KR20140086482A - Compressor - Google Patents
Compressor Download PDFInfo
- Publication number
- KR20140086482A KR20140086482A KR1020120157040A KR20120157040A KR20140086482A KR 20140086482 A KR20140086482 A KR 20140086482A KR 1020120157040 A KR1020120157040 A KR 1020120157040A KR 20120157040 A KR20120157040 A KR 20120157040A KR 20140086482 A KR20140086482 A KR 20140086482A
- Authority
- KR
- South Korea
- Prior art keywords
- compression space
- vane
- piston
- suction port
- cylinder portion
- Prior art date
Links
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- 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
-
- 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
-
- 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
- F04C23/008—Hermetic pumps
-
- 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
- F04C29/0021—Systems for the equilibration of forces acting on the pump
- F04C29/0028—Internal leakage control
-
- 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
- F04C29/0021—Systems for the equilibration of forces acting on the pump
- F04C29/0035—Equalization of pressure pulses
-
- 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
- F04C2210/00—Fluid
- F04C2210/26—Refrigerants with particular properties, e.g. HFC-134a
-
- 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
- F04C2240/40—Electric motor
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S415/00—Rotary kinetic fluid motors or pumps
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S417/00—Pumps
- Y10S417/902—Hermetically sealed motor pump unit
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
Description
BACKGROUND OF THE
Generally, a compressor is applied to a vapor compression type refrigeration cycle such as a refrigerator or an air conditioner (hereinafter abbreviated as a refrigeration cycle). The refrigerant compressor has been introduced with a constant-speed compressor driven at a constant speed or an inverter-type compressor controlled in rotation speed.
The compressor is generally referred to as a closed compressor in the case where the compression section operated by the transmission section which is a motorized section and the compression section operated by the transmission section are provided together in the internal space of the closed casing and the case where the transmission section is separately provided outside the casing is referred to as an open compressor have. Most of the refrigeration appliances for home use or commercial use are hermetically sealed compressors.
A hermetic compressor can be classified into a single-type hermetic compressor and a double-hermetic type compressor according to the number of cylinders. In the hermetically sealed compressor, one cylinder having one compression space is provided inside the casing, while the double-hermetically sealed compressor has a plurality of cylinders having one compression space inside the casing.
Compressed air compressors can be divided into 1 suction-2 discharge system and 1 suction-1 discharge system depending on the method of compressing the refrigerant. In the one suction-1 discharge mode, the accumulator is connected to the first cylinder through the primary suction flow path, and the second cylinder is connected to the discharge side of the first cylinder connected to the accumulator through the secondary suction flow path, And then discharged into the inner space of the casing. On the other hand, the one suction-2 discharge system is a system in which a plurality of cylinders are branched and connected to one suction pipe, and refrigerant is respectively compressed in a plurality of cylinders and discharged into the inner space of the casing.
1 is a longitudinal sectional view showing a rotary compressor of a conventional 1 suction-2 discharge type. As shown in the figure, the rotary compressor of the conventional one-suction-two-discharge type has a
The
The
The first
When the power source is applied to the
However, in the above-described conventional 1-intake-2 discharge type rotary compressor, the first
In view of this, conventionally, as disclosed in Korean Patent No. 10-0812934, a 1-cylinder-2 compression chamber type rotary compressor having two compression spaces in one cylinder has been introduced. FIG. 2 is a longitudinal sectional view showing one embodiment of a conventional 1-cylinder-2 compression chamber rotary compressor, and FIG. 3 is a transverse sectional view showing a cylinder and a piston in a 1-cylinder-2 compression chamber type compressor according to FIG.
2, a conventional 1-cylinder-2 compression chamber type rotary compressor (hereinafter abbreviated as a 1-cylinder-2 compression chamber compressor) has a first compression space V1 And a second compression space V2 are formed. The
A
3, the
The inner diameter of the
The
In the drawing,
In the conventional one-cylinder-two compression seal compressor as described above, the
Thereby, the first compression space (V1) and the second compression space (V2) are disposed adjacent to each other on the same plane, and the moment and the friction loss can be reduced. In addition, since the
However, in the conventional one-cylinder-two compression seal compressor as described above, since the
In order to change the volume of the
In the conventional one-cylinder-two compression chamber compressor, since the
In the conventional one-cylinder-two compression chamber compressor, if the inner diameters of the
It is an object of the present invention to provide a compressor capable of reducing the refrigerant leakage by reducing the weight of the rotating body and having a small power loss compared to the same cooling power and a small bearing area.
Another object of the present invention is to provide a compressor which can easily expand and change the volume of a cylinder.
Another object of the present invention is to provide a compressor capable of reducing vibration noise by buffering refrigerant discharged from each compression space.
Another object of the present invention is to provide a compressor capable of preventing a refrigerant leakage due to deformation of a member and a reduction in refrigerant suction amount by setting an appropriate standard of the suction port.
In order to accomplish the object of the present invention, there is provided an air conditioner comprising: a casing to which a suction pipe is connected; A crankshaft for transmitting a rotational force of a driving portion provided in the casing; A plurality of bearing plates for supporting the crankshaft; A cylinder fixedly coupled between the bearing plates and connected to the outer cylinder portion and the inner cylinder portion by a vane portion to form a compression space; And a rolling piston slidably coupled to the vane portion between the outer cylinder portion and the inner cylinder portion and separating the compression space into an outer compression space and an inner compression space while pivotally moving by the crankshaft, And a second suction port communicating with the first suction port and the inner compression space is formed in the outer surface of the rolling piston, the outer piston having a first suction port penetrating from the outer circumferential surface to an inner circumferential surface and coupled to the suction pipe, Is provided.
A cylinder having an annular outer cylinder part and an inner cylinder part formed at a predetermined interval in the radial direction and a vane part connecting the outer cylinder part and the inner cylinder part in a radial direction; And a piston portion slidably coupled to the vane portion between the outer cylinder portion and the inner cylinder portion to separate the compression space between the outer cylinder portion and the inner cylinder portion into an outer compression space and an inner compression space, And a drive transmission portion extending from the crankshaft and eccentrically coupled to the center of the axis of the crankshaft; And a rolling bush which is rotatably inserted into the rolling piston and is slidably coupled to both sides of the vane portion, wherein a suction port for guiding the refrigerant to the inner compression space is formed in the piston portion of the rolling piston from an outer circumferential surface to an inner circumferential surface A compressor is provided.
The rotary compressor of the one-cylinder-two compression chamber type according to the present invention is characterized in that a cylinder having an outer cylinder portion and an inner cylinder portion is fixed and the rolling piston is swung in the cylinder, It is possible to reduce the possibility that the refrigerant leaks due to a small power loss compared to the same cooling power and a small bearing area.
In addition, since the cylinder is fixed and the rolling piston is pivotally moved, a protruding portion is formed on one side of the outer circumferential surface of the outer cylinder portion, so that a clearance space is formed between the inner circumferential surface of the casing and the outer circumferential surface of the cylinder, The diameter can be enlarged and the volume of the cylinder can easily be enlarged and changed.
Since the first discharge port communicating with the outer compression space and the second discharge port communicating with the inner compression space are formed in opposite directions to each other, the discharged refrigerant is buffered with respect to each other to reduce the pulsation phenomenon, thereby reducing the vibration noise of the compressor have.
In addition, by appropriately setting the inner diameter of the suction port provided in the rolling piston, the inner diameter of the suction port is too large to prevent the refrigerant from leaking due to deformation of the rolling piston, and the inner diameter of the suction port is too small to prevent the suction amount of the refrigerant from being reduced This can improve compressor performance.
1 is a longitudinal sectional view showing a rotary compressor of the conventional 1 suction-2 discharge system,
2 is a vertical cross-sectional view showing one embodiment of a conventional 1-cylinder-2 compression chamber type rotary compressor,
Fig. 3 is a cross-sectional view taken along the line "II" in Fig. 2,
4 is a longitudinal sectional view showing a rotary compressor of a one-cylinder-two compression chamber type according to the present invention,
FIG. 5 is a perspective view of the compression unit of FIG. 4,
Fig. 6 is a sectional view taken along line II-II in Fig. 4,
7 is a cross-sectional view taken along the line "III-III" in Fig. 6,
Fig. 8 is a cross-sectional view taken along the line "IV-IV" in Fig. 6, and is a longitudinal sectional view for explaining the specifications of the suction port of the rolling piston in the compressor of Fig.
9 is a cross-sectional view showing the compression process of the outer compression space and the inner compression space in FIG.
Hereinafter, a compressor according to the present invention will be described in detail with reference to an embodiment shown in the accompanying drawings.
FIG. 4 is a longitudinal sectional view showing a rotary compressor of a one-cylinder-two compression chamber type according to the present invention, FIG. 5 is a perspective view showing decompression of a compression part in the compressor of FIG. Fig. 8 is a cross-sectional view taken along the line IV-IV in Fig. 6. In the compressor according to Fig. 4, the rolling piston FIG. 3 is a longitudinal sectional view for explaining the specifications of the suction port of FIG.
As shown in the drawings, the rotary compressor of the one-cylinder-two compression chamber type according to the embodiment of the present invention is provided with a
The
The
The
The
The
The
The
The
The inner diameter D1 of the
For example, if the second discharge port is formed in the
5 and 6, the
4, the
The
The
The height H2 of the
The
5 to 7, the
A stepped
5 to 7, the rolling
The outer diameter of the
A
The volume of the second compression space V2 is smaller than the volume of the first compression space V1 so that the sectional area D4 of the
That is, the diameter D41 of the
The diameter D41 of the
The
The
A
The
In the drawing,
The rotary compressor of the 1 cylinder-2 compression chamber type according to the present embodiment as described above is operated as follows
When the
9 (a) and 9 (b), when the
9 (c) and 9 (d), when the
In the rotary compressor of the 1 cylinder-2 compression chamber type according to the present embodiment as described above, since the
In this embodiment, the
Also, in this embodiment, since the
In this embodiment, the inner diameter of the
1: casing 2:
23: crank
100: compression section 110: upper bearing
112a: First discharge port 120: Lower bearing
122a: second discharge port 130: cylinder
131:
131b: first intake port 132: inner cylinder part
133:
140: Rolling piston 141: Piston part
141a: second suction port 142: drive transmission portion
D3: first inlet diameter D41, D42: second inlet diameter
V1, V2: outer side, inner side compression space
Claims (8)
A crankshaft for transmitting a rotational force of a driving portion provided in the casing;
A plurality of bearing plates for supporting the crankshaft;
A cylinder connected to the annular outer cylinder portion and the inner cylinder portion by a vane portion fixedly coupled between the bearing plates to form a compression space; And
And a rolling piston slidably coupled to the vane portion between the outer cylinder portion and the inner cylinder portion and separating the compression space into an outer compression space and an inner compression space while pivotally moving by the crankshaft,
Wherein the outer cylinder portion is formed with a first suction port penetrating from an outer circumferential surface to an inner circumferential surface and coupled with the suction pipe,
Wherein the rolling piston has a second suction port penetrating from an outer circumferential surface to an inner circumferential surface to communicate the first suction port and the inner compression space.
The rolling piston may include:
A piston portion formed in an annular shape and disposed between the outer cylinder portion and the inner cylinder portion; And
And a drive transmission portion extending from the piston portion in a plate shape and coupled to an eccentric portion of the crankshaft,
And the second suction port is formed so that its diameter is not larger than the inner peripheral surface height of the piston portion.
And the diameter of the second suction port is formed to be larger than a height obtained by subtracting the height multiplied by 1.5 from the thickness of the drive transmission portion at the inner peripheral surface height of the piston portion.
Sectional area of the second suction port is smaller than a cross-sectional area of the first suction port.
In the vane portion,
A first vane portion connected to an inner circumferential surface of the outer cylinder portion; And
And a second vane portion connected to an outer circumferential surface of the inner cylinder portion,
And the height of the first vane portion is different from the height of the second vane portion.
A piston portion slidably coupled to the vane portion between the outer cylinder portion and the inner cylinder portion and separating a compression space between the outer cylinder portion and the inner cylinder portion into an outer compression space and an inner compression space; A rolling piston having a drive transmitting portion extending and eccentrically coupled with respect to an axial center of the crankshaft; And
And a rolling bush rotatably inserted into the rolling piston and slidably coupled to both sides of the vane portion,
The piston portion of the rolling piston is formed with a suction port for guiding the refrigerant to the inner compression space from the outer circumferential surface to the inner circumferential surface,
Wherein the inlet side diameter of the inlet is larger than the outlet side diameter.
A slidable surface is formed on the upper surface of the vane portion so that the driving transmission portion of the rolling piston is slidably inserted in the radial direction,
Wherein the inlet side diameter of the inlet port is larger than the height from the bottom surface of the vane portion to the sliding surface and the outlet side diameter of the inlet port is smaller than the height from the bottom surface to the sliding surface of the vane portion.
Wherein a diameter of an outlet of the suction port is formed to be greater than a height from a bottom surface of the vane portion to a slid surface minus a thickness of the drive transmission portion.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020120157040A KR20140086482A (en) | 2012-12-28 | 2012-12-28 | Compressor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020120157040A KR20140086482A (en) | 2012-12-28 | 2012-12-28 | Compressor |
Publications (1)
Publication Number | Publication Date |
---|---|
KR20140086482A true KR20140086482A (en) | 2014-07-08 |
Family
ID=51735757
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020120157040A KR20140086482A (en) | 2012-12-28 | 2012-12-28 | Compressor |
Country Status (1)
Country | Link |
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KR (1) | KR20140086482A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2021045361A1 (en) * | 2019-09-04 | 2021-03-11 | 삼성전자주식회사 | Rotary compressor and home appliance including same |
CN113623182A (en) * | 2021-08-19 | 2021-11-09 | 珠海格力节能环保制冷技术研究中心有限公司 | Displacement self-adjusting compressor and refrigerator comprising same |
-
2012
- 2012-12-28 KR KR1020120157040A patent/KR20140086482A/en not_active Application Discontinuation
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2021045361A1 (en) * | 2019-09-04 | 2021-03-11 | 삼성전자주식회사 | Rotary compressor and home appliance including same |
US12000401B2 (en) | 2019-09-04 | 2024-06-04 | Samsung Electronics Co., Ltd. | Rotary compressor with first and second main suction ports |
CN113623182A (en) * | 2021-08-19 | 2021-11-09 | 珠海格力节能环保制冷技术研究中心有限公司 | Displacement self-adjusting compressor and refrigerator comprising same |
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WITN | Withdrawal due to no request for examination |