WO2019221400A1 - Compressor having integrated valve seat and stopper seat - Google Patents
Compressor having integrated valve seat and stopper seat Download PDFInfo
- Publication number
- WO2019221400A1 WO2019221400A1 PCT/KR2019/004591 KR2019004591W WO2019221400A1 WO 2019221400 A1 WO2019221400 A1 WO 2019221400A1 KR 2019004591 W KR2019004591 W KR 2019004591W WO 2019221400 A1 WO2019221400 A1 WO 2019221400A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- discharge
- valve
- stopper
- fixed scroll
- scroll
- Prior art date
Links
Images
Classifications
-
- 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
- F04C18/02—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
- F04C18/0207—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form
- F04C18/0215—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form where only one member is moving
-
- 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
- F04C18/02—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
-
- 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
-
- 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
- F04C29/124—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet with inlet and outlet valves specially adapted for rotary or oscillating piston pumps
- F04C29/126—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet with inlet and outlet valves specially adapted for rotary or oscillating piston pumps of the non-return type
- F04C29/128—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet with inlet and outlet valves specially adapted for rotary or oscillating piston pumps of the non-return type of the elastic type, e.g. reed valves
-
- 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
- F04C2240/70—Use of multiplicity of similar components; Modular construction
-
- 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
- F04C2240/80—Other components
- F04C2240/805—Fastening means, e.g. bolts
Definitions
- the present invention relates to a compressor including a simultaneous fastening structure of the valve seat, the stopper seat and the discharge cover.
- a compressor is applied to a vapor compression refrigeration cycle (hereinafter, referred to as a refrigeration cycle) such as a refrigerator or an air conditioner.
- a refrigeration cycle such as a refrigerator or an air conditioner.
- the compressor may be classified into a reciprocating type, a rotary type, and a scroll type according to a method of compressing a refrigerant.
- the scroll compressor is a compressor in which a compression chamber is formed between the fixed wrap of the fixed scroll and the swing wrap of the swing scroll by pivoting the swing scroll to a fixed scroll fixed to the inner space of the sealed container.
- Scroll compressors have a relatively high compression ratio compared to other types of compressors, and the suction, compression, and discharge strokes of the refrigerant are smoothly used, and thus are widely used for refrigerant compression in an air conditioner.
- Such scroll compressors may be classified into upper compression type or lower compression type according to the position of the drive motor and the compression part.
- the upper compression type is a method in which the compression part is located above the drive motor
- the lower compression type is a method in which the compression part is located below the drive motor.
- the compression unit includes a main frame fixed to the inner space of the casing, a fixed scroll coupled to one side of the main frame, and a pivoting scroll which pivots between the main frame and the fixed scroll and forms the fixed scroll and the compression chamber.
- the fixed scroll is provided with a plurality of discharge ports through which the refrigerant compressed in the compression chamber is discharged.
- the conventional scroll compressor has a structure in which a discharge valve and a valve stopper for limiting the movable range of the discharge valve are individually fastened and assembled for each discharge port.
- the individual fastening structure of the discharge valve increases the number of manufacturing steps of the scroll compressor and causes the manufacturing cost to rise.
- the lower compression scroll compressor also includes a discharge cover that forms a lower discharge chamber for guiding the refrigerant discharged from the discharge port.
- a fastening hole for fastening the discharge cover is formed separately on the fixed scroll, so that a process for fastening the discharge cover has to be further performed.
- the conventional scroll compressor assembles a plurality of discharge valves, valve stoppers, and discharge covers in separate processes, thereby complicating the manufacturing process of the scroll compressor and increasing the manufacturing cost.
- the conventional scroll compressor has a problem that a loss due to overcompression occurs during operation of the scroll compressor when the static frictional force by the oil in the discharge valve increases.
- An object of the present invention is to provide a scroll compressor that can simplify the fastening structure and reduce the manufacturing cost by fastening the discharge valve, the valve stopper and the discharge cover at the same time.
- an object of the present invention is to provide a scroll compressor that can flatten one surface of the fixed scroll and integrally fix the valve seat, the stopper seat and the discharge cover on the one surface, thereby preventing leakage of refrigerant and increasing reliability.
- an object of the present invention is to provide a scroll compressor that can reduce the loss due to overcompression during operation of the compressor by reducing the static frictional force caused by the oil generated between the discharge valve and the discharge port.
- the scroll compressor according to the present invention includes a valve seat having a plurality of discharge valves, a stopper seat having a plurality of valve stoppers, and a fixing member for fixing the discharge cover disposed on the stopper seat to one surface of the fixed scroll. .
- the present invention can simplify the fastening structure of the discharge valve and the discharge cover, it is possible to reduce the manufacturing process and reduce the manufacturing cost.
- the scroll compressor according to the present invention includes a fixed scroll having one surface processed so as to be disposed on the same plane in contact with one surface of the valve seat, and a valve seat, a stopper seat, and a discharge cover to which a layer layer is coupled on the fixed scroll.
- the present invention can reduce the leakage amount of the refrigerant generated between the fixed scroll and the discharge cover, it is possible to improve the reliability of the compressor.
- the scroll compressor according to the present invention includes a stepped groove formed to have a step inwardly in an area overlapping the discharge valve, and a fixed scroll including a rounded portion which contacts one side of the discharge valve and protrudes from the stepped groove.
- the discharge valve, the valve stopper, and the discharge cover may be simultaneously locked, thereby eliminating the step of separately assembling the discharge valve and the valve stopper for each discharge port of the fixed scroll.
- the present invention can also unify the process for fixing the discharge cover by fixing the discharge valve and the valve stopper together with the discharge cover. That is, according to the present invention, by simultaneously fastening the discharge valve, the valve stopper and the discharge cover, the fastening structure can be simplified to reduce the number of processing steps required for the manufacture of the scroll compressor. This simultaneous fastening structure can reduce the labor required to produce the product, the manufacturing time and cost required to produce the product, thereby improving product competitiveness.
- the scroll compressor according to the present invention can reduce the amount of refrigerant leaked between the fixed scroll and the discharge cover as the coupling structure between the fixed scroll, the valve seat, the stopper seat and the discharge cover is simplified. As the refrigerant leakage decreases, the operation efficiency and operational stability of the scroll compressor may be improved, and the reliability of the product may be improved.
- the scroll compressor according to the present invention can implement accurate operation of the discharge valve by reducing the static frictional force caused by the oil generated between the discharge valve and the discharge port. Accordingly, the present invention can reduce the loss due to overcompression during operation of the compressor to improve the operating efficiency of the compressor. In addition, the present invention can improve the operational stability of the scroll compressor, it is possible to increase the reliability and product recognition and sales volume for the product.
- FIG. 1 is a cross-sectional view showing a scroll compressor according to an embodiment of the present invention.
- FIG. 2 is a partial perspective view showing components coupled onto the fixed scroll of FIG. 1.
- FIG. 3 is an exploded perspective view of the components coupled onto the fixed scroll of FIG. 1;
- FIG. 4 is a plan view illustrating the valve seat of FIG. 3.
- FIG. 5 is a plan view illustrating the stopper sheet of FIG. 3.
- FIG. 5 is a plan view illustrating the stopper sheet of FIG. 3.
- FIG. 6 is a perspective view illustrating the discharge cover of FIG. 3.
- FIG. 7 is a cross-sectional view illustrating the structure of the compression unit of FIG. 1.
- FIG. 8 is an enlarged partial view of region S of FIG. 7.
- FIGS. 9 and 10 are cross-sectional views illustrating a scroll compressor according to another embodiment of the present invention.
- FIG. 1 is a cross-sectional view illustrating a scroll compressor according to an embodiment of the present invention.
- a scroll compressor 1 according to an exemplary embodiment of the present invention is disposed in a casing 210 having an inner space, a drive motor 220 provided at an upper portion of an inner space, and a lower portion of the drive motor 220.
- Compression unit 200, the rotating shaft 226 for transmitting the driving force of the drive motor 220 to the compression unit 200 may be included.
- the inner space of the casing 210 is the first space (V1) of the upper side of the drive motor 220, the second space (V2) between the drive motor 220 and the compression unit 200, the discharge cover ( It may be divided into a third space (V3) partitioned by the 330 and the oil storage space (V4) that is lower than the compression unit 200.
- Casing 210 may be, for example, cylindrical in shape, and thus casing 210 may include cylindrical shell 211.
- an upper shell 212 may be installed at an upper portion of the cylindrical shell 211, and a lower shell 214 may be installed at a lower portion of the cylindrical shell 211.
- the upper and lower shells 212 and 214 may be coupled to the cylindrical shell 211 by welding to form an inner space, for example.
- the coolant discharge tube 216 may be installed in the upper shell 212, and the coolant discharge tube 216 is discharged from the compression unit 200 into the second space V2 and the first space V1. It is a passage through which the compressed refrigerant is discharged to the outside.
- an oil separator (not shown) for separating oil mixed in the discharged refrigerant may be connected to the refrigerant discharge pipe 216.
- the lower shell 214 may form a low oil space V4 through which oil can be stored.
- the oil storage space V4 may function as an oil chamber for supplying oil to the compression unit 200 so that the compressor can be smoothly operated.
- a side surface of the cylindrical shell 211 may be provided with a refrigerant suction pipe 218 which is a passage through which the refrigerant to be compressed is introduced.
- the refrigerant suction pipe 218 may be installed to penetrate the compression chamber S1 along the side of the fixed scroll 250.
- the driving motor 220 may be installed at an upper portion of the casing 210.
- the drive motor 220 may include a stator 222 and a rotor 224.
- Stator 222 may be cylindrical, for example, and may be secured to casing 210.
- the stator 222 has a plurality of slots (not shown) formed on the inner circumferential surface thereof so that the coil 222a is wound.
- a coolant flow path groove 212a may be formed on an outer circumferential surface of the stator 222 so as to pass through the coolant or oil discharged from the compression unit 200 by being cut in a D-cut shape.
- the rotor 224 may be coupled to the inside of the stator 222 and generate rotational power. In addition, by rotating the rotary shaft 226 in the center of the rotor 224, the rotary shaft 226 together with the rotor 224 can be rotated. The rotational power generated by the rotor 224 is transmitted to the compression unit 200 through the rotation shaft 226.
- the compression unit 200 may include an old dam ring 150, a main frame 230, a fixed scroll 250, a swing scroll 240, and a discharge cover 330.
- the old dam ring 150 may be installed between the main frame 230 and the swing scroll 240.
- the old dam ring 150 may be keyed to the main frame 230 and the pivoting scroll 240, respectively, to prevent rotation of the pivoting scroll 240.
- the main frame 230 may be provided below the driving motor 220 and may form an upper portion of the compression unit 200.
- the main frame 230 includes a frame hard plate portion (hereinafter, referred to as a first hard plate portion) 232 having a substantially circular shape, and a frame bearing portion (232, through which the rotating shaft 226 penetrates) in the center of the first hard plate portion 232.
- the first bearing part 232a and the frame side wall part (hereinafter, the first side wall part) 231 protruding downward from the outer circumferential part of the first hard plate part 232 may be provided.
- the first sidewall portion 231 may have an outer circumferential portion in contact with an inner circumferential surface of the cylindrical shell 211, and a lower end portion may contact the upper end portion of the fixed scroll sidewall portion 255 which will be described later.
- the first sidewall portion 231 may be provided with a frame discharge hole (hereinafter referred to as a first discharge hole) 231a that penetrates the inside of the first sidewall portion 231 in the axial direction to form a refrigerant passage.
- the first discharge hole 231a may be connected to the outlet of the fixed scroll discharge hole 256b, which will be described later, and the outlet may be connected to the second space V2.
- the first bearing part 232a may protrude from the upper surface of the first hard plate part 232 toward the driving motor 220.
- the first bearing portion 232a may be formed with a first bearing portion such that the main bearing portion 226c of the rotating shaft 226 which will be described later is penetrated.
- the first bearing portion 232a which is rotatably inserted and supported by the main bearing portion 226c of the rotating shaft 226 constituting the first bearing portion, may be formed in the axial direction. .
- An oil pocket 232b may be formed on an upper surface of the first hard plate part 232 to collect oil discharged between the first bearing portion 232a and the rotation shaft 226.
- the oil pocket 232b may be intaglio formed on the upper surface of the first hard plate portion 232, and may be formed in an annular shape along the outer circumferential surface of the first bearing portion 232a.
- the back pressure chamber S2 may be formed at the bottom of the main frame 230 to form a space together with the fixed scroll 250 and the swing scroll 240 to support the swing scroll 240 by the pressure of the space.
- the back pressure chamber S2 may be an intermediate pressure region (ie, an intermediate pressure chamber), and the oil supply passage 226a provided in the rotation shaft 226 may be in a high pressure state in which pressure is higher than that of the back pressure chamber S2.
- the space surrounded by the rotation shaft 226, the main frame 230, and the swing scroll 240 may be a high pressure region S3.
- a back pressure seal 280 may be provided between the main frame 230 and the swing scroll 240 to distinguish the high pressure region S3 and the middle pressure region S2.
- the back pressure seal 280 may serve as a sealing member, for example.
- the main frame 230 may be combined with the fixed scroll 250 to form a space in which the pivoting scroll 240 may be installed to be pivotable. That is, such a structure may be a structure surrounding the rotating shaft 226 so that the rotating power can be transmitted to the compression unit 200 through the rotating shaft 226.
- the fixed scroll 250 forming the first scroll may be coupled to the bottom of the main frame 230.
- the fixed scroll 250 may be provided under the main frame 230.
- the fixed scroll 250 is a fixed scroll side plate portion (hereinafter referred to as a second hard plate portion) 254 having a substantially circular shape, a fixed scroll side wall portion (hereinafter referred to as a second projecting upward from the outer peripheral portion of the second hard plate portion 254) Fixed wrap that protrudes from the upper surface of the side wall portion 255 and the second hard plate portion 254 and engages (ie, engages with) the turning wrap 241 of the turning scroll 240 to be described later to form the compression chamber S1. 251 and a fixed scroll bearing portion (hereinafter referred to as a second bearing portion) 252 formed in the center of the rear surface of the second hard plate portion 254 and through which the rotating shaft 226 penetrates.
- a fixed scroll bearing portion hereinafter referred to as a second bearing portion
- a discharge port 253 may be formed in the second hard plate part 254 to guide the compressed refrigerant from the compression chamber S1 to the internal space of the discharge cover 330.
- the position of the discharge port 253 may be arbitrarily set in consideration of the required discharge pressure.
- Discharge cover 330 for guiding to it may be combined.
- the discharge cover 330 may be sealingly coupled to the bottom surface of the fixed scroll 250 to separate the discharge flow path of the refrigerant and the oil storage space V4.
- a stopper seat 320 having a discharge valve 317 for opening and closing the discharge port 253 between the fixed scroll 250 and the discharge cover 330, and a valve stopper 327 for limiting the movable range of the discharge valve 317. ) Is provided with a stopper sheet 320.
- valve seat 310, the stopper seat 320, and the discharge cover 330 are fastened together by being fixed to one surface of the fixed scroll 250 by the fixing member 340.
- the simultaneous fastening structure of the valve seat 310, the stopper seat 320 and the discharge cover 330 will be described later.
- the discharge cover 330 is coupled to the sub bearing part 226g of the rotating shaft 226 forming the second bearing part so that the oil feeder 271 immersed in the oil storage space V4 of the casing 210 passes through the through hole 332a. ) May be formed.
- the second side wall portion 255 may have an outer circumference portion contacting the inner circumferential surface of the cylindrical shell 211, and an upper end portion may contact the lower end portion of the first side wall portion 231.
- the second side wall portion 255 also penetrates the inside of the second side wall portion 255 in the axial direction to form a refrigerant passage together with the first discharge hole 231a (hereinafter, referred to as a second discharge hole). ) 256b may be provided.
- the second discharge hole 256b may be formed to correspond to the first discharge hole 231a, the inlet may be connected to the inner space of the discharge cover 330, and the outlet may be connected to the inlet of the first discharge hole 231a.
- the second discharge hole 256b and the first discharge hole 231a may be configured to guide the refrigerant discharged from the compression chamber S1 into the internal space of the discharge cover 330 to the second space V2.
- the space V3 and the second space V2 may be connected.
- the second side wall part 255 may be installed such that the refrigerant suction pipe 218 is connected to the suction side of the compression chamber S1.
- the refrigerant suction pipe 218 may be installed to be spaced apart from the second discharge hole 256b.
- the second bearing part 252 may protrude from the lower surface of the second hard plate part 254 toward the storage space V4.
- the second bearing portion 252 may be provided with a second bearing portion so that the sub-bearing portion 226g of the rotating shaft 226 is inserted and supported.
- the second bearing portion 252 may be bent toward the center of the shaft such that the lower end portion supports the lower end of the sub bearing portion 226g of the rotation shaft 226 to form a thrust bearing surface.
- a pivoting scroll 240 may be installed between the main frame 230 and the fixed scroll 250 to form a second scroll.
- the swinging scroll 240 may be coupled to the rotating shaft 226 to form two pairs of compression chambers S1 between the fixed scroll 250 and the pivoting movement.
- the pivoting scroll 240 is a pivoting scroll swivel plate part (hereinafter referred to as a third hard plate part) 245 having a substantially circular shape, and a swivel wrap that protrudes from the lower surface of the third hard plate part 245 and engages with the fixed wrap 251 ( 241 and a rotation shaft coupling portion 242 which is provided at the center of the third hard plate portion 245 and rotatably coupled to the eccentric portion 226f to be described later of the rotation shaft 226.
- a third hard plate part having a substantially circular shape
- a swivel wrap that protrudes from the lower surface of the third hard plate part 245 and engages with the fixed wrap 251 ( 241 and a rotation shaft coupling portion 242 which is provided at the center of the third hard plate portion 245 and rotatably coupled to the eccentric portion 226f to be described later of the rotation shaft 226.
- the outer circumferential portion of the third hard plate portion 245 is positioned at the upper end of the second side wall portion 255, and the lower end of the swing wrap 241 is in close contact with the upper surface of the second hard plate portion 254. It may be supported by the fixed scroll 250.
- the outer circumferential portion of the rotating shaft coupling portion 242 is connected to the turning wrap 241 to form a compression chamber S1 together with the fixed wrap 251 in the compression process.
- the fixed wrap 251 and the swing wrap 241 may be formed in an involute shape, but may be formed in various other shapes.
- the involute shape means a curve that corresponds to the trajectory that the end of the yarn draws when unwinding the yarn wound around the base circle with an arbitrary radius.
- eccentric portion 226f of the rotation shaft 226 may be inserted into the rotation shaft coupling portion 242.
- the eccentric portion 226f inserted into the rotation shaft coupling portion 242 may overlap the turning wrap 241 or the fixed wrap 251 in the radial direction of the compressor.
- the radial direction may mean a direction orthogonal to the axial direction (ie, up and down direction) (ie, the left and right direction), and more specifically, the radial direction may mean a direction from the outside of the rotation axis toward the inside. .
- the repulsive force and the compressive force of the refrigerant are hard plate portions. Based on the reference numeral 245 may be applied to the same plane and partially offset each other.
- the rotary shaft 226 is coupled to the driving motor 220 and may include an oil supply passage 226a for guiding oil contained in the oil storage space V4 of the casing 210 to the top.
- the rotating shaft 226 may be coupled to the upper portion of the rotor 224 is pressed in the center, the lower portion is coupled to the compression unit 200 can be supported radially.
- the rotation shaft 226 may transmit the rotational force of the driving motor 220 to the swing scroll 240 of the compression unit 200.
- the pivoting scroll 240 eccentrically coupled to the rotating shaft 226 through the pivoting movement with respect to the fixed scroll (250).
- the main bearing part 226c may be formed below the rotating shaft 226 so as to be inserted into the first bearing part 232a of the main frame 230 and supported in the radial direction.
- a sub bearing part 226g may be formed below the main bearing part 226c to be inserted into the second bearing part 252 of the fixed scroll 250 to be radially supported.
- an eccentric portion 226f may be formed between the main bearing portion 226c and the sub bearing portion 226g to be inserted into and coupled to the rotation shaft coupling portion 242 of the swing scroll 240.
- the main bearing portion 226c and the sub bearing portion 226g may be formed coaxially to have the same axis center.
- the eccentric portion 226f may be formed to be radially eccentric with respect to the main bearing portion 226c or the sub bearing portion 226g.
- the eccentric portion 226f may have an outer diameter smaller than the outer diameter of the main bearing portion 226c and larger than the outer diameter of the sub bearing portion 226g. In this case, it may be advantageous to couple the rotating shaft 226 through each of the bearing parts 232a and 252 and the rotating shaft coupling part 242.
- the eccentric portion 226f may not be integrally formed on the rotation shaft 226 but may be formed using a separate bearing.
- the rotary shaft 226 is inserted into and coupled to the respective bearing portions 232a and 252 and the rotary shaft coupling portion 242 without the outer diameter of the sub bearing portion 226g being smaller than the outer diameter of the eccentric portion 226f. Can be.
- an oil supply passage 226a may be formed in the rotation shaft 226 to supply oil in the oil storage space V4 to the outer circumferential surface of each bearing portion 226c and 226g and the outer circumferential surface of the eccentric portion 226f.
- oil holes 228b, 228d, and 228e penetrating to the outer circumferential surface of the oil supply passage 226a may be formed in the bearing portion and the eccentric portions 226c, 226g, and 226f of the rotation shaft 226.
- the oil guided upward through the oil supply passage 226a may be discharged through the oil holes 228b, 228d, and 228e and supplied to the bearing surface.
- An oil feeder 271 for pumping oil filled in the oil storage space V4 may be coupled to a lower end of the rotation shaft 226, that is, a lower end of the sub bearing part 226g.
- the oil feeder 271 is an oil supply pipe 273 inserted into and coupled to the oil supply flow path 226a of the rotation shaft 226, and an oil suction member 274 inserted into the oil supply pipe 273 to suck oil. Can be done.
- the oil supply pipe 273 may be installed to pass through the through hole 332a of the discharge cover 330 to be immersed in the oil storage space V4, and the oil suction member 274 may function as a propeller.
- a trochoid pump (not shown) may be coupled to the sub-bearing portion 226g to forcibly pump oil filled in the oil storage space V4 to the top instead of the oil feeder 271. have.
- the scroll compressor according to the embodiment of the present invention includes a first sealing member (not shown) for sealing a gap between the upper end of the main bearing portion 226c and the upper end of the main frame 230;
- a second sealing member may be further included to seal a gap between the lower end of the sub bearing part 226g and the lower end of the fixed scroll 250.
- a balance weight 227 for suppressing noise and vibration may be coupled to the rotor 224 or the rotating shaft 226.
- the balance weight 227 may be provided between the driving motor 220 and the compression unit 200, that is, in the second space V2.
- the operation process of the scroll compressor 1 according to the embodiment of the present invention is as follows.
- Compression chamber (S1) may be formed in a number of steps in succession, gradually narrowing in the center direction.
- the refrigerant supplied through the refrigerant suction pipe 218 from the casing 210 may directly flow into the compression chamber S1.
- the refrigerant is compressed while moving in the direction of the discharge chamber of the compression chamber S1 by the swinging movement of the swing scroll 240, and then from the discharge chamber to the third space V3 through the discharge port 253 of the fixed scroll 250. Can be discharged.
- the compressed refrigerant discharged into the third space V3 is discharged into the internal space of the casing 210 through the second discharge hole 256b and the first discharge hole 231a, and then the refrigerant discharge pipe 216.
- the refrigerant discharge pipe 216 Through a series of processes to be discharged to the outside of the casing 210 is repeated.
- valve seat 310 the stopper seat 320, and the discharge cover 330 coupled to the fixed scroll 250 of FIG. 1 will be described with reference to FIGS. 2 to 10.
- FIG. 2 is a partial perspective view showing components coupled onto the fixed scroll of FIG. 1.
- 3 is an exploded perspective view of the components coupled onto the fixed scroll of FIG. 1;
- 4 is a plan view illustrating the valve seat of FIG. 3.
- FIG. 5 is a plan view illustrating the stopper sheet of FIG. 3.
- FIG. 6 is a perspective view illustrating the discharge cover of FIG. 3.
- FIG. 2 is a view showing the discharge cover 330 transparent to display the upper surface of the valve seat 310 and the stopper seat 320.
- the fixed scroll 250 of the scroll compressor 1 has a valve seat 310, a stopper seat 320, and a discharge cover 330 on one surface thereof. Are arranged sequentially.
- valve seat 310 is in contact with one surface of the fixed scroll 250, and is formed in a plate shape of a constant thickness.
- the valve seat 310 may be formed of a metal or nonmetal material having a certain elasticity.
- a first through hole 312 that is engageable with the second bearing portion 252 of the fixed scroll 250 is formed.
- first fastening hole 314 through which the fixing member 340 is coupled, and a first through hole 316b communicating with the second discharge hole 256b to move the refrigerant.
- first through hole 316b may be formed in the same size and shape as the second discharge hole 256b, but this is merely an example and the present invention is not limited thereto.
- a discharge valve 317 is formed to open and close the discharge port 253 of the fixed scroll 250.
- the valve seat 310 may have the same number of discharge valves 317 as the discharge holes 253 formed on the fixed scroll 250.
- the number of discharge ports 253 of the fixed scroll 250 and the number of discharge valves 317 provided in the valve seat 310 may be the same.
- the shape of the discharge valve 317 is defined by the valve etch groove 318. That is, the shape of the discharge valve 317 is determined by the valve etching groove 318 formed in the valve seat 310. At this time, the discharge valve 317 is formed so that one side is connected to the valve seat 310 and the other side is bent from the valve seat 310 by elasticity.
- valve etching grooves 318 are formed at regular intervals along the outer circumferential surface of the discharge valve 317.
- the present invention is not limited thereto, and the thickness of the valve etching groove 318 may be different for each position, as shown in the drawing.
- the discharge valve 317 is composed of a valve head portion 317a which is formed in a substantially circular shape so as to overlap the discharge port 253 of the fixed scroll 250, and a valve body portion 317b that extends to the same thickness. At this time, the diameter of the valve head portion 317a may be larger than the width of the valve body portion 317b.
- the shape and size of the valve head portion 317a and the valve body portion 317b may be variously modified and implemented.
- the stopper seat 320 is in contact with one surface of the valve seat 310 and is formed in a plate shape having a constant thickness.
- the stopper sheet 320 is formed thicker than the thickness of the stopper sheet 320.
- the valve stopper 327 may be formed of a metal or non-metal material that is formed to a thickness of a predetermined size or more and is not easily changed in shape.
- the stopper seat 320 may be formed of a material that is stronger than the valve seat 310.
- a second through hole 322 that is engageable with the second bearing portion 252 of the fixed scroll 250 is formed at the center of the stopper sheet 320.
- the second through hole 322 may be formed in the same size and shape as the first through hole 312 described above.
- the refrigerant communicates with the at least one second fastening hole 324 through which the fixing member 340 is coupled, the second discharge hole 256b, and the first through hole 316b.
- the second through hole 326b is formed.
- the second through hole 326b may be formed in the same size and shape as the second discharge hole 256b and the first through hole 316b, but this is only one example and the present invention is limited thereto. It is not.
- a valve stopper 327 is formed inside the stopper seat 320 to limit the movable range of the discharge valve 317.
- the valve stopper 327 is located above the discharge valve 317 so as to overlap with the discharge valve 317.
- the valve stopper 327 is formed to be bent outwardly away from the discharge valve 317 toward the end. That is, the valve stopper 327 protrudes from the upper surface of the stopper seat 320 and is formed to be farther from the upper surface of the stopper seat 320 toward the end.
- the discharge valve 317 since the discharge valve 317 is formed to be thinner than the valve stopper 327, the discharge valve 317 may be bent outward by a refrigerant having a predetermined pressure or higher to open the discharge port 253. However, when the discharge valve 317 is bent over a predetermined range, the discharge valve 317 may lose elasticity and may not return to its original position.
- the valve stopper 327 is disposed above the discharge valve 317 to perform a function of guiding the discharge valve 317 so as not to bend over a predetermined range. That is, the discharge valve 317 guides the valve stopper 327 to bend only to the portion which is bent outward. In other words, the valve stopper 327 performs a function of controlling the maximum opening amount of the discharge valve 317.
- the stopper seat 320 includes the same number of valve stoppers 327 as the discharge valve 317 formed on the valve seat 310. Therefore, the number of discharge ports 253 of the fixed scroll 250 and the number of valve stoppers 327 provided in the stopper seat 320 may be the same.
- the valve stopper 327 has a shape defined by the stopper etch groove 328.
- the shape of the valve stopper 327 is determined by the stopper etch groove 328 formed in the stopper seat 320.
- the valve stopper 327 is formed such that one side is connected to the stopper seat 320 and the other side protrudes from the stopper seat 320 to bend outward.
- the stopper etching groove 328 is formed along the outer circumferential surface of the valve stopper 327.
- the valve stopper 327 is composed of a stopper head portion 327a that is formed in a substantially circular shape so as to overlap the discharge valve 317 of the valve seat 310, and a stopper body portion 327b that extends and is formed to have the same thickness.
- the diameter of the stopper head portion 327a may be larger than the width of the stopper body portion 327b.
- stopper head portion 327a and the stopper body portion 327b have shapes and sizes similar to those of the valve head portion 317a and the valve body portion 317b, and may be variously modified.
- the thickness of the stopper etching groove 328 may be formed differently for each position.
- the stopper etching groove 328 may include a first etching portion 328a defining the stopper head portion 327a and a second etching portion 328b defining the stopper body portion 327b.
- an interval of the first etching portion 328a may be greater than an interval of the second etching portion 328b.
- this is merely an example and the present invention is not limited thereto.
- the discharge cover 330 is in contact with one surface of the stopper sheet 320 and forms a discharge chamber (that is, the third space V3 described above) inside.
- the discharge cover 330 is a discharge cover hard plate portion (hereinafter, the third hard plate portion) 335 having a substantially circular shape, and a discharge cover side wall portion (hereinafter, third) that protrudes to one side from the outer circumferential portion of the third hard plate portion 335.
- Side wall portion 333 and a fixing portion 331 protruding outward from an end of the third side wall portion 333.
- the through hole 332a is formed in the center of the third hard plate part 335 to allow the oil feeder 271 to be immersed in the oil storage space V4 to pass therethrough.
- a discharge cover bearing part (hereinafter referred to as a third bearing part) 332 coupled to the second bearing part 252 of the fixed scroll 250 is formed below the third hard plate part 335.
- the third bearing portion 332 may be formed along the outer circumferential surface of the through hole 332a.
- the third side wall portion 333 has a height determined according to the size of the discharge chamber and is spaced apart from the inner circumferential surface of the cylindrical shell 211. An end portion of the third sidewall portion 333 is provided on the fixed scroll 250 to contact the upper surface of the stopper sheet 320.
- the fixing part 331 protrudes outward from an end of the third side wall part 333 and is formed to have a diameter larger than that of the third side wall part 333.
- the fixing part 331 includes at least one third fastening hole 334 through which the fixing member 340 is coupled.
- the third fastening hole 334 may be formed at a position corresponding to the coupling hole 254a of the fixed scroll 250.
- the fixing part 331 includes a flow path groove 331a which is formed to be concave inward to form an oil flow path.
- the position and shape of the third fastening hole 334 and the flow path groove 331a may be formed to correspond to the shape of the coupling hole 254a and the flow path groove formed on the sidewall of the fixed scroll 250.
- the third bearing portion 332 is coupled to the second bearing portion 252 of the fixed scroll 250 such that the refrigerant does not leak between the fixed scroll 250 or the oil feeder 271 inside the discharge cover 330. do.
- the third bearing portion 332 may be modified in various forms different from those shown in the drawings.
- the third bearing portion 332 may be formed to be in contact with only the sidewall of the oil feeder 271 and spaced apart from the upper surface of the second bearing portion 252.
- the third bearing portion 332 may be omitted, the present invention is not limited thereto.
- the fixing member 340 fastens and fixes the valve seat 310, the stopper seat 320, and the discharge cover 330 sequentially stacked on one surface of the fixed scroll 250.
- a coupling hole (254a of FIG. 7) that can be coupled to the fixed member 340 is formed.
- the discharge valve 317 includes a first fastening hole 314 formed at a position corresponding to the coupling hole 254a of the fixed scroll 250.
- the stopper seat 320 includes a second fastening hole 324 formed at a position corresponding to the first fastening hole 314 of the discharge valve 317.
- the discharge cover 330 includes a third fastening hole 334 formed at a position corresponding to the second fastening hole 324 of the stopper sheet 320.
- the fixing member 340 is coupled to the coupling hole 254a of the fixed scroll 250 by passing through the first to third fastening holes 314, 324, and 334.
- a screw thread may be formed at an end of the fixing member 340, and a screw groove corresponding to the screw thread may be formed inside the coupling hole 254a.
- this coupling method is only one example, and the fixing member 340 may be fixed on the fixed scroll 250 using various coupling methods.
- the fixing member 340 may firmly fix the valve seat 310, the stopper seat 320, and the discharge cover 330 sequentially stacked on one surface of the fixed scroll 250.
- a plurality of first to third fastening holes 314, 324, and 334 are provided on the valve seat 310, the stopper seat 320, or the discharge cover 330, respectively, and the plurality of fixing members 340. It can be fixed on the fixed scroll 250 by.
- the adhesive layer or the valve seat 310, the stopper seat 320 and the stopper seat 320, or between the stopper seat 320 and the discharge cover 330 or A sealing layer can be formed.
- the adhesive layer or the sealing layer may be formed by an adhesive material or a sealing material applied in the circumferential direction on the fixed scroll 250.
- the adhesive layer and the sealing layer may prevent the refrigerant discharged into the lower discharge chamber (that is, the third space V3) formed inside the discharge cover 330 from leaking out of the discharge cover 330.
- the fixing member 340 may be omitted.
- the valve seat 310, the stopper seat 320, and the discharge cover 330 may be fixed on the fixed scroll 250 by various fastening methods (for example, insert and lock structure).
- the valve seat 310 includes a plurality of discharge valves 317 corresponding to the plurality of discharge ports 253 formed on the fixed scroll 250, and the stopper seat 320. Has a plurality of valve stoppers 327 corresponding to the plurality of discharge valves 317.
- the discharge cover 330 is disposed on the valve seat 310 and the stopper seat 320 to form a lower discharge chamber
- the fixing member 340 is the valve seat 310
- the stopper seat 320 and the discharge cover 330 is firmly fixed on the fixed scroll 250.
- valve seat 310, the stopper seat 320, and the discharge cover 330 are simultaneously fastened on one surface of the fixed scroll 250 by the fixing member 340.
- the fixing member 340 Has a structure.
- the present invention can omit the step of separately assembling the discharge valve 317 and the valve stopper 327 for each discharge port 253 of the fixed scroll 250.
- the fastening structure can be simplified to reduce the number of processing steps required for the manufacture of the scroll compressor 1.
- the common fastening structure of the present invention can reduce the labor required for the production of the product, manufacturing time and cost required for the production of the product.
- FIG. 7 is a cross-sectional view illustrating the structure of the compression unit of FIG. 1.
- FIG. 8 is an enlarged partial view of region S of FIG. 7.
- the discharge port 253 provided in the fixed scroll 250 communicates with the compression chamber S1.
- the discharge valve 317 is disposed to overlap the discharge port 253 to open and close the discharge port 253.
- the valve stopper 327 is disposed above the discharge valve 317 to limit the movable range of the discharge valve 317.
- the upper surface of the second hard plate portion 254 of the fixed scroll 250 is formed flat to be in close contact with the valve seat 310. Accordingly, the upper surface of the second hard plate portion 254 and one surface of the valve seat 310 are disposed on the same plane.
- the top surface of the fixed scroll 250 may be provided with a stepped groove structure for reducing the static friction by oil. Detailed description thereof will be described later.
- one surface of the stopper seat 320 is disposed to be in contact with the other surface facing one surface of the valve seat 310. Therefore, one surface of the stopper seat 320 is disposed on the same plane as the other surface of the valve seat 310.
- the fixing part 331 of the discharge cover 330 is disposed to contact the other surface facing one surface of the stopper sheet 320. Therefore, the lower surface of the fixing part 331 of the discharge cover 330 and the other surface of the stopper sheet 320 are disposed on the same plane.
- the fixing member 340 fixes the valve seat 310, the stopper seat 320, and the discharge cover 330 sequentially stacked on one surface of the fixed scroll 250.
- the discharge valve 317 includes a first fastening hole 314 formed at a position corresponding to the coupling hole 254a of the fixed scroll 250.
- the stopper seat 320 includes a second fastening hole 324 formed at a position corresponding to the first fastening hole 314 of the discharge valve 317.
- the discharge cover 330 includes a third fastening hole 334 formed at a position corresponding to the second fastening hole 324 of the stopper sheet 320.
- the fixing member 340 is coupled to the coupling hole 254a of the fixed scroll 250 by passing through the first to third fastening holes 314, 324, and 334. Through this, the valve seat 310, the stopper seat 320, and the discharge cover 330 are simultaneously fastened and fixed on one surface of the fixed scroll 250 by the fixing member 340.
- the coupling structure between the fixed scroll 250, the valve seat 310, the stopper seat 320, and the discharge cover 330 may be simplified. Accordingly, the coupling force between the fixed scroll 250, the valve seat 310, the stopper seat 320 and the discharge cover 330 may be stronger than the conventional scroll compressor.
- the amount of refrigerant leaking between the fixed scroll 250 and the discharge cover 330 may be reduced, and as the amount of refrigerant leakage is reduced, the operation efficiency and operation stability of the scroll compressor may be improved.
- FIGS. 9 and 10 are cross-sectional views illustrating a scroll compressor according to another embodiment of the present invention.
- the descriptions common to the above descriptions will be omitted and the differences will be described.
- the second hard plate portion 254 of the fixed scroll 250 may have a stepped groove 254h etched inwardly on an upper surface thereof. It is provided.
- the second hard plate portion 254 includes a round portion 254R which protrudes from the step groove 254h along the outer circumferential surface of the discharge port 253.
- the stepped groove 254h may be formed only on an area overlapping the discharge valve 317. However, the position or size of the stepped groove 254h may be variously modified.
- one end of the discharge valve 317 is fixed on the valve seat 310 by the fixing member 340, the other end is located on the round portion 254R to form a free end to open and close the discharge port 253. .
- the lower surface of one end of the discharge valve 317 may contact the upper surface of the second hard plate portion 254.
- the lower surface of the other end of the discharge valve 317 may be in contact with the uppermost surface (or the uppermost contact point) of the round portion 254R.
- the center portion of the discharge valve 317 may be formed to be spaced apart from the second hard plate portion 254 by the stepped groove 254h.
- the contact area of the discharge valve 317 and the round part 254R is related to the static frictional force by oil.
- the valve stopper 327 may be disposed on the discharge valve 317.
- valve stopper 327 may be fixed to the stopper seat 320, and the other end may be formed to be bent outwardly away from the discharge hole 253.
- One side of the bottom surface of the valve stopper 327 may be in contact with the top surface of the discharge valve 317, and the other side thereof may be spaced apart from the discharge valve 317.
- valve stopper 327 functions to limit the angle at which the discharge valve 317 is bent so that the discharge valve 317 is not bent above a predetermined angle.
- the discharge valve 317 receives the force F in the upward direction of the round part 254R, so that it is close to the valve stopper 327. Can be bent to lose.
- the refrigerant compressed in the compression chamber connected to the discharge port 253 is discharged into the space between the discharge valve 317 and the discharge port 253 to move into the discharge cover 330.
- the scroll compressor 2 can implement accurate operation of the discharge valve 317 by reducing the static friction caused by oil generated between the discharge valve 317 and the discharge port 253. Do.
- the present invention can reduce the loss due to overcompression during the operation of the compressor, thereby improving the operation efficiency of the compressor and improving the operation stability of the scroll compressor 2.
- valve seat 310 may be integrally formed and coupled to the fixed scroll 250.
- this is merely an example and the present invention is not limited thereto.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Rotary Pumps (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
The present invention relates to a compressor having a structure for simultaneously fastening a discharge valve, a valve stopper, and a discharge cover. A scroll compressor according to the present invention comprises: a valve seat having multiple discharge valves; a stopper seat having multiple valve stoppers; and a fixing member for fixing a discharge cover disposed on the stopper seat to one surface of a fixed scroll. Therefore, the present invention can simplify a fastening structure of the discharge valves and the discharge cover, and can reduce the number of manufacturing processes and thus can reduce manufacturing cost.
Description
본 발명은 밸브 시트, 스토퍼 시트 및 토출커버의 동시 체결 구조를 포함하는 압축기에 관한 것이다.The present invention relates to a compressor including a simultaneous fastening structure of the valve seat, the stopper seat and the discharge cover.
일반적으로 압축기는 냉장고나 에어콘과 같은 증기압축식 냉동사이클(이하, 냉동사이클로 약칭함)에 적용되고 있다.In general, a compressor is applied to a vapor compression refrigeration cycle (hereinafter, referred to as a refrigeration cycle) such as a refrigerator or an air conditioner.
압축기는 냉매를 압축하는 방식에 따라 왕복동식, 로터리식, 스크롤식 등으로 구분될 수 있다.The compressor may be classified into a reciprocating type, a rotary type, and a scroll type according to a method of compressing a refrigerant.
이 중 스크롤 압축기는 밀폐용기의 내부공간에 고정된 고정 스크롤에 선회 스크롤이 맞물려 선회운동을 함으로써 고정 스크롤의 고정랩과 선회 스크롤의 선회랩 사이에 압축실이 형성되는 압축기이다. Among these, the scroll compressor is a compressor in which a compression chamber is formed between the fixed wrap of the fixed scroll and the swing wrap of the swing scroll by pivoting the swing scroll to a fixed scroll fixed to the inner space of the sealed container.
스크롤 압축기는 다른 종류의 압축기에 비하여 상대적으로 높은 압축비를 얻을 수 있고, 냉매의 흡입, 압축, 토출 행정이 부드럽게 이어져 안정적인 토크를 얻을 수 있는 장점 때문에 공조장치 등에서 냉매압축용으로 널리 사용되고 있다.Scroll compressors have a relatively high compression ratio compared to other types of compressors, and the suction, compression, and discharge strokes of the refrigerant are smoothly used, and thus are widely used for refrigerant compression in an air conditioner.
이러한 스크롤 압축기는 구동 모터와 압축부의 위치에 따라 상부 압축식 또는 하부 압축식으로 구분될 수 있다. 상부 압축식은 압축부가 구동 모터보다 상측에 위치하는 방식이고, 하부 압축식은 압축부가 구동 모터보다 하측에 위치하는 방식이다.Such scroll compressors may be classified into upper compression type or lower compression type according to the position of the drive motor and the compression part. The upper compression type is a method in which the compression part is located above the drive motor, and the lower compression type is a method in which the compression part is located below the drive motor.
여기에서 압축부는 케이싱의 내부 공간에 고정되는 메인 프레임, 메인 프레임의 일측에 결합되는 고정 스크롤, 및 메인 프레임과 고정 스크롤 사이에서 선회 운동을 하며 고정 스크롤과 압축실을 형성하는 선회 스크롤을 포함한다. 이때, 고정 스크롤에는 압축실에서 압축된 냉매가 토출되는 복수 개의 토출구가 구비된다.Here, the compression unit includes a main frame fixed to the inner space of the casing, a fixed scroll coupled to one side of the main frame, and a pivoting scroll which pivots between the main frame and the fixed scroll and forms the fixed scroll and the compression chamber. At this time, the fixed scroll is provided with a plurality of discharge ports through which the refrigerant compressed in the compression chamber is discharged.
종래의 스크롤 압축기는 각각의 토출구 마다 토출 밸브와, 토출 밸브의 가동 범위를 제한하는 밸브 스토퍼를 개별 체결하여 조립하는 구조를 가진다. 이러한 토출 밸브의 개별 체결 구조는 스크롤 압축기의 제조 공정수를 증가시키고, 제조 원가를 상승시키는 원인이 되었다.The conventional scroll compressor has a structure in which a discharge valve and a valve stopper for limiting the movable range of the discharge valve are individually fastened and assembled for each discharge port. The individual fastening structure of the discharge valve increases the number of manufacturing steps of the scroll compressor and causes the manufacturing cost to rise.
또한, 하부 압축식 스크롤 압축기는 토출구에서 토출된 냉매를 가이드하기 위한 하부 토출 챔버를 형성하는 토출커버를 포함한다.The lower compression scroll compressor also includes a discharge cover that forms a lower discharge chamber for guiding the refrigerant discharged from the discharge port.
이때, 종래의 스크롤 압축기는 토출커버를 체결하기 위한 체결홀을 고정 스크롤 상에 별도로 형성함으로써, 토출커버를 체결하기 위한 공정을 추가로 수행해야 했다. In this case, in the conventional scroll compressor, a fastening hole for fastening the discharge cover is formed separately on the fixed scroll, so that a process for fastening the discharge cover has to be further performed.
즉, 종래의 스크롤 압축기는 복수의 토출 밸브, 밸브 스토퍼, 및 토출커버를 별개의 공정에서 조립하므로, 스크롤 압축기의 제조공정을 복잡하게 하고 제조 원가를 상승시키는 문제점이 있었다.In other words, the conventional scroll compressor assembles a plurality of discharge valves, valve stoppers, and discharge covers in separate processes, thereby complicating the manufacturing process of the scroll compressor and increasing the manufacturing cost.
한편, 토출구와 토출 밸브의 접촉면적이 넓어지는 경우, 오일에 의한 정지 마찰력(Oil stiction)은 증가된다. 이에 따라 종래의 스크롤 압축기는 토출 밸브에서 오일에 의한 정지 마찰력이 증가하는 경우, 스크롤 압축기의 동작 시 과압축에 의한 손실이 발생하는 문제점이 있었다.On the other hand, when the contact area of the discharge port and the discharge valve is widened, the static friction force (Oil stiction) by the oil is increased. Accordingly, the conventional scroll compressor has a problem that a loss due to overcompression occurs during operation of the scroll compressor when the static frictional force by the oil in the discharge valve increases.
본 발명의 목적은 토출 밸브, 밸브 스토퍼 및 토출커버를 동시에 체결함으로써, 체결 구조를 단순화시키고 제조 비용을 절감할 수 있는 스크롤 압축기를 제공하는 것이다.An object of the present invention is to provide a scroll compressor that can simplify the fastening structure and reduce the manufacturing cost by fastening the discharge valve, the valve stopper and the discharge cover at the same time.
또한, 본 발명의 목적은 고정 스크롤의 일면을 평탄화시키고, 해당 일면 상에 밸브 시트, 스토퍼 시트 및 토출커버를 일체로 고정시킴으로써, 냉매의 누설을 방지하고 신뢰성을 높일 수 있는 스크롤 압축기를 제공하는 것이다.In addition, an object of the present invention is to provide a scroll compressor that can flatten one surface of the fixed scroll and integrally fix the valve seat, the stopper seat and the discharge cover on the one surface, thereby preventing leakage of refrigerant and increasing reliability. .
또한, 본 발명의 목적은 토출 밸브와 토출구 사이에 발생하는 오일에 의한 정지 마찰력을 감소시킴으로써, 압축기 동작 시 과압축에 의한 손실을 저감시킬 수 있는 스크롤 압축기를 제공하는 것이다.In addition, an object of the present invention is to provide a scroll compressor that can reduce the loss due to overcompression during operation of the compressor by reducing the static frictional force caused by the oil generated between the discharge valve and the discharge port.
본 발명의 목적들은 이상에서 언급한 목적으로 제한되지 않으며, 언급되지 않은 본 발명의 다른 목적 및 장점들은 하기의 설명에 의해서 이해될 수 있고, 본 발명의 실시예에 의해 보다 분명하게 이해될 것이다. 또한, 본 발명의 목적 및 장점들은 특허 청구 범위에 나타낸 수단 및 그 조합에 의해 실현될 수 있음을 쉽게 알 수 있을 것이다.The objects of the present invention are not limited to the above-mentioned objects, and other objects and advantages of the present invention, which are not mentioned above, can be understood by the following description, and more clearly by the embodiments of the present invention. Also, it will be readily appreciated that the objects and advantages of the present invention may be realized by the means and combinations thereof indicated in the claims.
본 발명에 따른 스크롤 압축기는 복수의 토출 밸브가 구비된 밸브 시트와, 복수의 밸브 스토퍼가 구비된 스토퍼 시트와, 스토퍼 시트 상에 배치되는 토출커버를 고정 스크롤의 일면에 고정시키는 고정부재를 포함한다. 이를 통해, 본 발명은 토출 밸브와 토출커버의 체결 구조를 단순화시킬 수 있으며, 제조 공정을 감소시키고 제조 비용을 절감할 수 있다.The scroll compressor according to the present invention includes a valve seat having a plurality of discharge valves, a stopper seat having a plurality of valve stoppers, and a fixing member for fixing the discharge cover disposed on the stopper seat to one surface of the fixed scroll. . Through this, the present invention can simplify the fastening structure of the discharge valve and the discharge cover, it is possible to reduce the manufacturing process and reduce the manufacturing cost.
또한, 본 발명에 따른 스크롤 압축기는, 밸브 시트의 일면과 접하여 동일 평면 상에 배치되도록 일면이 가공된 고정 스크롤과, 고정 스크롤 상에 층층이 결합되는 밸브 시트, 스토퍼 시트 및 토출커버를 포함한다. 이를 통해, 본 발명은 고정 스크롤과 토출커버 사이에 발생되는 냉매의 누설량을 감소시키고, 압축기의 신뢰성을 향상시킬 수 있다.In addition, the scroll compressor according to the present invention includes a fixed scroll having one surface processed so as to be disposed on the same plane in contact with one surface of the valve seat, and a valve seat, a stopper seat, and a discharge cover to which a layer layer is coupled on the fixed scroll. Through this, the present invention can reduce the leakage amount of the refrigerant generated between the fixed scroll and the discharge cover, it is possible to improve the reliability of the compressor.
또한, 본 발명에 따른 스크롤 압축기는, 토출 밸브에 오버랩되는 영역에서 내측으로 단차를 갖도록 형성되는 단차홈과, 토출 밸브의 일측에 접하고 단차홈으로부터 돌출 형성되는 라운드부를 포함하는 고정 스크롤을 구비한다. 이를 통해, 본 발명은 토출 밸브와 토출구 사이에 발생하는 오일에 의한 정지 마찰력을 감소시킬 수 있다.In addition, the scroll compressor according to the present invention includes a stepped groove formed to have a step inwardly in an area overlapping the discharge valve, and a fixed scroll including a rounded portion which contacts one side of the discharge valve and protrudes from the stepped groove. Through this, the present invention can reduce the static frictional force caused by the oil generated between the discharge valve and the discharge port.
본 발명에 따른 스크롤 압축기는 토출 밸브, 밸브 스토퍼 및 토출커버를 동시에 체결함으로써, 고정 스크롤의 토출구 마다 토출 밸브와 밸브 스토퍼를 개별로 조립해야 하는 공정을 생략할 수 있다. 또한, 본 발명은 토출 밸브와 밸브 스토퍼를 토출커버와 함께 고정시킴으로써 토출커버를 고정시키기 위한 공정도 일원화할 수 있다. 즉, 본 발명은 토출 밸브, 밸브 스토퍼 및 토출커버를 동시에 체결함으로써, 체결 구조를 단순화시켜 스크롤 압축기의 제작에 필요한 처리 공정수를 감소시킬 수 있다. 이러한 동시 체결 구조는 제품 생산에 필요한 노동력, 제품 생산에 필요한 제조 시간 및 비용을 감소시킬 수 있어 제품 경쟁력을 향상시킬 수 있다.In the scroll compressor according to the present invention, the discharge valve, the valve stopper, and the discharge cover may be simultaneously locked, thereby eliminating the step of separately assembling the discharge valve and the valve stopper for each discharge port of the fixed scroll. Further, the present invention can also unify the process for fixing the discharge cover by fixing the discharge valve and the valve stopper together with the discharge cover. That is, according to the present invention, by simultaneously fastening the discharge valve, the valve stopper and the discharge cover, the fastening structure can be simplified to reduce the number of processing steps required for the manufacture of the scroll compressor. This simultaneous fastening structure can reduce the labor required to produce the product, the manufacturing time and cost required to produce the product, thereby improving product competitiveness.
또한, 본 발명에 따른 스크롤 압축기는 고정 스크롤, 밸브 시트, 스토퍼 시트 및 토출커버 사이의 결합 구조가 단순화됨에 따라 고정 스크롤과 토출커버 사이에 누설되는 냉매량을 감소시킬 수 있다. 냉매 누설량이 감소됨에 따라, 스크롤 압축기의 동작 효율과 동작 안정성이 향상될 수 있으며, 제품에 대한 신뢰성도 함께 향상될 수 있다. In addition, the scroll compressor according to the present invention can reduce the amount of refrigerant leaked between the fixed scroll and the discharge cover as the coupling structure between the fixed scroll, the valve seat, the stopper seat and the discharge cover is simplified. As the refrigerant leakage decreases, the operation efficiency and operational stability of the scroll compressor may be improved, and the reliability of the product may be improved.
또한, 본 발명에 따른 스크롤 압축기는 토출 밸브와 토출구 사이에 발생하는 오일에 의한 정지 마찰력을 감소시킴으로써 토출 밸브의 정확한 동작 구현이 가능하다. 이에 따라, 본 발명은 압축기 동작 시 과압축에 의한 손실을 저감시켜 압축기의 동작 효율을 향상시킬 수 있다. 또한, 본 발명은 스크롤 압축기의 동작 안정성을 향상시키고, 제품에 대한 신뢰성과 제품 인지도 및 판매량을 높일 수 있다.In addition, the scroll compressor according to the present invention can implement accurate operation of the discharge valve by reducing the static frictional force caused by the oil generated between the discharge valve and the discharge port. Accordingly, the present invention can reduce the loss due to overcompression during operation of the compressor to improve the operating efficiency of the compressor. In addition, the present invention can improve the operational stability of the scroll compressor, it is possible to increase the reliability and product recognition and sales volume for the product.
상술한 효과와 더불어 본 발명의 구체적인 효과는 이하 발명을 실시하기 위한 구체적인 사항을 설명하면서 함께 기술한다. In addition to the effects described above, the specific effects of the present invention will be described together with the following description of specifics for carrying out the invention.
도 1은 본 발명의 실시예에 따른 스크롤 압축기를 나타내는 단면도이다.1 is a cross-sectional view showing a scroll compressor according to an embodiment of the present invention.
도 2는 도 1의 고정 스크롤 상에 결합된 구성요소를 나타내는 부분 사시도이다.FIG. 2 is a partial perspective view showing components coupled onto the fixed scroll of FIG. 1.
도 3은 도 1의 고정 스크롤 상에 결합되는 구성요소의 분해 사시도이다.3 is an exploded perspective view of the components coupled onto the fixed scroll of FIG. 1;
도 4는 도 3의 밸브 시트를 나타내는 평면도이다.4 is a plan view illustrating the valve seat of FIG. 3.
도 5는 도 3의 스토퍼 시트를 나타내는 평면도이다.FIG. 5 is a plan view illustrating the stopper sheet of FIG. 3. FIG.
도 6은 도 3의 토출커버를 나타내는 사시도이다.6 is a perspective view illustrating the discharge cover of FIG. 3.
도 7은 도 1의 압축부의 구조를 설명하기 위한 단면도이다.7 is a cross-sectional view illustrating the structure of the compression unit of FIG. 1.
도 8은 도 7의 S 영역을 확대한 부분 확대도이다.FIG. 8 is an enlarged partial view of region S of FIG. 7.
도 9 및 도 10은 본 발명의 다른 실시예에 따른 스크롤 압축기를 설명하기 위한 단면도이다.9 and 10 are cross-sectional views illustrating a scroll compressor according to another embodiment of the present invention.
이하, 첨부된 도면을 참조하여 본 발명에 따른 바람직한 실시예를 상세히 설명하기로 한다. 도면에서 동일한 참조부호는 동일 또는 유사한 구성요소를 가리키는 것으로 사용된다.Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the drawings, the same reference numerals are used to indicate the same or similar components.
이하에서는, 도 1을 참조하여, 본 발명의 실시예에 따른 스크롤 압축기를 설명하도록 한다.Hereinafter, a scroll compressor according to an embodiment of the present invention will be described with reference to FIG. 1.
도 1은 본 발명의 실시예에 따른 스크롤 압축기를 설명하는 단면도이다. 1 is a cross-sectional view illustrating a scroll compressor according to an embodiment of the present invention.
도 1을 참조하면, 본 발명의 실시예에 따른 스크롤 압축기(1)는 내부공간을 갖는 케이싱(210), 내부공간의 상부에 구비되는 구동 모터(220), 구동 모터(220)의 하부에 배치되는 압축부(200), 구동 모터(220)의 구동력을 압축부(200)로 전달하는 회전축(226)이 포함될 수 있다. Referring to FIG. 1, a scroll compressor 1 according to an exemplary embodiment of the present invention is disposed in a casing 210 having an inner space, a drive motor 220 provided at an upper portion of an inner space, and a lower portion of the drive motor 220. Compression unit 200, the rotating shaft 226 for transmitting the driving force of the drive motor 220 to the compression unit 200 may be included.
여기에서, 케이싱(210)의 내부공간은 구동 모터(220)의 상측인 제1 공간(V1), 구동 모터(220)와 압축부(200)의 사이인 제2 공간(V2), 토출커버(330)에 의해 구획된 제3 공간(V3) 및 압축부(200)의 하측인 저유 공간(V4)으로 구획될 수 있다.Here, the inner space of the casing 210 is the first space (V1) of the upper side of the drive motor 220, the second space (V2) between the drive motor 220 and the compression unit 200, the discharge cover ( It may be divided into a third space (V3) partitioned by the 330 and the oil storage space (V4) that is lower than the compression unit 200.
케이싱(210)은 예를 들어, 원통형의 형상일 수 있고, 이에 따라, 케이싱(210)은 원통 쉘(211)을 포함할 수 있다. Casing 210 may be, for example, cylindrical in shape, and thus casing 210 may include cylindrical shell 211.
또한 원통 쉘(211)의 상부에는 상부 쉘(212)이 설치되고, 원통 쉘(211)의 하부에는 하부 쉘(214)이 설치될 수 있다. 상부 및 하부 쉘(212, 214)은 예를 들어, 용접으로 원통 쉘(211)에 결합되어 내부공간을 형성할 수 있다.In addition, an upper shell 212 may be installed at an upper portion of the cylindrical shell 211, and a lower shell 214 may be installed at a lower portion of the cylindrical shell 211. The upper and lower shells 212 and 214 may be coupled to the cylindrical shell 211 by welding to form an inner space, for example.
여기에서, 상부 쉘(212)에는 냉매 토출관(216)이 설치될 수 있는데, 냉매 토출관(216)은 압축부(200)에서 제2 공간(V2)과 제1 공간(V1)으로 토출되는 압축된 냉매가 외부로 배출되는 통로이다. Here, the coolant discharge tube 216 may be installed in the upper shell 212, and the coolant discharge tube 216 is discharged from the compression unit 200 into the second space V2 and the first space V1. It is a passage through which the compressed refrigerant is discharged to the outside.
참고로, 토출되는 냉매에 혼입된 오일을 분리하는 오일 세퍼레이터(미도시)가 냉매 토출관(216)과 연결될 수 있다.For reference, an oil separator (not shown) for separating oil mixed in the discharged refrigerant may be connected to the refrigerant discharge pipe 216.
하부 쉘(214)은 오일을 저장할 수 있는 저유 공간(V4)을 형성할 수 있다.The lower shell 214 may form a low oil space V4 through which oil can be stored.
저유 공간(V4)은 압축기가 원활하게 작동될 수 있도록 압축부(200)에 오일을 공급하는 오일챔버로서의 기능을 수행할 수 있다.The oil storage space V4 may function as an oil chamber for supplying oil to the compression unit 200 so that the compressor can be smoothly operated.
또한 원통 쉘(211)의 측면에는 압축될 냉매가 유입되는 통로인 냉매 흡입관(218)이 설치될 수 있다. In addition, a side surface of the cylindrical shell 211 may be provided with a refrigerant suction pipe 218 which is a passage through which the refrigerant to be compressed is introduced.
냉매 흡입관(218)은 고정 스크롤(250)의 측면을 따라 압축실(S1)까지 관통되어 설치될 수 있다.The refrigerant suction pipe 218 may be installed to penetrate the compression chamber S1 along the side of the fixed scroll 250.
이러한 케이싱(210) 내측의 상부에는 구동 모터(220)가 설치될 수 있다.The driving motor 220 may be installed at an upper portion of the casing 210.
구체적으로, 구동 모터(220)는 고정자(222) 및 회전자(224)를 포함할 수 있다.Specifically, the drive motor 220 may include a stator 222 and a rotor 224.
고정자(222)는 예를 들어, 원통형일 수 있으며, 케이싱(210)에 고정될 수 있다. 고정자(222)는 그 내주면에 원주방향을 따라 다수 개의 슬롯(미도시)이 형성되어 코일(222a)이 권선된다. 또한 고정자(222)의 외주면에는 디컷(D-cut) 모양으로 절단되어 압축부(200)에서 토출되는 냉매 또는 오일이 통과하도록 냉매유로홈(212a)이 형성될 수 있다. Stator 222 may be cylindrical, for example, and may be secured to casing 210. The stator 222 has a plurality of slots (not shown) formed on the inner circumferential surface thereof so that the coil 222a is wound. In addition, a coolant flow path groove 212a may be formed on an outer circumferential surface of the stator 222 so as to pass through the coolant or oil discharged from the compression unit 200 by being cut in a D-cut shape.
회전자(224)는 고정자(222)의 내부에 결합되고, 회전동력을 발생시킬 수 있다. 또한, 회전자(224)의 중심에 회전축(226)이 압입됨으로써 회전자(224)와 함께 회전축(226)이 회전운동할 수 있다. 회전자(224)에 의해 발생된 회전동력은 회전축(226)을 통하여 압축부(200)에 전달된다.The rotor 224 may be coupled to the inside of the stator 222 and generate rotational power. In addition, by rotating the rotary shaft 226 in the center of the rotor 224, the rotary shaft 226 together with the rotor 224 can be rotated. The rotational power generated by the rotor 224 is transmitted to the compression unit 200 through the rotation shaft 226.
압축부(200)는 올담링(150), 메인 프레임(230), 고정 스크롤(250), 선회 스크롤(240) 및 토출커버(330)를 포함할 수 있다.The compression unit 200 may include an old dam ring 150, a main frame 230, a fixed scroll 250, a swing scroll 240, and a discharge cover 330.
올담링(150)은 메인 프레임(230)과 선회 스크롤(240) 사이에 설치될 수 있다. 또한 올담링(150)은 메인 프레임(230)과 선회 스크롤(240)에 각각 키결합되어 선회 스크롤(240)의 자전을 방지할 수 있다.The old dam ring 150 may be installed between the main frame 230 and the swing scroll 240. In addition, the old dam ring 150 may be keyed to the main frame 230 and the pivoting scroll 240, respectively, to prevent rotation of the pivoting scroll 240.
메인 프레임(230)은 구동 모터(220)의 하부에 구비되고, 압축부(200)의 상부를 형성할 수 있다.The main frame 230 may be provided below the driving motor 220 and may form an upper portion of the compression unit 200.
메인 프레임(230)에는 대략 원형을 갖는 프레임 경판부(이하, 제1 경판부)(232), 제1 경판부(232)의 중앙에 구비되고 회전축(226)이 관통하는 프레임 축수부(이하, 제1 축수부)(232a), 및 제1 경판부(232)의 외주부에서 하부로 돌출되는 프레임 측벽부(이하, 제1 측벽부)(231)가 구비될 수 있다.The main frame 230 includes a frame hard plate portion (hereinafter, referred to as a first hard plate portion) 232 having a substantially circular shape, and a frame bearing portion (232, through which the rotating shaft 226 penetrates) in the center of the first hard plate portion 232. The first bearing part 232a and the frame side wall part (hereinafter, the first side wall part) 231 protruding downward from the outer circumferential part of the first hard plate part 232 may be provided.
제1 측벽부(231)는 외주부가 원통 쉘(211)의 내주면과 접하고, 하단부가 후술할 고정 스크롤 측벽부(255)의 상단부와 접할 수 있다.The first sidewall portion 231 may have an outer circumferential portion in contact with an inner circumferential surface of the cylindrical shell 211, and a lower end portion may contact the upper end portion of the fixed scroll sidewall portion 255 which will be described later.
제1 측벽부(231)에는 그 제1 측벽부(231)의 내부를 축 방향으로 관통하여 냉매 통로를 이루는 프레임 토출공(이하, 제1 토출공)(231a)이 구비될 수 있다. 제1 토출공(231a)은 입구가 후술할 고정 스크롤 토출공(256b)의 출구와 연결되고, 출구가 제2 공간(V2)과 연결될 수 있다.The first sidewall portion 231 may be provided with a frame discharge hole (hereinafter referred to as a first discharge hole) 231a that penetrates the inside of the first sidewall portion 231 in the axial direction to form a refrigerant passage. The first discharge hole 231a may be connected to the outlet of the fixed scroll discharge hole 256b, which will be described later, and the outlet may be connected to the second space V2.
제1 축수부(232a)는 제1 경판부(232)의 상면에서 구동 모터(220) 측으로 돌출 형성될 수 있다. 또한 제1 축수부(232a)에는 후술할 회전축(226)의 메인 베어링부(226c)가 관통 지지되도록 제1 베어링부가 형성될 수 있다.The first bearing part 232a may protrude from the upper surface of the first hard plate part 232 toward the driving motor 220. In addition, the first bearing portion 232a may be formed with a first bearing portion such that the main bearing portion 226c of the rotating shaft 226 which will be described later is penetrated.
즉, 메인 프레임(230)의 중심에는 제1 베어링부를 이루는 회전축(226)의 메인 베어링부(226c)가 회전 가능하게 삽입되어 지지되는 제1 축수부(232a)가 축방향으로 관통 형성될 수 있다.That is, in the center of the main frame 230, the first bearing portion 232a, which is rotatably inserted and supported by the main bearing portion 226c of the rotating shaft 226 constituting the first bearing portion, may be formed in the axial direction. .
제1 경판부(232)의 상면에는 제1 축수부(232a)와 회전축(226) 사이에서 토출되는 오일을 포집하는 오일포켓(232b)이 형성될 수 있다.An oil pocket 232b may be formed on an upper surface of the first hard plate part 232 to collect oil discharged between the first bearing portion 232a and the rotation shaft 226.
구체적으로, 오일포켓(232b)은 제1 경판부(232)의 상면에 음각지게 형성되고, 제1 축수부(232a)의 외주면을 따라 환형으로 형성될 수 있다.Specifically, the oil pocket 232b may be intaglio formed on the upper surface of the first hard plate portion 232, and may be formed in an annular shape along the outer circumferential surface of the first bearing portion 232a.
메인 프레임(230)의 저면에는 고정 스크롤(250) 및 선회 스크롤(240)과 함께 공간을 형성하여 그 공간의 압력에 의해 선회 스크롤(240)을 지지하도록 배압실(S2)이 형성될 수 있다.The back pressure chamber S2 may be formed at the bottom of the main frame 230 to form a space together with the fixed scroll 250 and the swing scroll 240 to support the swing scroll 240 by the pressure of the space.
참고로, 배압실(S2)은 중간압 영역(즉, 중간압실)일 수 있고, 회전축(226)에 구비된 오일 공급 유로(226a)는 배압실(S2)보다 압력이 높은 고압 상태일 수 있다. 또한 회전축(226), 메인 프레임(230) 및 선회 스크롤(240)에 의해 둘러싸인 공간은 고압 영역(S3)일 수 있다.For reference, the back pressure chamber S2 may be an intermediate pressure region (ie, an intermediate pressure chamber), and the oil supply passage 226a provided in the rotation shaft 226 may be in a high pressure state in which pressure is higher than that of the back pressure chamber S2. . In addition, the space surrounded by the rotation shaft 226, the main frame 230, and the swing scroll 240 may be a high pressure region S3.
이러한 고압 영역(S3)과 중간압 영역(S2)을 구분하기 위해 메인 프레임(230) 및 선회 스크롤(240) 사이에 배압 씰(seal)(280)이 구비될 수 있다. 배압 씰(280)은 예를 들어, 밀봉 부재 역할을 할 수 있다.A back pressure seal 280 may be provided between the main frame 230 and the swing scroll 240 to distinguish the high pressure region S3 and the middle pressure region S2. The back pressure seal 280 may serve as a sealing member, for example.
또한 메인 프레임(230)은 고정 스크롤(250)과 결합하여 선회 스크롤(240)이 선회 가능하도록 설치될 수 있는 공간을 형성할 수 있다. 즉, 이러한 구조는 회전축(226)을 통해 압축부(200)에 회전동력이 전달될 수 있도록 회전축(226)을 감싸는 구조가 될 수 있다.In addition, the main frame 230 may be combined with the fixed scroll 250 to form a space in which the pivoting scroll 240 may be installed to be pivotable. That is, such a structure may be a structure surrounding the rotating shaft 226 so that the rotating power can be transmitted to the compression unit 200 through the rotating shaft 226.
메인 프레임(230)의 저면에는 제1 스크롤을 이루는 고정 스크롤(250)이 결합될 수 있다.The fixed scroll 250 forming the first scroll may be coupled to the bottom of the main frame 230.
구체적으로, 고정 스크롤(250)은 메인 프레임(230)의 하부에 구비될 수 있다.In detail, the fixed scroll 250 may be provided under the main frame 230.
또한 고정 스크롤(250)은 대략 원형을 갖는 고정 스크롤 경판부(이하, 제2 경판부)(254), 제2 경판부(254)의 외주부에서 상부로 돌출되는 고정 스크롤 측벽부(이하, 제2 측벽부)(255), 제2 경판부(254)의 상면에서 돌출되고 후술할 선회 스크롤(240)의 선회랩(241)과 치합되어(즉, 맞물려) 압축실(S1)을 형성하는 고정랩(251), 및 제2 경판부(254)의 배면 중앙에 형성되고 회전축(226)이 관통하는 고정 스크롤 축수부(이하, 제2 축수부)(252)를 구비할 수 있다. In addition, the fixed scroll 250 is a fixed scroll side plate portion (hereinafter referred to as a second hard plate portion) 254 having a substantially circular shape, a fixed scroll side wall portion (hereinafter referred to as a second projecting upward from the outer peripheral portion of the second hard plate portion 254) Fixed wrap that protrudes from the upper surface of the side wall portion 255 and the second hard plate portion 254 and engages (ie, engages with) the turning wrap 241 of the turning scroll 240 to be described later to form the compression chamber S1. 251 and a fixed scroll bearing portion (hereinafter referred to as a second bearing portion) 252 formed in the center of the rear surface of the second hard plate portion 254 and through which the rotating shaft 226 penetrates.
제2 경판부(254)에는 압축된 냉매를 압축실(S1)로부터 토출커버(330)의 내부공간으로 안내하는 토출구(253)가 형성될 수 있다. 또한 토출구(253)의 위치는 요구되는 토출압 등을 고려하여 임의로 설정될 수 있다.A discharge port 253 may be formed in the second hard plate part 254 to guide the compressed refrigerant from the compression chamber S1 to the internal space of the discharge cover 330. In addition, the position of the discharge port 253 may be arbitrarily set in consideration of the required discharge pressure.
여기에서, 토출구(253)가 하부 쉘(214)을 향해 형성됨에 따라 고정 스크롤(250)의 저면에는, 토출되는 냉매를 수용하고 해당 냉매를 오일과 혼합되지 않게 후술할 고정 스크롤 토출공(256b)으로 안내하기 위한 토출커버(330)가 결합될 수 있다. 토출커버(330)는 냉매의 토출유로와 저유 공간(V4)을 분리할 수 있도록 고정 스크롤(250)의 저면에 밀봉 결합될 수 있다. Here, as the discharge port 253 is formed toward the lower shell 214, the fixed scroll discharge hole 256b to be described later so as to accommodate the refrigerant discharged and not mix the refrigerant with oil on the bottom of the fixed scroll 250. Discharge cover 330 for guiding to it may be combined. The discharge cover 330 may be sealingly coupled to the bottom surface of the fixed scroll 250 to separate the discharge flow path of the refrigerant and the oil storage space V4.
고정 스크롤(250)과 토출커버(330) 사이에는 토출구(253)를 개폐시키는 토출 밸브(317)가 구비된 스토퍼 시트(320)와, 토출 밸브(317)의 가동 범위를 제한하는 밸브 스토퍼(327)가 구비된 스토퍼 시트(320)가 배치된다. A stopper seat 320 having a discharge valve 317 for opening and closing the discharge port 253 between the fixed scroll 250 and the discharge cover 330, and a valve stopper 327 for limiting the movable range of the discharge valve 317. ) Is provided with a stopper sheet 320.
이때 밸브 시트(310), 스토퍼 시트(320) 및 토출커버(330)는 고정부재(340)에 의해 고정 스크롤(250)의 일면에 함께 체결되어 고정된다. 밸브 시트(310), 스토퍼 시트(320) 및 토출커버(330)의 동시 체결 구조에 대한 자세한 설명은 이하에서 후술하도록 한다.In this case, the valve seat 310, the stopper seat 320, and the discharge cover 330 are fastened together by being fixed to one surface of the fixed scroll 250 by the fixing member 340. Detailed description of the simultaneous fastening structure of the valve seat 310, the stopper seat 320 and the discharge cover 330 will be described later.
또한 토출커버(330)에는 제2 베어링부를 이루는 회전축(226)의 서브 베어링부(226g)에 결합되어 케이싱(210)의 저유 공간(V4)에 잠기는 오일피더(271)가 관통하도록 관통구멍(332a)이 형성될 수 있다.In addition, the discharge cover 330 is coupled to the sub bearing part 226g of the rotating shaft 226 forming the second bearing part so that the oil feeder 271 immersed in the oil storage space V4 of the casing 210 passes through the through hole 332a. ) May be formed.
한편, 제2 측벽부(255)는 외주부가 원통 쉘(211)의 내주면과 접하고, 상단부가 제1 측벽부(231)의 하단부와 접할 수 있다. On the other hand, the second side wall portion 255 may have an outer circumference portion contacting the inner circumferential surface of the cylindrical shell 211, and an upper end portion may contact the lower end portion of the first side wall portion 231.
또한, 제2 측벽부(255)에는 그 제2 측벽부(255)의 내부를 축 방향으로 관통하여 제1 토출공(231a)과 함께 냉매 통로를 이루는 고정 스크롤 토출공(이하, 제2 토출공)(256b)이 구비될 수 있다. The second side wall portion 255 also penetrates the inside of the second side wall portion 255 in the axial direction to form a refrigerant passage together with the first discharge hole 231a (hereinafter, referred to as a second discharge hole). ) 256b may be provided.
제2 토출공(256b)은 제1 토출공(231a)에 대응되게 형성되고, 입구가 토출커버(330)의 내부공간과 연결되고, 출구가 제1 토출공(231a)의 입구와 연결될 수 있다.The second discharge hole 256b may be formed to correspond to the first discharge hole 231a, the inlet may be connected to the inner space of the discharge cover 330, and the outlet may be connected to the inlet of the first discharge hole 231a. .
여기에서, 제2 토출공(256b)과 제1 토출공(231a)은 압축실(S1)에서 토출커버(330)의 내부공간으로 토출된 냉매가 제2 공간(V2)으로 안내되도록, 제3 공간(V3)과 제2 공간(V2)을 연결시킬 수 있다. Here, the second discharge hole 256b and the first discharge hole 231a may be configured to guide the refrigerant discharged from the compression chamber S1 into the internal space of the discharge cover 330 to the second space V2. The space V3 and the second space V2 may be connected.
그리고, 제2 측벽부(255)에는 냉매 흡입관(218)이 압축실(S1)의 흡입 측에 연결되도록 설치될 수 있다. 또한 냉매 흡입관(218)은 제2 토출공(256b)과 이격되게 설치될 수 있다.In addition, the second side wall part 255 may be installed such that the refrigerant suction pipe 218 is connected to the suction side of the compression chamber S1. In addition, the refrigerant suction pipe 218 may be installed to be spaced apart from the second discharge hole 256b.
제2 축수부(252)는 제2 경판부(254)의 하면에서 저유 공간(V4) 측으로 돌출 형성될 수 있다. The second bearing part 252 may protrude from the lower surface of the second hard plate part 254 toward the storage space V4.
또한 제2 축수부(252)에는 회전축(226)의 서브 베어링부(226g)가 삽입되어 지지되도록 제2 베어링부가 구비될 수 있다.In addition, the second bearing portion 252 may be provided with a second bearing portion so that the sub-bearing portion 226g of the rotating shaft 226 is inserted and supported.
그리고, 제2 축수부(252)는 하단부가 회전축(226)의 서브 베어링부(226g) 하단을 지지하여 스러스트 베어링면을 이루도록 축 중심을 향해 절곡될 수 있다.The second bearing portion 252 may be bent toward the center of the shaft such that the lower end portion supports the lower end of the sub bearing portion 226g of the rotation shaft 226 to form a thrust bearing surface.
메인 프레임(230)과 고정 스크롤(250)의 사이에는 제2 스크롤을 이루는 선회 스크롤(240)이 설치될 수 있다.A pivoting scroll 240 may be installed between the main frame 230 and the fixed scroll 250 to form a second scroll.
구체적으로, 선회 스크롤(240)은 회전축(226)에 결합되어 선회운동을 하면서 고정 스크롤(250)과의 사이에 두 개 한 쌍의 압축실(S1)을 형성할 수 있다.Specifically, the swinging scroll 240 may be coupled to the rotating shaft 226 to form two pairs of compression chambers S1 between the fixed scroll 250 and the pivoting movement.
또한 선회 스크롤(240)은 대략 원형을 갖는 선회 스크롤 경판부(이하, 제3 경판부)(245), 제3 경판부(245)의 하면에서 돌출되어 고정랩(251)과 맞물리는 선회랩(241) 및 제3 경판부(245)의 중앙에 구비되고 회전축(226)의 후술할 편심부(226f)에 회전 가능하게 결합되는 회전축 결합부(242)를 포함할 수 있다.In addition, the pivoting scroll 240 is a pivoting scroll swivel plate part (hereinafter referred to as a third hard plate part) 245 having a substantially circular shape, and a swivel wrap that protrudes from the lower surface of the third hard plate part 245 and engages with the fixed wrap 251 ( 241 and a rotation shaft coupling portion 242 which is provided at the center of the third hard plate portion 245 and rotatably coupled to the eccentric portion 226f to be described later of the rotation shaft 226.
선회 스크롤(240)의 경우, 제3 경판부(245)의 외주부가 제2 측벽부(255)의 상단부에 위치하고, 선회랩(241)의 하단부가 제2 경판부(254)의 상면에 밀착되어, 고정 스크롤(250)에 지지될 수 있다.In the case of the swinging scroll 240, the outer circumferential portion of the third hard plate portion 245 is positioned at the upper end of the second side wall portion 255, and the lower end of the swing wrap 241 is in close contact with the upper surface of the second hard plate portion 254. It may be supported by the fixed scroll 250.
회전축 결합부(242)의 외주부는 선회랩(241)과 연결되어 압축과정에서 고정랩(251)과 함께 압축실(S1)을 형성하는 역할을 하게 된다. The outer circumferential portion of the rotating shaft coupling portion 242 is connected to the turning wrap 241 to form a compression chamber S1 together with the fixed wrap 251 in the compression process.
참고로, 고정랩(251)과 선회랩(241)은 인볼류트 형상으로 형성될 수 있지만 그 외의 다양한 형상으로 형성될 수 있다. For reference, the fixed wrap 251 and the swing wrap 241 may be formed in an involute shape, but may be formed in various other shapes.
여기에서, 인볼류트 형상은 임의의 반경을 갖는 기초원의 주위에 감겨있는 실을 풀어낼 때 실의 단부가 그리는 궤적에 해당되는 곡선을 의미한다. Here, the involute shape means a curve that corresponds to the trajectory that the end of the yarn draws when unwinding the yarn wound around the base circle with an arbitrary radius.
또한 회전축 결합부(242)에는 회전축(226)의 편심부(226f)가 삽입될 수 있다. 회전축 결합부(242)에 삽입된 편심부(226f)는 선회랩(241) 또는 고정랩(251)과 압축기의 반경방향으로 중첩될 수 있다. In addition, the eccentric portion 226f of the rotation shaft 226 may be inserted into the rotation shaft coupling portion 242. The eccentric portion 226f inserted into the rotation shaft coupling portion 242 may overlap the turning wrap 241 or the fixed wrap 251 in the radial direction of the compressor.
여기에서, 반경방향은 축방향(즉, 상하방향)과 직교하는 방향(즉, 좌우방향)을 의미할 수 있고, 보다 구체적으로, 반경방향은 회전축의 외측에서 내측을 향하는 방향을 의미할 수 있다.Here, the radial direction may mean a direction orthogonal to the axial direction (ie, up and down direction) (ie, the left and right direction), and more specifically, the radial direction may mean a direction from the outside of the rotation axis toward the inside. .
상기와 같이, 회전축(226)의 편심부(226f)가 선회 스크롤(240)의 경판부(245)를 관통하여 선회랩(241)과 반경방향으로 중첩되는 경우, 냉매의 반발력과 압축력이 경판부(245)를 기준으로 하여 동일 평면에 가해지면서 서로 일정 부분 상쇄될 수 있다. As described above, when the eccentric portion 226f of the rotating shaft 226 penetrates through the hard plate portion 245 of the revolving scroll 240 and radially overlaps the revolving wrap 241, the repulsive force and the compressive force of the refrigerant are hard plate portions. Based on the reference numeral 245 may be applied to the same plane and partially offset each other.
회전축(226)은 구동 모터(220)에 결합되며, 케이싱(210)의 저유 공간(V4)에 담긴 오일을 상부로 안내하기 위한 오일 공급 유로(226a)를 구비할 수 있다.The rotary shaft 226 is coupled to the driving motor 220 and may include an oil supply passage 226a for guiding oil contained in the oil storage space V4 of the casing 210 to the top.
구체적으로, 회전축(226)은 그 상부가 회전자(224)의 중심에 압입되어 결합되고, 그 하부는 압축부(200)에 결합되어 반경방향으로 지지될 수 있다.Specifically, the rotating shaft 226 may be coupled to the upper portion of the rotor 224 is pressed in the center, the lower portion is coupled to the compression unit 200 can be supported radially.
이로써, 회전축(226)은 구동 모터(220)의 회전력을 압축부(200)의 선회 스크롤(240)에 전달할 수 있다. 또한 이를 통해 회전축(226)에 편심 결합된 선회 스크롤(240)이 고정 스크롤(250)에 대해 선회운동을 하게 된다.As a result, the rotation shaft 226 may transmit the rotational force of the driving motor 220 to the swing scroll 240 of the compression unit 200. In addition, the pivoting scroll 240 eccentrically coupled to the rotating shaft 226 through the pivoting movement with respect to the fixed scroll (250).
이러한 회전축(226)의 하부에는 메인 프레임(230)의 제1 축수부(232a)에 삽입되어 반경방향으로 지지되도록 메인 베어링부(226c)가 형성될 수 있다. 또한 메인 베어링부(226c)의 하부에는 고정 스크롤(250)의 제2 축수부(252)에 삽입되어 반경방향으로 지지되도록 서브 베어링부(226g)가 형성될 수 있다. The main bearing part 226c may be formed below the rotating shaft 226 so as to be inserted into the first bearing part 232a of the main frame 230 and supported in the radial direction. In addition, a sub bearing part 226g may be formed below the main bearing part 226c to be inserted into the second bearing part 252 of the fixed scroll 250 to be radially supported.
그리고 메인 베어링부(226c)와 서브 베어링부(226g)의 사이에는 선회 스크롤(240)의 회전축 결합부(242)에 삽입되어 결합되는 편심부(226f)가 형성될 수 있다. In addition, an eccentric portion 226f may be formed between the main bearing portion 226c and the sub bearing portion 226g to be inserted into and coupled to the rotation shaft coupling portion 242 of the swing scroll 240.
메인 베어링부(226c)와 서브 베어링부(226g)는 동일 축중심을 가지도록 동축 선상에 형성될 수 있다. 반면에, 편심부(226f)는 메인 베어링부(226c) 또는 서브 베어링부(226g)에 대해 반경방향으로 편심지게 형성될 수 있다. The main bearing portion 226c and the sub bearing portion 226g may be formed coaxially to have the same axis center. On the other hand, the eccentric portion 226f may be formed to be radially eccentric with respect to the main bearing portion 226c or the sub bearing portion 226g.
참고로, 편심부(226f)는 그 외경이 메인 베어링부(226c)의 외경보다는 작게, 서브 베어링부(226g)의 외경보다는 크게 형성될 수 있다. 이 경우, 회전축(226)을 각각의 축수부(232a, 252)와 회전축 결합부(242)를 통과하여 결합시키는데 유리할 수 있다. For reference, the eccentric portion 226f may have an outer diameter smaller than the outer diameter of the main bearing portion 226c and larger than the outer diameter of the sub bearing portion 226g. In this case, it may be advantageous to couple the rotating shaft 226 through each of the bearing parts 232a and 252 and the rotating shaft coupling part 242.
반면, 편심부(226f)가 회전축(226)에 일체로 형성되지 않고 별도의 베어링을 이용하여 형성될 수도 있다. 이 경우에는 서브 베어링부(226g)의 외경이 편심부(226f)의 외경보다 작게 형성되지 않고도 회전축(226)이 각각의 축수부(232a, 252)와 회전축 결합부(242)에 삽입되어 결합될 수 있다.On the other hand, the eccentric portion 226f may not be integrally formed on the rotation shaft 226 but may be formed using a separate bearing. In this case, the rotary shaft 226 is inserted into and coupled to the respective bearing portions 232a and 252 and the rotary shaft coupling portion 242 without the outer diameter of the sub bearing portion 226g being smaller than the outer diameter of the eccentric portion 226f. Can be.
그리고 회전축(226)의 내부에는 저유 공간(V4)의 오일을 각 베어링부(226c, 226g)의 외주면과 편심부(226f)의 외주면에 공급하기 위한 오일 공급 유로(226a)가 형성될 수 있다. 또한 회전축(226)의 베어링부 및 편심부(226c, 226g, 226f)에는 오일 공급 유로(226a)에서 외주면으로 관통되는 오일 홀(228b, 228d, 228e)이 형성될 수 있다.In addition, an oil supply passage 226a may be formed in the rotation shaft 226 to supply oil in the oil storage space V4 to the outer circumferential surface of each bearing portion 226c and 226g and the outer circumferential surface of the eccentric portion 226f. In addition, oil holes 228b, 228d, and 228e penetrating to the outer circumferential surface of the oil supply passage 226a may be formed in the bearing portion and the eccentric portions 226c, 226g, and 226f of the rotation shaft 226.
참고로, 오일 공급 유로(226a)를 통해 상부로 안내된 오일은, 오일 홀(228b, 228d, 228e)을 통해 토출되어 베어링면 등에 공급될 수 있다. For reference, the oil guided upward through the oil supply passage 226a may be discharged through the oil holes 228b, 228d, and 228e and supplied to the bearing surface.
그리고 회전축(226)의 하단, 즉 서브 베어링부(226g)의 하단에는 저유 공간(V4)에 채워진 오일을 펌핑하기 위한 오일피더(271)가 결합될 수 있다. An oil feeder 271 for pumping oil filled in the oil storage space V4 may be coupled to a lower end of the rotation shaft 226, that is, a lower end of the sub bearing part 226g.
오일피더(271)는 회전축(226)의 오일 공급 유로(226a)에 삽입되어 결합되는 오일공급관(273)과, 오일공급관(273)의 내부에 삽입되어 오일을 흡상하는 오일흡상부재(274)로 이루어질 수 있다. The oil feeder 271 is an oil supply pipe 273 inserted into and coupled to the oil supply flow path 226a of the rotation shaft 226, and an oil suction member 274 inserted into the oil supply pipe 273 to suck oil. Can be done.
여기에서, 오일공급관(273)은 토출커버(330)의 관통구멍(332a)을 통과하여 저유 공간(V4)에 잠기도록 설치될 수 있고, 오일흡상부재(274)는 프로펠러처럼 기능할 수 있다. Here, the oil supply pipe 273 may be installed to pass through the through hole 332a of the discharge cover 330 to be immersed in the oil storage space V4, and the oil suction member 274 may function as a propeller.
또한 도면에 도시되어 있지는 않지만, 오일피더(271) 대신 저유 공간(V4)에 채워진 오일을 상부로 강제로 펌핑하기 위해 서브 베어링부(226g)에 트로코이드 펌프(trochoid pump; 미도시)가 결합될 수도 있다.Although not shown in the drawings, a trochoid pump (not shown) may be coupled to the sub-bearing portion 226g to forcibly pump oil filled in the oil storage space V4 to the top instead of the oil feeder 271. have.
또한 도면에 도시되어 있지는 않지만, 본 발명의 실시예에 따른 스크롤 압축기는 메인 베어링부(226c)의 상단과 메인 프레임(230)의 상단 사이의 간극을 밀봉하기 위한 제1 실링 부재(미도시) 및 서브 베어링부(226g)의 하단과 고정 스크롤(250)의 하단 사이의 간극을 밀봉하기 위한 제2 실링 부재(미도시)를 더 포함할 수 있다.In addition, although not shown in the drawings, the scroll compressor according to the embodiment of the present invention includes a first sealing member (not shown) for sealing a gap between the upper end of the main bearing portion 226c and the upper end of the main frame 230; A second sealing member (not shown) may be further included to seal a gap between the lower end of the sub bearing part 226g and the lower end of the fixed scroll 250.
참고로, 이러한 제1 및 제2 실링 부재를 통해 오일이 베어링면을 따라 압축부(200) 외부로 유출되는 것을 방지할 수 있고, 이를 통해 차압 급유 구조의 구현이 가능하고 냉매의 역류를 방지할 수 있다.For reference, it is possible to prevent the oil from flowing out of the compression unit 200 along the bearing surface through the first and second sealing members, thereby enabling the implementation of a differential pressure oil supply structure and preventing backflow of the refrigerant. Can be.
회전자(224) 또는 회전축(226)에는 소음진동을 억제하기 위한 밸런스 웨이트(227)가 결합될 수 있다. A balance weight 227 for suppressing noise and vibration may be coupled to the rotor 224 or the rotating shaft 226.
참고로, 밸런스 웨이트(227)는 구동 모터(220)와 압축부(200) 사이, 즉 제2 공간(V2)에 구비될 수 있다. For reference, the balance weight 227 may be provided between the driving motor 220 and the compression unit 200, that is, in the second space V2.
이어서, 본 발명의 실시예에 의한 스크롤 압축기(1)의 동작과정은 다음과 같다.Subsequently, the operation process of the scroll compressor 1 according to the embodiment of the present invention is as follows.
구동 모터(220)에 전원이 인가되어 회전력이 발생되면, 그 구동 모터(220)의 회전자(224)에 결합된 회전축(226)이 회전을 하게 된다. 그러면 회전축(226)에 편심 결합된 선회 스크롤(240)이 고정 스크롤(250)에 대해 선회운동을 하면서 선회랩(241)과 고정랩(251) 사이에 압축실(S1)을 형성하게 된다. 압축실(S1)은 중심방향으로 점차 체적이 좁아지면서 연속하여 여러 단계로 형성될 수 있다. When power is applied to the driving motor 220 to generate a rotational force, the rotating shaft 226 coupled to the rotor 224 of the driving motor 220 rotates. Then, the swinging scroll 240 eccentrically coupled to the rotating shaft 226 forms a compression chamber S1 between the pivoting wrap 241 and the fixed wrap 251 while pivoting about the fixed scroll 250. Compression chamber (S1) may be formed in a number of steps in succession, gradually narrowing in the center direction.
그러면, 케이싱(210)의 외부에서 냉매 흡입관(218)을 통하여 공급되는 냉매는 압축실(S1)로 직접 유입될 수 있다. 이 냉매는 선회 스크롤(240)의 선회운동에 의해 압축실(S1)의 토출실 방향으로 이동하면서 압축되었다가 토출실에서 고정 스크롤(250)의 토출구(253)를 통해 제3 공간(V3)으로 토출될 수 있다. Then, the refrigerant supplied through the refrigerant suction pipe 218 from the casing 210 may directly flow into the compression chamber S1. The refrigerant is compressed while moving in the direction of the discharge chamber of the compression chamber S1 by the swinging movement of the swing scroll 240, and then from the discharge chamber to the third space V3 through the discharge port 253 of the fixed scroll 250. Can be discharged.
이 후, 제3 공간(V3)으로 토출되는 압축된 냉매는 제2 토출공(256b) 및 제1 토출공(231a)을 통해 케이싱(210)의 내부공간으로 토출되었다가 냉매 토출관(216)을 통해 케이싱(210)의 외부로 토출되는 일련의 과정을 반복하게 된다. Thereafter, the compressed refrigerant discharged into the third space V3 is discharged into the internal space of the casing 210 through the second discharge hole 256b and the first discharge hole 231a, and then the refrigerant discharge pipe 216. Through a series of processes to be discharged to the outside of the casing 210 is repeated.
이하에서는, 도 2 내지 도 10을 참조하여, 도 1의 고정 스크롤(250)에 결합된 밸브 시트(310), 스토퍼 시트(320) 및 토출커버(330)의 동시 체결 구조에 대해 설명하도록 한다.Hereinafter, the simultaneous fastening structure of the valve seat 310, the stopper seat 320, and the discharge cover 330 coupled to the fixed scroll 250 of FIG. 1 will be described with reference to FIGS. 2 to 10.
도 2는 도 1의 고정 스크롤 상에 결합된 구성요소를 나타내는 부분 사시도이다. 도 3은 도 1의 고정 스크롤 상에 결합되는 구성요소의 분해 사시도이다. 도 4는 도 3의 밸브 시트를 나타내는 평면도이다. 도 5는 도 3의 스토퍼 시트를 나타내는 평면도이다. 도 6은 도 3의 토출커버를 나타내는 사시도이다. FIG. 2 is a partial perspective view showing components coupled onto the fixed scroll of FIG. 1. 3 is an exploded perspective view of the components coupled onto the fixed scroll of FIG. 1; 4 is a plan view illustrating the valve seat of FIG. 3. FIG. 5 is a plan view illustrating the stopper sheet of FIG. 3. FIG. 6 is a perspective view illustrating the discharge cover of FIG. 3.
여기에서 도 2는 밸브 시트(310)와 스토퍼 시트(320)의 상면을 표시하기 위해 토출커버(330)를 투명하게 나타낸 도면이다.2 is a view showing the discharge cover 330 transparent to display the upper surface of the valve seat 310 and the stopper seat 320.
도 2 내지 도 6을 참조하면, 본 발명의 일 실시예에 따른 스크롤 압축기(1)의 고정 스크롤(250)은 일면 상에 밸브 시트(310), 스토퍼 시트(320) 및 토출커버(330)가 순차적으로 배치된다.2 to 6, the fixed scroll 250 of the scroll compressor 1 according to an embodiment of the present invention has a valve seat 310, a stopper seat 320, and a discharge cover 330 on one surface thereof. Are arranged sequentially.
구체적으로, 밸브 시트(310)는 고정 스크롤(250)의 일면에 접하고, 일정한 두께의 판형 형상으로 형성된다. 밸브 시트(310)는 일정한 탄성을 가진 금속 또는 비금속 재질로 형성될 수 있다.Specifically, the valve seat 310 is in contact with one surface of the fixed scroll 250, and is formed in a plate shape of a constant thickness. The valve seat 310 may be formed of a metal or nonmetal material having a certain elasticity.
밸브 시트(310)의 중앙에는 고정 스크롤(250)의 제2 축수부(252)와 결합 가능한 제1 관통구(312)가 형성된다. In the center of the valve seat 310, a first through hole 312 that is engageable with the second bearing portion 252 of the fixed scroll 250 is formed.
밸브 시트(310)의 외주면 상에는 고정부재(340)가 관통 결합되는 적어도 하나의 제1 체결홀(314)과, 제2 토출공(256b)과 연통되어 냉매가 이동되는 제1 관통홀(316b)이 형성된다. 참고로, 제1 관통홀(316b)은 제2 토출공(256b)과 동일한 크기 및 형상으로 형성될 수 있으나, 이는 하나의 예시에 불과하며 본 발명이 이에 한정되는 것은 아니다.On the outer circumferential surface of the valve seat 310, at least one first fastening hole 314 through which the fixing member 340 is coupled, and a first through hole 316b communicating with the second discharge hole 256b to move the refrigerant. Is formed. For reference, the first through hole 316b may be formed in the same size and shape as the second discharge hole 256b, but this is merely an example and the present invention is not limited thereto.
밸브 시트(310)의 내측에는 고정 스크롤(250)의 토출구(253)를 개폐시키기 위한 토출 밸브(317)가 형성된다. 밸브 시트(310)는 고정 스크롤(250) 상에 형성된 토출구(253)와 동일한 수의 토출 밸브(317)를 구비할 수 있다. 여기에서, 고정 스크롤(250)의 토출구(253)의 수와, 밸브 시트(310)에 구비된 토출 밸브(317)의 수는 동일할 수 있다.Inside the valve seat 310, a discharge valve 317 is formed to open and close the discharge port 253 of the fixed scroll 250. The valve seat 310 may have the same number of discharge valves 317 as the discharge holes 253 formed on the fixed scroll 250. Here, the number of discharge ports 253 of the fixed scroll 250 and the number of discharge valves 317 provided in the valve seat 310 may be the same.
토출 밸브(317)의 형상은 밸브 식각홈(318)에 의해 정의된다. 즉, 밸브 시트(310)에 형성된 밸브 식각홈(318)에 의해 토출 밸브(317)의 형태가 결정된다. 이때, 토출 밸브(317)는 일측이 밸브 시트(310)에 연결되고 타측이 탄성에 의해 밸브 시트(310)로부터 분리되어 휘어지도록 형성된다.The shape of the discharge valve 317 is defined by the valve etch groove 318. That is, the shape of the discharge valve 317 is determined by the valve etching groove 318 formed in the valve seat 310. At this time, the discharge valve 317 is formed so that one side is connected to the valve seat 310 and the other side is bent from the valve seat 310 by elasticity.
이때, 밸브 식각홈(318)은 토출 밸브(317)의 외주면을 따라 일정 간격으로 형성된다. 다만, 본 발명이 이에 한정되는 것은 아니며 도면에 도시된 바와 달리 밸브 식각홈(318)의 두께는 위치마다 다르게 형성될 수 있다.In this case, the valve etching grooves 318 are formed at regular intervals along the outer circumferential surface of the discharge valve 317. However, the present invention is not limited thereto, and the thickness of the valve etching groove 318 may be different for each position, as shown in the drawing.
토출 밸브(317)는 고정 스크롤(250)의 토출구(253)와 오버랩 되도록 대략 원형으로 형성되는 밸브헤드부(317a)와, 동일한 두께로 길게 연장 형성되는 밸브바디부(317b)로 구성된다. 이때, 밸브헤드부(317a)의 직경은 밸브바디부(317b)의 폭보다 크게 형성될 수 있다. 참고로, 밸브헤드부(317a)와 밸브바디부(317b)의 모양과 크기는 얼마든지 다양하게 변형되어 실시될 수 있다.The discharge valve 317 is composed of a valve head portion 317a which is formed in a substantially circular shape so as to overlap the discharge port 253 of the fixed scroll 250, and a valve body portion 317b that extends to the same thickness. At this time, the diameter of the valve head portion 317a may be larger than the width of the valve body portion 317b. For reference, the shape and size of the valve head portion 317a and the valve body portion 317b may be variously modified and implemented.
스토퍼 시트(320)는 밸브 시트(310)의 일면에 접하고, 일정한 두께의 판형 형상으로 형성된다. The stopper seat 320 is in contact with one surface of the valve seat 310 and is formed in a plate shape having a constant thickness.
이때, 스토퍼 시트(320)는 스토퍼 시트(320)의 두께보다 두껍게 형성된다. 밸브 스토퍼(327)는 일정 크기 이상의 두께로 형성되어 형상이 쉽게 변하지 않는 금속 또는 비금속 재질로 형성될 수 있다. 또한, 스토퍼 시트(320)는 밸브 시트(310)보다 강한 강성의 재질로 형성될 수 있다.In this case, the stopper sheet 320 is formed thicker than the thickness of the stopper sheet 320. The valve stopper 327 may be formed of a metal or non-metal material that is formed to a thickness of a predetermined size or more and is not easily changed in shape. In addition, the stopper seat 320 may be formed of a material that is stronger than the valve seat 310.
스토퍼 시트(320)의 중앙에는 고정 스크롤(250)의 제2 축수부(252)와 결합 가능한 제2 관통구(322)가 형성된다. 제2 관통구(322)는 앞서 설명한 제1 관통구(312)와 동일한 크기와 형상으로 형성될 수 있다.A second through hole 322 that is engageable with the second bearing portion 252 of the fixed scroll 250 is formed at the center of the stopper sheet 320. The second through hole 322 may be formed in the same size and shape as the first through hole 312 described above.
스토퍼 시트(320)의 외주면 상에는 고정부재(340)가 관통 결합되는 적어도 하나의 제2 체결홀(324)과, 제2 토출공(256b) 및 제1 관통홀(316b)과 연통되어 냉매가 이동되는 제2 관통홀(326b)이 형성된다. 참고로, 제2 관통홀(326b)은 제2 토출공(256b) 및 제1 관통홀(316b)과 동일한 크기 및 형상으로 형성될 수 있으나, 이는 하나의 예시에 불과하며 본 발명이 이에 한정되는 것은 아니다.On the outer circumferential surface of the stopper sheet 320, the refrigerant communicates with the at least one second fastening hole 324 through which the fixing member 340 is coupled, the second discharge hole 256b, and the first through hole 316b. The second through hole 326b is formed. For reference, the second through hole 326b may be formed in the same size and shape as the second discharge hole 256b and the first through hole 316b, but this is only one example and the present invention is limited thereto. It is not.
스토퍼 시트(320)의 내측에는 토출 밸브(317)의 가동 범위를 제한하는 밸브 스토퍼(327)가 형성된다. 밸브 스토퍼(327)는 토출 밸브(317)과 오버랩되도록 토출 밸브(317)의 상측에 위치한다. A valve stopper 327 is formed inside the stopper seat 320 to limit the movable range of the discharge valve 317. The valve stopper 327 is located above the discharge valve 317 so as to overlap with the discharge valve 317.
밸브 스토퍼(327)는 단부로 갈수록 토출 밸브(317)로부터 멀어지도록 외측으로 구부러져 형성된다. 즉, 밸브 스토퍼(327)는 스토퍼 시트(320)의 상면으로부터 돌출 형성되며 단부로 갈수록 스토퍼 시트(320)의 상면으로부터 멀어지도록 형성된다.The valve stopper 327 is formed to be bent outwardly away from the discharge valve 317 toward the end. That is, the valve stopper 327 protrudes from the upper surface of the stopper seat 320 and is formed to be farther from the upper surface of the stopper seat 320 toward the end.
참고로, 토출 밸브(317)는 밸브 스토퍼(327)보다 얇은 두께로 형성되므로 일정 기압 이상의 냉매에 의해 외측으로 휘어짐으로써 토출구(253)를 개방시킬 수 있다. 다만, 토출 밸브(317)가 일정 범위 이상 휘어지는 경우, 토출 밸브(317)가 탄성을 잃고 제자리로 돌아가지 못할 수 있다. For reference, since the discharge valve 317 is formed to be thinner than the valve stopper 327, the discharge valve 317 may be bent outward by a refrigerant having a predetermined pressure or higher to open the discharge port 253. However, when the discharge valve 317 is bent over a predetermined range, the discharge valve 317 may lose elasticity and may not return to its original position.
따라서, 밸브 스토퍼(327)는 토출 밸브(317)의 상부에 배치되어 토출 밸브(317)가 일정 범위 이상 휘어지지 않도록 가이드 하는 기능을 수행한다. 즉, 토출 밸브(317)는 밸브 스토퍼(327)가 외측으로 굽어진 부분까지만 휘어지도록 가이드 한다. 다르게 표현하면, 밸브 스토퍼(327)는 토출 밸브(317)의 최대 열림량을 제어하는 기능을 수행한다.Therefore, the valve stopper 327 is disposed above the discharge valve 317 to perform a function of guiding the discharge valve 317 so as not to bend over a predetermined range. That is, the discharge valve 317 guides the valve stopper 327 to bend only to the portion which is bent outward. In other words, the valve stopper 327 performs a function of controlling the maximum opening amount of the discharge valve 317.
이때, 스토퍼 시트(320)는 밸브 시트(310) 상에 형성된 토출 밸브(317)와 동일한 수의 밸브 스토퍼(327)를 구비한다. 따라서, 고정 스크롤(250)의 토출구(253)의 수와, 스토퍼 시트(320)에 구비된 밸브 스토퍼(327)의 수는 동일할 수 있다.At this time, the stopper seat 320 includes the same number of valve stoppers 327 as the discharge valve 317 formed on the valve seat 310. Therefore, the number of discharge ports 253 of the fixed scroll 250 and the number of valve stoppers 327 provided in the stopper seat 320 may be the same.
밸브 스토퍼(327)는 스토퍼 식각홈(328)에 의해 형상이 정의된다. 밸브 스토퍼(327)는 스토퍼 시트(320)에 형성된 스토퍼 식각홈(328)에 의해 형태가 결정된다. 밸브 스토퍼(327)는 일측이 스토퍼 시트(320)에 연결되고 타측이 스토퍼 시트(320)로부터 돌출되어 외측으로 휘어지도록 형성된다. The valve stopper 327 has a shape defined by the stopper etch groove 328. The shape of the valve stopper 327 is determined by the stopper etch groove 328 formed in the stopper seat 320. The valve stopper 327 is formed such that one side is connected to the stopper seat 320 and the other side protrudes from the stopper seat 320 to bend outward.
이때, 스토퍼 식각홈(328)은 밸브 스토퍼(327)의 외주면을 따라 형성된다. In this case, the stopper etching groove 328 is formed along the outer circumferential surface of the valve stopper 327.
밸브 스토퍼(327)는 밸브 시트(310)의 토출 밸브(317)와 오버랩 되도록 대략 원형으로 형성되는 스토퍼헤드부(327a)와, 동일한 두께로 길게 연장 형성되는 스토퍼바디부(327b)로 구성된다. 이때, 스토퍼헤드부(327a)의 직경은 스토퍼바디부(327b)의 폭보다 크게 형성될 수 있다. The valve stopper 327 is composed of a stopper head portion 327a that is formed in a substantially circular shape so as to overlap the discharge valve 317 of the valve seat 310, and a stopper body portion 327b that extends and is formed to have the same thickness. In this case, the diameter of the stopper head portion 327a may be larger than the width of the stopper body portion 327b.
참고로, 스토퍼헤드부(327a) 및 스토퍼바디부(327b)는 밸브헤드부(317a) 및 밸브바디부(317b)와 유사한 모양과 크기를 가지며, 얼마든지 다양하게 변형되어 실시될 수 있다.For reference, the stopper head portion 327a and the stopper body portion 327b have shapes and sizes similar to those of the valve head portion 317a and the valve body portion 317b, and may be variously modified.
추가적으로, 스토퍼 식각홈(328)의 두께는 위치마다 다르게 형성될 수 있다. 예를 들어, 스토퍼 식각홈(328)은 스토퍼헤드부(327a)를 정의하는 제1 식각포션(328a)과, 스토퍼바디부(327b)를 정의하는 제2 식각포션(328b)을 포함한다. 이때, 제1 식각포션(328a)의 간격은 제2 식각포션(328b)의 간격보다 크게 형성될 수 있다. 다만, 이는 하나의 예시일 뿐 본 발명이 이에 한정되는 것은 아니다.In addition, the thickness of the stopper etching groove 328 may be formed differently for each position. For example, the stopper etching groove 328 may include a first etching portion 328a defining the stopper head portion 327a and a second etching portion 328b defining the stopper body portion 327b. In this case, an interval of the first etching portion 328a may be greater than an interval of the second etching portion 328b. However, this is merely an example and the present invention is not limited thereto.
토출커버(330)는 스토퍼 시트(320)의 일면에 접하고 내측에 토출 챔버(즉, 전술한 제3 공간(V3))를 형성한다.The discharge cover 330 is in contact with one surface of the stopper sheet 320 and forms a discharge chamber (that is, the third space V3 described above) inside.
토출커버(330)는 대략 원형을 갖는 토출커버 경판부(이하, 제3 경판부)(335)와, 제3 경판부(335)의 외주부에서 일측으로 돌출되는 토출커버 측벽부(이하, 제3 측벽부)(333)와, 제3 측벽부(333)의 단부에서 외측으로 돌출되는 고정부(331)를 구비한다.The discharge cover 330 is a discharge cover hard plate portion (hereinafter, the third hard plate portion) 335 having a substantially circular shape, and a discharge cover side wall portion (hereinafter, third) that protrudes to one side from the outer circumferential portion of the third hard plate portion 335. Side wall portion 333 and a fixing portion 331 protruding outward from an end of the third side wall portion 333.
제3 경판부(335)의 중앙에는 저유 공간(V4)에 잠기는 오일피더(271)가 관통하도록 관통구멍(332a)이 형성된다. 제3 경판부(335)의 하부에는 고정 스크롤(250)의 제2 축수부(252)와 결합되는 토출커버 축수부(이하, 제3 축수부)(332)가 형성된다. 제3 축수부(332)는 관통구멍(332a)의 외주면을 따라 형성될 수 있다.The through hole 332a is formed in the center of the third hard plate part 335 to allow the oil feeder 271 to be immersed in the oil storage space V4 to pass therethrough. A discharge cover bearing part (hereinafter referred to as a third bearing part) 332 coupled to the second bearing part 252 of the fixed scroll 250 is formed below the third hard plate part 335. The third bearing portion 332 may be formed along the outer circumferential surface of the through hole 332a.
제3 측벽부(333)는 토출 챔버의 크기에 따라 높이가 결정되며, 원통 쉘(211)의 내주면과 이격되도록 형성된다. 제3 측벽부(333)의 단부는 스토퍼 시트(320)의 상면에 접하도록 고정 스크롤(250) 상에 설치된다.The third side wall portion 333 has a height determined according to the size of the discharge chamber and is spaced apart from the inner circumferential surface of the cylindrical shell 211. An end portion of the third sidewall portion 333 is provided on the fixed scroll 250 to contact the upper surface of the stopper sheet 320.
고정부(331)는 제3 측벽부(333)의 단부에서 외측으로 돌출 형성되며, 제3 측벽부(333)보다 큰 지름을 갖도록 형성된다. 고정부(331)는 고정부재(340)가 관통 결합되는 적어도 하나의 제3 체결홀(334)을 포함한다. 제3 체결홀(334)은 고정 스크롤(250)의 결합홀(254a)에 대응되는 위치에 형성될 수 있다.The fixing part 331 protrudes outward from an end of the third side wall part 333 and is formed to have a diameter larger than that of the third side wall part 333. The fixing part 331 includes at least one third fastening hole 334 through which the fixing member 340 is coupled. The third fastening hole 334 may be formed at a position corresponding to the coupling hole 254a of the fixed scroll 250.
또한, 고정부(331)는 오일 유로를 형성하도록 내측으로 오목하게 형성되는 유로홈(331a)을 포함한다.In addition, the fixing part 331 includes a flow path groove 331a which is formed to be concave inward to form an oil flow path.
참고로, 제3 체결홀(334)과 유로홈(331a)의 위치와 형상은 고정 스크롤(250)의 측벽에 형성된 결합홀(254a)과 유로홈의 형상에 대응되도록 형성될 수 있다. For reference, the position and shape of the third fastening hole 334 and the flow path groove 331a may be formed to correspond to the shape of the coupling hole 254a and the flow path groove formed on the sidewall of the fixed scroll 250.
제3 축수부(332)는 고정 스크롤(250)의 제2 축수부(252)와 결합됨으로써, 토출커버(330)의 내부에 냉매가 고정 스크롤(250) 또는 오일피더(271) 사이로 누설되지 않도록 한다. The third bearing portion 332 is coupled to the second bearing portion 252 of the fixed scroll 250 such that the refrigerant does not leak between the fixed scroll 250 or the oil feeder 271 inside the discharge cover 330. do.
참고로, 제3 축수부(332)는 도면에 도시된 것과 다른 다양한 형태로 변형되어 실시될 수 있다. 예를 들어, 제3 축수부(332)는 오일피더(271)의 측벽에만 접하고, 제2 축수부(252)의 상면과는 이격되도록 형성될 수 있다. 또한, 제3 축수부(332)는 생략되어 실시될 수도 있으나, 본 발명은 이에 한정되지 않는다.For reference, the third bearing portion 332 may be modified in various forms different from those shown in the drawings. For example, the third bearing portion 332 may be formed to be in contact with only the sidewall of the oil feeder 271 and spaced apart from the upper surface of the second bearing portion 252. In addition, although the third bearing portion 332 may be omitted, the present invention is not limited thereto.
고정부재(340)는 순차적으로 적층된 밸브 시트(310), 스토퍼 시트(320) 및 토출커버(330)를 고정 스크롤(250)의 일면에 체결 및 고정시킨다.The fixing member 340 fastens and fixes the valve seat 310, the stopper seat 320, and the discharge cover 330 sequentially stacked on one surface of the fixed scroll 250.
고정 스크롤(250)의 일면 상에는 고정부재(340)와 결합 가능한 결합홀(도 7의 254a)이 형성된다. On one surface of the fixed scroll 250, a coupling hole (254a of FIG. 7) that can be coupled to the fixed member 340 is formed.
이때, 토출 밸브(317)는 고정 스크롤(250)의 결합홀(254a)에 대응되는 위치에 형성되는 제1 체결홀(314)을 포함한다. 스토퍼 시트(320)는 토출 밸브(317)의 제1 체결홀(314)에 대응되는 위치에 형성되는 제2 체결홀(324)을 포함한다. 토출커버(330)는 스토퍼 시트(320)의 제2 체결홀(324)에 대응되는 위치에 형성되는 제3 체결홀(334)을 포함한다.In this case, the discharge valve 317 includes a first fastening hole 314 formed at a position corresponding to the coupling hole 254a of the fixed scroll 250. The stopper seat 320 includes a second fastening hole 324 formed at a position corresponding to the first fastening hole 314 of the discharge valve 317. The discharge cover 330 includes a third fastening hole 334 formed at a position corresponding to the second fastening hole 324 of the stopper sheet 320.
고정부재(340)는 제1 내지 제3 체결홀(314, 324, 334)를 관통하여 고정 스크롤(250)의 결합홀(254a)에 결합된다. 예를 들어, 고정부재(340)의 단부에는 나사산이 형성되고, 결합홀(254a)의 내측에는 나사산에 대응되는 나사홈이 형성될 수 있다. 참고로, 이러한 결합 방식은 하나의 예시에 불과하고, 고정부재(340)는 다양한 결합 방식을 이용하여 고정 스크롤(250) 상에 고정될 수 있다.The fixing member 340 is coupled to the coupling hole 254a of the fixed scroll 250 by passing through the first to third fastening holes 314, 324, and 334. For example, a screw thread may be formed at an end of the fixing member 340, and a screw groove corresponding to the screw thread may be formed inside the coupling hole 254a. For reference, this coupling method is only one example, and the fixing member 340 may be fixed on the fixed scroll 250 using various coupling methods.
정리하면, 고정부재(340)는 순차적으로 적층된 밸브 시트(310), 스토퍼 시트(320) 및 토출커버(330)를 고정 스크롤(250)의 일면에 단단히 고정시킬 수 있다.In summary, the fixing member 340 may firmly fix the valve seat 310, the stopper seat 320, and the discharge cover 330 sequentially stacked on one surface of the fixed scroll 250.
이때, 제1 내지 제3 체결홀(314, 324, 334)은 밸브 시트(310), 스토퍼 시트(320), 또는 토출커버(330) 상에 각각 복수 개가 구비되고, 복수 개의 고정부재(340)에 의해 고정 스크롤(250) 상에 고정될 수 있다.In this case, a plurality of first to third fastening holes 314, 324, and 334 are provided on the valve seat 310, the stopper seat 320, or the discharge cover 330, respectively, and the plurality of fixing members 340. It can be fixed on the fixed scroll 250 by.
추가적으로, 도면에 명확히 도시하지는 않았으나, 고정부재(340)와 밸브 시트(310), 스토퍼 시트(320)와 스토퍼 시트(320), 또는 스토퍼 시트(320)와 토출커버(330)의 사이에는 접착층 또는 실링층이 형성될 수 있다. In addition, although not clearly shown in the drawings, the adhesive layer or the valve seat 310, the stopper seat 320 and the stopper seat 320, or between the stopper seat 320 and the discharge cover 330 or A sealing layer can be formed.
접착층 또는 실링층은 고정 스크롤(250) 상에서 원주 방향으로 도포되는 접착물질 또는 실링물질에 의해 형성될 수 있다.The adhesive layer or the sealing layer may be formed by an adhesive material or a sealing material applied in the circumferential direction on the fixed scroll 250.
이러한 접착층 및 실링층은 토출커버(330)의 내측에 형성되는 하부 토출 챔버(즉, 제3 공간(V3))로 토출되는 냉매가 토출커버(330)의 바깥으로 누설되는 것을 방지할 수 있다. The adhesive layer and the sealing layer may prevent the refrigerant discharged into the lower discharge chamber (that is, the third space V3) formed inside the discharge cover 330 from leaking out of the discharge cover 330.
다만, 본 발명의 다른 실시예에서 고정부재(340)는 생략되어 실시될 수 있다. 이 경우, 밸브 시트(310), 스토퍼 시트(320) 및 토출커버(330)는 다양한 체결 방식(예를 들어, 인서트 앤 락 구조)으로 고정 스크롤(250) 상에 고정될 수 있다. However, in another embodiment of the present invention, the fixing member 340 may be omitted. In this case, the valve seat 310, the stopper seat 320, and the discharge cover 330 may be fixed on the fixed scroll 250 by various fastening methods (for example, insert and lock structure).
즉, 본 발명의 스크롤 압축기(1)에서 밸브 시트(310)는 고정 스크롤(250) 상에 형성된 복수의 토출구(253)에 대응되는 복수의 토출 밸브(317)를 구비하고, 스토퍼 시트(320)는 복수의 토출 밸브(317)에 대응되는 복수의 밸브 스토퍼(327)를 구비한다.That is, in the scroll compressor 1 of the present invention, the valve seat 310 includes a plurality of discharge valves 317 corresponding to the plurality of discharge ports 253 formed on the fixed scroll 250, and the stopper seat 320. Has a plurality of valve stoppers 327 corresponding to the plurality of discharge valves 317.
또한, 토출커버(330)는 밸브 시트(310)와 스토퍼 시트(320) 상에 배치되어 하부 토출 챔버를 형성하고, 고정부재(340)는 밸브 시트(310), 스토퍼 시트(320) 및 토출커버(330)를 고정 스크롤(250) 상에 단단히 고정한다.In addition, the discharge cover 330 is disposed on the valve seat 310 and the stopper seat 320 to form a lower discharge chamber, the fixing member 340 is the valve seat 310, the stopper seat 320 and the discharge cover 330 is firmly fixed on the fixed scroll 250.
즉, 본 발명의 스크롤 압축기(1)는 밸브 시트(310), 스토퍼 시트(320) 및 토출커버(330)는 고정부재(340)에 의해 고정 스크롤(250)의 일면 상에 동시에 체결되는 동시 체결 구조를 갖는다. That is, in the scroll compressor 1 of the present invention, the valve seat 310, the stopper seat 320, and the discharge cover 330 are simultaneously fastened on one surface of the fixed scroll 250 by the fixing member 340. Has a structure.
이를 통해, 본 발명은 고정 스크롤(250)의 토출구(253) 마다 토출 밸브(317)와 밸브 스토퍼(327)를 개별로 조립해야 하는 공정을 생략할 수 있다. Through this, the present invention can omit the step of separately assembling the discharge valve 317 and the valve stopper 327 for each discharge port 253 of the fixed scroll 250.
또한, 토출 밸브(317)와 밸브 스토퍼(327)를 토출커버(330)와 함께 고정시킴으로써 토출커버(330)를 고정시키기 위한 공정도 일원화할 수 있다. Also, by fixing the discharge valve 317 and the valve stopper 327 together with the discharge cover 330, a process for fixing the discharge cover 330 may be unified.
즉, 본 발명은 밸브 시트(310), 스토퍼 시트(320) 및 토출커버(330)를 동시에 체결함으로써, 체결 구조를 단순화시켜 스크롤 압축기(1)의 제작에 필요한 처리 공정수를 감소시킬 수 있다. That is, according to the present invention, by fastening the valve seat 310, the stopper seat 320, and the discharge cover 330 at the same time, the fastening structure can be simplified to reduce the number of processing steps required for the manufacture of the scroll compressor 1.
또한, 이러한 본 발명의 공통 체결 구조는 제품 생산에 필요한 노동력, 제품 생산에 필요한 제조 시간 및 비용을 감소시킬 수 있다.In addition, the common fastening structure of the present invention can reduce the labor required for the production of the product, manufacturing time and cost required for the production of the product.
도 7은 도 1의 압축부의 구조를 설명하기 위한 단면도이다. 도 8은 도 7의 S 영역을 확대한 부분 확대도이다.7 is a cross-sectional view illustrating the structure of the compression unit of FIG. 1. FIG. 8 is an enlarged partial view of region S of FIG. 7.
도 7 및 도 8을 참조하면, 고정 스크롤(250)에 구비된 토출구(253)는 압축실(S1)과 연통된다.7 and 8, the discharge port 253 provided in the fixed scroll 250 communicates with the compression chamber S1.
토출 밸브(317)는 토출구(253)에 오버랩되도록 배치되어 토출구(253)를 개폐시킨다. 밸브 스토퍼(327)는 토출 밸브(317)의 가동 범위를 제한하도록 토출 밸브(317)의 상부에 배치된다.The discharge valve 317 is disposed to overlap the discharge port 253 to open and close the discharge port 253. The valve stopper 327 is disposed above the discharge valve 317 to limit the movable range of the discharge valve 317.
이때, 고정 스크롤(250)의 제2 경판부(254)의 상면은 밸브 시트(310)와 밀착되어 접하도록 평평하게 형성된다. 이에 따라, 제2 경판부(254)의 상면과 밸브 시트(310)의 일면은 동일 평면 상에 배치된다.At this time, the upper surface of the second hard plate portion 254 of the fixed scroll 250 is formed flat to be in close contact with the valve seat 310. Accordingly, the upper surface of the second hard plate portion 254 and one surface of the valve seat 310 are disposed on the same plane.
참고로, 본 발명의 다른 실시예에서 고정 스크롤(250)의 상면에는 오일에 의한 정지 마찰을 감소시키기 위한 단차홈 구조가 구비될 수 있다. 이에 대한 자세한 설명은 이후에서 후술하도록 한다. For reference, in another embodiment of the present invention, the top surface of the fixed scroll 250 may be provided with a stepped groove structure for reducing the static friction by oil. Detailed description thereof will be described later.
또한, 스토퍼 시트(320)의 일면은 밸브 시트(310)의 일면과 마주보는 타면에 접하도록 배치된다. 따라서, 스토퍼 시트(320)의 일면은 밸브 시트(310)의 타면과 동일 평면 상에 배치된다.In addition, one surface of the stopper seat 320 is disposed to be in contact with the other surface facing one surface of the valve seat 310. Therefore, one surface of the stopper seat 320 is disposed on the same plane as the other surface of the valve seat 310.
또한, 토출커버(330)의 고정부(331)는 스토퍼 시트(320)의 일면과 마주보는 타면에 접하도록 배치된다. 따라서, 토출커버(330)의 고정부(331)의 하면과 스토퍼 시트(320)의 타면은 동일 평면 상에 배치된다.In addition, the fixing part 331 of the discharge cover 330 is disposed to contact the other surface facing one surface of the stopper sheet 320. Therefore, the lower surface of the fixing part 331 of the discharge cover 330 and the other surface of the stopper sheet 320 are disposed on the same plane.
고정부재(340)는 순차적으로 적층된 밸브 시트(310), 스토퍼 시트(320) 및 토출커버(330)를 고정 스크롤(250)의 일면에 고정시킨다.The fixing member 340 fixes the valve seat 310, the stopper seat 320, and the discharge cover 330 sequentially stacked on one surface of the fixed scroll 250.
고정 스크롤(250)의 일면 상에는 고정부재(340)와 결합 가능한 결합홀(254a)이 형성된다. 토출 밸브(317)는 고정 스크롤(250)의 결합홀(254a)에 대응되는 위치에 형성되는 제1 체결홀(314)을 포함한다. 스토퍼 시트(320)는 토출 밸브(317)의 제1 체결홀(314)에 대응되는 위치에 형성되는 제2 체결홀(324)을 포함한다. 토출커버(330)는 스토퍼 시트(320)의 제2 체결홀(324)에 대응되는 위치에 형성되는 제3 체결홀(334)을 포함한다.On one surface of the fixed scroll 250, a coupling hole 254a that can be coupled to the fixed member 340 is formed. The discharge valve 317 includes a first fastening hole 314 formed at a position corresponding to the coupling hole 254a of the fixed scroll 250. The stopper seat 320 includes a second fastening hole 324 formed at a position corresponding to the first fastening hole 314 of the discharge valve 317. The discharge cover 330 includes a third fastening hole 334 formed at a position corresponding to the second fastening hole 324 of the stopper sheet 320.
고정부재(340)는 제1 내지 제3 체결홀(314, 324, 334)를 관통하여 고정 스크롤(250)의 결합홀(254a)에 결합된다. 이를 통해, 밸브 시트(310), 스토퍼 시트(320) 및 토출커버(330)는 고정부재(340)에 의해 고정 스크롤(250)의 일면 상에 동시에 체결 및 고정된다.The fixing member 340 is coupled to the coupling hole 254a of the fixed scroll 250 by passing through the first to third fastening holes 314, 324, and 334. Through this, the valve seat 310, the stopper seat 320, and the discharge cover 330 are simultaneously fastened and fixed on one surface of the fixed scroll 250 by the fixing member 340.
고정 스크롤(250), 밸브 시트(310), 스토퍼 시트(320) 및 토출커버(330) 사이의 결합 구조는 단순화될 수 있다. 이에 따라, 고정 스크롤(250), 밸브 시트(310), 스토퍼 시트(320) 및 토출커버(330) 사이의 결합력은 종래의 스크롤 압축기보다 견고해질 수 있다. The coupling structure between the fixed scroll 250, the valve seat 310, the stopper seat 320, and the discharge cover 330 may be simplified. Accordingly, the coupling force between the fixed scroll 250, the valve seat 310, the stopper seat 320 and the discharge cover 330 may be stronger than the conventional scroll compressor.
이를 통해 고정 스크롤(250)과 토출커버(330) 사이에 누설되는 냉매량은 감소될 수 있으며, 냉매 누설량이 감소됨에 따라 스크롤 압축기의 동작 효율과 동작 안정성은 향상될 수 있다. As a result, the amount of refrigerant leaking between the fixed scroll 250 and the discharge cover 330 may be reduced, and as the amount of refrigerant leakage is reduced, the operation efficiency and operation stability of the scroll compressor may be improved.
도 9 및 도 10은 본 발명의 다른 실시예에 따른 스크롤 압축기를 설명하기 위한 단면도이다. 이하에서는 앞에서 설명한 내용과 공통되는 내용은 생략하고 차이점을 위주로 설명하도록 한다.9 and 10 are cross-sectional views illustrating a scroll compressor according to another embodiment of the present invention. Hereinafter, the descriptions common to the above descriptions will be omitted and the differences will be described.
도 9 및 도 10을 참조하면, 본 발명의 다른 실시예에 따른 스크롤 압축기(2)에서 고정 스크롤(250)의 제2 경판부(254)는 상면에 내측으로 오목하게 식각된 단차홈(254h)을 구비한다. 또한, 제2 경판부(254)는 토출구(253)의 외주면을 따라 단차홈(254h)으로부터 돌출 형성되는 라운드부(254R)를 구비한다.9 and 10, in the scroll compressor 2 according to another exemplary embodiment of the present invention, the second hard plate portion 254 of the fixed scroll 250 may have a stepped groove 254h etched inwardly on an upper surface thereof. It is provided. In addition, the second hard plate portion 254 includes a round portion 254R which protrudes from the step groove 254h along the outer circumferential surface of the discharge port 253.
도면에 명확하게 도시되지는 않았으나, 단차홈(254h)은 토출 밸브(317)와 오버랩되는 영역 상에만 형성될 수 있다. 다만, 단차홈(254h)의 위치나 크기는 다양하게 변형되어 실시될 수 있다.Although not clearly shown in the drawing, the stepped groove 254h may be formed only on an area overlapping the discharge valve 317. However, the position or size of the stepped groove 254h may be variously modified.
이때, 토출 밸브(317)의 일단은 고정부재(340)에 의해 밸브 시트(310) 상에 고정되고, 타단은 라운드부(254R) 상에 위치하고 자유단을 이루어 토출구(253)를 개폐시킬 수 있다.At this time, one end of the discharge valve 317 is fixed on the valve seat 310 by the fixing member 340, the other end is located on the round portion 254R to form a free end to open and close the discharge port 253. .
구체적으로, 토출 밸브(317)의 일단의 하면은 제2 경판부(254)의 상면과 접할 수 있다. 토출 밸브(317)의 타단의 하면은 라운드부(254R)의 최상면(또는, 최상부의 접점)에 접할 수 있다. 토출 밸브(317)의 중앙부는 단차홈(254h)에 의해 제2 경판부(254)와 이격되도록 형성될 수 있다.Specifically, the lower surface of one end of the discharge valve 317 may contact the upper surface of the second hard plate portion 254. The lower surface of the other end of the discharge valve 317 may be in contact with the uppermost surface (or the uppermost contact point) of the round portion 254R. The center portion of the discharge valve 317 may be formed to be spaced apart from the second hard plate portion 254 by the stepped groove 254h.
이때, 라운드부(254R)의 단면이 곡선을 형성함에 따라 토출 밸브(317)와 라운드부(254R)의 접촉면적은 최소화될 수 있다. At this time, as the cross section of the round portion 254R forms a curve, the contact area between the discharge valve 317 and the round portion 254R can be minimized.
토출 밸브(317)와 라운드부(254R)의 접촉면적은 오일에 의한 정지 마찰력과 관련된다. The contact area of the discharge valve 317 and the round part 254R is related to the static frictional force by oil.
예를 들어, 토출 밸브(317)와 라운드부(254R)의 접촉면적이 큰 경우, 오일에 의한 정지 마찰력이 커지게 되는 바, 토출 밸브(317)가 열리기 시작하는 압축실의 압력이 커지되 되므로, 압축실 내에 과압축이 발생하게 된다. 이러한 과압축이 발생하는 경우, 압축기는 과압축 손실에 의하여 압축 효율이 감소될 수 있다.For example, when the contact area of the discharge valve 317 and the round part 254R is large, the static frictional force by oil becomes large, and since the pressure of the compression chamber in which the discharge valve 317 starts to open becomes large, As a result, overcompression occurs in the compression chamber. When such overcompression occurs, the compressor may be reduced in compression efficiency due to overcompression loss.
반면, 토출 밸브(317)와 라운드부(254R)의 접촉면적이 작은 경우, 오일에 의한 정지 마찰력이 감소되어 과압축 손실이 저감되고, 압축 효율이 증가될 수 있다.On the other hand, when the contact area between the discharge valve 317 and the round portion 254R is small, the static frictional force caused by the oil is reduced to reduce the overcompression loss and the compression efficiency can be increased.
토출 밸브(317) 상에는 밸브 스토퍼(327)가 배치될 수 있다.The valve stopper 327 may be disposed on the discharge valve 317.
밸브 스토퍼(327)의 일단은 스토퍼 시트(320)에 고정되고, 타단은 토출구(253)에서 멀어지도록 외측으로 굽어진 형상으로 형성될 수 있다. 밸브 스토퍼(327)의 하면의 일측은 토출 밸브(317)의 상면과 접하고, 타측은 토출 밸브(317)와 이격되도록 배치될 수 있다. One end of the valve stopper 327 may be fixed to the stopper seat 320, and the other end may be formed to be bent outwardly away from the discharge hole 253. One side of the bottom surface of the valve stopper 327 may be in contact with the top surface of the discharge valve 317, and the other side thereof may be spaced apart from the discharge valve 317.
이때, 밸브 스토퍼(327)는 토출 밸브(317)가 일정 각도 이상으로 휘어지지 않도록 토출 밸브(317)가 휘어지는 각도를 제한시켜주는 기능을 수행한다.In this case, the valve stopper 327 functions to limit the angle at which the discharge valve 317 is bent so that the discharge valve 317 is not bent above a predetermined angle.
도 10을 참조하면, 토출구(253)와 연결된 압축실의 압력이 높아지는 경우, 토출 밸브(317)는 라운드부(254R)의 상측 방향으로 힘(F)을 받게 되어, 밸브 스토퍼(327)에 가까워지도록 휘어질 수 있다.Referring to FIG. 10, when the pressure of the compression chamber connected to the discharge port 253 is increased, the discharge valve 317 receives the force F in the upward direction of the round part 254R, so that it is close to the valve stopper 327. Can be bent to lose.
이에 따라, 토출구(253)와 연결된 압축실 내에 압축된 냉매는 토출 밸브(317)와 토출구(253) 사이의 공간으로 토출되어, 토출커버(330)의 내부로 이동하게 된다.Accordingly, the refrigerant compressed in the compression chamber connected to the discharge port 253 is discharged into the space between the discharge valve 317 and the discharge port 253 to move into the discharge cover 330.
이에 따라, 본 발명의 다른 실시예에 따른 스크롤 압축기(2)는 토출 밸브(317)와 토출구(253) 사이에 발생하는 오일에 의한 정지 마찰을 감소시킴으로써 토출 밸브(317)의 정확한 동작 구현이 가능하다. Accordingly, the scroll compressor 2 according to another embodiment of the present invention can implement accurate operation of the discharge valve 317 by reducing the static friction caused by oil generated between the discharge valve 317 and the discharge port 253. Do.
따라서, 본 발명은 압축기 동작 시 과압축에 의한 손실을 저감시켜 압축기의 동작 효율을 향상시키고, 스크롤 압축기(2)의 동작 안정성을 향상시킬 수 있다. Accordingly, the present invention can reduce the loss due to overcompression during the operation of the compressor, thereby improving the operation efficiency of the compressor and improving the operation stability of the scroll compressor 2.
추가적으로, 도면에 명확하게 도시하지는 않았으나, 밸브 시트(310), 스토퍼 시트(320) 및 토출커버(330)는 일체로 형성되어 고정 스크롤(250) 상에 결합될 수 있다. 다만, 이는 하나의 예시일 뿐 본 발명이 이에 한정되는 것은 아니다.In addition, although not clearly illustrated in the drawings, the valve seat 310, the stopper seat 320, and the discharge cover 330 may be integrally formed and coupled to the fixed scroll 250. However, this is merely an example and the present invention is not limited thereto.
전술된 실시예는 모든 면에서 예시적인 것이며 한정적인 것이 아닌 것으로 이해되어야 하며, 본 발명의 범위는 전술된 상세한 설명보다는 후술될 특허청구범위에 의해 나타내어질 것이다. 그리고 후술될 특허청구범위의 의미 및 범위는 물론, 그 등가개념으로부터 도출되는 모든 변경 및 변형 가능한 형태가 본 발명의 범위에 포함되는 것으로 해석되어야 한다.It is to be understood that the foregoing embodiments are illustrative in all respects and not restrictive, the scope of the invention being indicated by the claims that follow, rather than the foregoing detailed description. And the meaning and scope of the claims to be described later, as well as all changes and modifications derived from the equivalent concept should be construed as being included in the scope of the invention.
Claims (18)
- 케이싱;Casing;상기 케이싱의 내부공간에 고정되는 메인 프레임;A main frame fixed to an inner space of the casing;상기 메인 프레임의 일측에 배치되고, 토출구가 구비되는 고정 스크롤;A fixed scroll disposed on one side of the main frame and provided with a discharge port;상기 메인 프레임과 상기 고정 스크롤 사이에 배치되고, 상기 고정 스크롤 사이에 압축실을 형성하는 선회 스크롤; A pivoting scroll disposed between the main frame and the fixed scroll and forming a compression chamber between the fixed scroll;상기 고정 스크롤의 일면 상에 배치되고, 상기 압축실과 연통되는 상기 고정 스크롤의 상기 토출구를 개폐시키는 토출 밸브를 포함하는 밸브 시트;A valve seat disposed on one surface of the fixed scroll and including a discharge valve configured to open and close the discharge port of the fixed scroll in communication with the compression chamber;상기 밸브 시트 상에 배치되고, 상기 토출 밸브의 가동 범위를 제한하는 밸브 스토퍼를 포함하는 스토퍼 시트;A stopper seat disposed on the valve seat and including a valve stopper for limiting a movable range of the discharge valve;상기 스토퍼 시트 상에 배치되는 토출커버; 및 A discharge cover disposed on the stopper sheet; And상기 밸브 시트, 상기 스토퍼 시트 및 상기 토출커버를 상기 고정 스크롤에 고정시키는 고정부재를 포함하는And a fixing member for fixing the valve seat, the stopper seat, and the discharge cover to the fixed scroll.스크롤 압축기.Scroll compressor.
- 제1 항에 있어서,According to claim 1,상기 고정 스크롤은, 일면 상에 형성되고 상기 고정부재와 결합되는 결합홀을 포함하고,The fixed scroll includes a coupling hole formed on one surface and coupled to the fixing member,상기 밸브 시트는, 상기 결합홀에 대응되는 위치에 형성되는 제1 체결홀을 포함하고,The valve seat includes a first fastening hole formed at a position corresponding to the coupling hole,상기 스토퍼 시트는, 상기 제1 체결홀에 대응되는 위치에 형성되는 제2 체결홀을 포함하고,The stopper sheet includes a second fastening hole formed at a position corresponding to the first fastening hole,상기 토출커버는, 상기 제2 체결홀에 대응되는 위치에 형성되는 제3 체결홀을 포함하고,The discharge cover includes a third fastening hole formed at a position corresponding to the second fastening hole,상기 고정부재는, 상기 제1 내지 제3 체결홀을 관통하여 상기 결합홀에 고정되는The fixing member is fixed to the coupling hole through the first to third fastening holes스크롤 압축기.Scroll compressor.
- 제1 항에 있어서,According to claim 1,상기 고정 스크롤은, 복수의 토출구를 포함하고,The fixed scroll includes a plurality of discharge ports,상기 밸브 시트는, 상기 복수의 토출구에 대응되는 위치에 형성되는 복수의 토출 밸브를 포함하고,The valve seat includes a plurality of discharge valves formed at positions corresponding to the plurality of discharge ports,상기 복수의 토출 밸브는, 상기 밸브 시트 상에서 형성된 밸브 식각홈에 의해 분리되어, 상기 밸브 시트로부터 회동 가능하게 형성되는The plurality of discharge valves are separated by a valve etching groove formed on the valve seat, and are formed to be rotatable from the valve seat.스크롤 압축기.Scroll compressor.
- 제3 항에 있어서,The method of claim 3, wherein상기 밸브 식각홈은, 상기 토출 밸브의 외주면을 따라 일정 간격으로 형성되는The valve etching grooves are formed at regular intervals along the outer circumferential surface of the discharge valve.스크롤 압축기.Scroll compressor.
- 제3 항에 있어서,The method of claim 3, wherein상기 스토퍼 시트는, 상기 복수의 토출 밸브에 대응되는 위치에 형성되는 복수의 밸브 스토퍼를 포함하고,The stopper seat includes a plurality of valve stoppers formed at positions corresponding to the plurality of discharge valves,상기 복수의 밸브 스토퍼는, 상기 스토퍼 시트 상에서 스토퍼 식각홈에 의해 형상이 정의되는The plurality of valve stoppers are defined by a stopper etch groove on the stopper seat.스크롤 압축기.Scroll compressor.
- 제5 항에 있어서,The method of claim 5,상기 밸브 스토퍼는, 단부로 갈수록 상기 스토퍼 시트의 상면으로부터 멀어지도록 상기 스토퍼 시트의 외측으로 돌출 형성되는The valve stopper is formed to protrude to the outside of the stopper seat so as to move away from the upper surface of the stopper seat toward the end스크롤 압축기.Scroll compressor.
- 제5 항에 있어서,The method of claim 5,상기 스토퍼 식각홈은, The stopper etching groove,상기 밸브 스토퍼의 헤드부의 외주면을 따라 제1 간격으로 형성되는 제1 식각포션과,First etching portions formed at first intervals along an outer circumferential surface of the head of the valve stopper;상기 밸브 스토퍼의 바디부의 외주면을 따라 상기 제1 간격과 다른 제2 간격으로 형성되는 제2 식각포션으로 구성되는The second etching portion is formed along the outer circumferential surface of the body of the valve stopper at a second interval different from the first interval.스크롤 압축기.Scroll compressor.
- 제1 항에 있어서,According to claim 1,상기 고정 스크롤은, The fixed scroll,상기 토출 밸브와 오버랩되는 영역에서 내측으로 단차를 갖도록 형성되는 단차홈과, A stepped groove formed to have a step inward in an area overlapping with the discharge valve;상기 토출구의 외주면을 따라 상기 단차홈으로부터 돌출 형성되는 라운드부를 포함하는It includes a round portion protruding from the step groove along the outer peripheral surface of the discharge port스크롤 압축기.Scroll compressor.
- 제1 항에 있어서,According to claim 1,상기 고정 스크롤의 일면은, 상기 밸브 시트의 일면과 동일 평면 상에 배치되도록 형성되고,One surface of the fixed scroll is formed to be disposed on the same plane as one surface of the valve seat,상기 밸브 시트의 타면은, 상기 스토퍼 시트의 일면과 접하도록 동일 평면 상에 배치되며,The other surface of the valve seat is disposed on the same plane to contact one surface of the stopper seat,상기 토출커버의 고정부의 하면은, 상기 스토퍼 시트의 타면과 접하도록 동일 평면 상에 배치되는The lower surface of the fixing part of the discharge cover is disposed on the same plane to contact the other surface of the stopper sheet.스크롤 압축기.Scroll compressor.
- 제1 항에 있어서,According to claim 1,상기 밸브 시트는, 상기 고정 스크롤의 축수부에 결합 가능한 형상으로 형성되는 제1 관통구를 포함하고,The valve seat includes a first through hole formed in a shape that can be coupled to the bearing portion of the fixed scroll,상기 스토퍼 시트는, 상기 고정 스크롤의 축수부에 결합 가능한 형상으로 형성되는 제2 관통구를 포함하고,The stopper sheet includes a second through hole formed in a shape that can be coupled to the bearing portion of the fixed scroll,상기 토출커버는, 상기 고정 스크롤의 축수부의 상부와 결합되는 토출커버 축수부를 포함하는The discharge cover includes a discharge cover bearing portion coupled to an upper portion of the bearing portion of the fixed scroll.스크롤 압축기.Scroll compressor.
- 제1 항에 있어서,According to claim 1,상기 밸브 시트는, 동일 두께로 형성되며, 상기 스토퍼 시트와 서로 다른 두께로 형성되는The valve seat is formed to the same thickness, and formed with a different thickness than the stopper seat스크롤 압축기.Scroll compressor.
- 제1 항에 있어서,According to claim 1,상기 고정 스크롤과 상기 선회 스크롤은, 각각 상기 케이싱의 내부공간과 연통되는 냉매유로를 형성하는 토출공을 포함하고, The fixed scroll and the swing scroll each include a discharge hole for forming a refrigerant flow passage in communication with the inner space of the casing,상기 토출커버는, 상기 압축실에서 상기 토출구를 통해 토출된 냉매가 상기 토출공을 통해 냉매유로로 가이드 되도록 상기 고정 스크롤 상에 밀폐공간을 형성하는The discharge cover forms a closed space on the fixed scroll such that the refrigerant discharged through the discharge port in the compression chamber is guided to the refrigerant flow path through the discharge hole.스크롤 압축기.Scroll compressor.
- 케이싱;Casing;상기 케이싱의 내부에 고정되는 고정자와 상기 고정자의 내부에 회전 가능하게 설치되는 회전자를 구비하는 구동 모터;A drive motor having a stator fixed in the casing and a rotor rotatably installed in the stator;상기 회전자에 결합되어 상기 회전자와 함께 회전하는 회전축; A rotating shaft coupled to the rotor to rotate together with the rotor;상기 회전축을 따라 설치되고, 상기 구동 모터의 하부에 구비되는 메인 프레임;A main frame installed along the rotation shaft and provided below the drive motor;상기 회전축을 따라 상기 메인 프레임의 하부에 설치되고, 토출구를 구비하는 고정 스크롤;A fixed scroll disposed below the main frame along the rotation axis and having a discharge port;상기 메인 프레임과 상기 고정 스크롤 사이에 구비되고, 상기 회전축이 편심지게 결합되며, 상기 고정 스크롤과 압축실을 형성하도록 상기 고정 스크롤에 맞물려 선회 운동하는 선회 스크롤; A rotating scroll provided between the main frame and the fixed scroll, the rotating shaft being eccentrically coupled, and pivoting to engage the fixed scroll to form the fixed scroll and the compression chamber;상기 고정 스크롤의 하면에 결합되고, 상기 압축실과 연통되는 상기 고정 스크롤의 상기 토출구를 개폐시키는 토출 밸브를 포함하는 밸브 시트;A valve seat coupled to a lower surface of the fixed scroll and including a discharge valve for opening and closing the discharge port of the fixed scroll in communication with the compression chamber;상기 밸브 시트의 하면에 결합되고, 상기 토출 밸브의 가동 범위를 제한하는 밸브 스토퍼를 포함하는 스토퍼 시트; 및A stopper seat coupled to a bottom surface of the valve seat and including a valve stopper for limiting a movable range of the discharge valve; And상기 스토퍼 시트의 하면에 결합되고, 상기 토출구를 통해 토출된 냉매를 상기 케이싱의 상부와 연결된 토출공으로 가이드하는 토출커버를 포함하는A discharge cover coupled to a lower surface of the stopper sheet and configured to guide the refrigerant discharged through the discharge port to discharge holes connected to an upper portion of the casing;스크롤 압축기.Scroll compressor.
- 제13 항에 있어서,The method of claim 13,상기 고정 스크롤은, 하면에 형성되는 결합홀을 포함하고,The fixed scroll includes a coupling hole formed in the lower surface,상기 밸브 시트는, 상기 결합홀에 대응되는 위치에 형성되는 제1 체결홀을 포함하고,The valve seat includes a first fastening hole formed at a position corresponding to the coupling hole,상기 스토퍼 시트는, 상기 제1 체결홀에 대응되는 위치에 형성되는 제2 체결홀을 포함하고,The stopper sheet includes a second fastening hole formed at a position corresponding to the first fastening hole,상기 토출커버는, 상기 제2 체결홀에 대응되는 위치에 형성되는 제3 체결홀을 포함하고,The discharge cover includes a third fastening hole formed at a position corresponding to the second fastening hole,상기 제1 내지 제3 체결홀을 관통하여 상기 결합홀에 고정되는 고정부재를 더 포함하는Further comprising a fixing member fixed to the coupling hole through the first to third fastening holes스크롤 압축기.Scroll compressor.
- 제13 항에 있어서,The method of claim 13,상기 고정 스크롤은, 복수의 토출구를 포함하고,The fixed scroll includes a plurality of discharge ports,상기 밸브 시트는, 상기 복수의 토출구에 대응되는 위치에 형성되는 복수의 토출 밸브를 포함하고,The valve seat includes a plurality of discharge valves formed at positions corresponding to the plurality of discharge ports,상기 복수의 토출 밸브는, 상기 밸브 시트 상에서 형성된 밸브 식각홈에 의해 분리되어, 상기 밸브 시트로부터 회동 가능하게 형성되는The plurality of discharge valves are separated by a valve etching groove formed on the valve seat, and are formed to be rotatable from the valve seat.스크롤 압축기.Scroll compressor.
- 제15 항에 있어서,The method of claim 15,상기 스토퍼 시트는, 상기 복수의 토출 밸브에 대응되는 위치에 형성되는 복수의 밸브 스토퍼를 포함하고,The stopper seat includes a plurality of valve stoppers formed at positions corresponding to the plurality of discharge valves,상기 복수의 밸브 스토퍼는, 상기 스토퍼 시트 상에서 스토퍼 식각홈에 의해 형상이 정의되는The plurality of valve stoppers are defined by a stopper etch groove on the stopper seat.스크롤 압축기.Scroll compressor.
- 제13 항에 있어서,The method of claim 13,상기 고정 스크롤은, The fixed scroll,상기 토출 밸브와 오버랩되는 영역에서 내측으로 단차를 갖도록 형성되는 단차홈과, A stepped groove formed to have a step inward in an area overlapping with the discharge valve;상기 토출구의 외주면을 따라 상기 단차홈으로부터 돌출 형성되는 라운드부를 포함하는It includes a round portion protruding from the step groove along the outer peripheral surface of the discharge port스크롤 압축기.Scroll compressor.
- 제13 항에 있어서,The method of claim 13,상기 밸브 시트는, 상기 고정 스크롤의 축수부에 결합 가능한 형상으로 형성되는 제1 관통구를 포함하고,The valve seat includes a first through hole formed in a shape that can be coupled to the bearing portion of the fixed scroll,상기 스토퍼 시트는, 상기 고정 스크롤의 축수부에 결합 가능한 형상으로 형성되는 제2 관통구를 포함하고,The stopper sheet includes a second through hole formed in a shape that can be coupled to the bearing portion of the fixed scroll,상기 토출커버는, 상기 고정 스크롤의 축수부의 상부와 결합되는 토출커버 축수부를 포함하는The discharge cover includes a discharge cover bearing portion coupled to an upper portion of the bearing portion of the fixed scroll.스크롤 압축기.Scroll compressor.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020180056616A KR102589293B1 (en) | 2018-05-17 | 2018-05-17 | Compressor having one piece-type valve sheet and stopper sheet |
KR10-2018-0056616 | 2018-05-17 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2019221400A1 true WO2019221400A1 (en) | 2019-11-21 |
Family
ID=68540452
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/KR2019/004591 WO2019221400A1 (en) | 2018-05-17 | 2019-04-16 | Compressor having integrated valve seat and stopper seat |
Country Status (2)
Country | Link |
---|---|
KR (1) | KR102589293B1 (en) |
WO (1) | WO2019221400A1 (en) |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH11141474A (en) * | 1997-11-06 | 1999-05-25 | Zexel:Kk | Valve structure of scroll type compressor |
KR20040026214A (en) * | 2002-09-23 | 2004-03-30 | 엘지전자 주식회사 | Valve damping apparatus scroll compressor |
KR20060074489A (en) * | 2004-12-27 | 2006-07-03 | 엘지전자 주식회사 | Single unit valve assembly of scroll compressor |
JP2014222060A (en) * | 2013-05-14 | 2014-11-27 | 三菱電機株式会社 | Refrigerant compression device |
KR20160020190A (en) * | 2014-08-13 | 2016-02-23 | 엘지전자 주식회사 | Scroll compressor |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20120133205A (en) * | 2011-05-31 | 2012-12-10 | 한라공조주식회사 | Compressor |
JP5831613B2 (en) * | 2013-11-01 | 2015-12-09 | ダイキン工業株式会社 | Compressor |
-
2018
- 2018-05-17 KR KR1020180056616A patent/KR102589293B1/en active IP Right Grant
-
2019
- 2019-04-16 WO PCT/KR2019/004591 patent/WO2019221400A1/en active Application Filing
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH11141474A (en) * | 1997-11-06 | 1999-05-25 | Zexel:Kk | Valve structure of scroll type compressor |
KR20040026214A (en) * | 2002-09-23 | 2004-03-30 | 엘지전자 주식회사 | Valve damping apparatus scroll compressor |
KR20060074489A (en) * | 2004-12-27 | 2006-07-03 | 엘지전자 주식회사 | Single unit valve assembly of scroll compressor |
JP2014222060A (en) * | 2013-05-14 | 2014-11-27 | 三菱電機株式会社 | Refrigerant compression device |
KR20160020190A (en) * | 2014-08-13 | 2016-02-23 | 엘지전자 주식회사 | Scroll compressor |
Also Published As
Publication number | Publication date |
---|---|
KR20190131786A (en) | 2019-11-27 |
KR102589293B1 (en) | 2023-10-12 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
WO2018208023A1 (en) | Scroll compressor | |
EP3824186A1 (en) | Scroll compressor | |
WO2018164393A1 (en) | Scroll compressor | |
WO2018208024A1 (en) | Scroll compressor | |
WO2017175945A1 (en) | Motor-operated compressor | |
WO2017026744A1 (en) | Compressor | |
WO2021015429A1 (en) | Scroll compressor | |
WO2021015392A1 (en) | Scroll compressor | |
WO2021194154A1 (en) | Scroll compressor | |
WO2017188575A1 (en) | Scroll compressor | |
WO2014123325A1 (en) | Vane rotary compressor | |
WO2019221400A1 (en) | Compressor having integrated valve seat and stopper seat | |
WO2021040271A1 (en) | Scroll compressor | |
WO2020116781A1 (en) | High-pressure scroll compressor | |
WO2021215652A1 (en) | Compressor | |
WO2018190544A1 (en) | Scroll compressor | |
WO2024034741A1 (en) | Scroll compressor | |
WO2021215651A1 (en) | Compressor | |
WO2023204354A1 (en) | Scroll compressor | |
WO2022019420A1 (en) | Rotary compressor | |
WO2022211331A1 (en) | Rotary compressor | |
WO2024106793A1 (en) | Rotary compressor having flat muffler | |
WO2024025159A1 (en) | Scroll compressor | |
WO2018174449A1 (en) | Hermetic compressor | |
WO2018199488A1 (en) | Scroll compressor |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 19802900 Country of ref document: EP Kind code of ref document: A1 |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 19802900 Country of ref document: EP Kind code of ref document: A1 |