CN205533245U - Rotary compressor and refrigerating system provided with same - Google Patents

Rotary compressor and refrigerating system provided with same Download PDF

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Publication number
CN205533245U
CN205533245U CN201620172892.8U CN201620172892U CN205533245U CN 205533245 U CN205533245 U CN 205533245U CN 201620172892 U CN201620172892 U CN 201620172892U CN 205533245 U CN205533245 U CN 205533245U
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CN
China
Prior art keywords
rotary compressor
oil
base bearing
compression chamber
eccentric shaft
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn - After Issue
Application number
CN201620172892.8U
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Chinese (zh)
Inventor
小津政雄
高斌
喻继江
张�诚
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangdong Midea Toshiba Compressor Corp
Guangdong Meizhi Compressor Co Ltd
Anhui Meizhi Precision Manufacturing Co Ltd
Original Assignee
Guangdong Meizhi Compressor Co Ltd
Anhui Meizhi Precision Manufacturing Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Guangdong Meizhi Compressor Co Ltd, Anhui Meizhi Precision Manufacturing Co Ltd filed Critical Guangdong Meizhi Compressor Co Ltd
Priority to CN201620172892.8U priority Critical patent/CN205533245U/en
Application granted granted Critical
Publication of CN205533245U publication Critical patent/CN205533245U/en
Withdrawn - After Issue legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a rotary compressor and refrigerating system provided with same. Taken in the compressing mechanism and the lubricating oil of battery operated motor, rotation type in rotary compressor's the sealed casing, be equipped with on the casing with the casing in the suction pipe of intercommunication, the motor includes stator and rotor. The compressing mechanism includes: the eccentric shaft of fixed rotor, to the eccentric shaft slide the base bearing that supports and supplementary bearing, the cylinder of being connected with base bearing and supplementary bearing, establish the silencer of breathing in on the base bearing. One side of the neighbouring base bearing of rotor is fixed with a rotatory section of thick bamboo, a rotatory section of thick bamboo and the silencer intercommunication of breathing in. Reach the inboard in the silencer of breathing in flows in the compression chamber of cylinder of a rotatory section of thick bamboo from inhaleing the inspiratory low pressure refrigerant of pipe from the rotatory outside. According to the utility model discloses a rotary compressor, a rotatory section of thick bamboo can play the gas -liquid separation effect, and the hydraulic pressure of having guaranteed compression efficiency and having avoidd the compression chamber contracts.

Description

Rotary compressor and there is its refrigeration system
Technical field
This utility model relates to refrigerating field, especially relates to a kind of rotary compressor and has its refrigeration system.
Background technology
In order to realize avoiding the environmental protection concepts such as greenhouse effects of the earth, the employing of the natural coolant such as carbonic acid gas and hydrocarbon gases is subject to very much Paying close attention to, flammable coolant R290 also has the CO of supertension coolant2The research that uses in rotary compressor and practical lead Enter and advance.Hydrocarbon gases is because being strong combustibility, so needing to limit to the coolant enclosed volume of freeze cycle.
On the other hand, CO2The operating pressure of gas is the highest, need that more than 10Mpa's is conventional resistance to if high voltage type housing Pressure.For such background, coolant enclosed volume is little, or the housing low pressure formula rotary compressor of housing wall thickness is just The practical of formula is expected strongly.
Compared with the rotary compressor of the conventional housing low pressure equal refrigerating capacity of formula reciprocating compressor, relative to back and forth Formula compressor, the chances are 50% for the actual housing internal volume of rotary compressor, the internal volume of rotary compressor significantly subtracts Little.Existing housing low pressure formula rotary compressor possesses reservoir in the suction loop of connection compression chamber, although Ke Yigui Keep away liquid coolant to suck, but then can not accept owing to the additional cost brought of reservoir increases and destroys compactedness.
Utility model content
One of technical problem that this utility model is intended to solve in correlation technique the most to a certain extent.
To this end, the utility model proposes a kind of rotary compressor, it is ensured that compression efficiency and evaded the hydraulic compression of compression chamber.
The utility model proposes a kind of refrigeration system with above-mentioned rotary compressor.
According to the rotary compressor of this utility model embodiment, in the housing of sealing, receive DYN dynamic motor, rotary Compression mechanism and lubricating oil, described housing is provided with and the suction tube connected in described housing, described motor include stator and The rotor rotated around described stator center;Described compression mechanism includes: fix the eccentric shaft of described rotor, to described eccentric shaft Carry out the base bearing that slidably supports and cylinder that supplementary bearing is connected with described base bearing and described supplementary bearing, be located at described main shaft The inhaling silencer held;The side of the neighbouring described base bearing of described rotor is fixed with rotating cylinder, and described rotating cylinder is with described Inhaling silencer connects;The low pressure refrigerant sucked from described suction tube arrives in described rotating cylinder from the outside of described rotating cylinder Side in described inhaling silencer is flowed into the compression chamber of described cylinder.
According to the rotary compressor of this utility model embodiment, rotating cylinder can play gas liquid separating function so that is drawn into Coolant in compression chamber is gas coolant, it is ensured that compression efficiency and evaded the hydraulic compression of compression chamber, it is not necessary in hull outside Reservoir is set, reduces cost and make rotary compressor compact conformation.
In embodiments more of the present utility model, the oil pump chamber possessed in described eccentric shaft with connect described inhaling silencer and Connected by low pressure oil filler point between the low pressure gas port of described compression chamber.
In embodiments more of the present utility model, the lubrication groove that the sliding surface of described eccentric shaft and described base bearing possesses One end does not connects with the rotor-side end of described base bearing.
In embodiments more of the present utility model, described rotary compressor is the horizontal machine of described eccentric shaft horizontal positioned.
According to the refrigeration system of this utility model embodiment, including the rotary compressor according to this utility model above-described embodiment, Described refrigeration system uses with bicarbonate or carbonic acid gas the coolant as main constituent.
According to the refrigeration system of this utility model embodiment, by arranging above-mentioned rotary compressor, cost can be reduced.
Accompanying drawing explanation
Fig. 1 is the schematic diagram that the rotary compressor according to this utility model embodiment applies when refrigeration system;
Fig. 2 is the part sectioned view of the rotary compressor according to this utility model embodiment;
Fig. 3 is the partial schematic diagram of the compression mechanism in the rotary compressor according to this utility model embodiment.
Reference:
Housing 2, shoe cream room 7, oil 8, suction tube 3,
Compress mechanism 5, cylinder 10, compression chamber 10a, base bearing 25, supplementary bearing 30, eccentric shaft 15, piston 22, slide Sheet 23, low pressure acoustic filter 26, high pressure acoustic filter 32, low pressure oil filler point 28, base bearing inlet hole 27, oil pump chamber 16, suction Oil pipe 21, spiral lamina 19, oilhole 18, lubrication groove 17, translot 20, high-pressure injection hole 29,
Motor 50, stator 51, rotor 55, motor coil 52, stator circumferential groove 53, end turn 52a,
Oil eliminator 40, high-pressure oil feed pipe 41,
Rotating cylinder 60, transom window 60a,
Condenser 70.
Detailed description of the invention
Of the present utility model embodiment is described below in detail, and the example of described embodiment is shown in the drawings.Below with reference to The embodiment that accompanying drawing describes is exemplary, it is intended to be used for explaining this utility model, and it is not intended that to of the present utility model Limit.
In description of the present utility model, it is to be understood that term " " center ", " longitudinally ", " laterally ", " length ", " width Degree ", " thickness ", " on ", D score, "front", "rear", "left", "right", " vertically ", " level ", " top ", " end " The orientation of the instruction such as " interior ", " outward ", " clockwise ", " counterclockwise ", " axially ", " radially ", " circumferential " or position relationship For based on orientation shown in the drawings or position relationship, it is for only for ease of description this utility model and simplifies description rather than refer to Show or imply the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore can not manage Solve as to restriction of the present utility model.
Additionally, term " first ", " second " are only used for describing purpose, and it is not intended that instruction or hint relative importance Or the implicit quantity indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can be expressed Or implicitly include at least one this feature.In description of the present utility model, " multiple " are meant that at least two, example Such as two, three etc., unless otherwise expressly limited specifically.
In this utility model, unless otherwise clearly defined and limited, term " install ", " being connected ", " connection ", " Gu Fixed " etc. term should be interpreted broadly, connect for example, it may be fixing, it is also possible to be to removably connect, or integral;Can Be mechanically connected, it is also possible to be electrical connection or each other can communication;Can be to be joined directly together, it is also possible to by between intermediary Connect connected, can be connection or the interaction relationship of two elements of two element internals, unless otherwise clear and definite restriction. For the ordinary skill in the art, concrete in this utility model of above-mentioned term can be understood as the case may be Implication.
Describing the rotary compressor according to this utility model embodiment below with reference to Fig. 1-Fig. 3, wherein rotary compressor can To apply in the refrigeration systems such as air-conditioner, refrigerating plant, water heater.
According to the rotary compressor of this utility model embodiment, DYN dynamic motor 50, rotation in the housing 2 of sealing, are received Rotatable compression mechanism 5 and lubricating oil 8, housing 2 is provided with and the suction tube 3 connected in housing 2, it follows that housing Pressure in 2 is low-pressure side, and rotary compressor is housing low pressure formula rotary compressor.
Motor 50 includes stator 51 and the rotor 55 around stator 51 central rotation.Compression mechanism 5 includes: fixed rotor 55 Eccentric shaft 15, the base bearing 25 that eccentric shaft 15 is slidably supported and supplementary bearing 30 and base bearing 25 and supplementary bearing 30 cylinders 10 connected, the inhaling silencer 26 being located on base bearing 25.Wherein cylinder 10 can be one or more, When cylinder 10 is one, rotary compressor is single cylinder compressor;When cylinder 10 is multiple, two adjacent cylinders Being provided with median septum between 10, rotary compressor is multicylinder compressor.
The side of the neighbouring base bearing 25 of rotor 55 is fixed with rotating cylinder 60, and rotating cylinder 60 connects with inhaling silencer 26. Rotating cylinder 60 rotates with rotor 55, and the perisporium of rotating cylinder 60 is provided with transom window 60a, covers on suction outside the lower end of rotating cylinder 60 On gas acoustic filter 26.
The low pressure refrigerant sucked from suction tube 3 from the inner side of the outside of rotating cylinder 60 arrival rotating cylinder 60 and is eliminated the noise through air-breathing Device 26 is flowed in the compression chamber 10a of cylinder 10.It is to say, low pressure refrigerant is drawn in housing 2 from suction tube 3, Low pressure refrigerant enters in rotating cylinder 60 from transom window 60a after motor 50, and the low pressure refrigerant in rotating cylinder 60 is through air-breathing Acoustic filter 26 enters in the compression chamber 10a of cylinder 10.
Rotating cylinder 60 plays the effect of gas-liquid separation with rotor 55 during rotating, gas coolant is entered by transom window 60a In rotating cylinder 60, heavy liquid coolant and oil 8 are fallen in the shoe cream room 7 in housing 2.
According to the rotary compressor of this utility model embodiment, by being fixed with rotating cylinder 60 on rotor 55, from suction tube 3 low pressure refrigerant sucked arrive the inner side of rotating cylinder 60 and are flowed into gas through inhaling silencer 26 from the outside of rotating cylinder 60 In the compression chamber 10a of cylinder 10, thus rotating cylinder 60 can play gas liquid separating function so that is drawn in compression chamber 10a Coolant be gas coolant, it is ensured that compression efficiency and evaded the hydraulic compression of compression chamber, it is not necessary to storage is set outside housing 2 Liquid device, reduces cost and makes rotary compressor compact conformation.
In embodiments more of the present utility model, the oil pump chamber 16 possessed in eccentric shaft 15 with connect inhaling silencer 26 and Connected by low pressure oil filler point 28 between the low pressure gas port of compression chamber 10a.It is to say, low pressure gas port connection is inhaled Gas acoustic filter 26 and compression chamber 10a, be provided with oil pump chamber 16, low pressure gas port and oil pump chamber 16 by low in eccentric shaft 15 Pressure injection oilhole 28 connects, and can enter into low-pressure gas by low pressure oil filler point 28 hence into the oil 8 in oil pump chamber 16 In passage, last oil 8 is lubricated in entering into compression chamber 10a.
In embodiments more of the present utility model, the one of the lubrication groove that the sliding surface of eccentric shaft 15 and base bearing 25 possesses End does not connects with the rotor-side end of base bearing 25.Such that it is able to the lubricating oil 8 in avoiding lubrication groove enters into inhaling silencer In 26, it is possible to reduce enter into the oil mass of the lubricating oil 8 in compression chamber 10a to reduce the oil spitting amount of rotary compressor.From And the fuel delivery to compression chamber, the oil spitting amount to refrigeration system can control below 1%.
In concrete examples more of the present utility model, rotary compressor is the horizontal machine of eccentric shaft 15 horizontal positioned.
According to the refrigeration system of this utility model embodiment, including the rotary compressor according to this utility model above-described embodiment, Refrigeration system uses with bicarbonate or carbonic acid gas the coolant as main constituent.
According to the refrigeration system of this utility model embodiment, by arranging above-mentioned rotary compressor, cost can be reduced.
The housing low pressure formula rotary compressor according to this utility model embodiment is described in detail below with reference to Fig. 1-Fig. 3.
Fig. 1 represents housing low pressure formula rotary compressor of the present utility model and connects the freeze cycle of this rotary compressor. Fig. 2 represents the compression detailed construction of mechanism 5, gas-liquid coolant isolation technics and the fueling technology to compression chamber.Fig. 3 is figure The alternate design example of fueling technology in 2.
As depicted in figs. 1 and 2, rotary compressor is by the compression mechanism 5 received in housing 2 and electrodynamic machine 50, storage The oil 8 enclosed in oil pocket 7 forms.Oil eliminator 40 is possessed in the outside of housing 2.Compression mechanism 5 is welded by housing 2 Base bearing 25 that the perforate end of the compression chamber 10a that fixing cylinder 10 possesses with the center of cylinder 10 is connected and supplementary bearing 30, being driven by eccentric shaft 15 of being possessed in they eccentric shaft 15 of sliding support, compression chamber 10a carries out eccentric rotary Piston 22 and the slide plate 23 of eccentric rotary common reciprocal movement of piston 22, the low pressure that is fixed on base bearing 25 eliminate the noise Device 26 (being above-mentioned inhaling silencer), it is fixed on the compositions such as high pressure acoustic filter 32 bottom supplementary bearing 30.Motor 50 Rotor 55 be fixed on eccentric shaft 15.
Stator 51 and rotor 55 that motor 50 is fixed by the inner circumferential of housing 2 form, and possess motor coil 52 in stator 51. There are 4 stator circumferential groove 53 periphery of stator 51, and stator circumferential groove 53 becomes suction gas or the movable passageway of oil.Motor 50 have employed direct current (DC) frequency conversion motor that can change rotary speed.But, this utility model is unrelated with motor form, Constant-seed motor or the frequency conversion motor etc. that use exchange (AC) can also.
In fig. 2, utilize 4 rivets 57 required in the assembling of rotor 55, secure rotating cylinder in the lower end of rotor 55 60.There is several transom window 60a the periphery of rotating cylinder 60, the lower STH end of rotating cylinder 60 and the low pressure acoustic filter of sheet metal molding The upper periphery of 26 is connected by the least gap.Due to the rotation of piston 22, after the suction pressure of compression chamber 10a reduces, Gas coolant within rotating cylinder 60 is in low pressure acoustic filter 26 flows to compression chamber 10a.
After the rotary compressor generally carried in air-conditioner starts, take around 15~20 points to freeze cycle temperature stabilization Transition operation or crank-up time.It addition, in stable operation occur Defrost operation with and subsequent within about 10 minutes, be Unstable operating condition.In such irregular operation, the coolant begun to flow within housing 2 from suction tube 3 is overheated Degree diminishes, for gas-liquid mixed coolant.It addition, in freeze cycle, the oil that is circulated is mixed in coolant.
Be not equipped with reservoir and rotary compressor that housing pressure is low-pressure side enclosure interior carry out gas-liquid coolant point From, compression chamber must optionally suck gas coolant.Because, after compression chamber sucks liquid coolant, 1. can not be from instability Operation is transferred to stable operation, or is transferred to the time that stable operation needs are longer.2. the liquid coolant that compression chamber sucks is carried out If compression, owing to can produce excessive pressure, eccentric shaft can produce fault etc. in moment.3. the fuel delivery meeting to compression chamber Instability, owing to freeze cycle being told oil, if freeze cycle efficiency declines, can bring temperature controlled wild effect.
This utility model uses following method to improve these problems: (1) is equipped with and utilizes the rotation of rotor 55 to possess gas-liquid separation merit The rotating cylinder 60 of energy;(2) the low pressure oil filler point 28 passing through to possess in base bearing 25 is to base bearing inlet hole 27 and eccentric shaft The oil pump chamber 16 of 15 carries out short circuit, improves the fuel delivery precision to compression chamber.It follows that these technology are illustrated.
The mixing coolant that the gas-liquid coolant that the suction tube 3 possessed to housing 2 upper end from outside freeze cycle flows into becomes with line of oils The lower space of motor 50 is flowed to after being diverted to motor coil 52 and stator circumferential groove 53.Between this, mixing coolant is by electricity Machine coil 52 grade is heated, and most of gas-liquid coolant become gas coolant.
Gas coolant flows into rotating cylinder 60 from the transom window 60a rotated from the periphery of end turn 52a after motor coil 52, From low pressure acoustic filter 26 through base bearing inlet hole 27 flows to compression chamber 10a.The proportion in rotating cylinder 60 can not be flowed to Big liquid coolant and oil are fallen in shoe cream room 7 and are mixed with oil 8.Its result, the pasta of shoe cream room 7 rises, can arrive The bottom of low pressure acoustic filter 26.If oil 8 has the dilution of substantial amounts of liquid coolant, the problem that the viscosity of oil 8 has decline.
But, owing to there being the gas-liquid coolant motor by high temperature, motor temperature can decline, the aerification quilt of gas-liquid coolant simultaneously Promote.Compression chamber 10a simply optionally sucks gas coolant, can avoid the suction of heavy liquid coolant and oil. Even if it addition, pasta rises, rotating cylinder 60 also will not be arrived.If assuming that compression chamber 10a sucks liquid coolant, in compressed line Cheng Zhonghui produces liquid compression, can damage eccentric shaft 15.It addition, what the oil returned from freeze cycle was sucked by compression chamber 10a Words, the precision that oil spitting amount described later controls can decline.
The shoe cream room of housing high pressure formula rotary compressor in high-pressure side so can be by inside and outside compression chamber to the fuel feeding of compression chamber Pressure reduction auto-supply.But, the shoe cream room 7 of housing low pressure formula in low-pressure side, so, the pressure reduction of compression chamber 10a is supplied Oil is false.Therefore, the method for employing is: utilize the suction coolant loop lower than the pressure of housing 2 by the oil of shoe cream room 7 8 are supplied in compression chamber.Such as arranging playpipe, the two ends of playpipe connect with shoe cream room and compression chamber respectively, utilize pressure Oil in shoe cream room is brought in compression chamber by the reciprocating motion of the piston of contracting intracavity.
In housing low pressure formula rotary compressor, utilization sucks that coolant loop supplies to compression chamber 10a from shoe cream room 7 Divide oil mass by oil eliminator 40, become the oil circulation amount (OCR) circulated in refrigeration systems.Housing high pressure formula rotates Formula compressor is with the distinctive points of housing low pressure formula rotary compressor: the oil discharge of compression chamber in housing high pressure formula compressor To accumulate in shoe cream room in the housing of same pressure, but housing low pressure formula compressor without enclosure interior to refrigeration system In tell oil.Additionally, the circulation oil spitting amount/circulating refrigerant amount of OCR=freeze cycle.
On the other hand, to the oil circulation amount (OCR) of freeze cycle if it exceeds if the 1% of refrigerant circulation, can cause The penalty of heat exchanger, so that the operating oil spitting amount of refrigeration system needs management to less than 1%, this can become housing is low The big problem of the commercialization of pressure type rotary compressor.Accordingly, it would be desirable to compression chamber fuel feeding is managed so that it is be not easy with Service condition change and change.
In fig. 2, the lower STH end in the oil pump chamber 16 of cylinder that possesses in the axle of eccentric shaft 15 possessed fuel sucking pipe 21, The upper end in oil pump chamber 16 is closed pore near the centre of eccentric shaft 15.The spiral lamina 19 inserting oil pump chamber 16 makes pump oil mass meeting Increase.
Due to the rotation of eccentric shaft 15, the oil 8 that fuel sucking pipe 21 sucks from shoe cream room 7 can rise oil pump chamber 16, oil 8 The oilhole 18 possessed from the periphery wall of eccentric shaft 15 flows out to lubrication groove 17, and oil 8 flows out to piston 22 from lubrication groove 17 Internal perisporium.During oil 8 flowing, the sliding part of eccentric shaft 15 and base bearing 25 can lubricate.Additionally, in order to anti- Only to low pressure acoustic filter 26 effluent oil, lubrication groove 17 not upper end perforate to base bearing 25.
Oil is in the way that the internal perisporium of piston 22 flows, in every turn of eccentric shaft 15, and lubrication groove 17 and low pressure oil filler point 28 Connection, so, towards the low pressure oil filler point 28 that pressure is low, oil can carry out the shunting of indirect.Towards low pressure oil filler point 28 Total oil mass of shunting is fed in compression chamber 10a, from the glade plane space of the lubrication of compression chamber 10a and piston 22 etc. out Gas leakage can be prevented.As it has been described above, the circulation oil mass (O that fuel delivery is freeze cycle to compression chamber 10a CR)。
In order to OCR being controlled about 1% or less than 1%, be to use long tubule, by housing and compression chamber in the past Pressure reduction attract the oil of shoe cream room.For this point, from the beginning of the oil pump chamber 16 that this utility model possesses from eccentric shaft 15 Indirectly compression chamber 10a is carried out fuel feeding, so there is no need to use tubule, can be by the aperture of low pressure oil filler point 28 It is optimized Deng to fuel delivery.Accordingly, because the different fluctuation to the fuel delivery of compression chamber 10a of service condition can be lacked, and, It is the easiest to adjust.It addition, this utility model possesses to evade, and compression chamber 10a is produced the function that liquid coolant sucks, not only make The circulation oil mass of freeze cycle is stable, also has the effect making circulating refrigerant amount stable.
Next, Fig. 3 is the substitute technology carrying out oil shunting from oil pump chamber 16 to low pressure oil filler point 28.The master of eccentric shaft 15 The translot 20 that axle bottom is arranged is configured with oilhole 18.Oilhole 18 is to oil pump chamber 16 perforate, so along with eccentric shaft 15 Rotating, the oil in oil pump chamber 16 can be flowed in low pressure oil filler point 28.
Translot 20 has the width of W, so compared with the design of Fig. 2, can become the supply time of low pressure oil filler point 28 Long.It addition, by the value adjusting W, can easily carry out fuel delivery adjustment.In the design of Fig. 3, Fig. 2 uses Lubrication groove 17 can be with arbitrary disposition in eccentric shaft 15 or base bearing 25.
It addition, the oil eliminator 40 shown in Fig. 1 captures the oil of 1% from compression chamber 10a discharge and stores.Meanwhile, from High-pressure oil feed pipe 41 out and through such as the 3 of high-pressure injection hole 29~the oil of 4% to compression chamber 10a fuel feeding.High-pressure injection Hole 29 is positioned at following angular range to the position of the opening of compression chamber perforate: the pressure making compression chamber 10a is intermediate pressure The anglec of rotation of the piston 22 during power, such as between 40 °~150 °.
By the fuel feeding started from oil eliminator 40, total fuel delivery of compression chamber 10a includes from low pressure oil filler point 28 out Including 1%, need 4~the oil of 5% in order to ensure compression efficiency.This 4~5% oil with from compression chamber 10a discharge out Coolant together, is discharged in oil eliminator 40, again captured in oil eliminator 40.
But, the volume of oil eliminator 40 have restriction, so unrelated with the volume of oil eliminator 40 and separating of oil efficiency, Be initially supplied from low pressure oil filler point 28 compression chamber 10a 1% oil, discharge to condenser 70 from oil eliminator 40, become Circulation oil spitting amount to refrigeration system.That is, oil eliminator 40 is by recycling the oil of capture between compression chamber 10a, Prevent compressor efficiency from reducing.The oil mass that can recycle is determined by the separation efficiency etc. of oil eliminator 40.
Rotary compressor of the present utility model can be not only upright single cylinder rotary compressor, it is also possible to being that housing is intrinsic pressure is The horizontal rotary compressor that the multi-cylinder rotary compressor of low-pressure side or eccentric shaft 15 are placed for horizontal direction, it addition, rotation Rotary compressor can also is that piston 22 and the rocking type rotary compressor of slide plate 23 integration.
Rotary compressor of the present utility model, preferably apply in hydrocarbon or machine that carbonic acid gas is coolant, can Using the succedaneum as existing housing high pressure formula rotary compressor.
In this utility model, unless otherwise clearly defined and limited, fisrt feature second feature " on " or D score Can be that the first and second features directly contact, or the first and second features are by intermediary mediate contact.And, Fisrt feature second feature " on ", " top " and " above " but fisrt feature directly over second feature Or oblique upper, or it is merely representative of fisrt feature level height higher than second feature.Fisrt feature second feature " under ", " lower section " and " below " can be fisrt feature immediately below second feature or obliquely downward, or it is special to be merely representative of first Levy level height less than second feature.
In the description of this specification, reference term " embodiment ", " some embodiments ", " example ", " specifically show Example " or the description of " some examples " etc. means to combine this embodiment or example describes specific features, structure, material or Feature is contained at least one embodiment of the present utility model or example.In this manual, schematic to above-mentioned term Statement is necessarily directed to identical embodiment or example.And, the specific features of description, structure, material or feature Can be so that one or more embodiments in office or example to combine in an appropriate manner.Additionally, in the case of the most conflicting, Those skilled in the art can be by the different embodiments described in this specification or example and different embodiment or the spy of example Levy and be combined and combine.
Although above it has been shown and described that embodiment of the present utility model, it is to be understood that above-described embodiment is example Property, it is impossible to being interpreted as restriction of the present utility model, those of ordinary skill in the art can in the range of this utility model Above-described embodiment be changed, revise, to replace and modification.

Claims (5)

1. a rotary compressor, it is characterised in that received DYN dynamic motor, revolving pressure in the housing of sealing Contracting mechanism and lubricating oil, described housing is provided with and the suction tube connected in described housing, and described motor includes stator and around institute State the rotor that stator center rotates;
Described compression mechanism includes: the fixing eccentric shaft of described rotor, the base bearing that described eccentric shaft is slidably supported and Cylinder that supplementary bearing is connected with described base bearing and described supplementary bearing, the inhaling silencer being located on described base bearing;
The side of the neighbouring described base bearing of described rotor is fixed with rotating cylinder, and described rotating cylinder connects with described inhaling silencer;
The low pressure refrigerant sucked from described suction tube arrives the inner side of described rotating cylinder and through described from the outside of described rotating cylinder Inhaling silencer is flowed in the compression chamber of described cylinder.
Rotary compressor the most according to claim 1, it is characterised in that the oil pump chamber possessed in described eccentric shaft with Connect and connected by low pressure oil filler point between the low pressure gas port of described inhaling silencer and described compression chamber.
Rotary compressor the most according to claim 1, it is characterised in that described eccentric shaft and the cunning of described base bearing The one end of the lubrication groove possessed on dynamic face does not connects with the rotor-side end of described base bearing.
Rotary compressor the most according to claim 1, it is characterised in that described rotary compressor is described bias The horizontal machine of axle horizontal positioned.
5. a refrigeration system, it is characterised in that include according to the rotary compressor according to any one of claim 1-4, Described refrigeration system uses with bicarbonate or carbonic acid gas the coolant as main constituent.
CN201620172892.8U 2016-03-04 2016-03-04 Rotary compressor and refrigerating system provided with same Withdrawn - After Issue CN205533245U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105545749A (en) * 2016-03-04 2016-05-04 广东美芝制冷设备有限公司 Rotating compressor and refrigeration system provided with same

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105545749A (en) * 2016-03-04 2016-05-04 广东美芝制冷设备有限公司 Rotating compressor and refrigeration system provided with same
CN105545749B (en) * 2016-03-04 2018-09-18 广东美芝制冷设备有限公司 Rotary compressor and refrigeration system with it

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Granted publication date: 20160831

Effective date of abandoning: 20180918