CN114151347B - Cylinder, pump body structure, compressor and air conditioner - Google Patents
Cylinder, pump body structure, compressor and air conditioner Download PDFInfo
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- CN114151347B CN114151347B CN202111519275.2A CN202111519275A CN114151347B CN 114151347 B CN114151347 B CN 114151347B CN 202111519275 A CN202111519275 A CN 202111519275A CN 114151347 B CN114151347 B CN 114151347B
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- 238000007906 compression Methods 0.000 claims abstract description 30
- 230000006835 compression Effects 0.000 claims abstract description 21
- 230000004308 accommodation Effects 0.000 claims description 10
- 238000005192 partition Methods 0.000 claims description 9
- 230000000712 assembly Effects 0.000 claims description 3
- 238000000429 assembly Methods 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 230000009471 action Effects 0.000 abstract description 5
- 230000009286 beneficial effect Effects 0.000 description 7
- 239000003507 refrigerant Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 4
- 230000006872 improvement Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/12—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B31/00—Compressor arrangements
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
The invention discloses an air cylinder, a pump body structure, a compressor and an air conditioner. By adopting the structure, when the gas pressure in the compression cavity is overhigh, one part of the compressed gas is exhausted to the external space of the cylinder through the main exhaust structure; the other part is exhausted to the outer space of the cylinder through an auxiliary exhaust structure; two exhaust structure combined action can alleviate cylinder intracavity over-compression fast, avoids high-pressure gas to strike pump body subassembly inner structure, improves operating stability and reliability.
Description
Technical Field
The invention relates to the technical field of compressors, in particular to an air cylinder, a pump body structure, a compressor and an air conditioner.
Background
The rotary compressor has the advantages of high efficiency and low cost, and is continuously expanded to be applied to large-scale air conditioning units; in order to meet the requirement of the gradually increased displacement of the compressor, the existing rotor compressor mainly embodies that the cylinder diameter is increased and the cylinder height is increased in parameter design, so that the resistance of an exhaust port passage is increased, the phenomenon that a cylinder compresses a refrigerant excessively is easily caused in the compressor, the efficiency of the compressor is reduced, abnormal abrasion and other problems caused by load increase are caused, and the reliability of the compressor is poor.
In order to solve the above problems, the related art has adopted increasing the number of exhaust ports or increasing the size of the exhaust ports. But the number of conventional exhaust ports which can be increased is limited due to the structural shape limitation of the compressor; and the excessive size of the discharge port makes it difficult to ensure the sealing, thereby deteriorating the performance of the compressor.
Disclosure of Invention
In view of this, the invention provides a cylinder, a pump body structure, a compressor and an air conditioner, which can quickly relieve over-compression in a cylinder cavity through the combined action of an auxiliary exhaust structure and a main exhaust structure, avoid high-pressure gas from impacting the internal structure of a pump body assembly, and improve the operation stability and reliability.
In order to solve the above problem, according to an aspect of the present application, an embodiment of the present invention provides a cylinder including a main exhaust structure and an auxiliary exhaust structure, inlet ends of the main exhaust structure and the auxiliary exhaust structure are both communicated with a compression chamber of the cylinder, and outlet ends of the main exhaust structure and the auxiliary exhaust structure are both communicated with a space outside the cylinder.
In some embodiments, the auxiliary exhaust structure includes an auxiliary exhaust channel, an auxiliary exhaust hole and an auxiliary exhaust receiving groove, the auxiliary exhaust channel is provided on the inner wall of the cylinder, one end of the auxiliary exhaust channel is communicated with the compression cavity of the cylinder, the other end of the auxiliary exhaust channel is communicated with the auxiliary exhaust receiving groove through the auxiliary exhaust hole, and the auxiliary exhaust receiving groove is communicated with the outer space of the cylinder.
In some embodiments, the auxiliary exhaust receiving groove 23 is located at an end surface of the cylinder or the flange, in which the valve sheet assembly is disposed.
In some embodiments, two auxiliary exhaust structures are provided, wherein the inlet end of one auxiliary exhaust structure is communicated with the compression cavity of the compressor cylinder, and the other end of the auxiliary exhaust structure is communicated with the space outside the cylinder through an upper flange; the inlet end of the other auxiliary exhaust structure is communicated with a compression cavity of the compressor cylinder, and the other end of the auxiliary exhaust structure is communicated with the outer space of the compressor cylinder through a lower flange.
In some embodiments, when two auxiliary exhaust structures are provided, two auxiliary exhaust accommodating grooves are respectively formed in the upper end surface and the lower end surface of the cylinder, and two valve plate assemblies are respectively located in the corresponding auxiliary exhaust accommodating grooves.
In some embodiments, each auxiliary exhaust structure corresponds to at least one auxiliary exhaust channel, the auxiliary exhaust channel is a hole formed in the inner wall of the cylinder, at least two holes are arranged at intervals, and the flow cross-sectional area of each hole is different.
In some embodiments, when two auxiliary exhaust structures are provided, the two auxiliary exhaust passages communicate and the two auxiliary exhaust holes communicate.
In some embodiments, the flow cross-sectional areas of the two auxiliary exhaust vents are different.
In some embodiments, the two auxiliary exhaust ports are at different radial distances from the inner circle of the cylinder.
In some embodiments, at least one auxiliary exhaust passage is obliquely disposed.
In some embodiments, the angle α of the auxiliary exhaust passage with the normal direction of the inner circle of the cylinder satisfies: alpha is less than 60 degrees.
In some embodiments, the auxiliary exhaust passage is a stepped hole penetrating through the inner circle and the outer circle of the cylinder, and a plunger is arranged at a part of the stepped hole, which is located between the auxiliary exhaust passage and the outer circle of the cylinder.
In some embodiments, the main exhaust structure comprises a main exhaust groove, a main exhaust hole and a main exhaust containing groove which are connected in sequence, a main valve plate assembly is arranged in the main exhaust containing groove, the main exhaust groove is arranged on the inner wall of the cylinder, one end of the main exhaust groove is communicated with the cylinder cavity, and the other end of the main exhaust groove is communicated with the main exhaust containing groove through the main exhaust hole.
In some embodiments, two main exhaust structures are provided, wherein the main exhaust receiving groove of one main exhaust structure is located on the upper end surface of the upper flange, and the main exhaust receiving groove of the other main exhaust structure is located on the lower end surface of the lower flange.
According to another aspect of the present application, an embodiment of the present invention provides a pump body structure including the cylinder described above.
In some embodiments, when the pump body structure comprises two cylinders, the inlet of the auxiliary exhaust channel is communicated with the cylinder cavity of the corresponding cylinder, and the outlet is arranged on the upper flange, the lower flange or the partition plate between the two cylinders.
According to another aspect of the present application, an embodiment of the present invention provides a compressor including the pump body structure described above.
According to another aspect of the present application, an embodiment of the present invention provides an air conditioner including the compressor described above.
Compared with the prior art, the cylinder has the following beneficial effects:
when the gas pressure in the compression cavity is overhigh, one part of the compressed gas is exhausted to the outer space of the cylinder through the main exhaust structure; the other part is exhausted to the outer space of the cylinder through an auxiliary exhaust structure; two exhaust structure combined action can alleviate cylinder intracavity over-compression fast, avoids high-pressure gas to strike pump body subassembly inner structure, improves operating stability and reliability.
On the other hand, the pump body structure provided by the invention is designed based on the cylinder, and the beneficial effects of the pump body structure refer to the beneficial effects of the cylinder, which are not described herein again.
On the other hand, the compressor provided by the present invention is designed based on the above sealing structure, and the beneficial effects thereof refer to the beneficial effects of the above sealing structure, which are not repeated herein.
On the other hand, the air conditioner provided by the present invention is designed based on the compressor, and the beneficial effects thereof refer to the beneficial effects of the compressor, which are not described herein again.
The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical solutions of the present invention more clearly understood and to make the technical solutions of the present invention practical in accordance with the contents of the specification, the following detailed description is given of preferred embodiments of the present invention with reference to the accompanying drawings.
Drawings
FIG. 1 is a cross-sectional view of a cylinder with one auxiliary exhaust structure applied to a pump block assembly in accordance with an embodiment of the present invention;
FIG. 2 is a top view of a cylinder employed in a pump block assembly according to an embodiment of the present invention;
FIG. 3 is a diagram showing a path when a cylinder is exhausted in a cylinder according to the embodiment of the present invention;
FIG. 4 is a cross-sectional view of the auxiliary exhaust structure applied to the pump body assembly when two auxiliary exhaust structures are provided in the cylinder according to the embodiment of the present invention;
FIG. 5 is a cross-sectional view of a cylinder with two auxiliary exhaust passages in communication and two auxiliary exhaust ports in communication according to an embodiment of the present invention;
FIG. 6 is a cross-sectional view of a cylinder in which three auxiliary exhaust ports are not communicated according to an embodiment of the present invention;
FIG. 7 is a sectional view of a cylinder in which an auxiliary exhaust passage is obliquely provided in the cylinder according to the embodiment of the invention;
FIG. 8 is a schematic diagram of an auxiliary exhaust passage included with a cylinder normal to the inner circle of the cylinder according to an embodiment of the present invention;
FIG. 9 is a cross-sectional view of a cylinder with a plunger disposed in an auxiliary exhaust passage in the cylinder according to an embodiment of the present invention;
FIG. 10 is another cross-sectional view of a cylinder employed in the pump body assembly according to an embodiment of the present invention;
FIG. 11 is a cross-sectional view of a pump body assembly provided by an embodiment of the present invention;
FIG. 12 is a top view of a pump body assembly provided by an embodiment of the present invention;
FIG. 13 is another top view of a pump body assembly provided by an embodiment of the present invention;
FIG. 14 is another top view of a pump body assembly provided by an embodiment of the present invention;
FIG. 15 is a trend graph of auxiliary exhaust passage versus exhaust loss and volume according to the present invention;
FIG. 16 is a graph comparing PV curves for a compressor in accordance with an embodiment of the present invention;
fig. 17 is a graph showing performance improvement of a compressor according to an embodiment of the present invention.
Wherein:
1. a main exhaust structure; 2. an auxiliary exhaust structure; 3. an upper flange; 4. a lower flange; 5. a partition plate; 11. a main exhaust duct; 12. a main exhaust vent; 13. a primary exhaust accommodation groove; 14. a main valve spool assembly; 21. an auxiliary exhaust passage; 22. an auxiliary exhaust hole; 23. an auxiliary exhaust accommodating groove; 24. a valve plate assembly; 25. a second auxiliary exhaust passage; 211. and a plunger.
Detailed Description
To further illustrate the technical means and effects of the present invention adopted to achieve the predetermined objects, the following detailed description of the embodiments, structures, characteristics and effects according to the present invention will be made with reference to the accompanying drawings and preferred embodiments. In the following description, different "one embodiment" or "an embodiment" refers to not necessarily the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.
In the description of the present invention, it is to be understood that the terms "vertical", "lateral", "longitudinal", "front", "rear", "left", "right", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description of the present invention, and do not mean that the device or member to which the present invention is directed must have a specific orientation or position, and thus, cannot be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in a specific case to those of ordinary skill in the art.
Example 1
The present embodiment provides a cylinder, as shown in fig. 1, the cylinder includes a main exhaust structure 1 and an auxiliary exhaust structure 2, inlet ends of the main exhaust structure 1 and the auxiliary exhaust structure 2 are both communicated with a compression cavity of the cylinder, and outlet ends are both communicated with an external space of the cylinder.
Specifically, the cylinder that this embodiment provided is applied on rotary compressor, and generally, rotary compressor's pump body rotor subassembly includes motor rotor and the pump body subassembly with bent axle complex, and the pump body subassembly includes upper flange, lower flange and bent axle, and wherein, the major axis part of bent axle cooperatees with the upper flange hole, and bent axle minor axis part cooperatees with the lower flange, has arranged first cylinder and/or second cylinder between upper flange and lower flange. A roller and a slide sheet are respectively arranged in the first cylinder and the second cylinder, and the roller is respectively sleeved on the eccentric part of the crankshaft; the first cylinder and the second cylinder are separated by the first partition plate and the second partition plate, the upper flange, the first cylinder and the first partition plate form a first compression cavity, and the lower flange, the second cylinder and the second partition plate form a second compression cavity. The motor rotor is selected under the action of the stator magnetic field to drive the crankshaft to rotate. And then the roller is driven to rotate, the refrigerant is compressed, and finally, the high-pressure refrigerant in the cylinder is discharged out of the cylinder and finally discharged out of the pump body assembly of the compressor.
In the above configuration of the rotary compressor, the exhaust path is: the end surface of the cylinder is provided with an exhaust groove, and the flange or the clapboard is provided with an exhaust hole and an exhaust accommodating groove; when the compressor pump body assembly starts to exhaust and the exhaust pressure reaches the opening value of the exhaust valve plate, gas enters the inner cavity of the shell through the exhaust groove of the cylinder, the exhaust hole on the flange or the partition plate and the exhaust valve plate which is opened, and primary exhaust is finished; the exhaust structure can not meet the requirements of a large-cylinder-diameter and large-cylinder-height structure of a large-displacement rotor machine, the refrigerant of a compression cavity is excessively compressed in the exhaust process easily because the resistance of an exhaust port passage is large, the efficiency of the compressor is reduced, abnormal abrasion and other problems caused by load increase are induced, and the reliability of the compressor is poor.
In the cylinder provided in the present embodiment, as shown by the arrows in fig. 1 and 3, the exhaust path is: when the gas pressure in the compression cavity is overhigh, one part of the compressed gas is discharged to the space outside the cylinder through the main exhaust structure 1; the other part is discharged to the space outside the cylinder through the auxiliary exhaust structure 2; two exhaust structure combined action can alleviate cylinder intracavity over-compression fast, avoids high-pressure gas to strike pump body subassembly inner structure, improves operating stability and reliability.
In a specific embodiment:
as shown in fig. 1 and 2, the auxiliary exhaust structure 2 includes an auxiliary exhaust passage 21, an auxiliary exhaust hole 22, and an auxiliary exhaust receiving groove 23, the auxiliary exhaust receiving groove is formed on the inner wall of the cylinder, one end of the auxiliary exhaust receiving groove is communicated with the compressor of the cylinder, and the other end of the auxiliary exhaust receiving groove is communicated with the auxiliary exhaust hole 23 through the auxiliary exhaust hole 22.
Specifically, when exhausting, a part of the compressed gas is exhausted to the space outside the cylinder through the auxiliary exhaust passage 21, the auxiliary exhaust hole 22 and the auxiliary exhaust receiving groove 23, and enters the housing inner cavity of the compressor.
In a specific embodiment:
the auxiliary exhaust accommodating groove 23 is positioned on the end surface of the cylinder or the flange, and a valve plate assembly 24 is arranged in the auxiliary exhaust accommodating groove; thus, when the gas pressure in the compression cavity is overhigh, one part of the compressed gas is discharged to the space outside the cylinder through the main exhaust structure 1; the other part enters the auxiliary exhaust accommodation groove 23 through the auxiliary exhaust passage 21 and the auxiliary exhaust hole 22, and when the gas pressure is sufficient, the valve sheet assembly 24 is opened by the gas pressure, so that the gas is exhausted to the space outside the cylinder. That is, in the present embodiment, the auxiliary exhaust receiving groove 23 is used for placing the valve sheet assembly 24, and the valve sheet assembly 24 includes the baffle, the valve sheet, the auxiliary fixing member, and the like.
In a specific embodiment:
as shown in fig. 4, the auxiliary exhaust accommodation grooves 23 are located on the cylinder, when the auxiliary exhaust structure 2 is provided in two, the two auxiliary exhaust accommodation grooves 23 are respectively opened on the upper end surface and the lower end surface of the cylinder, and the two valve sheet assemblies 24 are respectively located in the corresponding auxiliary exhaust accommodation grooves 23.
In this structure, as shown by the arrows in fig. 4, when the gas pressure in the compression chamber is too high, the compressed gas is discharged through the auxiliary discharge structure 2 provided on the upper end surface of the cylinder in the first path, and through the auxiliary discharge structure 2 provided on the lower end surface of the cylinder in the second path, and of course, part of the compressed gas is discharged through the main discharge structure 1. Two or one main exhaust structures 1 may be provided, and fig. 4 is a schematic structural view of the main exhaust structures 1 when two main exhaust structures are provided.
In the above structure, each auxiliary exhaust structure 2 may correspond to one auxiliary exhaust passage 21, two auxiliary exhaust passages 21 may communicate, and two auxiliary exhaust holes 22 communicate, as shown in fig. 5.
In the above structure, two auxiliary channels may correspond to each auxiliary exhaust structure 2, and the plurality of auxiliary exhaust channels 21 are not communicated, as shown in fig. 6, one auxiliary exhaust structure 2 corresponds to one auxiliary exhaust channel 21, the other auxiliary exhaust structure 2 corresponds to two auxiliary exhaust channels 21, and the three auxiliary exhaust channels 21 are communicated; in order to improve the noise of different frequency bands of the compressor, the three auxiliary exhaust passages 21 have different flow cross-sectional areas, i.e., different diameters (e.g., d1, d2, and d3 in fig. 6); that is to say: the aperture size and the position of the hole can be designed according to specific conditions so as to improve the noise of different frequency bands.
More specifically, in order to reduce the air pressure in the cylinder chamber more quickly, at least two holes are communicated; in addition, the aperture size and the position of the hole can be designed according to specific conditions so as to improve the noise of different frequency bands.
Moreover, as shown in fig. 6, the two auxiliary exhaust holes 22 have different cross-sectional flow areas, i.e., D1 and D2 are different, and the two auxiliary exhaust holes 22 have different radial distances from the inner circle of the cylinder, i.e., L1 and L2 are different, so that noise improvement in different frequency bands can be simultaneously achieved.
As shown in fig. 7, β and γ indicate the angles of the auxiliary exhaust passage 21 with respect to the cylinder inner wall. For the convenience of machining, β and γ may be set at a certain angle other than perpendicular, that is, the auxiliary exhaust passage is an inclined hole machined along the inner wall of the cylinder.
As shown in fig. 8, the radial angle of the auxiliary exhaust passage 21 in the compressor, i.e. the included angle α between the auxiliary exhaust passage 21 and the normal direction of the inner circle of the cylinder, satisfies: alpha is less than 60 degrees; when alpha is less than 60 degrees, as shown in fig. 15, the compressor has long effective exhaust time and small clearance, avoids high-pressure and low-pressure air leakage caused by refrigerant backflow, has small exhaust loss and high volumetric efficiency, can quickly relieve over-compression in the cylinder cavity, and is more stable and reliable in operation.
As shown in fig. 9, the auxiliary exhaust passage 21 is a stepped hole penetrating the inner and outer circles of the cylinder, and a plunger 211 is disposed at a portion of the stepped hole located between the auxiliary exhaust passage 21 and the outer circle of the cylinder; the plungers 211 are in interference fit with the corresponding auxiliary exhaust passages 21; the structure can solve the problem of over-compression, can further simplify the processing technology of the auxiliary exhaust passage, and can avoid the adverse effects of noise, vibration and the like caused by the direct impact of airflow on the shell.
In a specific embodiment:
as shown in fig. 10, when two auxiliary exhaust structures 2 are provided, two auxiliary exhaust receiving grooves 23 are respectively formed on the upper end surface of the upper flange 3 and the lower end surface of the lower flange 4, two auxiliary exhaust holes 22 corresponding to the two auxiliary exhaust receiving grooves 23 are respectively formed on the lower end surface of the upper flange 3 and the upper end surface of the lower flange 4, the two auxiliary exhaust holes 22 are communicated with each other through a second auxiliary exhaust channel 25, and the second auxiliary exhaust channel 25 is communicated with the two auxiliary exhaust channels 21.
In a specific embodiment:
the main exhaust structure 1 comprises a main exhaust groove 11, a main exhaust hole 12 and a main exhaust containing groove 13 which are sequentially connected, a main valve plate assembly 14 is arranged in the main exhaust containing groove 13, the main exhaust groove 11 is arranged on the inner wall of the cylinder, one end of the main exhaust groove is communicated with the cylinder cavity, and the other end of the main exhaust groove is communicated with the main exhaust containing groove 13 through the main exhaust hole 12.
Specifically, when exhausting, a part of the compressed gas is exhausted to the space outside the cylinder through the main exhaust groove 11, the main exhaust hole 12 and the main exhaust accommodating groove 13, and enters the inner cavity of the shell of the compressor.
More specifically, similar to the auxiliary exhaust structure, the main exhaust structure 1 is provided with two main exhaust holding grooves 13, wherein the main exhaust holding groove 13 of one main exhaust structure 1 is positioned on the upper end surface of the upper flange 3, and the main exhaust holding groove 13 of the other main exhaust structure 1 is positioned on the lower end surface of the lower flange 4; the provision of the two main exhaust structures 1 can accelerate the reduction of the air pressure in the cylinder.
According to the air cylinder provided by the embodiment, the auxiliary exhaust channel communicated with the air cylinder compression cavity is additionally arranged on the inner wall of the air cylinder, so that the over-compression in the exhaust process of the compressor can be effectively reduced; the valve plate assembly is arranged at the outlet of the auxiliary exhaust channel, so that gas in the auxiliary exhaust channel can be prevented from flowing backwards, and the adverse effects of high power consumption, poor reliability and the like on the compressor caused by over-compression or hydraulic compression of the compressor are effectively reduced; and the cylinder that this embodiment provided simple structure, processing is convenient, easily promotes.
Example 2
This embodiment provides a pump body structure including the cylinder in embodiment 1.
Specifically, the pump body structure provided by the embodiment is suitable for a pump body with a single-cylinder or double-cylinder structure;
when only having a cylinder, supplementary exhaust structure 2's exit end can set up on the flange that corresponds, also can set up on the cylinder, correspondingly, exit end is supplementary exhaust accommodation groove 23 promptly, that is to say supplementary exhaust accommodation groove 23 can set up on the flange, also can set up on the cylinder, because valve block assembly 24 sets up in supplementary exhaust accommodation groove 23, consequently makes valve block assembly 24 can set up on the flange, also can set up on the cylinder.
When there are two cylinders, be last cylinder and lower cylinder respectively, go up the cylinder and be provided with baffle and lower baffle between the cylinder down, if every cylinder corresponds two supplementary exhaust structure 2 this moment, then go up the exhaust holding tank 23 setting of certain supplementary exhaust structure 2 that the cylinder corresponds on last baffle, the exhaust holding tank setting of certain supplementary exhaust structure 2 that the cylinder corresponds down is on the baffle down.
Specifically, as shown in fig. 11 to 14, when there are two cylinders, the auxiliary exhaust structure 2 of the two corresponding upper cylinders is located on the upper flange 3 at the auxiliary exhaust receiving groove 23 of one auxiliary exhaust structure 2, and the other auxiliary exhaust structure 2 is located on the partition plate.
Example 3
This embodiment provides a compressor including the pump body structure in embodiment 2.
Fig. 16 is a graph comparing PV curves of the compressor of the present embodiment and the compressor of the prior art, and a sharp protrusion in the curve corresponds to an over-compression phenomenon, so that the auxiliary exhaust channel structure of the compressor of the present embodiment effectively reduces the resistance of the exhaust passage, reduces the deformation and wear of the high-pressure gas in the compression cavity to the pump body parts, reduces the power consumption of the compressor, and enhances the reliability of the compressor. Meanwhile, the auxiliary exhaust channel of the embodiment discharges part of the high-pressure refrigerant, so that the suction quantity of the refrigerant in the compression cavity can be properly increased, and the improvement of the refrigerating capacity of the compressor is facilitated.
Fig. 17 is a comparison diagram of performance improvement of the compressor according to the features of the present embodiment, and under a normal national standard working condition, the power consumption of the compressor based on the features of the present embodiment is significantly reduced, so that the energy efficiency of the compressor is improved by about 3% -4%.
Example 4
This embodiment provides an air conditioner including the pump body structure in embodiment 3.
In summary, it is easily understood by those skilled in the art that the advantageous technical features described above can be freely combined and superimposed without conflict.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and any simple modification, equivalent change and modification made to the above embodiment according to the technical spirit of the present invention are still within the scope of the technical solution of the present invention.
Claims (12)
1. A cylinder is characterized by comprising a main exhaust structure (1) and an auxiliary exhaust structure (2), wherein the inlet ends of the main exhaust structure (1) and the auxiliary exhaust structure (2) are communicated with a compression cavity of the cylinder, and the outlet ends of the main exhaust structure and the auxiliary exhaust structure are communicated with the space outside the cylinder; the two auxiliary exhaust structures (2) are arranged, wherein the inlet end of one auxiliary exhaust structure (2) is communicated with a compression cavity of a compressor cylinder, and the other end of the auxiliary exhaust structure is communicated with the outer space of the cylinder through an upper flange (3); the inlet end of the other auxiliary exhaust structure (2) is communicated with a compression cavity of a compressor cylinder, and the other end of the auxiliary exhaust structure is communicated with the outer space of the compressor cylinder through a lower flange (4);
the auxiliary exhaust structure (2) comprises an auxiliary exhaust channel (21), an auxiliary exhaust hole (22) and an auxiliary exhaust accommodating groove (23), the auxiliary exhaust channel (21) is formed in the inner wall of the cylinder, one end of the auxiliary exhaust channel is communicated with a compression cavity of the cylinder, the other end of the auxiliary exhaust channel is communicated with the auxiliary exhaust accommodating groove (23) through the auxiliary exhaust hole (22), and the auxiliary exhaust accommodating groove (23) is communicated with the outer space of the cylinder;
the flow cross-sectional areas of the two auxiliary exhaust holes (22) are different; the two auxiliary exhaust holes (22) have different radial distances from the inner circle of the cylinder; at least one auxiliary exhaust channel (21) is obliquely arranged; the included angle alpha between the auxiliary exhaust channel (21) and the normal direction of the inner circle of the cylinder meets the following requirements: alpha is less than 60 degrees.
2. Cylinder according to claim 1, wherein the auxiliary exhaust receiving groove (23) is located at the end face of the cylinder or flange, in which the valve plate assembly (24) is located.
3. The cylinder according to claim 2, wherein when the auxiliary exhaust structure (2) is provided in two, two auxiliary exhaust accommodation grooves (23) are respectively formed in the upper end surface and the lower end surface of the cylinder, and two valve plate assemblies (24) are respectively located in the corresponding auxiliary exhaust accommodation grooves (23).
4. A cylinder according to claim 3, characterized in that each auxiliary exhaust structure (2) corresponds to at least one auxiliary exhaust channel (21), the auxiliary exhaust channels (21) are holes arranged on the inner wall of the cylinder, at least two holes are arranged at intervals, and the flow cross-sectional area of each hole is different.
5. A cylinder according to claim 1, characterized in that when the auxiliary exhaust structure (2) is provided in two, the two auxiliary exhaust passages (21) communicate and the two auxiliary exhaust holes (22) communicate.
6. The cylinder according to claim 1, characterized in that the auxiliary exhaust passage (21) is a stepped hole penetrating the inner and outer circumferences of the cylinder, and the part of the stepped hole between the auxiliary exhaust passage (21) and the outer circumference of the cylinder is provided with a plunger (211).
7. The cylinder according to any one of claims 1 to 2, wherein the main exhaust structure (1) comprises a main exhaust groove (11), a main exhaust hole (12) and a main exhaust receiving groove (13) which are connected in sequence, the main exhaust receiving groove (13) is internally provided with a main valve plate assembly (14), the main exhaust groove (11) is opened on the inner wall of the cylinder, one end of the main exhaust groove is communicated with the cylinder cavity, and the other end of the main exhaust groove is communicated with the main exhaust receiving groove (13) through the main exhaust hole (12).
8. A cylinder according to claim 7, characterized in that the main exhaust structure (1) is provided in two, wherein the main exhaust receiving groove (13) of one of the main exhaust structures (1) is located on the upper end face of the upper flange (3) and the main exhaust receiving groove (13) of the other main exhaust structure (1) is located on the lower end face of the lower flange (4).
9. A pump body structure, characterized in that it comprises a cylinder according to any one of claims 1 to 8.
10. The pump body structure according to claim 9, characterized in that, when the pump body structure comprises two cylinders, the inlet of the auxiliary exhaust structure (2) communicates with the cylinder cavity of the corresponding cylinder, and the outlet is provided on the upper flange (3), the lower flange (4) or on the partition (5) between the two cylinders.
11. A compressor, characterized by comprising a pump body structure according to claim 9 or 10.
12. An air conditioner characterized by comprising the compressor of claim 11.
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| CN202111519275.2A CN114151347B (en) | 2021-12-13 | 2021-12-13 | Cylinder, pump body structure, compressor and air conditioner |
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| CN114151347B true CN114151347B (en) | 2023-02-24 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR102508198B1 (en) * | 2021-10-21 | 2023-03-10 | 엘지전자 주식회사 | Rotary compressor |
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| CN111963432A (en) * | 2020-07-24 | 2020-11-20 | 珠海格力电器股份有限公司 | Compressor and air conditioner |
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| CN114151347A (en) | 2022-03-08 |
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