CN104500402A - Rotary compressor - Google Patents
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- CN104500402A CN104500402A CN201410779069.9A CN201410779069A CN104500402A CN 104500402 A CN104500402 A CN 104500402A CN 201410779069 A CN201410779069 A CN 201410779069A CN 104500402 A CN104500402 A CN 104500402A
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- filter core
- reduction filter
- rotary compressor
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Abstract
The invention discloses a rotary compressor. The rotary compressor comprises a compression mechanism and a first muffling filter core, wherein the compression mechanism comprises a main bearing, an air cylinder and a supplementary bearing, the main bearing is arranged at the top of the air cylinder, the supplementary bearing is arranged at the bottom of the air cylinder, a compression chamber is defined among the main bearing, the air cylinder and the supplementary bearing, an air exhaust opening is formed in the supplementary bearing, and an air exhaust passage communicated with the air exhaust opening is formed in the compression mechanism and penetrates through the main bearing, the air cylinder and the supplementary bearing; the first muffling filter core is arranged in the air exhaust passage, the air exhaust passage is partitioned into a main flowing cavity and a muffling cavity by the first muffling filter core, a plurality of first micropores are formed in the first muffling filter core, the main flowing cavity is communicated with the muffling cavity through the first micropores, and the area of each first micropore is smaller than or equal to pi mm<2>. According to the rotary compressor disclosed by the invention, muffling can be realized, and the influence on the performance of the rotary compressor is low.
Description
Technical field
The present invention relates to Compressor Manufacturing technical field, especially relate to a kind of rotary compressor.
Background technique
Point out in correlation technique, pressurized gas refrigerant is discharged from the relief opening of bearing, forms strong acoustic pressure wave, and a part of sonic impinging is in the baffler be located on bearing, consume part energy because of changes of section, another part is propagated with refrigerant flowing with the form of pressure wave.Traditional compressing mechanism noise reduction mainly through arranging expansion silencing apparatus after exhaust incision arranges resonant chamber or the relief opening at bearing, but these noise elimination structures more or less exist certain impact to the performance of rotary compressor, and noise dampening efficiency is limited.
Summary of the invention
The present invention is intended at least to solve one of technical problem existed in prior art.For this reason, one object of the present invention is to propose a kind of rotary compressor, and the noise of described rotary compressor is little.
According to the rotary compressor of the embodiment of the present invention, comprise: compressing mechanism, described compressing mechanism comprises main bearing, cylinder and supplementary bearing, described main bearing is located at the top of described cylinder, described supplementary bearing is located at the bottom of described cylinder, described main bearing, between described cylinder and described supplementary bearing, limit compression chamber, described supplementary bearing is formed with relief opening, described compressing mechanism is formed with the exhaust passage be communicated with described relief opening, described main bearing, described cylinder and described supplementary bearing are run through in described exhaust passage; With the first noise reduction filter core, described first noise reduction filter core is located in described exhaust passage, described exhaust passage is separated into main flow cavity and silencing cavity by described first noise reduction filter core, described first noise reduction filter core is formed with multiple first micropore, described main flow cavity is communicated with described silencing cavity by described multiple first micropore, and the area of each described first micropore is less than or equal to π mm
2.
According to the rotary compressor of the embodiment of the present invention, by arranging the first noise reduction filter core with multiple first micropore, and the first noise reduction filter core with limit the noise elimination cavity be communicated with main flow cavity between exhaust passage, can noise reduction be realized, and little to the performance impact of rotary compressor.
Further, the top and bottom of described first noise reduction filter core are connected with described passageway seals.
Particularly, described exhaust passage comprises the first passage that is communicated with successively to third channel, described first passage is formed on main bearing, described second channel is formed on cylinder, described third channel is formed on supplementary bearing, the cross-section area of described second channel is greater than the cross-section area of described first passage and described third channel, and wherein said first noise reduction filter core is located in described second channel.
Alternatively, the upper end of described first noise reduction filter core contacts with the lower end surface of described main bearing, and the lower end of described first noise reduction filter core contacts with the upper-end surface of described supplementary bearing.
Or alternatively, the upper end of described first noise reduction filter core to stretch in described first passage and with the contact internal walls of described first passage, the lower end of described first noise reduction filter core to stretch in described third channel and with the contact internal walls of described third channel.
Further, described exhaust passage comprises at least one in the first silencing groove and the second silencing groove further, the lower end surface that wherein said first silencing groove is formed in main bearing is directly communicated with described silencing cavity, the upper-end surface that described second silencing groove is formed in supplementary bearing is directly communicated with described silencing cavity.
Alternatively, described first noise reduction filter core is formed as tubular or tabular.
Further alternatively, when described first noise reduction filter core is formed as tubular, described first noise reduction filter core is straight tube or conical pipe.
Further alternatively, when described first noise reduction filter core is formed as tabular, described first noise reduction filter core is dull and stereotyped or arc plate.
Alternatively, noise reduction part is filled in described silencing cavity.
Alternatively, the thickness of described first noise reduction filter core is less than or equal to 3mm.
Alternatively, the area sum of described multiple micropore is S1, and the area of described first noise reduction filter core is S2, and wherein said S1, S2 meet: S1/S2≤5%.
Alternatively, at least one second noise reduction filter core is provided with in described silencing cavity, described second noise reduction filter core is formed with multiple second micropore, and described silencing cavity is separated into multiple sub-silencing cavity by described second noise reduction filter core, and the area of each described second micropore is less than or equal to π mm
2.
Alternatively, each described first micropore is circular port, slotted eye, long-round-shape hole or polygonal hole.
Additional aspect of the present invention and advantage will part provide in the following description, and part will become obvious from the following description, or be recognized by practice of the present invention.
Accompanying drawing explanation
Above-mentioned and/or additional aspect of the present invention and advantage will become obvious and easy understand from accompanying drawing below combining to the description of embodiment, wherein:
Fig. 1 is the explosive view of the rotary compressor according to the embodiment of the present invention;
Fig. 2 is the assembling schematic diagram of the rotary compressor according to the embodiment 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 another embodiment of the present invention;
Fig. 6 is the assembling schematic diagram of the rotary compressor according to another embodiment of the present invention;
Fig. 7 is the sectional view of the rotary compressor shown in Fig. 6;
Fig. 8 a is the stereogram of the first noise reduction filter core according to the embodiment of the present invention;
Fig. 8 b is the sectional drawing of the first noise reduction filter core shown in Fig. 8 a;
Fig. 9 a is the stereogram of the first noise reduction filter core in accordance with another embodiment of the present invention;
Fig. 9 b is the sectional drawing of the first noise reduction filter core shown in Fig. 9 a;
Figure 10 is the sectional drawing of the first noise reduction filter core according to another embodiment of the present invention;
Figure 11 is the sectional drawing of the first noise reduction filter core according to another embodiment of the present invention.
Reference character:
100: rotary compressor;
11: main 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: the first noise reduction filter cores; 21: the first micropores;
3: secondary baffler; 31: secondary silencing cavity; 4: main baffler; 41: main silencing cavity;
5: the second noise reduction filter cores; 51: the second micropores.
Embodiment
Be described below in detail embodiments of the invention, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Being exemplary below by the embodiment be described with reference to the drawings, only for explaining the present invention, and can not limitation of the present invention being interpreted as.
In describing the invention, it will be appreciated that, term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ", " thickness ", " on ", D score, " left side ", " right side ", " vertically ", " level ", " top ", " end ", " interior ", " outward ", " axis ", " radial direction ", orientation or the position relationship of the instruction such as " circumference " are based on orientation shown in the drawings or position relationship, only the present invention for convenience of description and simplified characterization, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore limitation of the present invention can not be interpreted as.
In addition, term " first ", " second " only for describing object, and can not be interpreted as instruction or hint relative importance or imply the quantity indicating indicated technical characteristics.Thus, be limited with " first ", the feature of " second " can express or impliedly comprise one or more these features.In describing the invention, except as otherwise noted, the implication of " multiple " is two or more.
In describing the invention, it should be noted that, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or connect integratedly; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals.For the ordinary skill in the art, concrete condition above-mentioned term concrete meaning in the present invention can be understood.
Below with reference to Fig. 1-Figure 11, the rotary compressor 100 according to the embodiment of the present invention is described.
As shown in Figure 1, according to the rotary compressor 100 of the embodiment of the present invention, comprise compressing mechanism and the first noise reduction filter core 2.
Specifically, with reference to Fig. 1, compressing mechanism comprises main bearing 11, cylinder 12 and supplementary bearing 13, the top of cylinder 12 and bottom are all unlimited, main bearing 11 is located at the top of cylinder 12, supplementary bearing 13 is located at the bottom of cylinder 12, main bearing 11, limits compression chamber for compression refrigerant between cylinder 12 and supplementary bearing 13.
Supplementary bearing 13 is formed with relief opening, and the refrigerant in compression chamber after compression can be discharged from this relief opening.Further, the bottom of supplementary bearing 13 can be provided with secondary baffler 3, secondary baffler 3 with limit the secondary silencing cavity 31 be communicated with relief opening between supplementary bearing 13, thus can to enter in secondary silencing cavity 31 from the refrigerant that the relief opening of supplementary bearing 13 is discharged.Thus, by arranging main baffler 4, effectively noise can be reduced.
Compressing mechanism is formed with the exhaust passage 14 be communicated with relief opening, main bearing 11, cylinder 12 and supplementary bearing 13 are run through in exhaust passage 14.For example, referring to Fig. 1 and composition graphs 2-Fig. 7, exhaust passage 14 vertically extends, and exhaust passage 14 is communicated with relief opening by secondary silencing cavity 31, and that is, the refrigerant entered in secondary silencing cavity 31 can discharge compressing mechanism via exhaust passage 14.
First noise reduction filter core 2 is located in exhaust passage 14, exhaust passage 14 is separated into main flow cavity 141 and silencing cavity 142 by the first noise reduction filter core 2, first noise reduction filter core 2 is formed with multiple first micropore 21, multiple first micropore 21 runs through the first noise reduction filter core 2 along the thickness direction of the first noise reduction filter core 2, and main flow cavity 141 is communicated with silencing cavity 142 by multiple first micropore 21.Be appreciated that the number of the first micropore 21 can require according to reality noise elimination and suitably choose, the present invention does not do concrete restriction to this.Wherein, the area of each first micropore 21 is less than or equal to π mm
2.
Thus, refrigerant after compression discharges mineralization pressure ripple from the relief opening of supplementary bearing 13, pressure wave is in the process flowing through exhaust passage 14, pressure wave in main flow cavity 141 can be entered in silencing cavity 142 by multiple first micropore 21 and carry out resonance consumed energy, thus realize the function of noise reduction, and very little to main flow cavity 141 flow, and then can ignore the impact of the performance of rotary compressor 100.
Wherein, the arrangement mode of multiple first micropores 21 on the first noise reduction filter core 2 can be regular, also can be random.Such as, with reference to Fig. 8 a and 9a composition graphs 8b and Fig. 9 b, first noise reduction filter core 2 is formed as tubular, four row of spaced apart setting in the circumference that multiple first micropore 21 is included in the first noise reduction filter core 2, wherein two row first micropores 21 and other two row first micropores 21 are along the first noise reduction filter core 2 diametrically, what often row first micropore 21 axis comprised along the first noise reduction filter core 2 was spaced apart from each other is multiple, often row first micropore 21 preferably distributes at the axially uniform intervals of the first noise reduction filter core 2, above-mentioned wherein two row first micropores 21 and above-mentioned other two row first micropores 21 can respectively in the axially interlaced arrangement of the first noise reduction filter core 2, or above-mentioned wherein two row first micropores 21 and above-mentioned other two row first micropores 21 can also respectively at the axially one_to_one corresponding of the first noise reduction filter core 2.Wherein, each first micropore 21 is circular port, and thus, processing is simple and cost is low.
Certainly, each first micropore 21 can also be slotted eye, long-round-shape hole or polygonal hole etc.Multiple first micropores 21 being formed as prismatic shape have such as been shown in the example of Figure 10.Illustrate in the example of Figure 10 and be formed as triangular shaped multiple first micropores 21.Be appreciated that the concrete shape of each first micropore 21 and the arrangement on the first noise reduction filter core 2 etc. can according to actual requirement adaptive change, the present invention does not make particular determination to this.
Further, the top of main bearing 11 can also be provided with main baffler 4, main silencing cavity 41 is limited between main baffler 4 and main bearing 11, main baffler 4 is formed with the exhaust port be communicated with main silencing cavity 41, after the refrigerant of being discharged by exhaust passage 14 enters into and carries out further noise reduction in main silencing cavity 41, discharge from the exhaust port of main baffler 4.Thus, by arranging main baffler 4, noise can be reduced further.
According to the rotary compressor 100 of the embodiment of the present invention, by arranging the first noise reduction filter core 2 with multiple first micropore 21, and the first noise reduction filter core 2 with limit the noise elimination cavity be communicated with main flow cavity 141 between exhaust passage 14, can noise reduction be realized, and little 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 and exhaust passage 14 are tightly connected.Thus, silencing cavity 142 is the cavity roughly sealed, and the main flow cavity 141 now formed in exhaust passage 14 is communicated with silencing cavity 142 by means of only multiple first micropore 21, thus can realize silencing function better.
According to a specific embodiment of the present invention, exhaust passage 14 comprises the first passage 111, second channel 121 and the third channel 131 that are communicated with successively, first passage 111 is formed on main bearing 11, and second channel 121 is formed on cylinder 12, and third channel 131 is formed on supplementary bearing 13.With reference to Fig. 1 and Fig. 3, main bearing 11 is vertically run through in exhaust passage 14, cylinder 12 and supplementary bearing 13, specifically, the thickness direction of first passage 111 along main bearing 11 on vertically runs through main bearing 11, the thickness direction of second channel 121 along cylinder 12 on vertically runs through cylinder 12, third channel 131 runs through supplementary bearing 13 along the thickness direction of supplementary bearing 13, first passage 111, second channel 121 and third channel 131 are relative vertical, thus the gas such as refrigerant in secondary silencing cavity 31 can flow through third channel 131 from bottom to top successively, second channel 121, first passage 111 enters in main silencing cavity 41.
As shown in Figure 3, the cross-section area of first passage 111, second channel 121 and third channel 131 is axially equal everywhere along it respectively, the shape of cross section of first passage 111 and third channel 131 is circular, the shape of cross section of second channel 121 is long-round-shape, and the cross-section area of second channel 121 is greater than the cross-section area of first passage 111 and the cross-section area of third channel 131 respectively, the first noise reduction filter core 2 is located in second channel 121.Thus, the first noise reduction filter core 2 can and the inwall of second channel 121 between limit silencing cavity 142.Or the cross-section area of first passage 111, second channel 121 and third channel 131 can also be change.
Certainly, the cross-section area of second channel 121 can also be all equal with the cross-section area of first passage 111 and third channel 131, now the first noise reduction filter core 2 can be processed into top and bottom to be connected with the inner wall sealing of exhaust passage 14, and the middle part of the first noise reduction filter core 2 and the inwall of exhaust passage 14 are spaced apart from each other to limit silencing cavity 142.Be appreciated that concrete shape of first passage 111, second channel 121 and third channel 131 etc. can according to actual requirement adaptive change, the present invention does not do concrete restriction to this.
With reference to Fig. 3, the upper end of the first noise reduction filter core 2 contacts with the lower end surface of main bearing 11, the lower end of the first noise reduction filter core 2 contacts with the upper-end surface of supplementary bearing 13, now the first noise reduction filter core 2 height is in the vertical direction substantially equal with the thickness of cylinder 12, thus form between the upper end of the first noise reduction filter core 2 and the lower end surface of main bearing 11 and be tightly connected, form between the lower end of the first noise reduction filter core 2 and the upper-end surface of supplementary bearing 13 and be tightly connected.
Further, such as, when the shape of cross section of second channel 121 is long-round-shape and the first noise reduction filter core 2 is tubular, when the peripheral dimension of the first noise reduction filter core 2 is less than the minimum dimension of the inwall of second channel 121, between the first noise reduction filter core 2 and second channel 121, limit a silencing cavity 142; When the peripheral dimension of the first noise reduction filter core 2 is substantially equal to the minimum dimension of the inwall of second channel 121, between the first noise reduction filter core 2 and second channel 121, limit two silencing cavity 142 of keeping apart.
Certainly, with reference to Fig. 4, the upper end of the first noise reduction filter core 2 can also be stretched in first passage 111, and the contact internal walls of the first noise reduction filter core 2 and first passage 111, thus make to form between the upper end of the first noise reduction filter core 2 and the inwall of first passage 111 to be tightly connected, the lower end of the first noise reduction filter core 2 is stretched in third channel 131, and the contact internal walls of the first noise reduction filter core 2 and third channel 131, thus make to form between the lower end of the first noise reduction filter core 2 and the inwall of third channel 131 to be tightly connected.Now the first noise reduction filter core 2 height is in the vertical direction greater than the thickness of cylinder 12.Wherein, the first noise reduction filter core 2 can only be fixed on main bearing 11, also can only be fixed on supplementary bearing 13, or is fixed on main bearing 11 and supplementary bearing 13 simultaneously.
Specifically, as shown in Figure 4, the lower end surface of main bearing 11 is formed with the first fixed hole be communicated with first passage 111, the cross-section area of the first fixed hole is greater than the cross-section area of first passage 111, the upper end of the first noise reduction filter core 2 can be stretched in the first fixed hole and to contact with the roof of the first fixed hole, similarly, the upper-end surface of supplementary bearing 13 can be formed with the 3rd fixed hole be communicated with third channel 131, the cross-section area of the 3rd fixed hole is greater than the cross-section area of third channel 131, the lower end of the first noise reduction filter core 2 can be stretched in the 3rd fixed hole and to contact with the diapire of the 3rd fixed hole, now first passage 111 and the first fixed hole, third channel 131 and the 3rd fixed hole form step hole respectively.Thus, by the thrust of upper and lower two step holes, improve the reliability that the first noise reduction filter core 2 is installed.Wherein, after the first noise reduction filter core 2 is in place with compressing mechanism, the inwall of the first noise reduction filter core 2 can keep concordant with first passage 111 with the inwall of third channel 131.
According to a specific embodiment of the present invention, exhaust passage 14 comprises at least one in the first silencing groove and the second silencing groove further.That is, exhaust passage 14 only can comprise the first silencing groove further, also only can comprise the second silencing groove further, or comprises the first silencing groove and the second silencing groove further simultaneously.Wherein, the first silencing groove is formed on the lower end surface of main bearing 11, and the first silencing groove is directly communicated with silencing cavity 142.Second silencing groove is formed on the upper-end surface of supplementary bearing 13, and the second silencing groove is directly communicated with silencing cavity 142.
With reference to Fig. 5, the first silencing groove can be formed to being recessed on by a part for the lower end surface of main bearing 11, and the downside of the first silencing groove is opened wide, thus directly can be communicated with silencing cavity 142; Second silencing groove can be formed by a part for the upper-end surface of supplementary bearing 13 is recessed downwards, and the upside of the first silencing groove is opened wide, thus directly can be communicated with silencing cavity 142.Thus, by arranging the first silencing groove and the second silencing groove, add the volume of silencing cavity 142, thus improve the erasure effect of rotary compressor 100 further.In addition, the two ends up and down of the first noise reduction filter core 2 can respectively with the step hole thrust on main bearing 11 and supplementary bearing 13, better reliability.Wherein, step hole is stated in embodiment on the invention and is described in detail, and does not repeat them here.
Alternatively, the first noise reduction filter core 2 can be formed as tubular.Such as 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 circular, and now the first noise reduction filter core 2 remains unchanged along its axial cross section is long-pending.In the example of Fig. 9 a and Fig. 9 b, first noise reduction filter core 2 is conical pipe, and the shape of cross section of the first noise reduction filter core 2 is circular, now the first noise reduction filter core 2 amasss along its axial cross section and gradually changes, such as, direction from left to right in Fig. 9 b, the cross-section area of the first noise reduction filter core 2 increases gradually.Or the shape of cross section of the first noise reduction filter core 2 of tubular can also be ellipse, long-round-shape or polygonal etc.
Certainly, the first noise reduction filter core 2 can be formed as tabular, and the external frame of the first noise reduction filter core 2 of tabular is connected to limit roughly airtight silencing cavity 142 between the inwall of exhaust passage 14 with the inner wall sealing of exhaust passage 14.Such as, the first noise reduction filter core 2 can be dull and stereotyped, or curved plate such as arc plate or wave-shape board etc.
Further, at least one second noise reduction filter core 5 can be provided with in silencing cavity 142, second noise reduction filter core 5 is formed with multiple second micropore 51, second noise reduction filter core 5 and silencing cavity 142 is separated into multiple sub-silencing cavity 142, the area of each second micropore 51 is less than or equal to π mm
2.
With reference to Fig. 6 composition graphs 7, two the second noise reduction filter cores 5 of spaced apart setting are provided with in silencing cavity 142, each second noise reduction filter core 5 is planar, two flat second noise reduction filter cores 5 lay respectively at the left and right sides of the first noise reduction filter core 2 of tubular, each second noise reduction filter core 5 is all formed with multiple second micropores 51 that many row's multiple rows are arranged, and silencing cavity 142 is separated into multiple sub-silencing cavity 142 by two the second noise reduction filter cores 5, and be communicated with by multiple second micropore 51 between multiple sub-silencing cavity 142.
Thus, by arranging the second noise reduction filter core 5, second noise reduction filter core 5, silencing cavity 142 is separated into multiple sub-silencing cavity 142, the resistive enhancing of structure of whole exhaust passage 14, by adjusting the position of the second noise reduction filter core 5, can resonant frequency be adjusted, improve erasure effect further.Be appreciated that the number of the second noise reduction filter core 5 and the second micropore 51, specifically size and arrangement etc. can be eliminated the noise according to reality to require and adaptive change, the present invention does not make particular determination to this.
By suitably adjust the thickness of the volume of silencing cavity 142, the first noise reduction filter core 2 and the second noise reduction filter core 5, micropore punching rate (namely within the scope of perforation field, the gross area of perforation eyelet accounts for the percentage of whole area) and the area etc. of micropore regulate the resonant frequency of silencing cavity 142, thus the noise eliminating designated frequency band can be realized, and the flow resistance of refrigerant can not be increased, also very little on the impact of the performance of rotary compressor 100.
Such as, the thickness of the first noise reduction filter core 2 is preferably less than or equal to 3mm.The area sum of multiple micropore is S1, and the area of the first noise reduction filter core 2 is S2, and wherein S1, S2 meet: S1/S2≤5%, now punching rate≤5% of micropore.
According to a further embodiment of the invention, noise reduction part such as silencing cotton etc. can be filled in silencing cavity 142, thus, erasure effect can be improved further.
Thus, by adopting the rotary compressor 100 according to the embodiment of the present invention, the noise of rotary compressor 100 can be reduced further, and less to the performance impact of rotary compressor 100.
Be all known according to other configuration examples of the rotary compressor 100 of the embodiment of the present invention to those skilled in the art as motor etc. and operation, be not described in detail here.
In the description of this specification, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " illustrative examples ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present invention or example.In this manual, identical embodiment or example are not necessarily referred to the schematic representation of above-mentioned term.And the specific features of description, structure, material or feature can combine in an appropriate manner in any one or more embodiment or example.
Although illustrate and describe embodiments of the invention, those having ordinary skill in the art will appreciate that: can carry out multiple change, amendment, replacement and modification to these embodiments when not departing from principle of the present invention and aim, scope of the present invention is by claim and equivalents thereof.
Claims (14)
1. a rotary compressor, is characterized in that, comprising:
Compressing mechanism, described compressing mechanism comprises main bearing, cylinder and supplementary bearing, described main bearing is located at the top of described cylinder, described supplementary bearing is located at the bottom of described cylinder, described main bearing, between described cylinder and described supplementary bearing, limit compression chamber, described supplementary bearing is formed with relief opening, described compressing mechanism is formed with the exhaust passage be communicated with described relief opening, described main bearing, described cylinder and described supplementary bearing are run through in described exhaust passage; With
First noise reduction filter core, described first noise reduction filter core is located in described exhaust passage, described exhaust passage is separated into main flow cavity and silencing cavity by described first noise reduction filter core, described first noise reduction filter core is formed with multiple first micropore, described main flow cavity is communicated with described silencing cavity by described multiple first micropore, and the area of each described first micropore is less than or equal to π mm
2.
2. rotary compressor according to claim 1, is characterized in that, the top and bottom of described first noise reduction filter core are connected with described passageway seals.
3. rotary compressor according to claim 2, it is characterized in that, described exhaust passage comprises the first passage that is communicated with successively to third channel, described first passage is formed on main bearing, described second channel is formed on cylinder, described third channel is formed on supplementary bearing, and the cross-section area of described second channel is greater than the cross-section area of described first passage and described third channel, and wherein said first noise reduction filter core is located in described second channel.
4. rotary compressor according to claim 3, is characterized in that, the upper end of described first noise reduction filter core contacts with the lower end surface of described main bearing, and the lower end of described first noise reduction filter core contacts with the upper-end surface of described supplementary bearing.
5. rotary compressor according to claim 3, it is characterized in that, the upper end of described first noise reduction filter core to stretch in described first passage and with the contact internal walls of described first passage, the lower end of described first noise reduction filter core to stretch in described third channel and with the contact internal walls of described third channel.
6. rotary compressor according to claim 3, it is characterized in that, described exhaust passage comprises at least one in the first silencing groove and the second silencing groove further, the lower end surface that wherein said first silencing groove is formed in main bearing is directly communicated with described silencing cavity, the upper-end surface that described second silencing groove is formed in supplementary bearing is directly communicated with described silencing cavity.
7. rotary compressor according to claim 1, is characterized in that, described first noise reduction filter core is formed as tubular or tabular.
8. rotary compressor according to claim 7, is characterized in that, when described first noise reduction filter core is formed as tubular, described first noise reduction filter core is straight tube or conical pipe.
9. rotary compressor according to claim 7, is characterized in that, when described first noise reduction filter core is formed as tabular, described first noise reduction filter core is dull and stereotyped or arc plate.
10. rotary compressor according to claim 1, is characterized in that, fills noise reduction part in described silencing cavity.
11. rotary compressors according to claim 1, is characterized in that, the thickness of described first noise reduction filter core is less than or equal to 3mm.
12. rotary compressors according to claim 1, is characterized in that, the area sum of described multiple micropore is S1, and the area of described first noise reduction filter core is S2, and wherein said S1, S2 meet: S1/S2≤5%.
13. rotary compressors according to claim 1, it is characterized in that, at least one second noise reduction filter core is provided with in described silencing cavity, described second noise reduction filter core is formed with multiple second micropore, described silencing cavity is separated into multiple sub-silencing cavity by described second noise reduction filter core, and the area of each described second micropore is less than or equal to π mm
2.
14. rotary compressors according to any one of claim 1-13, it is characterized in that, each described first micropore is circular port, slotted eye, long-round-shape hole or polygonal hole.
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| CN201410779069.9A CN104500402B (en) | 2014-12-16 | 2014-12-16 | Rotary compressor |
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| CN104500402B CN104500402B (en) | 2017-05-31 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105804974A (en) * | 2016-05-11 | 2016-07-27 | 珠海凌达压缩机有限公司 | Compressor pump body structure, compressor and air conditioner |
| WO2016165114A1 (en) * | 2015-04-16 | 2016-10-20 | 广东美芝制冷设备有限公司 | Rotary compressor |
| 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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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2016165114A1 (en) * | 2015-04-16 | 2016-10-20 | 广东美芝制冷设备有限公司 | Rotary compressor |
| CN105804974A (en) * | 2016-05-11 | 2016-07-27 | 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104500402B (en) | 2017-05-31 |
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