CN115306715A - Variable-capacity compressor and air conditioning system - Google Patents
Variable-capacity compressor and air conditioning system Download PDFInfo
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- CN115306715A CN115306715A CN202211019774.XA CN202211019774A CN115306715A CN 115306715 A CN115306715 A CN 115306715A CN 202211019774 A CN202211019774 A CN 202211019774A CN 115306715 A CN115306715 A CN 115306715A
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- 238000004378 air conditioning Methods 0.000 title claims abstract description 14
- 238000005192 partition Methods 0.000 claims abstract description 33
- 238000004891 communication Methods 0.000 claims description 43
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims 2
- 230000010349 pulsation Effects 0.000 abstract description 54
- 230000007246 mechanism Effects 0.000 abstract description 19
- 238000009792 diffusion process Methods 0.000 abstract description 3
- 239000007788 liquid Substances 0.000 description 17
- 230000000694 effects Effects 0.000 description 11
- 230000002159 abnormal effect Effects 0.000 description 9
- 238000006073 displacement reaction Methods 0.000 description 9
- 239000003507 refrigerant Substances 0.000 description 5
- 238000013461 design Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 241000521257 Hydrops Species 0.000 description 2
- 206010030113 Oedema Diseases 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 235000013547 stew Nutrition 0.000 description 1
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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
- F04C23/00—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids
- F04C23/001—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids of similar working principle
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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
- F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
- F04C18/30—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
- F04C18/34—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members
- F04C18/356—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the outer member
- F04C18/3562—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the outer member the inner and outer member being in contact along one line or continuous surfaces substantially parallel to the axis of rotation
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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
- F04C29/06—Silencing
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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
- F04C2240/00—Components
- F04C2240/20—Rotors
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
- Rotary Pumps (AREA)
Abstract
The invention provides a variable capacity compressor and an air conditioning system, wherein the variable capacity compressor comprises: the gas diffusion device comprises a first cylinder, a first slip sheet and a first partition plate, wherein a slip sheet groove is formed in the first cylinder, at least part of the first slip sheet is arranged in the slip sheet groove, a slip sheet tail cavity is further formed in the first cylinder, the slip sheet tail cavity is communicated with the slip sheet groove, an expansion cavity is formed in the first partition plate, and can be communicated with the slip sheet tail cavity to guide gas in the slip sheet tail cavity into the expansion cavity. According to the capacity expansion mechanism for expanding the tail cavity of the sliding vane, the effective volume of the tail cavity of the sliding vane can be greatly increased, so that the pressure pulsation of the tail cavity of the variable-capacity sliding vane under the conventional working condition can be effectively reduced, and the high-frequency vibration and the noise of the compressor are further reduced.
Description
Technical Field
The invention relates to the technical field of compressors, in particular to a variable-capacity compressor and an air conditioning system.
Background
Along with the increasing growth of the multi-split air conditioner market, the capacity output range of a multi-split air conditioner system to a compressor is wider and wider, particularly, the output capacity of the compressor required when the multi-split air conditioner is only provided with one indoor unit is very small, the minimum output capacity of an ordinary double-cylinder variable frequency compressor cannot meet the system requirement, the output cold quantity is excessive, the compressor can be frequently started and stopped, the power consumption of the compressor is high, and meanwhile, when the frequency of the compressor is too low, the volumetric efficiency and the motor efficiency of the compressor are greatly reduced, and the low-frequency operation energy efficiency of the compressor is low. In order to obtain the output of the high efficiency of low cold volume on original basis, frequency conversion varactor compressor has obtained quick development, and frequency conversion varactor compressor adopts the double-cylinder structure promptly, through increasing switching structure, realizes that frequency conversion compressor single cylinder, double-cylinder two kinds of mode operation. Double cylinders are used under heavy load, and a single cylinder is used under light load. Similar function patents such as patents CN201410805892, CN101091063A, CN113757115a, etc. all refer to the variable capacity function of the compressor. To achieve this function, the vane slot of the variable displacement cylinder is sealed to introduce high or low pressure into the vane slot to control the movement of the vane. However, when the double-cylinder operation of the variable-capacity compressor is carried out, because the variable-capacity slide sheet reciprocates at a high speed in the sealed slide sheet groove, the volume of the tail cavity of the sealed slide sheet groove is small, and the internal pressure pulsation is larger than that of the suction and exhaust of the compressor, the high-frequency vibration noise of the compressor is aggravated; especially, the compressor starts the easy hydrops of gleitbretter groove tail chamber after low temperature environment stews for a long time, and the pressure pulsation in gleitbretter tail chamber increases by a wide margin this moment, and the pulsation value is greater than the minimum pressure that the single double-cylinder of varactor compressor switched, leads to varactor mechanism start-up phase to become invalid, and the single double-cylinder of compressor frequently switches, and the gleitbretter produces the striking and sends the abnormal sound, seriously influences user experience.
The variable-capacity compressor and the air conditioning system are researched and designed according to the invention, because the technical problems of high-frequency vibration, noise and the like caused by pressure pulsation in the tail cavity of the sliding vane of the variable-capacity compressor in the prior art are solved.
Disclosure of Invention
Therefore, the technical problem to be solved by the present invention is to overcome the defect that the pressure pulsation exists in the trailing cavity of the sliding vane of the variable displacement compressor in the prior art, which results in the generation of high frequency vibration and noise, thereby providing a variable displacement compressor and an air conditioning system.
In order to solve the above problems, the present invention provides a variable capacity compressor, comprising:
the gas diffusion device comprises a first cylinder, a first slip sheet and a first partition plate, wherein a slip sheet groove is formed in the first cylinder, at least part of the first slip sheet is arranged in the slip sheet groove, a slip sheet tail cavity is further formed in the first cylinder, the slip sheet tail cavity is communicated with the slip sheet groove, an expansion cavity is formed in the first partition plate, and can be communicated with the slip sheet tail cavity to guide gas in the slip sheet tail cavity into the expansion cavity.
In some embodiments, further comprising a first roller and a first bearing, the first cylinder having a hollow cavity, the first roller disposed in the hollow cavity,
the first bearing is located between the first cylinder and the first partition plate, an expansion channel is arranged on the first bearing, and one end of the expansion channel can be communicated with the sliding piece tail cavity and the other end of the expansion channel is communicated with the expansion cavity.
In some embodiments, the trailing cavity comprises a first trailing cavity in communication with the radially outboard end of the vane slot and a second trailing cavity, the first vane comprising a leading portion engageable with the first roller and a trailing portion movable into the trailing cavity; the second vane tail cavity is in communication with the first vane tail cavity.
In some embodiments, the second slider tail cavity includes a first connecting slot and a first cavity, the first connecting slot communicating with the first slider tail cavity, the first cavity communicating with the first connecting slot, the first cavity communicating with the volume expansion channel on the first bearing.
In some embodiments, in a cross section of the first cylinder, the first cavity is in a strip-shaped groove structure, one end of the first cavity is communicated with the first connecting groove, the other end of the first cavity extends in a direction away from the first connecting groove, and the other end of the first cavity is located on one side of the slide sheet groove; the first connecting groove is also in a strip-shaped groove structure, one end of the first connecting groove is communicated with the first cavity, and the other end of the first connecting groove is positioned on the other side of the slide sheet groove; namely, the other end of the first connecting groove and the other end of the first cavity are positioned at two sides of the sliding sheet groove, and the sliding sheet groove is positioned in the middle; the first sliding vane tail cavity is a through hole which penetrates through the first cylinder in the axial direction, and at least part of the structure of the first sliding vane tail cavity is located inside the first connecting groove.
In some embodiments, in a cross-sectional plane through the axis of the first cylinder, the first cavity includes a first portion and a second portion, both of which are groove structures, the first portion communicating with the second portion, the first portion being located radially inward of the second portion, the second portion communicating the first communication groove with the first portion, the first portion communicating the second portion with the flash passage.
In some embodiments, the first portion and the second portion are both slots extending in an axial direction of the first cylinder, and an axial height of the first portion is less than an axial height of the second portion; the first part extends axially from the end face of the first cylinder, which meets the first bearing, and the second part also extends axially from the end face of the first cylinder, which meets the first bearing; the dilatation passageway is from the axial one terminal surface of first bearing runs through to the groove of axial another terminal surface along the axial.
In some embodiments, the first cavity has an area, S, in a cross-section of the first cylinder; the cross section of the dilatation channel is a round hole, the diameter of the hole is D, and S/3 is less than or equal to 1/4 pi D 2 ≤S。
In some embodiments, the second slide piece tail cavity further includes a pressure communicating groove, the pressure communicating groove is communicated with the first communicating groove, and the pressure communicating groove can be filled with gas with pressure to act on the tail portion of the first slide piece through the first communicating groove and the first slide piece tail cavity, so as to control locking or unlocking of the first slide piece, and thus control unloading or loading of the first roller.
In some embodiments, the variable displacement compressor further includes a pressure switching channel, the pressure switching channel is capable of introducing gas under pressure from outside the variable displacement compressor, the pressure communication groove is a through hole that penetrates from one axial end face of the first cylinder to the other axial end face, and a communication hole is further provided inside the first cylinder, one end of the communication hole communicates with the pressure switching channel, and the other end of the communication hole communicates with the pressure communication groove.
In some embodiments, the pressure communication groove is a kidney-shaped hole in a cross section of the first cylinder.
In some embodiments, the expansion cavity is an accommodating cavity disposed inside the first partition plate, the first partition plate is further provided with a second communicating groove, one end of the second communicating groove is communicated with the expansion channel of the first bearing, and the other end of the second communicating groove is communicated with the expansion cavity.
In some embodiments, the expansion cavity is formed by extending from an axial end face of the first partition plate, which is connected with the first cover plate, to the other axial end face, and the first cover plate forms a seal for the expansion cavity.
The invention also provides an air conditioning system comprising the variable capacity compressor of any one of the preceding claims.
The variable-capacity compressor and the air conditioning system provided by the invention have the following beneficial effects:
1. according to the expansion mechanism, the expansion cavity is formed in the first partition plate and can be communicated with the sliding vane tail cavity, so that the expansion mechanism for expanding the sliding vane tail cavity is effectively formed, the effective volume of the sliding vane tail cavity can be greatly increased, the pressure pulsation of the variable-volume sliding vane tail cavity under the conventional working condition can be effectively reduced, and the high-frequency vibration and the noise of the compressor are further reduced; the expansion channel is arranged on the first bearing connected with the first cylinder, one end of the expansion channel is communicated with the tail cavity of the sliding vane, and the other end of the expansion channel is communicated with the expansion cavity to form an expansion communication passage; the volume of the original first sliding vane tail cavity can be further expanded through the design of the second sliding vane tail cavity, the effect of further expansion is achieved, the pressure pulsation of the variable-volume sliding vane tail cavity under the conventional working condition is further reduced, the high-frequency vibration and noise of the compressor are reduced, the pressure pulsation of the variable-volume sliding vane cavity (low-temperature static start) with liquid can be reduced effectively, and the abnormal sound caused by sliding vane collision due to the failure of a variable-volume mechanism is avoided; according to the invention, through the design of the first communicating groove, the first communicating groove can extend towards the opposite direction of the first cavity while communicating the first cavity and the first sliding piece tail cavity, so that the first communicating groove can form a channel for further expansion, the pressure pulsation of the sliding piece tail cavity is further reduced, and the noise is reduced; in addition, through the arrangement of the pressure communication groove, external pressure can be introduced into the tail cavity of the first sliding piece through the pressure communication groove so as to control the first sliding piece, and the pressure communication groove plays a role and effect of further expanding the volume, so that the pressure pulsation of the tail cavity of the sliding piece is further reduced, and the noise is reduced;
2. the invention also limits the relation between the expansion channel D and the cross section area S of the first cavity, so that the pressure pulsation of the tail cavity of the variable-volume sliding vane is in a relatively small level, the sudden change of the pressure pulsation of the tail cavity of the variable-volume sliding vane with liquid is avoided, the problems that the variable-volume mechanism fails in the starting stage, the single and double cylinders of the compressor are frequently switched, and the sliding vane is impacted to generate abnormal sound due to the failure of the variable-volume mechanism are solved, and the use effect of a user is improved.
Drawings
FIG. 1 is a partial cross-sectional view of a pump body portion of the variable capacity compressor of the present invention;
FIG. 2 is a block diagram of an air conditioning system having a variable capacity compressor of the present invention;
FIG. 3 is a schematic cross-sectional view of the lower end face of the displacement-varying cylinder of the displacement-varying compressor of the present invention;
FIG. 4 is a graph of pressure pulsations for a variable displacement compressor of the present invention when the trailing cavity of the sliding vane is operated with liquid.
The reference numbers are given as:
1. a housing assembly; 2. a motor stator; 3. a motor rotor; 4. a crankshaft; 5. an upper bearing; 6. an upper cylinder; 7. an upper roller; 8. a second separator; 9. a first cylinder; 91. a slide groove; 92. a communicating hole; 10. a first roller; 11. a first bearing; 12. a first cover plate; 12a, a first separator; 13. a lower cover; 14. a pin spring; 15. a pin; 16. a first slip sheet; 161. a head portion; 162. a tail portion; 17. an upper sliding sheet; 18. a high pressure channel; 19. an air suction pipe is arranged below the liquid separator; 20. an upper air suction pipe of the liquid separator; 21. a pressure control line; 22. a low-pressure solenoid valve; 23. a high-pressure solenoid valve; 24. an air conditioning system; 25. a sliding vane tail cavity; 25a, an expansion cavity; 25b, a second communicating groove; 26. an expansion channel; 27. an upper cover assembly; 28. a dispenser assembly; 81. a pressure switching channel;
251. a first slider tail cavity; 252. a second sliding vane tail cavity; 2521. a first connecting groove; 2522. a first chamber; 25221. a first portion; 25222. a second portion; 2523. the pressure is communicated with the groove.
Detailed Description
As shown in fig. 1 to 4, the present invention provides a variable capacity rolling rotor type compressor having a variable capacity cylinder for unloading and operating and a continuously operating cylinder, and having two modes of single cylinder operation and double cylinder operation.
The cavity at the tail part of the sliding sheet of the variable-volume cylinder in the compressor is in a sealed state and is not communicated with high-pressure gas in the shell. The head of the pin 15 is provided with a spring which is positioned in a pin hole of the first bearing 11, the upper end of the pin hole is communicated with the tail cavity 25 of the sliding vane, and the lower end of the pin hole is communicated with high-pressure oil in the shell through the first partition plate 12a and the high-pressure channel 18 of the first cover plate 12 in sequence; when the compressor operates in a double-cylinder mode, the high-pressure electromagnetic valve 23 is opened, the low-pressure electromagnetic valve 22 is closed, the tail cavity 25 of the sliding vane is communicated with the exhaust of the compressor, when the compressor operates in the double-cylinder mode, the variable-capacity sliding vane reciprocates in the sealed sliding vane groove at a high speed, and because the tail cavity of the sealed sliding vane groove is small in volume, the internal pressure pulsation is large relative to the suction and exhaust of the compressor, so that the high-frequency vibration noise of the compressor is aggravated; the compressor starts the easy hydrops in gleitbretter groove tail chamber after low temperature environment is stood for a long time, and the pressure pulsation in gleitbretter tail chamber increases by a wide margin this moment, and the pulsation value is greater than the minimum pressure that variable volume compressor list double-cylinder switched, leads to variable volume mechanism start-up phase to become invalid, and the single double-cylinder of compressor frequently switches, and the gleitbretter produces the striking and sends the abnormal sound, seriously influences user experience.
In order to solve the problem that the high-frequency vibration noise of the compressor is aggravated due to the fact that the volume of a tail cavity of a closed sliding vane groove is small and the internal pressure pulsation of the tail cavity of the sliding vane groove is large relative to the suction and exhaust of the compressor, the invention provides the variable-capacity compressor with the sliding vane tail cavity expansion pressure-stabilizing structure, the effective volume of the tail cavity of the sliding vane groove can be greatly increased through the expansion of the tail cavity of the variable-capacity sliding vane groove, the occupation ratio of the effective volumes of the sliding vane and the tail cavity is reduced, the pressure pulsation of the tail cavity of the variable-capacity sliding vane under the conventional working condition is effectively reduced, and the high-frequency vibration and the noise of the compressor are further reduced; varactor gleitbretter groove tail chamber dilatation is for setting up dilatation passageway 26 respectively on first bearing 11 and first baffle 12a, dilatation passageway 26 communicates with gleitbretter tail chamber 25 and dilatation chamber 25a respectively for the effective volume of gleitbretter tail chamber 25 promotes by a wide margin, has reduced the proportion of gleitbretter with varactor tail chamber effective volume, and the pressure pulsation of gleitbretter tail chamber 25 will reduce by a wide margin when the high-speed reciprocal operation of sealed gleitbretter inslot, and then reduces the high-frequency vibration and the noise of compressor. The expansion cavity 25a is a sealed cavity formed by the cavity of the first partition plate 12a and the first cover plate 12.
The present invention provides a variable capacity compressor, comprising:
the gas diffusion device comprises a first air cylinder 9, a first sliding piece 16 and a first partition plate 12a, wherein a sliding piece groove 91 is formed in the first air cylinder 9, at least part of the first sliding piece 16 is arranged in the sliding piece groove 91, a sliding piece tail cavity 25 is further formed in the first air cylinder 9, the sliding piece tail cavity 25 is communicated with the sliding piece groove 91, an expansion cavity 25a is formed in the first partition plate 12a, and the expansion cavity 25a can be communicated with the sliding piece tail cavity 25 to guide gas in the sliding piece tail cavity 25 into the expansion cavity 25a. According to the invention, through the expansion cavity arranged on the first partition plate (the first partition plate is a structure additionally arranged for forming the expansion cavity), and the expansion cavity can be communicated with the tail cavity of the sliding vane, so that an expansion mechanism for expanding the tail cavity of the sliding vane is effectively formed, the effective volume of the tail cavity of the sliding vane can be greatly increased, the pressure pulsation of the tail cavity of the variable-volume sliding vane under the conventional working condition can be effectively reduced, and the high-frequency vibration and the noise of the compressor are further reduced.
In some embodiments, further comprising a first roller 10 and a first bearing 11, said first cylinder 9 having a hollow cavity, said first roller 10 being disposed in said hollow cavity,
the first bearing 11 is located between the first cylinder 9 and the first partition 12a, the first bearing 11 is provided with a capacity expansion channel 26, one end of the capacity expansion channel 26 can be communicated with the sliding vane tail cavity 25, and the other end of the capacity expansion channel 26 is communicated with the capacity expansion cavity 25a.
According to the invention, the expansion channel is arranged on the first bearing connected with the first cylinder, the expansion cavity is arranged on the first partition plate connected with the first bearing, one end of the expansion channel is communicated with the sliding vane tail cavity, and the other end of the expansion channel is communicated with the expansion cavity, so that an expansion mechanism for expanding the sliding vane tail cavity is effectively formed, the effective volume of the sliding vane tail cavity can be greatly increased, the pressure pulsation of the variable-volume sliding vane tail cavity under the conventional working condition can be effectively reduced, and the high-frequency vibration and the noise of the compressor are further reduced.
The invention solves the following technical problems:
1. the expansion of the tail cavity of the variable-capacity sliding vane groove can greatly increase the effective volume of the tail cavity of the sliding vane groove, reduce the ratio of the effective volumes of the sliding vane and the tail cavity, effectively reduce the pressure pulsation of the tail cavity of the variable-capacity sliding vane under the conventional working condition and further reduce the high-frequency vibration and noise of the compressor;
2. through the diameter D who prescribes a limit to the dilatation passageway, can make the pressure pulsation in varactor gleitbretter tail chamber be in relatively less level, pressure pulsation when can effectively reducing varactor gleitbretter chamber area liquid avoids the gleitbretter striking that varactor mechanism became invalid and leads to produce the abnormal sound.
Has the advantages that:
by arranging the capacity expansion mechanism of the tail cavity of the variable-capacity sliding vane groove, the effective volume of the tail cavity of the sliding vane groove can be greatly increased, the pressure pulsation of the tail cavity of the variable-capacity sliding vane under the conventional working condition can be effectively reduced, and the high-frequency vibration and the noise of the compressor are further reduced; through the diameter D who prescribes a limit to the dilatation passageway, can make the pressure pulsation in varactor gleitbretter tail chamber be in relatively less level, avoid taking the pressure pulsation sudden change of liquid start-up varactor tail chamber, solve the gleitbretter striking that varactor mechanism became invalid and lead to and produce the abnormal sound, promote user's result of use.
Fig. 2 is a schematic structural view of a rotary compressor in embodiment 1 having the present invention. The rotary compressor comprises a shell assembly 1, a motor stator 2, a motor rotor 3 and a pump body assembly, wherein an exhaust pipe is arranged on an upper cover assembly 27 of the shell assembly 1, the motor stator 2 is fixed on the inner wall of the shell assembly 1, and the motor rotor 3 is fixed on a crankshaft 4 of the pump body assembly and is arranged in an inner hole of the motor stator 2. The pump body assembly is welded and fixed on the shell assembly 1. The pump body assembly comprises an upper bearing 5, a lower bearing (a first bearing 11) and a crankshaft 4, an upper cylinder 6 and a lower cylinder (a first cylinder 9) are arranged between the upper bearing 5 and the first bearing 11, a second partition plate 8 is arranged between the upper cylinder 6 and the first cylinder 9 for separation, an upper roller 7 and a lower roller (a first roller 10) are respectively installed in the upper cylinder 6 and the first cylinder 9, and the upper roller 7 and the lower roller are respectively sleeved on the upper eccentric portion and the lower eccentric portion of the crankshaft 4. The upper sliding sheet 17 and the lower sliding sheet (a first sliding sheet 16) are arranged in the sliding sheet grooves in the upper cylinder 6 and the lower cylinder, the head parts of the upper sliding sheet 17 and the lower sliding sheet are respectively abutted against the outer diameters of the upper roller 7 and the lower roller, and the volume cavity in the cylinder is divided into a high-pressure cavity and a low-pressure cavity, so that the compression function of the compressor is realized. A pin 15 is arranged in the first bearing 11 corresponding to the bottom of the first sliding sheet 16, a pin spring 14 is arranged at the pin head part, and the pin spring is limited between the upper end of the pin hole and the pin head part; a lower partition plate (a first partition plate 12 a) is mounted at the lower end of the first bearing 11, a lower cover plate (a first cover plate 12) is covered at the lower end of the lower partition plate, and an expansion cavity 25a is formed by the lower cover plate and a cavity of the lower cover plate; a liquid distributor component 28 is arranged outside the shell component 1, and two bent pipes (an upper air suction pipe 20 and a lower air suction pipe 19 of the liquid distributor) of the liquid distributor component 28 are respectively connected with air suction ports of the upper air cylinder 6 and the lower air cylinder. A lower cover 13 is mounted on the bottom of the housing assembly 1 and an upper cover assembly 27 is mounted on the top, thus forming a closed chamber.
When the compressor runs, the upper cylinder and the lower cylinder suck the refrigerant from the liquid distributor assembly 28, the refrigerant enters the cylinders to be compressed, the compressed high-pressure refrigerant enters the cavity of the shell and enters the cavity at the upper part of the motor through the circulation hole between the motor stator and the motor rotor and the rotor circulation hole, the refrigerant is finally discharged out of the compressor from the exhaust pipe of the upper cover assembly 27 and enters the air conditioning system 24, and the refrigerant is subjected to circulating heat exchange by the air conditioning system 24 and then enters the liquid distributor assembly 28 again, so that a cycle is completed. If the high-pressure electromagnetic valve 23 is closed and the low-pressure electromagnetic valve 22 is opened simultaneously in the running process of the compressor, the compressor realizes the running in a single-cylinder mode, and if the high-pressure electromagnetic valve 23 is opened and the low-pressure electromagnetic valve 22 is closed simultaneously, the compressor realizes the running in a double-cylinder mode;
fig. 3 is a schematic cross-sectional view of a lower end surface of a variable displacement cylinder of a pump body of a compressor according to an embodiment of the invention. Varactor cylinder gleitbretter groove afterbody is encapsulated situation (conventional cylinder gleitbretter afterbody is open mode), and 16 afterbody of first gleitbretter forms varactor gleitbretter tail chamber (gleitbretter tail chamber 25) with gleitbretter groove afterbody.
When the compressor operates in a double-cylinder mode, the first sliding vane 16 operates in a sliding vane groove in a high-speed reciprocating mode, and because the variable-capacity sliding vane operates in a sealed sliding vane groove in a high-speed reciprocating mode, the volume of a tail cavity of the sealed sliding vane groove is small, pressure pulsation of the tail cavity of the sealed sliding vane groove is large relative to suction and exhaust of the compressor, and high-frequency vibration noise of the compressor is aggravated.
FIG. 1 is a schematic partial cross-sectional view of a compressor pump body according to an embodiment of the present invention. The invention provides a variable-capacity compressor with a sliding vane tail cavity expansion pressure stabilizing structure, aiming at solving the problem that high-frequency vibration noise of the compressor is aggravated because the volume of a closed sliding vane tail cavity is smaller and the internal pressure pulsation is larger relative to the suction and exhaust of the compressor. The cavity of the first partition 12a and the first cover 12 form an expansion chamber 25a. Set up dilatation passageway 26 on primary shaft holds 11 and first baffle 12a respectively, dilatation passageway 26 communicates with gleitbretter tail chamber 25 and dilatation chamber 25a respectively for the effective volume of gleitbretter tail chamber 25 promotes by a wide margin, has reduced the proportion of gleitbretter with varactor gleitbretter tail chamber effective volume, and the pressure pulsation of varactor tail chamber 25 will reduce by a wide margin when varactor gleitbretter moves at high-speed reciprocating in sealed slide groove, and then reduces the high frequency vibration and the noise of compressor.
The volume of a sealed slide sheet groove tail cavity is smaller, and the volume of a slide sheet is larger than that of the slide sheet groove tail cavity, so that when a slide sheet of a variable-volume cylinder reciprocates at a high speed in a slide sheet groove, the internal pressure pulsation of the slide sheet is larger relative to the suction and exhaust of a compressor, and the problem of aggravated high-frequency vibration noise of the compressor is caused; in order to solve the problem, the expansion cavity 25a and the expansion channel 26 are arranged, which is equivalent to greatly increase the volume of the tail cavity of the slide sheet groove, reduce the ratio of the slide sheet to the expansion cavity and reduce the pressure pulsation of the slide sheet when the slide sheet reciprocates at high speed in the slide sheet groove.
The invention is mainly applied to the two processes of running of the double cylinders of the compressor and low-temperature standing starting of the compressor with liquid, if the starting with liquid can not overcome pressure pulsation, the pressure pulsation of the tail cavity of the sliding vane is greatly increased, the pulsation value is greater than the lowest pressure of the single double cylinder switching of the variable volume compressor, so that the starting stage of the variable volume mechanism is invalid, and the single double cylinder of the compressor is frequently switched.
In some embodiments, the slider tail cavity 25 comprises a first slider tail cavity 251 and a second slider tail cavity 252, the first slider tail cavity 251 communicates with the radially outer end of the slider slot 91, the first slider 16 comprises a leading portion 161 and a trailing portion 162, the leading portion 161 is engageable with the first roller 10, and the trailing portion 162 is movable into the first slider tail cavity 251; the second slider tail cavity 252 communicates with the first slider tail cavity 251.
The volume of the original first sliding vane tail cavity can be further expanded through the design of the second sliding vane tail cavity, the effect of further expansion is achieved, the pressure pulsation of the variable-volume sliding vane tail cavity under the conventional working condition is further reduced, the high-frequency vibration and noise of the compressor are reduced, the pressure pulsation of the variable-volume sliding vane cavity (low-temperature static start) during liquid carrying can be effectively reduced, and the generation of abnormal sound caused by sliding vane collision due to the failure of a variable-volume mechanism is avoided.
In some embodiments, the second vane tail cavity 252 includes a first connecting slot 2521 and a first cavity 2522, the first connecting slot 2521 being in communication with the first vane tail cavity 251, the first cavity 2522 being in communication with the first connecting slot 2521, the first cavity 2522 being in communication with the expansion channel 26 on the first bearing 11. According to the invention, through the design of the first communicating groove, the first communicating groove can extend towards the opposite direction of the first cavity while communicating the first cavity and the first sliding piece tail cavity, so that the first communicating groove can form a channel for further expansion, the pressure pulsation of the sliding piece tail cavity is further reduced, and the noise is reduced; the first cavity can communicate gas to the capacity expansion channel and the capacity expansion cavity for effective capacity expansion, so that pressure pulsation is effectively reduced, and noise is reduced.
In some embodiments, in the cross section of the first cylinder 9, the first cavity 2522 is a strip-shaped groove structure, one end of the first cavity 2522 is communicated with the first communicating groove 2521, the other end extends in a direction away from the first communicating groove 2521, and the other end of the first cavity 2522 is located on one side of the vane groove 91; the first communicating groove 2521 is also in a strip-shaped groove structure, one end of the first communicating groove 2521 is communicated with the first cavity 2522, and the other end is located on the other side of the slide sheet groove 91; that is, the other end of the first connecting groove 2521 and the other end of the first cavity 2522 are located at two sides of the slide sheet groove 91, and the slide sheet groove 91 is located in the middle; the first sliding vane tail cavity 251 is a through hole penetrating along the axial direction of the first cylinder 9, and at least part of the structure of the first sliding vane tail cavity 251 is located inside the first connecting groove 2521.
The first cavity is of a strip-shaped groove structure, a channel capable of expanding the volume of gas can be further formed, the first cavity extends towards one side of the slide sheet groove, the first connecting groove extends towards the other side of the slide sheet groove, different groove structures can be formed by effectively utilizing the space of the air cylinder, each groove can be formed to the maximum, the volume of the capacity expanding channel is increased, and the capacity expanding effect is improved.
In some embodiments, in the cross-sectional plane through the axis of the first cylinder 9, the first cavity 2522 includes a first portion 25221 and a second portion 25222, the first and second portions 25221 and 25222 each being a slotted structure, the first portion 25221 communicating with the second portion 25222, the first portion 25221 being located radially inward of the second portion 25222, the first communicating slot 2521 and the first portion 25221 communicating through the second portion 25222, the second portion 25222 communicating with the flash-expanding channel 26 through the first portion 25221. This is a further preferable structural form of the first chamber of the present invention, and thus, as shown in fig. 1, two grooves may be formed, and a step may be formed between the two grooves, so that other structures such as a hole structure may be avoided as much as possible, and a material space of the cylinder may be effectively utilized to the maximum extent, thereby improving a space utilization rate and improving a capacity expansion effect.
In some embodiments, the first portion 25221 and the second portion 25222 are both slots extending in the axial direction of the first cylinder 9, and the axial height of the first portion 25221 is less than the axial height of the second portion 25222; the first portion 25221 extends axially from the end face of the first cylinder 9 that meets the first bearing 11, and the second portion 25222 also extends axially from the end face of the first cylinder 9 that meets the first bearing 11; the expansion passage 26 is a groove that penetrates from one axial end surface of the first bearing 11 to the other axial end surface in the axial direction. The first part and the second part of the invention are preferably of axially extending groove structures and have different heights, so that stepped holes are formed, other parts can be avoided, and meanwhile, effective expansion can be carried out.
In some embodiments, the first cavity 2522 has an area S in a cross-section of the first cylinder 9; the cross section of the expansion channel 26 is a circular hole with the diameter of D and satisfies that S/3 is less than or equal to 1/4 pi D 2 S is less than or equal to S. The invention also limits the relation between the expansion channel D and the cross section area S of the first cavity, so that the pressure pulsation of the tail cavity of the variable-volume sliding vane is in a relatively small level, and the tail cavity of the variable-volume sliding vane is prevented from being started with liquidThe pressure pulsation sudden change of solving varactor mechanism start-up stage and losing efficacy, the single double-cylinder of compressor frequently switches, and the gleitbretter striking that varactor mechanism became invalid produces the problem of abnormal sound, promotes user's result of use.
If the drift diameter D of the capacity expansion channel 26 is small, the capacity expansion channel can generate throttling when the pressure pulsation of the tail cavity of the variable-capacity sliding vane is large, particularly, the tail cavity of the sliding vane groove is easy to accumulate liquid when the compressor is started after standing for a long time in a low-temperature environment, the pressure pulsation of the tail cavity of the sliding vane is greatly increased (as shown in a curve with liquid pressure pulsation in fig. 4), the throttling of the capacity expansion channel 26 is more obvious, so that the pulsation value of the tail cavity 25 of the sliding vane is larger than the lowest pressure for switching single and double cylinders of the variable-capacity compressor, the starting stage of the variable-capacity mechanism fails, the single and double cylinders of the compressor are frequently switched, the sliding vane generates impact and abnormal sound, and the user experience is seriously influenced; in order to further optimize the pressure pulsation of the tail cavity of the variable-capacity sliding vane under the conventional working condition, according to the transverse (radial) sectional area S of the tail cavity of the variable-capacity sliding vane, the drift diameter D of the capacity expansion channel 26 is limited, the condition that S/3 is not less than 1/4 pi D2 is not more than S is met, the pressure pulsation of the tail cavity of the variable-capacity sliding vane under the conventional working condition can be further reduced, the pressure pulsation value is as low as 0.3bar (as a pressure pulsation curve after capacity expansion optimization of figure 4), high-frequency vibration and noise of a compressor excited by pulsation are further reduced, the using effect of a user is improved, the problem that the tail cavity of the starting sliding vane groove is prone to effusion after the compressor is kept stand in a low-temperature environment for a long time is solved, the problem that the pressure pulsation of the tail cavity of the sliding vane is greatly increased, the problem that the starting stage of the variable-capacity mechanism fails is solved, and the variable-capacity compressor can be smoothly started and operated.
In some embodiments, the second vane tail cavity 252 further includes a pressure communication groove 2523, the pressure communication groove 2523 is communicated with the first communication groove 2521, and the pressure communication groove 2523 is capable of introducing gas with pressure to act on the tail portion 162 of the first vane 16 through the first communication groove 2521 and the first vane tail cavity 251 to control locking or unlocking of the first vane 16, thereby controlling unloading or loading of the first roller 10. According to the invention, through the arrangement of the pressure communication groove, external pressure can be introduced into the tail cavity of the first sliding sheet through the pressure communication groove so as to control the first sliding sheet, and the effect and effect of further expanding the volume are also achieved through the pressure communication groove, so that the pressure pulsation of the tail cavity of the sliding sheet is further reduced, and the noise is reduced.
In some embodiments, the variable displacement compressor further includes a pressure switching passage 81, the pressure switching passage 81 is capable of introducing a gas under pressure from outside the variable displacement compressor, the pressure communication groove 2523 is a through hole penetrating from one end surface of the first cylinder 9 in the axial direction to the other end surface of the first cylinder in the axial direction, a communication hole 92 is further provided inside the first cylinder 9, one end of the communication hole 92 communicates with the pressure switching passage 81, and the other end communicates with the pressure communication groove 2523. The pressure communication groove penetrating along the axial direction is communicated with an external pressure switching channel through the communication hole, so that pressure can be introduced to act on the tail part of the first slide piece, and the variable volume can be effectively controlled.
In some embodiments, the pressure communication groove 2523 has a kidney-shaped hole structure in the cross section of the first cylinder 9. The pressure communicating groove is designed into a kidney-shaped hole structure, so that the volume of the hole (particularly relative to a round hole) can be effectively improved, the capacity expansion effect can be further improved, the pressure pulsation can be further reduced, and the noise can be reduced.
In some embodiments, the expansion cavity 25a is a receiving cavity disposed inside the first partition plate 12a, and a second communicating groove 25b is further disposed on the first partition plate 12a, and one end of the second communicating groove 25b communicates with the expansion channel 26 of the first bearing 11, and the other end communicates with the expansion cavity 25a. The expansion cavity is preferably arranged, and the second communicating groove can conduct gas in the expansion channel to the expansion cavity to achieve the effect of effective expansion.
In some embodiments, the bearing further includes a first cover plate 12, the first cover plate 12 is disposed on an axial end surface of the first partition plate 12a facing away from the first bearing 11, so that the first partition plate 12a is sandwiched between the first bearing 11 and the first cover plate 12, the expansion cavity 25a is formed by extending from an axial end surface of the first partition plate 12a, which is connected to the first cover plate 12, toward a direction of another axial end surface, and the first cover plate 12 forms a seal with the expansion cavity 25a. The expansion cavity can be effectively sealed by the arrangement of the first cover plate, so that the processing of the expansion cavity can be easily realized.
The invention also provides an air conditioning system comprising the variable capacity compressor of any one of the preceding claims.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention. The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, it is possible to make various improvements and modifications without departing from the technical principle of the present invention, and those improvements and modifications should be also considered as the protection scope of the present invention.
Claims (14)
1. A variable capacity compressor, characterized by: the method comprises the following steps:
first cylinder (9), first gleitbretter (16) and first baffle (12 a), be provided with gleitbretter groove (91) on first cylinder (9), at least part of first gleitbretter (16) set up in gleitbretter groove (91), still be provided with gleitbretter tail chamber (25) on first cylinder (9), gleitbretter tail chamber (25) with gleitbretter groove (91) intercommunication, be provided with on first baffle (12 a) and expand appearance chamber (25 a), expand appearance chamber (25 a) can with gleitbretter tail chamber (25) intercommunication, with gaseous leading-in the gleitbretter tail chamber (25) expand in the appearance chamber (25 a).
2. The variable capacity compressor of claim 1, wherein:
further comprising a first roller (10) and a first bearing (11), the first cylinder (9) having a hollow cavity, the first roller (10) being arranged in the hollow cavity,
the first bearing (11) is located between the first cylinder (9) and the first partition plate (12 a), an expansion channel (26) is arranged on the first bearing (11), one end of the expansion channel (26) can be communicated with the sliding piece tail cavity (25), and the other end of the expansion channel is communicated with the expansion cavity (25 a).
3. The variable capacity compressor of claim 2, wherein:
the slide tail cavity (25) comprises a first slide tail cavity (251) and a second slide tail cavity (252), the first slide tail cavity (251) is communicated with the radial outer side end of the slide groove (91), the first slide (16) comprises a head part (161) and a tail part (162), the head part (161) can be connected with the first roller (10), and the tail part (162) can movably extend into the first slide tail cavity (251); the second vane tail cavity (252) is in communication with the first vane tail cavity (251).
4. The variable capacity compressor of claim 3, wherein:
the second vane tail cavity (252) comprises a first connecting groove (2521) and a first cavity (2522), the first connecting groove (2521) is communicated with the first vane tail cavity (251), the first cavity (2522) is communicated with the first connecting groove (2521), and the first cavity (2522) is communicated with the expansion channel (26) on the first bearing (11).
5. The variable capacity compressor of claim 4, wherein:
in the cross section of the first cylinder (9), the first cavity (2522) is in a strip-shaped groove structure, one end of the first cavity (2522) is communicated with the first connecting groove (2521), the other end of the first cavity extends in the direction away from the first connecting groove (2521), and the other end of the first cavity (2522) is located on one side of the slide sheet groove (91); the first connecting groove (2521) is also in a strip-shaped groove structure, one end of the first connecting groove (2521) is communicated with the first cavity (2522), and the other end of the first connecting groove is positioned on the other side of the slide sheet groove (91); namely, the other end of the first connecting groove (2521) and the other end of the first cavity (2522) are positioned at two sides of the slide sheet groove (91), and the slide sheet groove (91) is positioned in the middle; the first sliding vane tail cavity (251) is a through hole penetrating along the axial direction of the first cylinder (9), and at least part of the structure of the first sliding vane tail cavity (251) is located inside the first connecting groove (2521).
6. The variable capacity compressor of claim 4, wherein:
in an over-axis cross-section of the first cylinder (9), the first cavity (2522) comprises a first portion (25221) and a second portion (25222), the first portion (25221) and the second portion (25222) both being of a slotted configuration, the first portion (25221) communicating with the second portion (25222), the first portion (25221) being located radially inward of the second portion (25222), the second portion (25222) communicating the first communicating slot (2521) with the first portion (25221), the first portion (25221) communicating the second portion (25222) with the flash channel (26).
7. The variable capacity compressor of claim 6, wherein:
the first portion (25221) and the second portion (25222) are both grooves extending in the axial direction of the first cylinder (9), and the axial height of the first portion (25221) is smaller than the axial height of the second portion (25222); the first portion (25221) extends axially from the end face of the first cylinder (9) that meets the first bearing (11), and the second portion (25222) also extends axially from the end face of the first cylinder (9) that meets the first bearing (11); the expansion channel (26) is a groove which axially penetrates from one axial end face of the first bearing (11) to the other axial end face.
8. The variable capacity compressor of claim 4, wherein:
-the area of the first cavity (2522) is S in the cross-section of the first cylinder (9); the cross section of the expansion channel (26) is a circular hole, the diameter of the circular hole is D, and S/3 is less than or equal to 1/4 pi D 2 ≤S。
9. The variable capacity compressor according to any one of claims 4 to 8, wherein:
the second slide tail cavity (252) further comprises a pressure communication groove (2523), the pressure communication groove (2523) is communicated with the first communication groove (2521), and the pressure communication groove (2523) can introduce gas with pressure to act on the tail part (162) of the first slide (16) through the first communication groove (2521) and the first slide tail cavity (251) so as to control locking or unlocking of the first slide (16) and control unloading or loading of the first roller (10).
10. The variable capacity compressor of claim 9, wherein:
the variable volume compressor further comprises a pressure switching channel (81), gas with pressure can be introduced into the pressure switching channel (81) from the outside of the variable volume compressor, the pressure communication groove (2523) is a through hole which penetrates from one axial end face of the first cylinder (9) to the other axial end face in the axial direction, a communication hole (92) is further formed in the first cylinder (9), one end of the communication hole (92) is communicated with the pressure switching channel (81), and the other end of the communication hole is communicated with the pressure communication groove (2523).
11. The variable capacity compressor of claim 10, wherein:
the pressure communication groove (2523) has a kidney-shaped hole structure in the cross section of the first cylinder (9).
12. The variable capacity compressor according to any one of claims 2 to 11, wherein:
the expansion cavity (25 a) is an accommodating cavity arranged inside the first partition plate (12 a), a second communicating groove (25 b) is further formed in the first partition plate (12 a), one end of the second communicating groove (25 b) is communicated with the expansion channel (26) of the first bearing (11), and the other end of the second communicating groove is communicated with the expansion cavity (25 a).
13. The variable capacity compressor of claim 12, wherein:
the sealing structure is characterized by further comprising a first cover plate (12), the first cover plate (12) is arranged on the axial end face, away from the first bearing (11), of the first partition plate (12 a) in a covering mode, the first partition plate (12 a) is clamped between the first bearing (11) and the first cover plate (12), the expansion cavity (25 a) is formed by extending from the axial end face, connected with the first cover plate (12), of the first partition plate (12 a) to the direction of the other axial end face, and the first cover plate (12) forms sealing for the expansion cavity (25 a).
14. An air conditioning system characterized by: comprising the variable capacity compressor of any one of claims 1-13.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211019774.XA CN115306715A (en) | 2022-08-24 | 2022-08-24 | Variable-capacity compressor and air conditioning system |
| PCT/CN2023/089725 WO2024041002A1 (en) | 2022-08-24 | 2023-04-21 | Variable-capacity compressor and air conditioning system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211019774.XA CN115306715A (en) | 2022-08-24 | 2022-08-24 | Variable-capacity compressor and air conditioning system |
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| CN115306715A true CN115306715A (en) | 2022-11-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202211019774.XA Pending CN115306715A (en) | 2022-08-24 | 2022-08-24 | Variable-capacity compressor and air conditioning system |
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| CN (1) | CN115306715A (en) |
| WO (1) | WO2024041002A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024041002A1 (en) * | 2022-08-24 | 2024-02-29 | 珠海格力电器股份有限公司 | Variable-capacity compressor and air conditioning system |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101978960B1 (en) * | 2012-12-28 | 2019-05-16 | 엘지전자 주식회사 | Compressor |
| CN104912808A (en) * | 2015-06-25 | 2015-09-16 | 广东美芝制冷设备有限公司 | Compressing mechanism and low-back-pressure rotation type compressor with same |
| CN105673509A (en) * | 2016-03-21 | 2016-06-15 | 珠海凌达压缩机有限公司 | Pump body, rotary roller compressor and air conditioner |
| CN109113994A (en) * | 2018-10-29 | 2019-01-01 | 珠海格力节能环保制冷技术研究中心有限公司 | Pump assembly, positive displacement compressor, air handling system |
| CN110374875B (en) * | 2019-07-29 | 2020-11-24 | 珠海格力节能环保制冷技术研究中心有限公司 | Slip sheet structure of rotor type compressor, rotor type compressor and refrigeration equipment |
| CN113883054A (en) * | 2021-10-28 | 2022-01-04 | 珠海格力节能环保制冷技术研究中心有限公司 | Pump body subassembly, variable volume compressor and air conditioning system |
| CN115306715A (en) * | 2022-08-24 | 2022-11-08 | 珠海格力电器股份有限公司 | Variable-capacity compressor and air conditioning system |
| CN218266342U (en) * | 2022-08-24 | 2023-01-10 | 珠海格力电器股份有限公司 | Variable-capacity compressor and air conditioning system |
-
2022
- 2022-08-24 CN CN202211019774.XA patent/CN115306715A/en active Pending
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2023
- 2023-04-21 WO PCT/CN2023/089725 patent/WO2024041002A1/en unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024041002A1 (en) * | 2022-08-24 | 2024-02-29 | 珠海格力电器股份有限公司 | Variable-capacity compressor and air conditioning system |
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