CN104514720A - Rotary compressor - Google Patents
Rotary compressor Download PDFInfo
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- CN104514720A CN104514720A CN201410515395.9A CN201410515395A CN104514720A CN 104514720 A CN104514720 A CN 104514720A CN 201410515395 A CN201410515395 A CN 201410515395A CN 104514720 A CN104514720 A CN 104514720A
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- Prior art keywords
- hole
- diameter
- compression component
- rotary compression
- rotary
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/02—Lubrication; Lubricant separation
- F04C29/028—Means for improving or restricting lubricant flow
Abstract
The present invention provides a rotary compressor, which solves the problem that a second rotary compression component is supplied with excessive oil by using a simple structure. The rotary compressor comprises: an intermediate separator plate (36) separating rotary compression components (32, 34); an oil hole formed in a rotating shaft (16); a through hole (131) formed in the intermediate separator plate (36), and opened at the inner oil hole (12) side and an outer sealed container side (12); and a communicating hole (133) formed in the intermediate separator plate (36) and used for communicating the through hole (131) with a suction side of the second rotary compression component (34). The through hole (131) is composed of a small-diameter hole part (131A) at the oil hole (13) side, and a large-diameter part (131B) at the sealed container (12) side, and the diameter of the large-diameter part (131B) is larger than that of the small-diameter hole part (131A). The communicating hole (133) is communicated with the small-diameter hole part (131A).
Description
Technical field
The present invention relates to a kind of rotary compressor, the the first rotary compression component and the second rotary compression component that are driven by driving component is possessed in seal container, the refrigerant gas that be have compressed by the first rotary compression component is discharged in seal container, and utilizes the refrigerant gas of the second rotary compression component to the intermediate pressure that this is discharged to compress.
Background technique
In the structure of existing this rotary compressor, the particularly rotary compressor of bosom pressure-type multiple compression, refrigerant gas is sucked the low pressure chamber side of cylinder by the suction port from the first rotary compression component, become intermediate pressure because of the operation of roller and blade by compression, from the side, hyperbaric chamber of cylinder through exhaust port, discharge anechoic chamber and be discharged in seal container.And, the refrigerant gas of the intermediate pressure in this seal container is sucked the low pressure chamber side of cylinder by the suction port from the second rotary compression component, the compression of the second level is carried out in operation because of roller and blade, become the refrigerant gas of High Temperature High Pressure, from side, hyperbaric chamber through exhaust port, discharge anechoic chamber and flow into outside radiator etc. (for example, referring to patent documentation 1).
In addition, the oilhole being formed with vertical at running shaft Nei Zhou center and the oil supply hole of transverse direction be communicated with this oilhole, utilize the oil pump (oil feeding mechanism) being installed on running shaft lower end, pick up oil from the trapped fuel portion of seal container inner bottom part and make it increase oilhole, be supplied to the slide part in running shaft and rotary compression component from oil supply hole, carry out lubricating and sealing.
In this rotary compressor, by refrigeration agent large for height pressure reduction, such as using the carbon dioxide (CO as natural refrigerant
2) as refrigeration agent when, refrigerant pressure reaches 12MPaG in the second rotary compression component becoming high pressure, on the other hand, in the first rotary compression component becoming rudimentary side, becomes 8MPaG (intermediate pressure).
Prior art document
Patent documentation
Patent documentation 1: Japanese Unexamined Patent Publication 2004-108165 publication
Summary of the invention
The technical problem solved is wanted in invention
Herein, in this rotary compressor, become compared with the pressure (intermediate pressure) in the seal container in trapped fuel portion with bottom, pressure (high pressure) in the cylinder of the second rotary compression component is high, from oilhole and the oil supply hole of running shaft, utilize pressure difference in the cylinder of the second rotary compression component, supply oil extremely difficult, only utilize the oil dissolved in suction refrigeration agent to lubricate specially.
Therefore, in the prior art, the demarcation strip separated by each rotary compression component is formed the through hole of the through seal container side to outside from the oilhole side of running shaft, and form at the cylinder of formation second rotary compression component the intercommunicating pore be communicated with the suction side of the second rotary compression component by through hole, the suction pressure in inhalation process is utilized to lose, from oilhole to the suction side of the second rotary compression component for oil supply.
But, in the prior art, form the through hole that the diameter of easily processing is larger, therefore, produce to the second rotary compression component superfluous ground such problem of confession oil supply.
The present invention produces to solve this existing technical task, provides a kind of and simple structure can be adopted to solve to the second rotary compression component superfluous ground rotary compressor of confession oil supply this situation.
For the technological scheme of technical solution problem
In order to solve above-mentioned problem, rotary compressor of the present invention is characterised in that, possess by the shaft-driven first rotary compression component of the rotation of driving component and the second rotary compression component in seal container, the refrigerant gas that be have compressed by the first rotary compression component is discharged in seal container, and utilize the refrigerant gas of the second rotary compression component to the intermediate pressure that this is discharged to compress, this rotary compressor comprises: for forming the cylinder of each rotary compression component respectively; Be arranged in each cylinder, and the roller of eccentric rotary chimeric with the eccentric part of running shaft; Between each cylinder and each roller, by the middle demarcation strip that each rotary compression component is separated; Close the opening surface of each cylinder respectively, there is the support unit of the bearing of running shaft; Be formed at the oilhole on running shaft; Be formed on middle demarcation strip, at the through hole of the oilhole side of inner side and the seal container side opening in outside; Be formed on middle demarcation strip, for the intercommunicating pore be communicated with the suction side of the second rotary compression component by through hole, through hole is by the minor diameter part of oilhole side and form at the large-diameter portion that seal container side diameter is larger than minor diameter part, and intercommunicating pore is communicated with minor diameter part.
In addition, the feature of rotary compressor is, the diameter of minor diameter part is less than more than 10% 80% of the diameter of large-diameter portion.
In addition, the feature of rotary compressor is, in each invention above-mentioned, the length of minor diameter part is less than more than 10% 90% of through hole total length.
In addition, the feature of rotary compressor is, the diameter of above-mentioned intercommunicating pore is less than the diameter of above-mentioned minor diameter part.
Invention effect
According to the present invention, in the rotary compressor of so-called bosom pressure-type multistage compression type, comprising: for forming the cylinder of each rotary compression component respectively; Be arranged in each cylinder, and the roller of eccentric rotary chimeric with the eccentric part of running shaft; Between each cylinder and each roller, by the middle demarcation strip that each rotary compression component is separated; Close the opening surface of each cylinder respectively, there is the support unit of the bearing of running shaft; Be formed at the oilhole on running shaft; Be formed on middle demarcation strip, the through hole of oilhole side to the inside and the seal container side opening in outside; Be formed on middle demarcation strip, for the intercommunicating pore that through hole is communicated with the suction side of the second rotary compression component, through hole is by the minor diameter part of oilhole side and form at the large-diameter portion that seal container side diameter is larger than minor diameter part, intercommunicating pore is communicated with minor diameter part, so, the oilhole of running shaft is communicated with intercommunicating pore by the minor diameter part of through hole with the suction side of the second rotary compression component, the oil mass of the suction side of inflow second rotary compression component can be limited, thus the problem of the oil to the second rotary compression component excess supply can be solved.
In addition, form the shape of large-diameter portion at seal container inner opening, the refrigeration agent in seal container successfully flows into through hole from this large-diameter portion, enter intercommunicating pore, so, utilize from the refrigeration agent in this seal container, also effectively can limit the amount of the oil to the second rotary compression component supply.
In the case, as as described in the invention of technological scheme 2 and technological scheme 3, by make the diameter of minor diameter part be the diameter of large-diameter portion less than more than 10% 80% and make the length of minor diameter part be less than more than 10% 90% of the total length of through hole, thereby, it is possible to solve the refrigeration agent in the problem and the seal container of suitable control action on large-diameter portion of the oil of the second rotary compression component excess supply.
Accompanying drawing explanation
Fig. 1 is the longitudinal section side view of the bosom pressure type multiple compression rotary compressor being suitable for embodiments of the invention.
Fig. 2 is the planimetric map of the middle demarcation strip of the rotary compressor of Fig. 1.
Fig. 3 is the longitudinal section side view of the middle demarcation strip of the rotary compressor of Fig. 1.
Description of reference numerals
OL trapped fuel portion
10 rotary compressors
12 seal containers
13 oilholes
14 electrical components
16 running shafts
18 rotation/compression mechanism section
22 stators
24 rotors
32 first rotary compression components
34 second rotary compression components
36 middle demarcation strips
38,40 cylinders
54 upper support member
56 lower support parts
82,84 tank filler sleeves
131 through holes
131A diameter holes portion (minor diameter part)
Hole portion, 131B large footpath (large-diameter portion)
133 intercommunicating pores
134 intercommunicating pores
Embodiment
Below, with reference to the accompanying drawings embodiments of the present invention are described in detail.
In FIG, 10 is by carbon dioxide (CO
2) as the rotary compressor of the bosom pressure type multiple compression of refrigeration agent, this rotary compressor 10 comprises seal container 12 and the rotary compression component portion 18 of the cylindrical shape be made up of steel plate, wherein, rotary compression component portion 18 comprises: configuration is accommodated in the electrical components 14 as driving component of the upside of the inner space of this seal container 12; Be configured at the downside of this electrical components 14 and the first rotary compression component 32 (first order) driven by the running shaft 16 of electrical components 14 and the second rotary compression component 34 (second level).In addition, the volume ratio of the first rotary compression component 32 of the rotary compressor 10 of the present embodiment is large as the volume of the second rotary compression component 34 of the second level.
Seal container 12 comprises: using bottom as trapped fuel portion OL, the vessel 12A of storage electrical components 14 and rotary compression component portion 18; With roughly bowl-shape end cap (lid) 12B of the upper opening of closed this vessel 12A, and in the upper surface of this end cap 12B, be formed centrally circular mounting hole 12D, the terminal (omission distribution) 20 for powering to electrical components 14 is installed in this mounting hole 12D.
Electrical components 14 is stators 22 of being installed in the form of a ring by the inner peripheral surface of the upper space along seal container 12 and inserts the series excitation DC motor being configured at the rotor 24 inside this stator 22 and forming with being provided with some gaps, utilizes inverter to carry out revolution and moment of torsion controls.In addition, this electrical components 14 utilizes inverter, starts with low speed when rotary compressor starts, and then controls its revolution, makes to be increased to desired revolution.In addition, above-mentioned rotor 24 is fixed on the running shaft 16 that extended in vertical by center.
Stator 22 comprises: the duplexer 26 be laminated by the electromagnetic steel plate of ring-type; With the staor winding 28 adopting series excitation (concentrating winding) mode to be wound on the teeth portion of this duplexer 26.In addition, rotor 24 also duplexer 30 by electromagnetic steel plate same with stator 22 is formed, in this duplexer 30, insert permanent magnet MG.
In addition, the oil pump 102 as oil feeding mechanism is formed in the underpart of running shaft 16.Utilize this oil pump 102, from be formed in seal container 12 bottom trapped fuel portion OL pick up lubrication oil, through the oilhole 13 formed in vertical at running shaft 16 Nei Zhou center, from the oil supply hole 82,84 (being also formed at upper and lower eccentric part 42,44) of the transverse direction be communicated with this oilhole 13, the fuel feeding such as slide part of eccentric part 42,44, first and second rotary compression component 32,34 up and down.Thus, prevent the wearing and tearing of the first and second rotary compression components 32,34 and seal.
Middle demarcation strip 36 is clipped between the first above-mentioned rotary compression component 32 and the second rotary compression component 34.That is, the first rotary compression component 32 and the second rotary compression component 34 comprise: middle demarcation strip 36; Be configured at the upper and lower upper and lower air cylinders 38,40 of this middle demarcation strip 36; Eccentric part up and down on running shaft 16 42, the 44 chimeric and up-down rollers 46,48 of eccentric rotary are arranged at the phase difference with 180 degree in this upper and lower air cylinders 38,40; Abut with this up-down rollers 46,48, the described later not shown blade of low pressure chamber side and side, hyperbaric chamber will be divided in upper and lower air cylinders 38,40 respectively; The opening surface of the downside of the opening surface of the upside of upper cylinder 38 and lower cylinder 40 is closed, as the upper support member 54 of support unit of bearing and the lower support parts 56 that double as running shaft 16.
On upper support member 54 and lower support parts 56, be formed through the suction passage 58,60 that intakeport 161,162 is communicated with the inside of upper and lower air cylinders 38,40 respectively and the discharge anechoic chamber 62,64 of caving in, and these two are discharged being closed by outer cover respectively with the opening portion of each cylinder 38,40 opposite side of anechoic chamber 62,64.That is, discharge anechoic chamber 62 to be closed by the top outer cover 66 as outer cover, discharge anechoic chamber 64 and closed by the bottom outer cover 68 as outer cover.
In the case, formation bearing 54A is erect in the central authorities of upper support member 54.In addition, bearing 56A is formed at the middle thereof of lower support parts 56.So running shaft 16 is kept by the bearing 54A of upper support member 54 and the bearing 56A of lower support parts 56.
Bottom outer cover 68 is made up of the circular steel plate of ring-type, is fixed on from below on lower support parts 56 at the kingbolt 129 that utilizes everywhere of periphery.Front end and the upper support member 54 of this kingbolt 129 screw togather.
The exhaust port (not shown) be communicated with discharge anechoic chamber 64 in the hyperbaric chamber of lower cylinder 40 is formed at lower support parts 56.
And, the discharge anechoic chamber 64 of the first rotary compression component 32 is communicated with by communication path with in seal container 12, this communication path be by lower support parts 56, upper support member 54, top outer cover 66, upper and lower air cylinders 38,40, the through not shown hole of middle demarcation strip 36.In the case, erect in the upper end of communication path and be provided with middle discharge tube 121, in seal container 12, discharge the refrigeration agent of intermediate pressure from this middle discharge tube 121.
In addition, top outer cover 66 divides the discharge anechoic chamber 62 utilizing not shown exhaust port to be communicated with upper cylinder 38 inside of the second rotary compression component 34, in the upside of this top outer cover 66, vacates predetermined distance be provided with electrical components 14 with top outer cover 66.This top outer cover 66 by the through hole of the bearing 54A being formed with above-mentioned upper support member 54, roughly the circular steel plate of ring-type form, periphery is fixed on upper support member 54 from top by 4 kingbolts 78.Front end and the lower support parts 56 of this kingbolt 78 screw togather.
Herein, on middle demarcation strip 36, be formed with the through hole 131 seal container 12 side of roller 46 inner side and outer side of oilhole 13 side as inner side (in seal container 12) be communicated with as shown in Figure 2 and Figure 3 by the cutting of boring., between middle demarcation strip 36 and running shaft 16, form a little gap herein, (the space of eccentric part 42 periphery inside roller 46 inside the upside in this gap and roller 46.The position residing for oil supply hole 82 be communicated with oilhole 13) be communicated with.In addition, middle demarcation strip 36 is communicated with (space of eccentric part 44 periphery inside roller 48) inside roller 48 with the downside in the gap between running shaft 16.
That is, through hole 131 is from the through middle demarcation strip 36 of the seal container 12 in oilhole 13 side to the outside of the running shaft 16 of inner side, side opening in oilhole 13 side of running shaft 16 and seal container 12.In addition, through hole 131 comprises: diameter holes portion (minor diameter part) 131A (in an embodiment about 2mm) of oilhole 13 side (inner side); With at this seal container 12 side (outside) diameter large footpath hole portion (large-diameter portion) 131B (in an embodiment about 3mm) larger than this diameter holes portion 131A, diameter holes portion 131A is at running shaft 16 side opening, and hole portion, large footpath 131B is at seal container 12 inner opening.In addition, the diameter of this hole portion, large footpath 131B is identical with existing through hole.
Hole form this through hole 131 time, such as, prepare the drill bit of two kinds of diameters, first, to be cut to the middle part the direction, footpath of middle demarcation strip 36 from the outside of middle demarcation strip 36 with the large drill bit of diameter.Thus, hole portion, large footpath 131B is got out.Next, drill bit made into the little drill bit of diameter and insert in hole portion, large footpath 131B, being cut to running shaft 16 side from its terminal, getting out diameter holes portion 131A.Thus, between diameter holes portion 131A and large hole, footpath portion 131B, the stepped part 131C orthogonal with the axle direction of breakthrough part 131 is formed with.In addition, stepped part 131C can for going the shape of undergauge from hole portion, large footpath 131B to diameter holes portion 131A.
In addition, the intercommunicating pore (vertical hole) 133 extended to upside is got out in the part that the diameter holes portion 131A with through hole 131 is corresponding.On the middle demarcation strip 36 of the part corresponding with diameter holes portion 131A, the bit cutting utilizing diameter superfine processes this intercommunicating pore 133.In addition, its diameter adopts the diameter (be in an embodiment 1mm) less than diameter holes portion 131A.
On the other hand, the intercommunicating pore 134 of the injection be communicated with suction port 161 (suction side of the second rotary compression component 34) by the intercommunicating pore 133 of middle demarcation strip 36 is got out at upper cylinder 38.
In addition, as mentioned above, the opening of running shaft 16 side of the diameter holes portion 131A of the through hole 131 of middle demarcation strip 36 is communicated with oilhole 13 by oil supply hole 82,84.As described later, intermediate pressure is become in seal container 12, therefore, be difficult to fuel feeding in the upper cylinder 38 becoming high pressure in the second level, but, middle demarcation strip 36 adopts this structure, thus, pick up and the oil rising oilhole 13, flow out from oil supply hole 82,84 from the trapped fuel portion OL of seal container 12 inner bottom part, enter in the diameter holes portion 131A of the through hole 131 of middle demarcation strip 36, through intercommunicating pore 133,134, be supplied to the suction side (suction port 161) of upper cylinder 38.
In the case, the pressure (suction pressure) of the suction side of upper cylinder 38 in suction process because of suction pressure loss, decline compared with the pressure of running shaft 16 side of middle demarcation strip 36.During this period through the oilhole 13 of running shaft 16, from diameter holes portion 131A, the intercommunicating pore 133 of oil supply hole 82,84 through the through hole 131 of middle demarcation strip 36, from the intercommunicating pore 134 of upper cylinder 38, in upper cylinder 38, spray oil, thus carry out fuel feeding.
But, diameter holes portion 131A is employing path compared with prior art (with large footpath hole portion 131B same diameter), intercommunicating pore 133 adopts the path less than this diameter holes portion 131A, so the oil mass be supplied in the upper cylinder 38 of the second rotary compression component 34 is compared with prior art restricted.
On the other hand, hole portion, the large footpath 131B of middle demarcation strip 36 is at seal container 12 inner opening, therefore, the refrigeration agent of the intermediate pressure in seal container 12 flows in through hole 131 from the opening of this hole portion, large footpath 131B, then, from intercommunicating pore 133 after a part (short distance) of the diameter holes portion 131A in outside, flow into the suction side (suction port 161) of upper cylinder 38 from intercommunicating pore 133.That is, the refrigeration agent in seal container 12 successfully arrives intercommunicating pore 133 through the large footpath hole portion 131B that diameter is larger than diameter holes portion 131A, so nonetheless, in upper cylinder 38, the oil mass of supply also can be restricted.
In addition, as previously mentioned, when utilizing inverter control electrical components 14, controlling revolution when compressor start makes it start with low speed, so, when rotary compressor 10 starts, even if pick up oil by through hole 131 from the trapped fuel portion OL of seal container 12 inner bottom part, the harmful effect caused because of hydraulic compression is also suppressed.
And, in the case, as refrigeration agent, consider environmental protection, combustibility and toxicity etc., be used as the above-mentioned carbon dioxide (CO of natural refrigerant
2), the oil as the lubricant oil enclosed in seal container 12 such as uses the oil that mineral oil, alkylbenzene oil, ether oil, ester oil, PAG (poly-alkyl diol) etc. are known.In addition, the kind of refrigeration agent and oil is not limited to these.
In the side of the vessel 12A of seal container 12, with the suction passage 58 of upper support member 54 and lower support parts 56,60, discharge position corresponding to the upside (position substantially corresponding with the lower end of electrical components 14) of anechoic chamber 62 and top outer cover 66, be welded with sleeve pipe 141,142,143 and 144 respectively.Sleeve pipe 141 and 142 is neighbouring, and sleeve pipe 143 is positioned on the roughly diagonal of sleeve pipe 141.In addition, sleeve pipe 144 is positioned at the position of 90 degree of roughly staggering with sleeve pipe 141.
And insert the one end connecting and be used for the refrigeration agent ingress pipe 92 importing refrigerant gas to upper cylinder 38 in sleeve pipe 141, one end of this refrigeration agent ingress pipe 92 is communicated with the suction passage 58 of upper cylinder 38.This refrigeration agent ingress pipe 92 arrives sleeve pipe 144 by the upside of seal container 12, and the other end is inserted in sleeve pipe 144 and is connected with it, is communicated with in seal container 12.
In addition, in sleeve pipe 142, insert the one end connecting and be used for the refrigeration agent ingress pipe 94 importing refrigerant gas to lower cylinder 40, one end of this refrigeration agent ingress pipe 94 is communicated with the suction passage 60 of lower cylinder 40.In addition, insert and connect refrigerant discharge leader 96 in sleeve pipe 143, one end of this refrigerant discharge leader 96 is communicated with discharge anechoic chamber 62.
Below according to above structure description operation.By terminal 20 and not shown distribution, after being energized from above-mentioned inverter to the staor winding 28 of electrical components 14, electrical components 14 starts, and rotor 24 rotates.Starting is now carried out with low speed as mentioned above, then speedup.According to this rotation, in upper and lower air cylinders 38,40, carry out eccentric rotary with the eccentric part up and down 42 be arranged at integratedly on running shaft 16,44 chimeric up-down rollers 46,48.
Thus, via refrigeration agent ingress pipe 94 and the suction passage 60 be formed on lower support parts 56, the refrigerant gas of the low pressure (4MPaG) of the low pressure chamber side of lower cylinder 40 is inhaled into from suction port 162, because of roller 48 and not shown blade operation and compressed, become intermediate pressure (8MPaG), from the side, hyperbaric chamber of lower cylinder 40, via being formed at the exhaust port (not shown) of lower support parts 56 via discharge anechoic chamber 64,, from discharge, anechoic chamber 64 discharges from middle discharge tube 121 via communication path (not shown) in seal container 12.
And the refrigerant gas of the intermediate pressure in seal container 12 flows out from sleeve pipe 144, via refrigeration agent ingress pipe 92 and the suction passage 58 be formed on upper support member 54, be inhaled into the low pressure chamber side of upper cylinder 38 from suction port 161.
On the other hand, after rotary compressor 10 starts, from the oil that the opening of seal container 12 side of hole portion, the large footpath 131B of through hole 131 invades, be inhaled into the low pressure chamber side of the upper cylinder 38 of the second rotary compression component 34 through intercommunicating pore 133, intercommunicating pore 134.And, be inhaled into refrigerant gas and the oil of the intermediate pressure of the low pressure chamber side of upper cylinder 38, carry out the compression of the second level because of roller 46 and the operation of not shown blade.Therefore, refrigerant gas becomes High Temperature High Pressure (12MPaG).
In the case, the oil invaded from the opening of seal container 12 side of hole portion, the large footpath 131B of through hole 131 and the refrigerant gas of intermediate pressure are together compressed, but, when rotary compressor 10 utilizes inverter startup, control its revolution thus make at low speed, therefore, moment of torsion is also little, so, even if compressed oil, also hardly rotary compressor 10 is had an impact, can common running be carried out.
And revolution rises according to the control pattern of regulation, and final electrical components 14 operates with desired revolution.Pasta in running is positioned at the downside of through hole 131, but, from the diameter holes portion 131A of above-mentioned through hole 131 through intercommunicating pore 133 and intercommunicating pore 134, to the suction side fuel feeding of the second rotary compression component 34, therefore, it is possible to avoid the shortage of oil of the slide part of the second rotary compression component 34.
As previously discussed, in the rotary compressor 10 of bosom pressure-type multiple compression, comprising: for forming the cylinder 38,40 of each rotary compression component 32,34 respectively; Be arranged in each cylinder 38,40, with the eccentric part 42 of running shaft 16, the 44 chimeric and rollers 46,48 of eccentric rotary; Between each cylinder 38,40 and each roller 46,48, by the middle demarcation strip 36 that each rotary compression component 32,34 is separated; Be formed at the oilhole 13 on running shaft 16; Be formed on middle demarcation strip 36, at the through hole 131 of oilhole 13 side of inner side and seal container 12 side opening in outside; Be formed on middle demarcation strip 36, for the intercommunicating pore 133 be communicated with the suction side of the second rotary compression component 34 by through hole 131, in this rotary compressor, through hole 131 comprises: the diameter holes portion 131A of oilhole 13 side; With at the seal container 12 side diameter large footpath hole portion 131B larger than diameter holes portion 131A, intercommunicating pore 133 is communicated with diameter holes portion 131A, so, the oilhole 13 of running shaft 16 is communicated with intercommunicating pore 133 with the diameter holes portion 131A of the suction side of the second rotary compression component 34 by through hole 131, the oil mass of the suction side of inflow second rotary compression component 34 can be limited, thus the problem of the oil to the second rotary compression component 34 excess supply can be solved.
In addition, form the shape of hole portion, large footpath 131B at seal container 12 inner opening, refrigeration agent in seal container 12 successfully flows into through hole 131 from this hole portion, large footpath 131B, enter intercommunicating pore 133, so, utilize from the refrigeration agent in this seal container 12, also effectively can limit the amount of the oil supplied to the second rotary compression component 34.
In the case, do not reduce the diameter of all through holes, seal container 12 side is hole portion, large footpath 131B, so, also can suppress the deterioration getting out the processability of through hole 131 on middle demarcation strip 36 to greatest extent.Particularly, after getting out hole portion, large footpath 131B from the outside of middle demarcation strip 36 to the middle part on the direction, footpath of this middle demarcation strip 36, diameter holes portion 131A is got out from the terminal of this hole portion, large footpath 131B, so, prepare two kinds for the different drill bit of the diameter of cutting, first hole portion, large footpath 131B is cut with the drill bit in large footpath from the outside of middle demarcation strip 36, then the drill bit of path is inserted in this hole portion, large footpath 131B, if from its terminal cutting diameter holes portion 131A, can improve, processability significantly improves.
In view of improving this processability and solving from diameter holes portion 131A by the problem of intercommunicating pore 133 to the oil of upper cylinder 38 excess supply, suitable control action is at the refrigeration agent of the intermediate pressure of hole portion, large footpath 131B, the total length L1 of through hole 131, the length L2 of diameter holes portion 131A and diameter D1, be with the relation of the diameter D2 of hole portion, large footpath 131B, the diameter D1 of diameter holes portion 131A is less than more than 10% 80% of the diameter D2 of hole portion, large footpath 131B, preferred diameter D2 is about 3mm, diameter D1 is about 2mm, diameter D1 is about 67% of diameter D2, in addition, the length L2 of diameter holes portion 131A is less than more than 10% 90% of the total length L1 of through hole 131, the pressure loss compared with the diameter D1 of minor diameter part 131A is fixed, preferred total length L1 is about 51mm, length L2 is about 29mm, length L2 is about 60% of total length L1.
Namely, the diameter D1 of the diameter holes portion 131A of through hole 131 be less than more than 10% 80%, preferably about about 67% of the diameter D2 of hole portion, large footpath 131B and the length L2 of diameter holes portion 131A be less than more than 10% 90%, preferably about about 60% of the total length L1 of through hole 131, thereby, it is possible to solve to the oil of the second rotary compression component 34 excess supply problem and suitably control action at the refrigeration agent (in seal container 12) of the intermediate pressure of hole portion, large footpath 131B.
In addition, in the present embodiment, the upside being formed at the gap between middle demarcation strip 36 and running shaft 16 is communicated with inside roller 46, downside is communicated with inside roller 48, but being not limited to this, also can be upside and the situation about being communicated with inside roller 46 (downside not with situation about being communicated with inside roller 48) in the gap be only formed between middle demarcation strip 36 and running shaft 16.In addition, also can be separated by middle demarcation strip 36 inside roller 46 He inside roller 48.In the case, form the hole with the axis direction be communicated with inside roller 46 at the middle part of the diameter holes portion 131A of the through hole 131 of middle demarcation strip, thereby, it is possible to from oil supply hole 82 to the suction side of the second rotary compression component 132 for oil supply.
In addition, in the present embodiment, to electrical components 14 for direct current motor is illustrated, but electrical components 14 is not limited thereto.In addition, electrical components 14 is made when starting with the motor of the rotating speed control type of low speed starting by adopting, even if the second rotary compression component 34 sucks the oil in seal container 12 from through hole 131 when starting, the harmful effect caused because of compressed oil also can be suppressed.Its result, also can avoid the decline of the reliability of rotary compressor.
In addition, in the present embodiment, utilize the two stage compression type rotary compressor possessing the first rotary compression component and the second rotary compression component, rotary compressor is illustrated, but be not limited to this, rotary compression component also goes for possessing three grades, the multistage compression type rotary compressor of level Four or its above rotary compression component.
Claims (5)
1. a rotary compressor, is characterized in that:
Arrange by the shaft-driven first rotary compression component of the rotation of driving component and the second rotary compression component in seal container, the refrigerant gas that be have compressed by described first rotary compression component is discharged in described seal container, and utilize the refrigerant gas of described second rotary compression component to the intermediate pressure that this is discharged to compress
Described rotary compressor comprises:
For forming the cylinder of each rotary compression component described respectively;
Be arranged in each cylinder, and the roller of eccentric rotary chimeric with the eccentric part of described running shaft;
Between each cylinder described and each roller described, by the middle demarcation strip that each rotary compression component described is separated;
Close the opening surface of each cylinder described respectively, there is the support unit of the bearing of described running shaft;
Be formed at the oilhole on described running shaft;
Be formed on described middle demarcation strip, at the through hole of the described oilhole side of inner side and the described seal container side opening in outside; With
Be formed on described middle demarcation strip, for the intercommunicating pore that described through hole is communicated with the suction side of described second rotary compression component,
Described through hole is by the minor diameter part of described oilhole side and form at the large-diameter portion that described seal container side diameter is larger than described minor diameter part,
Described intercommunicating pore is communicated with described minor diameter part.
2. rotary compressor as claimed in claim 1, is characterized in that,
The diameter of described minor diameter part is less than more than 10% 80% of the diameter of described large-diameter portion.
3. rotary compressor as claimed in claim 1 or 2, is characterized in that:
The length of described minor diameter part is less than more than 10% 90% of described through hole total length.
4. rotary compressor as claimed in claim 1 or 2, is characterized in that:
The diameter of described intercommunicating pore is less than the diameter of described minor diameter part.
5. rotary compressor as claimed in claim 3, is characterized in that:
The diameter of described intercommunicating pore is less than the diameter of described minor diameter part.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2013-203527 | 2013-09-30 | ||
| JP2013203527A JP2015068262A (en) | 2013-09-30 | 2013-09-30 | Rotary compressor |
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|---|---|
| CN104514720A true CN104514720A (en) | 2015-04-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410515395.9A Pending CN104514720A (en) | 2013-09-30 | 2014-09-29 | Rotary compressor |
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| Country | Link |
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| JP (1) | JP2015068262A (en) |
| CN (1) | CN104514720A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105386979A (en) * | 2015-12-07 | 2016-03-09 | 珠海凌达压缩机有限公司 | Compressor pump body and compressor provided with same |
| CN108626127A (en) * | 2017-03-24 | 2018-10-09 | 上海海立电器有限公司 | A kind of compressor |
| CN110678655A (en) * | 2017-05-26 | 2020-01-10 | Lg电子株式会社 | Rotary compressor |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106246551B (en) | 2016-09-18 | 2018-04-13 | 珠海格力节能环保制冷技术研究中心有限公司 | Bent axle, pump assembly and compressor |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003176796A (en) * | 2001-12-11 | 2003-06-27 | Sanyo Electric Co Ltd | Rotary compressor |
| JP2004108165A (en) * | 2002-09-13 | 2004-04-08 | Sanyo Electric Co Ltd | Rotary compressor |
| CN1532420A (en) * | 2003-03-25 | 2004-09-29 | ������������ʽ���� | Rotary compressor |
| JP2004293330A (en) * | 2003-03-25 | 2004-10-21 | Sanyo Electric Co Ltd | Rotary compressor |
| JP2004337997A (en) * | 2003-05-13 | 2004-12-02 | Mitsubishi Materials Corp | Stepped deep hole machining method and stepped drill |
| JP2006257960A (en) * | 2005-03-17 | 2006-09-28 | Sanyo Electric Co Ltd | Hermetic compressor |
-
2013
- 2013-09-30 JP JP2013203527A patent/JP2015068262A/en active Pending
-
2014
- 2014-09-29 CN CN201410515395.9A patent/CN104514720A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003176796A (en) * | 2001-12-11 | 2003-06-27 | Sanyo Electric Co Ltd | Rotary compressor |
| JP2004108165A (en) * | 2002-09-13 | 2004-04-08 | Sanyo Electric Co Ltd | Rotary compressor |
| CN1532420A (en) * | 2003-03-25 | 2004-09-29 | ������������ʽ���� | Rotary compressor |
| JP2004293330A (en) * | 2003-03-25 | 2004-10-21 | Sanyo Electric Co Ltd | Rotary compressor |
| JP2004337997A (en) * | 2003-05-13 | 2004-12-02 | Mitsubishi Materials Corp | Stepped deep hole machining method and stepped drill |
| JP2006257960A (en) * | 2005-03-17 | 2006-09-28 | Sanyo Electric Co Ltd | Hermetic compressor |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105386979A (en) * | 2015-12-07 | 2016-03-09 | 珠海凌达压缩机有限公司 | Compressor pump body and compressor provided with same |
| CN108626127A (en) * | 2017-03-24 | 2018-10-09 | 上海海立电器有限公司 | A kind of compressor |
| CN108626127B (en) * | 2017-03-24 | 2019-11-19 | 上海海立电器有限公司 | A kind of compressor |
| CN110678655A (en) * | 2017-05-26 | 2020-01-10 | Lg电子株式会社 | Rotary compressor |
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| Publication number | Publication date |
|---|---|
| JP2015068262A (en) | 2015-04-13 |
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Application publication date: 20150415 |