CN205977674U - Rotary compressor and have its refrigeration cycle device - Google Patents

Abstract

The utility model discloses a rotary compressor and have its refrigeration cycle device. Having accomodate electronic motor and compressing mechanism portion in rotary compressor's the sealed casing, being equipped with on the casing and inhaleing the pipe, the bottom of casing is equipped with the oil storage tank of storing lubricating oil, and compressing mechanism portion includes cylinder, piston, gleitbretter, bent axle and bearing, and the cylinder is equipped with the compression chamber. Gaseous from compressing chamber exhaust oiliness refrigerant, the process disposes the gas passage in between bent axle and bearing at least, inside the casing of discharging. According to the utility model discloses a rotary compressor reduces the oil extraction volume of compressor, need not to increase the oil mass that seals of compressor on guaranteeing the sufficient basis of compressing mechanism portion fuel feeding.

Description

Rotary compressor and the refrigerating circulatory device with it

Technical field

This utility model is related to refrigerating field, especially relates to a kind of rotary compressor and the kind of refrigeration cycle dress with it Put.

Background technology

Existing rotary compressor, for the lubrication of bent axle and piston, using the centrifugation oil feed pump using crank up.But It is to apply the centrifugation oil feed pump of the rotary compressor in air-conditioning etc., can lead to occur in low exogenous QI warm start, defrosting operating, height A large amount of oil drain quantities under multiple operation modes of speed operating and problem that in the compressor that causes, oil mass (fuel head) declines, fuel feeding Pump amount deficiency is changed into the main cause of compressor fault.

The oil feed pump amount deficiency leading to improve oil mass (fuel head) to decline, the oil sealing amount increasing compressor is normal Know., if the coolant enclosed volume of kind of refrigeration cycle is 1000g taking air-conditioning as a example, the benchmark of oil sealing amount be coolant enclosed volume 30～ 45%.But, increase oil sealing amount, the oil drain quantity of kind of refrigeration cycle can be increased, the not only oil mass in compressor (pasta) variation can increase Plus, the coolant enclosed volume in lubricating oil also can increase.That is, increasing oil sealing amount, not only there is no solve problem at all, and Also it is unfavorable for the miniaturization of compressor, also have the hidden danger increasing cost and environmental protection aspect.

Utility model content

This utility model is intended at least solve one of technical problem in correlation technique to a certain extent.

For this reason, the utility model proposes a kind of rotary compressor, reducing the oil drain quantity of compressor and ensure compression mechanical part Fuel feeding is sufficient.

This utility model also proposes a kind of refrigerating circulatory device with above-mentioned rotary compressor.

According to the rotary compressor of this utility model embodiment, receive electric motor in the housing of sealing and by described electricity Move motor-driven compression mechanical part, described housing is provided with suction tube, the bottom of described housing is provided with the storage of storage lubricating oil Oil groove, described compression mechanical part includes cylinder, piston, slide plate, bent axle and bearing, and described cylinder is provided with compression chamber, described piston Bias is pivotally located at described compression intracavity, and described slide plate is reciprocally located on described cylinder, and described bent axle drives described Piston eccentric rotary, described bearing and described bent axle cooperation；The oil-containing cold media gas discharged from described compression chamber, at least through joining It is placed in the gas passage between described bent axle and described bearing, be discharged to described enclosure interior.

According to the rotary compressor of this utility model embodiment, the oil-containing cold media gas discharged from compressor are in gas coming through Compression mechanical part being played during path with the effect of lubrication, reducing the oil drain quantity of compressor, thus not causing oil storage The liquid level of the lubricating oil in groove declines to a great extent, and then need not increase compressor on the basis of ensureing compression mechanical part fuel feeding abundance Oil sealing amount, not only can avoid compressor that wear-out failure and so that compressor miniaturization occur.

In some embodiments of the present utility model, described oil-containing cold media gas at least include returning to from described suction tube The lubricating oil of described compression chamber.

In some embodiments of the present utility model, perforate passes through the inclined of described piston in the oily hand-hole of described compression chamber The reciprocating motion of heart revolution or described slide plate is opened and closed, and the lubricating oil in described oil storage tank passes through described oil hand-hole injection To described compression intracavity.

In some embodiments of the present utility model, the area of passage of described gas passage is more than the whole of described compression chamber The total open area of tap.

In some embodiments of the present utility model, a part for described oil-containing cold media gas flows out to described cylinder and institute State the sliding surface between slide plate.

In some embodiments of the present utility model, from described compression chamber discharge described oil-containing cold media gas via noise reduction It is drained into after device in described gas passage.

In some embodiments of the present utility model, described gas passage is at least by the axle being configured in described bent axle The pore that hole, the oil groove being configured between described bent axle and described bearing are connected with described axle mesopore and described oil groove is constituted.

In some embodiments of the present utility model, described bent axle and described bearing are slidably matched, or described bent axle and It is provided with rolling bearing between described bearing.

In some examples of the present utility model, described axle mesopore has the axle head being located at described bent axle and described bent axle Perforate on periphery wall.

Further, at least one described perforate is located in the deafener being located on described bearing.

In other examples of the present utility model, described axle mesopore runs through described bent axle in the axial direction.

In further embodiment of the present utility model, rotary compressor also includes the institute for separating in the hole in described axle State the oil eliminator of the lubricating oil in oil-containing cold media gas.

In some embodiments of the present utility model, the rotor of described electric motor is provided with parallel to described bent axle The side of pivot center extends upward through the rotor pore of described rotor.

According to the refrigerating circulatory device of this utility model embodiment, including the rotation according to this utility model above-described embodiment Compressor.

According to the refrigerating circulatory device of this utility model embodiment, by being provided with above-mentioned rotary compressor, can reduce The oil drain quantity of compressor, reduces the oil sealing amount of compressor, and can ensure that the reliability service of compressor.

Further, the coolant quantity (quality R) of described refrigerating circulatory device and the ratio of lubricants capacity (quality L) are enclosed (L/R) it is 5%～25%.

Brief description

Fig. 1 related to this utility model embodiment 1, rotary compressor is internal and the longitudinal section of kind of refrigeration cycle；

Fig. 2 related to embodiment 1, the detailed composition of compression mechanical part and the sectional view of lubricating method；

Fig. 3 related to embodiment 1, the plane graph of compressor oil injecting method；

Fig. 4 related to embodiment 1, in compression chamber oil-containing cold media gas lubricating oil constitute and dynamical correlation concept map；

Fig. 5 related to embodiment 1, the sectional view of slide plate sliding surface fuel feeding scheme；

Fig. 6 is related to this utility model embodiment 2, the sectional view (1) of the oil storage means of raising axle mesopore；

Fig. 7 is related to embodiment 2, the sectional view (2) of the oil storage means of raising axle mesopore；

Fig. 8 is related to this utility model embodiment 3, design example that is being respectively configured two exhaust apparatus and deafener；

Fig. 9 is related to embodiment 3, design example that is configuring an exhaust apparatus and two deafeners；

Figure 10 is related to embodiment 4 of the present utility model, the design example of two deafeners of one exhaust apparatus of configuration；

Figure 11 related to embodiment 5 of the present utility model, the oil-containing cold media gas reverse exhaust apparatus of flowing and The design example of two deafeners；

Figure 12 is related to embodiment 6 of the present utility model, compression system, multi-cylinder rotary compressor Application Design example；

Figure 13 related to embodiment 6, from an axle mesopore to the design example of upper and lower shunting fuel feeding；

Figure 14 is related to embodiment 7 of the present utility model, design example that is using rolling bearing；

Figure 15 is related to embodiment 8 of the present utility model, compression change the flowing of oil-containing cold media gas by stub bore Machine sectional view；

Figure 16 related to embodiment 8 of the present utility model, by rotor deafener change oil-containing cold media gas flowing Compressor section coolant；

Figure 17 related to embodiment 9 of the present utility model, Horizontai rotary compressor sectional view and kind of refrigeration cycle.

Reference：

Single cylinder rotary compressor 1, housing 2, motor cavity of resorption 2a, motor epicoele 2b, motor 6, rotor 8, motor coil 7a, fixed Son 7, stator circumferential groove 7b, lubricating oil 9, oil storage tank 60,

Compression mechanical part 5, cylinder 40, compression chamber 40a, the 1st bearing 10, the 2nd bearing 20, piston 15, slide plate the 18, the 2nd disappear Sound device 24, oily hand-hole 23, vane slot 43, steam vent 45a, suction hole 44, slide plate oil supply tank 43a, slide plate oil supplying hole the 21, the 1st Deafener 14, internal circle groove 12, deafener intercommunicating pore 63 (36), deafener tap 14a,

Pore 30a, sleeve pipe in bent axle 25 (55), main shaft 30, countershaft 33, eccentric shaft 32, stub bore 25a, axle mesopore 26, axle 26a, separating of oil bolt 53, median septum 35,

Suction tube 75, fuel feed pump 50, exhaustor 3, sleeve pipe 52, thrust plate 65,

Condenser 70, expansion valve 71, vaporizer 72, fluid reservoir 73,

Exhaust apparatus 45, rotor deafener 8b, the 1st rolling bearing 66, the 2nd rolling bearing 68,

Shoe cream room 80, intermediate cavity 81, motor cavity 82.

Specific embodiment

Embodiment of the present utility model is described below in detail, the example of described embodiment is shown in the drawings.Below by The embodiment being described with reference to the drawings is exemplary it is intended to be used for explaining this utility model, and it is not intended that new to this practicality The restriction of type.

In description of the present utility model it is to be understood that term " " center ", " longitudinal ", " horizontal ", " length ", " width Degree ", " thickness ", " on ", D score, "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom " " interior ", " outward ", " suitable The orientation of instruction such as hour hands ", " counterclockwise ", " axial ", " radially ", " circumferential " or position relationship are based on orientation shown in the drawings Or position relationship, be for only for ease of description this utility model and simplify description, rather than instruction or hint indication device or Element must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to limit of the present utility model System.

Additionally, term " first ", " second " are only used for describing purpose, and it is not intended that indicating or hint relative importance Or the implicit quantity indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can express or Implicitly include at least one this feature.In description of the present utility model, " multiple " are meant that at least two, such as two Individual, three etc., unless otherwise expressly limited specifically.

In this utility model, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection ", " Gu Fixed " etc. term should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected or integral；Can be It is mechanically connected or electrically connect or can communicate each other；Can be to be joined directly together it is also possible to pass through the indirect phase of intermediary Even, can be the connection of two element internals or the interaction relationship of two elements, limit unless otherwise clear and definite.For this For the those of ordinary skill in field, concrete meaning in this utility model for the above-mentioned term can be understood as the case may be.

Describe the rotary compressor 1 according to this utility model embodiment below with reference to Fig. 1-Figure 17 in detail, wherein rotation pressure Contracting machine 1 can also be able to be multicylinder compressor for single cylinder compressor.

According to the rotary compressor 1 of this utility model embodiment, in the housing 2 of sealing, receive electric motor 6 and electric The compression mechanical part 5 that galvanic electricity machine 6 drives, housing 2 is provided with suction tube 75, and the bottom of housing 2 is provided with the oil storage of storage lubricating oil Groove.Motor 6 includes stator 7 and rotor 8.

Compression mechanical part 5 includes cylinder, piston, slide plate 18, bent axle and bearing, and cylinder is provided with compression chamber, and piston is eccentric to return It is located at compression intracavity with turning, slide plate 18 is reciprocally located on cylinder, crankshaft driving piston eccentric rotary, and bearing is joined with bent axle Close.Alternatively, bent axle and bearing are slidably matched, or are provided with rolling bearing between bent axle and bearing.Fig. 1-Figure 11, Figure 14- In example shown in Figure 17, cylinder be numbered 40, compression chamber be numbered 40a, piston be numbered being numbered of 15, bent axle 25, for the ease of description, in some descriptions following by Fig. 1-Figure 11, Figure 14-Figure 17 shown in paradigms number be defined.? In example shown in Figure 12 and Figure 13, cylinder is two and is the first cylinder 37 and the second cylinder 38, the first cylinder 37 is provided with the One compression chamber 37a, the second cylinder 38 is provided with the second compression chamber 38a, the 1st piston 37b and the 2nd piston 38b and bent axle 55 coordinate with Rotation is driven by bent axle 55.

The oil-containing cold media gas discharged from compression chamber, at least through the gas passage being configured between bent axle 25 and bearing, arrange Go out to inside housing 2.That is, gas passage is through bent axle 25 and bearing, the oil-containing cold media gas discharged from compression chamber exist Through bent axle 25 and bearing in flow process, such that it is able to be lubricated to compression mechanical part.

According to the rotary compressor 1 of this utility model embodiment, the oil-containing cold media gas discharged from compressor are flowing through gas Compression mechanical part can be played during body path with the effect of lubrication, reduce the oil drain quantity of compressor, thus not causing to store up The liquid level of the lubricating oil in oil groove declines to a great extent, and then need not increase compression on the basis of ensureing compression mechanical part fuel feeding abundance The oil sealing amount of machine, not only can avoid compressor that wear-out failure and so that compressor miniaturization occur.

In some embodiments of the present utility model, oil-containing cold media gas at least include returning to compression chamber from suction tube 75 The lubricating oil of 40a.Such that it is able to be further ensured that lubricant effect.

In some embodiments of the present utility model, perforate passes through the inclined of piston 15 in the oily hand-hole 23 of compression chamber 40a The reciprocating motion of heart revolution or slide plate 18 is opened and closed, and the lubricating oil in oil storage tank passes through oily hand-hole 23 and is injected into compression chamber In 40a.That is, compression chamber 40a is correspondingly arranged on oily hand-hole 23, oily hand-hole 23 can pass through fuel feed pump and oil storage tank Interior connection, can be opened by the reciprocating motion of the eccentric revolution of piston 15 or slide plate 18 or close oily hand-hole 23, When oily hand-hole 23 is opened, the lubricating oil under the internal medium of housing 2 and the differential pressure action of compression chamber 40a, in oil storage tank It is drained in compression chamber 40a by fuel feed pump.Such that it is able to be further ensured that lubricant effect.

In preferred embodiment of the present utility model, the area of passage of gas passage is more than whole discharges of compression chamber 40a The total open area in hole.Such that it is able to reduce the air resistance loss of the coolant of inflow gas path, it is to avoid under compressor efficiency Fall.

In some embodiments of the present utility model, a part for oil-containing cold media gas flows out between cylinder 40 and slide plate 18 Sliding surface.That is, a part of oil-containing cold media gas discharged from compression chamber 40a are flowed between cylinder 40 and slide plate 18 Sliding surface, such that it is able to lubrication is played to slide plate 18, be flowed into the lubricating oil of the sliding surface between cylinder 40 and slide plate 18 It flow back in compression chamber 40a under the differential pressure action between the internal medium and compression chamber 40a of housing 2.

In some embodiments of the present utility model, enter after the oil-containing cold media gas that compression chamber is discharged are via deafener To in gas passage.Such that it is able to reduce noise.

According to some embodiments of the present utility model, gas passage at least by the axle mesopore 26 being configured in bent axle 25, join The pore that the oil groove being placed between bent axle 25 and bearing is connected with axle mesopore 26 and oil groove is constituted.Specifically, enter into axle mesopore Oil-containing cold media gas in 26 can be entered in oil groove by pore and bearing and bent axle 25 are lubricated.

In some examples of the present utility model, axle mesopore 26 has the axle head being located at bent axle 25 and the periphery wall of bent axle 25 On perforate, oil-containing cold media gas enter in axle mesopore 26 from one of perforate and then discharge axle mesopore from another perforate 26.Further, at least one perforate is located in the deafener being located on bearing, such that it is able to reduce noise.

In other examples of the present utility model, axle mesopore 26 runs through bent axle 25 in the axial direction that is to say, that axle mesopore 26 bent axle 25 two axle head perforates.

In further embodiment of the present utility model, rotary compressor 1 is also included for separating containing in axle mesopore 26 The oil eliminator of the lubricating oil in oily cold media gas.That is, by being provided with oil eliminator, can be by containing in axle mesopore 26 Out, the lube oil retention separated, in axle mesopore 26, improves lubrication to lubricating oil separation in oily cold media gas further Effect.In some examples of the present utility model, as shown in fig. 6, the periphery wall of bent axle 25 is provided with pore 30a in axle, oil It is the sleeve pipe 26a being located on pore 30a in axle from device.In other examples of the present utility model, as shown in fig. 7, separating of oil Device is the separating of oil bolt on the internal perisporium be located at axle mesopore 26, separating of oil bolt by be superimposed the porous media of setting, netted or bits Shape portion material is constituted.

According to some embodiments of the present utility model, the rotor 8 of electric motor 6 is provided with the rotation parallel to bent axle 25 The side of axis extends upward through the rotor pore 8a of rotor 8.

According to the refrigerating circulatory device of this utility model embodiment, including the rotation according to this utility model above-described embodiment Compressor 1.

According to the refrigerating circulatory device of this utility model embodiment, by being provided with above-mentioned rotary compressor 1, can reduce The oil drain quantity of compressor, reduces the oil sealing amount of compressor, and can ensure that the reliability service of compressor.

In some embodiments of the present utility model, enclose coolant quantity (quality R) and the lubricants capacity of refrigerating circulatory device The ratio (L/R) of (quality L) is 5%～25%.

Describe the rotary compressor according to the several specific embodiment of this utility model below with reference to Fig. 1-Figure 17 in detail.

Embodiment 1：

Design brief of the present utility model, is illustrated based on Fig. 1.Single cylinder rotary compressor 1 possesses and is fixed on capsul The frequency change type electric motor 6 (hereinafter referred to as motor 6) of the internal perisporium of body 2 and compression mechanical part 5, seal casinghousing 2 is (hereinafter referred to as For housing 2) the oil storage tank 60 configuration lubricating oil 9 (hereinafter referred to as oil 9) that constitutes of bottom.Compression mechanical part 5 is configured motor 6 Rotor 8 drive.Motor cavity of resorption 2a and motor epicoele 2b is the high pressure chest being divided by motor 6 in housing 2.

Compression mechanical part 5 includes the cylinder 40 of the internal perisporium by electric arc spot welding to housing 2, the compression chamber of sealing cylinder 40 The 2nd bearing 20 that the 1st bearing 10 that 40a and the main shaft 30 with bent axle 25 are slidably matched is slidably matched with countershaft 33, by eccentric shaft 32 drive the slide plate 18 with the piston 15 of revolution eccentric in compression chamber 40a and the motion of piston 15 synchronous reciprocating.2nd deafener 2～3 of whole or these screws in 24 4～5 screws being fixed on cylinder 40 are fixed on the 2nd bearing 20. That is, it is identical with conventional rotary compressor.

It is flowed into the low pressure refrigerant gas of compression chamber 40a from suction tube 75, in compression chamber 40a, high pressure is changed into by compression Oil-containing cold media gas, oil-containing cold media gas, through being configured at the exhaust apparatus of the 2nd bearing 20, are vented to the 2nd deafener 24.Oil-containing Cold media gas from stub bore 25a of bent axle 25 flow to axle mesopore 26 and from axle pore 30a be vented to motor cavity of resorption 2a.

In this process, oil-containing cold media gas flow out to the inner circumferential of oilhole, oil groove and piston 15 on bent axle 25 for the processing Wall, to lubricate the sliding surface of bent axle 25 and the 2nd bearing 20 and the 1st bearing 10 and the sliding surface of lubrication piston 15.With oil storage tank 60 Oil in connection fuel feed pump 50, in compression chamber 40a, makeup oil 9 arrives compression chamber 40a for perforate.

It is discharged to the oil-containing cold media gas of motor cavity of resorption 2a, by the crest clearance (air gap) of motor coil 7a and rotor 8 Reach motor epicoele 2b.Therebetween, the oil contained by oil-containing cold media gas, by the heat exchange with high-temperature electric machine coil 7a, forms grain Shape, separates from cold media gas in motor epicoele 2b.Detached oil great majority, from four stator circumferential groove 7b towards Oil storage tank 60 falls.

On the one hand, the high pressure refrigerant gas reducing oil content in motor epicoele 2b flow to condenser 70 from exhaustor 3, become For condensing coolant, in expansion valve 71, the low pressure refrigerant of pressure drop passes through vaporizer 72, from the fluid reservoir separating liquid coolant 73 flow to suction nozzle 75, return compression chamber 40a.This oil mass ratio contained by circulating refrigerant amount, be referred to as circulate oil mass (%) or OCR(Oil Circulation Ratio).

The refrigerant circulation (quality) of kind of refrigeration cycle, is equivalent to the air-breathing coolant quantity of compression chamber 40a and discharges from exhaustor 3 Aerofluxuss coolant quantity.In addition, the OCR of kind of refrigeration cycle, need less than the 1% of refrigerant circulation, if it exceeds because oil after 2% Heat insulation can cause heat exchanger efficiency decline, lead to the hydraulic performance decline of kind of refrigeration cycle.

But, the OCR after compressor start or during defrosting etc. more than 10%, the oil mass of the oil storage tank 60 of housing 2 significantly under Fall.But, the total amount of the oil mass of oil storage tank 60 and kind of refrigeration cycle circulation oil mass is certain, is equivalent to the design oil sealing of housing 2 Amount.

Housing pressure is the compression chamber cold media gas of the rotary compressor of high pressure, comprises to return from suction tube 75 in kind of refrigeration cycle Return oil (being equivalent to OCR) and leak into compression chamber from piston internal perisporium and slide plate rear end (either party is high-pressure side) returned Pressure reduction oil.

The oil-containing cold media gas discharged from the compression chamber 40a of the present embodiment 1, have the characteristics that：Except containing above-mentioned Return outside oil and pressure reduction oil, also contain the injection oil from fuel feed pump 50.As it is explained in detail hereinafter, the oil-containing coolant gas of embodiment 1 Body, in steady running, the oil containing 6% (mass ratio).

Fig. 2 be compression mechanical part 5 constituent parts related with oil-containing cold media gas modified fluoromaterial lubrication detail drawing. It is connected to the fuel feed pump 50 of the oily hand-hole 23 in compression chamber 40a for the perforate, insertion the 2nd deafener 24 perforate is in oil storage tank 60 In oil 9.Sleeve pipe 52 prevents the gas leakage from the 2nd deafener 24.The lower end of bent axle 25, is slidably fixed on the 2nd bearing 20 lower end Thrust plate 65 on.But, lower surface of eccentric shaft 32 etc., even if also may be used as thrust face.

It is discharged to the pressure of the oil-containing cold media gas of the 2nd deafener 24 from exhaust apparatus 45, often than the intrinsic pressure summary of housing 2 High.Therefore, the oil-containing cold media gas discharged from the 2nd deafener 24, from perforate in stub bore 25a of thrust plate 65, towards top Flow into axle mesopore 26.In this process, by the revolution of bent axle 25, the big oil of quality, with cold media gas one, from axle mesopore 26 Middle perforate is discharged in the oilhole (27a etc.) of bent axle 25 periphery wall, separately flows into oil groove 33b, oil groove 32b and oil groove 27b.

Therefore, Castor Oil is slidably matched with bent axle 25 the 2nd bearing, piston 15 (internal perisporium) and the 1st bearing 10.And, Flow out to the oil of piston 15 internal perisporium, lubricate piston 15 slides up and down face, and a portion is changed into the pressure reduction to compression chamber 40a Oil, be recovered in oil-containing cold media gas.In addition, the inner diameter volume of piston 15, it is temporarily changed shoe cream room.

With these pistons 15 revolution interlock, in vane slot 43 (Fig. 3) reciprocating slide plate 18, by housing 2 and compression The pressure reduction lubrication of chamber 40a.That is, the floating oil of housing 2 or the oil 9 of oil storage tank 60, by the sliding surface of slide plate 18, flow into To after compression chamber 40a, it is recovered to the oil-containing cold media gas of discharge, be discharged to the 2nd deafener 24.That is, pressure reduction oil be from The sliding surface of piston 15 and slide plate 18 leaks into the oil of compression chamber 40a.

Here, the oil groove of axle mesopore 26 and oil groove 27a etc., it is also the exhaust channel of oily cold media gas.Therefore, these are arranged Gas path be generically and collectively referred to as gas passage after, the face than the exhaust channel steam vent 45a from compression chamber 40a for the gas passage area Long-pending bigger.Otherwise, the air resistance loss of inflow gas path, can lead to compressor efficiency to decline.Steam vent 45a is many When individual, the area of steam vent 45a is these the gross area.

Axle mesopore 26, is the gas passage expansion means of the rotary compressor more than the capacity being applied to air-conditioning etc..Therefore, It is applied to the design that compression ratio is big, capacity is little of refrigeration plant etc., or the small rotary compressor that bent axle footpath is little, cancel in axle Hole 26, expands the oil groove being arranged between the periphery wall of bent axle and bearing internal perisporium, also can be changed into gas passage.And, bearing Internal perisporium can also be configured oil groove.

Next, illustrating to the oil mass of oil-containing cold media gas.The standard operation condition or stable of rotary compressor In kind of refrigeration cycle, the pressure reduction oil total amount of piston 15 and slide plate 18, about 2%.Because separate testing this oil mass difficulty, Each owner pressure difference oil mass sees the 1% of circulating refrigerant amount as.

From kind of refrigeration cycle to the return of compression chamber 40a oil (OCR) as 1%, from the injection flow of fuel feed pump 50 as 3%, the total oil mass in oil-containing cold media gas is changed into 6% (mass ratio) of cold media gas amount.The injection flow of fuel feed pump 50, does not affect The oil mass (pasta) of oil storage tank 60.

The kind of refrigeration cycle amount of hypothesis air conditioner refrigerating circulation is 50Kg/ hour (h), the oil mass of oil-containing cold media gas is 6%, cold Oil mass contained by gas body then divides (m) or 0.93cc/ second (s) for 3Kg/ hour (h), 56cc/.But, the proportion of oil is 0.9.

On the one hand, the experimental data according to oil storage tank normal oil level (pasta) in conventional centrifugation oil feed pump, bent axle return Revolution is that pump oil amount about 50～60cc/ during 60rps divides (m), substantially corresponds to the fuel delivery of the present embodiment.But, Fig. 2 institute In the pasta of lower end of the 2nd deafener 24 showing, pump oil amount significantly declines.In addition, said pump oil mass, it is from the 1st axle The upper end holding (also referred to as base bearing) is discharged to the oil mass in motor lower portion space.

After compared with lubrication form, oil feed pump includes being located at the spiral lamina rotating in bent axle and because of bent axle centrifugal force, contains In oily cold media gas, the little spray oils of elaioleucite rise and the close spittle oil by axle revolution diffusion under the stirring action of spiral lamina. Accordingly, it is considered to the gap that is slidably matched, when oil uniformly deeply immerses less than 20 μm of gap, because of the oil-containing coolant gas of high-pressure oil feed Body is favourable.

The intrinsic pressure housing that is equivalent to of bent axle of centrifugation oil feed pump is intrinsic pressure, and oil-containing cold media gas pressure ratio housing is intrinsic pressure high about 0.01MPa.But, by about 10～20 minutes of steady running and run up after compressor start, pressure of inspiration(Pi) and Pressure at expulsion uprises respectively, so oil-containing cold media gas pressure increases.Therefore, the fuel feeding power of glade plane space, than centrifugation oil feed pump Favorably.

The present embodiment, compared with the oil-containing cold media gas low using temperature, centrifugation oil feed pump uses the oil storage of relatively-high temperature The oil of groove.Therefore, in the cooling effect of sliding surface that this temperature difference produces, favourable to oil-containing cold media gas.That is, being spray The effect of mist lubrication.

Fig. 3 is the oily hand-hole 23 by being connected with fuel feed pump 50, and the oil 9 of oil storage tank 60 is injected into compression chamber 40a's Method.The section X of Fig. 2 is the plane graph of Fig. 3, and the Y-Y section of Fig. 3 is the sectional view of Fig. 2.

The eccentric revolution of piston 15 is counterclockwise, in this design, the oily hand-hole 23 of the 2nd bearing 20 configuration, from Angle of revolution θ 1 (the about 70 °) perforate of piston 15, to (about 180 °) of θ 2 pass hole.Compression chamber from the piston angle of revolution of θ 1 to θ 2 The compression pressure of 40a is less than the oil pressure (high pressure) of oil storage tank 60, so oil 9 is discontinuously injected into the cold media gas in compression.

To the injection flow of compression chamber 40a, substantially by above-mentioned blowing angle (θ 2- θ 1), the aperture of oily hand-hole 23, oil storage The pressure differential of groove 60 and compression chamber 40a determines, with the speed of bent axle 25, a little change occurs.Therefore, the note of compression chamber 40a Oil mass, can arbitrarily adjust.But, after excessively increasing injection flow, because being dissolved into the coolant reflation of oiling, compression power can increase Plus.

The oily injection means of compression chamber 40a, pass through piston 15 circuit-breaker oil hand-hole 23 shown in more than Fig. 3, but permissible Method using the reciprocating method of slide plate 18 or using the oiling such as check valve and element of fluid to compression chamber.

Fig. 4 is the oil discrepancy path of compression chamber 40a and modified fluoromaterial, illustrates in modified fluoromaterial lubrication and applies oil-containing The basic conception of the present utility model of cold media gas.1. it is that kind of refrigeration cycle one is enclosed, returned from the suction hole 44 being connected with suction nozzle 75 Return to the return oil of compression chamber 40a, be equivalent to above-mentioned oil drain quantity (OCR).

2. it is poor by compression chamber 40a external and internal pressure, pass through piston lower planes glade plane space from the internal perisporium of piston 15, Leak into the pressure reduction oil of compression chamber 40a medium voltage side and low-pressure side.The internal perisporium of piston 15 is the gas passage of oil-containing cold media gas, So this pressure reduction oil provides from oil-containing cold media gas.But, from the pressure reduction oil of piston 15, it is discharged to the 2nd from compression chamber 40a Deafener 24, is recovered as oil-containing cold media gas.That is, being 2. repeatedly used recycle oil.

3. it is by the pressure reduction of compression chamber 40a and housing 2, by the pressure reduction oil in slide plate 18 planar slide gap, this pressure reduction Oil is also to enter the 2nd deafener 24 from compression chamber 40a to be recovered as oil-containing cold media gas.4. it is that above-mentioned fuel feed pump 50 produces Injection oil.5. it is to complete main shaft 30, the lubrication of the 2nd bearing 20, the 1st bearing 10 and piston 15, be discharged to motor cavity of resorption 2a's Discharge oil.

With regard to the oil mass (%) of the relative oil-containing cold media gas of circulating refrigerant amount, as it was previously stated, being 1. 1%, 2. and 3. divide It is not 1%, is 4. 3%, the total oil mass in the oil-containing cold media gas of the 2nd deafener 24 is 6%.But, 2. it is to return to oil-containing The recycle oil of cold media gas, so the oil drain quantity to motor cavity of resorption 2a 5. is changed into the 5% of oil-containing cold media gas amount, equal to 1.+ 3.+total amount 5% 4..

By detailed observation, it is 6% from the 2nd deafener 24 oil run, so by the internal and external peripheral wall of countershaft 33 Oil mass is 6%, is enclosed within outward in the internal perisporium of the piston 15 on eccentric shaft 32, oil mass 1% reduces, the passing through of main shaft 30 internal and external peripheral wall Oil mass is changed into 5%, and this oil mass returns in housing 2.In the displacement of above-mentioned oil-containing cold media gas, each sliding part is lubricated. So, the gas passage of the oil-containing cold media gas of the 2nd deafener 24 is the path being sealed, during do not leak into shell In body 2, can be effectively applied in the whole lubrication parts remove slide plate 18.

Here, adding explanation to return oil 1..It is applied to the rotary compressor on air-conditioning, after activation about 10 minutes or remove In the crank-up time of about 5～15 minutes of frost operating, the oil drain quantity of compressor becomes maximum.Generally, oil drain quantity is more than 10% Afterwards, occur oil storage tank oil mass drastically to decline simultaneously.One of its reason, has dissolved a large amount of cold in the oil of the compressor in being off Matchmaker, coolant seethes with excitement along with starting；Second reason is, because the low pressure refrigerant of surplus sucks, the refrigerant circulation of compressor Become too much, the oily hair raw stirring phenomenon of oil storage tank.

But, as described above, the oil drain quantity of compressor is changed into returning oil 1., it is changed into the oil mass of oil-containing cold media gas, in the past The oil mass of the oil storage tank of problem declines and reduces the avoidance that can get theoretical property.That is, this utility model is not dependent on housing 2 Oil mass, prevent trust sex chromosome mosaicism in above-mentioned bumpy running in possible trouble.In other words, this utility model can significantly subtract The oil sealing amount of few compressor.Reduce oil sealing amount, not only can make compressor miniaturization, also become the favourable of less coolant injection rate Means.

Next, in Fig. 5, slide plate oil supply tank 43a that the vane slot 43 (shown in Fig. 3) of additional cylinder 40 configures and with this groove Connection, perforate are in the slide plate oil supplying hole 21 of the 2nd deafener 24.6% total oil mass in oil-containing cold media gas in 2nd deafener 24 In about 1% oil, by the pressure reduction of the 2nd deafener 24 and compression chamber 40a, according to slide plate oil supplying hole 21, slide plate oil supply tank 43a After flowing out with the order of the sliding surface of slide plate 18, flow to compression chamber 40a.Thereafter, it is recovered to the 2nd deafener 24.That is, can As the recycle oil recycled as from the oil that piston 15 returns.

So, using the oil-containing cold media gas in the 2nd deafener 24 in the lubrication of slide plate 18 and piston 15, with Toward the same, even if slide plate rear end does not contact oil storage tank with bent axle lower end, it also is available for oil.Therefore, decline with the oil mass of oil storage tank 60 Unrelated, it is changed into reducing the effective means of oil sealing amount.

After slide plate oil supplying hole 21 is provided with vane slot fuel feed pump 56 (dotted line), oil storage tank 60 can DFF Direct Fuel Feed to vane slot 43a.For example, the side sliding surface of slide plate 18 adds oil groove, the reciprocating motion of cooperation slide plate 18, as long as in compression chamber 40a Setting stria, may replace fuel feed pump 50.

Embodiment 1, is mainly applied to the design example of the air-conditioning more than operating condition and coolant enclosed volume, is applied to circulate cold The little small rotary compressor of matchmaker's amount, the rotary compressor for the refrigerating equipment that freezes may be selected to omit fuel feed pump in designing 50.Rotary compressor, generally uses the oil mixing with coolant, the fewer use oil immiscible with coolant.In this utility model Oil-containing cold media gas can using above-mentioned any one oil.

This utility model, because the oil-containing cold media gas of pulsation are connected with the 2nd deafener 24, by compression mechanical part 5 The axle mesopore 26 of the heart, the effect reducing noise is big.By adding the deafener described in following embodiment 3 grades, this effect can be more Plus substantially.And, using the 2nd deafener 24 as dual structure (i.e. the 2nd deafener 24 can be double-decker), can change further It is apt to soundproof effect.

Embodiment 2：

Fig. 6 and Fig. 7, is that the difference in specific gravity with oil, so that passing through the oil-containing cold media gas of axle mesopore 26, is selected using cold media gas Extend to selecting property the time that oil is trapped in axle mesopore 26, or design axle mesopore 26 being considered as simple shoe cream room.In addition, axle After the hold-up saturation of the oil in mesopore 26, the oil mass being discharged to the oil-containing cold media gas of motor cavity of resorption 2a will not change.

In Fig. 6, the sleeve pipe 26a of thin slice is fixed on pore 30a in axle, spiral lamina 28 is pressed under axle mesopore 26 Side.It is flowed into the oil-containing cold media gas of axle mesopore 26 from stub bore 25a, revolution is accelerated by spiral lamina 28.Ratio cold media gas ratio Great oil, the inwall along axle mesopore 26 rises, so being increased by the oil mass of oilhole 33a, oilhole 32a and oilhole 27a.Separately Outward, the oil rising along inwall, because the sleeve pipe 26a of axle mesopore 26 protrusions can not be passed through, oil is trapped in axle mesopore 26.And The little cold media gas of proportion, by sleeve pipe 26a, are discharged in motor cavity of resorption 2a.

In Fig. 7, separating of oil bolt 53 is fixed on the internal perisporium of stub bore 25a.Separating of oil bolt 53 is by being superimposed porous Material, bolt that is netted or considering shape portion material composition to be worth doing.After oil-containing cold media gas pass through separating of oil bolt 53, revolution accelerates, and can play and Fig. 6 Identical effect.As the material of separating of oil bolt 53, the oil separation part material being built in oil eliminator can be used as reference.Such one Come, embodiment 2, increase the oil reserve of axle mesopore 26, improve greasy property.

Embodiment 3：

Fig. 8, on the 1st bearing 10 of configuration exhaust apparatus 45, adds the 1st deafener 14.It is drawn into compression from suction nozzle 75 The low pressure refrigerant gas of chamber 40a, is changed into high pressure oil-containing cold media gas, and impartial shunting is discharged to the 2nd deafener 24 and the 1st deafener In 14.

The oil-containing cold media gas being drained into the 1st deafener 14 pass through deafener intercommunicating pore 63 and are drained into the 2nd deafener 24 Oil-containing cold media gas interflow.Thereafter, pass through axle mesopore 26 from stub bore 25a, pore 30a discharges from axle.Therebetween, lubricate respectively Modified fluoromaterial.In the present embodiment, oil groove 27b and oil groove 33b is worked into the inner circumferential of the 1st bearing 10 and the 2nd bearing 20 respectively On wall.

In Fig. 9, even if the design of exhaust apparatus 45 is simply configured on the 1st bearing 10, by adding the on the 2nd bearing 20 2 deafeners 24, are discharged to the oil-containing cold media gas of the 1st deafener 14, are flowed into axle via the 2nd deafener 24 from stub bore 25a Middle pore 30a.In this design, axle mesopore 26 is changed into the 3rd deafener, reduces noise.

Embodiment 4：

In Figure 10, dead eye 10b perforate is in the internal circle groove 12 processed on the 1st bearing 10 internal perisporium and the 1st deafener 14. It is discharged to the oil-containing cold media gas of the 2nd deafener 24, by stub bore 25a and axle mesopore 26, pore 30a is via inner circumferential from axle Groove 12 and dead eye 10b, are flowed into the 1st deafener 14.Thereafter, from deafener tap 14a, it is discharged to motor cavity of resorption 2a.

Embodiment 4, exhaust gas pulses are the high pressure refrigerant gas in maximum noise source, by by the 2nd deafener 24, axle mesopore 26 The three sections of deafeners constituting with the 1st deafener 14, can reduce noise.Circumferential groove can also be designed on the periphery wall of main shaft 30 To replace internal circle groove 12.

Embodiment 5：

In Figure 11, the 1st bearing 10 configures exhaust apparatus 45, in axle, pore 30a perforate is in the 1st deafener 14.Discharge Oil-containing cold media gas in the 1st deafener 14, from axle, pore 30a flows to axle mesopore 26, is discharged to the 2nd from stub bore 25a Deafener 24.Thereafter, it is discharged to motor cavity of resorption 2a from the 2nd deafener intercommunicating pore 64.That is, compared with Example 1, in axle The flowing of the oil-containing cold media gas in hole 26 is reverse.

Using the oil mass of the oil-containing cold media gas of the 1st deafener 14 as 6%, the oil mass by main shaft 30 is 6%, by inclined Heart axle 32 and piston 15 internal perisporium, oil mass reduces 1%, and the lubricants capacity of countershaft 33 is changed into 5%, the 2nd deafener 24 containing oil cooling The oil mass of gas body is also 5%.

In Figure 10 of embodiment 4, the 1st bearing 10 configures exhaust apparatus 45, if chased after in the compressor of embodiment 4 Plus the 2nd deafener intercommunicating pore 64, the flowing of oil-containing cold media gas is the same with Figure 11.So, this utility model, slides zero The fuel feeding of part uses the oil-containing cold media gas of maximal pressure, and the design freedom of gas flow direction becomes big.

Embodiment 6：

Compression mechanical part shown in Figure 12, is the duplex-cylinder rotary compressor with the 1st cylinder 37 and the 2nd cylinder 38, is also It is applied to the application examples of Multi-cylinder rotation compressor.

It is respectively provided with two cylinders of the 1st compression chamber 37a and the 2nd compression chamber 38a, and be fixed in housing 2 internal perisporium Two side planes of dividing plate 35 connect.1st bearing 10 and the 2nd bearing 20 are respectively configured exhaust apparatus 45 and receive exhaust apparatus 45 1st deafener 14 and the 2nd deafener 24.Bent axle 55 is slidably matched with the 1st bearing 10 and the 2nd bearing 20, and two eccentric shafts are respectively Drive the 1st piston 37b and the 2nd piston 38b.

It is located in median septum 35 and perforate is connected with cross-drilled hole 35a and fuel feed pump 50 in the oily hand-hole 23 of two compression chambers. Therefore, impartial injection the 1st compression chamber 37a and the 2nd compression chamber 38a of oil 9 in oil storage tank 60.It is discharged to containing of the 1st deafener 14 Oily cold media gas, flow to deafener intercommunicating pore 36, with the oil-containing cold media gas interflow in the 2nd deafener 24.Thereafter, from stub bore Via axle mesopore 26, from axle, pore 30a discharges 25a.This design example, by fuel feed pump 50, oil is injected into the 1st compression chamber 37a In the 2nd compression chamber 38a.

As shown in figure 13, it is arranged at the middle interflow hole 36a of deafener intercommunicating pore 36 and positioned at median septum 35 central authorities Intermediate cavity 35b connects with pore 31a in the axle of bent axle 55 perforate.1st deafener 14 and the oil-containing coolant gas of the 2nd deafener 24 Body, from deafener intercommunicating pore 36 via interflow hole 36a, is flowed into pore 31a in axle.Thereafter, oil-containing cold media gas are diverted to axle Middle pore 30a and stub bore 25a are discharged.

Shunted about 26 by the axle mesopore of bent axle 55, in addition to lubricating whole sliding surfaces, the coolant of axle mesopore 26 Gas flow halves it is possible to obtain the effect reducing drag losses.The slip related to oil-containing cold media gas in embodiment 6 The lubrication of parts, also can be easily applied on Multi-cylinder rotation compressor.

Embodiment 7：

The slip form of the single cylinder rotary compressor shown in Figure 14 is on the sliding surface of bent axle 25 and two bearings using rolling Dynamic bearing.

The internal perisporium of the 1st bearing 10 and the 2nd bearing 20 fixes the 1st rolling bearing 66 and the 2nd rolling bearing 68 respectively, and the 1st Bent axle 25 is inserted respectively in rolling bearing 66 and the 2nd rolling bearing 68.Therefore, bent axle 25 and two rolling bearings are slidably matched.

High pressure oil-containing cold media gas in 2nd deafener 24, by internal perisporium and the 2nd rolling bearing 68 of the 2nd bearing 20 Between bearing clearance 68a (internal-and external diameter being equivalent to rolling bearing is poor) lubricate the 2nd rolling bearing 68 after, by being configured at eccentric shaft The oilhole 32b lubrication piston 15 of 32 periphery walls, high pressure oil-containing cold media gas lubrication the 1st rolling bearing 66, is finally discharged to afterwards Motor cavity of resorption 2a.

The gap 68a periphery wall of bent axle 25 and above-mentioned two bearing between is used as oil-containing coolant gas in embodiment 7 The gas passage of body.Even if that is, the axle mesopore 26 using in other embodiments does not have, inside and outside rolling bearing Footpath is poor, also can obtain sufficient gas passage.And, the gap total amount between multiple rollers of composition rolling bearing or pearl, make For gas passage, it may have sufficiently width.

In gas passage, because oil-containing cold media gas is entirely the gap passing through roller or pearl shape, therefore roll Dynamic bearing can ensure and obtain optimal lubrication.Here it is the effect that the high-pressure fog lubrication that oil-containing cold media gas feature is located produces Really, even if the related lubrication of oil-containing cold media gas also can preferentially adopt on the rotary compressor using rolling bearing.And, such as Shown in Figure 14, by adopting rolling bearing, it may have can simply machining crankshafts 25 and above-mentioned two bearing advantage.

In addition, being configured at multiple eccentric shaft through hole 32c of oil-containing cold media gas eccentric part, because the face of oilhole 32b Long-pending less, so being also the means of enlargement gas path.And, if necessary if enlargement gas path, the periphery of bent axle 25 Air drain also can be added on the internal perisporium of wall or above-mentioned two bearing.

Embodiment 8：

As shown in figure 15, the two ends of the axle mesopore 26 insertion bent axle 25 of bent axle 25, axle mesopore 26 has stub bore 25a and axle Bring out a mouthful 25b.It is flowed into the oil-containing cold media gas of stub bore 25a in the 2nd deafener 24 for the perforate, lubrication bent axle 25 and piston 15, then it is discharged to motor epicoele 2b from axle head outlet 25b.

Thereafter, the oil-containing cold media gas mixing with the gases at high pressure of motor epicoele 2b, by motor coil 7a and multiple turns Edema of the legs during pregnancy hole 8a cooling motor coil 7a and rotor 8.By heat exchange, in heated oil-containing cold media gas, the oil of residual forms grain Sonization, falls towards oil storage tank 60 from motor cavity of resorption 2a.

Then, in the detached oil of motor epicoele 2b, by four stator circumferential groove 7b, fall oil storage tank 60.Motor cavity of resorption Reduce the gases at high pressure of oil mass in 2a, discharge from exhaustor 3.Compared with the present embodiment, the design of conventional rotary compressor is, from The gases at high pressure that compression chamber is discharged, flow to motor epicoele 2b from motor cavity of resorption 2a.The pressure of motor cavity of resorption 2a high it is ensured that under oil The path that falls is more difficult, so, increase from the oil drain quantity of the exhaustor 3 (Figure 15) being connected to motor epicoele 2b.

As shown in figure 16, after the upper end of rotor 8 adds rotor deafener 8b, from axle head outlet 25b discharge containing oil cooling The flow path of gas body forms U-shaped, by rotor pore 8a, is discharged to motor cavity of resorption 2a.But, exhaustor 3 perforate is in electricity Machine epicoele 2b, as Fig. 1 of embodiment 1, the gas of motor cavity of resorption 2a passes through motor coil 7a, from perforate in motor epicoele 2b Exhaustor 3 be vented to kind of refrigeration cycle.

This embodiment, oil-containing cold media gas after high-temperature rotor pore 8a is discharged to motor cavity of resorption 2a, by motor lines Circle 7a, is discharged to motor epicoele 2b, is preferable as reducing oil drain quantity design.That is, in embodiment 8, axle mesopore The 26 and rotor deafener 8b lubrication passages being not only oil-containing cold media gas, and oil drain quantity can be reduced and reduce noise.

Embodiment 9：

Compressor as shown in figure 17 be bent axle 25 horizontal positioned Horizontai rotary compressor in apply oil-containing cold media gas Cases of design.The periphery wall of the 1st bearing 10 of compression mechanical part 5 configuration is fixed on the internal perisporium of housing 2.Therefore, pass through Compression mechanical part 5 and motor 6, housing 2 is divided into shoe cream room 80, intermediate cavity 81 and 82 3 chambeies of motor cavity.

It is discharged to the oil-containing cold media gas of the 2nd deafener 24 from compression chamber 40a, from stub bore 25a being configured at bent axle 25 Flow to axle mesopore 26, lubricate each modified fluoromaterial.Thereafter, export, from axle head, the oil-containing cold media gas that 25b is discharged to motor cavity 82, Reverse flow, by motor coil 7a, rotor pore 8a and stator circumferential groove 7b, flows out to intermediate cavity 81.The oil separated Drop to intermediate cavity 81.

On the one hand, in the detached a small amount of oil of motor cavity 82, by lowest part stator circumferential groove 7b, flow to intermediate cavity 81, With the oil interflow fallen in intermediate cavity 81.The oil at interflow, is flowed in the oil storage tank 60 of shoe cream room 80 by oily path 13b.Oil storage The oil of groove 60 is injected into compression chamber 40a by fuel feed pump 50.

The present embodiment, axle mesopore 26 passes through perforate in motor cavity 82, and the pressure in each chamber is changed into motor cavity 82 ＞ intermediate cavity 81 ＞ shoe cream room 80, motor cavity 82 is changed into maximal pressure, shoe cream room 80 is changed into minimal pressure.Therefore, motor cavity 82 and intermediate cavity 81 are not stored up Oil, almost all of oil flows out to storage in the low shoe cream room of pressure 80.Therefore, in turning that motor cavity 82 and intermediate cavity 81 turn round Son 8, will not occur to contact to stir the phenomenon of oil with oil, compression mechanical part 5 can use the oil of shoe cream room 80.That is, reason The oily control design case of the Horizontai rotary compressor thought becomes possible to.

Rotary compressor of the present utility model can be carried on air-conditioning, refrigeration plant, water heater etc..And rotary pressure Contracting machine can be on the piston rock type rotary compressor and Horizontai rotary compressor integrated with slide plate.Row of the present utility model Device of air, design is simple, and manufacturing is superior.

In this utility model, unless otherwise clearly defined and limited, fisrt feature second feature " on " or D score Can be the first and second feature directly contacts, or the first and second features pass through intermediary mediate contact.And, first is special Levy second feature " on ", " top " and " above " but fisrt feature directly over second feature or oblique upper, or only Represent that fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " lower section " and " below " permissible Be fisrt feature immediately below second feature or obliquely downward, or be merely representative of fisrt feature level height and be less than second feature.

In the description of this specification, reference term " embodiment ", " some embodiments ", " example ", " specifically show The description of example " or " some examples " etc. means specific features, structure, material or the spy describing with reference to this embodiment or example Point is contained at least one embodiment of the present utility model or example.In this manual, the schematic table to above-mentioned term State and be necessarily directed to identical embodiment or example.And, the specific features of description, structure, material or feature are permissible Any one or more embodiments or example combine in an appropriate manner.Additionally, in the case of not conflicting, this area Technical staff the feature of the different embodiments described in this specification or example and different embodiment or example can be entered Row combines and combines.

Although of the present utility model embodiment has been shown and described above it is to be understood that above-described embodiment is Exemplary it is impossible to be interpreted as that those of ordinary skill in the art is in scope of the present utility model to restriction of the present utility model Interior above-described embodiment can be changed, change, replacing and modification.

Claims (15)

1. a kind of rotary compressor is it is characterised in that having received electric motor in the housing of sealing and having been driven by described electric motor Dynamic compression mechanical part, described housing is provided with suction tube, and the bottom of described housing is provided with the oil storage tank of storage lubricating oil,

Described compression mechanical part includes cylinder, piston, slide plate, bent axle and bearing, and described cylinder is provided with compression chamber, and described piston is inclined The heart is pivotally located at described compression intracavity, and described slide plate is reciprocally located on described cylinder, and described bent axle drives described work Plug eccentric rotary, described bearing and described bent axle cooperation；

The oil-containing cold media gas discharged from described compression chamber, lead at least through the gas being configured between described bent axle and described bearing Road, is discharged to described enclosure interior.

2. rotary compressor according to claim 1 is it is characterised in that described oil-containing cold media gas are at least included from described Suction tube returns to the lubricating oil of described compression chamber.

3. rotary compressor according to claim 1 is it is characterised in that perforate is passed through in the oily hand-hole of described compression chamber The reciprocating motion of the eccentric revolution of described piston or described slide plate is opened and closed, and the lubricating oil in described oil storage tank passes through described Oily hand-hole is injected into described compression intracavity.

4. rotary compressor according to claim 1 is it is characterised in that the area of passage of described gas passage is more than described The total open area of whole taps of compression chamber.

5. rotary compressor according to claim 1 is it is characterised in that a part for described oil-containing cold media gas flows out to Sliding surface between described cylinder and described slide plate.

6. rotary compressor according to claim 1 it is characterised in that from described compression chamber discharge described oil-containing coolant Gas is via being drained into after deafener in described gas passage.

7. rotary compressor according to claim 1 is it is characterised in that described gas passage is at least by being configured at described song Axle mesopore in axle, the oil groove being configured between described bent axle and described bearing are connected with described axle mesopore and described oil groove Pore is constituted.

8. rotary compressor according to claim 1 is it is characterised in that described bent axle and described bearing are slidably matched, or It is provided with rolling bearing between bent axle described in person and described bearing.

9. rotary compressor according to claim 7 is it is characterised in that described axle mesopore has the axle being located at described bent axle Perforate on the periphery wall of end and described bent axle.

10. rotary compressor according to claim 9 is it is characterised in that at least one described perforate is described positioned at being located at In deafener on bearing.

11. rotary compressors according to claim 7 are it is characterised in that described axle mesopore runs through described song in the axial direction Axle.

12. rotary compressors according to claim 7 are it is characterised in that also include for separating in the hole in described axle The oil eliminator of the lubricating oil in described oil-containing cold media gas.

13. rotary compressors according to claim 1 are it is characterised in that the rotor of described electric motor is provided with flat Row extends upward through the rotor pore of described rotor in the side of the pivot center of described bent axle.

A kind of 14. refrigerating circulatory devices are it is characterised in that include the rotary compression according to any one of claim 1-13 Machine.

15. refrigerating circulatory devices according to claim 14 are it is characterised in that enclose the coolant of described refrigerating circulatory device The ratio (L/R) of amount (quality R) and lubricants capacity (quality L) is 5%～25%.