CN205131140U - Vehicle subassembly of making an uproar, power assembly that has it and electric vehicle fall - Google Patents
Vehicle subassembly of making an uproar, power assembly that has it and electric vehicle fall Download PDFInfo
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- CN205131140U CN205131140U CN201520859096.7U CN201520859096U CN205131140U CN 205131140 U CN205131140 U CN 205131140U CN 201520859096 U CN201520859096 U CN 201520859096U CN 205131140 U CN205131140 U CN 205131140U
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- noise reduction
- dynamical element
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- reduction components
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Abstract
The utility model discloses a vehicle the subassembly of making an uproar falls, it is applicable to to fall the subassembly of making an uproar the power components of vehicle, it includes to fall the subassembly of making an uproar: the rigidity piece, the rigidity piece with power components fixed connection, the rigidity piece is located the outer just cladding of power components is in on power components's the at least partial outer wall, and inhale sound spare, it is located to inhale sound spare power components's outer wall with between the inner wall of rigidity piece. According to the utility model discloses the vehicle the subassembly of making an uproar falls, the noise reduction effect is better, has improved the riding comfort of vehicle.
Description
Technical field
The utility model relates to technical field of vehicle, in particular to a kind of noise reduction components of vehicle, the dynamic assembly with it and elec. vehicle.
Background technology
In correlation technique, the frequency noise of the motor in elec. vehicle and retarder radiation is mainly 300-2000Hz.Although this frequency noise is less than engine noise frequency, because people's ear is very responsive to the noise of frequency within the scope of 1000Hz-2000Hz, have a strong impact on traveling comfort by bus, be therefore badly in need of improving this.
Utility model content
The utility model is intended to solve one of technical matters in correlation technique at least to a certain extent.For this reason, the utility model proposes a kind of noise reduction components being conducive to the vehicle reducing noise.
The utility model also proposed a kind of dynamic assembly and the elec. vehicle with this noise reduction components.
According to the noise reduction components of the vehicle of the utility model first aspect embodiment, described noise reduction components is applicable to the dynamical element of described vehicle, described noise reduction components comprises: rigid pipe, described rigid pipe is fixedly connected with described dynamical element, and it is outer and be coated at least part of outer wall of described dynamical element that described rigid pipe is positioned at described dynamical element; And sound-absorbing part, described sound-absorbing part is between the outer wall and the inwall of described rigid pipe of described dynamical element.
According to the noise reduction components of the vehicle of the utility model embodiment, noise reduction is better, improves the travelling comfort of vehicle.
According to embodiments more of the present utility model, described sound-absorbing part comprises: integument, limits closed packing space in described integument; And being positioned at the sound absorbing layer of described packing space, described sound absorbing layer is bicomponent fibers structure.
According to embodiments more of the present utility model, described bicomponent fibers structure is synthesized by poly-ester fibres and mekralon, and the density of described sound absorbing layer is 15kg/m3-16kg/m3.
According to embodiments more of the present utility model, the thickness of described sound absorbing layer is 30mm-45mm.
According to embodiments more of the present utility model, the coefficient of sound-absorption of described sound absorbing layer to 1000Hz-2000Hz noise is greater than 0.9.
According to embodiments more of the present utility model, described rigid pipe is 80%-100% to the coverage rate of the outer wall of described dynamical element.
According to embodiments more of the present utility model, described rigid pipe comprises: the first sidepiece and the second sidepiece, and described first sidepiece and described second lateral ring to be arranged and both are bolted around the sidewall of described dynamical element; Bottom, described bottom is corresponding with the diapire of described dynamical element and be bolted with at least one in described first sidepiece and described second sidepiece; And top, described top is corresponding with the roof of described dynamical element and be bolted with at least one in described first sidepiece and described second sidepiece.
Dynamic assembly according to the utility model second aspect embodiment comprises: dynamic assembly body, and described dynamic assembly body comprises motor and retarder; And the noise reduction components of described vehicle, described dynamic assembly body is formed as described dynamical element, and described rigid pipe is centered around the integral outer that described motor and described retarder are formed.
According to the elec. vehicle of the utility model third aspect embodiment, comprise described dynamic assembly.
Accompanying drawing explanation
Fig. 1 is the partial schematic sectional view coordinated with dynamical element according to the noise reduction components of embodiment of the present utility model.
Fig. 2 is the sound-absorbing effect contrast table of sound absorbing layer according to the noise reduction components in a specific embodiment of the present utility model and existing PU expanded material.
Fig. 3 is not arranging noise reduction components and the noise testing comparison diagram arranged in noise reduction components two kinds of situations according to the vehicle of the utility model embodiment.
Reference numeral:
Noise reduction components 100, dynamical element 200,
Rigid pipe 10,
Sound-absorbing part 20, integument 21, sound absorbing layer 22.
Detailed description of the invention
Be described below in detail embodiment of the present utility model, the example of described embodiment is shown in the drawings.Be exemplary below by the embodiment be described with reference to the drawings, be intended to for explaining the utility model, and can not be interpreted as restriction of the present utility model.
The noise reduction components 100 according to the vehicle of the utility model embodiment is described in detail referring to Fig. 1 to Fig. 3.
As shown in Figure 1, according to the noise reduction components 100 of the vehicle of the utility model first aspect embodiment, noise reduction components 100 is applicable to the dynamical element 200 of vehicle, and noise reduction components 100 comprises: rigid pipe 10 and sound-absorbing part 20.
Rigid pipe 10 is fixedly connected with dynamical element 200, and it is outer and be coated at least part of outer wall of dynamical element 200 that rigid pipe 10 is positioned at dynamical element 200, and sound-absorbing part 20 is between the outer wall and the inwall of rigid pipe 10 of dynamical element 200.
According to the noise reduction components 100 of the vehicle of the utility model embodiment, by rigid pipe 10 coated at least part of outer wall of dynamical element 200 and sound-absorbing part 20, the outer wall that sound-absorbing part 20 is arranged on dynamical element 200 effectively adsorbs with the noise sent dynamical element 200 outward, rigid pipe 10 is located at outside sound-absorbing part 20 and not only plays positioning action to sound-absorbing part 20 simultaneously, and there is deadening, can noise leakage be reduced.
In certain embodiments, sound-absorbing part 20 comprises: integument 21 and sound absorbing layer 22.Limit closed packing space in integument 21, sound absorbing layer 22 is positioned at packing space, and sound absorbing layer 22 is bicomponent fibers structure.Particularly, integument 21 adopts nonwoven cloth material, and sound absorbing layer 22 is made up of bicomponent fibers structure, and bicomponent fibers structure has good compressibility, and sound absorbing layer 22 is positioned at the packing space that nonwoven fabrics limits, and sound absorbing layer 22 fills up packing space.
Thus, integument 21 is adopted to wrap up compressible sound absorbing layer 22, decrease the destruction of dynamic assembly vibration to sound absorbing layer 22, enhance the homogeneity that sound absorbing layer 22 distributes, and sound absorbing layer 22 adopts bicomponent fibers structure, not only sound-absorbing effect is good, lightweight, and greatly reduces the interference of itself and peripheral parts, is convenient to install.
According to a specific embodiment of the present utility model, bicomponent fibers structure is formed by poly-ester fibres and poly-third fibrous polymer, and the density of sound absorbing layer 22 is 15kg/m3-16kg/m3.With reference to shown in Fig. 2, Fig. 2 shows sound absorbing layer 22 coefficient of sound-absorption at respective frequencies in this embodiment and the coefficient of sound-absorption of existing sound absorption materials.It can thus be appreciated that, adopt sound absorbing layer 22 noise reduction of this embodiment remarkable, especially to the coefficient of sound-absorption of the noise of frequency within the scope of 1000-2000Hz all more than 0.9, noise reduction is better.
Advantageously, the thickness of sound absorbing layer 22 is 30mm-45mm.Further preferably, the thickness of sound absorbing layer 22 can be 42mm, and sound absorbing layer 22 can be compressed to 5mm.Thus, while guarantee absorbing sound and lowering noise effect, taking dynamical element 200 space outerpace is decreased.
According to embodiments more of the present utility model, the coefficient of sound-absorption of sound absorbing layer 22 pairs of 1000Hz-2000Hz noises is greater than 0.9.Thus, the assimilation effect of the noise that this sound absorbing layer 22 pairs of people's ears are comparatively responsive is better, greatly strengthen the traveling comfort that passenger rides.
Alternatively, the coverage rate of the outer wall of rigid pipe 10 pairs of dynamical elements 200 is 80%-100%.Particularly, sound-absorbing part 20 is arranged between the inwall of rigid pipe 10 and the outer wall of dynamical element 200, and sound-absorbing part 20 is corresponding with rigid pipe 10 and shape is consistent.The shape of the outer wall of the dynamical element 200 that the shape of sound-absorbing part 20, rigid pipe 10 is adaptive with this noise reduction components 100 is consistent.
According to a specific embodiment of the present utility model, rigid pipe 10 comprises: the first sidepiece, the second sidepiece, bottom and top.First sidepiece and the second lateral ring to be arranged and both are bolted around the sidewall of dynamical element 200, bottom is corresponding with the diapire of dynamical element 200 and be bolted with at least one in the first sidepiece and the second sidepiece, and top is corresponding with the roof of dynamical element 200 and be bolted with at least one in the first sidepiece and the second sidepiece.
Like this, bolt is connected on dynamical element 200 through rigid pipe 10, sound-absorbing part 20, thus achieves the compact siro spinning technology of sound-absorbing part 20 and rigid pipe 10 and dynamical element 200.
It will be understood by those skilled in the art that rigid pipe 10 can be insulation board and panel, this insulation board and panel can be any one in steel plate, copper coin, aluminium alloy plate, and above-mentioned rigid pipe 10 can be integrally formed by punching press.The thickness of insulation board and panel can be 2mm, can by welding or glueing joint connection between two parts adjacent in the first sidepiece, the second sidepiece, bottom and top.
Dynamic assembly according to the utility model second aspect embodiment comprises: the noise reduction components 100 of the vehicle of dynamic assembly body and above-described embodiment.Wherein, dynamic assembly body comprises motor and retarder; Dynamic assembly body is formed as dynamical element 200, and rigid pipe 10 is centered around the integral outer that motor and retarder are formed.Thus, the noise of the dynamic assembly of the utility model second aspect embodiment is less.
Fig. 3 is not arranging noise reduction components 100 and the noise testing comparison diagram arranged in noise reduction components 100 two kinds of situations according to the vehicle of the utility model embodiment.
Wherein, the abscissa in Fig. 3 is the rotating speed of motor in dynamic assembly, and ordinate is the sound pressure level of the chaufeur A weighted in one's ear detected.In Fig. 3, dark strokes is the detection curve arranging noise assembly, and light lines are the detection curve not arranging noise assembly.Known with reference to Fig. 3, the rotating speed of motor is when below 3500rpm, and noise reduction is comparatively obvious, and rotating speed noise reduction when 1000-2500rpm of motor is particularly remarkable.
According to the elec. vehicle of the utility model third aspect embodiment, comprise the dynamic assembly of above-described embodiment.Less according to the noise of the elec. vehicle of the utility model third aspect embodiment, car load NVH performance is better.
In description of the present utility model, it will be appreciated that, term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ", " thickness ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior ", " outward ", " cw ", " conter clockwise ", " axis ", " radial direction ", orientation or the position relationship of the instruction such as " circumference " are based on orientation shown in the drawings or position relationship, only the utility model and simplified characterization for convenience of description, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as restriction of the present utility model.
In addition, term " first ", " second " only for describing object, and can not be interpreted as instruction or hint relative importance or imply the quantity indicating indicated technical characteristic.Thus, be limited with " first ", the feature of " second " can express or impliedly comprise at least one this feature.In description of the present utility model, the implication of " multiple " is at least two, such as two, three etc., unless otherwise expressly limited specifically.
In the utility model, unless otherwise clearly defined and limited, the term such as term " installation ", " being connected ", " connection ", " fixing " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or integral; Can be mechanical connection, also can be electrical connection or each other can communication; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals or the interaction relationship of two elements, unless otherwise clear and definite restriction.For the ordinary skill in the art, the concrete meaning of above-mentioned term in the utility model can be understood as the case may be.
In the utility model, unless otherwise clearly defined and limited, fisrt feature second feature " on " or D score can be that the first and second features directly contact, or the first and second features are by intermediary indirect contact.And, fisrt feature second feature " on ", " top " and " above " but fisrt feature directly over second feature or oblique upper, or only represent that fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " below " and " below " can be fisrt feature immediately below second feature or tiltedly below, or only represent that fisrt feature level height is less than second feature.
In the description of this specification sheets, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present utility model or example.In this manual, to the schematic representation of above-mentioned term not must for be identical embodiment or example.And the specific features of description, structure, material or feature can combine in one or more embodiment in office or example in an appropriate manner.In addition, when not conflicting, the feature of the different embodiment described in this specification sheets or example and different embodiment or example can carry out combining and combining by those skilled in the art.
Although illustrate and described embodiment of the present utility model above, be understandable that, above-described embodiment is exemplary, can not be interpreted as restriction of the present utility model, those of ordinary skill in the art can change above-described embodiment, revises, replace and modification in scope of the present utility model.
Claims (9)
1. a noise reduction components for vehicle, is characterized in that, described noise reduction components is applicable to the dynamical element of described vehicle, and described noise reduction components comprises:
Rigid pipe, described rigid pipe is fixedly connected with described dynamical element, and it is outer and be coated at least part of outer wall of described dynamical element that described rigid pipe is positioned at described dynamical element; And
Sound-absorbing part, described sound-absorbing part is between the outer wall and the inwall of described rigid pipe of described dynamical element.
2. the noise reduction components of vehicle according to claim 1, is characterized in that, described sound-absorbing part comprises:
Integument, limits closed packing space in described integument; And
Be positioned at the sound absorbing layer of described packing space, described sound absorbing layer is bicomponent fibers structure.
3. the noise reduction components of vehicle according to claim 2, is characterized in that, described bicomponent fibers structure is synthesized by poly-ester fibres and mekralon, and the density of described sound absorbing layer is 15kg/m3-16kg/m3.
4. the noise reduction components of vehicle according to claim 2, is characterized in that, the thickness of described sound absorbing layer is 30mm-45mm.
5. the noise reduction components of vehicle according to claim 2, is characterized in that, the coefficient of sound-absorption of described sound absorbing layer to 1000Hz-2000Hz noise is greater than 0.9.
6. the noise reduction components of vehicle according to claim 1, is characterized in that, described rigid pipe is 80%-100% to the coverage rate of the outer wall of described dynamical element.
7. the noise reduction components of the vehicle according to any one of claim 1-6, is characterized in that, described rigid pipe comprises:
First sidepiece and the second sidepiece, described first sidepiece and described second lateral ring to be arranged and both are bolted around the sidewall of described dynamical element;
Bottom, described bottom is corresponding with the diapire of described dynamical element and be bolted with at least one in described first sidepiece and described second sidepiece; And
Top, described top is corresponding with the roof of described dynamical element and be bolted with at least one in described first sidepiece and described second sidepiece.
8. a dynamic assembly, is characterized in that, comprising:
Dynamic assembly body, described dynamic assembly body comprises motor and retarder; And
The noise reduction components of the vehicle according to any one of claim 1-7, described dynamic assembly body is formed as described dynamical element, and described rigid pipe is centered around the integral outer that described motor and described retarder are formed.
9. an elec. vehicle, is characterized in that, comprises dynamic assembly as claimed in claim 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520859096.7U CN205131140U (en) | 2015-10-30 | 2015-10-30 | Vehicle subassembly of making an uproar, power assembly that has it and electric vehicle fall |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520859096.7U CN205131140U (en) | 2015-10-30 | 2015-10-30 | Vehicle subassembly of making an uproar, power assembly that has it and electric vehicle fall |
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| Publication Number | Publication Date |
|---|---|
| CN205131140U true CN205131140U (en) | 2016-04-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520859096.7U Expired - Fee Related CN205131140U (en) | 2015-10-30 | 2015-10-30 | Vehicle subassembly of making an uproar, power assembly that has it and electric vehicle fall |
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| Country | Link |
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| CN (1) | CN205131140U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105172709A (en) * | 2015-10-30 | 2015-12-23 | 北京新能源汽车股份有限公司 | Vehicular noise reduction assembly, power assembly with the vehicular noise reduction assembly, and electric vehicle with the power assembly |
-
2015
- 2015-10-30 CN CN201520859096.7U patent/CN205131140U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105172709A (en) * | 2015-10-30 | 2015-12-23 | 北京新能源汽车股份有限公司 | Vehicular noise reduction assembly, power assembly with the vehicular noise reduction assembly, and electric vehicle with the power assembly |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160406 Termination date: 20211030 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |