CN204961297U - Rotary compressor - Google Patents
Rotary compressor Download PDFInfo
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- CN204961297U CN204961297U CN201520529098.XU CN201520529098U CN204961297U CN 204961297 U CN204961297 U CN 204961297U CN 201520529098 U CN201520529098 U CN 201520529098U CN 204961297 U CN204961297 U CN 204961297U
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Abstract
The utility model discloses a rotary compressor, include: cylinder, supplementary bearing and oil absorption structure. Be equipped with the compression chamber in the cylinder, be equipped with compression chamber sunction inlet on the internal perisporium in compression chamber. The supplementary bearing is established on the terminal surface of cylinder, is equipped with in supplementary bearing and/or the cylinder and compresses the spaced apart stock solution chamber in chamber, and the stock solution chamber has stock solution chamber sunction inlet, and the stock solution chamber is through compression chamber sunction inlet and compression chamber intercommunication. The first end of oil absorption structure is connected to compression chamber sunction inlet, and the second end of oil absorption structure extends to the stock solution intracavity. According to the utility model discloses a rotary compressor, can with refrigerant oil continuous the compression intracavity inhales, refrigerant oil can lubricate the spare part of compression intracavity, the oil return structure of the compressor in perfect built -in stock solution chamber has reduced the wearing and tearing of spare part, has improved the compressor reliability.
Description
Technical field
The utility model relates to compressor field, especially relates to a kind of rotary compressor.
Background technique
Liquid-storage container is the vitals of high back pressure rolling rotor type compressor, has impurity screening, stores unnecessary liquid refrigerants, separation gas liquid refrigerants occurs the functions such as hydraulic compression to prevent compressor.In recent years, air-conditioning system price reduces year by year, and the compressor cost as its core component also needs corresponding reduction.
Liquid-storage container is always the important consideration point falling this cost.Cost for liquid-storage container reduces, and mainly contains following method in technology disclosed in associated materials: one, liquid-storage container miniaturization; Two, liquid-storage container is cancelled (here, the cancellation not referred to truly cancelled by liquid-storage container, but the redundant space found on compressor replaces liquid-storage container); Three, the optimization of liquid-storage container material, manufacture, assembly technology aspect.
Conventional compressor is positioned at outside compressor body due to liquid-storage container, and the spill port height of liquid-storage container inside is usually above cylinder suction port height, and namely in liquid-storage container, unnecessary refrigerator oil is turned back in compressor body in time by the effect of cylinder inhalation power and gravity.But when compressor adopts the built-in structure of liquid storage cylinder, because the storage location of refrigerant and refrigerator oil mixing material is lower than cylinder cold media air suction port, gravity is to the event resolves of oil return, therefore refrigerator oil cannot rely on gravity to enter compression chamber.In addition, when not having mixed liquid to be full of in liquid storage space, the inlet port lower end on supplementary bearing and liquid levels depart from, and there will be the problem that compression chamber cannot aspirate refrigerator oil, and causing can not continuously oil suction.
Model utility content
The utility model is intended to solve the technical problem existed in prior art.For this reason, the utility model aims to provide a kind of rotary compressor of built-in liquid storage cylinder, to ensure that compression chamber is to refrigerator oil continuous sucking in liquid storage cylinder.
According to the rotary compressor of the utility model embodiment, comprising: cylinder, be provided with compression chamber in described cylinder, the inner circle wall of described compression chamber is provided with compression chamber suction port; Supplementary bearing, described supplementary bearing is located on the end face of described cylinder, be provided with liquid storage cylinder isolated with described compression chamber in described supplementary bearing and/or described cylinder, described liquid storage cylinder has liquid storage cylinder suction port, and described liquid storage cylinder is communicated with described compression chamber by described compression chamber suction port; Oil suction structure, the first end of described oil suction structure is connected to described compression chamber suction port, and the second end of described oil suction structure extends in described liquid storage cylinder to be drawn onto in described compression chamber suction port by the refrigerator oil in described liquid storage cylinder.
According to the rotary compressor of the utility model embodiment, liquid storage cylinder is provided with in supplementary bearing and/or cylinder, by arranging oil suction structure to extend in liquid storage cylinder, so that the refrigerator oil in liquid storage cylinder is drawn in compression chamber suction port, thus refrigerator oil is drawn in compression chamber continuously, refrigerator oil can lubricate the component in compression chamber, the oil-returning structure of the compressor of perfect built-in liquid storage cylinder, reduce the wearing and tearing of component, improve compressor reliability.
In certain embodiments, the circulation passage that is radially spaced with described compression chamber is provided with in described cylinder to be configured to described liquid storage cylinder at least partially.
Particularly, described cylinder comprises: outer cylinder body, and described liquid storage cylinder suction port is located on the sidewall of described outer cylinder body; Inner cylinder body, described inner cylinder body is located at the inner side of described outer cylinder body, a described inner cylinder body part is circumferentially connected cylinder body with being provided with between described outer cylinder body, described inner cylinder body has through center hole to form described compression chamber, described outer cylinder body, limit described circulation passage between described inner cylinder body and described connection cylinder body, described compression chamber suction port is located on the sidewall of described inner cylinder body.
In certain embodiments, groove is provided with in described supplementary bearing to be configured to described liquid storage cylinder at least partially.
Particularly, described supplementary bearing comprises: the flange of annular, and described flange is located on the end face of described cylinder; Axle journal, described axle journal extends from the inner circumference edge edge of described flange towards the direction away from described cylinder; Peripheral board, described peripheral board extends from the outer periphery edge of described flange towards the direction away from described cylinder, and described peripheral board, described axle journal and described flange limit described groove; Described rotary compressor also comprises end plate, and described end plate buckle is combined on described peripheral board and described axle journal to close described groove.
In certain embodiments, described oil suction structure comprises fuel sucking pipe, and the first end of described fuel sucking pipe is communicated with described compression chamber suction port, and the second end of described fuel sucking pipe extends in described liquid storage cylinder.Thus, structure is simple, easy to manufacture, and oil absorbing effect is good.
In certain embodiments, the perisporium of described compression chamber suction port is provided with the first attachment hole being communicated with described liquid storage cylinder, and the described first end of described fuel sucking pipe is fixed in described first attachment hole.
In certain embodiments, the perisporium of described compression chamber suction port is provided with the first attachment hole, described supplementary bearing is provided with the second attachment hole being communicated with described first attachment hole and described liquid storage cylinder respectively, and the described first end of described fuel sucking pipe extend in described second attachment hole.
Advantageously, described first attachment hole be configured to pore at least partially, the aperture of described pore is 0.1-2mm, and described pore is between described compression chamber suction port and the first end of described fuel sucking pipe.Thus, under the pumping action and capillarity of cylinder, the refrigerator oil entered in oil guide pipe upwards can move, thus automatically enter into compression chamber.
Alternatively, the end face of the described cylinder of connection of described supplementary bearing is provided with the draw-in groove be connected with described second attachment hole, and the first end periphery wall of described fuel sucking pipe is provided with the fixture block coordinated with described draw-in groove.Thus, fuel sucking pipe is stuck in draw-in groove internal fixtion by fixture block, and means of fixation is simple, and it is firm to connect, and can prevent fuel sucking pipe from coming off in the second attachment hole.
Alternatively, described fuel sucking pipe is porous material pipe.Here, when refrigerant flows into the hole on porous material tube wall, can be larger due to the voids of porous material, thermal conductivity is little, causes porous material pipe own temperature to reduce, and therefore porous material pipe is easier inhales refrigerator oil to compression chamber.
Preferably, described fuel sucking pipe is foam aluminum tube or porous ceramic pipe.Thus, fuel sucking pipe porosity ratio is higher, and thermal conductivity is little, and oil absorption is strong.
Advantageously, the second end end face of described fuel sucking pipe and the spacing of described liquid storage cylinder diapire are 1-2mm.Thus, the second end of fuel sucking pipe is immersed in refrigerating machine oil reservoir as far as possible, and fuel sucking pipe end face distance liquid storage cylinder diapire can be avoided excessively closely to cause blocking.
Advantageously, the internal diameter of described fuel sucking pipe is equal with the aperture of described pore.Thus be beneficial to refrigerator oil and automatically flow towards compression chamber suction port along fuel sucking pipe.
Additional aspect of the present utility model and advantage will part provide in the following description, and part will become obvious from the following description, or be recognized by practice of the present utility model.
Accompanying drawing explanation
Above-mentioned and/or additional aspect of the present utility model and advantage will become obvious and easy understand from accompanying drawing below combining to the description of embodiment, wherein:
Fig. 1 is the structural representation of the rotary compressor according to the utility model embodiment;
Fig. 2 is the structural representation of cylinder according to the utility model embodiment and suction pipe;
Fig. 3 is the structural representation of cylinder, supplementary bearing and end plate according to the utility model embodiment;
Fig. 4 is the structural representation of the fuel sucking pipe according to the utility model embodiment;
Fig. 5 is the structural representation according to the fuel sucking pipe of the utility model embodiment and cylinder, supplementary bearing, end plate;
Fig. 6 is the structural representation according to the fuel sucking pipe of the utility model embodiment and cylinder, supplementary bearing, end plate;
Fig. 7 is the structural representation according to the fuel sucking pipe of the utility model embodiment and cylinder, supplementary bearing, end plate.
Reference character:
100: rotary compressor;
1: exhaust manifolds; 2: upper shell; 3: middle shell; 4: stator; 5: rotor; 6: bent axle; 7: main bearing; 10: lower shell body; 11: piston; 12: slide plate; 16: suction pipe;
A: shell; B: electric machine assembly; C: compression assembly; V: receiving cavity;
8: cylinder; P: compression chamber; A: compression chamber suction port; 81: outer cylinder body; 82: inner cylinder body; 820: center hole; 83: connect cylinder body; 84: the first attachment holes; 841: pore; 85: vane slot;
9: supplementary bearing; 91: flange; 92: axle journal; 93: peripheral board; 94: the second attachment holes; 95: draw-in groove;
Q: liquid storage cylinder; B: liquid storage cylinder suction port; Q1: circulation passage; Q2: groove; Q3: through hole;
14: oil suction structure; 141: fuel sucking pipe; 142: fixture block;
15: end plate; 151: shrinkage pool;
M: fluid mixture; M1: refrigerating machine oil reservoir; M2: liquid refrigerants layer.
Embodiment
Be described below in detail embodiment of the present utility model, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Be exemplary below by the embodiment be described with reference to the drawings, be intended to for explaining the utility model, and can not be interpreted as restriction of the present utility model.
In description of the present utility model, it will be appreciated that, term " " center ", " length ", " highly ", " thickness ", " on ", D score, " vertically ", " level ", " top ", " end ", " interior ", " outward ", " axis ", " radial direction ", orientation or the position relationship of the instruction such as " circumference " are based on orientation shown in the drawings or position relationship, only the utility model and simplified characterization for convenience of description, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as restriction of the present utility model.
In addition, term " first ", " second " only for describing object, and can not be interpreted as instruction or hint relative importance or imply the quantity indicating indicated technical characteristics.Thus, be limited with " first ", the feature of " second " can express or impliedly comprise one or more these features.In description of the present utility model, except as otherwise noted, the implication of " multiple " is two or more.
In description of the present utility model, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection ", " fixing " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or integral; Can be mechanical connection, also can be electrical connection; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals or the interaction relationship of two elements.For the ordinary skill in the art, concrete condition the concrete meaning of above-mentioned term in the utility model can be understood.
In the utility model, unless otherwise clearly defined and limited, fisrt feature second feature it " on " or D score can comprise the first and second features and directly contact, also can comprise the first and second features and not be directly contact but by the other characterisation contact between them.And, fisrt feature second feature " on ", " top " and " above " comprise fisrt feature directly over second feature and oblique upper, or only represent that fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " below " and " below " comprise fisrt feature immediately below second feature and tiltedly below, or only represent that fisrt feature level height is less than second feature.
Below with reference to Fig. 1-Fig. 7, the rotary compressor 100 according to the utility model embodiment is described.
According to the rotary compressor 100 of the utility model embodiment, as shown in Figure 1, rotary compressor 100 comprises: shell A, electric machine assembly B and compression assembly C.Shell A is seal container, limits receiving cavity V in shell A.Electric machine assembly B and compression assembly C is all located in shell A, and namely electric machine assembly B and compression assembly C is all located in receiving cavity V.In the example illustrated in figure 1, shell A comprises middle shell 3, upper shell 2 and lower shell body 10, and middle shell 3 is formed as the tubular of upper and lower both ends open, and upper shell 2 and lower shell body 10 are located at the two ends up and down of middle shell 3 respectively.Rotary compressor 100 also comprises exhaust manifolds 1, and exhaust manifolds 1 to be located on shell A and to be communicated with receiving cavity V.
As shown in Figure 1, electric machine assembly B comprises stator 4 and coordinates the rotor 5 rotated with stator 4.In the example of Fig. 1, electric machine assembly B is positioned at the top of compression assembly C, and stator 4 is fixed on shell A, and rotor 5 is located in stator 4 rotationally, and namely electric machine assembly B is inner rotor motor.
As depicted in figs. 1 and 2, compression assembly C comprises bent axle 6, cylinder assembly, supplementary bearing 9, main bearing 7, piston 11 and slide plate 12 etc., and cylinder assembly can comprise one or more cylinder 8, is provided with compression chamber P in cylinder 8, when cylinder 8 is multiple, between adjacent two cylinders 8, be provided with dividing plate.Wherein, bent axle 6 runs through cylinder assembly and is enclosed within outside rotor 5 on bent axle 6, bent axle 6 be fixedly connected with rotor 5 with rotor 5 synchronous rotary.Main bearing 7 and supplementary bearing 9 are located at the two ends of cylinder assembly respectively, and main bearing 7 and/or supplementary bearing 9 are provided with the exhaust port (scheming not shown) being communicated with compression chamber P, and bent axle 6 coordinates to be located at rotationally in shell A with main bearing 7 and supplementary bearing 9 respectively.Be located in compression chamber P to piston 11 eccentric rotary, bent axle 6 is connected with piston 11 with driven plunger 11 eccentric rotary, and bent axle 6 drives piston 11 to rotate and compresses the refrigerant in compression chamber P.Cylinder interior space is divided into hyperbaric chamber and low-pressure cavity by slide plate 12, compression refrigerant in piston rotation process, and the pressure in hyperbaric chamber is raised, and when pressure is increased to the pressure outside slightly larger than compression assembly C, namely pressurized gas refrigerant discharges by exhaust port.
With reference to Fig. 1-Fig. 3, cylinder 8 is provided with compression chamber suction port a on the inner circle wall of compression chamber P, be provided with isolated liquid storage cylinder Q, liquid storage cylinder Q with compression chamber P in supplementary bearing 9 and/or cylinder 8 and have liquid storage cylinder suction port b, liquid storage cylinder Q is communicated with compression chamber P by compression chamber suction port a.
Here, liquid storage cylinder Q can be located in cylinder 8, and liquid storage cylinder Q also can be located on supplementary bearing 9, also can be equipped with liquid storage cylinder Q in supplementary bearing 9 and cylinder 8, not do concrete restriction here.
Particularly, as depicted in figs. 1 and 2, liquid storage cylinder suction port b is connected with suction pipe 16, and simultaneously suction pipe 16 stretches out shell A and is connected with the circulatory system refrigerant pipeline of rotary compressor 100 outside.Rotary compressor 100 flows in liquid storage cylinder Q (as shown in arrow d1 in Fig. 1,2) by the gas-liquid mixture that suction pipe 16 sucks, and in the gas-liquid mixture of suction, gaseous coolant flows into compression chamber P to be compressed into high pressure refrigerant (as shown in arrow d2, d3 in Fig. 1,2) by compression chamber suction port a.And gravitate impact, in the gas-liquid mixture of suction, liquid refrigerants and refrigerator oil landing converge in liquid storage cylinder Q.Certainly, the heat of vaporization that liquid refrigerants absorbs cylinder 8 in liquid storage cylinder Q is after gaseous state, and still can flow into compression chamber P to compress by compression chamber suction port a, the evaporation of liquid refrigerants simultaneously also can prevent cylinder 8 temperature too high.
Wherein, liquid storage cylinder Q has certain volume, a certain amount of liquid refrigerants can be held, thus effectively prevent hydraulic compression, can play the effect of air-breathing buffering, the noise that during reduction compressor air suction, air-breathing pulsation produces, and liquid storage cylinder Q also can be used as the liquid-storage container in traditional compressor simultaneously, namely the external liquid-storage container of traditional compressor can not be set according to the rotary compressor 100 of the utility model embodiment, and replace liquid-storage container by liquid storage cylinder Q and maintain the normal work of rotary compressor 100.
With reference to Fig. 1, rotary compressor 100 also comprises oil suction structure 14, and the first end of oil suction structure 14 is connected to compression chamber suction port a, and the second end of oil suction structure 14 extends in liquid storage cylinder Q, to be drawn onto in compression chamber suction port a by the refrigerator oil in liquid storage cylinder Q.The refrigerator oil sucked flows into compression chamber P with gaseous coolant, lubricates movable members such as the piston 11 in compression chamber P, slide plate 12 and bent axles 6.That is, oil suction structure 14 is equivalent to the return tube in traditional liquid-storage container.
Wherein, in the utility model embodiment, the density of the liquid refrigerants that rotary compressor 100 adopts is less than the density of refrigerator oil, and such as, refrigerant can be R22.Like this, fluid mixture M is because of the different easily layering of density, and in the liquid of layering in liquid storage cylinder Q, bottom is refrigerating machine oil reservoir M1, and upper strata is liquid refrigerants layer M2.Like this, oil suction structure 14 extend in liquid storage cylinder Q, especially when the second end of oil suction structure 14 extend into the bottom of liquid storage cylinder Q, can ensure that oil suction structure 14 is inserted in refrigerator oil all the time when compressor uses as far as possible, ensure that refrigerator oil can be drawn in compression chamber P by oil suction structure 14 continuously, ensure the continuity of compression chamber P absorption refrigerating machine oil, improve rotary compressor 100 reliability of operation, avoid refrigerator oil and accumulate in a large number in liquid storage cylinder Q.
According to the rotary compressor 100 of the utility model embodiment, liquid storage cylinder Q is provided with in supplementary bearing 9 and/or cylinder 8, by arranging oil suction structure 14 to extend in liquid storage cylinder Q, the refrigerator oil in liquid storage cylinder Q is drawn in compression chamber suction port a, thus refrigerator oil is drawn into continuously in compression chamber P, refrigerator oil can lubricate the component in compression chamber P, the oil-returning structure of the compressor of perfect built-in liquid storage cylinder Q, reduce the wearing and tearing of component, improve compressor reliability.
In certain embodiments, as shown in Figure 2, the circulation passage Q1 that is radially spaced with compression chamber P is provided with in cylinder 8 to be configured to liquid storage cylinder Q at least partially.
Wherein, circulation passage Q1 can be formed in the inside of cylinder 8, and circulation passage Q1 also can upwards or downwards open wide.When circulation passage Q1 is open upwards, main bearing 7 or dividing plate can close circulation passage Q1.When circulation passage Q1 opens wide downwards, supplementary bearing 9 can close circulation passage Q1.
In a specific embodiment, as shown in Figures 2 and 3, cylinder 8 comprises: outer cylinder body 81, inner cylinder body 82 be connected cylinder body 83.Inner cylinder body 82 is located at the inner side of outer cylinder body 81, and inner cylinder body 82 part is circumferentially connected cylinder body 83 with being provided with between outer cylinder body 81, outer cylinder body 81, inner cylinder body 82 and connect between cylinder body 83 and limit circulation passage Q1.In the embodiment shown in Fig. 3 and Fig. 1, circulation passage Q1 is through cylinder 8 in the vertical direction, and the upper end of circulation passage Q1 is closed by main bearing 7.
Wherein, as shown in Figures 2 and 3, inner cylinder body 82 has through center hole 820 to form compression chamber P, and compression chamber suction port a is located on the sidewall of inner cylinder body 82, and liquid storage cylinder suction port b is located on the sidewall of outer cylinder body 81.Alternatively, compression chamber suction port a is along the sidewall of the through inner cylinder body 82 of radial direction of cylinder 8, and liquid storage cylinder suction port b is along the sidewall of the through outer cylinder body 81 of radial direction of cylinder 8.Preferably, compression chamber suction port a is positioned at liquid storage cylinder suction port b the both sides being connected cylinder body 83 in the circumferential.Thus, gas-liquid mixture circulation path in liquid storage cylinder Q can be extended, improve gas-liquid separation effect.
Particularly, the axial cross section of outer cylinder body 81 can be circle, and namely outer cylinder body 81 is formed as circular cylinder body, and the axial cross section of inner cylinder body 82 also can be circle, and namely inner cylinder body 82 is also formed as circular cylinder body.Liquid storage cylinder Q is formed as the C shape chamber around inner cylinder body 82 circumference.
Conveniently cylinder body and inner cylinder body 82, outer cylinder body 81 and the production and processing being connected cylinder body 83, enhance productivity, and ensures the intensity of cylinder body, preferably, inner cylinder body 82, outer cylinder body 81 be connected cylinder body 83 and can be integrally formed.
As shown in Figure 2, connect on cylinder body 83 and be formed with vane slot 85, one end of vane slot 85 communicates with compression chamber P.Slide plate 12 is located in vane slot 85 diametrically slidably, and one end of slide plate 12 to extend in compression chamber P and is only against on piston 11.
In certain embodiments, as shown in Figure 3, groove Q2 is provided with in supplementary bearing 9 to be configured to liquid storage cylinder Q at least partially.Wherein, groove Q2 can be located on the end face of connection cylinder 8 of supplementary bearing 9, and groove Q2 also can be located on the end face away from cylinder 8 of supplementary bearing 9, does not do concrete restriction here.
In a specific embodiment, as shown in Figure 3, supplementary bearing 9 comprises: annular flange 91, axle journal 92 and peripheral board 93.With the compression chamber P on closed cylinder 8 on the end face that flange 91 is located at cylinder 8, axle journal 92 is from the inner circumference edge of flange 91 along extending towards the direction away from cylinder 8, and bent axle 6 is engaged in axle journal 92.Peripheral board 93 extends from the outer periphery edge of flange 91 towards the direction away from cylinder 8, peripheral board 93, axle journal 92 and flange 91 limit groove Q2, that is, the groove Q2 that opens wide towards the side away from cylinder 8 is provided with in supplementary bearing 9 to be configured to liquid storage cylinder Q at least partially.Rotary compressor 100 also comprises: end plate 15, and end plate 15 is fastened on peripheral board 93 and axle journal 92 with closed pockets Q2.Thus, greatly can increase the capacity of liquid storage cylinder Q, improve gas-liquid separation ability and the liquid storage capacity of liquid storage cylinder Q.
In the specific embodiment shown in Fig. 3, cylinder 8 is provided with the circulation passage Q1 of up/down perforation, supplementary bearing 9 is provided with the groove Q2 opened wide downwards, and the flange 91 of supplementary bearing 9 is also provided with the through hole Q3 of axially through flange 91, circulation passage Q1 is communicated with to form liquid storage cylinder Q with groove Q2 by through hole Q3.Wherein, the upper end of circulation passage Q1 is closed by main bearing 7, and the lower end of groove Q2 is closed by end plate 15.
Here, oil suction structure 14 can have various structures form, and such as, oil suction structure 14 can comprise fuel sucking pipe 141, and oil suction structure 14 can comprise suction strand etc., as long as cooling machine oil can be sucked into compression chamber P.
In certain embodiments, as shown in Fig. 1, Fig. 4-Fig. 7, oil suction structure 14 comprises fuel sucking pipe 141, and the first end of fuel sucking pipe 141 is communicated with compression chamber suction port a, and the second end of fuel sucking pipe 141 extends in liquid storage cylinder Q.Use fuel sucking pipe 141, structure is simple, easy to manufacture, and oil absorbing effect is good.
Here, because compression chamber suction port a place air pressure is lower, the active force of suction can be produced to fuel sucking pipe 141, therefore the first end of fuel sucking pipe 141 is connected to compression chamber suction port a and can be convenient to refrigerator oil with in gaseous coolant suction compression chamber P.
Particularly, fuel sucking pipe 141 can be metal tube, and fuel sucking pipe 141 also can be nonmetallic pipe.
When selecting the material of fuel sucking pipe 141, the material that preferred specific heat capacity is large, thermal conductivity is little.This is because the material temperature of this character can be more lower slightly than the temperature of around other materials, fuel sucking pipe 141 surrounding can form the relatively low region of a temperature.When temperature distributing disproportionation is even in liquid storage cylinder Q, refrigerator oil can be caused to move to low temperature area, namely refrigerator oil easily moves enrichment to fuel sucking pipe 141 surrounding, is convenient to fuel sucking pipe 141 upwards oil suction.
In certain embodiments, as shown in Figure 4, fuel sucking pipe 141 is porous material pipe, and the tube wall of porous material has more hole.
It should be noted that, from suction pipe 16 suck gas-liquid mixture when flowing through liquid storage cylinder Q, a part of refrigerant can flow through porous material pipe, when refrigerant flows into the hole on tube wall, can be larger due to the voids of porous material, thermal conductivity is little, causes porous material pipe own temperature to reduce.And easily move enrichment to low temperature area due to refrigerator oil, therefore porous material pipe is easier inhales refrigerator oil to compression chamber P.
Meanwhile, when the liquid level height of refrigerator oil changes in liquid storage cylinder Q, the tube wall due to fuel sucking pipe 141 different heights all has hole, refrigerator oil can be drawn in compression chamber P continuously.
Because the porosity ratio of foamed aluminium is higher, and foamed aluminium has, and density is little, absorbability are high, impact capacity is strong, high temperature resistant, anticorrosive, thermal conductivity is little (such as when foam aluminum pore rate is 80% to 90%, its thermal conductivity is 0.3-1W/m, be equivalent to marble) etc. characteristic, therefore fuel sucking pipe 141 preferred foams aluminum pipe.In addition, foamed aluminium also has filter capacity, and easily processing is easily installed, and formed precision is also higher.
Certainly, fuel sucking pipe 141 structure is not limited thereto, and such as, because the porosity ratio of porous ceramics is about 80% ~ 90%, and this material thermal conductivity is also less, and fuel sucking pipe 141 also can be porous ceramic pipe, and namely porous material is porous ceramics.
Advantageously, the second end end face of fuel sucking pipe 141 and the spacing of liquid storage cylinder Q diapire are 1-2mm.In the example of hgure 5, the layering because density is different of liquid refrigerants and refrigerator oil, in the liquid of layering in liquid storage cylinder Q, upper strata is liquid refrigerants layer M2, lower floor is refrigerating machine oil reservoir M1, second end end face of fuel sucking pipe 141 and the spacing of liquid storage cylinder Q diapire are set to 1-2mm, the second end of fuel sucking pipe 141 is immersed in refrigerating machine oil reservoir M1 as far as possible, and fuel sucking pipe 141 end face distance liquid storage cylinder Q diapire can be avoided excessively closely to cause blocking.
Referring to the different specific embodiments shown in Fig. 1, Fig. 5-Fig. 7, describe the oil suction structure 14 according to the utility model embodiment in detail.It should be noted that, in different embodiment, label identical from start to finish represents identical element or has the element of identical function.
Embodiment one
In this embodiment, the first end of fuel sucking pipe 141 is fixed on the perisporium of compression chamber suction port a, and the second end of fuel sucking pipe 141 extends to bottom liquid storage cylinder Q along the inner circle wall of liquid storage cylinder Q, and namely fuel sucking pipe 141 is fixed on the inner circle wall of liquid storage cylinder Q.
Embodiment two
In this embodiment, the perisporium of compression chamber suction port a is provided with the first attachment hole 84 being communicated with liquid storage cylinder Q, and the first end of fuel sucking pipe 141 is fixed in the first attachment hole 84, and the second end of fuel sucking pipe 141 stretches out and extend into bottom liquid storage cylinder Q in cylinder 8.That is, one end of fuel sucking pipe 141 is located in the inwall of cylinder 8, and the other end stretches out rear directly extending in liquid storage cylinder Q in the inwall of cylinder 8.
Embodiment three
In this embodiment, as shown in Figure 1, the perisporium of compression chamber suction port a is provided with the first attachment hole 84, and supplementary bearing 9 is provided with the second attachment hole 94 being communicated with the first attachment hole 84 and liquid storage cylinder Q respectively, and the first end of fuel sucking pipe 141 extend in the second attachment hole 94.
Particularly, the first attachment hole 84 and/or the second attachment hole 94 be configured to pore 841 at least partially, the aperture of pore 841 is 0.1-2mm, and pore 841 is between compression chamber suction port a and the first end of fuel sucking pipe 141.
It should be noted that, capillary energy makes the liquid of its tube wall wetting naturally rise.And less pore 841 part of the first attachment hole 84 mesoporous is equivalent to capillary tube, under the pumping action and capillarity of cylinder 8, the refrigerator oil entered in oil suction structure 14 can upwards move, thus enters into compression chamber P.
Advantageously, the internal diameter of fuel sucking pipe 141 is equal with the aperture of pore 841, and like this, fuel sucking pipe 141 is also configured to capillary tube, is beneficial to refrigerator oil and automatically flows towards compression chamber suction port a along fuel sucking pipe 141.
In embodiment three, as shown in Figure 1, the first attachment hole 84 and the second attachment hole 94 extend respectively vertically, thus convenient processing.First attachment hole 84 and the second attachment hole 94 are respectively circular port, and fuel sucking pipe 141 is circular pipe.
Embodiment four
In this embodiment, as shown in Figure 5, oil suction structure 14 and the corresponding mounting structure of this embodiment are substantially identical with embodiment three, do not repeat here.
Difference is, in embodiment four, the first end of fuel sucking pipe 141 is fixed in the first attachment hole 84.And in embodiment four, as shown in Figure 5, a part for the first attachment hole 84 is configured to pore 841.
Embodiment five
In this embodiment, as shown in Figure 6, oil suction structure 14 and the corresponding mounting structure of embodiment five are substantially identical with embodiment four, do not repeat here.
Difference is, in embodiment five, the diapire of liquid storage cylinder Q is provided with the shrinkage pool 151 of corresponding fuel sucking pipe 141, and the second end of fuel sucking pipe 141 stretches in shrinkage pool 151, thus refrigerator oil is gathered near the second end of fuel sucking pipe 141, facilitates oil suction.
Embodiment six
In this embodiment, as shown in Figure 7, oil suction structure 14 and the corresponding mounting structure of embodiment six are substantially identical with embodiment three, do not repeat here.
Difference is, in embodiment six, the end face of the connection cylinder 8 of supplementary bearing 9 is provided with the draw-in groove 95 be connected with the second attachment hole 94, and the first end periphery wall of fuel sucking pipe 141 is provided with the fixture block 142 coordinated with draw-in groove 95, and fixture block 142 is clamped by cylinder 8.Like this, fuel sucking pipe 141 is stuck in draw-in groove 95 internal fixtion by fixture block 142, and means of fixation is simple, and it is firm to connect, and can prevent fuel sucking pipe 141 from coming off in the second attachment hole 94.
In the example in figure 7, fixture block 142 is annular, and corresponding draw-in groove 95 is also annular, and namely draw-in groove 95 and the second attachment hole 94 form step hole.
According to the rotary compressor 100 of the utility model embodiment, by arranging oil suction structure 14 in built-in liquid storage cylinder Q, liquid storage cylinder Q has the function of traditional external liquid-storage container storing liquid cooling liquid, make compressor without the need to arranging external liquid-storage container, improve the loop structure of cooling machine oil simultaneously, and simple and reasonable for structure.
In the description of this specification, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present utility model or example.In this manual, identical embodiment or example are not necessarily referred to the schematic representation of above-mentioned term.And the specific features of description, structure, material or feature can combine in an appropriate manner in any one or more embodiment or example.
Although illustrate and described embodiment of the present utility model, those having ordinary skill in the art will appreciate that: can carry out multiple change, amendment, replacement and modification to these embodiments when not departing from principle of the present utility model and aim, scope of the present utility model is by claim and equivalents thereof.
Claims (14)
1. a rotary compressor, is characterized in that, comprising:
Cylinder, is provided with compression chamber in described cylinder, and the inner circle wall of described compression chamber is provided with compression chamber suction port;
Supplementary bearing, described supplementary bearing is located on the end face of described cylinder, be provided with liquid storage cylinder isolated with described compression chamber in described supplementary bearing and/or described cylinder, described liquid storage cylinder has liquid storage cylinder suction port, and described liquid storage cylinder is communicated with described compression chamber by described compression chamber suction port;
Oil suction structure, the first end of described oil suction structure is connected to described compression chamber suction port, and the second end of described oil suction structure extends in described liquid storage cylinder to be drawn onto in described compression chamber suction port by the refrigerator oil in described liquid storage cylinder.
2. rotary compressor according to claim 1, is characterized in that, is provided with the circulation passage that is radially spaced with described compression chamber to be configured to described liquid storage cylinder at least partially in described cylinder.
3. rotary compressor according to claim 2, is characterized in that, described cylinder comprises:
Outer cylinder body, described liquid storage cylinder suction port is located on the sidewall of described outer cylinder body;
Inner cylinder body, described inner cylinder body is located at the inner side of described outer cylinder body, a described inner cylinder body part is circumferentially connected cylinder body with being provided with between described outer cylinder body, described inner cylinder body has through center hole to form described compression chamber, described outer cylinder body, limit described circulation passage between described inner cylinder body and described connection cylinder body, described compression chamber suction port is located on the sidewall of described inner cylinder body.
4. the rotary compressor according to any one of claim 1-3, is characterized in that, is provided with groove to be configured to described liquid storage cylinder at least partially in described supplementary bearing.
5. rotary compressor according to claim 4, is characterized in that, described supplementary bearing comprises:
The flange of annular, described flange is located on the end face of described cylinder;
Axle journal, described axle journal extends from the inner circumference edge edge of described flange towards the direction away from described cylinder;
Peripheral board, described peripheral board extends from the outer periphery edge of described flange towards the direction away from described cylinder, and described peripheral board, described axle journal and described flange limit described groove;
Described rotary compressor also comprises end plate, and described end plate buckle is combined on described peripheral board and described axle journal to close described groove.
6. rotary compressor according to claim 1, is characterized in that, described oil suction structure comprises fuel sucking pipe, and the first end of described fuel sucking pipe is communicated with described compression chamber suction port, and the second end of described fuel sucking pipe extends in described liquid storage cylinder.
7. rotary compressor according to claim 6, is characterized in that, the perisporium of described compression chamber suction port is provided with the first attachment hole being communicated with described liquid storage cylinder, and the described first end of described fuel sucking pipe is fixed in described first attachment hole.
8. rotary compressor according to claim 6, it is characterized in that, the perisporium of described compression chamber suction port is provided with the first attachment hole, described supplementary bearing is provided with the second attachment hole being communicated with described first attachment hole and described liquid storage cylinder respectively, and the described first end of described fuel sucking pipe extend in described second attachment hole.
9. the rotary compressor according to claim 7 or 8, it is characterized in that, described first attachment hole be configured to pore at least partially, the aperture of described pore is 0.1-2mm, and described pore is between described compression chamber suction port and the first end of described fuel sucking pipe.
10. rotary compressor according to claim 8, it is characterized in that, the end face of the described cylinder of connection of described supplementary bearing is provided with the draw-in groove be connected with described second attachment hole, and the first end periphery wall of described fuel sucking pipe is provided with the fixture block coordinated with described draw-in groove.
11. rotary compressors according to claim 6, is characterized in that, described fuel sucking pipe is porous material pipe.
12. rotary compressors according to claim 11, is characterized in that, described fuel sucking pipe is foam aluminum tube or porous ceramic pipe.
13. rotary compressors according to claim 6, is characterized in that, the second end end face of described fuel sucking pipe and the spacing of described liquid storage cylinder diapire are 1-2mm.
14. rotary compressors according to claim 9, is characterized in that, the internal diameter of described fuel sucking pipe is equal with the aperture of described pore.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520529098.XU CN204961297U (en) | 2015-07-20 | 2015-07-20 | Rotary compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520529098.XU CN204961297U (en) | 2015-07-20 | 2015-07-20 | Rotary compressor |
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| Publication Number | Publication Date |
|---|---|
| CN204961297U true CN204961297U (en) | 2016-01-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520529098.XU Withdrawn - After Issue CN204961297U (en) | 2015-07-20 | 2015-07-20 | Rotary compressor |
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| Country | Link |
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| CN (1) | CN204961297U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105090026A (en) * | 2015-07-20 | 2015-11-25 | 广东美芝制冷设备有限公司 | Rotary compressor |
| CN108826768A (en) * | 2018-07-23 | 2018-11-16 | 珠海格力节能环保制冷技术研究中心有限公司 | Fluid machinery and heat exchange equipment with same |
-
2015
- 2015-07-20 CN CN201520529098.XU patent/CN204961297U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105090026A (en) * | 2015-07-20 | 2015-11-25 | 广东美芝制冷设备有限公司 | Rotary compressor |
| CN105090026B (en) * | 2015-07-20 | 2017-10-24 | 广东美芝制冷设备有限公司 | Rotary compressor |
| CN108826768A (en) * | 2018-07-23 | 2018-11-16 | 珠海格力节能环保制冷技术研究中心有限公司 | Fluid machinery and heat exchange equipment with same |
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| C14 | Grant of patent or utility model | ||
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| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160113 Effective date of abandoning: 20171024 |