CN104500402B - Rotary compressor - Google Patents
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- CN104500402B CN104500402B CN201410779069.9A CN201410779069A CN104500402B CN 104500402 B CN104500402 B CN 104500402B CN 201410779069 A CN201410779069 A CN 201410779069A CN 104500402 B CN104500402 B CN 104500402B
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Abstract
The invention discloses a kind of rotary compressor, including：Compression mechanism and the first noise reduction filter core, compression mechanism includes base bearing, cylinder and supplementary bearing, base bearing is located at the top of cylinder, supplementary bearing is located at the bottom of cylinder, compression chamber is limited between base bearing, cylinder and supplementary bearing, exhaust outlet is formed with supplementary bearing, the exhaust passage connected with exhaust outlet is formed with compression mechanism, base bearing, cylinder and supplementary bearing are run through in exhaust passage；First noise reduction filter core is located in exhaust passage, exhaust passage is separated into main flow cavity and silencing cavity by the first noise reduction filter core, multiple first micropores are formed with first noise reduction filter core, main flow cavity is connected by multiple first micropores with silencing cavity, the area of each the first micropore is less than or equal to π mm2.Rotary compressor of the invention, it is possible to achieve noise reduction, and it is small to the performance impact of rotary compressor.
Description
Technical field
The present invention relates to compressor manufacturing technical field, more particularly, to a kind of rotary compressor.
Background technology
Pointed out in correlation technique, pressurized gas refrigerant is discharged from the exhaust outlet of bearing, forms strong acoustic pressure wave, one
Divide sonic impinging to being located in the muffler on bearing, part energy is consumed because of changes of section, another part is with pressure wave
Form with refrigerant flow and propagate.Traditional compression mechanism noise reduction mainly sets resonant chamber or in axle by exhaust incision
Expansion type silencer is set after the exhaust outlet for holding, however, these noise elimination structures are more or less deposited to the performance of rotary compressor
In certain influence, and noise dampening efficiency is limited.
The content of the invention
It is contemplated that at least solving one of technical problem present in prior art.Therefore, one object of the present invention
It is to propose a kind of rotary compressor, the noise of the rotary compressor is small.
Rotary compressor according to embodiments of the present invention, including：Compression mechanism, the compression mechanism include base bearing,
Cylinder and supplementary bearing, the base bearing are located at the top of the cylinder, and the supplementary bearing is located at the bottom of the cylinder, the master
Compression chamber is limited between bearing, the cylinder and the supplementary bearing, exhaust outlet, the compressor are formed with the supplementary bearing
The exhaust passage connected with the exhaust outlet is formed with structure, the base bearing, the cylinder and institute are run through in the exhaust passage
State supplementary bearing；With the first noise reduction filter core, the first noise reduction filter core is located in the exhaust passage, and the first noise reduction filter core will
The exhaust passage is separated into main flow cavity and silencing cavity, and multiple first micropores are formed with the first noise reduction filter core, described
Main flow cavity is connected by the multiple first micropore with the silencing cavity, and the area of each first micropore is less than or equal to π
mm2。
Rotary compressor according to embodiments of the present invention, is filtered by setting the first noise reduction with multiple first micropores
The noise elimination cavity connected with main flow cavity is limited between core, and the first noise reduction filter core and exhaust passage, it is possible to achieve noise reduction, and it is right
The performance impact of rotary compressor is small.
Further, the top and bottom of the first noise reduction filter core are connected with the passageway seals.
Specifically, the exhaust passage includes the first passage being sequentially communicated to third channel, and the first passage is formed
On base bearing, the second channel is formed on cylinder, and the third channel is formed on supplementary bearing, the second channel
Cross-sectional area more than the first passage and the third channel cross-sectional area, wherein the first noise reduction filter core be located at it is described
In second channel.
Alternatively, the upper end of the first noise reduction filter core contacts with the lower surface of the base bearing, the first noise reduction filter
The lower end of core contacts with the upper surface of the supplementary bearing.
Or alternatively, the upper end of the first noise reduction filter core stretch into the first passage and with the first passage
Inwall is contacted, and the lower end of the first noise reduction filter core is stretched into the third channel and contacted with the inwall of the third channel.
Further, the exhaust passage further includes at least one of the first silencing groove and the second silencing groove, its
Described in the first silencing groove be formed on the lower surface of base bearing and directly connected with the silencing cavity, the second noise reduction flute profile
Directly connected on the upper surface of supplementary bearing and with the silencing cavity.
Alternatively, the first noise reduction filter core is formed as tubular or tabular.
Still optionally further, when the first noise reduction filter core is formed as tubular, the first noise reduction filter core be straight tube or
Conical pipe.
Still optionally further, when the first noise reduction filter core is formed as tabular, the first noise reduction filter core be flat board or
Arc.
Alternatively, filling acoustic element in the silencing cavity.
Alternatively, the thickness of the first noise reduction filter core is less than or equal to 3mm.
Alternatively, the area sum of the multiple micropore is S1, and the area of the first noise reduction filter core is S2, wherein described
S1, S2 meet：S1/S2≤5%.
Alternatively, at least one second noise reduction filter cores are provided with the silencing cavity, are formed with the second noise reduction filter core
The silencing cavity is separated into many sub- silencing cavities, each described second micropore by multiple second micropores, the second noise reduction filter core
Area be less than or equal to π mm2。
Alternatively, each described first micropore is circular port, slotted eye, Long Circle hole or polygonal hole.
Additional aspect of the invention and advantage will be set forth in part in the description, and will partly become from the following description
Obtain substantially, or recognized by practice of the invention.
Brief description of the drawings
Of the invention above-mentioned and/or additional aspect and advantage will become from description of the accompanying drawings below to embodiment is combined
Substantially and be readily appreciated that, wherein：
Fig. 1 is the explosive view of rotary compressor according to embodiments of the present invention；
Fig. 2 is the assembling schematic diagram of rotary compressor according to embodiments of the present invention；
Fig. 3 is the sectional view of the rotary compressor shown in Fig. 2；
Fig. 4 is the sectional view of rotary compressor in accordance with another embodiment of the present invention；
Fig. 5 is the sectional view of the rotary compressor according to further embodiment of the present invention；
Fig. 6 is the assembling schematic diagram of the rotary compressor according to another embodiment of the invention；
Fig. 7 is the sectional view of the rotary compressor shown in Fig. 6；
Fig. 8 a are the stereograms of the first noise reduction filter core according to embodiments of the present invention；
Fig. 8 b are the profiles of the first noise reduction filter core shown in Fig. 8 a；
Fig. 9 a are the stereograms of the first noise reduction filter core in accordance with another embodiment of the present invention；
Fig. 9 b are the profiles of the first noise reduction filter core shown in Fig. 9 a；
Figure 10 is the profile of the first noise reduction filter core according to further embodiment of the present invention；
Figure 11 is the profile of the first noise reduction filter core according to another embodiment of the invention.
Reference：
100：Rotary compressor；
11：Base bearing；111：First passage；
12：Cylinder；121：Second channel；13：Supplementary bearing；131：Third channel；
14：Exhaust passage；141：Main flow cavity；142：Silencing cavity；
2：First noise reduction filter core；21：First micropore；
3：Secondary muffler；31：Secondary silencing cavity；4：Main muffler；41：Main silencing cavity；
5：Second noise reduction filter core；51：Second micropore.
Specific embodiment
Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings, wherein from start to finish
Same or similar label represents same or similar element or the element with same or like function.Below with reference to attached
It is exemplary to scheme the embodiment of description, is only used for explaining the present invention, and is not considered as limiting the invention.
In the description of the invention, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", " on ", D score, "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outward ", " axial direction ", " radial direction ",
The orientation or position relationship of instructions such as " circumferences " are, based on orientation shown in the drawings or position relationship, to be for only for ease of description originally
Invention and simplified description, must be with specific orientation, with specific square rather than instruction or the signified device of hint or element
Position construction and operation, therefore be not considered as limiting the invention.
Additionally, term " first ", " second " are only used for describing purpose, and it is not intended that indicating or implying relative importance
Or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can express or
Implicitly include one or more this feature.In the description of the invention, unless otherwise indicated, " multiple " is meant that two
Individual or two or more.
In the description of the invention, it is necessary to illustrate, unless otherwise clearly defined and limited, term " installation ", " phase
Company ", " connection " should be interpreted broadly, for example, it may be being fixedly connected, or being detachably connected, or be integrally connected；Can
Being to be joined directly together, it is also possible to be indirectly connected to by intermediary, can be two connections of element internal.For this area
For those of ordinary skill, above-mentioned term concrete meaning in the present invention can be understood with concrete condition.
Rotary compressor 100 according to embodiments of the present invention is described below with reference to Fig. 1-Figure 11.
As shown in figure 1, rotary compressor 100 according to embodiments of the present invention, including compression mechanism and the first noise reduction filter
Core 2.
Specifically, reference picture 1, compression mechanism include base bearing 11, cylinder 12 and supplementary bearing 13, the top of cylinder 12 and
Bottom is opened wide, and base bearing 11 is located at the top of cylinder 12, and supplementary bearing 13 is located at the bottom of cylinder 12, base bearing 11, cylinder 12
The compression chamber for compression refrigerant is limited and supplementary bearing 13 between.
The refrigerant in exhaust outlet, compression chamber after compression is formed with supplementary bearing 13 can discharge from the exhaust outlet.Further
Ground, the bottom of supplementary bearing 13 can be provided with secondary muffler 3, be limited between secondary muffler 3 and supplementary bearing 13 and connected with exhaust outlet
Secondary silencing cavity 31, so as to the refrigerant discharged from the exhaust outlet of supplementary bearing 13 can be entered into secondary silencing cavity 31.Thus, pass through
Main muffler 4 is set, noise can be effectively reduced.
The exhaust passage 14 connected with exhaust outlet is formed with compression mechanism, base bearing 11, cylinder is run through in exhaust passage 14
12 and supplementary bearing 13.For example, referring to Fig. 1 and with reference to Fig. 2-Fig. 7, exhaust passage 14 is vertically extending, and exhaust passage 14 is by pair
Silencing cavity 31 is connected with exhaust outlet, that is to say, that the refrigerant entered into secondary silencing cavity 31 can be discharged via exhaust passage 14
Compression mechanism.
First noise reduction filter core 2 is located in exhaust passage 14, and exhaust passage 14 is separated into main flow cavity by the first noise reduction filter core 2
141 and silencing cavity 142, multiple first micropores 21 are formed with the first noise reduction filter core 2, multiple first micropores 21 are filtered along the first noise reduction
The thickness direction of core 2 runs through the first noise reduction filter core 2, and main flow cavity 141 is connected by multiple first micropores 21 with silencing cavity 142.
It is appreciated that the number of the first micropore 21 can require and suitably choose that the present invention does not make specific limit to this according to actual noise elimination
It is fixed.Wherein, the area of each the first micropore 21 is less than or equal to π mm2。
Thus, the refrigerant after compression discharges to form pressure wave from the exhaust outlet of supplementary bearing 13, and pressure wave is to flow through exhaust logical
During road 14, the pressure wave in main flow cavity 141 can be total to by multiple first micropores 21 into silencing cavity 142 is interior
Shake consumed energy, so as to realize the function of noise reduction, and to the flow very little of main flow cavity 141, and then to rotary compressor
The influence of 100 performance can be ignored.
Wherein, arrangement mode of multiple first micropores 21 on the first noise reduction filter core 2 can be it is regular, or
It is random.For example, referring to Fig. 8 a and 9a and with reference to Fig. 8 b and Fig. 9 b, the first noise reduction filter core 2 is formed as tubular, multiple first
Micropore 21 is included in the circumferentially-spaced of the first noise reduction filter core 2 and opens up four row put, wherein two the first micropores of row 21 and other two
Along the first noise reduction filter core 2 diametrically, the first micropore of each column 21 is included along the axial direction of the first noise reduction filter core 2 the first micropore of row 21
The multiple being spaced apart from each other, the first micropore of each column 21 preferably in the axial direction of the first noise reduction filter core 2 uniform intervals distribution, it is above-mentioned its
In two the first micropores of row 21 and above-mentioned other the first micropore of two row 21 can interlock in the axial direction of the first noise reduction filter core 2 respectively cloth
Put；Or, above-mentioned wherein two the first micropores of row 21 and above-mentioned other the first micropore of two row 21 can also be filtered in the first noise reduction respectively
Corresponded in the axial direction of core 2.Wherein, each first micropore 21 is circular port, thus, processes simple and low cost.
Certainly, each first micropore 21 can also be slotted eye, Long Circle hole or polygonal hole etc..For example Figure 10's
Multiple first micropores 21 for being formed as prismatic shape are shown in example.Shown in the example of Figure 10 and be formed as triangle shape
Multiple first micropores 21 of shape.It is appreciated that the concrete shape of each the first micropore 21 and the cloth on the first noise reduction filter core 2
Put mode etc. can according to actual requirement adaptive change, the present invention this is not particularly limited.
Further, the top of base bearing 11 is also provided with main muffler 4, is limited between main muffler 4 and base bearing 11
Make main silencing cavity 41, the steam vent connected with main silencing cavity 41 be formed with main muffler 4, by exhaust passage 14 discharge it is cold
Matchmaker is entered into after carrying out further noise reduction in main silencing cavity 41, is discharged from the steam vent of main muffler 4.Thus, by setting master
Muffler 4, can further reduce noise.
Rotary compressor 100 according to embodiments of the present invention, is disappeared by setting with multiple first micropores 21 first
The noise elimination cavity connected with main flow cavity 141, Ke Yishi are limited between sound filter core 2, and the first noise reduction filter core 2 and exhaust passage 14
Existing noise reduction, and it is small to the performance impact of rotary compressor 100.
Alternatively, as shown in Figure 3-Figure 5, the top and bottom of the first noise reduction filter core 2 are tightly connected with exhaust passage 14.By
This, silencing cavity 142 is the cavity that substantially seals, and the main flow cavity 141 for now being formed in exhaust passage 14 is only by multiple the
One micropore 21 is connected with silencing cavity 142, such that it is able to silencing function is better achieved.
A specific embodiment of the invention, exhaust passage 14 includes that the first passage 111, second being sequentially communicated leads to
Road 121 and third channel 131, first passage 111 are formed on base bearing 11, and second channel 121 is formed on cylinder 12, and the 3rd
Passage 131 is formed on supplementary bearing 13.Reference picture 1 and Fig. 3, exhaust passage 14 extend vertically through base bearing 11, cylinder 12 and pair
Bearing 13, specifically, first passage 111 runs through base bearing 11, second channel on vertical along the thickness direction of base bearing 11
121 run through cylinder 12 on vertical along the thickness direction of cylinder 12, and third channel 131 is along the thickness direction of supplementary bearing 13 through pair
Bearing 13, first passage 111, second channel 121 and third channel 131 are vertically relative, so that the gas in secondary silencing cavity 31
Body such as refrigerant can successively flow through third channel 131, second channel 121, first passage 111 and enter main silencing cavity from bottom to top
In 41.
As shown in figure 3, the cross-sectional area of first passage 111, second channel 121 and third channel 131 is respectively along its axial direction
Equal everywhere, the shape of cross section of first passage 111 and third channel 131 is circle, and the shape of cross section of second channel 121 is
Long Circle, and the cross-sectional area of second channel 121 is respectively greater than the cross-sectional area of first passage 111 and the horizontal stroke of third channel 131
Sectional area, the first noise reduction filter core 2 is located in second channel 121.Thus, the first noise reduction filter core 2 can with second channel 121 in
Silencing cavity 142 is limited between wall.Or, the cross-sectional area of first passage 111, second channel 121 and third channel 131 may be used also
Be change.
Certainly, the cross-sectional area of second channel 121 can also with first passage 111 and the cross section of third channel 131
Product is equal, now the first noise reduction filter core 2 can be processed into top and bottom and is connected with the inner wall sealing of exhaust passage 14, and the
The middle part of one noise reduction filter core 2 is spaced apart from each other to limit silencing cavity 142 with the inwall of exhaust passage 14.It is appreciated that first
Concrete shape of passage 111, second channel 121 and third channel 131 etc. can according to actual requirement adaptive change, this hair
It is bright that this is not especially limited.
Reference picture 3, the upper end of the first noise reduction filter core 2 contacts with the lower surface of base bearing 11, the lower end of the first noise reduction filter core 2
Upper surface with supplementary bearing 13 contacts, and now the thickness of the first noise reduction filter core 2 height in the vertical direction and cylinder 12 is substantially
It is equal, so as to constituted between the upper end of the first noise reduction filter core 2 and the lower surface of base bearing 11 be tightly connected, the first noise reduction filter core 2
Lower end and the upper surface of supplementary bearing 13 between constitute and be tightly connected.
Further, for example, second channel 121 shape of cross section is for Long Circle and the first noise reduction filter core 2 is tubular
In the case of, when the minimum dimension of the inwall that the peripheral dimension of the first noise reduction filter core 2 is less than second channel 121, the first noise reduction
A silencing cavity 142 is limited between filter core 2 and second channel 121；When the peripheral dimension of the first noise reduction filter core 2 is substantially equal to
During the minimum dimension of the inwall of two passages 121, two for keeping apart are limited between the first noise reduction filter core 2 and second channel 121
Silencing cavity 142.
Certainly, reference picture 4, the upper end of the first noise reduction filter core 2 can also be stretched into first passage 111, and the first noise reduction is filtered
Core 2 is contacted with the inwall of first passage 111, so that between the upper end of the first noise reduction filter core 2 and the inwall of first passage 111
Composition is tightly connected, and the lower end of the first noise reduction filter core 2 is stretched into third channel 131, and the first noise reduction filter core 2 and third channel
131 inwall contact, so that constituted between the lower end of the first noise reduction filter core 2 and the inwall of third channel 131 being tightly connected.
Now the first noise reduction filter core 2 height in the vertical direction is more than the thickness of cylinder 12.Wherein, the first noise reduction filter core 2 can be only
It is fixed on base bearing 11, it is also possible to be only secured on supplementary bearing 13, or is also secured on base bearing 11 and supplementary bearing 13.
Specifically, consolidate as shown in figure 4, being formed with first connected with first passage 111 on the lower surface of base bearing 11
Determine hole, the cross-sectional area of the first fixing hole is more than the cross-sectional area of first passage 111, and the upper end of the first noise reduction filter core 2 can stretch
Enter in the first fixing hole and contacted with the roof of the first fixing hole, similarly, be could be formed with the upper surface of supplementary bearing 13 with
3rd fixing hole of the connection of third channel 131, the cross-sectional area of the cross-sectional area more than third channel 131 of the 3rd fixing hole, the
The lower end of one noise reduction filter core 2 can be stretched into the 3rd fixing hole and be contacted with the bottom wall of the 3rd fixing hole, now first passage 111
Stepped hole is respectively constituted with the first fixing hole, the fixing hole of third channel 131 and the 3rd.Thus, by upper and lower two stepped holes
Thrust, improves the reliability of the installation of the first noise reduction filter core 2.Wherein, it is installed in place with compression mechanism in the first noise reduction filter core 2
Afterwards, the inwall of the first noise reduction filter core 2 can be concordant with the holding of the inwall of first passage 111 and third channel 131.
A specific embodiment of the invention, exhaust passage 14 further includes the first silencing groove and the second silencing groove
At least one of.That is, exhaust passage 14 can only further include the first silencing groove, it is also possible to only further include
Second silencing groove, or the first silencing groove and the second silencing groove are further included simultaneously.Wherein, the first silencing groove is formed in main shaft
Hold on 11 lower surface, and the first silencing groove is directly connected with silencing cavity 142.Second silencing groove is formed in the upper end of supplementary bearing 13
On face, and the second silencing groove is directly connected with silencing cavity 142.
Reference picture 5, the first silencing groove can be formed by a part of upwardly recessed of the lower surface of base bearing 11, the first noise reduction
The downside of groove is opened wide, such that it is able to directly be connected with silencing cavity 142；Second silencing groove can be by the one of the upper surface of supplementary bearing 13
Part is downwardly concaved to be formed, and the upside of the first silencing groove is opened wide, such that it is able to directly be connected with silencing cavity 142.Thus, by setting
The first silencing groove and the second silencing groove are put, the volume of silencing cavity 142 is increased, so as to further improve rotary compressor
100 erasure effect.In addition, the upper and lower ends of the first noise reduction filter core 2 can respectively with base bearing 11 and supplementary bearing 13 on platform
The thrust of rank hole, better reliability.Wherein, stepped hole has been described in detail in the above embodiment of the present invention, will not be repeated here.
Alternatively, the first noise reduction filter core 2 can be formed as tubular.For example in the example of Fig. 8 a and Fig. 8 b, the first noise reduction
Filter core 2 is straight tube, and the shape of cross section of the first noise reduction filter core 2 is circle, and now the first noise reduction filter core 2 is along its axial cross section
Product keeps constant.In the example of Fig. 9 a and Fig. 9 b, the first noise reduction filter core 2 is conical pipe, and the first noise reduction filter core 2 cross section
Be shaped as circle, now the first noise reduction filter core 2 along its axial cross section product gradually change, for example, along in Fig. 9 b from a left side
To right direction, the cross-sectional area of the first noise reduction filter core 2 gradually increases.Or, the cross section shape of the first noise reduction filter core 2 of tubular
Shape can also be oval, Long Circle or polygon etc..
Certainly, the first noise reduction filter core 2 can be formed as tabular, and the outline of the first noise reduction filter core 2 of tabular is logical with exhaust
The inner wall sealing in road 14 connects to limit substantially closed silencing cavity 142 between the inwall of exhaust passage 14.For example, first
Noise reduction filter core 2 can be flat board, or curved slab such as arc or wave-shape board etc..
Further, at least one second noise reduction filter cores 5 can be provided with silencing cavity 142, be formed on the second noise reduction filter core 5
There are multiple second micropores 51, silencing cavity 142 is separated into many sub- silencing cavities 142, each second micropore 51 by the second noise reduction filter core 5
Area be less than or equal to π mm2。
Reference picture 6 simultaneously combines Fig. 7, and two the second noise reduction filter cores 5 for being spaced apart setting are provided with silencing cavity 142, and each the
Two noise reduction filter cores 5 are tabular, two flat second noise reduction filter cores 5 respectively positioned at tubular the first noise reduction filter core 2 a left side
Right both sides, each second noise reduction filter core 5 is respectively formed on multiple second micropores 51 that multiple rows of multiple row is set, and two the second noise reductions
Be separated into silencing cavity 142 between many sub- silencing cavities 142, and many sub- silencing cavities 142 and pass through multiple second micropores 51 by filter core 5
Connection.
Thus, by setting the second noise reduction filter core 5, silencing cavity 142 is separated into many sub- silencing cavities by the second noise reduction filter core 5
142, the resistive enhancing of structure of whole exhaust passage 14, by adjusting the position of the second noise reduction filter core 5, can adjust resonance frequency
Rate, further improves erasure effect.It is appreciated that the number of the second noise reduction filter core 5 and the second micropore 51, specific size and cloth
Putting mode etc. can require and adaptive change that the present invention is not particularly limited to this according to actual noise elimination.
By the volume of appropriate adjustment silencing cavity 142, the thickness of the first noise reduction filter core 2 and the second noise reduction filter core 5, micropore
The area of punching rate (i.e. in the range of perforation field, the gross area of eyelet of perforating accounts for the percentage of whole area) and micropore
Etc. the resonant frequency of silencing cavity 142 is adjusted, such that it is able to realize eliminating the noise of designated frequency band, and the stream of refrigerant will not be increased
Dynamic resistance, influence to the performance of rotary compressor 100 also very little.
For example, the thickness of the first noise reduction filter core 2 is preferably smaller than equal to 3mm.The area sum of multiple micropores is S1, and first disappears
The area of sound filter core 2 is S2, and wherein S1, S2 meets：S1/S2≤5%, now punching rate≤5% of micropore.
According to a further embodiment of the invention, acoustic element such as silencing cotton etc. can be filled in silencing cavity 142, thus,
Erasure effect can further be improved.
Thus, by using rotary compressor 100 according to embodiments of the present invention, rotary pressure can further be reduced
The noise of contracting machine 100, and it is smaller to the performance impact of rotary compressor 100.
Other of rotary compressor 100 according to embodiments of the present invention constitute such as motor etc. and operation for ability
All it is known for field technique personnel, is not detailed herein.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " illustrative examples ",
The description of " example ", " specific example " or " some examples " etc. means to combine specific features, the knot that the embodiment or example are described
Structure, material or feature are contained at least one embodiment of the invention or example.In this manual, to above-mentioned term
Schematic representation is not necessarily referring to identical embodiment or example.And, the specific features of description, structure, material or spy
Point can in an appropriate manner be combined in one or more any embodiments or example.
Although an embodiment of the present invention has been shown and described, it will be understood by those skilled in the art that：Not
Can these embodiments be carried out with various changes, modification, replacement and modification in the case of departing from principle of the invention and objective, this
The scope of invention is limited by claim and its equivalent.
Claims (13)
1. a kind of rotary compressor, it is characterised in that including：
Compression mechanism, the compression mechanism includes base bearing, cylinder and supplementary bearing, and the base bearing is located at the top of the cylinder
Portion, the supplementary bearing is located at the bottom of the cylinder, and compression is limited between the base bearing, the cylinder and the supplementary bearing
Chamber, is formed with exhaust outlet on the supplementary bearing, the exhaust passage connected with the exhaust outlet, institute are formed with the compression mechanism
Exhaust passage is stated through the base bearing, the cylinder and the supplementary bearing；With
First noise reduction filter core, the first noise reduction filter core is located in the exhaust passage, and the first noise reduction filter core is by the row
Gas channel partition is formed with multiple first micropores, the major flow into main flow cavity and silencing cavity on the first noise reduction filter core
Chamber is connected by the multiple first micropore with the silencing cavity, and the area of each first micropore is less than or equal to π mm2, institute
The top and bottom for stating the first noise reduction filter core are connected with the passageway seals.
2. rotary compressor according to claim 1, it is characterised in that the exhaust passage include being sequentially communicated the
To third channel, the first passage is formed on base bearing one passage, and the second channel is formed on cylinder, and the described 3rd
Passage is formed on supplementary bearing, and the cross-sectional area of the second channel is transversal more than the first passage and the third channel
Area, wherein the first noise reduction filter core is located in the second channel.
3. rotary compressor according to claim 2, it is characterised in that the upper end of the first noise reduction filter core with it is described
The lower surface contact of base bearing, the lower end of the first noise reduction filter core contacts with the upper surface of the supplementary bearing.
4. rotary compressor according to claim 2, it is characterised in that stretch into institute in the upper end of the first noise reduction filter core
State in first passage and contacted with the inwall of the first passage, the third channel is stretched into the lower end of the first noise reduction filter core
It is interior and contacted with the inwall of the third channel.
5. rotary compressor according to claim 2, it is characterised in that the exhaust passage further includes that first disappears
At least one of sound groove and the second silencing groove, wherein first silencing groove be formed on the lower surface of base bearing and with it is described
Silencing cavity is directly connected, and second silencing groove is formed on the upper surface of supplementary bearing and is directly connected with the silencing cavity.
6. rotary compressor according to claim 1, it is characterised in that the first noise reduction filter core be formed as tubular or
Tabular.
7. rotary compressor according to claim 6, it is characterised in that when the first noise reduction filter core is formed as tubular
When, the first noise reduction filter core is straight tube or conical pipe.
8. rotary compressor according to claim 6, it is characterised in that when the first noise reduction filter core is formed as tabular
When, the first noise reduction filter core is flat board or arc.
9. rotary compressor according to claim 1, it is characterised in that filling acoustic element in the silencing cavity.
10. rotary compressor according to claim 1, it is characterised in that the thickness of the first noise reduction filter core is less than
Equal to 3mm.
11. rotary compressors according to claim 1, it is characterised in that the area sum of the multiple micropore is S1,
The area of the first noise reduction filter core is S2, wherein described S1, S2 meet：S1/S2≤5%.
12. rotary compressors according to claim 1, it is characterised in that at least one are provided with the silencing cavity
Two noise reduction filter cores, are formed with multiple second micropores on the second noise reduction filter core, the second noise reduction filter core is by the silencing cavity
Many sub- silencing cavities are separated into, the area of each second micropore is less than or equal to π mm2。
13. rotary compressor according to any one of claim 1-12, it is characterised in that each described first micropore
It is circular port, slotted eye, Long Circle hole or polygonal hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410779069.9A CN104500402B (en) | 2014-12-16 | 2014-12-16 | Rotary compressor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410779069.9A CN104500402B (en) | 2014-12-16 | 2014-12-16 | Rotary compressor |
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| Publication Number | Publication Date |
|---|---|
| CN104500402A CN104500402A (en) | 2015-04-08 |
| CN104500402B true CN104500402B (en) | 2017-05-31 |
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| CN201410779069.9A Active CN104500402B (en) | 2014-12-16 | 2014-12-16 | Rotary compressor |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016165114A1 (en) * | 2015-04-16 | 2016-10-20 | 广东美芝制冷设备有限公司 | Rotary compressor |
| CN105804974B (en) * | 2016-05-11 | 2018-04-06 | 珠海凌达压缩机有限公司 | Compressor pump body structure, compressor and air conditioner |
| CN113638862A (en) * | 2021-09-08 | 2021-11-12 | 松下·万宝(广州)压缩机有限公司 | Compressor pump body and compressor |
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| JPS5454309A (en) * | 1977-10-07 | 1979-04-28 | Hitachi Ltd | Silencer for use in a displacement fluid machine |
| JPH04350387A (en) * | 1991-05-27 | 1992-12-04 | Daikin Ind Ltd | Rotary compressor |
| JPH08277788A (en) * | 1995-04-05 | 1996-10-22 | Toshiba Corp | Rotary compressor |
| CN1715673A (en) * | 2004-06-28 | 2006-01-04 | 乐金电子(天津)电器有限公司 | Rotary compressor with noise reducer |
| JP3840578B2 (en) * | 2004-12-09 | 2006-11-01 | ダイキン工業株式会社 | Compressor |
| CN1676938A (en) * | 2005-05-31 | 2005-10-05 | 西安庆安制冷设备股份有限公司 | Rotary dual-cylinder compressor using exhaust middle partition board |
| CN203516001U (en) * | 2013-09-18 | 2014-04-02 | 潍柴动力股份有限公司 | Air suction pressure-stabilizing sound-reducing element for air compressor |
| CN204312353U (en) * | 2014-12-16 | 2015-05-06 | 广东美芝制冷设备有限公司 | Rotary compressor |
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