CN1906414A - Hermetic compressor - Google Patents
Hermetic compressor Download PDFInfo
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- CN1906414A CN1906414A CNA2005800018540A CN200580001854A CN1906414A CN 1906414 A CN1906414 A CN 1906414A CN A2005800018540 A CNA2005800018540 A CN A2005800018540A CN 200580001854 A CN200580001854 A CN 200580001854A CN 1906414 A CN1906414 A CN 1906414A
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- Prior art keywords
- reed
- discharge
- valve seat
- base
- valve
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/02—Lubrication
- F04B39/0223—Lubrication characterised by the compressor type
- F04B39/023—Hermetic compressors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/0005—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00 adaptations of pistons
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/0027—Pulsation and noise damping means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/10—Adaptations or arrangements of distribution members
- F04B39/1066—Valve plates
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/10—Adaptations or arrangements of distribution members
- F04B39/1073—Adaptations or arrangements of distribution members the members being reed valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/12—Casings; Cylinders; Cylinder heads; Fluid connections
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F1/00—Springs
- F16F1/02—Springs made of steel or other material having low internal friction; Wound, torsion, leaf, cup, ring or the like springs, the material of the spring not being relevant
- F16F1/18—Leaf springs
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B31/00—Compressor arrangements
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2210/00—Working fluid
- F05B2210/10—Kind or type
- F05B2210/14—Refrigerants with particular properties, e.g. HFC-134a
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2260/00—Function
- F05B2260/96—Preventing, counteracting or reducing vibration or noise
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S251/00—Valves and valve actuation
- Y10S251/902—Springs employed as valves
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S417/00—Pumps
- Y10S417/902—Hermetically sealed motor pump unit
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Compressor (AREA)
Abstract
A hermetic compressor including a discharge valve system in a cylinder. Discharge valve system (114) includes discharge reed (127) having opening/closing portion (132) and discharge reed holding portion (131), spring reed (128) having movable portion (134) and spring reed holding portion (133), and stopper (129) having regulation portion (138) and stopper holding portion (137). Discharge reed (127), spring reed (128) and stopper (129) are fixed in this order to pedestal (125) of valve plate (113). At spring reed bending portion (135) provided in movable portion (134), movable portion (134) is bent toward the direction of valve seat (124) and tip portion (136) is brought into contact with plate contact portion (126). Space is provided between movable portion (134) of spring reed (128) and opening/closing portion (132) of discharge reed (127), and both are not brought into close contact with each other. Thus, delay in closing discharge reed (127) can be prevented. As a result, since it is possible to prevent discharge reed (127) and spring reed (128) from being brought into close contact with each other, the deterioration of the refrigerating capacity can be suppressed and high efficiency can be achieved.
Description
Technical field
The present invention relates to use the hermetic compressor on refrigerator with refrigerator etc.
Background technique
As traditional hermetic compressor, for example publication No. is that the pending trial Japan Patent of 2002-195160 has disclosed a kind of compressor that is equipped with the expulsion valve system, and it reduces the noise of run duration and improve energy efficiency by reduce loss when switch is discharged reed.
Hereinafter, with reference to description of drawings a kind of traditional hermetic compressor.
Fig. 7 and Fig. 8 have shown a kind of cross sectional view and plane view of traditional hermetic compressor respectively.Fig. 9 and Figure 10 have shown a kind of side sectional view and exploded view of expulsion valve system of conventional hermetic-type compressor respectively.
In Fig. 7 to 10, seal container 1 comprises discharge tube 2 and the suction pipe 3 that is connected in the cooling system (not shown).In addition, seal container 1 is in its bottom store oil 4, holds the engine unit 7 be made up of stator 5 and rotor 6 and by engine unit 7 compressor driven unit 8.The inside of seal container 1 is full of refrigeration agent 9.
Next, the main structure of compressor unit 8 is described.
Next, with reference to Fig. 9 the discharge discharge valve system 14 that provides in the compressor unit 8 is described.
Discharging reed 26 is made of the ligulate flaky elastic material.Discharge reed 26 and comprise discharge reed retaining part 30 that is fixed in base 25 and the ON/OFF part 31 that is used for switch valve seat 24.
The moveable part 33 of elastic spring 27 is adjusted by the bend angle of adjusting curved section 34, in order between the ON/OFF part 31 of moveable part 33 and discharge reed 26, and has predetermined space between the adjusting part 36 of moveable part 33 and break 28.
The operation of the hermetic compressor of said structure is described hereinafter.
When electric current supply engine unit 7, rotor 6 rotations and bent axle 17 are driven in rotation.At this moment, the off-centre of eccentric shaft 19 rotatablely moves and is sent to piston 20 by connecting rod 21, thus piston 20 to-and-fro motion in pressing chamber 11.
Be accompanied by the to-and-fro motion of piston 20, the refrigeration agent 9 in the seal container 1 is sucked pressing chamber 11 from suction muffler 16 and simultaneously, low pressure refrigerant 9 flows to seal container 1 by suction pipe 3 from the cooling system (not shown).The refrigeration agent 9 that is inhaled into pressing chamber 11 is compressed then arranges head 15 by the expulsion valve system 14 of valve disc 13.In addition, flow to the pressurized gas of head 15 from discharge tube 2 row's system cooling system (not shown).
But it is that refrigerating capacity and efficient change easily that a problem is arranged in traditional hermetic compressor.
Summary of the invention
The present invention relates to a kind of hermetic compressor with cylinder of expulsion valve system.The expulsion valve system comprises the discharge reed that has the ON/OFF part and discharge the reed retaining part; Elastic spring with moveable part and elastic spring retaining part; With break with the part of regulating and break retaining part.Discharge reed, elastic spring and break are fixed on the base of valve disc in proper order with this.Be provided with the elastic spring curved section on moveable part, moveable part is towards the direction bending of valve seat.The end of moveable part can be realized and be coiled contact segment and contact.At the moveable part of elastic spring with discharge between the ON/OFF part of reed and be provided with the space, thus tight contact that these two-part can be not mutual with the fry dried food ingredients looks, thus stoped the delay of closing of discharging reed.In addition, because the distance in space is stabilized in the state that the contact disc contact segment is realized in the end, so obtained the effect of the elastic performance of stable expulsion valve system.
Hermetic compressor of the present invention can stop discharges reed and the tight mutually elastic performance that contacts and can stablize the expulsion valve system of elastic spring realization.Therefore, the present invention can provide a kind of stable hermetic compressor with energy-efficient.
Description of drawings
Fig. 1 is the cross sectional view according to the hermetic compressor of exemplary embodiment of the present invention.
Fig. 2 is the plane view according to the hermetic compressor of exemplary embodiment of the present invention.
Fig. 3 is the side sectional view of expulsion valve system when closing according to exemplary embodiment of the present invention.
Fig. 4 is the exploded view according to the expulsion valve system of exemplary embodiment of the present invention.
Fig. 5 is the side sectional view of expulsion valve system when opening according to exemplary embodiment of the present invention.
Fig. 6 is the elastic performance plotted curve according to the expulsion valve system of exemplary embodiment of the present invention.
Fig. 7 is traditional hermetic compressor cross sectional view.
Fig. 8 is the plane view of traditional hermetic compressor.
Fig. 9 is the side sectional view of the expulsion valve system of traditional hermetic compressor.
Figure 10 is the exploded view of the expulsion valve system of traditional hermetic compressor.
Embodiment
Inventor of the present invention finds that in traditional hermetic compressor, definite says so after hermetic compressor brings into operation, and a phenomenon takes place sometimes: the refrigerating capacity lower than normal refrigerating capacity continues the long relatively time.Inventor of the present invention can illustrate the mechanical structure of discharging reed 26 and elastic spring 27 by the operation of analyzing it.Therefore, at first with reference to Fig. 7 to 10 explanation mechanical structure.In Fig. 9, close the direction indication of the direction of discharge reed by " inflow " cylinder 10, open the direction indication of the direction of discharge reed by " outflow " cylinder 10.
When hermetic compressor started, this low refrigerating capacity phenomenon took place easily, and oil 4 and refrigeration agent 9 return from a refrigeration cycle (not shown).Then, because oil 4 and refrigeration agent 9 are compressed and discharge, a lot of oil 4 are between discharging between reed 26 and the elastic spring 27.
In addition, generally, when hermetic compressor brings into operation, the suction pressure height, highdensity relatively refrigeration agent 9 is compressed and discharges, and the pressure in seal container 1 reduces, and heavy load is applied in the ON/OFF part 31 of discharging reed 26.On the other hand, because discharging the displacement of the ON/OFF part 31 of reed 26 is regulated by the adjusting part 36 of break 28, the ON/OFF part 31 of discharging reed 26 is by moveable part 33 firm push down of highdensity refrigeration agent 9 towards elastic spring 27, and the moveable part 33 of elastic spring 27 is arranged between the adjusting part 36 of the ON/OFF part 31 of discharging reed 26 and break 28.
As above-mentioned,, discharge the ON/OFF part 31 of reed 26 and the moveable part 33 of elastic spring 27 and realize closely contacting mutually by oil 4 owing to applied big pressure load.That is, discharge reed 26 and elastic spring 27 by mutual integrator and realization on/off operation, just as a sheet of discharging reed is realized on/off operation.
At this, the moveable part 33 of elastic spring 27 is opened direction (" outflow " direction) bending at curved section 34 towards what discharge reed 26.The result is, the elastic force of elastic spring 27 with discharge relative the opening on the direction (" outflow " direction) of reed 26 pent closing directions (" inflows " direction), so discharge reed 26 be pulled to open direction (" outflow " direction) thus prolonged the time of closing.
As a result, when piston 20 moved to the induction stroke of after top dead center in pressing chamber 11, the time of opening of discharging reed 26 was longer.During this period of time, in the inside of pressing chamber 11, high-pressure refrigerant refluxes and the substantial displacement amount of piston reduces.Thereby, low refrigerating capacity phenomenon takes place.
Between this low refrigerating capacity phenomenon emergence period, the performance of hermetic compressor is poor.Thereby when having increased energy consumption, the cooling that is installed in the refrigeration plant on this hermetic compressor is slowed down.
In addition, because at the moveable part 33 of elastic spring 27 with to discharge space between the ON/OFF part 31 of reed 26 be that the bend angle of the curved section 34 by adjusting elastic spring 27 is adjusted, therefore change easily at the moveable part 33 of elastic spring 27 and the space of discharging between the ON/OFF part 31 of reed 26.When discharge reed 26 was opened, displacement changed easily, realized contacting with elastic spring 27 up to discharging reed 26.That is, a deformation point, the elastic force of discharging reed 26 at this some place changes the synthetic elastic force of discharging reed 26 and elastic spring 27 into, changes, thereby causes the change of elastic performance.
Therefore, can think that the endurance of discharging the amount of opening of reed 26 and closing changes easily, so that refrigerating capacity and efficient can change.
The present invention is based on the explanation of the mechanical device of low refrigerating capacity phenomenon above-mentioned and makes, and the invention provides a kind of stable hermetic compressor that closing of reed postpones to be not easy to take place and energy efficiency is high of discharging.
Hermetic compressor of the present invention is included in the valve disc that the cylinder outside has the expulsion valve system.The expulsion valve system comprises the tap hole that is formed on the valve disc; Be arranged on the valve seat of the valve disc outside around tap hole; Be formed on the valve disc outside, the basic base identical with the valve seat height; Be formed on the valve seat, the dish contact segment of the position higher than the valve seat in the outside of valve disc; Cover the discharge reed of the ON/OFF part that can open and close tap hole on the tap hole by having of making of flaky elastic material; Outside discharging reed, be provided with the elastic spring of making by flaky elastic material; With break in the arranged outside of elastic spring.Elastic spring has elastic spring curved section and the end in moveable part (tip).In the elastic spring curved section, elastic spring crooked and its end can be realized and coil contact segment and contact towards the direction of valve seat.
Even at oil between discharging between reed and the elastic spring, and when starting, cross multi-load be applied to discharge reed first-class in, because with the position of discharging reed ON/OFF partial correlation on formed about discharging the space of reed, can stop owing to get involved the tight contact that oil produces.In addition, because being stabilized in, the distance in space realizes and dish contact segment position contacting, so can stablize the elastic performance of expulsion valve system.Thereby, a kind of stable hermetic compressor with energy-efficient can be provided.
Hereinafter, with reference to description of drawings one exemplary embodiment of the present invention.
(exemplary embodiment)
Fig. 1 and Fig. 2 are respectively according to the cross sectional view of the hermetic compressor of exemplary embodiment of the present invention and plane view.Fig. 3 is when the side sectional view of discharge discharge valve system when closing according to exemplary embodiment of the present invention; Fig. 4 is the exploded view of discharging the discharge valve system; Fig. 5 is when discharging the side sectional view of discharge valve system when opening; And Fig. 6 is the elastic performance plotted curve of discharging the discharge valve system.In Fig. 1 and 2, close the direction of discharging reed by the direction indication of " inflows " cylinder and open the direction indication of the direction of discharge reed by " outflow " cylinder.
In Fig. 1 to 6, seal container 101 comprises discharge tube 102 and the suction pipe 103 that is connected in the cooling system (not shown), and in its bottom store oil 104.In addition, seal container 101 holds the engine unit 107 be made up of stator 105 and rotor 106 and by engine unit 107 compressor driven unit 108.Be full of refrigeration agent 109 in the inside of seal container 101.The refrigeration agent 109 that uses is preferably the refrigeration agent of the environmental problem standard that meets in recent years, and the chloro-fluoro-hydrocarbons except stipulating.For example, R134a, natural refrigerant R600a, and analog is preferred refrigeration agent 109.
Next, the main structure of compressor unit 108 is described.
Cylinder 110 comprises it being columniform pressing chamber 111 and bearing 112 basically.Valve disc 113 is in the outside of cylinder 110 (" outflow " side), has expulsion valve system 114 and is used for closes compression chamber 111.Head 115 covers valve disc 113.One end of suction muffler 116 is opened in seal container 101, and the other end is communicated with pressing chamber 111.Bent axle 117 has main shaft 118 and eccentric shaft 119, and its bearing 112 by cylinder 110 supports, and by press fit and fixed into stator 105.Piston 120 is inserted in the pressing chamber 111 and by connecting rod 121 in the mode that can reciprocatingly slide and is connected in eccentric shaft 119.
Next, with reference to Fig. 3 the expulsion valve system 114 that provides on the compressor unit 108 is described.
Valve disc 113 has groove (recess) 122 in the outside of cylinder 110 (" outflow " side).Groove 122 is provided with and penetrates valve disc 113 and the tap hole 123 that is communicated with cylinder 110 and around the valve seat 124 of tap hole 123.Valve disc 113 also be provided with have be formed at " outflow " side, basically with valve seat 124 on same level base 125 and the dish contact segment 126.The dish contact segment 126 in viewgraph of cross-section basically with the plane parallel that comprises valve seat 124 and base 125.
Elastic spring (as second reed) 128 is made of the ligulate flaky elastic material and comprises elastic spring retaining part 133 and the moveable part 134 that is fixed in base 125.Moveable part 134 is towards direction (" inflow " direction) bending that is arranged on the valve seat 124 at elastic spring curved section 135 places on the moveable part 134.The dish contact segment 126 of contact valve disc is realized in end 136.
Be arranged on the height of the dish contact segment 126 on the valve disc 113, make the moveable part 134 of elastic spring 128 stably have the space between the ON/OFF part 132 of moveable part 134 and discharge reed 127 and between the adjusting part 138 of moveable part 134 and break 129.
The ON/OFF part 132 of discharging reed 127 is towards the direction bending at the valve seat 124 of discharging reed curved section 139 places.
Between valve seat 124 and base 125, be set to remove groove 140 than base 125 dark parts.Discharge reed curved section 139 and be positioned at removing groove 140 zones in removing groove 140 outsides.That is, the recessed portion that forms on the surface of valve disc 113 has formed removing groove 140, and the height of the lower surface of recessed portion is lower than valve seat 124 and base 125.
The adjusting part 138 of break 129 is arranged on the end towards the formed break contact segment 141 of elastic spring 128 curved surfaces.Break contact segment 141 is arranged essentially parallel to the plane that comprises valve seat 124 and base 125.That is, break contact segment 141 is arranged essentially parallel to dish contact segment 126.
The operation and the effect of the hermetic compressor of said structure are described hereinafter.
When supply engine unit 107 electric currents, rotor 106 rotations and bent axle 117 are driven in rotation.At this moment, the off-centre of eccentric shaft 119 rotatablely moves and is passed to piston 120 by connecting rod 121, thus piston 120 to-and-fro motion in pressing chamber 111.
Along with the to-and-fro motion of piston 120, the refrigeration agent 109 in seal container 101 is sucked in the pressing chamber 111 from suction muffler 116 and simultaneously, low pressure refrigerant 109 flows to seal container 101 by suction pipe 103 from the cooling system (not shown).The refrigeration agent 109 that is inhaled into pressing chamber 111 is compressed then arranges head 115 by the expulsion valve system 114 of valve disc 113.In addition, the pressurized gas that are drained into head 115 advance the cooling system (not shown) from discharge tube 102 rows.
Here, when hermetic compressor started, oil 104 and refrigeration agent 109 returned in a refrigeration cycle (not shown).Then, because oil 104 and refrigeration agent 109 are compressed and discharge, a lot of oil 104 are between discharging between reed 127 and the elastic spring 128.
In addition, generally, when hermetic compressor brings into operation, suck and press height.Therefore, have highdensity relatively refrigeration agent 109 and be compressed and discharge, the pressure in seal container 1 reduces, and heavy load is applied to the ON/OFF part 132 of discharging reed 127.
On the other hand, regulated by the adjusting part 138 of break 129 because discharge the position of the ON/OFF part 132 of reed 127, the ON/OFF part 132 of discharging reed 127 is by moveable part 134 firm the pushing down of the elastic spring 128 of highdensity refrigeration agent 109 between the adjusting part 138 of ON/OFF part 132 that is arranged on discharge reed 127 and break 129.As a result, discharging the ON/OFF part 132 of reed 127 and the moveable part 134 of elastic spring 128 tends to realize closely contacting mutually in company with oil 104.
But, in first not routine property embodiment, because elastic spring curved section 135 is formed on the moveable part 134 of elastic spring 128, when even elastic spring 128 is pressed towards " outflow " side, between the moveable part 134 of ON/OFF part 132 of discharging reed 127 and elastic spring 128, as shown in Figure 5, also formed space 142.Owing to there is space 142, even the moveable part 134 of elastic spring 128 is realized closely contacting mutually with the ON/OFF part 132 of discharging reed 127, they also can easily break away from mutually.That is, closely contact is not continued and elastic spring 128 and discharge not overall operation of reed 127.Therefore, can stop and close delay.
The result is, can stop by the high-pressure refrigerant low refrigerating capacity phenomenon that pressing chamber 111 into causes that refluxes.
When elastic spring 128 was not pressed towards " outflow " side, as shown in Figure 3, the dish contact segment 126 that is provided with on the end 136 of elastic spring 128 and realization and the valve disc 113 contacted.Therefore, the moveable part 134 of elastic spring 128 can stably have the space between the ON/OFF part 132 of moveable part 134 and discharge reed 127.When discharging reed 127 in " outflows " when direction is opened, the position is stable, contacts with elastic spring 128 up to its realization.That is, the elastic force that suppresses discharge reed 127 changes the variation at the deformation point place of the synthetic elastic force of discharging reed 127 and elastic spring 128 into, is possible thereby stablize elastic performance.
As a result, suppressed to discharge the amount of opening of reed 127 and the variation of shut-in time, thereby may stablize refrigerating capacity and efficient.
Therefore, it is possible providing a kind of stable hermetic compressor with little variation and energy-efficient.
In addition, discharging reed curved section 139 places towards valve seat 124 bendings because discharge the ON/OFF part 132 of reed 127, so the elastic force that is pressed onto on the valve seat 124 is applied to the ON/OFF part 132 of discharging reed 127.
Therefore, can stop the ON/OFF part 132 of discharging reed 127 on valve seat 124, to be floated, thereby may keep better sealability.Therefore, provide a kind of and have more that the hermetic compressor of energy-efficient is possible.
In addition, between valve seat 124 and base 125, be removing groove 140 than base 125 dark groove parts.Because discharge the outside that reed curved section 139 is positioned at corresponding removing groove 140, may stop the elastic force of base 125 and elastic spring 128 to press removing groove 140.The result is, the ON/OFF part 132 that can stably obtain to discharge reed 127 is forced into the power on the valve seat 124.Sealing between ON/OFF part 132 and the valve seat 124 is enhanced.Thereby, may further raise the efficiency.
In addition, according to exemplary embodiment, provide break contact segment 141 on the adjusting part 138 of break 129 towards elastic spring 128 bendings.Therefore, even after elastic spring 128 contact break contact segments 141, discharge reed 127 and also can further be set up.The result is that the resilient property of discharging reed 127 has two deformation points, as shown in Figure 6, can obtain three sections attributes.
In Fig. 6, the first deformation point P1 realizes the point that contacts with the moveable part 134 of elastic spring 128 corresponding to the ON/OFF part 132 of reed 127.Behind the first deformation point P1 and before the second deformation point P2, can obtain the ON/OFF part 132 of elastic spring 127 and the synthetic elastic force of the moveable part 134 of elastic spring 128.
The second deformation point P2 realizes the point of the break contact segment 141 of contact break 129 corresponding to the moveable part 134 of elastic spring 128.After the second deformation point P2, the supporting mechanism of elastic spring is changed into 2 support types from cantilever style, so further increased elastic force.
As mentioned above, because obtained two deformation points and three sections characteristics, along with the quantitative change of opening of discharging reed 127 gets greatlyyer, the stronger and closing velocity of elastic force increases.Therefore, even open very big high race way discharging reed 127, it is also rare to close delay.A kind of dynamical hermetic compressor that has can be provided.
Industrial usability
As mentioned above, even can providing a kind of, the present invention in the relatively big situation of kind of refrigeration cycle amount, discharges spring Sheet close that delay is also infrequent to have a dynamical stable hermetic compressor. Therefore, according to Hermetic compressor of the present invention can be used for using CO2The refrigeration of cold-producing medium and aircondition.
Claims (6)
1. a hermetic compressor has the seal container that holds compression unit and oil,
Compression unit comprises:
Cylinder;
Pistons reciprocating in this cylinder; And
Valve disc, this valve disc seal the open end of this cylinder and have the expulsion valve system in this cylinder outside;
This expulsion valve system comprises:
The tap hole that on this valve disc, forms;
Be arranged on the valve seat of this valve disc outside round this tap hole;
Be formed on this valve disc outside, the basic base identical with this valve seat height;
Be formed on the dish contact segment of this valve disc outside, the position higher than this valve seat;
By the discharge reed that flaky elastic material is made, have the ON/OFF part and the discharge reed retaining part that is fixed in this base that cover tap hole in the mode that can open and close this tap hole;
By the elastic spring that flaky elastic material is made, it has elastic spring retaining part and the moveable part that is fixed in this base, and this elastic spring is located at the outside of discharging reed; And
Break has the break retaining part that is fixed in base and regulate part, and this break is positioned at the outside of this elastic spring;
Wherein this elastic spring has elastic spring curved section and end on moveable part, and this elastic spring is in the direction bending of elastic spring curved section towards valve seat, and this end can be realized and coiled contact segment and contact.
2. hermetic compressor according to claim 1, wherein this discharge reed has the reed of discharge curved section between discharge reed retaining part and ON/OFF part; And should discharge reed and discharge of the direction bending of reed curved section towards valve seat.
3. hermetic compressor according to claim 2, wherein the bottom surface recessed portion that is lower than this valve seat and this base is located between the valve seat and base of outer surface of this valve disc, and this discharge reed curved section is located at the outside of this recessed portion.
4. according to arbitrary described hermetic compressor in the claim 1 to 3, wherein break is being regulated the break contact segment that has on the part towards elastic spring lateral bending song.
5. hermetic compressor has:
Cylinder;
Pistons reciprocating in cylinder; And
Valve disc, the open end of this valve disc sealing cylinder and have expulsion valve system in the cylinder outside;
The expulsion valve system comprises:
Be located at the valve seat of this valve disc outside round the hole that penetrates this valve disc;
Be formed on the valve disc outside, the base identical with the valve seat height;
Be formed on the dish contact segment of this valve disc outside, the position higher than valve seat;
One end is fixed in first spring that the base the other end can cover this hole;
At second spring in first spring outside, the one end is fixed in the base the other end and extends to the dish contact segment, and at the middle part towards the direction bending of valve seat; And
One end is fixed in base and covers the break of second spring.
6. hermetic compressor according to claim 5, wherein the bottom surface recessed portion that is lower than this valve seat and this base is located between the valve seat and base of outer surface of this valve disc, and second spring is crooked at some place in the outside of recessed portion.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP355157/2004 | 2004-12-08 | ||
| JP2004355157A JP4752257B2 (en) | 2004-12-08 | 2004-12-08 | Hermetic compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1906414A true CN1906414A (en) | 2007-01-31 |
Family
ID=35811668
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2005800018540A Pending CN1906414A (en) | 2004-12-08 | 2005-12-08 | Hermetic compressor |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US20090116985A1 (en) |
| EP (1) | EP1709330A1 (en) |
| JP (1) | JP4752257B2 (en) |
| KR (1) | KR100859861B1 (en) |
| CN (1) | CN1906414A (en) |
| WO (1) | WO2006062246A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104728085A (en) * | 2015-03-19 | 2015-06-24 | 安徽美芝制冷设备有限公司 | Compressor and exhaust valve assembly thereof |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007092539A (en) * | 2005-09-27 | 2007-04-12 | Matsushita Electric Ind Co Ltd | Hermetic compressor |
| KR101463834B1 (en) * | 2009-01-14 | 2014-11-20 | 엘지전자 주식회사 | Valve device and hermetic compressor having the same |
| JP5699512B2 (en) * | 2010-09-30 | 2015-04-15 | いすゞ自動車株式会社 | Reed valve |
| US20140193279A1 (en) * | 2011-01-11 | 2014-07-10 | Panasonic Corporation | Valve device of compressor, and sealed compressor including valve device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4580604A (en) * | 1983-06-23 | 1986-04-08 | Mitsubishi Denki Kabushiki Kaisha | Discharging valve device for a compressor |
| JPS608577A (en) * | 1983-06-29 | 1985-01-17 | Hitachi Ltd | Construction of delivery valve for compressor |
| JPS6165973A (en) * | 1984-09-06 | 1986-04-04 | Mitsubishi Electric Corp | Coolant discharging valve device of compressor |
| BR8901306A (en) * | 1989-03-16 | 1990-10-16 | Brasil Compressores Sa | REED VALVE FOR HERMETIC COMPRESSOR |
| KR930005874Y1 (en) * | 1991-01-31 | 1993-09-01 | 삼성전자 주식회사 | Compressor |
| KR960002111Y1 (en) * | 1991-05-06 | 1996-03-14 | 삼성전자 주식회사 | Discharge valve device of compressor |
| KR200154567Y1 (en) * | 1995-06-03 | 1999-08-16 | 윤종용 | A discharge valve device of a compressor |
| KR0147004B1 (en) * | 1995-07-26 | 1998-08-17 | 김광호 | Cylinder of an reciprocating compressor |
| KR0161094B1 (en) * | 1995-09-05 | 1999-03-20 | 구자홍 | Valve apparatus of a hermetic compressor |
| CA2185183C (en) * | 1996-09-10 | 2000-04-11 | Myung-Jung Hong | Valve apparatus of enclosed reciprocating compressor |
| US5934305A (en) * | 1996-09-12 | 1999-08-10 | Samsung Electronics Co., Ltd. | Method of manufacturing a reciprocating compressor |
| US5769126A (en) * | 1996-09-12 | 1998-06-23 | Samsung Electronics Co., Ltd. | Discharge valve assembly in a reciprocating compressor |
| JP2924952B2 (en) * | 1996-10-08 | 1999-07-26 | 三星電子株式会社 | Valve device for hermetic reciprocating compressor |
| ES2145670B1 (en) * | 1997-04-29 | 2001-02-16 | Electrolux Espana S A | COMPRESSION VALVE ASSEMBLY APPLIED TO A HERMETIC REFRIGERATION COMPRESSOR. |
| JPH10339270A (en) * | 1997-06-05 | 1998-12-22 | Daewoo Electron Co Ltd | Valve combined body of compressor |
| JPH11210624A (en) * | 1998-01-26 | 1999-08-03 | Mitsubishi Electric Corp | Discharge valve device of compressor |
| JP4670146B2 (en) * | 2000-12-25 | 2011-04-13 | パナソニック株式会社 | Hermetic electric compressor |
| KR100406640B1 (en) * | 2001-10-10 | 2003-11-21 | 삼성광주전자 주식회사 | Valve apparatus for Hermetic compressor |
| KR20030032629A (en) * | 2001-10-19 | 2003-04-26 | 삼성광주전자 주식회사 | high efficiency valve assembly for compressor |
| JP2007092539A (en) * | 2005-09-27 | 2007-04-12 | Matsushita Electric Ind Co Ltd | Hermetic compressor |
-
2004
- 2004-12-08 JP JP2004355157A patent/JP4752257B2/en not_active Expired - Fee Related
-
2005
- 2005-12-08 CN CNA2005800018540A patent/CN1906414A/en active Pending
- 2005-12-08 KR KR1020087000117A patent/KR100859861B1/en not_active IP Right Cessation
- 2005-12-08 US US10/579,868 patent/US20090116985A1/en not_active Abandoned
- 2005-12-08 WO PCT/JP2005/022992 patent/WO2006062246A1/en active Application Filing
- 2005-12-08 EP EP05816473A patent/EP1709330A1/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104728085A (en) * | 2015-03-19 | 2015-06-24 | 安徽美芝制冷设备有限公司 | Compressor and exhaust valve assembly thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1709330A1 (en) | 2006-10-11 |
| WO2006062246A1 (en) | 2006-06-15 |
| KR100859861B1 (en) | 2008-09-24 |
| JP2006161709A (en) | 2006-06-22 |
| JP4752257B2 (en) | 2011-08-17 |
| KR20080006027A (en) | 2008-01-15 |
| US20090116985A1 (en) | 2009-05-07 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| AD01 | Patent right deemed abandoned |
Effective date of abandoning: 20070131 |
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| C20 | Patent right or utility model deemed to be abandoned or is abandoned |