CN106337814A - Compressor and refrigeration cycle device - Google Patents
Compressor and refrigeration cycle device Download PDFInfo
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- CN106337814A CN106337814A CN201610285600.6A CN201610285600A CN106337814A CN 106337814 A CN106337814 A CN 106337814A CN 201610285600 A CN201610285600 A CN 201610285600A CN 106337814 A CN106337814 A CN 106337814A
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- compression mechanism
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- compressor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
- F04C18/30—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
- F04C18/34—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members
- F04C18/356—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the outer member
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/04—Heating; Cooling; Heat insulation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/12—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
- Compressor (AREA)
Abstract
A compressor is provided with a compression mechanism and a discharge valve. The discharge valve comprises: an affixed section affixed to the compression mechanism; a front end section for closing a discharge port (73) in an openable and closable manner, the discharge port (73) discharging a refrigerant having been compressed in a space (72) in the compression mechanism; and an intermediate section for connecting the affixed section and the front end section and closing, together with the front end section, the discharge port (73) in an openable and closable manner. The width a of the opening region of the discharge port (73) at a position facing the intermediate section of the discharge valve of the compression mechanism is less than the width b of the opening region of the discharge port (73) at a position facing the front end section of the discharge valve of the compression mechanism.
Description
Technical field
The present invention relates to compressor and refrigerating circulatory device.
Background technology
Hermetic type rotary compressor possesses: closed container, the pressure of the bottom being accommodated in closed container
Contracting mechanism and the top being accommodated in closed container simultaneously drive the motor of compression mechanism.Compression
Mechanism possesses: cylindric cylinder body, the bearing of the upper and lower side of closed cylinder and be contained in cylinder body
Ring-type piston.Bearing carries out propping up to by the bent axle of the torque transmission of motor to compression mechanism
Hold.It is provided for discharging the outlet of compressed gas in bearing.Piston is flush-mounted in the eccentric part of bent axle.
In the past, existed and (for example, the outlet of bearing was made elliptoid hermetic type rotary compressor
With reference to patent document 1).
Patent document 1: Japanese Unexamined Patent Publication 2012-140908 publication
In hermetic type rotary compressor, the rotation of bent axle and the rotor of motor is synchronously revolved
Turn, thus piston carries out eccentric rotary so that the volume of discharge chambe in cylinder body changes.Companion
With the volume change of discharge chambe, cold-producing medium is inhaled into discharge chambe and is compressed.Cold-producing medium after compression
Discharge from the outlet of bearing.Cold-producing medium after discharge passes through on the top of closed container, and conduct
High-pressure refrigerant is to the outside discharge of closed container.
It is desirable to the outlet of bearing is to meet following condition in such hermetic type rotary compressor
Mode configure.
Condition 1: outlet is got along well for multiple bolts of cylinder body and the fastening of bearing and for above-mentioned
The hole of multiple bolt insertions is interfered.
Condition 2: when forming discharge chambe in cylinder body, than piston inner circumferential space in the inner part not
It is connected with outlet.
Condition 3: the area of outlet becomes optimal area.
In the case of the condition that is unsatisfactory for 1, merely with a part of bolt fastening cylinder body and bearing,
Thus the reliability of compression mechanism reduces.
In the case of the condition that is unsatisfactory for 2, high-pressure refrigerant the inner side of piston by and flow into low
Pressure space, thus cause compression losses.
In the case of the condition that is unsatisfactory for 3, the flow path resistance at outlet increases, thus causing
Compression.The workload of its result compressed action increases so that the performance of compression mechanism reduces.
Hermetic type rotary compressor is in order to maintain the reliability of compression mechanism, and realizes compression mechanism
High efficiency and path closed container in high capacity, exist and make cylinder body flattening and expand
The tendency of the offset of big piston.In order that cylinder body flattening or expand piston offset and
Meet condition 3, then need to expand outlet.If but being circular or oval shape in outlet
Expand this outlet, then outlet and the seal length of piston reduce, thus being difficult to meet bar under state
Part 2.Its result reduces the validity of hermetic type rotary compressor.If making the center of outlet outside
Side to movement, is then able to ensure that the seal length of outlet and piston, but is difficult to meet condition 1.
As a result, the reliability of hermetic type rotary compressor reduces.In addition, " outlet is close with piston
Envelope length " refers to the distance between inner circumferential of outlet and piston.
If in addition, the flow of cold-producing medium increases because of high capacity, as being installed on outlet
The damaged possibility of the dump valve of valve raises.Specifically, due to when dump valve rises, stress
Concentrate on a part for dump valve, or when dump valve is taken a seat, cause the increase of impact stress, from
And there is a possibility that dump valve is damaged.As a result, the reliability of hermetic type rotary compressor reduces.
Content of the invention
It is an object of the invention to maintaining reliability and the validity of compressor, and it is capable of
The high capacity of compressor.
The compressor of one mode of the present invention possesses:
Compression mechanism, it is formed with for the space of compression refrigerant with for will be in described space
The outlet that cold-producing medium after interior compression is discharged；With
Dump valve, consists of including fixed part, leading section and pars intermedia, described fixed part is solid
Due to described compression mechanism, described leading section is closed freely to the opening and closing of described outlet, institute
State pars intermedia to be connected described fixed part with described leading section, and to described together with described leading section
Outlet opening and closing is closed freely,
The opening of the described outlet at the position opposed with described pars intermedia of described compression mechanism
The width in region, less than the described row at the described compression mechanism position opposed with described leading section
The width of the open area of outlet.
In one example, described at the position opposed with described pars intermedia of described compression mechanism
The open area of outlet, towards the described compression mechanism position opposed with described fixed part by
Gradual change is narrow.
In one example, the open area of described outlet has following shape it may be assumed that by diameter
Two different circles have, used in described two round both sides, the shape that the two lines at point of contact are formed by connecting.
In one example, described compression mechanism has: the piston of ring-type, outer than this piston
Week, position in the outer part formed described space, and this piston carries out eccentric rotary；Blade, its with institute
State the corresponding ratio of position of rotation of piston, described space is divided into suction chamber and the high pressure of low pressure
Discharge chambe, a part for the open area of described outlet has following shape it may be assumed that bending to
The inner circumferential integrally becoming positioned at described space with described piston during the position of rotation of described suction chamber is same
The arc-shaped of the heart.
In one example, the open area of described outlet has following shape it may be assumed that by diameter
Two different circles have, used in described two round both sides, the shape that the two lines at point of contact are formed by connecting,
A side in described two lines is integrally to become described suction chamber with described piston positioned at described space
Position of rotation when the concentric circular arc of inner circumferential.
In one example, described compression mechanism also has: cylinder body, leans in the inner circumferential than this cylinder body
The position of inner side forms described space；Bearing, it forms the fastener hole of described outlet and circle,
And it is fixed on described cylinder body by the securing member being inserted in described fastener hole, the rotation to described piston
Axle is supported, the another part of the open area of described outlet have bend to tight with described
The shape of the arc-shaped of the circumferential concentric of solid hole.
In one example, the open area of described outlet has following shape it may be assumed that by diameter
Two different circles have, used in described two round both sides, the shape that the two lines at point of contact are formed by connecting,
A side in described two lines is integrally to become described suction chamber with described piston positioned at described space
Position of rotation when the concentric circular arc of inner circumferential, the opposing party in described two lines is and described fastening
The circular arc of the circumferential concentric in hole.
The refrigerating circulatory device of one mode of the present invention possesses refrigerant loop, this refrigerant loop
It is connected with the compressor described in any of the above-described, for refrigerant circulation.
In the present invention, not only it is discharged before valve because the outlet being formed at compression mechanism has
End-enclosed and by dump valve pars intermedia closing degree size, therefore, it is possible to make compression
Machine high capacity.Outlet is discharged the pars intermedia closing of valve, can suppress stress to dump valve
An impact stress when part is concentrated and dump valve is taken a seat increases, thus dump valve is difficult to breakage.
Therefore, it is possible to maintain the reliability of compressor.Further, since the width of the open area of outlet exists
Reduced it is thus possible to guarantee the close of outlet and piston by the position of the pars intermedia closing of dump valve
Envelope length.Therefore also it is able to maintain that the validity of compressor.
Brief description
Fig. 1 is the loop diagram of the refrigerating circulatory device of embodiment 1.
Fig. 2 is the loop diagram of the refrigerating circulatory device of embodiment 1.
Fig. 3 is the longitudinal section of the compressor of embodiment 1.
Fig. 4 is the top view of the dump valve of the compressor of embodiment 1.
Fig. 5 is the sectional elevation of a part for the compressor of embodiment 1.
Fig. 6 is the a-a sectional view of the compressor of embodiment 1.
Fig. 7 is the sectional elevation of a part for the compressor of embodiment 2.
Description of reference numerals: 10 ... refrigerating circulatory devices；11 ... refrigerant loops；12 ... compressors；
13 ... cross valves；14 ... first heat exchangers；15 ... expansion mechanisms；16 ... second heat exchangers；
17 ... control devices；20 ... closed containers；21 ... suction lines；22 ... discharge pipes；23 ... suctions disappear
Sound device；24 ... terminals；30 ... compression mechanisms；31 ... cylinder bodies；32 ... pistons；33 ... blades；34…
Base bearing；35 ... supplementary bearings；36 ... discharge silencers；37 ... securing members；40 ... motor；41…
Stator；42 ... rotors；43 ... stator cores；44 ... coils；46 ... rotor cores；50 ... bent axles；
51 ... eccentric axial portion；52 ... main shaft part；53 ... countershaft portions；60 ... dump valves；61 ... fixed parts；
62 ... pars intermedias；63 ... leading sections；64 ... through holes；65 ... necks；71 ... suction inlets；72…
Space；73 ... outlets；74 ... surrounding wall portion；75 ... inner circumferentials；76 ... cylinder body rooms；77 ... blade grooves；
78 ... inner circumferentials；79 ... peripheries；81 ... fastener holes；82 ... valve pools；83 ... shallow slot portions；84 ... deep trouths
Portion.
Specific embodiment
Hereinafter, using accompanying drawing, embodiments of the present invention are illustrated.In addition each in figure, to phase
Same or suitable part mark identical reference.In the explanation of embodiment, for phase
Same or suitable part is suitably omitted or simplified its explanation.In addition, the explanation in embodiment
In, for " on ", D score, "left", "right", "front", "rear", " table ", the configuration such as " back of the body ",
Towards etc., for purposes of illustration only, only marking in the above described manner, not to device, utensil, part etc.
Configuration, direction etc. are defined.For structures such as device, utensil, parts, its material, shape,
Size etc. can suitably change within the scope of the invention.
Embodiment 1
The equipment of the structure of the device to present embodiment and equipment, present embodiment is dynamic successively
Make, the effect of present embodiment illustrates.
Structure explanation
With reference to Fig. 1 and Fig. 2, to the refrigerating circulatory device 10 of the device as present embodiment
Structure illustrates.
Fig. 1 illustrates the refrigerant loop 11 during cooling operation.Fig. 2 illustrates refrigeration during heating operation
Agent loop 11.
Refrigerating circulatory device 10 is air conditioner but it is also possible to be refrigerator, heat in the present embodiment
Device beyond the air conditioner of pump circulation device etc.
Refrigerating circulatory device 10 possesses the refrigerant loop 11 for refrigerant circulation.
It is connected with refrigerant loop 11: compressor 12, cross valve 13, the outdoor heat exchange of conduct
The first heat exchanger 14 of device, the expansion mechanism 15 as expansion valve and as Indoor Thermal hand over
The second heat exchanger 16 of parallel operation.Compressor 12 is compressed to cold-producing medium.Cross valve 13 is in system
The direction of switching cold-producing medium flowing during blowdown firing and during heating operation.In cooling operation, the first heat
Exchanger 14 is as condenser action, and the cold-producing medium radiating after making to be compressed by compressor 12.?
During heating operation, first heat exchanger 14 as evaporimeter action, outdoor air with expanding
Carry out heat exchange that cold-producing medium is heated between cold-producing medium after mechanism 15 expansion.Decompressor
Structure 15 makes the cold-producing medium after condenser radiates expand.In heating operation, second heat exchanger
16 as condenser action, the cold-producing medium radiating after making to be compressed by compressor 12.In cooling operation
When, as evaporimeter action, air is swollen with expansion mechanism 15 indoors for second heat exchanger 16
Carry out heat exchange that cold-producing medium is heated between cold-producing medium after swollen.
Refrigerating circulatory device 10 is also equipped with control device 17.
Control device 17 specifically microcomputer.In Fig. 1 and Fig. 2, only illustrate to control
Device 17 processed is connected with compressor 12, but control device 17 is not only connected with compressor 12, also
It is connected with each key element being connected to refrigerant loop 11.Control device 17 monitors or controls respectively will
The state of element.
As the cold-producing medium circulating in refrigerant loop 11, r32 cold-producing medium, r290 can be used
(propane) cold-producing medium, r407c cold-producing medium, r410a cold-producing medium, r744 (co2) refrigeration
The arbitrary cold-producing medium such as agent, r1234yf cold-producing medium.
With reference to Fig. 3, the structure of the compressor 12 of the equipment as present embodiment is illustrated.
Fig. 3 illustrates the longitudinal section of compressor 12.In addition omit the shade representing section in figure 3
Line.
Compressor 12 is the rotary compressor of twin-tub but it is also possible to be single cylinder in the present embodiment
Rotary compressor, rotary compressors more than three cylinders or screw compressor.
Compressor 12 possesses: closed container 20, compression mechanism 30, motor 40, bent axle 50
And dump valve 60.
In closed container 20, the suction line 21 for sucking cold-producing medium is installed and is used for the system of discharging
The discharge pipe 22 of cryogen.
Compression mechanism 30 is accommodated in the inner side of closed container 20.Specifically, compression mechanism 30
It is arranged at the lower inside of closed container 20.Compression mechanism 30 is driven by motor 40.Compression
Mechanism 30 is compressed to the cold-producing medium being sucked into suction line 21.
Motor 40 is also accommodated in the inner side of closed container 20.Specifically, motor 40 sets
It is placed in the inside upper part of closed container 20.Motor 40 is concentratred winding horse in the present embodiment
Reach but it is also possible to be Distributed Winding motor.
It is stored with for moistening to each sliding part of compression mechanism 30 in the bottom of closed container 20
Sliding refrigerating machine oil.Refrigerating machine oil with bent axle 50 rotation and by the bottom being arranged at bent axle 50
Oil pump draw, and each sliding part supply to compression mechanism 30.As refrigerating machine oil, use
Poe (polyol ester) as artificial oil, pve (polyvinylether), ab (alkylbenzene) etc..
Hereinafter, motor 40 is described in detail.
Motor 40 is brushless dc (direct current) motor in the present embodiment, but
It can also be the motor beyond the brushless dc motor such as induction conductivity.
Motor 40 possesses stator 41 and the columned rotor 42 of cylindrical shape.
Stator 41 is contacted with the inner peripheral surface of closed container 20 and is fixed on this inner peripheral surface.Rotor 42
It is arranged at the inner side of stator 41 across the space of 0.3～1.0 millimeter.
Stator 41 possesses stator core 43 and coil 44.Stator core 43 is made in the following manner
Make: by with iron as main component and thickness is that 0.1～1.5 millimeter of multi-disc electromagnetic steel plate is punched into one
Fixed shape, is laminated in the axial direction, and is fixed by riveting or welding etc..Coil 44 warp
Stator core 43 is wound in the way of concentratred winding by insulating element.Coil 44 be configured to including
Heart yearn and at least one of which envelope covering heart yearn.In the present embodiment, the material of heart yearn is copper.
The material of envelope is ai (amide imide)/ei (ester acid imide).The material of insulating element is
Pet (polyethylene terephthalate).In addition, the material of heart yearn can also be aluminium.Insulation
The material of part can also be pbt (polybutylene terephthalate (PBT)), fep (tetrafluoroethene six
Fluoropropene copolymer), pfa (tetrafluoroethene perfluoroalkyl vinyl ether copolymer), ptfe
(polytetrafluoroethylene (PTFE)), lcp (liquid crystal polymer), pps (polyphenylene sulfide) or phenolic resin.
It is connected with one end of lead (not shown) in coil 44.
Rotor 42 possesses rotor core 46 and permanent magnet (not shown).Rotor core 46 with fixed
Son is unshakable in one's determination 43 identical, makes in the following manner: will with iron as main component and thickness be 0.1～
1.5 millimeters of multi-disc electromagnetic steel plate is punched as certain shape, is laminated in the axial direction, and passes through riveting
Connect or weld etc. and be fixed.Permanent magnet is inserted into the multiple insertions being formed at rotor core 46
Hole.Permanent magnet forms magnetic pole.Use ferrite lattice or rare earth element magnet as permanent magnet.
Although not shown, but the vertical view in rotor core 46 is centrally formed with axis hole, for supplying bent axle
50 main shaft part 52 hot charging or press-in.Around the axis hole of rotor core 46, it is formed with edge
Axially through multiple through holes.Each through hole becomes from discharge silencer 36 to closed container
One of path of gas refrigerant of space release in 20.
Although not shown, but in the case that motor 40 is configured to induction conductivity, it is being formed at
The conductor that multiple slots of rotor core 46, filling or insertion are formed by aluminium or copper etc..Then
Form the birdcage coil that the two ends of conductor are carried out short circuit with end ring.
At the top of closed container 20, the terminal 24 being connected with external power sources such as converter plants is installed.
Terminal 24 specifically glass terminal.In the present embodiment, and terminal 24 by welding consolidate
Due to closed container 20.It is connected with the other end of above-mentioned lead in terminal 24.By this terminal 24
Electrically connect with the coil 44 of motor 40.
The discharge pipe 22 of axial both ends open is installed at the top of closed container 20.From compressor
Structure 30 discharge gas refrigerant, the space in closed container 20 by discharge pipe 22 to
Outside refrigerant loop 11 is discharged.
Hereinafter, with reference to Fig. 4, dump valve 60 is described in detail.
Dump valve 60 is configured to including fixed part 61, pars intermedia 62 and leading section 63.At this
In embodiment, dump valve 60 is integrally formed by the board member of strip, one end of long side direction
Portion is fixed part 61, and the central portion of long side direction is pars intermedia 62, the other end of long side direction
It is leading section 63.
Fixed part 61 is fixed on compression mechanism 30.In the present embodiment, arrange in fixed part 61
There is through hole 64, using fixtures such as the screws being inserted in through hole 64, fixed part 61 is fixing
In compression mechanism 30.
Fixed part 61 and leading section 63 are connected by pars intermedia 62.In the present embodiment, middle
The width x in portion 62 is less than the width w of fixed part 61.
Leading section 63 has the part being connected with pars intermedia 62 that is, neck 65.In present embodiment
In, the width size of leading section 63 from the side being connected with pars intermedia 62 towards opposition side by
Cumulative big, and be gradually reduced from midway.In top view, width size is gradually reduced
Part is semicircle shape.The width size of the length of the diameter of this part and leading section 63 is
Big value, i.e. the width y of leading section 63 are equal.
Hereinafter, referring also to Fig. 5 and Fig. 6 in addition to reference to Fig. 3, compression mechanism 30 is carried out
Explain.
Fig. 5 illustrates the cross section of a part for compressor 12.In addition, omit in Figure 5 representing
The hacures in section.And for convenience of description, omit securing member 37 in Figure 5 and discharge
Valve 60 etc., only illustrates a part and the bent axle 50 of compression mechanism 30.Fig. 6 illustrates with institute in Fig. 5
The a-a line showing cuts off the section in the case of compression mechanism 30.In addition, in figure 6, remove
Beyond a part, omit the hacures representing section.And also omit bent axle 50 in figure 6.
It is formed with compression mechanism 30: suction inlet 71, it is used for sucking gas from refrigerant loop 11
Cryogen；Space 72, it is used for the cold-producing medium sucking from suction inlet 71 is compressed；Row
Outlet 73, it is used for discharging the cold-producing medium after this space 72 is compressed to refrigerant loop 11.
Compression mechanism 30 has: cylinder body 31, piston 32, blade 33, base bearing 34 and pair
Bearing 35.In the present embodiment, because compressor 12 is the rotary compressor of twin-tub, therefore
Cylinder body 31, piston 32 and blade 33 are respectively in each setting in top and bottom one.
During top view, the inner circumferential 75 of cylinder body 31 is circle.In being internally formed of cylinder body 31
It is circular space that is, cylinder body room 76 during top view.The axial both ends open of cylinder body 31.
Blade groove 77 is set in cylinder body 31, this blade groove 77 is connected with cylinder body room 76 and radially
Extend.Although not shown, but it is formed with, in the outside of blade groove 77, the vertical view being connected with blade groove 77
It is circular space that is, back pressure chamber during observation.
Piston 32 is ring-type.Therefore top view when, the inner circumferential 78 of piston 32 and periphery 79
For circle.Piston 32 carries out eccentric rotary in cylinder body room 76.Piston 32 is sliding freely embedding
It is loaded on the eccentric axial portion 51 of the bent axle 50 of the rotary shaft becoming piston 32.
Blade 33 is the tabular of front end rounding.Blade 33 is arranged in the blade groove 77 of cylinder body 31.
The leaf spring that blade 33 is always arranged at back pressure chamber presses on piston 32.Due to closed container
It is high pressure in 20, if the operation start of therefore compressor 12, to the back pressure chamber side of blade 33
Face that is, vacuum side of blade effect are by the difference of the pressure in the pressure in closed container 20 and cylinder body room 76
The power producing.Therefore it is using the main purpose of leaf spring, in closed container 20 and cylinder
When pressure in body room 76 does not have poor compressor 12 starting, blade 33 is pressed on piston
32.
When side is observed, base bearing 34 is the shape of falling t.Base bearing 34 is sliding freely embedded in
In the top part of the ratio eccentric axial portion 51 of bent axle 50 that is, main shaft part 52.Base bearing 34 is by cylinder
The upside closing of the cylinder body room 76 of body 31 and blade groove 77.
When side is observed, supplementary bearing 35 is t shape.Supplementary bearing 35 is sliding freely flush-mounted in
The ratio eccentric axial portion 51 of bent axle 50 part on the lower that is, countershaft portion 53.Supplementary bearing 35 is by cylinder body
The downside closing of 31 cylinder body room 76 and blade groove 77.
In addition, the structure of base bearing 34 side shown in Fig. 5 and Fig. 6, but supplementary bearing 35 side
Also it is identical structure.
Suction inlet 71 is connected with cylinder body room 76 from the outer peripheral face of cylinder body 31.For compression refrigerant
Space 72 be formed at than cylinder body 31 inner circumferential 75 in the inner part, and the periphery 79 than piston 32
Position in the outer part.That is, the space 72 for compression refrigerant is formed at the inner circumferential 75 of cylinder body 31
And the periphery 79 of piston 32 between.Blade 33 with ratio corresponding with the position of rotation of piston 32,
This space 72 is divided into the suction chamber of low pressure and the discharge chambe of high pressure.
Outlet 73 is formed at base bearing 34 and this two bearings of supplementary bearing 35.Outlet 73 exists
It is formed at the side at suction inlet 71 place and contrary across the center line of blade 33 at each bearing
Side.That is, outlet 73 is formed at following position: the space 72 of compression mechanism 30 is by blade 33
It is divided into the position being connected when suction chamber and discharge chambe with discharge chambe.
In the conglobate fastener hole 81 of each bearing also shape.Each bearing is by being inserted in fastener hole
81 securing member 37 and be fixed on cylinder body 31, and the bent axle 50 to the rotary shaft as piston 32
Supported.Base bearing 34 is specifically fixed on the cylinder body 31 on top.Supplementary bearing 35 is specifically solid
Cylinder body 31 due to bottom.Securing member 37 is the combination of bolts and nuts in the present embodiment.
The number of fastener hole 81 suitably adjusts, but each bearing needs multiple fastener holes 81.
Also form valve pool 82 in each bearing.Valve pool 82 is configured to including shallow slot portion 83 and deep trouth portion
84.Accommodate in shallow slot portion 83 and fix the fixed part 61 of dump valve 60.Bottom in deep trouth portion 84
Portion arranges outlet 73.Accommodate pars intermedia 62 and the leading section 63 of dump valve 60 in deep trouth portion 84.
Leading section 63 is opened and closed to outlet 73 and closes freely.Pars intermedia 62 and leading section 63 1
Rise, outlet 73 is opened and closed and closes freely.Pars intermedia 62 and leading section 63 are discharged in closing
During mouth 73, the end contact with the surrounding wall portion 74 of outlet 73.The surrounding wall portion 74 of outlet 73
Constant thickness constant.The height of the surrounding wall portion 74 of outlet 73 is equal to shallow slot portion 83 and deep trouth
The difference of the depth in portion 84.That is, the end face of the surrounding wall portion 74 of outlet 73 is in the height of surrounding wall portion 74
Bottom surface identical position with deep trouth portion 84 is on degree direction.In addition, pars intermedia 62 can also
Configure across shallow slot portion 83 and deep trouth portion 84.
Install in the outside of each bearing and discharge silencer 36.The high temperature discharged via dump valve 60
And the gas refrigerant of high pressure temporarily enter discharge silencer 36, afterwards from discharge silencer 36 to
Space release in closed container 20.In addition dump valve 60 and discharge silencer 36 can also
It is provided only on either one in base bearing 34 and supplementary bearing 35.
In the present embodiment, cylinder body 31, base bearing 34, the material of supplementary bearing 35 are sintered steel,
It may also be casting pig or carbon steel.The material of piston 32 is the steel alloy containing chromium etc..
The material of blade 33 is high-speed tool steel.
On the side of closed container 20, suction silencer 23 is set.Suction silencer 23 is from cold-producing medium
Loop 11 sucks the gas refrigerant of low pressure.Suction silencer 23 suppresses to return in liquid refrigerant
In the case of, liquid refrigerant is directly entered the cylinder body room 76 of cylinder body 31.Suction silencer 23
It is connected with suction inlet 71 via suction line 21.The main body of suction silencer 23 passes through welding etc.
It is fixed on the side of closed container 20.
Hereinafter, the outlet 73 being formed at compression mechanism 30 is described in detail.
In the present embodiment, outlet 73 has not only leading section 63 envelope by dump valve 60
The size of degree closed and closed by the pars intermedia 62 of dump valve 60.Therefore, it is possible to realize pressing
The high capacity of contracting machine 12.
Assume outlet 73 only closed by leading section 63, then when dump valve 60 rises, because in
Between portion 62 and leading section 63 poor rigidity, stress concentration is in the neck of leading section 63, thus having
Dump valve 60 may be made damaged.But in the present embodiment, because outlet 73 is also by centre
Portion 62 closes, thus suppresses such stress concentration, thus dump valve 60 is difficult to breakage.Therefore
It is able to maintain that the reliability of compressor 12.
Assume that outlet 73 is also increased in the state of outlet 73 is circle or ellipse
The degree closed by pars intermedia 62, then not only outlet and the seal length f of piston 32 reduce,
And formed in cylinder body 31 during discharge chambe it is possible to make the ratio inner circumferential 78 of piston 32 in the inner part
Space be connected with outlet 73.But in the present embodiment, compression mechanism 30 with centre
The width a of the open area of outlet 73 at the opposed position in portion 62, less than compression mechanism 30
The position opposed with leading section 63 at the open area of outlet 73 width b.Therefore can
Enough guarantee the seal length f of outlet 73 and piston 32.Therefore also it is able to maintain that compressor 12
Validity.In addition width a is less than the width x of pars intermedia 62.Width b is less than leading section 63
Width y.
Particularly in the present embodiment, at the position opposed with pars intermedia 62 of compression mechanism 30
Outlet 73 open area, towards the position that compression mechanism 30 is opposed with fixed part 61
And become narrow gradually.Therefore, it is possible to guarantee the seal length f of outlet 73 and piston 32, and expand
Big outlet 73.In the case of making cylinder body 31 flattening, the wall thickness of piston 32 is thinning, but root
According to present embodiment, it can be avoided that the restriction in structure, and the opening of outlet 73 can be made
The area in region optimizes.
Specifically, the open area of outlet 73 has following shape it may be assumed that will be different for diameter
Two circles used in this two round both sides, there is the shape that the two lines at point of contact are formed by connecting.This two
In circle, the circle of a larger side is in the position opposed with leading section 63 of compression mechanism 30, less
The circle of a side be in the position opposed with pars intermedia 62 of compression mechanism 30.
In the present embodiment, a part for the open area of outlet 73 has following shape,
That is: bend to the overall rotation becoming suction chamber in space 72 being in compression mechanism 30 with piston 32
The shape of the concentric arc-shaped of the inner circumferential 78 when indexing is put.That is, a side of above-mentioned two lines be with
Piston 32 be in compression mechanism 30 space 72 overall become suction chamber position of rotation when interior
All 78 concentric circular arcs.In addition as shown in figure 5, be in the sky of compression mechanism 30 in piston 32
Between in the case of the 72 overall position of rotation becoming suction chamber, blade 33 integrally contained in blade groove
In 77.
In the present embodiment, the another part of the open area of outlet 73 has and bends to
Shape with the arc-shaped of the circumferential concentric of fastener hole 81.That is, the opposing party of above-mentioned two lines is
Circular arc with the circumferential concentric of fastener hole 81.
In base bearing 34 and this two bearings of supplementary bearing 35, fastener hole 81 must configure than
The inner circumferential 75 of cylinder body 31 in the outer part and is avoided suction inlet 71, blade groove 77 and is included discharging
The position of the valve pool 82 of mouth 73.And need tight by base bearing 34 and the cylinder body 31 on top
Gu, the fastening of upper cylinder 31 and lower cylinders 31 and lower cylinders 31 and supplementary bearing 35
Fastening, to guarantee the sealing of each bearing and cylinder body 31.Therefore fastener hole 81 is preferably provided with
For equidistant.Additionally, restraint location is further away from the inner circumferential 75 of cylinder body 31, more need to expand bearing
External diameter and increase bearing thickness of flange, thus manufacturing cost increase.Therefore fastener hole 81
It is preferably and be arranged near the inner circumferential 75 of cylinder body 31 as far as possible.
In the present embodiment, even if configuring fastener hole 81 in the way of meeting above-mentioned all important documents,
Also will not interfere with fastener hole 81, and be able to ensure that the seal length f with piston 32, and
The area that open area can be arranged in each bearing is the outlet 73 of optimal area.That is, can
Configure outlet 73 in the way of meeting above-mentioned condition 1, condition 2 and condition 3 all conditions.
Specifically, as shown in figure 5, outlet 73 can be configured in a fastener hole 81
Circumference and piston 32 are in the overall rotation position becoming suction chamber in space 72 of compression mechanism 30
Between inner circumferential 78 when putting.The side of the open area of outlet 73 and adjacent fastener hole 81
Circumference keep certain interval, and the circumference bending along this adjacent fastener hole 81.Open
The opposite side in mouth region domain, space 72 entirety being in compression mechanism 30 with piston 32 becomes suction
Inner circumferential 78 during the position of rotation of room keeps certain interval, and the inner circumferential along this piston 32
78 bendings.Even if therefore fastener hole 81 be arranged at the inner circumferential 75 of cylinder body 31 vicinity it is also possible to
Outlet 73 and fastener hole 81 is avoided to interfere such that it is able to guarantee outlet 73 and piston 32
Seal length f, can fully obtain the aperture area of outlet 73.
As shown in fig. 6, with respect to the internal diameter d of cylinder body 31, the internal diameter d of piston 32, offset
E, outlet 73 acts on amount g of inner circumferential 75 part in the inner part than cylinder body 31, needs full
The condition of sufficient g≤d/2- (e+d/2).This condition is for ensuring that outlet 73 and piston 32
Seal length f condition.By meeting this condition, high-pressure refrigerant can not flow into and compare piston
32 inner circumferential 78 low-voltage space in the inner part.
Action specification
With reference to Fig. 3, the action to the compressor 12 of the equipment as present embodiment illustrates.
The action of compressor 12 is equivalent to the refrigerant compression method of present embodiment.
From terminal 24 via stator 41 supply electric power from lead to motor 40.Existed by this electric current
The coil 44 of stator 41 flows and produces magnetic flux from coil 44.The rotor 42 of motor 40 because
The magnetic flux producing from coil 44 and the effect of the magnetic flux producing from the permanent magnet of rotor 42 and revolve
Turn.Due to the rotation of rotor 42, the bent axle 50 being fixed on rotor 42 is rotated.With bent
The rotation of axle 50, the cylinder body of the piston 32 of compression mechanism 30 cylinder body 31 in compression mechanism 30
Carry out eccentric rotary in room 76.Space 72 between cylinder body 31 and piston 32 is by compression mechanism 30
Blade 33 be divided into suction chamber and discharge chambe.With the rotation of bent axle 50, the volume of suction chamber
Change with the volume of discharge chambe.Because volume gradually expands in suction chamber, thus from suction
Silencer 23 sucks the gas refrigerant of low pressure.In discharge chambe, because volume is gradually reduced
Gas refrigerant therein is compressed.Compressed and become the gas refrigerant of high pressure and high temperature, from
Discharge silencer 36 to discharge to the space in closed container 20.The gas refrigerant discharged and then logical
Cross motor 40, the discharge pipe 22 from the top being in closed container 20 is to closed container 20
Discharge.It is discharged to the cold-producing medium after closed container 20 and passes through refrigerant loop 11, and again return to
To suction silencer 23.
Although not shown, but in the case that compressor 12 is configured to shuttle-type rotary compressor,
Blade 33 is integrated with piston 32 setting.If driving bent axle 50, blade 33 is along rotation certainly
As be installed on piston 32 supporting mass receiving channel come in and go out.Blade 33 is with the rotation of piston 32
Turn and swing while radially retreating, thus the inside of cylinder body room 76 is divided into discharge chambe
And suction chamber.Supporting mass is made up of for two columnar parts of semi-circular shape cross section.Supporting mass revolves
Turn and be flush-mounted in the circle being formed with the pars intermedia of outlet 73 in the suction inlet 71 of cylinder body 31 freely
The retaining hole of shape.
Effect explanation
In the present embodiment, because the outlet 73 being formed at compression mechanism 30 is formed as not only
Closed by the leading section 63 of dump valve 60, and the journey closed by the pars intermedia 62 of dump valve 60
The size of degree, therefore, it is possible to realize the high capacity of compressor 12.Outlet 73 is by dump valve 60
Pars intermedia 62 close, can suppress stress concentration in the neck 65 of dump valve 60 and discharge
Impact stress when valve 60 is taken a seat increases, thus dump valve 60 is difficult to breakage.Therefore, it is possible to maintain
The reliability of compressor 12.And due to outlet 73 open area width by dump valve
The position of 60 pars intermedia 62 closure reduces, therefore, it is possible to guarantee outlet 73 and piston 32
Seal length f.Therefore also it is able to maintain that the validity of compressor 12.
In the present embodiment, the outlet 73 with the shape that two circles are formed by connecting is formed
It is to extend towards the fixed part 61 of dump valve 60.Therefore compared with circular outlet, dump valve
The area of 60 pressure bearing discharging refrigerant increases in fixed part 61 side.Therefore dump valve 60
Can smoothly rise, the firm of pars intermedia 62 because of dump valve 60 and leading section 63 can be reduced
Property difference produce the stress concentration to neck 65.In addition, compared with circular outlet, discharging
The girth of mouth 73 is elongated.Thus when dump valve 60 is taken a seat, dump valve 60 and outlet 73
The area of surrounding wall portion 74 contact increases, thus impact stress also can be reduced.
In the present embodiment, the overall inner circumferential 75 along cylinder body 31 of outlet 73 extend to
The corresponding position of pars intermedia 62 of dump valve 60.Therefore be accommodated in path closed container 20,
It is also possible to easily in the compression mechanism 30 that the offset of cylinder body 31 flattening and piston 32 expands
Ground guarantees the area of outlet 73.Therefore improve the performance of compressor 12.
Other are constituted
The open area being formed at the outlet 73 of compression mechanism 30 can also have a following shape:
Replace different two circles of diameter, by arbitrary first figure be not the second graph of circle used in the
One figure and second graph both sides have the shape that the two lines at point of contact are formed by connecting.First figure
Size and second graph be sized to different.First figure and second graph can be respectively
Polygon or other shapes.Being shaped as so that outlet 73 can be closed of dump valve 60
Mode coordinate the shape of outlet 73 suitably to be changed.
Embodiment 2
For present embodiment, the difference of main explanation and embodiment 1.
With reference to Fig. 7, compression mechanism 30 is described in detail.
Fig. 7 is corresponding with Fig. 5.
Identical with embodiment 1, it is formed at the open area tool of the outlet 73 of compression mechanism 30
There is following shape: two different for diameter circles are used in the two lines that this two round both sides have point of contact
The shape being formed by connecting.In this two circles, the circle of a larger side be in compression mechanism 30 with
The opposed position in leading section 63, the circle of a less side be in compression mechanism 30 with pars intermedia 62
Opposed position.
In the present embodiment, above-mentioned two lines are the tangent line of above-mentioned two circle.
In the present embodiment, as shown in Figure 7 it is also possible to configure outlet 73 tight at one
The space 72 that the circumference of solid hole 81 and piston 32 are in compression mechanism 30 overall becomes suction chamber
Position of rotation when inner circumferential 78 between.The side of the open area of outlet 73, with away from phase
The mode of the adjacent circumference of fastener hole 81 linearly extends.The opposite side of open area with away from
Piston 32 be in compression mechanism 30 space 72 overall become suction chamber position of rotation when interior
The mode in week 78 linearly extends.Even if therefore fastener hole 81 is arranged at the inner circumferential of cylinder body 31
75 vicinity is it is also possible to avoid outlet 73 and fastener hole 81 to interfere it can be ensured that and piston
32 seal length f, although and can not also can fully obtain as Embodiment 1
The aperture area of outlet 73.
More than, embodiments of the present invention are illustrated but it is also possible to above-mentioned embodiment
In several embodiments be combined to implement.Or can also partly implement above-mentioned embodiment
Any one of or several.Specifically it is also possible to make only with the explanation of above-mentioned embodiment
Any one of part illustrating for " portion ", it would however also be possible to employ several arbitrary combinations.Separately
Outward, the present invention is not limited to above-mentioned embodiment, and can carry out various changes as needed.
Claims (8)
1. a kind of compressor is it is characterised in that possess:
Compression mechanism, it is formed with for the space of compression refrigerant with for will be in described space
The outlet that cold-producing medium after interior compression is discharged；With
Dump valve, consists of including fixed part, leading section and pars intermedia, described fixed part is solid
Due to described compression mechanism, described leading section is closed freely to the opening and closing of described outlet, institute
State pars intermedia to be connected described fixed part with described leading section, and to described together with described leading section
Outlet opening and closing is closed freely,
The opening of the described outlet at the position opposed with described pars intermedia of described compression mechanism
The width in region, less than the described row at the described compression mechanism position opposed with described leading section
The width of the open area of outlet.
2. compressor according to claim 1 it is characterised in that
The opening of the described outlet at the position opposed with described pars intermedia of described compression mechanism
Region, becomes narrow gradually towards the described compression mechanism position opposed with described fixed part.
3. compressor according to claim 1 it is characterised in that
The open area of described outlet has following shape it may be assumed that using two different for diameter circles
In described two round both sides, there is the shape that the two lines at point of contact are formed by connecting.
4. compressor according to claim 1 it is characterised in that
Described compression mechanism has: the piston of ring-type, in the position in the outer part of the periphery than this piston
Form described space, this piston carries out eccentric rotary；Blade, it is with the rotation position with described piston
Put corresponding ratio, described space be divided into the suction chamber of low pressure and the discharge chambe of high pressure,
A part for the open area of described outlet there is following shape it may be assumed that bend to described
Piston integrally becomes the concentric circle of inner circumferential during the position of rotation of described suction chamber positioned at described space
Arcuation.
5. compressor according to claim 4 it is characterised in that
The open area of described outlet has following shape it may be assumed that using two different for diameter circles
In described two round both sides, there is the shape that the two lines at point of contact are formed by connecting, in described two lines
One side is integrally to become during the position of rotation of described suction chamber positioned at described space with described piston
The concentric circular arc of inner circumferential.
6. compressor according to claim 4 it is characterised in that
Described compression mechanism also has: cylinder body, is formed in the position in the inner part of the inner circumferential than this cylinder body
Described space；Bearing, it forms the fastener hole of described outlet and circle, and by being inserted in
The securing member of described fastener hole is fixed on described cylinder body, and the rotary shaft of described piston is supported,
The another part of the open area of described outlet has and bends to and described fastener hole
The shape of the arc-shaped of circumferential concentric.
7. compressor according to claim 6 it is characterised in that
The open area of described outlet has following shape it may be assumed that using two different for diameter circles
In described two round both sides, there is the shape that the two lines at point of contact are formed by connecting, in described two lines
One side is integrally to become during the position of rotation of described suction chamber positioned at described space with described piston
The concentric circular arc of inner circumferential, the opposing party in described two lines is the circumferential concentric with described fastener hole
Circular arc.
8. a kind of refrigerating circulatory device it is characterised in that
Possesses refrigerant loop, any one of this refrigerant loop and claim 1～7
Compressor connects, for refrigerant circulation.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2015/069614 WO2017006454A1 (en) | 2015-07-08 | 2015-07-08 | Compressor and refrigeration cycle device |
| JPPCT/JP2015/069614 | 2015-07-08 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106337814A true CN106337814A (en) | 2017-01-18 |
| CN106337814B CN106337814B (en) | 2019-06-04 |
Family
ID=57024999
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620384435.5U Withdrawn - After Issue CN205618364U (en) | 2015-07-08 | 2016-04-29 | Compressor and refrigeration cycle device |
| CN201610285600.6A Active CN106337814B (en) | 2015-07-08 | 2016-04-29 | Compressor and refrigerating circulatory device |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620384435.5U Withdrawn - After Issue CN205618364U (en) | 2015-07-08 | 2016-04-29 | Compressor and refrigeration cycle device |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP6407432B2 (en) |
| CN (2) | CN205618364U (en) |
| WO (1) | WO2017006454A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6407432B2 (en) * | 2015-07-08 | 2018-10-17 | 三菱電機株式会社 | Compressor and refrigeration cycle apparatus |
| KR20230121233A (en) * | 2022-02-10 | 2023-08-18 | 삼성전자주식회사 | Rotary compressor and home appliance including the same |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05133363A (en) * | 1991-11-07 | 1993-05-28 | Sanyo Electric Co Ltd | Closed type compressor |
| CN104081055A (en) * | 2012-03-23 | 2014-10-01 | 东芝开利株式会社 | Rotating compressor and freeze-cycle apparatus |
| CN203962387U (en) * | 2014-07-02 | 2014-11-26 | 广东美芝制冷设备有限公司 | Refrigerating circulatory device and rotary compressor thereof |
| CN204239263U (en) * | 2014-07-04 | 2015-04-01 | 广东美芝制冷设备有限公司 | Rotary compressor and there is its refrigerating circulatory device |
| CN205618364U (en) * | 2015-07-08 | 2016-10-05 | 三菱电机株式会社 | Compressor and refrigeration cycle device |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3538864B2 (en) * | 1992-10-29 | 2004-06-14 | 三菱電機株式会社 | Reversible rotary compressor and reversible refrigeration cycle |
| JP5111350B2 (en) * | 2007-12-26 | 2013-01-09 | 三菱電機株式会社 | Rotary compressor |
| JP5809852B2 (en) * | 2011-06-08 | 2015-11-11 | 東芝キヤリア株式会社 | Rotary compressor and refrigeration cycle apparatus |
-
2015
- 2015-07-08 JP JP2017527029A patent/JP6407432B2/en active Active
- 2015-07-08 WO PCT/JP2015/069614 patent/WO2017006454A1/en active Application Filing
-
2016
- 2016-04-29 CN CN201620384435.5U patent/CN205618364U/en not_active Withdrawn - After Issue
- 2016-04-29 CN CN201610285600.6A patent/CN106337814B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05133363A (en) * | 1991-11-07 | 1993-05-28 | Sanyo Electric Co Ltd | Closed type compressor |
| CN104081055A (en) * | 2012-03-23 | 2014-10-01 | 东芝开利株式会社 | Rotating compressor and freeze-cycle apparatus |
| CN203962387U (en) * | 2014-07-02 | 2014-11-26 | 广东美芝制冷设备有限公司 | Refrigerating circulatory device and rotary compressor thereof |
| CN204239263U (en) * | 2014-07-04 | 2015-04-01 | 广东美芝制冷设备有限公司 | Rotary compressor and there is its refrigerating circulatory device |
| CN205618364U (en) * | 2015-07-08 | 2016-10-05 | 三菱电机株式会社 | Compressor and refrigeration cycle device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106337814B (en) | 2019-06-04 |
| JP6407432B2 (en) | 2018-10-17 |
| CN205618364U (en) | 2016-10-05 |
| JPWO2017006454A1 (en) | 2017-09-07 |
| WO2017006454A1 (en) | 2017-01-12 |
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