CN105041657A - Bearing assembly, rotary compressor with same and refrigerating system - Google Patents
Bearing assembly, rotary compressor with same and refrigerating system Download PDFInfo
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- CN105041657A CN105041657A CN201510398835.1A CN201510398835A CN105041657A CN 105041657 A CN105041657 A CN 105041657A CN 201510398835 A CN201510398835 A CN 201510398835A CN 105041657 A CN105041657 A CN 105041657A
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- exhaust port
- rotary compressor
- valve plate
- bearing unit
- bearing
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Abstract
The invention discloses a bearing assembly, a rotary compressor with the same and a refrigerating system. The bearing assembly comprises a bearing and an exhaust valve plate, wherein the bearing is provided with exhaust holes; one end of the exhaust valve plate is connected to the bearing; the other end of the exhaust valve plate covers the exhaust holes to open and close the exhaust holes; the cross sectional area of the ends, away from the exhaust valve plate, of the exhaust holes is smaller than that of the other ends of the exhaust holes. According to the bearing assembly, as the cross sectional area of the ends, away from the exhaust valve plate, of the exhaust holes is smaller than that of the other ends of the exhaust holes, the relation among the invalid volume, the sealing width and the damping attenuation capacity of the exhaust holes on high-pressure refrigerant energy can be optimized conveniently, and the energy efficiency of the rotary compressor is improved to a certain extent.
Description
Technical field
The present invention relates to technical field of refrigeration equipment, especially relate to a kind of bearing unit and there is its rotary compressor, refrigeration system.
Background technique
Normally, the upper bearing (metal) of rotary compressor is provided with exhaust port.The diameter of exhaust port is directly proportional to the size of Iinvalid volume, is inversely proportional to, and affects the design of the sealed width of exhaust port and piston inner diameter side with the damping vibration attenuation ability of exhaust port to high pressure refrigerant energy.When the centre coordinate relative position of exhaust port is constant, exhaust aperture is larger, and Iinvalid volume is larger, and the sealed width of exhaust port and piston inner diameter side is less, and piston end surface risk of leakage is larger; If but exhaust aperture is too small, then the damping vibration attenuation ability of exhaust port to high pressure refrigerant energy is larger, the efficiency of rotary compressor reduces.In the related, exhaust port is cylindrical, and namely the aperture of its each cross section is identical, then the reduction of Iinvalid volume, the increase of sealed width, the reduction of exhaust port to the damping vibration attenuation ability of high pressure refrigerant energy then cannot get both.
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 bearing unit, when bearing unit is applied to rotary compressor, described bearing unit can optimize Iinvalid volume, sealed width and exhaust port to the relation between the damping vibration attenuation ability of high pressure refrigerant energy, improves the efficiency of rotary compressor to a certain extent.
Another object of the present invention is to propose a kind of rotary compressor, comprises above-mentioned bearing unit.
Another object of the present invention is to propose a kind of refrigeration system, comprises above-mentioned rotary compressor.
The bearing unit of embodiment, comprises bearing according to a first aspect of the present invention, and described bearing is formed with exhaust port; Exhaust valve plate, one end of described exhaust valve plate is connected on described bearing, the other end of described exhaust valve plate covers to open and close described exhaust port on described exhaust port, and the cross-section area of one end away from described exhaust valve plate of described exhaust port is less than the cross-section area of the other end of described exhaust port.
According to the bearing unit of the embodiment of the present invention, when bearing unit is applied to rotary compressor, the cross-section area of the other end of exhaust port is less than by the cross-section area of the one end away from exhaust valve plate making exhaust port, thus be convenient to optimize Iinvalid volume, sealed width and exhaust port are to the relation between the damping vibration attenuation ability of high pressure refrigerant energy, avoid the excessive and Iinvalid volume that is that cause in aperture because of exhaust port to become large and exhaust port and piston inner diameter side sealed width and diminish, thus avoid piston end surface leakage, can also avoid that the aperture because of exhaust port is too small and exhaust port that is that cause becomes large to the damping vibration attenuation ability of high pressure refrigerant energy simultaneously, improve the efficiency of rotary compressor to a certain extent.
According to some embodiments of the present invention, described exhaust port is circular port, and the diameter of described one end of described exhaust port is d
2, the diameter of the described the other end of described exhaust port is d
1, wherein, described d
1, d
2meet: 1.3>=d
1/ d
2> 1.1.
According to some embodiments of the present invention, described exhaust port is configured to axially increase gradually from described one end of described exhaust port towards the direction cross-section area of the described the other end of described exhaust port along it.
According to some embodiments of the present invention, described exhaust port comprises the first row pore and second row pore that are connected successively vertically, described first row pore is positioned at the side away from described exhaust valve plate of described second row pore, and wherein said second row pore is configured to axially increase gradually from described one end of described exhaust port towards the direction cross-section area of the described the other end of described exhaust port along it.
Further, described first row pore is configured to remain unchanged along its axial cross section is long-pending.
The rotary compressor of embodiment, comprises housing according to a second aspect of the present invention; Cylinder assembly, described cylinder assembly is located in described housing; And the above-mentioned bearing unit for rotary compressor, wherein said bearing unit is located at least one end in the axial two ends of described cylinder assembly.
According to the rotary compressor of the embodiment of the present invention, by arranging above-mentioned bearing unit, the compression efficiency of rotary compressor can be improved at least to a certain extent.
The refrigeration system of embodiment according to a third aspect of the present invention, comprising: above-mentioned rotary compressor, and described rotary compressor has intakeport and relief opening; Condenser, the first end of described condenser is connected with described relief opening; Vaporizer, the first end of described vaporizer is connected with described intakeport; And throttling arrangement, described throttling arrangement is connected between the second end of described condenser and the second end of described vaporizer.
According to the refrigeration system of the embodiment of the present invention, by arranging above-mentioned rotary compressor, refrigeration can be improved at least to a certain extent.
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 schematic diagram of the refrigeration system according to the embodiment of the present invention;
Fig. 2 is the schematic diagram of the bearing unit shown in Fig. 1;
Fig. 3 is the close-up schematic view of the bearing unit shown in Fig. 2;
Fig. 4 is the close-up schematic view of the bearing unit according to other embodiments of the present invention.
Reference character:
Refrigeration system 1000;
Rotary compressor 100; Bearing unit 10; Bearing 1; Exhaust port 11; First row pore 111; Second row pore 112; Exhaust valve plate 2; Lift stopper 3; Housing 20; Cylinder assembly 30; Relief opening 40; Intakeport 50;
Condenser 200; Vaporizer 300; Throttling arrangement 400.
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, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end ", " interior ", " outward ", " clockwise ", " counterclockwise ", " 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 mechanical connection, also can be electrical connection; 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.
In the present invention, unless otherwise clearly defined and limited, fisrt feature second feature it " on " or D score can comprise the first and second features and directly contact, also can comprise the first and second features and not be directly contact but by the other characterisation contact between them.And, fisrt feature second feature " on ", " top " and " above " comprise fisrt feature directly over second feature and oblique upper, or only represent that fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " below " and " below " comprise fisrt feature directly over second feature and oblique upper, or only represent that fisrt feature level height is less than second feature.
Disclosing hereafter provides many different embodiments or example is used for realizing different structure of the present invention.Of the present invention open in order to simplify, hereinafter the parts of specific examples and setting are described.Certainly, they are only example, and object does not lie in restriction the present invention.In addition, the present invention can in different example repeat reference numerals and/or letter.This repetition is to simplify and clearly object, itself does not indicate the relation between discussed various embodiment and/or setting.In addition, the various specific technique that the invention provides and the example of material, but those of ordinary skill in the art can recognize the property of can be applicable to of other techniques and/or the use of other materials.
In addition, fisrt feature described below second feature it " on " structure can comprise the embodiment that the first and second features are formed as directly contact, also can comprise other feature and be formed in embodiment between the first and second features, such first and second features may not be direct contacts.
Below with reference to the accompanying drawings describe the bearing unit 10 of embodiment according to a first aspect of the present invention, can be applicable in rotary compressor 100.
As Figure 1-Figure 2, the bearing unit 10 of embodiment can comprise bearing 1, exhaust valve plate 2 and lift stopper 3 according to a first aspect of the present invention.Wherein, bearing 1 is formed with exhaust port 11, the refrigerant of the High Temperature High Pressure after rotary compressor 100 compresses can be discharged from exhaust port 11.
One end of exhaust valve plate 2 is connected on bearing 1, and the other end of exhaust valve plate 2 covers on exhaust port 11 to open and close exhaust port 11.One end of lift stopper 3 is connected on bearing 1, and the other end of lift stopper 3 is positioned at the side away from exhaust port 11 of exhaust valve plate 2 to limit opening highly of exhaust valve plate 2, thus ensure that the reliability that exhaust valve plate 2 works.
As shown in figs 2-4, the cross-section area of one end away from exhaust valve plate 2 (lower end such as, in Fig. 2) of exhaust port 11 is less than the cross-section area of the other end (upper end such as, in Fig. 2) of exhaust port 11.Such as, exhaust port 11 can be formed as the hole of frustoconic shape, thus when can ensure or reduction constant at the Iinvalid volume of rotary compressor 100, the sealed width L of exhaust port 11 and piston inner diameter side is constant or increase, also help the damping vibration attenuation ability reducing exhaust port 11 pairs of high pressure refrigerant energy simultaneously, thus improve the efficiency of rotary compressor 100.
According to the bearing unit 10 of the embodiment of the present invention, when bearing unit 10 is applied to rotary compressor 100, the cross-section area of the other end of exhaust port 11 is less than by the cross-section area of the one end away from exhaust valve plate 2 making exhaust port 11, thus be convenient to optimize Iinvalid volume, relation between the damping vibration attenuation ability of sealed width L and exhaust port 11 pairs of high pressure refrigerant energy, avoid that aperture because of exhaust port 11 is excessive and Iinvalid volume that is that cause becomes large and sealed width L diminishes, thus avoid piston end surface leakage, can also avoid that the aperture because of exhaust port 11 is too small and exhaust port that is that cause becomes large to the damping vibration attenuation ability of high pressure refrigerant energy simultaneously, improve the efficiency of rotary compressor 100 to a certain extent.
According to some embodiments of the present invention, exhaust port 11 is circular port, and the diameter of above-mentioned one end of exhaust port 11 is d
2, the diameter of the above-mentioned the other end of exhaust port 11 is d
1, wherein, d
1, d
2meet: 1.3>=d
1/ d
2> 1.1, that is, the diameter of one end away from exhaust valve plate 2 of exhaust port 11 is d
2, the diameter near one end of exhaust valve plate 2 is d
1, wherein, d
1, d
2meet: 1.3>=d
1/ d
2> 1.1.Test repeatedly through inventor shows, when making d
1, d
2meet: 1.3>=d
1/ d
2during > 1.1, such as, d is worked as
1=6.5mm, d
2=5.0mm or d
1=7.0mm, d
2=5.5mm or d
1=7.5mm, d
2=6.5mm or d
1=8.5mm, d
2=7.5mm or d
1=9.0mm, d
2during=8.0mm, the relation between the damping vibration attenuation ability of Iinvalid volume, sealed width L and exhaust port 11 pairs of high pressure refrigerant energy can better be optimized, and the efficiency of rotary compressor 100 can be further improved.
According to some embodiments of the present invention, as shown in Figures 2 and 3, exhaust port 11 is configured to axially increase gradually from above-mentioned one end of exhaust port 11 towards the direction cross-section area of the above-mentioned the other end of exhaust port 11 along it, that is, exhaust port 11 is configured to along it axially from the one end away from exhaust valve plate 2 to the one end near exhaust valve plate 2, and cross-section area increases gradually.Such as, exhaust port 11 can be formed as inverted frustoconic shape, thus, not only be conducive to reducing Iinvalid volume, increase the sealed width L of exhaust port 11 and piston inner diameter side, thus reducing the risk of piston end surface leakage to a certain extent, the cross-section area of the exhaust port 11 simultaneously expanded gradually also helps the damping vibration attenuation ability reducing exhaust port 11 pairs of high pressure refrigerant energy, thus effectively improves the compression efficiency of rotary compressor 100.In addition, the processing of exhaust port 11 is simple and cost is low.Be appreciated that exhaust port 11 from above-mentioned one end of exhaust port 11 towards the long-pending situation of change of the direction cross section of the above-mentioned the other end of exhaust port 11 can also according to actual requirement adaptive change, the present invention does not make particular determination to this.
According to some embodiments of the present invention, as shown in Figure 4, exhaust port 11 comprises the first row pore 111 and second row pore 112 that are connected successively vertically, first row pore 111 is positioned at the side away from exhaust valve plate 2 of second row pore 112, wherein second row pore 112 is configured to along its axial one end from exhaust port 11 (such as, lower end in Fig. 4) towards exhaust port 11 the other end (such as, upper end in Fig. 4) direction cross-section area increase gradually, and first row pore 111 can be constant along the cross-section area of its axis, also can be change, such as first row pore 111 and second row pore 112 are all along respective axial one end from exhaust port 11 (such as, lower end in Fig. 4) towards the other end (such as, upper end in Fig. 4) direction cross-section area increase gradually, and the two increases amplitude difference, thus be convenient to optimize Iinvalid volume, relation between the damping vibration attenuation ability of sealed width L and exhaust port 11 pairs of high pressure refrigerant energy, improve the efficiency of compressor rotary compressor 100 to a certain extent.
Further, as shown in Figure 4, first row pore 111 is configured to remain unchanged along its axial cross section is long-pending, thus, first row pore 111 remains unchanged along its axial cross section is long-pending, second row pore 112 axially increases from one end (lower end such as, in Fig. 4) of exhaust port 11 towards the direction cross-section area of the other end (upper end such as, in Fig. 4) of exhaust port 11 gradually along it.Such as, first row pore 111 can be formed as cylindrical, second row pore 112 is formed as inverted frustoconic shape, thus be convenient to the relation effectively optimized between the damping vibration attenuation ability of Iinvalid volume, sealed width L and exhaust port 11 pairs of high pressure refrigerant energy, improve the efficiency of compressor rotary compressor 100 to a certain extent.
Embodiment 1
As shown in Figure 1-Figure 3, bearing unit 10 comprises bearing 1, exhaust valve plate 2 and lift stopper 3.Bearing 1 is formed with circular row pore 11, one end of exhaust valve plate 2 is connected on bearing 1, and the other end of exhaust valve plate 2 covers on exhaust port 11 to open and close exhaust port 11.The cross-section area of exhaust port 11 increases from the one end away from exhaust valve plate 2 gradually to the one end near exhaust valve plate 2.The aperture of one end of the close exhaust valve plate 2 of exhaust port 11 is d
1, the aperture away from one end of exhaust valve plate 2 is d
2, d
1, d
2meet: 1.3>=d
1/ d
2during > 1.1, such as, the result of the inventor's test of many times test shown in table 1, the relation between the damping vibration attenuation ability of Iinvalid volume, sealed width L and exhaust port 11 pairs of high pressure refrigerant energy is optimized.
The Data Comparison table of the Iinvalid volume in table 1 embodiment 1 and sealed width L and prior art
The rotary compressor 100 of embodiment according to a second aspect of the present invention, comprises housing 20, motor, bent axle, cylinder assembly 30 and the above-mentioned bearing unit 10 for rotary compressor 100.Motor, bent axle, cylinder assembly 30 and bearing unit 10 are all arranged in housing 20.Wherein, cylinder assembly 30 comprises slide plate and piston.Motor driven crankshafts rotates to make refrigerant be compressed in compression chamber.Bearing unit 10 is located at least one end in the axial two ends of cylinder assembly 30, and that is, bearing unit 10 can be arranged on the wherein one end in the axial two ends of cylinder assembly 30, also can be arranged on the axial two ends of cylinder assembly 30 simultaneously.
According to the rotary compressor 100 of the embodiment of the present invention, by arranging above-mentioned bearing unit 10, the compression efficiency of rotary compressor 100 can be improved at least to a certain extent.
As shown in Figure 1, the refrigeration system 1000 of embodiment according to a third aspect of the present invention, can comprise above-mentioned rotary compressor 100, condenser 200, vaporizer 300 and throttling arrangement 400.Wherein, rotary compressor 100 has intakeport 50 and relief opening 40, the first end of condenser 200 is connected with relief opening 40, the first end of vaporizer 300 is connected with intakeport 50, throttling arrangement 400 is connected between the second end of condenser 200 and the second end of vaporizer 300, thus forms complete refrigerant flow.
Specifically, refrigerant can enter in rotary compressor 100 from intakeport 50, condenser 200 is discharged to from relief opening 40 after rotary compressor 100 compresses, with outdoor environment heat exchange, from condenser 200 flow out after, flow to throttling arrangement 400, flow to after throttling arrangement 400 reducing pressure by regulating flow vaporizer 300 with indoor environment heat exchange, to room temperature lowering, the refrigerant after heat exchange turns back in rotary compressor 100 through the intakeport 50 of rotary compressor 100.
According to the refrigeration system 1000 of the embodiment of the present invention, by arranging above-mentioned rotary compressor 100, refrigeration can be improved at least to a certain extent.
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 (7)
1. for a bearing unit for rotary compressor, it is characterized in that, comprising:
Bearing, described bearing is formed with exhaust port;
Exhaust valve plate, one end of described exhaust valve plate is connected on described bearing, the other end of described exhaust valve plate covers to open and close described exhaust port on described exhaust port, and the cross-section area of one end away from described exhaust valve plate of described exhaust port is less than the cross-section area of the other end of described exhaust port.
2. the bearing unit for rotary compressor according to claim 1, is characterized in that, described exhaust port is circular port, and the diameter of described one end of described exhaust port is d
2, the diameter of the described the other end of described exhaust port is d
1, wherein, described d
1, d
2meet: 1.3>=d
1/ d
2> 1.1.
3. the bearing unit for rotary compressor according to claim 1, is characterized in that, described exhaust port is configured to axially increase gradually from described one end of described exhaust port towards the direction cross-section area of the described the other end of described exhaust port along it.
4. the bearing unit for rotary compressor according to claim 1, it is characterized in that, described exhaust port comprises the first row pore and second row pore that are connected successively vertically, described first row pore is positioned at the side away from described exhaust valve plate of described second row pore, and wherein said second row pore is configured to axially increase gradually from described one end of described exhaust port towards the direction cross-section area of the described the other end of described exhaust port along it.
5. the bearing unit for rotary compressor according to claim 4, is characterized in that, described first row pore is configured to remain unchanged along its axial cross section is long-pending.
6. a rotary compressor, is characterized in that, comprising:
Housing;
Cylinder assembly, described cylinder assembly is located in described housing; And
The bearing unit for rotary compressor according to any one of claim 1-5, wherein said bearing unit is located at least one end in the axial two ends of described cylinder assembly.
7. a refrigeration system, is characterized in that, comprising:
Rotary compressor according to claim 6, described rotary compressor has intakeport and relief opening;
Condenser, the first end of described condenser is connected with described relief opening;
Vaporizer, the first end of described vaporizer is connected with described intakeport; And
Throttling arrangement, described throttling arrangement is connected between the second end of described condenser and the second end of described vaporizer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510398835.1A CN105041657A (en) | 2015-07-07 | 2015-07-07 | Bearing assembly, rotary compressor with same and refrigerating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510398835.1A CN105041657A (en) | 2015-07-07 | 2015-07-07 | Bearing assembly, rotary compressor with same and refrigerating system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105041657A true CN105041657A (en) | 2015-11-11 |
Family
ID=54448528
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510398835.1A Pending CN105041657A (en) | 2015-07-07 | 2015-07-07 | Bearing assembly, rotary compressor with same and refrigerating system |
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| Country | Link |
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| CN (1) | CN105041657A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106640657A (en) * | 2016-10-24 | 2017-05-10 | 珠海凌达压缩机有限公司 | Flange, compressor and air conditioner system |
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| US20050019189A1 (en) * | 2003-07-23 | 2005-01-27 | Samsung Electronics Co., Ltd. | Variable capacity rotary compressor |
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| CN203962396U (en) * | 2014-06-17 | 2014-11-26 | 广东美芝制冷设备有限公司 | Cooling cycle system and external rotor rotary compressor thereof |
| CN204783680U (en) * | 2015-07-07 | 2015-11-18 | 广东美芝制冷设备有限公司 | Bearing assembly and have its rotary compressor , refrigerating system |
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2015
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85101566A (en) * | 1985-04-01 | 1987-01-17 | 三菱株式会社 | Coolant discharge valve device in the air compressor |
| CN1224805A (en) * | 1997-12-26 | 1999-08-04 | 三电有限公司 | Shape of suction hole and discharge hole of refrigerant compressor |
| US20050019189A1 (en) * | 2003-07-23 | 2005-01-27 | Samsung Electronics Co., Ltd. | Variable capacity rotary compressor |
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| CN106640657A (en) * | 2016-10-24 | 2017-05-10 | 珠海凌达压缩机有限公司 | Flange, compressor and air conditioner system |
| CN106640657B (en) * | 2016-10-24 | 2019-01-04 | 珠海凌达压缩机有限公司 | A kind of flange, compressor and air-conditioning system |
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Application publication date: 20151111 |