CN206770220U - Crankshaft structure and compressor with same - Google Patents
Crankshaft structure and compressor with same Download PDFInfo
- Publication number
- CN206770220U CN206770220U CN201720569249.3U CN201720569249U CN206770220U CN 206770220 U CN206770220 U CN 206770220U CN 201720569249 U CN201720569249 U CN 201720569249U CN 206770220 U CN206770220 U CN 206770220U
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- China
- Prior art keywords
- noise elimination
- noise
- crankshaft
- elimination part
- communicating passage
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 230000002093 peripheral effect Effects 0.000 claims abstract description 6
- 230000008030 elimination Effects 0.000 claims description 87
- 238000003379 elimination reaction Methods 0.000 claims description 87
- 230000009467 reduction Effects 0.000 claims description 31
- 239000003507 refrigerant Substances 0.000 abstract description 7
- 230000030279 gene silencing Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 238000010276 construction Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000000470 constituent Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000035772 mutation Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Compressor (AREA)
Abstract
The utility model provides a crankshaft structure and have its compressor. The crankshaft structure includes: the crankshaft body is provided with a through flow groove on the outer peripheral surface; and the silencing part is arranged on the crankshaft body and is communicated with the through-flow groove. Through set up amortization portion on the bent axle to make this amortization portion and the through-flow groove on the bent axle communicate, can reduce the noise of the refrigerant that passes through from the through-flow groove effectively, then reduced the noise of the compressor that has this bent axle structure, improved customer and used and experienced.
Description
Technical field
Compressor apparatus technical field is the utility model is related to, in particular to a kind of crankshaft structure and there is its
Compressor.
Background technology
In the prior art, the pneumatic noise of compressor is the main constituents of compressor noise.Existing compressor is bent
There is bonding part between axle and rotor, typically connected by hot cover process, bent axle offers in the position with rotator joint
Multiple through-flow grooves, through-flow groove have linear pattern or a screw type, the main function of through-flow groove be in increase compressor refrigerant from electricity
The area that machine cavity of resorption is discharged to epicoele, using crankshaft structure of the prior art compressor is arranged by the through-flow groove on bent axle
With very high pneumatic noise when going out refrigerant.
Utility model content
Main purpose of the present utility model is to provide a kind of crankshaft structure and has its compressor, to solve existing skill
In art the problem of compressor airflow high noise.
To achieve these goals, according to one side of the present utility model, there is provided a kind of crankshaft structure, including：It is bent
Shaft body, through-flow groove is offered on the outer peripheral face of crankshaft body；Noise elimination part, it is arranged on crankshaft body, noise elimination part and through-flow groove
It is connected.
Further, noise elimination part includes：Resonant cavity, resonant cavity are the blind hole being opened on crankshaft body, and resonant cavity is with leading to
Chute is connected.
Further, noise elimination part also includes：Communicating passage, communicating passage are opened on crankshaft body, and the of communicating passage
One end is connected with through-flow groove, and the second end of communicating passage is connected with resonant cavity.
Further, communicating passage is the groove being opened on crankshaft body outer surface, or, communicating passage is to be opened in
Through hole in crankshaft body, or, the part of communicating passage is the groove being opened on crankshaft body outer surface, communicating passage
Remainder is the through hole being opened in crankshaft body.
Further, noise elimination part is multiple that multiple noise elimination parts are positioned apart from, and multiple noise elimination parts are respectively positioned in through-flow groove
The side of line.
Further, noise elimination part is multiple that the noise elimination part of part in multiple noise elimination parts forms the first noise reduction group, its remaining part
The noise elimination part divided forms the second noise reduction group, and the first noise reduction group is located at the first side of the center line of through-flow groove, and the second noise reduction group is positioned at logical
Second side of the center line of chute.
Further, the noise elimination part of the first noise reduction group is positioned apart from, and the noise elimination part of the second noise reduction group is positioned apart from, the
The noise elimination part of the noise elimination part of one noise reduction group and the second noise reduction group is set correspondingly.
Further, the volume of resonant cavity of at least one noise elimination part in multiple noise elimination parts and being total to for remaining noise elimination part
Shake chamber volume it is different, and/or the length of the communicating passage of at least one noise elimination part in multiple noise elimination parts and remaining noise reduction
The length of the communicating passage in portion is different, and/or the cross section of the communicating passage of at least one noise elimination part in multiple noise elimination parts
Area is different from the area of the cross section of the communicating passage of remaining noise elimination part.
Further, the depth of the radial direction along crankshaft body of resonant cavity is more than or equal to through-flow groove along crankshaft body
Radial direction depth.
According to another aspect of the present utility model, there is provided a kind of compressor, including crankshaft structure, crankshaft structure are above-mentioned
Crankshaft structure.
Using the technical solution of the utility model, by setting noise elimination part on bent axle, and make on the noise elimination part and bent axle
Through-flow groove be connected, the noise of the refrigerant passed through from through-flow groove can be effectively reduced, then reduced with the bent axle
The noise of the compressor of structure, improve client's usage experience.
Brief description of the drawings
The Figure of description for forming the part of the application is used for providing further understanding to of the present utility model, this practicality
New schematic description and description is used to explain the utility model, does not form to improper restriction of the present utility model.
In the accompanying drawings：
Fig. 1 shows the structural representation of the embodiment according to crankshaft structure of the present utility model；
Fig. 2 shows the structural representation of another embodiment according to crankshaft structure of the present utility model；
Fig. 3 shows the mplifying structure schematic diagram at A in Fig. 2；
Fig. 4 shows the depth of through-flow groove and the depth relationship schematic diagram of resonant cavity.
Wherein, above-mentioned accompanying drawing marks including the following drawings：
10th, crankshaft body；11st, through-flow groove；20th, noise elimination part；21st, resonant cavity；22nd, communicating passage；
30th, rotor.
Embodiment
It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the application can phase
Mutually combination.Describe the utility model in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
It should be noted that term used herein above is merely to describe embodiment, and be not intended to restricted root
According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singulative
It is also intended to include plural form, additionally, it should be understood that, when in this manual using term "comprising" and/or " bag
Include " when, it indicates existing characteristics, step, operation, device, component and/or combinations thereof.
It should be noted that term " first ", " second " in the description and claims of this application and accompanying drawing etc.
It is for distinguishing similar object, without for describing specific order or precedence.It should be appreciated that the art so used
Language can exchange in the appropriate case, so that presently filed embodiment described herein for example can be with except illustrating herein
Or the order beyond those of description is implemented.In addition, term " comprising " and " having " and their any deformation, it is intended that
Cover it is non-exclusive include, for example, containing the process of series of steps or unit, method, system, product or equipment need not limit
In those steps or unit for clearly listing, but may include not list clearly or for these processes, method, production
The intrinsic other steps of product or equipment or unit.
For the ease of description, space relative terms can be used herein, as " ... on ", " ... top ",
" ... upper surface ", " above " etc., for describing such as a device shown in the figure or feature and other devices or spy
The spatial relation of sign.It should be appreciated that space relative terms are intended to comprising the orientation except device described in figure
Outside different azimuth in use or operation.For example, if the device in accompanying drawing is squeezed, it is described as " in other devices
It will be positioned as " under other devices or construction after the device of part or construction top " or " on other devices or construction "
Side " or " under other devices or construction ".Thus, exemplary term " ... top " can include " ... top " and
" in ... lower section " two kinds of orientation.The device can also other different modes positioning (being rotated by 90 ° or in other orientation), and
And respective explanations are made to the relative description in space used herein above.
Now, the illustrative embodiments according to the application are more fully described with reference to the accompanying drawings.However, these are exemplary
Embodiment can be implemented by many different forms, and should not be construed to be limited solely to embodiment party set forth herein
Formula.It should be appreciated that thesing embodiments are provided so that disclosure herein is thoroughly and complete, and these are shown
The design of example property embodiment is fully conveyed to those of ordinary skill in the art, in the accompanying drawings, for the sake of clarity, it is possible to expand
The big thickness of layer and region, and make identical device is presented with like reference characters, thus they are retouched by omitting
State.
With reference to shown in Fig. 1 to Fig. 4, according to the utility model embodiment, there is provided a kind of crankshaft structure.
Specifically, the crankshaft structure includes crankshaft body 10 and noise elimination part 20.Offered on the outer peripheral face of crankshaft body 10
Through-flow groove 11.Noise elimination part 20 is arranged on crankshaft body 10, and noise elimination part 20 is connected with through-flow groove 11.
In the present embodiment, by setting noise elimination part on bent axle, and the noise elimination part is made to be connected with the through-flow groove on bent axle
It is logical, the noise of the refrigerant passed through from through-flow groove can be effectively reduced, then reduces the compressor with the crankshaft structure
Noise, improve client's usage experience.
Specifically, as shown in figure 3, noise elimination part 20 includes resonant cavity 21, resonant cavity 21 is to be opened on crankshaft body 10
Blind hole, resonant cavity 21 are connected with through-flow groove 11.So set and cause when refrigerant makes a noise by through-flow groove 11, noise meeting
It is sent in resonant cavity 21, is passed to the noise of the certain frequency in resonant cavity 21 and can be resonated in resonant cavity 21, then
Be converted can heat energy, so as to noise caused by reducing at through-flow groove 11.In the present embodiment, through-flow groove 11 can be along song
The straight line type groove of the outer peripheral face of axle or the through-flow groove of helical-type line.
Further, in order to improve the sound deadening of resonant cavity 21, noise elimination part 20 also includes communicating passage 22.Communicating passage
22 are opened on crankshaft body 10, and the first end of communicating passage 22 is connected with through-flow groove 11, the second end of communicating passage 22 with
Resonant cavity 21 is connected.Caused noise can be passed to by communicating passage 22 to common to occur in resonant cavity 21 in through-flow groove 11
Shake and then reach the purpose of noise reduction.
Preferably, communicating passage 22 is the groove being opened on the outer surface of crankshaft body 10.Certainly, communicating passage 22 also may be used
To be the through hole being opened in crankshaft body 10, or, the part of communicating passage 22 can also be opened in crankshaft body 10
Groove on outer surface, the remainder of communicating passage 22 are the through hole being opened in crankshaft body 10.Same energy is so set
Enough play a part of noise caused by through-flow groove 11 being sent to resonant cavity 21.
During in order to further reduce crank rotation at through-flow groove 11 caused by noise, noise elimination part 20 can be set
To be multiple, multiple noise elimination parts 20 are positioned apart from, and multiple noise elimination parts 20 are respectively positioned on the side of the center line of through-flow groove 11.
Further, noise elimination part 20 is multiple that the noise elimination part 20 of part in multiple noise elimination parts 20 forms the first noise reduction group,
The noise elimination part 20 of remainder forms the second noise reduction group, and the first noise reduction group is located at the first side of the center line of through-flow groove 11, and second disappears
Sound group is located at the second side of the center line of through-flow groove 11.So set to be effectively reduced during crank rotation and produced at through-flow groove 11
Noise, so as to reduce have the crankshaft structure compressor noise, improve user experience.Wherein, through-flow groove
The first side and the second side of 11 center line are relative both sides.
Preferably, the noise elimination part 20 of the first noise reduction group can be positioned apart from, the noise elimination part 20 of the second noise reduction group is spaced
Ground is set, and the noise elimination part 20 of the noise elimination part 20 of the first noise reduction group and the second noise reduction group is set correspondingly.So setting can
Further have the function that to reduce noise caused by the through-flow groove 11 of crankshaft structure.Improve the practicality of crankshaft structure.
Due to the noise of noise protection multi-frequency caused by through-flow groove 11, and identical resonant cavity can only be to specific frequency
The noise of rate carries out noise reduction.Therefore, can be by the volume of the resonant cavity 21 of at least one noise elimination part 20 in multiple noise elimination parts 20
It is arranged to different from the volume of the resonant cavity of remaining noise elimination part 20 21.It is of course also possible to by multiple noise elimination parts 20 at least
The length of the communicating passage 22 of one noise elimination part 20 is arranged to different from the length of the communicating passage of remaining noise elimination part 20 22.Also
The area of the cross section of the communicating passage 22 of at least one noise elimination part 20 in multiple noise elimination parts 20 can be arranged to and remaining
Noise elimination part 20 communicating passage 22 cross section area it is different.So setting enables to noise elimination part can be to a variety of sounds
The noise of frequency carries out noise reduction, greatly reduces noise caused by the through-flow groove 11 of bent axle.
Preferably, the depth of the radial direction along crankshaft body 10 of resonant cavity 21 is more than or equal to through-flow groove 11 along bent axle
The depth of the radial direction of body 10.As shown in figure 4, show that the depth h of resonant cavity 21 is more than the depth h1's of through-flow groove 11
Embodiment, the noise reduction that can improve resonant cavity 21 is so set.
Wherein, the noise reduction frequency of resonant cavity 21 is fr,
C in above formula is the spread speed of sound, and S is the area of the cross section of communicating passage 22, and l is communicating passage 22
Length；V is the volume of resonant cavity 21, and β is update the system, is typically taken between 0.7~0.9；D is the cross section face of communicating passage 22
Product equivalent diameter.
Crankshaft structure in above-described embodiment can be also used for compressor apparatus technical field, i.e., according to of the present utility model
On the other hand, there is provided a kind of compressor.The compressor includes crankshaft structure.Crankshaft structure is the bent axle knot in above-described embodiment
Structure.The crankshaft structure includes crankshaft body 10 and noise elimination part 20.Through-flow groove 11 is offered on the outer peripheral face of crankshaft body 10.Noise reduction
Portion 20 is arranged on crankshaft body 10, and noise elimination part 20 is connected with through-flow groove 11.In the present embodiment, by being set on bent axle
Noise elimination part, and the noise elimination part is connected with the through-flow groove on bent axle, the refrigerant passed through from through-flow groove can be effectively reduced
Noise, then reduce the noise of the compressor with the crankshaft structure, improve client's usage experience.
Specifically, multiple resonant cavities are opened up beside the through-flow groove of compressor crankshaft structure, the resonant cavity can be
Helmholtz resonant cavities, resonant cavity are made up of communicating passage and resonant cavity, the area S of the cross section by changing communicating passage,
The length l of the communicating passage and volume V of resonant cavity, thus it is possible to vary the frequency of noise elimination of resonant cavity, resonant cavity is according to certain arrangement
Combination, the noise of different frequency can be eliminated, reach the effect for improving compressor airflow noise, improve compressor quality.
By opening up multiple different sizes beside the through-flow groove of bent axle, being resonated according to the Helmholtz of certain permutation and combination
Chamber, the noise of different frequency can be eliminated.Specifically, it is through-flow to be that crankshaft structure has with the junction of rotor 30 for the bent axle of compressor
Groove, blind hole being opened up beside through-flow groove, blind hole is referred to as cavity i.e. resonant cavity, and communicating passage is opened up between cavity and through-flow groove,
So, a closed container is formed in the inner surface of through-flow groove, communicating passage, resonant cavity and rotor, referred to as Helmholtz is total to
Shake chamber.When the noise in through-flow groove sound wave frequency close to resonant cavity intrinsic frequency when, resonant cavity produce resonance, by sound
Heat energy can be changed into, so as to reach the purpose of noise elimination.
For compressor noise-reducing structure mainly using expansion type muffler, its principle is being cut according to sound wave in the prior art
Reflection occurs at the mutation of face come noise of decaying.The noise reduction principle of the application is to work as the frequency of sound wave close to the intrinsic frequency of resonant cavity
When, resonant cavity just produces resonance, and acoustic energy is changed into heat energy, reaches erasure effect, is characterized in strong to the selectivity of frequency, such as
The resonant frequency of resonant cavity is 1000Hz, then it can only eliminate the noise of (about ± 100dB) near 1000Hz.If it is desired to eliminate
During the noise of multiple frequency contents such as 1000Hz, 1500Hz, 2000Hz, just set the resonant cavity of different resonant frequencies right therewith
Should, based on this, the multiple resonant cavity of described setting, can so arrange in the application：First row is located in through-flow groove
The resonant frequency of the resonant cavity of first side of line is 1000Hz, eliminates 1000Hz noises, and second row is the center line positioned at through-flow groove
The resonant frequency of resonant cavity of the second side be 1500Hz, eliminate 1500Hz noises.Certainly, can when through-flow groove is multiple
So that 2000Hz will be arranged to positioned at the resonant frequency of the resonant cavity of the first side of the center line of another through-flow groove, eliminates 2000Hz and make an uproar
Sound, the like, the resonant cavity of different frequency is set, has thus reached the effect of the multiple frequency content noises of elimination.
The frequency of noise elimination f of resonant cavityrBy the speed c of sound, the area S of the cross section of communicating passage, communicating passage length
The volume V (blind hole) of degree l and resonant cavity determines, area S, the length l of communicating passage of the cross section by changing passage
And the volume V of resonant cavity, thus it is possible to vary the frequency of noise elimination of resonant cavity.Because resonant cavity disappears to the noise near its resonant frequency
Volume is maximum, and the noise of other frequencies is hardly eliminated the noise, and reaches larger in the broadband of different frequency to reach and disappears
The effect of volume, improve the noise characteristic of compressor, can by resonant cavity according to certain permutation and combination, according to noise elimination target,
Multiple rows of resonant cavity is set from right to left in the through-flow groove of crankshaft structure, the resonant cavity often arranged corresponds to different frequency of noise elimination, finally
Reach wide band soundproof effect, so set and effectively improve compressor quality.
Than that described above, it is also necessary to which explanation is " one embodiment ", " another implementation spoken of in this manual
Example ", " embodiment " etc., refer to that the specific features, structure or the feature that combine embodiment description are included in the application summary
Property description at least one embodiment in.It is not necessarily to refer to same reality that statement of the same race, which occur, in multiple places in the description
Apply example.Furthermore, it is understood that when describing a specific features, structure or feature with reference to any embodiment, what is advocated is knot
Other embodiment is closed to realize that this feature, structure or feature also fall in the scope of the utility model.
In the above-described embodiments, the description to each embodiment all emphasizes particularly on different fields, and does not have the portion being described in detail in some embodiment
Point, it may refer to the associated description of other embodiment.
Preferred embodiment of the present utility model is the foregoing is only, is not limited to the utility model, for this
For the technical staff in field, the utility model can have various modifications and variations.It is all in the spirit and principles of the utility model
Within, any modification, equivalent substitution and improvements made etc., it should be included within the scope of protection of the utility model.
Claims (10)
- A kind of 1. crankshaft structure, it is characterised in that including：Crankshaft body (10), through-flow groove (11) is offered on the outer peripheral face of the crankshaft body (10)；Noise elimination part (20), it is arranged on the crankshaft body (10), the noise elimination part (20) is connected with the through-flow groove (11).
- 2. crankshaft structure according to claim 1, it is characterised in that the noise elimination part (20) includes：Resonant cavity (21), the resonant cavity (21) are to be opened in blind hole on the crankshaft body (10), the resonant cavity (21) It is connected with the through-flow groove (11).
- 3. crankshaft structure according to claim 2, it is characterised in that the noise elimination part (20) also includes：Communicating passage (22), the communicating passage (22) are opened on the crankshaft body (10), the communicating passage (22) First end is connected with the through-flow groove (11), and the second end of the communicating passage (22) is connected with the resonant cavity (21).
- 4. crankshaft structure according to claim 3, it is characterised in thatThe communicating passage (22) is the groove being opened on the crankshaft body (10) outer surface, or,The communicating passage (22) is the through hole being opened in the crankshaft body (10), or,The part of the communicating passage (22) is to be opened in groove on the crankshaft body (10) outer surface, the communicating passage (22) remainder is the through hole being opened in the crankshaft body (10).
- 5. crankshaft structure according to claim 3, it is characterised in that the noise elimination part (20) is multiple described to disappear to be multiple Line (20) is positioned apart from, and multiple noise elimination parts (20) are respectively positioned on the side of the center line of the through-flow groove (11).
- 6. crankshaft structure according to claim 3, it is characterised in that the noise elimination part (20) is multiple described to disappear to be multiple The noise elimination part (20) of part in line (20) forms the first noise reduction group, the noise elimination part (20) composition of remainder the Two noise reduction groups, the first noise reduction group are located at the first side of the center line of the through-flow groove (11), and the second noise reduction group is located at institute State the second side of the center line of through-flow groove (11).
- 7. crankshaft structure according to claim 6, it is characterised in that between the noise elimination part (20) of the first noise reduction group Set every ground, the noise elimination part (20) of the second noise reduction group is positioned apart from, the noise elimination part of the first noise reduction group (20) noise elimination part (20) with the second noise reduction group is set correspondingly.
- 8. the crankshaft structure according to any one of claim 5 to 6, it is characterised in that in multiple noise elimination parts (20) At least one noise elimination part (20) the resonant cavity (21) volume and noise elimination part remaining described (20) it is described common Shake chamber (21) volume it is different, and/orThe length of the communicating passage (22) of at least one noise elimination part (20) in multiple noise elimination parts (20) and its The length of the communicating passage (22) of the remaining noise elimination part (20) is different, and/orThe cross section of the communicating passage (22) of at least one noise elimination part (20) in multiple noise elimination parts (20) Area is different from the area of the cross section of the communicating passage (22) of noise elimination part remaining described (20).
- 9. crankshaft structure according to claim 2, it is characterised in that the resonant cavity (21) along the crankshaft body (10) depth of radial direction is more than or equal to the depth of radial direction of the through-flow groove (11) along the crankshaft body (10) Degree.
- 10. a kind of compressor, including crankshaft structure, it is characterised in that the crankshaft structure is any one of claim 1 to 9 Described crankshaft structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720569249.3U CN206770220U (en) | 2017-05-19 | 2017-05-19 | Crankshaft structure and compressor with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720569249.3U CN206770220U (en) | 2017-05-19 | 2017-05-19 | Crankshaft structure and compressor with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206770220U true CN206770220U (en) | 2017-12-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720569249.3U Expired - Fee Related CN206770220U (en) | 2017-05-19 | 2017-05-19 | Crankshaft structure and compressor with same |
Country Status (1)
| Country | Link |
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| CN (1) | CN206770220U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107131130A (en) * | 2017-05-19 | 2017-09-05 | 珠海凌达压缩机有限公司 | Crankshaft structure and compressor with same |
-
2017
- 2017-05-19 CN CN201720569249.3U patent/CN206770220U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107131130A (en) * | 2017-05-19 | 2017-09-05 | 珠海凌达压缩机有限公司 | Crankshaft structure and compressor with same |
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Granted publication date: 20171219 |