CN111794972A - Cylinder assembly, compressor and refrigeration equipment - Google Patents
Cylinder assembly, compressor and refrigeration equipment Download PDFInfo
- Publication number
- CN111794972A CN111794972A CN202010731556.3A CN202010731556A CN111794972A CN 111794972 A CN111794972 A CN 111794972A CN 202010731556 A CN202010731556 A CN 202010731556A CN 111794972 A CN111794972 A CN 111794972A
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- Prior art keywords
- air guide
- cylinder
- groove
- air
- guide plug
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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
- 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
- F04C28/00—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids
- F04C28/24—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids characterised by using valves controlling pressure or flow rate, e.g. discharge valves or unloading valves
- F04C28/26—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids characterised by using valves controlling pressure or flow rate, e.g. discharge valves or unloading valves using bypass channels
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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
- F04C2240/00—Components
- F04C2240/10—Stators
Abstract
The utility model belongs to the technical field of the compressor, especially, relate to a cylinder subassembly, compressor and refrigeration plant, the cylinder subassembly includes the cylinder, air guide plug and actuating mechanism, suction hole and air guide groove are seted up to the cylinder, be formed with the backward flow passageway, backward flow passageway intercommunication suction hole and air guide groove, actuating mechanism drive air guide plug moves to the primary importance towards the cylinder, or move to the second place dorsad to the cylinder, air guide plug blocks air guide groove and backward flow passageway intercommunication when the primary importance, air guide groove and cylinder inner wall juncture and air guide plug meet towards the one end neighboring edge of cylinder, when air guide plug to the second place, backward flow passageway and air guide groove are linked together. The boundary edge of the air guide groove and the inner wall of the cylinder is connected with the outer peripheral edge of one end, facing the cylinder, of the air guide plug, so that the air guide plug can effectively seal the communication position between the air guide groove and the cylinder, gas in the cylinder is prevented from entering a backflow channel along the air guide groove, gas leakage in the piston compression process is reduced, and the cylinder assembly has a better high-energy working state.
Description
Technical Field
The application belongs to the technical field of compressors, and particularly relates to a cylinder assembly, a compressor and refrigeration equipment.
Background
The compressor, as a fluid machine for converting a low-pressure gas into a high-pressure gas, has a wide application in a refrigeration apparatus. In recent years, a single-cylinder variable-capacity technology of a compressor is provided, the technology is that holes are formed in the wall of a cylinder of the compressor, a columnar plug capable of moving back and forth is arranged in the holes to adjust the volume of the cylinder, and meanwhile, a refrigerant medium in the cylinder is controlled to flow back to a suction side so as to improve the energy efficiency of the compressor. However, the cylindrical plug can cause gas to leak from the opening during compression in the cylinder, so that the energy efficiency of the compressor is increased to a limited extent.
Disclosure of Invention
An object of the embodiment of the application is to provide a cylinder assembly, compressor and refrigeration plant, aims at solving the column stopper among the prior art and leads to the cylinder in the compression process gas from opening department reveal for the comparatively limited technical problem of compressor efficiency lifting amplitude.
In order to achieve the purpose, the technical scheme adopted by the application is as follows:
in a first aspect: the cylinder assembly comprises a cylinder, an air guide plug and a driving mechanism, wherein an eccentrically rotating piston is arranged in the cylinder, an air suction hole and an air guide groove are formed in the inner wall of the cylinder, a backflow channel is formed in a region between the outer wall of the cylinder and the inner wall of the cylinder and is used for communicating the air suction hole with the air guide groove, the air guide plug is arranged in the air guide groove, the driving mechanism is used for driving the air guide plug to move to a first position towards the inner space of the cylinder or driving the air guide plug to move to a second position away from the inner space of the cylinder, when the air guide plug moves to the first position, the air guide plug blocks the air guide groove from being communicated with the backflow channel, and the boundary edge of the air guide groove and the inner wall of the cylinder is connected with the outer peripheral edge of one end of the air guide plug towards the cylinder, when the air guide plug moves to the second position, the backflow channel is communicated with the air guide groove.
Optionally, when the air guide plug moves to the first position, one end surface of the air guide plug facing the cylinder is flush with the inner wall surface of the cylinder, and the end surface of the air guide plug facing the cylinder is an arc surface, and the radian of the arc surface is the same as that of the inner wall surface of the cylinder.
Optionally, the air guide groove is a long groove, and the air guide plug is arranged in the air guide groove along the length direction of the air guide groove.
Optionally, the air guide groove is arranged along the height direction of the air cylinder.
Optionally, two opposite ends of the air guide groove along the height direction of the cylinder extend to the upper end surface and the lower end surface of the cylinder in the height direction respectively.
Optionally, the air guide groove includes a primary groove and a secondary groove communicated with the primary groove, the primary groove is opened on the inner wall of the cylinder, the secondary groove is communicated with the primary groove, the primary groove faces away from one side groove edge of the inner space of the cylinder, a limiting step is formed at the junction of the primary groove and the secondary groove, the air guide plug faces away from the outer wall of one end of the inner space of the cylinder, a protruding portion is arranged on the outer wall of one end of the inner space of the cylinder, and the protruding portion is used for enabling the air guide plug to move to the first position and enabling the limiting step to face away from one side end face of the inner space of the cylinder to be abutted.
Optionally, the number of the protruding portions is two, and the two protruding portions are respectively arranged on the outer walls of two opposite sides of the air guide plug and are both used for abutting against a side end face of the limiting step, which faces away from the inner space of the air cylinder.
Optionally, the outer side wall of the boss abuts against the inner wall of the secondary groove adjacent to the boss, the air guide plug is not provided with two opposite side outer walls of the boss which abut against two opposite side outer walls of the secondary groove adjacent to the boss, respectively, and the driving mechanism is configured to supply a pressure medium into the secondary groove to drive the air guide plug to move towards the first position, or is configured to form a low-pressure environment in the secondary groove to drive the air guide plug to move towards the second position.
The embodiment of the application has at least the following beneficial effects: the cylinder assembly provided by the embodiment of the application, suction hole and air guide groove have been seted up to its cylinder inner wall, wherein suction hole and air guide groove can be linked together by the backward flow passageway that forms between cylinder outer wall and inner wall, and the air guide stopper can be under actuating mechanism's drive, move to the first position along the air guide groove, it is linked together to block air guide groove and backward flow passageway, the cylinder is in full capacity state this moment, gas can't circulate to the backward flow passageway in through the air guide groove in it, the cylinder assembly then is in high-energy operating condition, and when the air guide stopper is in the second position, the air guide groove exposes in the cylinder inner wall, the cylinder is in partial capacity state this moment, gas in the cylinder then can circulate to the backward flow passageway through the air guide groove, so just slowed down piston turning resistance, make the cylinder assembly be in energy-conserving operating condition. And because the juncture edge of the air guide groove and the inner wall of the cylinder is connected with the peripheral edge of one end of the air guide plug facing the cylinder, when the air guide plug is positioned at the first position, the juncture edge can effectively seal the communication position between the air guide groove and the cylinder, thereby effectively preventing the gas in the cylinder from entering a backflow channel along the air guide groove and further leading the cylinder assembly to have better high-capacity working state.
In a second aspect: a compressor is provided comprising the cylinder assembly described above.
The compressor provided by the embodiment of the application comprises the air cylinder assembly, and when the air guide plug in the air cylinder assembly is located at the first position, the peripheral edge of one end, facing the air cylinder, of the air guide plug is connected with the edge of the junction of the air guide groove and the inner wall of the air cylinder, so that the air cylinder assembly has a better high-energy working state, and the high-energy working efficiency of the compressor is improved.
In a second aspect: there is provided a refrigeration apparatus comprising the compressor described above.
The refrigeration equipment provided by the embodiment of the application comprises the compressor, and the compressor can realize the improvement of high-capacity working efficiency through the cylinder assembly arranged in the compressor, so that the high-capacity working efficiency of the refrigeration equipment comprising the compressor is also obviously improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
FIG. 1 is a schematic structural diagram of a cylinder assembly provided in an embodiment of the present application;
FIG. 2 is another schematic structural view of a cylinder assembly provided in an embodiment of the present application;
FIG. 3 is a schematic view of a portion of an air guide slot of a cylinder assembly according to an embodiment of the present disclosure;
FIG. 4 is a schematic view of a portion of a mating air guide slot and air guide plug of a cylinder assembly according to an embodiment of the present disclosure;
FIG. 5 is another partial schematic view of the mating of the air guide slot and the air guide plug of the cylinder assembly provided by the exemplary embodiment of the present application;
FIG. 6 is a top view of a pilot plug of a cylinder assembly provided by an embodiment of the present application;
FIG. 7 is a side view of a pilot plug of a cylinder assembly provided by an embodiment of the present application;
fig. 8 is a sectional view taken along line a-a of fig. 7.
Wherein, in the figures, the respective reference numerals:
10-cylinder 11-suction hole 12-air guide groove
13-return channel 14-primary groove 15-secondary groove
16-limit step 20-air guide plug 21-cambered surface
22-boss 23-seal bar 30-drive mechanism.
Detailed Description
Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to fig. 1-8 are exemplary and intended to be used to illustrate the present application and should not be construed as limiting the present application.
In the description of the present application, it is to be understood that the terms "length," "height," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, indicate orientations or positional relationships that are based on the orientation or positional relationship shown in the drawings, are used for convenience in describing the present application and to simplify the description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated, and therefore should not be construed as limiting the present application.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.
In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
As shown in fig. 1 to 3, an embodiment of the present application provides a cylinder assembly, which is applied in a compressor, where the compressor may be a variable displacement rotary compressor, and may be applied in a refrigeration device. The cylinder assembly specifically includes a cylinder 10, an air guide plug 20, and a driving mechanism 30. Wherein, an eccentrically rotating piston is arranged in the cylinder 10, the inner wall of the cylinder 10 is provided with an air suction hole 11 and an air guide groove 12, a backflow channel 13 is formed in a region between the outer wall of the cylinder 10 and the inner wall of the cylinder 10, the backflow channel 13 is used for communicating the air suction hole 11 with the air guide groove 12, the air guide plug 20 is arranged in the air guide groove 12, the driving mechanism 30 is used for driving the air guide plug 20 to move to a first position towards the center of the cylinder 10 or driving the air guide plug 20 to move to a second position away from the center of the cylinder 10, when the air guide plug 20 moves to the first position (as the position of the air guide plug 20 in fig. 1), the air guide plug 20 blocks the air guide groove 12 from communicating with the backflow channel 13, the boundary edge of the inner wall of the air guide groove 12 and the cylinder 10 is connected with the outer peripheral edge of one end of the air guide plug 20 towards the cylinder 10, when the air guide plug 20 moves to, the return channel 13 communicates with the air guide groove 12.
The cylinder assembly provided by the embodiments of the present application is further described below: in the cylinder assembly provided by the embodiment of the application, the inner wall of the cylinder 10 is provided with the air suction hole 11 and the air guide groove 12, wherein the suction hole 11 and the air guide groove 12 can communicate with each other by a return passage 13 formed between the outer wall and the inner wall of the cylinder 10, and the air guide plug 20 can move to the first position along the air guide groove 12 under the driving of the driving mechanism 30, so as to block the air guide groove 12 from communicating with the return channel 13, at this time, the cylinder 10 is in a full capacity state, the gas in the cylinder assembly can not flow into the return channel 13 through the gas guide groove 12, the cylinder assembly is in a high-capacity working state, when the air guide plug 20 is located at the second position, the air guide groove 12 is exposed on the inner wall of the air cylinder 10, at this time, the air cylinder 10 is located at a partial capacity state, and the air in the air cylinder 10 can flow into the backflow channel 13 through the air guide groove 12, so that the rotational resistance of the piston is reduced, and the air cylinder assembly is located at an energy-saving working state. And because the boundary edge of the air guide groove 12 and the inner wall of the cylinder 10 is connected with the outer peripheral edge of one end of the air guide plug 20 facing the cylinder 10, when the air guide plug 20 is at the first position, the communication part between the air guide groove 12 and the cylinder 10 can be effectively sealed, so that the gas in the cylinder 10 can be effectively prevented from entering the backflow channel 13 along the air guide groove 12, and the cylinder assembly has a better high-energy working state.
In other embodiments of the present application, as shown in fig. 4 to 6, when the air guide plug 20 moves to the first position, an end surface of the air guide plug 20 facing the cylinder 10 is flush with an inner wall surface of the cylinder 10, and an end surface of the air guide plug 20 facing the cylinder 10 is an arc surface 21, where an arc degree of the arc surface 21 is the same as an arc degree of the inner wall surface of the cylinder 10.
Specifically, through making air guide plug 20 flush in the internal face of cylinder 10 towards the one end surface of cylinder 10, and the radian keeps the same, just so realized the smooth transition between cylinder 10 inner wall and the air guide plug 20 terminal surface to make the piston when rotating the juncture of cylinder 10 inner wall and air guide plug 20 terminal surface, avoid producing unnecessary vibration, so just guaranteed the smooth and easy going on of piston rotation process, thereby also promoted the cylinder assembly and including its compressor operation smoothness nature.
In other embodiments of the present application, as shown in FIGS. 6 and 8, the airway slot 12 is an elongated slot and the airway plug 20 is disposed within the airway slot 12 along the length of the airway slot 12. Specifically, be different from traditional column air guide plug 20 and air guide groove 12 design, through making air guide groove 12 design be the elongated groove, and make air guide plug 20 set up in air guide groove 12 along the length direction of air guide groove 12, air guide groove 12 just so can the fully utilized cylinder 10 the direction of height or the space of circumference lay, thereby can make air guide groove 12's sectional area bigger, so also promoted the gas flow who flows to return channel 13 via air guide groove 12, the energy-conserving operating efficiency of cylinder subassembly has further been promoted. The height direction of the cylinder 10 is the height direction of the entire cylinder 10 after being laid flat, and may be understood as the width or thickness direction of the cylinder 10.
In other embodiments of the present application, the air guide grooves 12 are arranged in the height direction of the cylinder 10. Specifically, by arranging the air guide grooves 12 along the height direction of the air cylinder 10, the air guide grooves 12 can fully utilize the size space of the air cylinder 10 in the height direction, the opening area of the air guide grooves 12 is increased as much as possible, and the integral strength of the air cylinder 10 is ensured not to be reduced.
In other embodiments of the present application, opposite ends of the air guide groove 12 in the height direction of the cylinder 10 extend to upper and lower end surfaces of the cylinder 10 in the height direction, respectively. Specifically, by extending the opposite ends of the air guide groove 12 along the height direction of the air cylinder 10 to the upper end surface and the lower end surface of the air cylinder 10 in the height direction, respectively, the gas flow rate flowing to the return channel 13 via the air guide groove 12 is further increased, and the energy-saving operation efficiency of the air cylinder assembly is further increased.
In other embodiments of the present application, as shown in fig. 3 to 5, the air guide groove 12 includes a primary groove 14 and a secondary groove 15 communicated with the primary groove 14, the primary groove 14 is opened on an inner wall of the cylinder 10, the secondary groove 15 is communicated with a side groove edge of the primary groove 14 facing away from a center of the cylinder 10, a limiting step 16 is formed at a boundary between the primary groove 14 and the secondary groove 15, a protrusion 22 is provided on an outer wall of an end of the air guide plug 20 facing away from the center of the cylinder 10, and the protrusion 22 is configured to abut against an end surface of the limiting step 16 facing away from the center of the cylinder 10 when the air guide plug 20 moves to the first position.
Specifically, the air guide slot 12 comprises the primary slot 14 and the secondary slot 15, and the limiting step 16 is formed at the junction of the primary slot 14 and the secondary slot 15, so that when the air guide plug 20 moves to the first position, the limiting step 16 can be abutted against the bulge part 22 arranged on the outer wall of the air guide plug 20, thereby limiting the air guide plug 20 at the first position, and thus, the accurate control of the feeding amount of the air guide plug 20 along the air guide slot 12 is realized.
In other embodiments of the present application, as shown in fig. 4, 5 and 7, the number of the protrusions 22 is two, and two protrusions 22 are respectively disposed on two opposite outer walls of the air guide plug 20 and are both configured to abut against an end surface of the limit step 16 facing away from the center of the cylinder 10.
Specifically, through set up two bellying 22 respectively at the relative both sides outer wall of air guide stopper 20, two bellying 22 all with spacing rank 16 looks butt like this, increased the butt area of contact of bellying and spacing rank 16 on the one hand equivalently to make the butt cooperation of bellying 22 and spacing rank 16 more stable, on the other hand has also realized the force balance of air guide stopper 20, makes air guide stopper 20 can be stably spacing in first position. This further improves the accuracy of the control of the amount of feed of the gas guide plug 20 along the gas guide channel 12, so that after the gas guide plug 20 has reached the first position, the edge of the interface between the gas guide channel 12 and the inner wall of the cylinder 10 and the edge of the end of the gas guide plug 20 facing the cylinder 10 can meet more accurately.
In other embodiments of the present application, as shown in fig. 4 and 5, the outer side wall of the boss 22 abuts against the inner wall of the secondary groove 15 adjacent thereto, the outer walls of the opposite sides of the air guide plug 20 where the boss 22 is not provided abut against the outer walls of the opposite sides of the adjacent secondary groove 15, respectively, and the driving mechanism 30 is used for supplying a pressure medium into the secondary groove 15 to drive the air guide plug 20 to move toward the first position, or for forming a low-pressure environment in the secondary groove 15 to drive the air guide plug 20 to move toward the second position.
Specifically, by making the outer side wall of the protrusion 22 abut against the inner wall of the secondary groove 15 adjacent to the outer side wall, and making the outer walls of the two opposite sides of the air guide plug 20, which are not provided with the protrusion 22, abut against the outer walls of the two opposite sides of the adjacent secondary groove 15, respectively, the outer wall of the air guide plug 20 is matched with the protrusion 22 to realize the sealing arrangement in the secondary groove 15, so that when the driving mechanism 30 supplies pressure medium to the secondary groove 15, the pressure medium cannot leak into the primary groove 14, and the air guide plug 20 can be efficiently pushed to move towards the first position.
When it is desired to move the gas block 20 toward the second position, the drive mechanism 30 can easily create a low pressure or vacuum environment within the secondary slot 15 due to the seal achieved by the protrusion 22 within the secondary slot 15, so that the gas block 20 can be rapidly retracted from the first position to the second position under the negative pressure. Alternatively, the drive mechanism 30 may be made using a pressure medium supply medium inside the compressor, which may be a gas or hydraulic oil or the like.
Optionally, the outer side wall of the protruding portion 22 may be embedded with a sealing strip 23, and the sealing strip 23 abuts against the inner wall of the secondary groove 15, so that the sealing effect may be further improved, and meanwhile, due to the flexible contact between the sealing strip 23 and the inner wall of the secondary groove 15, the smoothness of the movement of the air guide plug 20 in the air guide groove 12 is also improved.
The embodiment of the application also provides a compressor, which comprises the cylinder assembly. The compressor can be a single-cylinder compressor or a multi-cylinder compressor, and when the compressor is a multi-cylinder compressor, the compressor can comprise a plurality of cylinder assemblies.
The compressor provided by the embodiment of the application comprises the cylinder assembly, and when the air guide plug 20 in the cylinder assembly is located at the first position, the peripheral edge of one end, facing the cylinder 10, of the air guide plug 20 is connected with the edge of the junction of the air guide groove 12 and the inner wall of the cylinder 10, so that the cylinder assembly has a better high-energy working state, and the high-energy working efficiency of the compressor is improved.
The embodiment of the application also provides a refrigerating device which comprises the compressor.
The refrigeration equipment provided by the embodiment of the application comprises the compressor, and the compressor can realize the improvement of high-capacity working efficiency through the cylinder assembly arranged in the compressor, so that the high-capacity working efficiency of the refrigeration equipment comprising the compressor is also obviously improved.
The present invention is not intended to be limited to the particular embodiments shown and described, but is to be accorded the widest scope consistent with the principles and novel features herein disclosed.
Claims (10)
1. A cylinder assembly, characterized by: the air guide device comprises an air cylinder, an air guide plug and a driving mechanism, wherein an eccentrically rotating piston is arranged in the air cylinder, an air suction hole and an air guide groove are formed in the inner wall of the air cylinder, a backflow channel is formed in a region between the outer wall of the air cylinder and the inner wall of the air cylinder and is used for communicating the air suction hole with the air guide groove, the air guide plug is arranged in the air guide groove, the driving mechanism is used for driving the air guide plug to move to a first position towards the inner space of the air cylinder or to move to a second position away from the inner space of the air cylinder, when the air guide plug moves to the first position, the air guide plug blocks the air guide groove from being communicated with the backflow channel, the boundary edge of the air guide groove and the inner wall of the air cylinder and the outer peripheral edge of one end of the air guide plug towards the air cylinder are connected, and when the air guide plug moves to the second position, the backflow channel is communicated with the air guide groove.
2. The cylinder assembly of claim 1, wherein: when the air guide plug moves to the first position, one end surface of the air guide plug facing the cylinder is flush with the inner wall surface of the cylinder, the end surface of the air guide plug facing the cylinder is an arc surface, and the radian of the arc surface is the same as that of the inner wall surface of the cylinder.
3. The cylinder assembly of claim 1, wherein: the air guide groove is a long groove, and the air guide plug is arranged in the air guide groove along the length direction of the air guide groove.
4. The cylinder assembly of claim 1, wherein: the air guide grooves are distributed along the height direction of the air cylinder.
5. The cylinder assembly of claim 4, wherein: the air guide groove extends to the upper end face and the lower end face of the air cylinder in the height direction respectively along the two opposite ends of the air cylinder in the height direction.
6. The cylinder assembly according to any one of claims 1 to 5, characterized in that: the air guide groove comprises a primary groove and a secondary groove communicated with the primary groove, the primary groove is arranged on the inner wall of the cylinder, the secondary groove is communicated with the primary groove, the primary groove faces away from one side groove edge of the inner space of the cylinder, a limiting step is formed at the junction of the primary groove and the secondary groove, the air guide plug faces away from one end outer wall of the inner space of the cylinder and is provided with a protruding portion, and the protruding portion is used for enabling the air guide plug to move to the first position and enabling the limiting step to face away from one side end face of the inner space of the cylinder in an abutting mode.
7. The cylinder assembly of claim 6, wherein: the number of the protruding parts is two, and the two protruding parts are respectively arranged on the outer walls of two opposite sides of the air guide plug and are used for being abutted against one side end face of the limiting step, which faces away from the inner space of the air cylinder.
8. The cylinder assembly of claim 7, wherein: the outer side wall of the bulge part is abutted with the inner wall of the secondary groove adjacent to the bulge part, the outer walls of two opposite sides, where the bulge part is not arranged, of the air guide plug are abutted with the outer walls of two opposite sides, where the secondary groove is adjacent to the air guide plug, respectively, and the driving mechanism is used for supplying a pressure medium to the secondary groove to drive the air guide plug to move towards the first position, or is used for forming a low-pressure environment in the secondary groove to drive the air guide plug to move towards the second position.
9. A compressor, characterized by: comprising a cylinder assembly according to any one of claims 1 to 8.
10. A refrigeration apparatus, characterized by: comprising the compressor of claim 9.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010731556.3A CN111794972A (en) | 2020-07-27 | 2020-07-27 | Cylinder assembly, compressor and refrigeration equipment |
| PCT/CN2020/134956 WO2022021731A1 (en) | 2020-07-27 | 2020-12-09 | Cylinder assembly, compressor, and refrigeration device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010731556.3A CN111794972A (en) | 2020-07-27 | 2020-07-27 | Cylinder assembly, compressor and refrigeration equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111794972A true CN111794972A (en) | 2020-10-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010731556.3A Pending CN111794972A (en) | 2020-07-27 | 2020-07-27 | Cylinder assembly, compressor and refrigeration equipment |
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| CN (1) | CN111794972A (en) |
| WO (1) | WO2022021731A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022021731A1 (en) * | 2020-07-27 | 2022-02-03 | 广东美芝制冷设备有限公司 | Cylinder assembly, compressor, and refrigeration device |
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| JP6606392B2 (en) * | 2015-09-30 | 2019-11-13 | 北越工業株式会社 | Oil-cooled screw compressor |
| CN111794972A (en) * | 2020-07-27 | 2020-10-20 | 广东美芝制冷设备有限公司 | Cylinder assembly, compressor and refrigeration equipment |
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2020
- 2020-07-27 CN CN202010731556.3A patent/CN111794972A/en active Pending
- 2020-12-09 WO PCT/CN2020/134956 patent/WO2022021731A1/en active Application Filing
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| KR20040063502A (en) * | 2003-01-08 | 2004-07-14 | 삼성전자주식회사 | A variavle unit of a variable Rotary comprissor and A variable Rotary compressor |
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| CN202117928U (en) * | 2011-06-14 | 2012-01-18 | 广东美芝制冷设备有限公司 | Capacitance variable type rotary compressor |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2022021731A1 (en) * | 2020-07-27 | 2022-02-03 | 广东美芝制冷设备有限公司 | Cylinder assembly, compressor, and refrigeration device |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2022021731A1 (en) | 2022-02-03 |
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Application publication date: 20201020 |