CN206592295U - Rotary compressor and the refrigerating circulatory device with it - Google Patents

Abstract

The utility model discloses a kind of rotary compressor and the refrigerating circulatory device with it.Motor section, compression mechanical part and lubricating oil are stored in the housing of rotary compressor, compression mechanical part includes：Slidably support the 1st bearing and the 2nd bearing of bent axle；The slide plate back side chamber of the rearward end positioned at vane slot is provided with cylinder, cylinder, the 1st bearing or the high pressure muffler of the 2nd bearing side is located at；The high pressure refrigerant discharged from compression chamber discharge the blast pipe being connected with the condenser of refrigerating circulatory device from high pressure muffler via slide plate back side chamber.According to the rotary compressor of the utility model embodiment, it is possible to reduce the abrasion of slide plate, it can prevent from revealing substantial amounts of gases at high pressure from slide plate sliding surface, it is to avoid loss of refrigeration capacity, the oil spitting amount of compressor can also be reduced.

Description

Rotary compressor and the refrigerating circulatory device with it

Technical field

The utility model is related to refrigerating field, more particularly, to a kind of rotary compressor and the kind of refrigeration cycle with it dress Put.

Background technology

For the usage amount tackled global warming, reduce fluorine system refrigerant, received much concern using means such as nature refrigerants, can Combustion property refrigerant R290 and super-pressure refrigerant CO2 is used for the research of rotary compressor and practical process is promoted.Hydrocarbon Gas has very strong combustibility, on the one hand, because the operating pressure of carbonic acid gas is the super-pressure more than 10MPa, have Necessity will be set to low pressure in compression chamber shell.But, because following reason fails input practicality.

Reason 1：Under Standard operating condition, if from compressor exhaust pipe discharge oil mass one more than 1.5% or 2.0%, the effectiveness of heat exchanger of freeze cycle will deteriorate, and cold can be reduced.But low pressure Casing Compressor be difficult to by from Compressor discharge is controlled below 1% to the oil spitting amount (OCR) of freeze cycle.

Reason 2：In the vane slot of cylinder there is problem in the lubrication of reciprocating slide plate.The fuel feeding of slide plate sliding surface is not If foot, more than slide plate weares and teares, and the gas leakage for being leaked to compression chamber from high pressure noise elimination cavity also results in compression efficiency reduction.

Utility model content

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

Therefore, the utility model proposes a kind of rotary compressor, it is possible to reduce the abrasion of slide plate, it can prevent from sliding from slide plate Substantial amounts of gases at high pressure are revealed in dynamic face, reduce the oil spitting amount of compressor.

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

According to the rotary compressor of the utility model embodiment, in the shell equal with the low-pressure lateral pressure of refrigerating circulatory device Stored motor section, compression mechanical part and lubricating oil in body, the housing is provided with air intake duct, the motor section include stator and Rotor, the compression mechanical part includes：Slidably support the 1st bearing and the 2nd bearing of bent axle；Positioned at the 1st bearing and described It is provided with the cylinder for possessing compression chamber between 2nd bearing, the compression chamber on the bent shaft-driven piston, the cylinder Provided with the slide plate moved back and forth in vane slot, the slide plate back of the body of the rearward end positioned at the vane slot is provided with the cylinder Face chamber, is located at the 1st bearing or the high pressure muffler of the 2nd bearing side；The high pressure refrigerant discharged from the compression chamber The exhaust being connected with the condenser of the refrigerating circulatory device is discharged to via slide plate back side chamber from the high pressure muffler Pipe.

According to the rotary compressor of the utility model embodiment, using the lubricating oil being drained into high pressure muffler to slide plate It is lubricated, so as to reduce the abrasion of slide plate, can prevents from revealing substantial amounts of gases at high pressure from slide plate sliding surface, it is to avoid cold Amount loss, while the oil spitting amount of compressor can also be reduced.

In some embodiments of the present utility model, the opposing sidewalls of the vane slot are carried on the back provided with perforate in the slide plate The oil supplying hole of face chamber.

In some embodiments of the present utility model, perforate in the high pressure muffler by-pass prot via the oil supplying hole Communicated with slide plate back side chamber.

In some embodiments of the present utility model, rotary compressor also includes the remote pressure for being fixed on the rotor The finger plate of the side of contracting mechanism part, the air intake duct is towards the finger plate perforate.

In some embodiments of the present utility model, one end of the 1st bearing or the 2nd bearing is provided with the bent axle Oil supply loop oil discharge hole.

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

According to the refrigerating circulatory device of the utility model embodiment, the above-mentioned rotary compressor by setting, it is possible to reduce The abrasion of slide plate, can prevent from revealing substantial amounts of gases at high pressure from slide plate sliding surface, it is to avoid loss of refrigeration capacity, while can also reduce The oil spitting amount of compressor.

Brief description of the drawings

Fig. 1 is related to the present embodiment 1, rotary compressor sectional interior view and refrigeration cyclic graph；

Fig. 2 is related to the present embodiment 1, the longitudinal section of compression mechanical part detailed configuration；

The plan that Fig. 3 is related to the present embodiment 1, high pressure muffler inside is detailed；

Fig. 4 is related to the present embodiment 1, compression mechanical part oily flowing plan；

Fig. 5 is related to the present embodiment 2, the longitudinal section of compression mechanical part detailed configuration；

The plan that Fig. 6 is related to the present embodiment 2, cylinder and related components are assembled；

Fig. 7 is related to the present embodiment 3, the longitudinal section of compression mechanical part detailed configuration.

Reference：

Rotary compressor 1, housing 2, shoe cream room 7, lubricating oil 8,

Compression mechanical part 5, bent axle 50, eccentric part 52, the 1st bearing 20, the 1st bearing block 25, helical oil groove 25a, the 1st flange 21st, the 1st flange hole 21a, the 2nd bearing 30, the 2nd flange 31, the 2nd flange hole 31a, steam vent 33, cylinder 10, compression chamber 10a, work Plug 44, slide plate 40, tip sliding surface 40c, low pressure muffler 27, high pressure muffler 36, suction hole 22, low pressure oil supply groove 35, cunning It is film trap 12, the 1st bearing cross-drilled hole 23, slide plate back side chamber 15, oil supplying hole 18, sealing screw 13, oil discharge hole 26, by-pass prot 19, low Pressure pipe 28,

Motor section 6, stator 6a, rotor 6b, motor coil 6c,

Finger plate 9,

Condenser 70, expansion valve 71, evaporator 72, air intake duct 4, blast pipe 3.

Embodiment

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

In description of the present utility model, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width Degree ", " thickness ", " on ", " under ", "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom " " interior ", " outer ", " suitable The orientation or position relationship of the instruction such as hour hands ", " counterclockwise ", " axial direction ", " radial direction ", " circumference " are based on orientation shown in the drawings Or position relationship, be for only for ease of description the utility model and simplify and describe, rather than indicate or imply signified 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.

In addition, term " first ", " second " are only used for describing purpose, and it is not intended that indicating or implying relative importance Or the implicit quantity for 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 It is individual, three etc., unless otherwise specifically defined.

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

The rotary compressor 1 according to the utility model embodiment is described in detail below with reference to Fig. 1-Fig. 7.

According to the rotary compressor 1 of the utility model embodiment, equal with the low-pressure lateral pressure of refrigerating circulatory device Motor section 6, compression mechanical part 5 and lubricating oil 8 are stored in housing 2, housing 2 is provided with air intake duct 4, that is to say, that according to this The rotary compressor 1 of utility model embodiment is casing of low back pressure compressor, and the low pressure refrigerant that air intake duct 4 is sucked enters housing Space in 2, air intake duct 4 is connected with the evaporator 72 of refrigerating circulatory device.

Motor section 6 includes stator 6a and rotor 6b, and rotor 6b is rotatably arranged in stator 6a.Compression mechanical part 5 includes： Bent axle 50, the 1st bearing 20, the 2nd bearing 30, cylinder 10 and high pressure muffler 36, wherein bent axle 50 coordinate with by turning with rotor 6b Sub- 6b drivings are rotated.1st bearing 20 and the 2nd bearing 30 sliding support bent axle 50.The cylinder 10 for possessing compression chamber 10a is located at the 1st Between the bearing 30 of bearing 20 and the 2nd, provided with the piston 44 driven by bent axle 50 in compression chamber 10a, cylinder 10 is provided with slide plate The slide plate back side chamber 15 of the rearward end positioned at vane slot 12 is provided with the slide plate 40 moved back and forth in groove 12, cylinder 10.It is high Pressure muffler 36 is located at the 1st bearing 20 or the side of the 2nd bearing 30.

It is discharged to and is followed with refrigeration via slide plate back side chamber 15 from high pressure muffler 36 from the compression chamber 10a high pressure refrigerants discharged The connected blast pipe 3 of the condenser 70 of loop device.

Specifically, a part of refrigerant with lubricating oil 8 in high pressure muffler 36 passes through slide plate back side chamber 15, slide plate The gap of 40 sliding surface is flowed into compression chamber 10a, so that not only lubricating oil 8 can lubricate reciprocating slide plate 40, live The internal perisporium of plug 44 and cylinder 10, while the leakage for the gases at high pressure being also prevented from compression.

According to the rotary compressor 1 of the utility model embodiment, 8 pairs of the lubricating oil being drained into high pressure muffler 36 is utilized Slide plate 40 is lubricated, so as to reduce the abrasion of slide plate 40, can prevent from revealing substantial amounts of high pressure from the sliding surface of slide plate 40 Gas, it is to avoid loss of refrigeration capacity, while the oil spitting amount of compressor can also be reduced.

In some embodiments of the present utility model, the opposing sidewalls of vane slot 12 are provided with perforate in slide plate back side chamber 15 Oil supplying hole 18.So as to increase the fuel delivery to the sliding surface of slide plate 40, the wear extent of slide plate 40 is further reduced.Specifically The coil spring being only against on slide plate 40 is may be inserted into ground, oil supplying hole 18.

In some further embodiments of the present utility model, perforate in high pressure muffler 36 by-pass prot 19 via fuel feeding Hole 18 is communicated with slide plate back side chamber 15, so as to improve the lubricant effect to slide plate 40.Preferably, by-pass prot 19 is in slide plate 40 The impartial perforate of both sides sliding surface.

According to some further embodiments of the present utility model, rotary compressor 1 also includes being fixed on the remote of rotor 6b The finger plate 9 of the side of compression mechanical part 5, air intake duct 4 is towards the perforate of finger plate 9.So as to reduce the oil spitting amount of compressor.

In some embodiments of the present utility model, one end of the 1st bearing 20 or the 2nd bearing 30 is provided with the fuel feeding of bent axle 50 The oil discharge hole 26 in loop.Specifically, the lubricating oil 8 in shoe cream room 7 can be entered in oil supply loop to the outer of bent axle 50 Perisporium is lubricated, and the lubricating oil 8 in oil supply loop can be directly expelled back into shoe cream room 7 from oil discharge hole 26, so as to Prevent the lubricating oil 8 in oil supply loop from entering in compression chamber 10a, reduce the oil spitting amount of rotary compressor 1.

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

According to the refrigerating circulatory device of the utility model embodiment, the rotary compressor 1 above-mentioned by setting, it is possible to reduce The abrasion of slide plate, can prevent from revealing substantial amounts of gases at high pressure from slide plate sliding surface, it is to avoid loss of refrigeration capacity, while can also reduce The oil spitting amount of compressor.

The rotary compressor 1 according to three embodiments of the utility model is described in detail below with reference to Fig. 1-Fig. 7.

Embodiment 1：

Fig. 1 is the refrigerating circulatory device provided with the shell low-pressure rotary compressor 1 according to the utility model embodiment Schematic diagram.Rotary compressor 1 is by the compression mechanical part 5 being received into housing 2, electrodynamic machine portion 6, the profit for injecting shoe cream room 7 Lubricating oil 8 (hereinafter referred to as oily) is constituted.Motor section 6 includes being fixed on the stator 6a of the internal perisporium of housing 2 and by its internal perisporium It is fixed on the rotor 6b of the periphery wall of bent axle 50.The exit end face of air intake duct 4 of the central upper end of cylindrical shell 2 is connected to admittedly Due to the center drilling of the finger plate 9 of rotor 6b upper ends.

Compression mechanical part 5 include the 1st bearing 20, the 2nd bearing 30, the bent axle 50 slidably supported by bearing, cylinder 10, By the piston 44 of the eccentric revolution driving of the eccentric part 52 of bent axle 50, as piston 44 is turned round and is carried out in the compression chamber 10a of cylinder Reciprocating slide plate 40.Cylinder 10 is located between the 1st bearing 20 and the 2nd bearing 30 and is fixed on the 1st bearing 20 using screw On the 2nd bearing 30.Configuration high pressure muffler 36 on the bearing 30 of low pressure muffler the 27, the 2nd is configured on 1st bearing 20.Constitute the 1st The periphery wall of the 1st discoideus flange 21 of bearing 20 is spoted weld on the internal perisporium of housing 2.

Containing 1% circulation oil mass, about 3~10 DEG C of low pressure refrigerant housing 2 is flowed out to from evaporator 72 via air intake duct 4 Inside, the finger plate 9 of low pressure refrigerant and revolution at a high speed bumps against.Gyratory directions diffusion of the low pressure refrigerant along finger plate 9, from height Start to penetrate into inside it on the inside of warm motor coil 6c.Now, aerified while clammy matchmaker's cooling motor coil 6c, from The oil that gas coolant is isolated is fallen by stator 6a circumferential play towards shoe cream room 7.

On the one hand, the low-pressure gas for flowing to rotor 6b bottoms that oil content is reduced contains 0.3% spray oils.Contain The low-pressure gas of 0.3% spray oils is flowed into compression chamber 10a via low pressure muffler 27 from suction hole 22.On the other hand, will be from Low pressure oil supply groove 35 (Fig. 3, Fig. 4) described later is designed as 0.7% to compression chamber 10a air-breathing oil mass, from the low voltage section of housing 2 to Compression chamber 10a total air-breathing oil mass is 1.0% (OCR) of kind of refrigeration cycle or the circulating refrigerant amount of housing 2.Here, circulating refrigerant The contained oil mass of amount is than referred to as OCR (Oil Circulation Ratio).

The gases at high pressure compressed in compression chamber 10a by piston 44 and slide plate 40, from the steam vent for being configured at the 2nd flange 31 33 are discharged to sealed high pressure muffler 36.The temperature for the gases at high pressure discharged from steam vent 33 is very a height of more than 70 DEG C, and oil becomes For uniform spray oils, as described below, discharge gas contains 2.5% spray oils (OCR).

From housing 2 to compression chamber 10a total air-breathing oil mass be 1.0%, from high pressure silencing cavity 36 lubrication vane slot 12 (Fig. 2, Fig. 3), oil extraction to compression chamber 10a oil mass is 1.5%, and the oil is compressed in compression chamber 10a again, is returned from steam vent 33 To high pressure muffler 36.That is, the oil of lubrication vane slot 12 is circulated.Including above-mentioned air-breathing oil mass therefore, 1.0%, high pressure muffler 36 typically contains 2.5% spray oils.

On the one hand, in the continuous lubrication of slide plate 40, the oil drain quantity discharged from high pressure muffler 36 via blast pipe 3 is changed into 1% (2.5-1.5%).That is, being 1% from housing 2 to compression chamber 10a total air-breathing quantitative change.Discharged from blast pipe 3 Containing 1% oily high pressure refrigerant, according to being flowed into after condenser 70, expansion valve 71, the sequential flowing of evaporator 72 from air intake duct 4 To housing 2.

Gases at high pressure containing spray oils are from being configured at the 2nd flange hole 31a of the 2nd flange 31, to lower and upper insertion cylinder 10 slide plate back side chamber 15 flows to the 1st flange hole 21a.Thereafter, discharged via the 1st bearing cross-drilled hole 23 from blast pipe 3.Here, handle 1% oil for flowing into kind of refrigeration cycle is referred to as circulation oil drain quantity.

Fig. 2 is the detailed figure of compression mechanical part 5.The plane of 2nd flange 31 is provided with muffler plate 37, and muffler plate 37 is Metal plate punching plate or casting molding part, muffler plate 37 are sealingly fastened in cylinder 10 together with the 2nd bearing 30 by 6 screws 38. As described above, the spray form discharge gas discharged from the steam vent 33 for being configured at the 2nd flange 31 is discharged to high pressure muffler 36, so Heel row goes out gas from bottom to up by running through the slide plate back side chamber 15 of cylinder 10.

Next, carrying out effect explanation to the oil supplying hole 18 in the center of slide plate back side chamber 15, horizontal direction processing.Slide plate The pressure of back side chamber 15 be high pressure (Pd), and compression chamber 10a pressure be low pressure (Ps)~high pressure (P d), according to the pressure differential, Gas is discharged by the spray form of slide plate back side chamber 15 to flow into towards oil supplying hole 18.

Spray form into oil supplying hole 18 discharges gas diffusion to the both sides of the reciprocating slide plate 40 in vane slot 12 Sliding surface, plays the important function of lubrication.That is, spraying elaioleucite connects in about 5~6 μm of narrow and small slide plate glade plane space Conjunction is changed into oil film, be located at the side sliding surface and tip sliding surface 40c of the slide plate 40 of most harsh boundary lubrication (with piston 44 periphery sliding surface) lubrication.

After the undue side glade plane space for expanding slide plate 40, fuel delivery increase, gases at high pressure also leak into compression chamber 10a, Refrigerating capacity is caused to decline, input increases.The side glade plane space of slide plate 40, according to experiment, can be readily available optimum value.But It is that the compressor start in stopping for a long time is stable until slide plate fuel delivery, at least needs 15~20 points.

In embodiment 1, coil spring 45 is inserted in oil supplying hole 18, coil spring 45 presses the rearward end of slide plate 40.Sealing Screw 13 is the processing sealing bolt of oil supplying hole 18.Under conditions of declining, also do not influence even if fuel delivery, oil supplying hole can be omitted 18。

As depicted in figs. 1 and 2, the helical oil groove 25a upper end not perforate of the internal perisporium of the 1st bearing block 25 is machined in The outside of 1 bearing block 25, oil will not flow to low pressure muffler 27.Moreover, completing the oil of the lubrication of bent axle 50 and two bearings etc. Shoe cream room 7 is directly recovered to by oil discharge hole 26.As a result, to the fuel delivery of low pressure muffler 27, correct control can be obtained The effect of system.

Fig. 3 is the X-X sectional views based on Fig. 2, the inside of display high pressure muffler 36.High pressure muffler 36, and conventional one Sample, oily separation function need not be configured, as general muffler, internal volume miniaturization, soundproof effect are good.

Low pressure oil supply groove 35 shown in Fig. 3 and Fig. 4, is arranged in the groove of the bearing surface of piston side of the 2nd flange 31, its side End be normally in suction hole 22, the end of other side is as the revolution of piston 44, compartment of terrain perforate are in piston 44 Planar slide it is inside and outside.The perforate of low pressure oil supply groove 35 is when the internal diameter of piston 44, and the oil of piston 44 is via the quilt of low pressure oil supply groove 35 The suction hole 22 of low pressure is drawn into, compression chamber 10a is flowed into together with air-breathing refrigerant.As described above, the oil mass flowed into is air-breathing The 0.7% of coolant quantity, changeable as needed.

Here, the fuel delivery from low pressure muffler 27 and low pressure oil supply groove 35 is outside fuel delivery, slide plate fuel delivery is Fuel delivery per cycle in closing space, from principle for, oil drain quantity will not be changed into.But, supplied in outside fuel delivery and slide plate Between oil mass, oily complementation often occurs.The relation, by Fig. 4 definitely.A sliding surface 40a and the B sliding surfaces of slide plate 40 40b is slide plate side sliding surface, and tip sliding surface 40c is the face slided with the periphery of piston 44.

Embodiment 2：

Fig. 5 is the longitudinal section of the compression mechanical part 5 of embodiment 2, and in order to show vane slot 12, slide plate 40 is not shown.Fig. 6 For the cylinder assembling view of embodiment 2.In Fig. 5 and Fig. 6, the by-pass prot 19 orthogonal with oil supplying hole 18 is along the upper of vane slot 12 Lower direction adds the heart in the cell.Therefore, as shown in fig. 6, by-pass prot 19 is in the impartial perforate of the both sides sliding surface of slide plate 40.Moreover, As shown in figure 5, the 2nd flange hole 31a position is changed to connect with by-pass prot 19.

By additional by-pass prot 19, the gases at high pressure of high pressure muffler 36 are discharged to from steam vent 33, direction is by from the 2nd method The by-pass prot 19 that blue 31a is halved flows to oil supplying hole 18, and gases at high pressure pass through the 1st flange hole 21a and warp from slide plate back side chamber 15 Blast pipe 3 is flowed out to by the 1st bearing cross-drilled hole 23.By additional by-pass prot 19, in the spraying of the middle high-pressure muffler 36 of by-pass prot 19 100% flowing of oil cooling matchmaker.Lubrication face needed for by-pass prot 19 close to slide plate 40, can be carried out to the most suitable lubrication of slide plate 40.

Embodiment 3：

Embodiment 3 shown in Fig. 7, compared with Example 1, can enter horizontal high voltage muffler 36 to the 1st bearing 20, low pressure noise reduction Configuration change of the device 27 to the 2nd bearing 30.According to the change, the internal low-voltage gas of housing 2 is from the low-voltage tube by cylinder 10 28 are flowed into low pressure muffler 27, and then low-pressure gas is flowed into compression chamber 10a via suction hole 22.Thereafter, the height compressed Body is calmed the anger from high pressure muffler 36, via the 1st flange hole 21a, slide plate back side chamber 15, the 2nd flange hole 31a, the 2nd bearing cross-drilled hole 39 Discharged from blast pipe 3.

Rotary compressor of the present utility model, applied to hydrocarbon or carbon dioxide for refrigerant equipment such as air conditioner, Refrigeration plant or water heater etc. are most suitable, can be also used as existing housing high pressure formula rotary compressor is substituted.Moreover, also Existing volume production equipment can be shared.

In the utility model, unless otherwise clearly defined and limited, fisrt feature is "above" or "below" second feature Can be that the first and second features are directly contacted, or the first and second features pass through intermediary mediate contact.Moreover, 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 " can be with Be fisrt feature immediately below second feature or obliquely downward, or be merely representative of fisrt feature level height less than second feature.

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

Although embodiment of the present utility model has been shown and described above, it is to be understood that above-described embodiment is Exemplary, it is impossible to it is interpreted as to limitation of the present utility model, one of ordinary skill in the art is in scope of the present utility model It is interior above-described embodiment to be changed, changed, replaced and modification.

Claims (6)

1. a kind of rotary compressor, it is characterised in that stored in the housing equal with the low-pressure lateral pressure of refrigerating circulatory device Motor section, compression mechanical part and lubricating oil, the housing are provided with air intake duct, and the motor section includes stator and rotor, institute Stating compression mechanical part includes：

Slidably support the 1st bearing and the 2nd bearing of bent axle；

It is provided with the cylinder for possessing compression chamber between the 1st bearing and the 2nd bearing, the compression chamber by described Bent shaft-driven piston, the cylinder, which is provided with to be provided with the slide plate moved back and forth in vane slot, the cylinder, to be located at The slide plate back side chamber of the rearward end of the vane slot,

It is located at the 1st bearing or the high pressure muffler of the 2nd bearing side；

From the compression chamber discharge high pressure refrigerant from the high pressure muffler via slide plate back side chamber be discharged to it is described The connected blast pipe of the condenser of refrigerating circulatory device.

2. rotary compressor according to claim 1, it is characterised in that the opposing sidewalls of the vane slot are provided with perforate In the oil supplying hole of slide plate back side chamber.

3. rotary compressor according to claim 2, it is characterised in that perforate is passed through in the by-pass prot of the high pressure muffler Communicated by the oil supplying hole with slide plate back side chamber.

4. rotary compressor according to claim 1, it is characterised in that also including being fixed on the remote described of the rotor The finger plate of the side of compression mechanical part, the air intake duct is towards the finger plate perforate.

5. rotary compressor according to claim 1, it is characterised in that one end of the 1st bearing or the 2nd bearing The oil discharge hole of oil supply loop provided with the bent axle.

6. a kind of refrigerating circulatory device, it is characterised in that including the rotary compression according to any one of claim 1-5 Machine.