CN111720311A - Rotary compressor and refrigeration cycle system - Google Patents
Rotary compressor and refrigeration cycle system Download PDFInfo
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- CN111720311A CN111720311A CN202010560640.3A CN202010560640A CN111720311A CN 111720311 A CN111720311 A CN 111720311A CN 202010560640 A CN202010560640 A CN 202010560640A CN 111720311 A CN111720311 A CN 111720311A
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- vane
- plate
- piston
- rotary compressor
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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
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B1/00—Compression machines, plants or systems with non-reversible cycle
- F25B1/04—Compression machines, plants or systems with non-reversible cycle with compressor of rotary type
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
The invention discloses a rotary compressor and a refrigeration cycle system, wherein the rotary compressor comprises a shell, a motor which is arranged in the shell and is provided with a crankshaft, and a compression mechanism which is arranged in the shell and is driven by the crankshaft of the motor, the compression mechanism comprises an air cylinder with a cylinder chamber and a slide sheet groove, a piston which eccentrically rotates in the cylinder chamber, a slide sheet and an elastic piece, the slide sheet can reciprocate in the slide sheet groove, the front end part of the slide sheet is abutted with the peripheral surface of the piston to divide the cylinder chamber into a suction chamber and a compression chamber, the slide sheet comprises at least three slide sheet plates which are overlapped in the axial direction of the crankshaft, the adjacent slide sheet plates can relatively move in the reciprocating direction of the slide sheet, and the elastic piece presses the slide sheet towards the piston to enable the front end part of the slide sheet to be abutted with the peripheral surface of. The rotary compressor can reduce the clearance between the sliding vane and the piston, reduce the gas quantity leaked from high-pressure gas in the compression cavity to the low-pressure cavity, improve the performance of the compressor and reduce the descending quantity of the refrigerating capacity of the refrigerating cycle system.
Description
Technical Field
The invention belongs to the technical field of compressors, and particularly relates to a sliding vane assembly, a rotary compressor and a refrigeration cycle system.
Background
Rotary compressors typically include a casing, a motor assembly and a compression mechanism, wherein the slide of the compression mechanism reciprocates in a slide groove of the cylinder, a spring is provided at the rear end of the slide, the spring presses the slide, whereby the front end of the slide abuts the outer peripheral surface of the piston in the compression chamber.
Disclosure of Invention
The present invention is based on the discovery and recognition by the inventors of the following facts and problems:
the inventor finds that when the compressor runs at a high speed, the crankshaft deforms to cause the piston to incline, so that the gap between the piston and the front end of the sliding sheet is increased, high-pressure gas in a compression cavity is easy to leak to a low-pressure cavity, the performance of the compressor is affected, and the refrigerating capacity of a refrigerating cycle is reduced. To this end, an aspect of the present invention provides a rotary compressor which can reduce a gap between a vane and a piston, reduce an amount of gas of high pressure gas in a compression chamber leaking to a low pressure chamber, improve performance of the compressor, and reduce a decrease amount of a cooling capacity of a refrigeration cycle system.
In another aspect of the present invention, a refrigeration cycle system is also provided.
A rotary compressor according to an embodiment of a first aspect of the present invention includes: a housing; a motor disposed within the housing and having a crankshaft; and a compression mechanism provided in the casing and driven by a crankshaft of the motor, the compression mechanism having: the air cylinder is internally provided with a cylinder chamber and a slide sheet groove; a piston eccentrically rotating within the cylinder chamber; a slide plate, which is reciprocatingly movable in the slide plate groove, a front end portion of which abuts against an outer circumferential surface of the piston to divide the cylinder chamber into a suction chamber and a compression chamber, the slide plate including at least three slide plate plates stacked in an axial direction of the crankshaft, adjacent slide plate plates being relatively movable in a reciprocating direction of the slide plate; and the elastic piece presses the sliding piece towards the piston so that the front end part of the sliding piece is abutted against the outer peripheral surface of the piston.
According to the rotary compressor provided by the embodiment of the invention, the sliding sheet is arranged in the sliding sheet groove in the compression mechanism and is formed by stacking at least three sliding sheet plates, so that the three sliding sheet plates can move relatively. The flexibility of the sliding sheet is improved by superposing the three sliding sheet plates, the gap between the sliding sheet and the piston can be reduced, the quantity of gas leaked from high-pressure gas in the compression cavity to the low-pressure cavity is reduced, the performance of the compressor is improved, and the descending quantity of the refrigerating capacity of the refrigerating cycle system is reduced.
In some embodiments, the number of the sliding sheet plates is n, the number of the elastic pieces is n-1, where n is a natural number greater than or equal to 3, and each elastic piece abuts against the rear ends of two adjacent sliding sheet plates.
In some embodiments, the rear end of the slide plate is provided with a recess, and the front end of each elastic member abuts in the recess of the adjacent slide plate.
In some embodiments, the sliding plate includes a first sliding plate, a second sliding plate and a third sliding plate which are adjacently arranged in sequence in the axial direction of the crankshaft, the rear ends of the first sliding plate and the third sliding plate are each provided with at least one recess, the rear end of the second sliding plate is provided with at least two recesses, the at least two recesses of the second sliding plate are arranged at intervals in the axial direction of the crankshaft, the elastic member includes a first elastic member and a second elastic member, the front end of the first elastic member abuts against the recess of the first sliding plate and one recess of the second sliding plate, and the front end of the second elastic member abuts against the other recess of the second sliding plate and the recess of the third sliding plate.
In some embodiments, the resilient member is a spring.
In some embodiments, the slider plate is a substantially square plate, and a plurality of the slider plates are stacked in their width direction.
In some embodiments, a plurality of the slide plate plates are substantially equal in width.
In some embodiments, the relative movement distance between adjacent slide plates is equal in the reciprocating direction of the slide.
In some embodiments, the outer circumference of the piston abuts the underside of the leading end of the slide plate when the piston is at the maximum tilt angle.
A refrigeration cycle system according to an embodiment of a second aspect of the present invention includes a compressor, a condenser, an expansion valve, an evaporator, and a gas-liquid separator provided between the expansion valve and the evaporator, the compressor being the rotary compressor described in any of the above embodiments.
Drawings
Fig. 1 is a schematic view of a structure of a longitudinal section of a rotary compressor according to an embodiment of the present invention, and a schematic view of a refrigeration cycle system to which the rotary compressor is connected.
Fig. 2 is a schematic view of a compression mechanism of the rotary compressor of fig. 1.
FIG. 3 is a schematic diagram of an example of a slider of the compression mechanism of FIG. 2.
Fig. 4 is a schematic structural view of another example of a vane of the compression mechanism of fig. 2.
Fig. 5 is a schematic view showing a structure of a compressing mechanism in the related art.
Reference numerals:
the rotary compressor 1, the casing 2, the exhaust pipe 3, the intake pipe 4, the compression mechanism 5, the motor 6, the evaporator 7, the reservoir 8, the expansion device 9, the vane 10, the second vane plate 11, the first vane plate 12, the third vane plate 13, the recess 14, the elastic member 15, the spring hole 16, the second vane 17, the cylinder 18, the cylinder chamber 19, the suction chamber 191, the compression chamber 192, the first gap 20, the second gap 21, the vane groove 22, the piston 23, the crankshaft 24, the eccentric shaft 25, the pilot hole 26, the main bearing 27, the sub bearing 28, the main exhaust hole 29, the sub exhaust hole 30, the main muffler 31, the sub muffler 32, and the condenser 33.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
A rotary compressor and a refrigeration cycle system and a vane assembly according to an embodiment of the present invention will be described with reference to the accompanying drawings.
As shown in fig. 1 to 4, a rotary compressor 1 according to an embodiment of the present invention includes a casing 2, a motor 6, and a compression mechanism 5.
The motor 6 is provided in the housing 2 and has a crankshaft 24. As shown in fig. 1, the motor 6 is fixed on the inner wall of the housing 2, and one end of the crankshaft 24 (the upper end of the crankshaft 24 in fig. 1) is inserted into the motor 6 and fixedly connected with the motor 6.
The compression mechanism 5 is provided in the casing 2 and is driven by a crankshaft 24 of the motor 6. As shown in fig. 1, the compressing mechanism 5 is fixed on the inner wall of the casing 2 and located below the motor 6, the other end of the crankshaft 24 (the lower end of the crankshaft 24 in fig. 1) is fixedly connected with the compressing mechanism 5, and the motor 6 drives the crankshaft 24 to rotate, thereby driving the compressing mechanism 5.
The compression mechanism 5 includes a cylinder 18, a piston 23, a slide 10, and an elastic member 15.
The cylinder 18 has a cylinder chamber 19 and a vane groove 22 therein, and a piston 23 eccentrically rotates in the cylinder chamber 19.
The vane 10 is reciprocally movable (reciprocally movable in the left-right direction shown in fig. 1) in the vane groove 22, and a tip end portion of the vane 10 (left end of the vane 10 in fig. 1) abuts against an outer peripheral surface of the piston 22 to divide the cylinder chamber 19 into a suction chamber 191 and a compression chamber 192. The vane 10 includes at least three vane plates stacked in an axial direction (up-down direction in fig. 1) of the crankshaft 24, and adjacent vane plates are relatively movable in a reciprocating direction of the vane 10.
The elastic member 15 presses the vane 10 toward the piston 23 so that the tip end of the vane 10 abuts against the outer peripheral surface of the piston 23.
According to the rotary compressor provided by the embodiment of the invention, the sliding sheet is arranged in the sliding sheet groove in the compression mechanism and is formed by stacking at least three sliding sheet plates, so that the three sliding sheet plates can move relatively. The flexibility of the sliding sheet is improved by superposing the three sliding sheet plates, the gap between the sliding sheet and the piston can be reduced, the quantity of gas leaked from high-pressure gas in the compression cavity to the low-pressure cavity is reduced, the performance of the compressor is improved, and the descending quantity of the refrigerating capacity of the refrigerating cycle system is reduced.
In some embodiments, there are n slide plates, the elastic members 15 are n-1 pieces, where n is a natural number equal to or greater than 3, and each elastic member 15 abuts against the rear ends of two adjacent slide plates (the right ends of the slide plates shown in fig. 1 and 3).
As shown in fig. 3 and 4, n sliding vane plates are stacked in the axial direction of the crankshaft 24 to constitute the sliding vane 10, and n-1 elastic members 15 are provided at the rear ends of the n sliding vane plates and on the inner wall of the casing 2. The left end of the elastic part 15 is connected with the right end of the sliding sheet plate, the left end of the elastic part 15 is provided with an upper joint and a lower joint which are oppositely arranged along the vertical direction, and the upper joint and the lower joint are respectively connected with the rear ends of two adjacent sliding sheet plates. The right end of the elastic member 15 is connected to the inner wall of the housing 2, and the elastic member 15 presses the n slide plates toward the piston 23 so that the left end portions of the n slide plates are in contact with the outer peripheral surface of the piston 23.
In some embodiments, as shown in fig. 3 and 4, the rear end of the slide plate is provided with a recess 14, and the front end of each elastic member 15 abuts within the recess 14 of the adjacent slide plate.
As shown in fig. 3 and 4, the left end of the elastic member 15 is provided with an upper tab and a lower tab which are oppositely disposed in the up-down direction, and which are engaged with the concave portion 14.
In some embodiments, the sliding plate includes a first sliding plate 12, a second sliding plate 11, and a third sliding plate 13 that are adjacently arranged in the axial direction of the crankshaft 24, the rear ends of the first sliding plate 12 and the third sliding plate 13 are each provided with at least one recess 14, the rear end of the second sliding plate 12 is provided with at least two recesses 14, the at least two recesses 14 of the second sliding plate 12 are arranged at intervals in the axial direction of the crankshaft 24, the elastic member 15 includes a first elastic member and a second elastic member, the front end of the first elastic member abuts in the recess 14 of the first sliding plate 12 and the one recess 14 of the second sliding plate 11, and the front end of the second elastic member abuts in the other recess 14 of the second sliding plate 11 and the recess 14 of the third sliding plate 13.
As shown in fig. 3 and 4, the first sliding sheet plate 12, the second sliding sheet plate 11 and the third sliding sheet plate 13 are stacked up and down to form the sliding sheet 10, the second sliding sheet plate 11 is located between the first sliding sheet plate 12 and the third sliding sheet plate 13, the elastic member 15 includes a first elastic member and a second elastic member, the left end of the elastic member 15 is provided with an upper joint and a lower joint which are oppositely arranged, the upper joint of the first elastic member is matched with the recess 14 of the first sliding sheet plate 12, the lower joint of the first elastic member is matched with the recess 14 above the second sliding sheet plate 11, the upper joint of the second elastic member is matched with the lower part of the second sliding sheet plate 11, and the lower joint of the second elastic member is matched with the recess 14 of the third sliding sheet plate 13.
In some embodiments, the resilient member 15 is a spring.
In some embodiments, as shown in fig. 3 and 4, the slider plate is a substantially square plate, and a plurality of slider plates are stacked in their width direction (up-down direction in fig. 1).
In some embodiments, as shown in fig. 3 and 4, the plurality of slide plate widths are substantially equal.
In some embodiments, as shown in fig. 4, the first, second, and third slider plates 12, 11, and 13 are the same size, and the relative movement distance between adjacent slider plates is equal in the reciprocating movement direction of the slider 10.
In some embodiments, the outer circumference of the piston 23 abuts the underside of the leading end of the slide plate when the piston 23 is at the maximum tilt angle.
As shown in fig. 4, the first, second, and third vane plates 12, 11, and 13 are the same size, and when the piston 23 is at the maximum inclination angle, the first, second, and third vane plates 12, 11, and 13 move by the elastic member 15 so that the lower side of the left end of the first vane plate 12, the lower side of the left end of the second vane plate 11, and the lower side of the left end of the third vane plate 13 abut on the outer periphery of the piston 23. Therefore, through the design of the first sliding sheet plate, the second sliding sheet plate and the third sliding sheet plate, the total clearance between the periphery of the piston and the sliding sheets is reduced, the gas quantity leaked from high-pressure gas in the compression cavity to the low-pressure cavity is reduced, the performance of the compressor is improved, and the descending quantity of the refrigerating capacity of the refrigerating cycle system is reduced.
In some embodiments, as shown in fig. 1, the rotary compressor 1 is composed of a motor 6 housed in a hermetic casing 2 having an opening of a discharge pipe 3, and a compression mechanism 5 driven by a crankshaft 24 connected to the motor 6, and a lubricant oil (not shown) is provided at the bottom of the casing 2.
The compression mechanism 5 is fixed to the inner wall of the casing 2, and the compression mechanism 5 includes a cylinder 18, a main bearing 27, a sub bearing 28, a crankshaft 24, a piston 23, and a vane 10.
The cylinder 18 has a cylinder chamber 19 and a vane groove 22 therein, the upper end surface of the cylinder chamber 19 has an upper opening, and the lower end surface of the cylinder chamber 19 has a lower opening.
A main bearing 27 is provided on the upper end surface of the cylinder chamber 19 for sealing the upper opening of the cylinder chamber 19, and a sub-bearing 28 is provided on the lower end surface of the cylinder chamber 19 for sealing the lower opening of the cylinder chamber 19.
The upper end of the crankshaft 24 is fixedly connected with the motor 6, the lower end of the crankshaft 24 sequentially penetrates through a main bearing 27, a cylinder chamber 19 and an auxiliary bearing 28, the main bearing 27 and the auxiliary bearing 28 are in sliding fit with the crankshaft 24, the lower end of the crankshaft 24 is provided with an eccentric shaft 25, and the eccentric shaft 25 is arranged in the cylinder chamber 19.
The sliding sheet 10 is arranged in the sliding sheet groove 22, the left end of the sliding sheet 10 abuts against the periphery of the piston 23, the right end of the sliding sheet 10 is connected to the inner wall of the machine shell 2 through the elastic piece 15, and the sliding sheet 10 can slide in the sliding sheet groove 22 in a reciprocating mode.
The slide 10 is composed of a second slide plate 11 located at the center, and a first slide plate 12 and a third slide plate 13 connected to the upper and lower surfaces thereof, the second slide plate 11, the first slide plate 12, and the third slide plate 13 are respectively abutted against the outer periphery of the piston 23 and reciprocate, and 2 elastic pieces 15 located at the right end of the slide 10 press the right ends of the second slide plate 11 and the first slide plate 12, and the right ends of the second slide plate 11 and the third slide plate 13, respectively.
Preferably, by enlarging the up-down dimension H of the cylinder chamber 19, the displacement of the cylinder chamber 19 is increased, so that the outer peripheral height dimension of the piston 23 is also increased. This can increase the number of vane plates constituting the vane 10, for example, by adding the nth vane plate, and the vane 10 is constituted by n vane plates.
Preferably, low-pressure gas sucked by the intake pipe 4 connected to the accumulator 8 is compressed into high-pressure gas in the compression chamber 192 of the cylinder chamber 19, the high-pressure gas is discharged from the main exhaust holes 29 of the main bearing 27 and the sub exhaust holes 30 of the sub bearing 28 into the main muffler 31 and the sub muffler 32, respectively, and the high-pressure gas of the sub muffler 32 is merged with the high-pressure gas in the main muffler 31 through the penetration hole 26.
Preferably, the merged high-pressure gas in the main muffler 31 is discharged to a lower space of the motor 6, gradually moves to an upper space of the motor 6, is finally discharged from the discharge pipe 3, passes through the condenser 33 to become a liquid refrigerant, passes through the expansion device 9, is evaporated in the evaporator 7 to become a low-pressure gas, and flows from the accumulator 8 into the compression chamber 192 of the cylinder chamber 19 through the suction pipe 4, thereby forming a refrigeration cycle including the rotary compressor 1.
In some embodiments, as shown in fig. 2, an eccentric shaft 25 of a lower end of a crankshaft 24 rotating counterclockwise rotates so that a piston 23 revolves in a cylinder chamber 19, a left end of a vane 10 abuts an outer circumference of the piston 23, and the vane 10 reciprocally slides in a vane slot 22.
Preferably, when the rotation speed of the crankshaft 24 driven by the motor 6 is, for example, 60rps (60 revolutions per second), the number of revolutions of the piston 23 is 60 times per second, and the number of reciprocating slides of the slider 10 is also 60 times per second. Since the high-pressure gas and the elastic material 15 in the compression chamber 192 acting on the right end of the vane 10 press the left end of the vane 10 against the outer circumferential surface of the piston 23, the number of revolutions (dotted line arrow in fig. 2) of the piston 23 is 10% (6 times/second) of the number of revolutions (solid line arrow in fig. 2). The pressure of the left end of the sliding sheet 10 on the piston 23 limits the number of times of the rotation of the piston 23, so that the abrasion between the left end of the sliding sheet 10 and the outer periphery of the piston 23 is reduced.
In some embodiments, as shown in fig. 3, the sliding piece 10 includes a first sliding piece plate 12, a second sliding piece plate 11 and a third sliding piece plate 13 which are arranged adjacently in the up-down direction, the rear ends of the first sliding piece plate 12 and the third sliding piece plate 13 are each provided with one recess 14, and the rear end of the second sliding piece plate 12 is provided with two recesses 14.
The elastic members 15 are springs, the number of the elastic members 15 is 2, the left ends of the springs are fitted into the 2 recesses 14 provided in the second, first, and third vane plates 11, 12, and 13, and the rear ends of the vanes 10 are pressed, and the right ends of the springs are fitted into the spring holes 16 on the outer periphery of the cylinder 18, respectively.
When the compression mechanism 5 is operated, a compression load acting on the piston 23 revolving in the cylinder chamber 19 greatly changes, and the load change deforms the crankshaft 24 toward the low-pressure chamber side of the cylinder chamber 19, so that the eccentric shaft 25 in the piston 23 is slightly inclined.
When the vertical dimension of the cylinder chamber 19 is H and the vertical dimension of the piston 23 revolving in the cylinder chamber 19 is R, H-R is equal to C, and C is the sliding gap of the piston 23. When eccentric shaft 25 in piston 23 is inclined due to inclination of crankshaft 24, piston 23 is inclined within the range of sliding clearance C, and therefore a clearance is generated between the outer periphery of piston 23 and the left end of the vane plate.
In some embodiments, as shown in fig. 4, when the inclination angle of the piston 23 is increased when the compression mechanism 5 is operated, the gap between the piston 23 and the left end of the vane plate constituting the vane 10 is W, and since the up-down dimension h of the 3 vane plates is the same, the 3 gaps W between the second vane plate 11, the first vane plate 12, and the third vane plate 13 and the piston 23 are the same.
The right end of the slide plate is pressed by the high-pressure gas and the elastic member 15, and the left end of the slide plate abuts against the outer periphery of the piston 23. At this time, 3 first gaps 20 are generated, the first gaps 20 serve as leakage paths through which the high-pressure gas in the cylinder chamber 19 leaks to the low-pressure chamber, the area of the first gaps 20 is a, a is 0.5W × h, and the total gap between the vane 10 and the outer periphery of the piston 23 is 3A.
In the related art, as shown in fig. 5, the outer dimension of the second vane 17 is the same as that of the vane 10, and the area of the second gap 21 generated between the outer periphery of the piston 23 and the left end of the second vane 17 is B, which is 0.5 × 3h × 3W — 0.5 × h W9.
In the slider 10 according to the exemplary embodiment of the present invention, the total gap of the slider 10 formed of 3 slider plates is 1/3 of the total gap of the second slider 17, compared with the second slider 17 in the related art. Further, even if the total gap is the same, the smaller the gap area is, the smaller the amount of leakage gas is, and therefore, the vane 10 in the embodiment of the present invention has an effect of greatly reducing the amount of leakage gas.
Although the rotary compressor of the embodiment of the present invention is described based on a single-cylinder rotary compressor, it can be easily applied to a multi-cylinder rotary compressor such as a twin cylinder.
A refrigeration cycle system according to an embodiment of the present invention will be described with reference to fig. 1.
A refrigeration cycle system according to an embodiment of the present invention includes the rotary compressor 1 of any of the above embodiments. The refrigeration cycle system further includes an exhaust pipe 3, a suction pipe 4, a condenser 33, a liquid reservoir 8, an expansion device 9, and an evaporator 7, all of which are located outside the casing 2.
The top of the casing 2 is connected to the exhaust pipe 3, and low-pressure gas sucked by the intake pipe 4 connected to the accumulator 8 is compressed in the cylinder chamber 19 into high-pressure gas, which is discharged from the main exhaust holes 29 of the main bearing 27 and the sub exhaust holes 30 of the sub bearing 28 to the main muffler 31 and the sub muffler 32, respectively, and the high-pressure gas discharged from the sub muffler 32 merges with the high-pressure gas in the main muffler 31 through the penetration hole 26.
The merged high-pressure gas of the main muffler 31 is discharged to a lower space of the motor 6 and moves to an upper space of the motor 6, the high-pressure gas discharged from the exhaust pipe 3 becomes a liquid refrigerant in the condenser 33, the low-pressure refrigerant passing through the expansion device 9 is evaporated into a low-pressure gas in the evaporator 7, and the low-pressure gas flows from the accumulator 8 into the cylinder chamber 19 through the intake pipe 4, thereby establishing a refrigeration cycle including the rotary compressor 1.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.
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 at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the present disclosure, the terms "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" and the like mean that a specific feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present disclosure. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (10)
1. A rotary compressor, comprising:
a housing;
a motor disposed within the housing and having a crankshaft; and
a compression mechanism disposed within the housing and driven by the crankshaft of the motor, the compression mechanism having:
the air cylinder is internally provided with a cylinder chamber and a slide sheet groove;
a piston eccentrically rotating within the cylinder chamber;
a slide plate, which is reciprocatingly movable in the slide plate groove, a front end portion of which abuts against an outer circumferential surface of the piston to divide the cylinder chamber into a suction chamber and a compression chamber, the slide plate including at least three slide plate plates stacked in an axial direction of the crankshaft, adjacent slide plate plates being relatively movable in a reciprocating direction of the slide plate;
and the elastic piece presses the sliding piece towards the piston so that the front end part of the sliding piece is abutted against the outer peripheral surface of the piston.
2. The rotary compressor according to claim 1, wherein the number of the vane plates is n, the number of the elastic members is n-1, wherein n is a natural number of 3 or more, and each of the elastic members abuts against rear ends of adjacent two of the vane plates.
3. The rotary compressor of claim 2, wherein the rear end of the vane plate is provided with a recess, and the front end of each of the elastic members abuts in the recess of the adjacent vane plate.
4. The rotary compressor of claim 3, wherein the vane plates include a first vane plate, a second vane plate, and a third vane plate that are arranged adjacent to each other in the axial direction of the crankshaft, rear ends of the first vane plate and the third vane plate are each provided with at least one of the recesses, a rear end of the second vane plate is provided with at least two of the recesses, the at least two recesses of the second vane plate are arranged at intervals in the axial direction of the crankshaft,
the elastic member comprises a first elastic member and a second elastic member, the front end of the first elastic member abuts against the concave part of the first slide plate and one concave part of the second slide plate, and the front end of the second elastic member abuts against the other concave part of the second slide plate and the concave part of the third slide plate.
5. The rotary compressor of any one of claims 1 to 4, wherein the elastic member is a spring.
6. The rotary compressor of any one of claims 1 to 4, wherein the vane plates are substantially square plates, and a plurality of the vane plates are stacked in their width direction.
7. The rotary compressor of claim 6, wherein a plurality of the vane plates are substantially equal in width.
8. The rotary compressor of any one of claims 1 to 4, wherein a relative moving distance between adjacent vane plates is equal in a reciprocating moving direction of the vane.
9. The rotary compressor of claim 1, wherein an outer periphery of the piston abuts against a lower side of a front end of the vane plate when the piston is at a maximum inclination angle.
10. A refrigeration cycle system comprising a compressor, a condenser, an expansion valve, an evaporator, and a gas-liquid separator provided between the expansion valve and the evaporator, wherein the compressor is a rotary compressor according to any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010560640.3A CN111720311A (en) | 2020-06-18 | 2020-06-18 | Rotary compressor and refrigeration cycle system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010560640.3A CN111720311A (en) | 2020-06-18 | 2020-06-18 | Rotary compressor and refrigeration cycle system |
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| CN111720311A true CN111720311A (en) | 2020-09-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010560640.3A Pending CN111720311A (en) | 2020-06-18 | 2020-06-18 | Rotary compressor and refrigeration cycle system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112360737A (en) * | 2020-10-23 | 2021-02-12 | 珠海格力节能环保制冷技术研究中心有限公司 | Sliding vane and compressor |
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| JPH02104996A (en) * | 1988-10-14 | 1990-04-17 | Furukawa Electric Co Ltd:The | Compound vane for compressor and manufacture thereof |
| JPH05141375A (en) * | 1991-11-18 | 1993-06-08 | Matsushita Refrig Co Ltd | Rotary compressor |
| CN203463285U (en) * | 2012-08-09 | 2014-03-05 | 东芝开利株式会社 | Rotary compressor and refrigeration cycle device |
| CN104541060A (en) * | 2012-08-09 | 2015-04-22 | 东芝开利株式会社 | Rotary compressor and refrigeration cycle apparatus |
| CN206221248U (en) * | 2016-11-18 | 2017-06-06 | 广东美芝制冷设备有限公司 | The compression mechanism and rotary compressor of rotary compressor |
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| JPH02104996A (en) * | 1988-10-14 | 1990-04-17 | Furukawa Electric Co Ltd:The | Compound vane for compressor and manufacture thereof |
| JPH05141375A (en) * | 1991-11-18 | 1993-06-08 | Matsushita Refrig Co Ltd | Rotary compressor |
| CN203463285U (en) * | 2012-08-09 | 2014-03-05 | 东芝开利株式会社 | Rotary compressor and refrigeration cycle device |
| CN104541060A (en) * | 2012-08-09 | 2015-04-22 | 东芝开利株式会社 | Rotary compressor and refrigeration cycle apparatus |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112360737A (en) * | 2020-10-23 | 2021-02-12 | 珠海格力节能环保制冷技术研究中心有限公司 | Sliding vane and compressor |
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