CN204458248U - Support vibration-damped component, compressor assembly - Google Patents
Support vibration-damped component, compressor assembly Download PDFInfo
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- CN204458248U CN204458248U CN201420779485.4U CN201420779485U CN204458248U CN 204458248 U CN204458248 U CN 204458248U CN 201420779485 U CN201420779485 U CN 201420779485U CN 204458248 U CN204458248 U CN 204458248U
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Abstract
The utility model provides a kind of and supports vibration-damped component, compressor assembly, belongs to antivibration area, its can solve existing support vibration-damped component can not reduce compressor itself vibration and in the bad problem of component frequency vibration isolating effect.Support vibration-damped component of the present utility model is for being supported on substrate by workpiece, and described support vibration-damped component is made up of damping material.Compressor assembly of the present utility model comprises compressor, substrate, multiple above-mentioned support vibration-damped component; Described compressor supports on the substrate by described support vibration-damped component.
Description
Technical field
The utility model belongs to antivibration area, is specifically related to a kind of support vibration-damped component, compressor assembly.
Background technique
In the chiller plant such as air-conditioning, refrigerator, compressor is most important parts, and it is for compressing cold media air.For realizing the compression to cold media air, the compression structure of the cyclical movement such as rotor, piston in compressor, must be comprised.The frequency of okperation of these compression structures is usually between 10 ~ 100Hz, and their athletic meeting makes compressor produce vibration.If this conduct vibrations is on other parts of chiller plant, then can produces noise and affect working life of other parts.Especially rotary compressor (be namely the compressor of compression structure with rotor), its usual volume is comparatively large, and vibration acceleration is also higher, vibrates the problem caused also more serious.
For this reason, as shown in Figure 1 to Figure 3, need by multiple support vibration-damped component 1 (also claiming damping pad, foot pad), compressor 3 to be supported in substrate 5 (as hanging outdoor unit of air conditioner base plate), in order to avoid compressor 3 directly contacts substrate 5 and causes substrate 5 to vibrate.Wherein, supporting vibration-damped component 1 is hollow column, wears bolt 7 in the cavity 13 of its inside, thus support vibration-damped component 1 can be fixed on substrate 5.Support the installation groove 11 that then there is annular vibration-damped component 1 upper end, multiple support plate of with holes 311 31 is had bottom compressor 3, these support plates 31 are being installed in groove 11 by hole 311 " cutting ferrule ", thus compressor 3 is connected to support vibration-damped component 1 upper end, namely by supporting vibration-damped component 1, compressor 3 is supported on substrate 5.Support vibration-damped component 1 by traditional rubber (as natural rubber, ethylene propylene diene rubber, silicone rubber, nitrile butadiene rubber etc.) form, because rubber is elastomer, therefore the conduct vibrations of compressor 3 itself can be stoped in substrate 5, thus play vibration damping (being more specifically " vibration isolation ") effect.Certainly, also can comprise other conventional components such as electrode, outlet pipe, suction tude, filter in compressor 3, describe no longer one by one at this.Meanwhile, supporting the upper end of vibration-damped component 1 can have chamfering so that the better demoulding coordinating with bolt 7 top, but this not affect it be " column " form on the whole.
But inventor finds that in prior art, at least there are the following problems:
First, though existing support vibration-damped component can stop conduct vibrations to (i.e. " vibration isolation ") in substrate, the vibration of compressor itself can not be stoped.And the vibration of compressor itself also can produce noise (in fact it is the main source of current chiller plant noise).And the vibration of compressor itself also can cause wearing and tearing etc. to its structure, reduces its working life.Especially, for the joint of each pipeline (as the pipeline by refrigerant input and output compressor) connected on the compressor, the vibration of compressor itself may cause it to damage, leak.
Secondly, in frequency-changeable compressor, its frequency of okperation can change as required.And existing support vibration-damped component vibration isolating effect when some work frequency is better, but vibration isolating effect under other frequency of okperation (especially lower frequency of okperation) is very poor.Even, when frequency of okperation is close with the eigentone (usually at 10 ~ 20Hz) supporting vibration-damped component itself, support vibration-damped component also to resonate with compressor, lose vibration isolating effect completely, thus cause serious noise, pipeline solder joint breaks.
Model utility content
Technical problem to be solved in the utility model comprises, and can not reduce the vibration of compressor itself and in the bad problem of component frequency vibration isolating effect, provide a kind of and support vibration-damped component, compressor assembly for existing support vibration-damped component.
The technological scheme that solution the utility model technical problem adopts is a kind of support vibration-damped component, and it is for being supported on substrate by workpiece (as compressor), and this support vibration-damped component is made up of damping material.
Preferably, described damping material is damping rubber.
Preferably, the outer surface of described support vibration-damped component is provided with at least one vibration damping groove distributed along its circumference.
The technological scheme that solution the utility model technical problem adopts is a kind of compressor assembly, and it comprises compressor, substrate, multiple above-mentioned support vibration-damped component; Described compressor supports on the substrate by described support vibration-damped component.
Support vibration-damped component of the present utility model is made up of damping material (as damping rubber), and the most of vibrational energy be transmitted on it can dissipate with form of thermal energy by it, and has elastic performance, therefore vibration isolating effect is at each frequency all better.Meanwhile, the dynamic rate of damping material is very large, therefore when vibration of compressor, damping material by compressor " retracting " original position in time, can reduce its motion amplitude, namely reduce the vibration of compressor itself.
Accompanying drawing explanation
Fig. 1 is the Split type structure schematic diagram of existing compressor assembly;
Fig. 2 is the composite structure schematic diagram of existing compressor assembly;
Fig. 3 is existing support vibration-damped component cross-sectional view in use;
Fig. 4 is the cross-sectional view of the support vibration-damped component of embodiment 1 of the present utility model;
Fig. 5 is the support vibration-damped component cross-sectional view in use of embodiment 1 of the present utility model;
Fig. 6 is the composite structure schematic diagram of the compressor assembly of embodiment 1 of the present utility model;
The damping capacity figure of the damping rubber that the support vibration-damped component that Fig. 7 is embodiment 1 of the present utility model adopts;
Fig. 8 is the comparison diagram of the compressor mean acceleration in the compressor assembly of prior art and embodiment of the present utility model 1.
Wherein, reference character is: 1, support vibration-damped component; 11, groove is installed; 13, cavity; 15, vibration damping portion; 151, outer vibration damping groove; 153, interior vibration damping groove; 17, supporting portion; 3, compressor; 31, support plate; 311, hole; 5, substrate; 7, bolt.
Embodiment
For making those skilled in the art understand the technical solution of the utility model better, below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Embodiment 1:
As shown in Fig. 4 to Fig. 8, the present embodiment provides a kind of and supports vibration-damped component 1, and it is for supporting workpiece on substrate 5.
Concrete, this support vibration-damped component 1 can be used for supports compressor 3 (namely workpiece can be compressor 3).Wherein, compressor is generally used in the chiller plant such as air-conditioning, refrigerator, thus supports " damping pad " or " foot pad " of vibration-damped component 1 namely compressor 3.
Certainly, can vibrative workpiece if be used for the support vibration-damped component 1 of the present embodiment supporting other, be also feasible.
Be different from existing support vibration-damped component 1, the support vibration-damped component 1 of the present embodiment is made up of known damping material, is more preferably made up of known damping rubber.
Wherein, damping material refers to and vibrational energy (mechanical energy) can be changed into heat energy and the material dissipated.And damping rubber refers to the rubber material with damping capacity, its relative movement mainly through macromolecular chain segment changes vibrational energy into heat energy.Concrete, damping rubber can be the commercially available damping rubber of the models such as VC308, VC310 of 3M company.
Certainly, the damping material that can be used for the support vibration-damped component 1 of the present embodiment is not limited to this, as long as the damping capacity of this damping material reaches requirement.Concrete, the damping factor of available damping material at the temperature of-20 DEG C to 30 DEG C (damping factor) is preferably greater than or equal to 0.9, more preferably between 1.2 to 2.0.Wherein, damping factor also claims " damping loss factor ", and it equals the loss modulus of material and the ratio of storage modulus, can embody the damping capacity of material, and larger expression damping capacity is better.Find after deliberation, at typical service temperatures (-20 DEG C to 30 DEG C), the damping factor of damping material at least will reach 0.9 and just can obtain good effect.
Preferably, the Shore A hardness of damping material is between 30 degree to 60 degree.
Obviously, support vibration-damped component 1 and want supports compressor 3, therefore it can not be too soft, certain hardness (rigidity) must be had, meanwhile, if its hardness is too large, then show that its rigidity is higher, and the high material of rigidity can vibrate with compressor 3, can not reach effective vibration isolating effect, therefore its hardness can not be too high.Find after deliberation, above hardness range is proper.
Visible, when selecting to form the damping material supporting vibration-damped component 1, meeting the known materials of above requirement according to the performance such as damping factor, hardness, then can obtain better effect.Therefore should be appreciated that above performance requirement is not the restriction to new material, but preferred employing of restriction meets necessarily required known materials.
The support vibration-damped component 1 of the present embodiment is made up of damping material, due to damping function, therefore support vibration-damped component 1 and the overwhelming majority can be transmitted to the vibrational energy on it and dissipate with the form of heat energy, and there is elastic performance, and avoid vibrational energy to be delivered in substrate 5, therefore its vibration isolating effect is at each frequency all better.Simultaneously, the dynamic rate (i.e. the ability of resistance to deformation in a dynamic state) of damping material is far above General Purpose Rubber, when compressor 3 is out of shape because driving support vibration-damped component 1 when vibration produces displacement, and now support vibration-damped component 1 and can produce very large reaction force by compressor 3 " retracting " original position, thus reduce the displacement of compressor 3, namely reduce the vibration of compressor 3 itself.Therefore, the support vibration-damped component 1 be made up of damping material not only all can play good vibration isolation effect at each frequency, meanwhile, also can effectively reduce the vibration of compressor 3 itself.
Below the concrete structure supporting vibration-damped component 1 is introduced.
As shown in Figures 4 to 6, support vibration-damped component 1 and be preferably column, and upper end is for connecting workpiece, lower end is used for establishing on substrate 5.
That is, support the form that vibration-damped component 1 is preferably " cylinder " on the whole, this cylinder lower end is established on substrate 5, and upper end is then connected with the workpiece that will support (as compressor 3), thus plays a supporting role.Concrete, to the support vibration-damped component 1 for supports compressor 3, its upper end can be provided with the installation groove 11 of annular.Accordingly, be provided with the support plate 31 of with holes 311 bottom compressor 3, support plate 31 is being installed in groove 11 by hole 311 " cutting ferrule ", thus is connected to by compressor 3 on support vibration-damped component 1.
Preferred, it is cylindric for supporting vibration-damped component 1, thus its side surface does not have corner angle, can not produce stress and concentrate, the damping property in all directions evenly.
Preferably, the cavity 13 for wearing bolt 7 be provided with along its axial distribution is supported in vibration-damped component 1.
That is, supporting vibration-damped component 1 can be " hollow ", to make bolt 7 be located in wherein, thus is fixed on substrate 5.
Certainly, above-described installation groove 11, cavity 13, bolt 7 etc. also can be other form for the structure being fixed, connecting, as long as it can make support vibration-damped component 1 play the effect of supports compressor 3: such as, the bottom surface of compressor 3 can there is mounting hole, and support vibration-damped component 1 upper end and can directly insert in this mounting hole; For another example, support vibration-damped component 1 and can be solid, and it is first-class to be fixed on substrate 5 by the mode of bonding.
Preferably, the outer surface supporting vibration-damped component 1 is provided with at least one vibration damping groove distributed along its circumference.
As shown in Figure 4, Figure 5, when arranging groove (hereinafter referred to as " outer vibration damping groove 151 ") on support vibration-damped component 1 outer surface, the rigidity supporting vibration-damped component 1 can be reduced, thus improve this its anti-vibration performance further.Wherein, this outer vibration damping groove 151 is preferably multiple to improve effect, as being 2 or 3.
Simultaneously, preferably, to the support vibration-damped component 1 with above-mentioned cavity 13, its internal surface preferably also can be provided with at least one vibration damping groove (hereinafter referred to as " interior vibration damping groove 153 ") distributed along its circumference, and this interior vibration damping groove 153 is located at the position corresponding with outer vibration damping groove 151.
That is, also vibration damping groove can be provided with on cavity 13 surface of hollow support vibration-damped component 1, the position of this interior vibration damping groove 153 and the position of outer vibration damping groove 151 be (namely the two is identical at the axially height and position supporting vibration-damped component 1, and is also in same section in the circumferential) relatively.This interior vibration damping groove 153 can match with outer vibration damping groove 151, thus improves anti-vibration performance further.
Certainly, as shown in Figure 4, Figure 5, as most preferred scheme, interior vibration damping groove 153 should be " one_to_one corresponding " with outer vibration damping groove 151, namely has corresponding interior vibration damping groove 153 inside each outer vibration damping groove 151.
Preferably, the degree of depth of outer vibration damping groove 151 is greater than the degree of depth of interior vibration damping groove 153.
Typically, the degree of depth of outer vibration damping groove 151 is comparatively large, as being more than or equal to 5mm (Extreme breadth can at about 5mm).And the degree of depth of interior vibration damping groove 153 is general less, can at about 2 ~ 3mm (Extreme breadth can at about 5mm).Normally be shaped by modes such as injections in a mold this is because support vibration-damped component 1, if therefore interior vibration damping groove 153 is excessively dark, then to cause the core for making it be shaped cannot from the demoulding in the cavity 13 of support vibration-damped component 1.Certainly, the concrete size of vibration damping groove determines according to the overall dimensions and performance requirement that support vibration-damped component 1, therefore above sized data is only exemplary, instead of the restriction to the utility model protection domain.
Preferably, above vibration damping groove (comprising interior vibration damping groove 153 and outer vibration damping groove 151) is the annular groove around supporting vibration-damped component 1.
That is, vibration damping groove preferably encloses around the circumference one supporting vibration-damped component 1, thus forms the ring-type closed, and all can play uniform effectiveness in vibration suppression like this in each position supporting vibration-damped component 1.
Preferably, the bottom of above vibration damping groove (comprising interior vibration damping groove 153 and outer vibration damping groove 151) is level and smooth cambered surface.
That is, the bottom surface (namely relative with its opening face) of vibration damping groove is not preferably plane, does not have corner angle yet, but smooth and bending cambered surface: such as, the edge of the longitudinal section of vibration damping groove can be " U-shaped ", " arc " etc.This bottom surface is that the vibration damping groove of cambered surface is convenient to stripping operation on the one hand, on the other hand, also not easily produces stress and concentrates.
Obviously, support vibration-damped component 1 except vibration isolation, also must have enough rigidity to play supports compressor 3 and to stop the effect that compressor 3 vibrates itself, and vibration damping groove is equivalent to the portion of material that " cutting out " supports vibration-damped component 1, therefore its rigidity can be reduced.For this reason, preferably, as shown in Figure 4, Figure 5, support vibration-damped component 1 and can be divided into two-part, part wherein near upper end is vibration damping portion 15, and the part near lower end is supporting portion 17, and all above-mentioned vibration damping grooves are all located in vibration damping portion 15, and at support vibration-damped component 1 axially, the length of supporting portion 17 is more than or equal to 5mm.
That is, vibration damping groove is preferably all positioned at and supports vibration-damped component 1 top (vibration damping portion 15), and support vibration-damped component 1 bottom and have one section (supporting portion 17) there is no vibration damping groove, and supporting portion 17 length is at least 5mm, certainly, its concrete length will determine according to the overall dimensions of support vibration-damped component 1, performance requirement, but usually preferred at 5 ~ 30mm, preferred at 10 ~ 20mm further.By arranging the supporting portion 17 that a section does not have vibration damping groove, support vibration-damped component 1 can be made to have enough rigidity on the whole, thus the performance ensureing its support performance and stop compressor 3 itself to vibrate.
The present embodiment also provides a kind of compressor assembly, and as shown in Figure 6, it comprises compressor 3, substrate 5, multiple above-mentioned support vibration-damped component 1, wherein, supports vibration-damped component 1 and is supported on substrate 5 by compressor 3.
Preferably, above-mentioned compressor 3 is rotary frequency-changeable compressor.
Why preferred rotary frequency-changeable compressor, be because rotary compressor stock size is comparatively large on the one hand, the vibration of generation is also comparatively large, therefore more needs the support vibration-damped component 1 using the present embodiment.Meanwhile, as previously mentioned, the support vibration-damped component 1 of the present embodiment all has good anti-vibration performance under variant frequency, therefore is specially adapted to frequency-changeable compressor.
Testing property:
Compressor assembly is formed, to test their damping property respectively with the support vibration-damped component of existing support vibration-damped component, the utility model embodiment and the rotary frequency-changeable compressor of 4X Power type of Shanghai Hitachi, Ltd.
Wherein, existing support vibration-damped component is the support vibration-damped component that compressor carries, and is made up of natural rubber, does not have vibration damping groove.
The support vibration-damped component of the present embodiment is made up of the VC308 type damping rubber of 3M company.The damping rubber Shore A hardness of this model is 40 degree, and damping capacity is then as shown in Figure 7, visible, and at the temperature of 4.98 DEG C, its maximum damping factor is 2.1.The support vibration-damped component of the present embodiment has three kinds, and one has two groups of vibration damping grooves (an interior vibration damping groove and an outer vibration damping groove are called one group of vibration damping groove), and another kind has one group of vibration damping groove, last a kind of without vibration damping groove.
Compressor circumference is evenly sticked the 356A32 type acceleration transducer of 6 Precision Connector Designs, Inc., compressor mean acceleration is circumferentially measured under different operating frequency, (namely acceleration transducer provides is average acceleration value in 10 seconds to each test time 10s, and do not consider direction), the mean value getting 6 sensors is measurement result.
As shown in Figure 8, use the mean acceleration of the compressor of the support vibration-damped component with two groups of vibration damping grooves of the present embodiment to be less than the mean acceleration of the compressor using existing support vibration-damped component always, especially when frequency of okperation lower (30 ~ 50Hz), the two difference is more obvious, and the former mean acceleration is lower than the latter by about 10 ~ 20%.This shows, adopt the support vibration-damped component of the present embodiment that the acceleration of compressor itself can be made less, namely make the motion of compressor itself (vibration) less, therefore the support vibration-damped component of the present embodiment can play the effect of the vibration reducing compressor itself.
In addition, compressor is run with the frequency of okperation of 28Hz, and with the vibration of the testlab device measuring compressor of LMS company itself and the vibration amplitude (amplitude in units of millimeter) of substrate, deduct the vibration of substrate with the vibration of compressor itself, more namely obtain vibration isolation rate with acquired results divided by the vibration of compressor itself.
Result shows, the vibration isolation rate of existing support vibration-damped component is 87%, the vibration isolation rate of the support vibration-damped component of two groups of vibration damping grooves of having of the present embodiment is 92%, and the support vibration-damped component vibration isolation rate having one group of vibration damping groove is 84%, and the support vibration-damped component vibration isolation rate not having vibration damping groove is 79%.As can be seen here, the support vibration-damped component of the present embodiment can play better vibration isolating effect (although vibration isolation rate when not having groove is lower than prior art, but also can satisfy the demands, and it also has the effect reducing compressor vibration itself), simultaneously, by setting up vibration damping groove on support vibration-damped component, can further improve its vibration isolating effect.
Be understandable that, the illustrative embodiments that above mode of execution is only used to principle of the present utility model is described and adopts, but the utility model is not limited thereto.For those skilled in the art, when not departing from spirit of the present utility model and essence, can make various modification and improvement, these modification and improvement are also considered as protection domain of the present utility model.
Claims (16)
1. support a vibration-damped component, it, for workpiece is supported on substrate, is characterized in that,
Described support vibration-damped component is made up of damping material.
2. support vibration-damped component according to claim 1, is characterized in that,
Described damping material is damping rubber.
3. support vibration-damped component according to claim 1, is characterized in that,
In the scope of-20 DEG C to 30 DEG C, the damping factor of described damping material is more than or equal to 0.9.
4. support vibration-damped component according to claim 1, is characterized in that,
The Shore A hardness of described damping material is between 30 degree to 60 degree.
5. support vibration-damped component according to claim 1, is characterized in that,
Described support vibration-damped component is the support vibration-damped component for supports compressor.
6. support vibration-damped component according to claim 1, is characterized in that,
Described support vibration-damped component is column, and its upper end is for connecting described workpiece, and lower end is for being located at substrate.
7. support vibration-damped component according to claim 6, is characterized in that,
Described support vibration-damped component is cylindric.
8. support vibration-damped component according to claim 6, is characterized in that,
The cavity for wearing bolt along its axial distribution is provided with in described support vibration-damped component.
9. support vibration-damped component according to claim 6, is characterized in that,
The outer surface of described support vibration-damped component is provided with at least one vibration damping groove distributed along its circumference.
10. support vibration-damped component according to claim 9, is characterized in that,
The cavity for wearing bolt along its axial distribution is provided with in described support vibration-damped component;
The internal surface of described support vibration-damped component is provided with at least one vibration damping groove distributed along its circumference, and the vibration damping groove of described support vibration-damped component internal surface is in the position corresponding with the vibration damping groove supporting vibration-damped component outer surface.
11. support vibration-damped components according to claim 10, is characterized in that,
The degree of depth of the vibration damping groove of described support vibration-damped component outer surface is greater than the degree of depth of the vibration damping groove of described support vibration-damped component internal surface.
12., according to the support vibration-damped component in claim 9 to 11 described in any one, is characterized in that,
The part of described support vibration-damped component near upper end is vibration damping portion, and the part near lower end is supporting portion, and all described vibration damping grooves are all located in described vibration damping portion;
At described support vibration-damped component axially, the length of described supporting portion is more than or equal to 5 millimeters.
13., according to the support vibration-damped component in claim 9 to 11 described in any one, is characterized in that,
Described vibration damping groove is the annular groove around described support vibration-damped component.
14., according to the support vibration-damped component in claim 9 to 11 described in any one, is characterized in that,
The bottom of described vibration damping groove is level and smooth cambered surface.
15. 1 kinds of compressor assemblies, comprise compressor, substrate, multiple support vibration-damped component; Described compressor supports on the substrate by described support vibration-damped component, it is characterized in that,
Described support vibration-damped component is the support vibration-damped component in claim 1 to 14 described in any one.
16. compressor assemblies according to claim 15, is characterized in that,
Described compressor is rotary frequency-changeable compressor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420779485.4U CN204458248U (en) | 2014-12-11 | 2014-12-11 | Support vibration-damped component, compressor assembly |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420779485.4U CN204458248U (en) | 2014-12-11 | 2014-12-11 | Support vibration-damped component, compressor assembly |
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| CN204458248U true CN204458248U (en) | 2015-07-08 |
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| CN201420779485.4U Expired - Fee Related CN204458248U (en) | 2014-12-11 | 2014-12-11 | Support vibration-damped component, compressor assembly |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106440635A (en) * | 2016-11-30 | 2017-02-22 | 广东美芝制冷设备有限公司 | Refrigerating device |
| CN111266723A (en) * | 2019-12-27 | 2020-06-12 | 上海骄成机电设备有限公司 | Integrated mounting structure of bonding tool for ultrasonic welding |
-
2014
- 2014-12-11 CN CN201420779485.4U patent/CN204458248U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106440635A (en) * | 2016-11-30 | 2017-02-22 | 广东美芝制冷设备有限公司 | Refrigerating device |
| CN106440635B (en) * | 2016-11-30 | 2022-05-20 | 广东美芝制冷设备有限公司 | Refrigeration device |
| CN111266723A (en) * | 2019-12-27 | 2020-06-12 | 上海骄成机电设备有限公司 | Integrated mounting structure of bonding tool for ultrasonic welding |
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Granted publication date: 20150708 Termination date: 20211211 |