CN204312354U - Rotary compressor - Google Patents
Rotary compressor Download PDFInfo
- Publication number
- CN204312354U CN204312354U CN201420797323.3U CN201420797323U CN204312354U CN 204312354 U CN204312354 U CN 204312354U CN 201420797323 U CN201420797323 U CN 201420797323U CN 204312354 U CN204312354 U CN 204312354U
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- silencing
- dividing plate
- cylinder
- silencing cavity
- rotary compressor
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Abstract
The utility model discloses a kind of rotary compressor, comprise: compressing mechanism, baffler and dividing plate, compressing mechanism comprises cylinder and two bearings, two bearings are located at the axial two ends of cylinder respectively, two limit compression chamber between bearing and cylinder, and at least one in two bearings is formed with the relief opening be communicated with compression chamber; Baffler is located at the side away from cylinder of at least one in two bearings; Dividing plate is located between baffler and the bearing of correspondence, and between dividing plate with baffler, limit the first silencing cavity be communicated with relief opening, at least one second silencing cavity is limited between dividing plate and corresponding bearing, dividing plate is formed with multiple micropore, second silencing cavity is communicated with the first silencing cavity by multiple micropore, and the area of each micropore is less than or equal to π mm
2.According to rotary compressor of the present utility model, can noise reduction be realized, and little to the performance impact of rotary compressor.
Description
Technical field
The utility model relates to Compressor Manufacturing technical field, especially relates 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.
Model utility content
The utility model is intended at least to solve one of technical problem existed in prior art.For this reason, an object of the present utility model is to propose a kind of rotary compressor, and the noise of rotary compressor is little.
According to rotary compressor of the present utility model, comprise: compressing mechanism, described compressing mechanism comprises cylinder and two bearings, described two bearings are located at the axial two ends of described cylinder respectively, limit compression chamber between described two bearings and described cylinder, at least one in described two bearings is formed with the relief opening be communicated with described compression chamber; Baffler, described baffler is located at least one the side away from described cylinder described in described two bearings; Dividing plate, described dividing plate is located between described baffler and the described bearing of correspondence, and between described dividing plate with described baffler, limit the first silencing cavity be communicated with described relief opening, at least one second silencing cavity is limited between described dividing plate and corresponding described bearing, described dividing plate is formed with multiple micropore, described second silencing cavity is communicated with described first silencing cavity by described multiple micropore, and the area of each described micropore is less than or equal to π mm
2.
According to rotary compressor of the present utility model, by arranging the dividing plate with multiple micropore, and between dividing plate with bearing, limiting the second noise elimination cavity be communicated with the first noise elimination cavity, can noise reduction be realized, and little to the performance impact of rotary compressor.
Alternatively, the side away from described cylinder of described bearing is formed with first silencing groove recessed towards the direction of described cylinder on the surface, limits described second silencing cavity between described first silencing groove and described dividing plate.
Or alternatively, the side away from described cylinder of described bearing is formed with first silencing groove recessed towards the direction of described cylinder on the surface, the side of the described cylinder of vicinity of described dividing plate is formed towards the second recessed silencing groove of the direction away from described cylinder on the surface, described first silencing groove and described second silencing groove limit described second silencing cavity jointly, and wherein said multiple micropore is formed on the inwall of described second silencing groove.
Further, on the cross section of described cylinder, the area of described second silencing groove is more than or equal to the area of described first silencing groove.
Alternatively, described second silencing cavity is the spaced apart setting in the circumference of described cylinder of multiple and described multiple second silencing cavity.
Alternatively, at least one height axially at described cylinder in described multiple second silencing cavity and the height axially at described cylinder of the second silencing cavity described in remaining are not etc.
Further, be provided with at least one divider in described second silencing cavity, described second silencing cavity becomes multiple sub-silencing cavity by least one channels separated described.
Further, noise reduction part is filled in described second silencing cavity.
Alternatively, the thickness of described dividing plate is less than or equal to 5mm.
Alternatively, the area sum of described multiple micropore is S1, and the area of described dividing plate is S2, and wherein said S1, S2 meet: S1/S2≤5%.
Alternatively, described second silencing cavity is more than or equal to 1mm at the height axially of described cylinder.
Alternatively, each described micropore is circular port, slotted eye, long-round-shape hole or polygonal hole.
Additional aspect of the present utility model 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 utility model.
Accompanying drawing explanation
Above-mentioned and/or additional aspect of the present utility model 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 utility model embodiment;
Fig. 2 is the sectional view of the rotary compressor according to the utility model embodiment;
Fig. 3 is the sectional view of the bearing of the rotary compressor shown in Fig. 2, baffler and dividing plate;
Fig. 4 a is the schematic diagram of the dividing plate according to the utility model first embodiment;
Fig. 4 b is the schematic diagram of the dividing plate according to the utility model second embodiment;
Fig. 4 c is the schematic diagram of the dividing plate according to the utility model the 3rd embodiment;
Fig. 5 is the stereogram of the bearing shown in Fig. 2;
Fig. 6 is the sectional view of the rotary compressor according to another embodiment of the utility model;
Fig. 7 a is the schematic diagram of the dividing plate according to the utility model the 4th embodiment;
Fig. 7 b is the schematic diagram of another angle of the dividing plate shown in Fig. 7 a;
Fig. 8 a is the schematic diagram of the dividing plate according to the utility model the 5th embodiment;
Fig. 8 b is the schematic diagram of another angle of the dividing plate shown in Fig. 8 a;
Fig. 9 a is the stereogram of the bearing according to the utility model embodiment;
Fig. 9 b is another stereogram of the bearing according to the utility model embodiment;
Figure 10 is the assembling schematic diagram of bearing according to the utility model embodiment and dividing plate.
Reference character:
100: rotary compressor;
11: cylinder; 12: bearing; 121: the first silencing grooves;
2: baffler; 3: dividing plate; 31: micropore; 32: the second silencing grooves;
41: the first silencing cavity; 42: the second silencing cavity.
Embodiment
Be described below in detail embodiment of the present utility model, 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 utility model, and can not being interpreted as restriction of the present utility model.
In description of the present utility model, 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 utility model and simplified characterization for convenience of description, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as restriction of the present utility model.
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 description of the present utility model, except as otherwise noted, the implication of " multiple " is two or more.
In description of the present utility model, 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 the concrete meaning of above-mentioned term in the utility model can be understood.
Below with reference to Fig. 1-Figure 10, the rotary compressor 100 according to the utility model embodiment is described.Rotary compressor 100 can be vertical compressor.In description below the application, be described for vertical compressor for rotary compressor 100.Certainly, those skilled in the art are appreciated that rotary compressor 100 can also be horizontal compressor.
As shown in Figure 1, according to the rotary compressor 100 such as vertical compressor of the utility model embodiment, compressing mechanism, baffler 2 and dividing plate 3 is comprised.
Specifically, with reference to Fig. 1, compressing mechanism comprises the axial two ends that cylinder 11 and two bearings, 12, two bearings 12 are located at cylinder 11 respectively, limits compression chamber between two bearings 12 and cylinder 11.Such as, as shown in Figure 2, when rotary compressor 100 is vertical compressor, the top of cylinder 11 and bottom are all unlimited, two bearings 12 are located at top and the bottom of cylinder 11 respectively, and limit the compression chamber for compression refrigerant between two bearings 12 and cylinder 11.
At least one in two bearings 12 is formed with the relief opening be communicated with compression chamber.That is, relief opening can only be formed in one of them in two bearings 12, also can be respectively formed on two bearings 12 simultaneously.Discharge from relief opening after entering into the refrigerant compression in compression chamber.
Baffler 2 is located at least one the side away from cylinder 11 above-mentioned in two bearings 12.For example, referring to Fig. 2 and Fig. 3, when relief opening is formed on the bearing 12 be located at above cylinder 11, baffler 2 is located at the top of this bearing 12.Certainly, when two bearings 12 are formed with relief opening respectively, two bearings 12 can be equipped with baffler 2, one of them baffler 2 is located at the top of the bearing 12 of top, and another baffler 2 is located at the bottom of the bearing 12 of below.
Dividing plate 3 is located between the bearing 12 of baffler 2 and correspondence, and between dividing plate 3 with baffler 2, limit the first silencing cavity 41 be communicated with relief opening, at least one second silencing cavity 42 is limited between dividing plate 3 and corresponding bearing 12, dividing plate 3 is formed with multiple micropore 31, multiple micropore 31 runs through dividing plate 3 along the thickness direction of dividing plate 3, and the second silencing cavity 42 is communicated with the first silencing cavity 41 by multiple micropore 31.Be appreciated that the number of micropore 31 can require according to reality noise elimination and suitably choose, the utility model does not do concrete restriction to this.Wherein, the area of each micropore 31 is less than or equal to π mm
2.Alternatively, the second silencing cavity 42 can be multiple, and such as, multiple second silencing cavity 42 can spaced apart setting in the circumference of cylinder 11.
Thus, refrigerant after compression discharges mineralization pressure ripple from relief opening, and pressure wave can enter the second silencing cavity 42 internal resonance and consumed energy by multiple micropore 31, thus realizes the function of noise reduction, and very little to sprue flow, can ignore the impact of the performance of rotary compressor 100.
Wherein, the arrangement mode of multiple micropore 31 on dividing plate 3 can be regular, also can be random.Such as, as shown in fig. 4 a, dividing plate 3 is roughly circular planar, multiple micropore 31 is spaced apart from each other setting in the circumference of dividing plate 3, the preferably uniform intervals distribution in the circumference of dividing plate 3 of multiple micropore 31, specifically, multiple micropore 31 is included in two rows that the radial direction of dividing plate 3 is arranged, and two row's micropores 31 one_to_one corresponding in the radial direction of dividing plate 3.Or, the radial two row's micropores 31 arranged also can in the circumference of dividing plate 3 interlaced arrangement, as shown in Figure 4 b.Wherein, each micropore 31 is circular port, and thus, processing is simple and cost is low.
Certainly, each micropore 31 can also be slotted eye, long-round-shape hole or polygonal hole etc.Such as, as illustrated in fig. 4 c, many groups that in the circumference that multiple micropore 31 is included in dividing plate 3, uniform intervals is arranged, often organize micropore 31 and comprise four different micropores 31 of shape, four micropores 31 are arranged from inside to outside in the counterclockwise direction, and four micropores 31 are followed successively by circular port, tri-angle-holed, parallelogram hole and rectangular opening from inside to outside.Here, it should be noted that, " interior " can be understood as the direction towards dividing plate 3 center, and its opposite direction is defined as " outward ", namely away from the direction at dividing plate 3 center.Be appreciated that the concrete shape of each micropore 31 and the arrangement on dividing plate 3 etc. can according to actual requirement specific designs, the utility model does not make particular determination to this.
According to the rotary compressor 100 such as vertical compressor of the utility model embodiment, by arranging the dividing plate 3 with multiple micropore 31, and between dividing plate 3 with bearing 12, limit the second noise elimination cavity be communicated with the first noise elimination cavity, can noise reduction be realized, and little to the performance impact of rotary compressor 100.
According to an embodiment of the present utility model, a side surface away from cylinder 11 of bearing 12 (such as, upper surface in Fig. 3) on be formed and limit the second silencing cavity 42 towards between first silencing groove 121, first silencing groove 121 in the direction of cylinder 11 recessed (namely downwards) and dividing plate 3.
With reference to Fig. 5, first silencing groove 121 is roughly " C " shape, first silencing groove 121 extends along the circumference of cylinder 11, and the first silencing groove 121 can be formed by a part for the upper surface of bearing 12 is recessed downwards, flat dividing plate 3 coordinates the second silencing cavity 42 being formed and roughly seal with the bearing 12 with the first silencing groove 121.After dividing plate 3 and bearing 12 are seated, multiple micropores 31 of dividing plate 3 are corresponding with the first silencing groove 121, and now the second silencing cavity 42 is communicated with by means of only multiple micropore 31 with the first silencing cavity 41.
Certainly, bearing 12 can also be formed with multiple first silencing groove 121.For example, referring to Figure 10 and composition graphs 9a and Fig. 9 b, the spaced apart setting in the circumference of bearing 12 of multiple first silencing groove 121, the dividing plate 3 with multiple micropore 31 coordinates multiple second silencing cavity 42 being formed and roughly seal with this bearing 12.Be appreciated that the concrete size of the first silencing groove 121, shape and the arrangement etc. on bearing 12 can require and adaptive change according to actual noise reduction, the utility model does not do concrete restriction to this.
According to another embodiment of the present utility model, a side surface away from cylinder 11 of bearing 12 (such as, upper surface in Fig. 6) on to be formed with towards the direction of cylinder 11 first silencing groove 121 of recessed (namely downwards), one side surface of the contiguous cylinder 11 of dividing plate 3 (such as, lower surface in Fig. 6) on be formed towards second silencing groove 32 in the direction recessed (namely upwards) away from cylinder 11, first silencing groove 121 and the second silencing groove 32 limit the second silencing cavity 42 jointly, and wherein multiple micropore 31 is formed on the inwall of the second silencing groove 32.
Wherein, the first silencing groove 121 is described in detail in the utility model above-described embodiment, does not repeat them here.Below the second silencing groove 32 of dividing plate 3 is described in detail.As shown in figs. 7 a and 7b, second silencing groove 32 is roughly " C " shape, second silencing groove 32 extends along the circumference of dividing plate 3, second silencing groove 32 can be formed to being recessed on by a part for the lower surface of dividing plate 3, and the dividing plate 3 with the second silencing groove 32 coordinates the second silencing cavity 42 being formed and roughly seal with the bearing 12 with the first silencing groove 121.Multiple micropores 31 of dividing plate 3 are formed on the roof of the second silencing groove 32, and after dividing plate 3 and bearing 12 are seated, the second silencing cavity 42 is communicated with by means of only multiple micropore 31 with the first silencing cavity 41.
Certainly, dividing plate 3 can also be formed with multiple second silencing groove 32.Such as, as shown in figs. 7 a and 7b, the spaced apart setting in the circumference of dividing plate 3 of multiple second silencing groove 32, first silencing groove 121 of bearing 12 can be one, this first silencing groove 121 can be communicated with at least one in multiple second silencing groove 32, alternatively, at least one height axially at cylinder 11 in multiple second silencing cavity 42 and the height axially at cylinder 11 of remaining the second silencing cavity 42 are not etc., such as, when the first silencing groove 121 is communicated with part second silencing groove 32 in multiple second silencing groove 32, multiple second silencing cavity 42 limited between bearing 12 and dividing plate 3 cylinder 11 height axially not etc., thus the erasure effect of more wide-band can be realized, when the first silencing groove 121 is all communicated with multiple second silencing groove 32 and the size of multiple second silencing groove 32 is all equal, the erasure effect to certain frequency range can be improved.
Or the first silencing groove 121 of bearing 12 can also be multiple, multiple first silencing grooves 121 and multiple second silencing groove 32 one_to_one corresponding, thus the first silencing groove 121 limits the second silencing cavity 42 jointly with the second corresponding silencing groove 32.Wherein, except multiple second silencing cavity 42 the height axially of cylinder 11 can be designed to not wait except, micropore 31 on multiple second silencing cavity 42 surface also can be designed to different numbers respectively, thus can realize the erasure effect of more wide-band further.
Thus, larger at the height axially of cylinder 11 by arranging the second silencing groove 32, second silencing cavity 42 on dividing plate 3, thus the better erasure effect of centering low frequency noise can be realized.
Alternatively, on the cross section of cylinder 11, the area of the second silencing groove 32 can be more than or equal to the area of the first silencing groove 121, but needs to guarantee the sealing between dividing plate 3 and bearing 12, has good erasure effect to make rotary compressor 100.
Further, be provided with at least one divider (scheming not shown) in the second silencing cavity 42, the second silencing cavity 42 becomes multiple sub-silencing cavity by least one channels separated.
By suitably adjust the height axially at cylinder 11 of the second silencing cavity 42, the thickness of dividing plate 3, micropore 31 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 31 regulate the resonant frequency of the second silencing cavity 42, 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 second silencing cavity 42 is preferably greater than or equal to 1mm at the height axially of cylinder 11.The thickness of dividing plate 3 is preferably less than or equal to 5mm.The area sum of multiple micropore 31 is S1, and the area of dividing plate 3 is S2, and wherein S1, S2 meet: S1/S2≤5%, now punching rate≤5% of micropore 31.
According to further embodiment of the present utility model, noise reduction part such as silencing cotton etc. can be filled in the second silencing cavity 42, thus, erasure effect can be improved further.
Thus, by adopting the rotary compressor 100 according to the utility model embodiment, 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 utility model embodiment 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 utility model 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 described embodiment of the present utility model, 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 utility model and aim, scope of the present utility model is by claim and equivalents thereof.
Claims (12)
1. a rotary compressor, is characterized in that, comprising:
Compressing mechanism, described compressing mechanism comprises cylinder and two bearings, described two bearings are located at the axial two ends of described cylinder respectively, limit compression chamber between described two bearings and described cylinder, and at least one in described two bearings is formed with the relief opening be communicated with described compression chamber;
Baffler, described baffler is located at least one the side away from described cylinder described in described two bearings;
Dividing plate, described dividing plate is located between described baffler and the described bearing of correspondence, and between described dividing plate with described baffler, limit the first silencing cavity be communicated with described relief opening, at least one second silencing cavity is limited between described dividing plate and corresponding described bearing, described dividing plate is formed with multiple micropore, described second silencing cavity is communicated with described first silencing cavity by described multiple micropore, and the area of each described micropore is less than or equal to π mm
2.
2. rotary compressor according to claim 1, it is characterized in that, the side away from described cylinder of described bearing is formed with first silencing groove recessed towards the direction of described cylinder on the surface, limits described second silencing cavity between described first silencing groove and described dividing plate.
3. rotary compressor according to claim 1, it is characterized in that, the side away from described cylinder of described bearing is formed with first silencing groove recessed towards the direction of described cylinder on the surface, the side of the described cylinder of vicinity of described dividing plate is formed towards the second recessed silencing groove of the direction away from described cylinder on the surface, described first silencing groove and described second silencing groove limit described second silencing cavity jointly, and wherein said multiple micropore is formed on the inwall of described second silencing groove.
4. rotary compressor according to claim 3, is characterized in that, on the cross section of described cylinder, the area of described second silencing groove is more than or equal to the area of described first silencing groove.
5. rotary compressor according to claim 1, is characterized in that, described second silencing cavity is the spaced apart setting in the circumference of described cylinder of multiple and described multiple second silencing cavity.
6. rotary compressor according to claim 5, is characterized in that, at least one height axially at described cylinder in described multiple second silencing cavity and the height axially at described cylinder of the second silencing cavity described in remaining are not etc.
7. rotary compressor according to claim 1, is characterized in that, is provided with at least one divider in described second silencing cavity, and described second silencing cavity becomes multiple sub-silencing cavity by least one channels separated described.
8. rotary compressor according to claim 1, is characterized in that, fills noise reduction part in described second silencing cavity.
9. rotary compressor according to claim 1, is characterized in that, the thickness of described dividing plate is less than or equal to 5mm.
10. rotary compressor according to claim 1, is characterized in that, the area sum of described multiple micropore is S1, and the area of described dividing plate is S2, and wherein said S1, S2 meet: S1/S2≤5%.
11. rotary compressors according to claim 1, is characterized in that, described second silencing cavity is more than or equal to 1mm at the height axially of described cylinder.
12. rotary compressors according to any one of claim 1-11, it is characterized in that, each described micropore is circular port, slotted eye, long-round-shape hole or polygonal hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420797323.3U CN204312354U (en) | 2014-12-16 | 2014-12-16 | Rotary compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420797323.3U CN204312354U (en) | 2014-12-16 | 2014-12-16 | Rotary compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204312354U true CN204312354U (en) | 2015-05-06 |
Family
ID=53134672
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420797323.3U Withdrawn - After Issue CN204312354U (en) | 2014-12-16 | 2014-12-16 | Rotary compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204312354U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104500403A (en) * | 2014-12-16 | 2015-04-08 | 广东美芝制冷设备有限公司 | Rotary compressor |
-
2014
- 2014-12-16 CN CN201420797323.3U patent/CN204312354U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104500403A (en) * | 2014-12-16 | 2015-04-08 | 广东美芝制冷设备有限公司 | Rotary compressor |
| CN104500403B (en) * | 2014-12-16 | 2016-06-29 | 广东美芝制冷设备有限公司 | Rotary compressor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150506 Effective date of abandoning: 20160629 |
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| C25 | Abandonment of patent right or utility model to avoid double patenting |