CN104454548B - Rotary compressor - Google Patents
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- CN104454548B CN104454548B CN201410823166.3A CN201410823166A CN104454548B CN 104454548 B CN104454548 B CN 104454548B CN 201410823166 A CN201410823166 A CN 201410823166A CN 104454548 B CN104454548 B CN 104454548B
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Abstract
The invention discloses a rotary compressor which comprises a shell, a compression mechanism and two silencers, wherein the compression mechanism comprises an air cylinder and two bearings, the two bearings are respectively arranged at the top and bottom of the cylinder, a compression cavity is defined between the two bearings and the air cylinder, and a vent hole communicated with the compression cavity is formed in one of the two bearings; the two silencers are respectively arranged on one sides, far away from the air cylinder, of the corresponding bearings, a silencing cavity is defined between the corresponding bearings, a communication channel is formed in the compression mechanism, one end of the communication channel is communicated with a silencing cavity defined between the other one of the two bearings and the corresponding silencer, the other end of the communication channel is communicated with a silencing cavity defined between one of the two bearings and the corresponding silencer, or is communicated with the interior of the shell. According to the rotary compressor, the pressure pulse and noise of refrigerant discharged from the compression cavity can be effectively lowered, and the running reliability of the rotary compressor can be enhanced.
Description
Technical field
The present invention relates to compressor manufacturing technical field, especially relate to a kind of rotary compressor.
Background technology
Point out in correlation technique, the pressurized gas refrigerant of rotary compressor after the air vent of base bearing is discharged, strongly
Pulse pneumatic can enter in the acoustic filter being located on base bearing, then discharged by the steam vent on this deafener.
However, the pressure fluctuation of pressurized gas refrigerant is not decayed effectively, it is expelled directly out rotary compressor
Rotary compressor reliability of operation will be unfavorable for, the pulsations problem of itself and air conditioning system can be caused simultaneously,
Especially amplitude of pressure fluctuation is bigger, and noise problem is more prominent.
Content of the invention
It is contemplated that at least solving one of technical problem present in prior art.For this reason, one object of the present invention
It is to propose a kind of rotary compressor, the structure of described rotary compressor is simple.
Rotary compressor according to embodiments of the present invention, comprising: housing；Compression mechanism, described compression mechanism is located at institute
State in housing, described compression mechanism includes cylinder and two bearings, described two bearings be respectively provided at described cylinder top and
Compression chamber is limited, the one of upper formation in described two bearings between bottom, and described two bearing and described cylinder
There is the air vent connecting with described compression chamber；And two deafeners, described two deafeners are respectively provided at corresponding described axle
The side away from cylinder held and limit silencing cavity between corresponding described bearing, wherein said compression mechanism is formed with
Communicating passage, one end of described communicating passage is limited between corresponding described deafener with another in described two bearings
The described silencing cavity connection that goes out and the other end and described one of them and the corresponding described deafener in described two bearings it
Between the described silencing cavity that limits or the connection of described enclosure interior.
Rotary compressor according to embodiments of the present invention, by setting and no air vent bearing and corresponding deafener it
Between limit silencing cavity connection communicating passage, can effectively reduce from compression intracavity discharge coolant pressure fluctuation, from
And improve rotary compressor reliability of operation, and reduce noise.In addition, the structure of rotary compressor is simply closed
Reason.
Specifically, described communicating passage includes the first passage being sequentially communicated to third channel, described first passage and institute
State third channel to be respectively formed on described two bearings, described second channel is formed on described cylinder, described first passage
Free end and described silencing cavity connection of limiting between corresponding described deafener of another in described two bearings,
The free end of described third channel and the described one of restriction between corresponding described deafener in described two bearings
The described silencing cavity going out or the connection of described enclosure interior.
Alternatively, the cross-sectional area of described second channel is more than the cross section of described first passage and described third channel
Long-pending.
Further, described compression mechanism is formed with least one holding tank, described holding tank with described two axles
The described described silencing cavity connection that another is limited between corresponding described deafener held.
Specifically, described cylinder is formed with the first receiving hole of insertion, described in described two bearings is on another
It is formed with the second receiving hole of insertion, described second receiving hole is connected with described first receiving hole, described first receiving hole, described
Described holding tank is limited between described one of in second receiving hole and described two bearing.
Alternatively, one of them in described two bearings is formed with towards the recessed noise reduction in the direction of described cylinder
Groove, limits described silencing cavity between described silencing groove and corresponding described deafener.
Alternatively, described deafener is slab construction.
Alternatively, described air vent is formed on the described bearing being located at described cylinder bottom, shape in described compression mechanism
Become to have exhaust passage, the two ends of described exhaust passage are connected with described air vent and described enclosure interior respectively.
Alternatively, described communicating passage is multiple and the plurality of communicating passage is spaced apart from each other setting.
The additional aspect of the present invention and advantage will be set forth in part in the description, and partly will become from the following description
Obtain substantially, or recognized by the practice of the present invention.
Brief description
The above-mentioned and/or additional aspect of the present invention and advantage will become from reference to the description to embodiment for the accompanying drawings below
Substantially and easy to understand, wherein:
Fig. 1 is the schematic diagram of the rotary compressor according to first embodiment of the invention；
Fig. 2 is the schematic diagram of the rotary compressor according to second embodiment of the invention；
Fig. 3 is the schematic diagram of the rotary compressor according to third embodiment of the invention；
Fig. 4 is the schematic diagram of the rotary compressor according to four embodiment of the invention；
Fig. 5 is the schematic diagram of the rotary compressor according to fifth embodiment of the invention.
Reference:
100: rotary compressor；
21: cylinder；211: compression chamber；
22: base bearing；221: air vent；23: supplementary bearing；
24: communicating passage；241: first passage；242: second channel；243: third channel；
25: holding tank；26: exhaust passage；
31: main deafener；311: main silencing cavity；312: steam vent；
32: secondary deafener；321: secondary silencing cavity.
Specific embodiment
Embodiments of the invention are described below in detail, the example of described embodiment is shown in the drawings, wherein from start to finish
The element that same or similar label represents same or similar element or has same or like function.Below with reference to attached
The embodiment of figure description is exemplary, is only used for explaining the present invention, and is not considered as limiting the invention.
In describing the invention it is to be understood that term " " center ", " horizontal ", " length ", " width ", " thickness ",
" on ", D score, "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outward ", " axial ", " radially ", " circumferential " etc.
The orientation indicating or position relationship are based on orientation shown in the drawings or position relationship, are for only for ease of the description present invention and Jian
Change description, rather than instruction or the hint device of indication or element must have specific orientation, with specific azimuth configuration and
Operation, is therefore not considered as limiting the invention.
Additionally, term " first ", " second " are only used for describing purpose, and it is not intended that indicating or hint relative importance
Or the implicit quantity indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can express or
Implicitly include one or more this feature.In describing the invention, unless otherwise stated, " multiple " are meant that two
Individual or two or more.
In describing the invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or is integrally connected；Can
To be to be joined directly together it is also possible to be indirectly connected to by intermediary, it can be the connection of two element internals.For this area
For those of ordinary skill, above-mentioned term concrete meaning in the present invention can be understood with concrete condition.
Below with reference to Fig. 1-Fig. 5, rotary compressor 100 according to embodiments of the present invention is described.Rotary compressor 100
It can be single cylinder compressor.In the application explained below, so that rotary compressor 100 is as single cylinder compressor as a example said
Bright.Certainly, those skilled in the art are appreciated that rotary compressor 100 can also be multicylinder compressor such as twin-tub
Compressor etc..
As Figure 1-Figure 5, rotary compressor 100 such as single cylinder compressor according to embodiments of the present invention, including shell
Body (not shown), compression mechanism and two deafeners.
Compression mechanism is located in housing, and specifically, compression mechanism includes cylinder 21 and two bearings, and two bearings are permissible
It is referred to as base bearing 22 and supplementary bearing 23, wherein, the bearing being located at the top of cylinder 21 is base bearing 22, and is located at cylinder 21
Bottom bearing be supplementary bearing 23, limit the compression for compression refrigerant between base bearing 22, supplementary bearing 23 and cylinder 21
Chamber 211.
Two deafeners are respectively provided at the side away from cylinder 21 of corresponding bearing, and two deafeners may be respectively referred to as
Main deafener 31 and secondary deafener 32, main deafener 31 is located on base bearing 22, and secondary deafener 32 is located on supplementary bearing 23, its
In, the silencing cavity limiting between main deafener 31 and base bearing 22 is properly termed as main silencing cavity 311, secondary deafener 32 and countershaft
Hold the silencing cavity limiting between 23 and be properly termed as secondary silencing cavity 321.
Base bearing 22 is formed with, with one of them in supplementary bearing 23, the air vent 221 connecting with compression chamber 211, to arrange
Go out the coolant after compression in compression chamber 211.For example, when air vent 221 is formed on base bearing 22, reference picture 1- Fig. 4, master disappears
The steam vent 312 being connected with main silencing cavity 311 is formed with sound device 31, thus the coolant after compression in compression chamber 211 can be through
Enter in main silencing cavity 311 by the air vent 221 on base bearing 22, the coolant in main silencing cavity 311 passes through steam vent 312 again
Enter into enclosure interior, and (not shown) discharge of final exhaustor from housing.
When air vent 221 is formed on supplementary bearing 23, with reference to Fig. 5, compression mechanism is formed with exhaust passage 26, aerofluxuss
Passage 26 extends vertically through base bearing 22, cylinder 21 and supplementary bearing 23, the two ends of exhaust passage 26 respectively with this air vent 221 and
Enclosure interior connects, and wherein, the lower end of exhaust passage 26 is connected with secondary silencing cavity 321, in the upper end of exhaust passage 26 and housing
Portion directly connects, thus the coolant after compression in compression chamber 211 can enter into pair via the air vent 221 on supplementary bearing 23 and disappear
In sound chamber 321, the coolant in secondary silencing cavity 321 enters into enclosure interior by exhaust passage 26 again, and finally from housing
Exhaustor is discharged.
Wherein, compression mechanism is formed with communicating passage 24, one end (for example, the lower end in Fig. 1) of communicating passage 24 with
Another silencing cavity limiting between corresponding deafener connection in two bearings and the other end of communicating passage 24
(for example, the upper end in Fig. 1) and the above-mentioned one of silencing cavity limiting between corresponding deafener in two bearings
Or enclosure interior connection.
For example, as Figure 1-Figure 4, the two ends of communicating passage 24 are connected with main silencing cavity 311 and secondary silencing cavity 321 respectively
Logical, so the part from the coolant that the air vent 221 of base bearing 22 enters in main silencing cavity 311 is from main deafener 31
Steam vent 312 is discharged, and a part is entered in secondary silencing cavity 321 by communicating passage 24, and after air vent 221 cuts out, main
Pressure in silencing cavity 311 is less, and now the coolant in secondary silencing cavity 321 can enter into main silencing cavity by communicating passage 24
In 311, and the steam vent 312 from main deafener 31 is discharged, thus significantly reducing pressure fluctuation, and reduces noise.
As shown in figure 5, the two ends of communicating passage 24 are connected with main silencing cavity 311 and secondary silencing cavity 321 respectively, so from pair
The part that the air vent 221 of bearing 23 enters in the coolant in secondary silencing cavity 321 is discharged by exhaust passage 26, a part
Entered in main silencing cavity 311 by communicating passage 24, and after air vent 221 cuts out, the pressure in secondary silencing cavity 321 is relatively
Little, now the coolant in main silencing cavity 311 can be entered in secondary silencing cavity 321 by communicating passage 24 and pass through exhaust passage
26 discharges, reduce pressure fluctuation such that it is able to effective, and reduce noise.
Certainly, the two ends of communicating passage 24 can also respectively with main silencing cavity 311 and secondary silencing cavity 321 in one of
Connect (not shown) with enclosure interior.For example, when air vent 221 is formed on base bearing 22 and the two ends of communicating passage 24
When connecting with secondary silencing cavity 321 and enclosure interior respectively, enter in main silencing cavity 311 from the air vent 221 of base bearing 22
Coolant is all discharged from the steam vent 312 of main deafener 31, enters into a part in the coolant of enclosure interior from housing
Exhaustor is discharged, and a part is entered in secondary silencing cavity 321 by communicating passage 24, and after air vent 221 cuts out, in housing
The pressure in portion is less, and now the coolant in secondary silencing cavity 321 can be entered in housing and from housing by communicating passage 24
Exhaustor discharge, thus significantly reducing pressure fluctuation, and reduce noise.
Alternatively, communicating passage 24 can also be multiple, and multiple communicating passage 24 is spaced apart from each other setting, with further
Reduce the pressure fluctuation of coolant.Communicating passage 24 is preferably one or two.It is appreciated that the number of communicating passage 24 and
Arrangement in compression mechanism etc. can according to actual requirement adaptive change, the present invention is not especially limited to this.
Rotary compressor 100 such as single cylinder compressor according to embodiments of the present invention, by setting and no air vent axle
Hold the communicating passage 24 of the silencing cavity connection limiting between corresponding deafener, can effectively reduce in compression chamber 211
The pressure fluctuation of the coolant discharged, thus improve rotary compressor 100 such as single cylinder compressor reliability of operation, and drops
Low noise.In addition, rotary compressor 100 is simple and reasonable.
According to a specific embodiment of the present invention, the first passage 241, second that communicating passage 24 includes being sequentially communicated leads to
Road 242 and third channel 243, first passage 241 and third channel 243 are respectively formed on two bearings, second channel 242 shape
Become on cylinder 21, the free end (for example, the lower end in Fig. 1) of first passage 241 with two bearings another with corresponding
Deafener between the silencing cavity connection that limits, the free end (for example, the upper end in Fig. 1) of third channel 243 and two axles
The above-mentioned one of silencing cavity limiting between corresponding deafener held or enclosure interior connection.
As Figure 1-Figure 5, communicating passage 24 extends vertically through cylinder 21, base bearing 22 and supplementary bearing 23, specifically,
First passage 241 runs through supplementary bearing 23 in the perpendicular thickness direction upwardly along supplementary bearing 23, and second channel 242 is perpendicular upwardly along cylinder
21 thickness direction runs through cylinder 21, and third channel 243 runs through base bearing 22, first passage along the thickness direction of base bearing 22
241st, second channel 242 and third channel 243 be vertically relative, thus in main silencing cavity 311 and secondary silencing cavity 321 wherein
Gas in one such as coolant can be smoothly through communicating passage 24 and flow in main silencing cavity 311 and secondary silencing cavity 321
Another in, and easy to process, thus reducing cost.
Alternatively, the cross-sectional area of second channel 242 is more than the cross-sectional area of first passage 241 and third channel 243.As
Shown in Fig. 2, the cross-sectional area of first passage 241, second channel 242 and third channel 243 is axially equal everywhere along it respectively, and
The cross-sectional area of second channel 242 is respectively greater than the cross-sectional area of first passage 241 and the cross-sectional area of third channel 243, by
This, can reduce pressure fluctuation and the noise of rotary compressor 100 further, improves rotary compressor 100 further
Efficiency.
Certainly, the cross-sectional area of second channel 242 can also gradually change.For example, second channel 242 with first
One end cross-sectional area that the cross-sectional area of one end of passage 241 connection is connected with second channel 242 with first passage 241 is permissible
Roughly equal, the cross-sectional area of the one end connecting with third channel 243 of second channel 242 and third channel 243 and second
One end cross-sectional area of passage 242 connection can be roughly equal, second channel 242 can be configured to along its axially from it with the
The direction cross-sectional area of one end that one end of one passage 241 connection is connected towards it with second channel 242 is first gradually increased, after by
Decrescence little.
According to a further embodiment of the invention, compression mechanism is formed with least one holding tank 25, holding tank 25 with
With the above-mentioned silencing cavity that another is limited between the corresponding deafener connection in two bearings.It is formed with cylinder 21 and pass through
The first logical receiving hole, above-mentioned one of in two bearings be formed with the second receiving hole of insertion, the second receiving hole with
First receiving hole connection, limits above-mentioned between above-mentioned one of in the first receiving hole, the second receiving hole and two bearings
Holding tank 25.
For example, referring to Fig. 3, the first receiving hole is vertically extending and thickness direction of along cylinder 21 runs through cylinder 21, and second
Receiving hole is vertically extending and thickness direction of along supplementary bearing 23 runs through supplementary bearing 23, and the first receiving hole and the second receiving hole are upper and lower
Relatively, above-mentioned holding tank 25, holding tank 25 and secondary noise reduction are limited between the first receiving hole and the second receiving hole and base bearing 22
Chamber 321 connects, thus increased the volume of secondary silencing cavity 321, equally can play the effect reducing pressure fluctuation and noise.Can
To understand, the number of holding tank 25 can according to actual requirement adaptive change, the present invention is not especially limited to this.
According to an alternative embodiment of the present invention, one of them in two bearings is formed with the side towards cylinder 21
To recessed silencing groove, between silencing groove and corresponding deafener, limit silencing cavity.For example, as shown in figure 4, silencing groove is by pair
The a part of upwardly recessed formation of the lower surface of bearing 23, silencing groove is generally ring-shaped, and alternatively, deafener is slab construction,
Flat deafener is located at the bottom of supplementary bearing 23 and jointly limits above-mentioned pair silencing cavity 321 with silencing groove.
Certainly, silencing groove can also be downwardly concaved by a part for the upper surface of base bearing 22 and be formed, and silencing groove is generally
Ring-type, alternatively, deafener is slab construction, and flat deafener is located at the bottom of base bearing 22 and is jointly limited with silencing groove
Make above-mentioned main silencing cavity 311 (not shown).
Rotary compressor 100 such as single cylinder compressor according to embodiments of the present invention, improves rotary compressor 100
The efficiency of such as single cylinder compressor.
Other of rotary compressor 100 according to embodiments of the present invention constitute such as motor etc. and operation for ability
It is all known for field technique personnel, be not detailed herein.
In the description of this specification, reference term " embodiment ", " some embodiments ", " illustrative examples ",
The description of " example ", " specific example " or " some examples " etc. means specific features, the knot describing with reference to this embodiment or example
Structure, material or feature are contained at least one embodiment or the example of the present invention.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 combine in any one or more embodiments or example in an appropriate manner.
Although an embodiment of the present invention has been shown and described, it will be understood by those skilled in the art that: not
Multiple changes, modification, replacement and modification can be carried out to these embodiments in the case of the principle of the disengaging present invention and objective, this
The scope of invention is limited by claim and its equivalent.
Claims (9)
1. a kind of rotary compressor is it is characterised in that include:
Housing；
Compression mechanism, described compression mechanism is located in described housing, and described compression mechanism includes cylinder and two bearings, and described two
Individual bearing is respectively provided at top and the bottom of described cylinder, and limits compression chamber between described two bearing and described cylinder,
It is formed with, in one of them in described two bearings, the air vent connecting with described compression chamber；And
Two deafeners, described two deafeners be respectively provided at corresponding described bearing the side away from cylinder and with corresponding
Silencing cavity is limited between described bearing,
Communicating passage is formed with wherein said compression mechanism, another in one end of described communicating passage and described two bearings
Described in the individual described silencing cavity connection limiting and corresponding described deafener between and the other end and described two bearings
One of described silencing cavity limiting between corresponding described deafener or the connection of described enclosure interior, from described aerofluxuss
The part coolant that mouth is discharged is suitable in one end and the described two bearings entered described communicating passage by described communicating passage
Institute is entered after the described described silencing cavity that another is limited between corresponding described deafener, again by described communicating passage
State described one of described silencing cavity limiting between corresponding described deafener or the described housing in two bearings
Internal.
2. rotary compressor according to claim 1 is it is characterised in that described communicating passage includes being sequentially communicated
To third channel, described first passage and described third channel are respectively formed on described two bearings one passage, and described second
Passage is formed on described cylinder, and the free end of described first passage is described with corresponding with another in described two bearings
The described silencing cavity connection limiting between deafener, in the free end of described third channel and described two bearings described its
In a described silencing cavity limiting between corresponding described deafener or described enclosure interior connection.
3. rotary compressor according to claim 2 is it is characterised in that the cross-sectional area of described second channel is more than institute
State first passage and the cross-sectional area of described third channel.
4. rotary compressor according to claim 1 is it is characterised in that be formed with least one in described compression mechanism
Holding tank, described holding tank and the described institute that another is limited between corresponding described deafener in described two bearings
State silencing cavity connection.
5. rotary compressor according to claim 4 is it is characterised in that be formed with the first appearance of insertion on described cylinder
Receive hole, described the second receiving hole that insertion is formed with another in described two bearings, described second receiving hole with described
First receiving hole connection, in described first receiving hole, described second receiving hole and described two bearing described one of it
Between limit described holding tank.
6. rotary compressor according to claim 1 is it is characterised in that one of them in described two bearing goes up shape
Become to have towards the recessed silencing groove in the direction of described cylinder, limit described between described silencing groove and corresponding described deafener
Silencing cavity.
7. rotary compressor according to claim 6 is it is characterised in that described deafener is slab construction.
8. rotary compressor according to claim 1 is located at described cylinder it is characterised in that described air vent is formed at
On the described bearing of bottom, described compression mechanism is formed with exhaust passage, the two ends of described exhaust passage respectively with described row
QI KOU connects with described enclosure interior.
9. the rotary compressor according to any one of claim 1-8 is it is characterised in that described communicating passage is multiple
And the plurality of communicating passage is spaced apart from each other setting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410823166.3A CN104454548B (en) | 2014-12-22 | 2014-12-22 | Rotary compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410823166.3A CN104454548B (en) | 2014-12-22 | 2014-12-22 | Rotary compressor |
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| CN104454548A CN104454548A (en) | 2015-03-25 |
| CN104454548B true CN104454548B (en) | 2017-02-01 |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104776029A (en) * | 2015-04-16 | 2015-07-15 | 广东美芝制冷设备有限公司 | Rotary compressor |
| WO2016165114A1 (en) * | 2015-04-16 | 2016-10-20 | 广东美芝制冷设备有限公司 | Rotary compressor |
| CN105673509A (en) * | 2016-03-21 | 2016-06-15 | 珠海凌达压缩机有限公司 | Pump body, rotary roller compressor and air conditioner |
| US10180140B2 (en) | 2016-09-30 | 2019-01-15 | Ingersoll-Rand Company | Pulsation damper for compressors |
| JP6801391B2 (en) * | 2016-11-17 | 2020-12-16 | 株式会社富士通ゼネラル | Rotary compressor |
| CN109595168B (en) * | 2017-09-30 | 2024-06-11 | 广东美芝制冷设备有限公司 | Compressor with a compressor body having a rotor with a rotor shaft |
| CN112343823B (en) * | 2019-08-08 | 2022-10-11 | 安徽美芝精密制造有限公司 | Compression mechanism and compressor |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3350276B2 (en) * | 1994-12-28 | 2002-11-25 | 東芝キヤリア株式会社 | Rotary compressor |
| CN2753905Y (en) * | 2004-04-26 | 2006-01-25 | 上海日立电器有限公司 | Compressor bypass exhaust structure |
| TWI363137B (en) * | 2004-07-08 | 2012-05-01 | Sanyo Electric Co | Compression system, multicylinder rotary compressor, and refrigeration apparatus using the same |
| KR20060024739A (en) * | 2004-09-14 | 2006-03-17 | 삼성전자주식회사 | Multi-cylinder type compressor |
| JP2007132226A (en) * | 2005-11-09 | 2007-05-31 | Sanyo Electric Co Ltd | Rotary compressor |
| JP2012167584A (en) * | 2011-02-14 | 2012-09-06 | Panasonic Corp | Hermetic compressor |
| CN203500026U (en) * | 2013-09-23 | 2014-03-26 | 广东美芝制冷设备有限公司 | Rotary compressor |
| CN204371688U (en) * | 2014-12-22 | 2015-06-03 | 广东美芝制冷设备有限公司 | Rotary compressor |
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