equipped with a plurality of crisscross distribution's biography sound rope subassembly (5), are located still be equipped with membrane sound absorbing layer (6) in the syllable-dividing cavity (3), membrane sound absorbing layer (6) meet with biography sound rope subassembly (5) through driving rope (7).
2. The sound insulating body of claim 1, wherein: three limiting assemblies (4) are arranged in the sound insulation cavity (3), and the three limiting assemblies (4) are arranged on the same vertical plane.
3. A sound-insulating body as claimed in claim 2, wherein: the limiting component (4) comprises a bearing component (401) with one end fixedly connected with the first limiting component (1), a fixing column (402) is movably inserted into the bearing component (401) with one end movably connected, the other end of the fixing column (402) is fixedly connected with the second limiting component (2), the sound transmission rope component (5) penetrates through the fixing column (402), is located in the fixing column (402) and surrounds the outer end of the sound transmission rope component (5) to be filled with sound absorption materials, a spring (403) is located in the bearing component (401), and two ends of the spring (403) are fixedly connected with the fixing column (402) and the bearing component (401) respectively.
4. A sound-insulating body as claimed in claim 3, wherein: run through be equipped with three biography sound rope subassemblies (5) on fixed column (402) and the horizontal direction, run through be equipped with two biography sound rope subassemblies (5) on fixed column (402) and the vertical direction, vertical direction sets up biography sound rope subassembly (5) are evenly laid between the biography sound rope subassembly (5) that adjacent horizontal direction set up, and five pass through second locating part (2) and lie in the outside setting of sound insulation cavity (3) in biography sound rope subassembly (5).
5. The sound insulating body of claim 4, wherein: the sound transmission rope component (5) comprises a metal wire core (501) and is located the outside of the metal wire core (501) is coated with a rubber layer (502) and is located a plurality of open grooves (503) are evenly formed in the rubber layer (502), the outer end face of the metal wire core (501) is connected with the inner bottom face of the open grooves (503), the transmission rope (7) is a metal wire, one end of the transmission rope (7) is fixedly connected with the metal wire core (501) through an annular groove opening (504) formed in the rubber layer (502), the other end of the transmission rope (7) is fixedly connected with a first limiting part (1) through a film sound absorption layer (6), and the spring (403) is in a natural stretching state, and the transmission rope (7) is in a tensioning state.
6. The utility model provides a sound insulation pad for car which characterized in that: comprises a sound-insulating pad body (8), wherein a plurality of sound-insulating bodies according to any one of claims 1-5 are arranged in the sound-insulating pad body (8).
7. The soundproof pad for automobile according to claim 6, wherein: a plurality of the even distribution of sound insulation body is in sound insulation pad body (8), and adjacent the sound insulation body is connected through sound transmission rope subassembly (5), and crisscross a plurality of distribution sound transmission rope subassembly (5) form netted puigging (9), and a plurality of the sound insulation body is located the node of netted puigging (9) to constitute punctiform amortization layer (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210505798.XA CN114974191A (en) | 2022-05-10 | 2022-05-10 | Sound insulation body and sound insulation pad for automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210505798.XA CN114974191A (en) | 2022-05-10 | 2022-05-10 | Sound insulation body and sound insulation pad for automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114974191A true CN114974191A (en) | 2022-08-30 |
Family
ID=82982044
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210505798.XA Withdrawn CN114974191A (en) | 2022-05-10 | 2022-05-10 | Sound insulation body and sound insulation pad for automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114974191A (en) |
-
2022
- 2022-05-10 CN CN202210505798.XA patent/CN114974191A/en not_active Withdrawn
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| PB01 | Publication | ||
| PB01 | Publication | ||
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Application publication date: 20220830 |