CN218447217U - Sound insulation device and electric automobile - Google Patents
Sound insulation device and electric automobile Download PDFInfo
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- CN218447217U CN218447217U CN202222532457.XU CN202222532457U CN218447217U CN 218447217 U CN218447217 U CN 218447217U CN 202222532457 U CN202222532457 U CN 202222532457U CN 218447217 U CN218447217 U CN 218447217U
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- shell
- acoustic
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- 238000009413 insulation Methods 0.000 title claims abstract description 82
- 229920002943 EPDM rubber Polymers 0.000 claims abstract description 22
- 229920000742 Cotton Polymers 0.000 claims abstract description 17
- 238000005187 foaming Methods 0.000 claims abstract description 8
- 238000010521 absorption reaction Methods 0.000 claims abstract description 6
- 238000007789 sealing Methods 0.000 claims description 11
- 239000012212 insulator Substances 0.000 claims description 5
- 229920005830 Polyurethane Foam Polymers 0.000 claims description 3
- 210000002268 wool Anatomy 0.000 claims 2
- 230000013011 mating Effects 0.000 claims 1
- 238000005253 cladding Methods 0.000 abstract description 9
- 230000000694 effects Effects 0.000 description 10
- 238000010586 diagram Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 230000000873 masking effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035807 sensation Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
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- Soundproofing, Sound Blocking, And Sound Damping (AREA)
Abstract
The utility model discloses a sound insulation device and an electric automobile, which comprises two coated sound insulation semi-shells; the two coated sound insulation semi-shells are matched with each other and used for forming a complete shell through combination to coat an object to be sound insulated; each coated sound-insulation semi-shell comprises a sound-insulation inner shell and a sound-insulation outer shell, and the sound-insulation outer shell is tightly sleeved outside the sound-insulation inner shell; the sound insulation inner shell is porous sound absorption cotton or a PU foaming plate for preventing low-frequency noise in an object to be sound insulated from leaking; the EPDM that the shell body that gives sound insulation was revealed for preventing the object high frequency noise that treats gives sound insulation fills up. The embodiment of the utility model provides a sound-proof device treats through the half casing of combination formula that the object that gives sound insulation carries out the cladding, and simple structure forms inclosed syllable-dividing space, prevents that the noise of low frequency, intermediate frequency and high-frequency section from revealing, has effectively promoted the sound insulation performance, has improved passenger's the experience of using the car.
Description
Technical Field
The utility model belongs to the technical field of the acoustics technique and specifically relates to a sound insulation system and electric automobile are related to.
Background
With the continuous development of new energy technology, electric vehicles are gradually accepted by the market and favored by consumers due to the advantages of quick start, zero emission, low noise, low energy consumption and the like.
Most people often think that new energy vehicles are quieter than traditional fuel vehicles, and otherwise, for example, motors of electric vehicles, compared with a low-frequency reverberation masking effect caused by a driving environment of an internal combustion engine, high-frequency noise of the motors is particularly prominent, and the hearing sensation is more unacceptable; for example, the compressor in the vehicle cannot achieve good shockproof effect and sound insulation effect due to the conventional structural design, so that the vehicle using experience of passengers is greatly reduced.
SUMMERY OF THE UTILITY MODEL
The utility model provides a sound-proof device and electric automobile treats through the half casing of combination formula that the object that gives sound insulation carries out the cladding, and simple structure forms inclosed syllable-dividing space, prevents that the noise of low frequency, intermediate frequency and high-frequency section from revealing, has effectively promoted the sound insulation performance, has improved passenger's the experience of using the car.
In order to solve the technical problem, an embodiment of the present invention provides a sound insulation device, which includes two coated sound insulation semi-shells;
the two coated sound insulation semi-shells are matched with each other and used for forming a complete shell through combination to coat an object to be sound insulated;
each coated sound-insulation semi-shell comprises a sound-insulation inner shell and a sound-insulation outer shell, and the sound-insulation outer shell is tightly sleeved outside the sound-insulation inner shell; the sound insulation inner shell is porous sound absorption cotton or a PU foaming plate for preventing low-frequency noise in an object to be sound insulated from leaking; the EPDM that the shell body that gives sound insulation was revealed for preventing the object high frequency noise that treats gives sound insulation fills up.
Preferably, the sound-proofing device further comprises a plurality of sealing members, and the sealing members are arranged at the combined joint between the two coated sound-proofing half shells.
As one preferable scheme, the sealing element is a magic tape.
Preferably, the sealing member is a sound-proof sealing gasket.
As one preferable scheme, the coated sound-insulating half shell is a box body with an opening at the bottom, and clamping parts matched with each other are arranged at the outer edges of the openings of the two box bodies.
As one preferable scheme, the area density of the EPDM sound insulation pad is 3400g/m 2 。
As one preferable scheme, the areal density of the porous sound absorption cotton is 600g/m 2 。
As a preferred scheme, the EPDM sound insulation pad has the thickness of 2-3mm.
As a preferred scheme, the thickness of the PU foaming plate and the porous sound-absorbing cotton is 20mm.
Another embodiment of the present invention provides an electric vehicle, wherein the electric vehicle includes the sound insulation device as described above.
Compared with the prior art, the utility model discloses beneficial effect lies in:
(1) The combined coated sound-insulation semi-shells are matched with each other to form a complete shell, the structure is simple, the object to be sound-insulated can be completely coated, the coverage rate can reach 80%, and the propagation path of the object to be sound-insulated is effectively blocked;
(2) Divide into inside and outside two-layer with noise insulation, the low grammes per square metre porous sound of inhaling of inlayer is cotton or PU foaming board is used for preventing to treat that the low frequency noise reveals in the syllable-dividing object, and outer EPDM sound insulating pad of high grammes per square metre is used for preventing to treat that the syllable-dividing object high frequency noise reveals to prevent that the noise of low frequency, intermediate frequency and high frequency section from revealing, effectively promoted the sound insulation performance, improved passenger's the experience of using the car.
Drawings
Fig. 1 is a schematic structural diagram of a sound insulation device applied to a motor according to an embodiment of the present invention;
fig. 2 is a schematic structural view of a sound-proofing device applied to a compressor according to an embodiment of the present invention;
FIG. 3 is a schematic view of an acoustic baffle device in accordance with one embodiment of the present invention;
reference numerals are as follows:
wherein, 1, the inner shell of sound insulation; 2. a sound-insulating outer housing; 3. and a seal member.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without making creative efforts belong to the protection scope of the present invention.
In the description of the present application, the terms "first", "second", "third", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, features defined as "first," "second," "third," etc. may explicitly or implicitly include one or more of the features. In the description of the present application, "a plurality" means two or more unless otherwise specified.
In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. As used herein, the terms "vertical," "horizontal," "left," "right," "up," "down," and similar expressions are used for the purpose of illustration only and do not indicate or imply that the apparatus or components referred to must be oriented, constructed and operated in a particular orientation and therefore should not be construed as limiting the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items. The specific meaning of the above terms in this application will be understood to be a specific case for those of ordinary skill in the art.
In the description of the present application, it should be noted that, 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. The terminology used in the description of the present invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the present invention, and the specific meanings of the terms in the present application will be understood to those skilled in the art in a specific context.
An embodiment of the utility model provides a noise insulation, preferably use in electric automobile, the application object is the various noise sources in the electric automobile, for example motor and compressor, and is specific, please refer to fig. 1-3, fig. 1 shows does the utility model discloses the structural schematic diagram of being applied to the noise insulation of motor in one of them embodiment, fig. 2 shows does the utility model discloses the structural schematic diagram of being applied to the noise insulation of compressor in one of them embodiment, fig. 3 shows does the utility model discloses the principle schematic diagram of the noise insulation in one of them embodiment can know by fig. 3, through two cladding formula sound insulation half casing carries out the separation to the noise propagation path of inside sound source, and effective restriction noise escape is regional to the syllable-dividing effect has been improved.
With reference to fig. 1 and 2, the acoustic insulation means comprise two of said enveloping sound-insulating half-shells, which are mutually matched for enveloping the object to be sound-insulated by combining them to form a complete shell.
It should be noted that the product structure of the sound-insulating half shell needs to be adapted according to the product structure of the object to be sound-insulated, for example, it needs to be ensured that the combined complete shell can cover the object to be sound-insulated, and therefore, the inner contour of the two half shells needs to match the outer contour of the motor or the compressor, which is not described herein again. In a similar way, the shape of the cladding type sound-insulating half shell also needs to be designed according to actual accompanying requirements, preferably, the cladding type sound-insulating half shell is a box body with an opening at the bottom, and the opening outer edge of the box body is provided with clamping parts matched with each other. In addition, a structure such as a cylinder may be selected, and will not be described in detail herein.
Furthermore, two in the embodiment of the utility model provides a cladding formula sound insulation half casing is for cooperating from top to bottom, of course, also can be according to actual need, select for controlling two of complex cladding formula sound insulation half casing is no longer repeated here.
Each coated sound insulation half shell comprises a sound insulation inner shell 1 and a sound insulation outer shell 2, and the sound insulation outer shell 2 is tightly sleeved outside the sound insulation inner shell 1; the sound insulation inner shell 1 is porous sound absorption cotton or a PU foaming plate for preventing low-frequency noise in an object to be sound-insulated from leaking; the soundproof case body 2 is an EPDM soundproof pad for preventing leakage of high-frequency noise of an object to be soundproof.
Preferably, PU foaming integrated into one piece EPDM sound insulating pad is gone up, inhales the cotton inner core of sound and welds on EPDM sound insulating pad through the hot riveting, and the part shaping is uncomplicated, and the mounting means is simple.
Further, in the above embodiment, the sound-proofing device further includes a plurality of sealing members 3, and the sealing members 3 are disposed at the combined joint between the two coated sound-proofing half shells (i.e. the sound-proofing inner shell 1 and the sound-proofing outer shell 2). Preferably, the sealing element 3 is a magic tape, and a sound insulation sealing gasket can be selected.
For the motor in the car, adopt the cladding formula sound insulation semi-shell body (being above-mentioned sound insulation inner shell 1 and sound insulation outer shell body 2) that two halves part amalgamated about the adoption, combine the magic to glue fixedly, constitute the motor sound insulation system that the coverage reaches 80%, the sound insulation package coverage of sound source is high, the better propagation path who has reduced the noise.
For the compressor in the car, adopt the cladding formula sound insulation half casing that upper and lower two halves part amalgamated, combine the magic to glue fixedly, constitute the air condition compressor sound insulation system that the coverage reaches 80%, the sound insulation package coverage of sound source is high, the better propagation path who has reduced the noise.
As can be appreciated, the face of the EPDM acoustic insulator matDensity can affect the final sound insulation effect. In an alternative embodiment, the EPDM acoustic insulating mat in this embodiment preferably has an areal density of 3400g/m in order to secure the acoustic insulating effect of the acoustic insulating device 2 . Of course, the areal density of the EPDM sound insulation pad can be set according to actual use requirements, and will not be further described herein.
Similarly, the areal density of the porous sound-absorbing cotton can affect the final sound-insulating effect. In an alternative embodiment, in order to ensure the sound-insulating effect of the sound-insulating device, the surface density of the porous sound-absorbing cotton in this embodiment is preferably 600g/m 2 . Of course, the surface density of the porous sound-absorbing cotton can be set according to the actual use requirement, and further description is omitted here.
It will be appreciated that the thickness of the EPDM acoustic mat can also affect the final acoustic effectiveness. In an alternative embodiment, the EPDM acoustic mat in this embodiment has a thickness of 2-3mm, such as 2mm or 3mm, in order to ensure the acoustic effect of the acoustic barrier. Of course, the thickness of the EPDM sound insulation pad needs to be set according to the actual use requirement, and is not further described herein.
Likewise, the thickness of the porous sound-absorbing cotton can also affect the final sound-insulating effect. In an alternative embodiment, in order to ensure the sound insulation effect of the sound insulation device, the thickness of the porous sound-absorbing cotton in the present embodiment is 20mm. Certainly, the thickness of porous sound absorption cotton needs to set up according to the in-service use requirement, does not do more and describe here.
For the in-vehicle motor, the material composition of the sound insulation device is 3400g/m 2 EPDM Sound insulating pad and 600g/m 2 Porous sound absorbing cotton. The EPDM outer shell with high gram weight is used for blocking high-frequency noise of the motor, and the porous sound-absorbing cotton with low gram weight is used for absorbing medium and low frequency noise to process motor noise.
For an in-vehicle compressor, the sound-insulating device has a material composition of 3400g/m 2 An outer shell of EPDM and a PU foam having a thickness of 20mm. The EPDM outer shell with high gram weight is responsible for blocking high-frequency noise of the compressor, the PU foam with low gram weight is responsible for absorbing middle and low frequency noise to process noise of the compressor, and the compressor noise is effectively processedAnd the sound insulation performance is improved.
Another embodiment of the present invention provides an electric vehicle, wherein the electric vehicle includes the sound insulation device as described above.
The embodiment of the utility model provides a sound insulation system and electric automobile, beneficial effect lies in:
(1) The combined coated sound-insulation semi-shells are matched with each other to form a complete shell, the structure is simple, the object to be sound-insulated can be completely coated, the coverage rate can reach 80%, and the propagation path of the object to be sound-insulated is effectively blocked;
(2) Divide into inside and outside two-layer with noise insulation, the porous sound cotton or the PU foaming board of inhaling of the low grammes per square metre of inlayer is used for preventing to treat that the low frequency noise of syllable-dividing object reveals, and outer EPDM sound insulating pad of high grammes per square metre is used for preventing to treat that the sound-dividing object high frequency noise reveals to prevent that the noise of low frequency, intermediate frequency and high frequency section from revealing, effectively promoted the sound insulation performance, improved passenger's the experience of using the car.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (10)
1. A sound-insulating device is characterized by comprising two coated sound-insulating half shells;
the two coated sound insulation semi-shells are matched with each other and used for forming a complete shell through combination to coat an object to be sound insulated;
each coated sound insulation semi-shell comprises a sound insulation inner shell and a sound insulation outer shell, and the sound insulation outer shell is tightly sleeved outside the sound insulation inner shell; the sound insulation inner shell is porous sound absorption cotton or a PU foaming plate for preventing low-frequency noise in an object to be sound insulated from leaking; the EPDM that the shell body that gives sound insulation was revealed for preventing the object high frequency noise that treats gives sound insulation fills up.
2. A sound-proofing device as defined in claim 1, further comprising a plurality of sealing members disposed at the combined junction between two of said containment half-shells.
3. An acoustic insulator device as set forth in claim 2 wherein said seal is a velcro strip.
4. An acoustic baffle device according to claim 2 wherein the sealing member is an acoustic gasket.
5. The sound insulating device as claimed in claim 1, wherein said coated sound insulating semi-shell is an open-bottomed box, and mating engaging portions are provided at outer edges of said openings of said two boxes.
6. An acoustic insulator as set forth in claim 1 wherein said EPDM acoustic mat has an areal density of 3400g/m 2 。
7. An acoustic insulator as set forth in claim 1 wherein said porous acoustic wool has an areal density of 600g/m 2 。
8. An acoustic insulator as set forth in claim 1 wherein said EPDM acoustic mat has a thickness of from 2 to 3mm.
9. An acoustic insulating device according to claim 1, wherein the PU foam sheet and the porous acoustic wool have a thickness of 20mm.
10. An electric vehicle characterized by comprising the sound insulating device according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222532457.XU CN218447217U (en) | 2022-09-23 | 2022-09-23 | Sound insulation device and electric automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222532457.XU CN218447217U (en) | 2022-09-23 | 2022-09-23 | Sound insulation device and electric automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218447217U true CN218447217U (en) | 2023-02-03 |
Family
ID=85082642
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222532457.XU Active CN218447217U (en) | 2022-09-23 | 2022-09-23 | Sound insulation device and electric automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218447217U (en) |
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- 2022-09-23 CN CN202222532457.XU patent/CN218447217U/en active Active
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| GR01 | Patent grant | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20240222 Granted publication date: 20230203 |
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