CN203614415U - Rotary compressor and freezing circulating device with same - Google Patents
Rotary compressor and freezing circulating device with same Download PDFInfo
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- CN203614415U CN203614415U CN201320524808.0U CN201320524808U CN203614415U CN 203614415 U CN203614415 U CN 203614415U CN 201320524808 U CN201320524808 U CN 201320524808U CN 203614415 U CN203614415 U CN 203614415U
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- balance pocket
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Abstract
The utility model discloses a rotary compressor and a freezing circulating device with the same. The rotary compressor comprises a casing, a compressing mechanism and a balance block, wherein the compressing mechanism is arranged in the casing and comprises an air cylinder, a main bearing, a supplementary bearing, a baffle plate and a crankshaft, wherein the main bearing is arranged above the air cylinder while the baffle plate is arranged below the air cylinder, so that a compressing cavity is formed among the main bearing, the air cylinder and the baffle plate; the supplementary bearing is arranged below the baffle plate, so that a balance cavity is formed between the supplementary bearing and the baffle plate; the crankshaft is provided with an eccentric part, and a lubricating oil groove is formed in the peripheral surface of the eccentric part and is spaced from the bottom surface of the eccentric part; a balance block is arranged on the crankshaft and positioned in the balance cavity, and the minimum radial distance between the balance block and the balance cavity is 0.2mm. As the rotary compressor is used, the phenomenon of oil accumulation in the balance cavity is effectively alleviated, and meanwhile, the balance block is prevented from carrying out secondary compression on coolants in the balance cavity.
Description
Technical field
The utility model relates to compressor field, especially relates to a kind of rotary compressor and has the freezing cycle device of this rotary compressor.
Background technique
Traditional single cylinder rotary compressor is owing to having eccentric part, therefore in bent axle rotation process, eccentric part and the piston that is set in eccentric part outside have larger centrifugal force in the time rotating, while is due to the effect that perturbs of the bent axle in running up, thereby can aggravate abrasion and the vibration of bent axle, cause compressor effect to reduce.At present, a solution is to adopt jack shaft equilibrium block scheme, on bent axle, increase an equilibrium block for balance eccentric part and piston, this equilibrium block is located in a counter balance pocket between eccentric part and bent axle countershaft section (being positioned at the below of eccentric part), thereby has improved abrasion and vibration problem that the centrifugal force of compressor eccentric weight brings.
But, below counter balance pocket is positioned at, therefore the lubricant oil that the oil groove from eccentric part outer circumferential face flows out can flow in counter balance pocket, thereby worsen the starting torque of compressor, counter balance pocket trapped fuel too much also can cause all the other moving elements of compressing mechanism to can not get sufficient lubrication simultaneously, thus the wearing and tearing of aggravation compressing mechanism.And there is the phenomenon to the gas secondary compression in counter balance pocket in equilibrium block of the prior art, causes compressor efficiency low.
Model utility content
The utility model is intended to solve at least to a certain extent one of above-mentioned technical problem of the prior art.
For this reason, an object of the present utility model is to propose a kind of rotary compressor, and this rotary compressor can effectively improve the long-pending oily phenomenon of counter balance pocket, and equilibrium block can not carry out secondary compression to the refrigerant in counter balance pocket simultaneously.
Another object of the present utility model is to propose a kind of freezing cycle device, and this freezing cycle device comprises above-mentioned rotary compressor.
According to rotary compressor of the present utility model, comprising: housing; Compressing mechanism, described compressing mechanism is located in described housing and comprises: cylinder; Main bearing, described main bearing be located at described cylinder above; Dividing plate, described dividing plate is located at below described cylinder to limit compression chamber between described main bearing, described cylinder and described dividing plate; Supplementary bearing, described supplementary bearing is located at below described dividing plate to limit counter balance pocket between described supplementary bearing and described dividing plate; Bent axle, described bent axle runs through described main bearing, described dividing plate and described supplementary bearing, and described bent axle has eccentric part, and described eccentric part is positioned at described compression chamber, on the outer circumferential face of described eccentric part, be formed with oil groove, the bottom surface of described oil groove and described eccentric part is spaced apart; Equilibrium block, described equilibrium block is located on described bent axle and is positioned at described counter balance pocket, and in the footpath of described counter balance pocket, distance is upwards △ L to the inner peripheral surface of described equilibrium block and described counter balance pocket, and wherein △ L meets relation: △ L >=0.2mm.
Be not communicated with the bottom surface of eccentric part by the oil groove on eccentric part outer circumferential face is designed to according to rotary compressor of the present utility model, thereby can guarantee to be difficult to flow to counter balance pocket below for the lubricant oil of lubricated eccentric part and piston, avoid the interior trapped fuel of counter balance pocket too much to affect the lubrication effect of miscellaneous part, thereby improve the starting torque of compressor, be conducive to start the maintenance of moment pasta.And equilibrium block and counter balance pocket are spaced apart diametrically, and minimum clearance is more than 2mm, can avoid like this equilibrium block to carry out secondary compression to the refrigerant entering in counter balance pocket, guarantees that compressor has good efficiency.
In addition, can also there is following additional technical feature according to rotary compressor of the present utility model:
According to embodiments more of the present utility model, on described dividing plate, be formed with separator channels, in described cylinder, be formed with cylinder channel, on described main bearing, be formed with main bearing passage, described separator channels, described cylinder channel and described main bearing passage communicate with each other to form exhaust passage, and one end of described exhaust passage is communicated with described enclosure interior and the other end is communicated with described counter balance pocket.
According to embodiments more of the present utility model, on described supplementary bearing, be provided with undercut groove, the described the other end of described exhaust passage is communicated with described counter balance pocket by described undercut groove.
According to embodiments more of the present utility model, described undercut groove comprises the first undercut groove and the second undercut groove that communicate with each other, and the described the other end of described exhaust passage is communicated with described counter balance pocket by described the second undercut groove and described the first undercut groove successively.
According to embodiments more of the present utility model, the area of contour of the orthographic projection of described the second undercut groove in the plane of central axis that is orthogonal to described bent axle is S2, the area of contour of the orthographic projection of described the first undercut groove in described plane is S1, and wherein S1 and S2 meet relation: S1 > S2.
Thus, adopt this design, can promote that the refrigerant in counter balance pocket is drained in exhaust passage, improve refrigerant flow efficiency.
According to embodiments more of the present utility model, in described cylinder, be also formed with resonant chamber, described resonant chamber is communicated with described cylinder channel.
By resonant chamber is set, thereby can improve exhaust sound, exhaust sound is reduced to a certain extent, more steady while making compressor operating, quiet.
According to embodiments more of the present utility model, described exhaust passage is multiple, and described undercut groove is multiple and corresponding one by one with described multiple exhaust passages, and described resonant chamber is multiple and corresponding one by one with the cylinder channel of described multiple exhaust passages.
Like this, can effectively improve exhaust resistance, improve exhaust efficiency, make exhaust process more smooth and easy.
According to embodiments more of the present utility model, described exhaust passage is two and central axis radial symmetric about described bent axle.
According to embodiments more of the present utility model, described equilibrium block, described eccentric part and described bent axle are one-body molded.
According to embodiments more of the present utility model, the upper surface of described main bearing is upwards run through to be directly communicated with described enclosure interior in described one end of described exhaust passage.
According to embodiments more of the present utility model, described main bearing is run through to be directly communicated with described enclosure interior in described one end of described exhaust passage from the side of described main bearing.
According to embodiments more of the present utility model, described rotary compressor also comprises: main baffler, described main baffler is set in the outside of described main bearing, the upper surface of described main bearing is upwards run through to be directly communicated with described main baffler inside in described one end of described exhaust passage, and described main baffler has the main baffler through hole being communicated with described enclosure interior.
According on the other hand of the present utility model, a kind of freezing cycle device has been proposed, this freezing cycle device comprises rotary compressor, condenser, expansion mechanism, vaporizer, described condenser, described expansion mechanism are connected in turn with vaporizer, the relief opening of described compressor is connected with described condenser and the intakeport of described compressor is connected with described vaporizer, and wherein said rotary compressor is the rotary compressor above-mentioned according to the utility model.
Accompanying drawing explanation
Fig. 1 is according to the schematic diagram of an embodiment's of the utility model rotary compressor;
Fig. 2 is the enlarged view that Fig. 1 centre circle shows C portion;
Fig. 3 is according to the schematic diagram of another embodiment's of the utility model rotary compressor;
Fig. 4 is according to the schematic diagram of another embodiment's of the utility model rotary compressor;
Fig. 5 is according to the schematic diagram of an embodiment's of the utility model bent axle;
Fig. 6 is according to the stereogram of an embodiment's of the utility model supplementary bearing;
Fig. 7 is according to the sectional view of an embodiment's of the utility model supplementary bearing;
Fig. 8 is according to the schematic cross-section of an embodiment's of the utility model compressing mechanism;
Fig. 9 is according to the schematic diagram of an embodiment's of the utility model cylinder;
Figure 10 is according to the schematic diagram of an embodiment's of the utility model freezing cycle device.
Reference character:
Rotary compressor 100, condenser 200, expansion mechanism 300, vaporizer 400;
Main bearing 21, main bearing passage 211; Cylinder 22, cylinder channel 221, resonant chamber 222, intakeport 223, relief opening 224; Dividing plate 23, separator channels 231; Supplementary bearing 24, the first undercut groove 241, the second undercut groove 242; Bent axle 25, eccentric part 251, oil groove 252, the bottom surface 253 of eccentric part; Piston 26; Main baffler 27;
Counter balance pocket A, exhaust passage B.
Embodiment
Describe embodiment of the present utility model below in detail, described embodiment's example is shown in the drawings, and wherein same or similar label represents same or similar element or has the element of identical or similar functions from start to finish.Be exemplary below by the embodiment who is 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, orientation or the position relationship of the indications such as term " " center ", " on ", D score, " vertically ", " level ", " top ", " end " " interior ", " outward " be based on orientation shown in the drawings or position relationship; be only the utility model and simplified characterization for convenience of description; rather than the device of indication or hint indication or element must have specific orientation, with specific orientation structure with operate, therefore can not be interpreted as restriction of the present utility model.
In addition, term " first ", " second " be only for describing object, and can not be interpreted as indication or hint relative importance or the implicit quantity that indicates indicated technical characteristics.Thus, one or more these features can be expressed or impliedly be comprised to the feature that is limited with " first ", " second ".In description of the present utility model, the implication of " multiple " is two or more, unless otherwise expressly limited specifically.
In the utility model, unless otherwise clearly defined and limited, the terms such as term " installation ", " being connected ", " connection ", " fixing " should be interpreted broadly, and for example, can be to be fixedly connected with, and can be also to removably connect, or integral; Can be mechanical connection, can be also electrical connection; Can be to be directly connected, also can indirectly 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, can understand as the case may be the concrete meaning of above-mentioned term in the utility model.
In the utility model, unless otherwise clearly defined and limited, First Characteristic Second Characteristic it " on " or D score can comprise that the first and second features directly contact, also can comprise that the first and second features are not directly contacts but by the other feature contact between them.And, First Characteristic Second Characteristic " on ", " top " and " above " comprise First Characteristic directly over Second Characteristic and oblique upper, or only represent that First Characteristic level height is higher than Second Characteristic.First Characteristic Second Characteristic " under ", " below " and " below " comprise First Characteristic under Second Characteristic and tiltedly, or only represent that First Characteristic level height is less than Second Characteristic.
First describe according to the utility model embodiment's rotary compressor 100 with reference to figure 1-Fig. 9 below.
Can comprise housing 1, compressing mechanism and equilibrium block 4 according to an embodiment's of the utility model rotary compressor 100.
According to an embodiment of the present utility model, housing 1 can comprise main casing, upper shell and lower shell body, main casing can be formed as the ring-type that top and bottom are all opened wide, upper shell be located at main casing above, upper shell and main casing can be integrally welded, lower shell body is located at below main casing, lower shell body and main casing can be integrally welded, upper shell, main casing and lower shell body are encircled into an airtight installation cavity, and wherein the main member of rotary compressor 100 is all arranged at this installation cavity inside as compressing mechanism, drive motor etc.But, should be understood that, be not limited to this according to the structure of the utility model embodiment's housing 1.
Compressing mechanism is located in housing 1, and with reference to Fig. 1-Fig. 4, compressing mechanism can comprise main bearing 21, cylinder 22, dividing plate 23, supplementary bearing 24, bent axle 25, piston 26 and slide plate.Wherein, main bearing 21 be located at cylinder 22 above, dividing plate 23 is located at below cylinder 22, supplementary bearing 24 is located at below dividing plate 23, main bearing 21, cylinder 22, dividing plate 23 and supplementary bearing 24 can be by multiple bolton.
Between main bearing 21, cylinder 22 and dividing plate 23, limit compression chamber, compression chamber has intakeport 223 and relief opening 224(as shown in Figure 9).Intakeport 223 and relief opening 224 can lay respectively at the both sides of slide plate, particularly, intakeport 223 can be positioned at the downstream side of slide plate in the sense of rotation of bent axle 25, relief opening 224 can be positioned at the downstream side of intakeport 223 in the sense of rotation of bent axle 25, and the distance of relief opening 224 and slide plate is preferably less than the distance of intakeport 223 and slide plate.Relief opening 224 places can be provided with outlet valve and be used to open or close relief opening 224.
As depicted in figs. 1 and 2, between dividing plate 23 and supplementary bearing 24, limit counter balance pocket A, counter balance pocket A is connected with compression chamber by relief opening 224, and in compression chamber, compressed High Temperature High Pressure refrigerant can be drained in counter balance pocket A by relief opening 224 like this.As shown in Fig. 1, Fig. 3-Fig. 4, counter balance pocket A is positioned at the below of compression chamber.But, should be understood that, the utility model is not limited to this, for example preferably, high pressure gas after piston 26 compressions in compression chamber also can be directly drained into enclosure interior or be drained in main baffler 27 by main bearing 21, finally can be drained in housing from main baffler 27.
As shown in Fig. 1, Fig. 3-Fig. 4, bent axle 25 runs through main bearing 21, dividing plate 23, supplementary bearing 24, and bent axle 25 is supported by main bearing 21 and supplementary bearing 24, and particularly, main bearing 21 can be used for the middle part of supporting crankshaft 25, and supplementary bearing 24 can be used for the bottom of supporting crankshaft 25.The lower end of bent axle 25 can extend in the lubricating oil sump of housing 1 inner bottom part, in bent axle 25, can be formed with center oilhole, the bottom of center oilhole communicates with oil sump, in the oilhole of center, can be provided with oily blade to increase the effect that oils, the lubricant oil that center oilhole sucts can be used for that lubricating spindle holds 21, piston 26 and supplementary bearing 24 etc. are located, wearing and tearing while reducing these component workings, the life-span of improving compressor.
As shown in Fig. 1, Fig. 3-Fig. 5, on bent axle 25, there is eccentric part 251, piston 26 is set on the eccentric part 251 of bent axle 25, and eccentric part 251 and piston 26 are positioned at compression chamber.Piston 26 can be ring, the lower surface of main bearing 21 can be close in the upper-end surface of piston 26, the upper surface of dividing plate 23 can be close in the lower end surface of piston 26, and the outer circumferential face of piston 26 can slide on the inner peripheral surface of cylinder 22, and piston 26 is for compressing the refrigerant entering in compression chamber.
As shown in Figure 5, be formed with oil groove 252 on the outer circumferential face of eccentric part 251, for lubricated eccentric part 251 and piston 26, oil groove 252 is spaced apart with the bottom surface 253 of eccentric part 251, and in other words, oil groove 252 is not communicated with the bottom surface 253 of eccentric part 251.
Thus, the lubricant oil flowing out from oil groove 252 is just difficult to flow to the bottom surface 253 of eccentric part 251, lubricant oil is also just difficult to continue the counter balance pocket A internal flow toward below like this, thereby effectively prevents that the inner trapped fuel of counter balance pocket A from too much causing compressing mechanism remaining part to can not get sufficient lubrication.
As shown in Figure 1, Figure 3 and Figure 4, at the top of compressing mechanism, can be provided with drive motor, drive motor can comprise stator 31 and rotor 32, rotor 32 can be fixed on the internal face of for example main casing of housing 1, rotor 32 is located at the inner side of stator 31 rotationally, thereby rotor 32 is fixed the central axis rotation with dynamic crankshaft 25 flexing axles 25 with the top of bent axle 25.The tenminal block of drive motor can be arranged on the top of drive motor, and tenminal block can be protruding to be suitable for connecting power supply through upper shell.
Owing to being arranged with prejudicially the cause of piston 26 on bent axle 25, therefore perturb phenomenon when improving bent axle 25 high speed rotating, offset equilibrium block 4 can be set carry out balance crankshaft 25 and rotate time, improves the phenomenon that perturbs of bent axle 25.
As Figure 1-Figure 4, equilibrium block 4 is located on bent axle 25 and is positioned at counter balance pocket A, and in the footpath of counter balance pocket A, distance is upwards △ L to the inner peripheral surface of equilibrium block 4 and counter balance pocket A, and wherein △ L meets relation: △ L >=0.2mm(as shown in Figure 2).
Thus, can prevent that equilibrium block 4 from compressing again to the High Temperature High Pressure refrigerant entering in counter balance pocket A, avoid due to equilibrium block 4 again compress the energy consumption that increases rotary compressor 100, thereby guarantee that compressor has higher efficiency.
Preferably, equilibrium block 4, eccentric part 251 and bent axle 25 one machine shapings, for example equilibrium block 4, eccentric part 251 and bent axle 25 one cast moldings, facilitate the overall manufacturing of equilibrium block 4, eccentric part 251 and bent axle 25 like this, is conducive to the reduction of cost.
Be not communicated with the bottom surface 253 of eccentric part 251 by the oil groove on eccentric part 251 outer circumferential faces is designed to according to the utility model embodiment's rotary compressor 100, thereby can guarantee to be difficult to flow to counter balance pocket A below for the lubricant oil of lubricated eccentric part 251 and piston 26, avoid the interior trapped fuel of counter balance pocket A too much to affect the lubrication effect of miscellaneous part, thereby improve the starting torque of compressor, be conducive to start the maintenance of moment pasta.And equilibrium block 4 is spaced apart diametrically with counter balance pocket A, and minimum clearance is more than 2mm, can avoid like this equilibrium block 4 to carry out secondary compression to the refrigerant entering in counter balance pocket A, guarantees that compressor has good efficiency.
Shown in Fig. 1, Fig. 3 and Fig. 4, according to an embodiment of the present utility model, on dividing plate 23, be formed with separator channels 231, in cylinder 22, be formed with cylinder channel 221, on main bearing 21, be formed with main bearing passage 211, thus wherein separator channels 231, cylinder channel 221 and main bearing passage 211 communicate with each other form exhaust passage B.
Because between compression chamber and counter balance pocket A being impossible positive confinement, therefore the high pressure gas in compression chamber may be by gap between cylinder 22 and dividing plate 23 etc. in leaking into counter balance pocket A, if the gas in counter balance pocket A (refrigerant) can not be got rid of in time, can increase the pressure of counter balance pocket A inside, thereby hindering equilibrium block 4 moves, secondary compression phenomenon may occur, therefore the gas in counter balance pocket A needs to get rid of in time simultaneously.Thus, in the time that exhaust enters in housing by main bearing 21, this exhaust passage B can be only for being drained into enclosure interior by the gas leaking in counter balance pocket A.
But the utility model is not limited to this, in other embodiments of the present utility model, exhaust also can directly be drained in counter balance pocket A, is finally drained into enclosure interior from counter balance pocket A.Now the refrigerant in counter balance pocket comprises the gas of exhaust and leakage.
For example upper end, one end of exhaust passage B is communicated with housing 1 inside, here, it should be noted that, one end of exhaust passage B and housing 1 internal communication should be made broad understanding, for example, can be direct connection, can certainly be by intermediary indirect communication.For example lower end of the other end of exhaust passage B is communicated with counter balance pocket A, equally, the other end of exhaust passage B can be to be also directly communicated with counter balance pocket A, it can certainly be indirect communication, wherein leak into the gas in counter balance pocket A or leak into the gas of counter balance pocket A and enter counter balance pocket A with the refrigerant after piston 26 compressions from compression chamber, be drained into housing 1 inside by exhaust passage B, finally this part refrigerant can be by also discharging compressor from the outlet pipe at housing 1 top after cooling drive motor.
Further, as shown in Fig. 1, Fig. 3-Fig. 4, Fig. 6-Fig. 8, on supplementary bearing 24, be provided with for example the first undercut groove 241 of undercut groove and the second undercut groove 242, the described the other end of exhaust passage B is communicated with counter balance pocket A by this undercut groove, in other words, in this further embodiment, exhaust passage B is not directly communicated with counter balance pocket A, but by undercut groove indirect communication.
Shown in Fig. 6-Fig. 8, undercut groove can comprise the first undercut groove 241 and the second undercut groove 242 that communicate with each other, the described the other end of exhaust passage B is communicated with counter balance pocket A by the second undercut groove 242 and the first undercut groove 241 successively, in other words, the described the other end of exhaust passage B is directly connected with the second undercut groove 242, and counter balance pocket A is directly connected with the first undercut groove 241.
Further, the area of contour of the orthographic projection of the second undercut groove 242 in the plane of central axis that is orthogonal to bent axle 25 is S2, the area of contour of the orthographic projection of the first undercut groove 241 in the plane of central axis that is orthogonal to bent axle 25 is S1, and wherein S1 and S2 meet relation: S1 > S2(as shown in Figure 8).Thus, adopt this design, can promote that the refrigerant in counter balance pocket A is drained in the B of exhaust passage, improve refrigerant flow efficiency.
According to embodiments more of the present utility model, as shown in Figure 9, in cylinder 22, be also formed with resonant chamber 222, resonant chamber 222 is communicated with cylinder channel 221, by resonant chamber 222 is set, thereby can improve the noise that refrigerant is discharged, exhaust sound is reduced to a certain extent, more steady while making compressor operating, quiet.
The resistance of discharging in order to reduce refrigerant, further improves coolant discharging effect.Preferably, exhaust passage B is multiple, and undercut groove is multiple and corresponding one by one with multiple exhaust passage B, and resonant chamber 222 is also multiple and is communicated with correspondingly with the cylinder channel 221 of multiple exhaust passage B simultaneously.Like this, can effectively improve refrigerant and discharge resistance, improve exhaust efficiency, make exhaust process more smooth and easy.
For example, in the example of Fig. 6-Fig. 9, exhaust passage B is two and preferably distributes about the central axis radial symmetric of bent axle 25.In this embodiment, resonant chamber 222 is also two and is communicated with two cylinder channels 221 respectively.Meanwhile, undercut groove is also two, and each exhaust passage B is communicated with counter balance pocket A by a undercut groove respectively.
According to embodiments more of the present utility model, as shown in Figure 1, the upper surface that main bearing 21 is run through in described one end of exhaust passage B is to be directly communicated with housing 1 inside, in other words, in this embodiment, the outlet of exhaust passage B is formed directly on the upper surface of main bearing 21.Thus, easy to exhaust channel B is the processing of main bearing passage 211 particularly, and simplified processing process reduces costs.
Certainly, the utility model is not limited to this, in other embodiments of the present utility model, as shown in Figure 3, main bearing 21 is run through to be directly communicated with housing 1 inside in one end of exhaust passage B from the side of main bearing 21, in other words, in this embodiment, the outlet of exhaust passage B is formed directly on the outer circumferential face of main bearing 21.Particularly, as shown in Figure 3, main bearing passage 211 is roughly L shaped, and its vertical section is communicated with cylinder channel 221, vertically section direct and housing 1 internal communication of its horizontal segment.Thus, can effectively prevent the main bearing 21 lubricant oil exhaust passage B that flows through, particularly, in the time of compressor shutdown, can prevent that lubricant oil from entering in counter balance pocket A by exhaust passage B is reverse.
According to some embodiments more of the present utility model, as shown in Figure 4, rotary compressor 100 also comprises main baffler 27, and main baffler 27 is set in the outside of main bearing 21, for improving the operating noise of rotary compressor 100.In this embodiment, the upper surface of main bearing 21 is upwards run through to be directly communicated with main baffler 27 inside in described one end of exhaust passage B, main baffler 27 has the main baffler through hole with housing 1 internal communication, exhaust in main like this baffler 27 can be drained in housing 1 by this through hole, in other words, in this embodiment, exhaust passage B is by main baffler 27 and the inner indirect communication of housing 1, refrigerant is first drained in main baffler 27, and then being drained into housing 1 inside from main baffler 27, main baffler 27 can reduce exhaust sound well.
Simply describe according to the utility model embodiment's freezing cycle device below with reference to Figure 10.
Can comprise rotary compressor 100, condenser 200, expansion mechanism 300, vaporizer 400 according to an embodiment's of the utility model freezing cycle device, wherein condenser 200, expansion mechanism 300 are connected in turn with vaporizer 400, and the relief opening (different from the relief opening of compressing mechanism) of compressor is connected with condenser 200 and the intakeport of compressor is connected with vaporizer 400.Like this, High Temperature High Pressure refrigerant after compressor compresses escapes and enter and condenser 200, carries out condensation heat exchange from the relief opening of compressor, then gas enters expansion mechanism 300 and carries out reducing pressure by regulating flow processing, thereby flow into again afterwards and in vaporizer 400, carry out evaporation endothermic and become low-temp low-pressure refrigerant, this part low-temp low-pressure refrigerant is finally again back in the compression chamber of compressor and compresses, and so far completes refrigeration cycle one time.
In the description of this specification, the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means to be contained at least one embodiment of the present utility model or example in conjunction with specific features, structure, material or the feature of this embodiment or example description.In this manual, to the schematic statement of above-mentioned term not must for be identical embodiment or example.And specific features, structure, material or the feature of description can be with suitable mode combination in any one or more embodiments or example.In addition, those skilled in the art can engage the different embodiments that describe in this specification or example and combine.
Although illustrated and described embodiment of the present utility model above, be understandable that, above-described embodiment is exemplary, can not be interpreted as restriction of the present utility model, those of ordinary skill in the art can change above-described embodiment in scope of the present utility model, modification, replacement and modification.
Claims (13)
1. a rotary compressor, is characterized in that, comprising:
Housing;
Compressing mechanism, described compressing mechanism is located in described housing and comprises:
Cylinder;
Main bearing, described main bearing be located at described cylinder above;
Dividing plate, described dividing plate is located at below described cylinder to limit compression chamber between described main bearing, described cylinder and described dividing plate;
Supplementary bearing, described supplementary bearing is located at below described dividing plate to limit counter balance pocket between described supplementary bearing and described dividing plate;
Bent axle, described bent axle runs through described main bearing, described dividing plate and described supplementary bearing, and described bent axle has eccentric part, and described eccentric part is positioned at described compression chamber, on the outer circumferential face of described eccentric part, be formed with oil groove, the bottom surface of described oil groove and described eccentric part is spaced apart;
Equilibrium block, described equilibrium block is located on described bent axle and is positioned at described counter balance pocket, and in the footpath of described counter balance pocket, distance is upwards △ L to the inner peripheral surface of described equilibrium block and described counter balance pocket, and wherein △ L meets relation: △ L >=0.2mm.
2. rotary compressor according to claim 1, it is characterized in that, on described dividing plate, be formed with separator channels, in described cylinder, be formed with cylinder channel, on described main bearing, be formed with main bearing passage, described separator channels, described cylinder channel and described main bearing passage communicate with each other to form exhaust passage, and one end of described exhaust passage is communicated with described enclosure interior and the other end is communicated with described counter balance pocket.
3. rotary compressor according to claim 2, is characterized in that, on described supplementary bearing, is provided with undercut groove, and the described the other end of described exhaust passage is communicated with described counter balance pocket by described undercut groove.
4. rotary compressor according to claim 3, it is characterized in that, described undercut groove comprises the first undercut groove and the second undercut groove that communicate with each other, and the described the other end of described exhaust passage is communicated with described counter balance pocket by described the second undercut groove and described the first undercut groove successively.
5. rotary compressor according to claim 4, it is characterized in that, the area of contour of the orthographic projection of described the second undercut groove in the plane of central axis that is orthogonal to described bent axle is S2, the area of contour of the orthographic projection of described the first undercut groove in described plane is S1, and wherein S1 and S2 meet relation: S1 > S2.
6. rotary compressor according to claim 3, is characterized in that, is also formed with resonant chamber in described cylinder, and described resonant chamber is communicated with described cylinder channel.
7. rotary compressor according to claim 6, it is characterized in that, described exhaust passage is multiple, and described undercut groove is multiple and corresponding one by one with described multiple exhaust passages, and described resonant chamber is multiple and corresponding one by one with the cylinder channel of described multiple exhaust passages.
8. rotary compressor according to claim 7, is characterized in that, described exhaust passage is two and central axis radial symmetric about described bent axle.
9. rotary compressor according to claim 1, is characterized in that, described equilibrium block, described eccentric part and described bent axle are one-body molded.
10. according to the rotary compressor described in any one in claim 2-8, it is characterized in that, the upper surface of described main bearing is upwards run through to be directly communicated with described enclosure interior in described one end of described exhaust passage.
11. according to the rotary compressor described in any one in claim 2-8, it is characterized in that, described main bearing is run through to be directly communicated with described enclosure interior in described one end of described exhaust passage from the side of described main bearing.
12. according to the rotary compressor described in any one in claim 2-8, it is characterized in that, also comprise: main baffler, described main baffler is set in the outside of described main bearing, the upper surface of described main bearing is upwards run through to be directly communicated with described main baffler inside in described one end of described exhaust passage, and described main baffler has the main baffler through hole being communicated with described enclosure interior.
13. 1 kinds of freezing cycle devices, it is characterized in that, comprise rotary compressor, condenser, expansion mechanism, vaporizer, described condenser, described expansion mechanism are connected in turn with vaporizer, the relief opening of described compressor is connected with described condenser and the intakeport of described compressor is connected with described vaporizer, and wherein said rotary compressor is according to the rotary compressor described in any one in claim 1-12.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201320524808.0U CN203614415U (en) | 2013-08-26 | 2013-08-26 | Rotary compressor and freezing circulating device with same |
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| CN201320524808.0U CN203614415U (en) | 2013-08-26 | 2013-08-26 | Rotary compressor and freezing circulating device with same |
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| CN203614415U true CN203614415U (en) | 2014-05-28 |
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| CN201320524808.0U Expired - Lifetime CN203614415U (en) | 2013-08-26 | 2013-08-26 | Rotary compressor and freezing circulating device with same |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103438001A (en) * | 2013-08-26 | 2013-12-11 | 广东美芝制冷设备有限公司 | Rotary compressor and refrigeration circulating device provided with rotary compressor |
| CN104564685A (en) * | 2015-01-06 | 2015-04-29 | 广东美芝制冷设备有限公司 | Rotary compressor and refrigerating device provided with same |
| WO2018137163A1 (en) * | 2017-01-24 | 2018-08-02 | 广东美芝制冷设备有限公司 | Compressor and vehicle having same |
| WO2022082958A1 (en) * | 2020-10-21 | 2022-04-28 | 安徽美芝精密制造有限公司 | Compressor and refrigeration apparatus |
-
2013
- 2013-08-26 CN CN201320524808.0U patent/CN203614415U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103438001A (en) * | 2013-08-26 | 2013-12-11 | 广东美芝制冷设备有限公司 | Rotary compressor and refrigeration circulating device provided with rotary compressor |
| CN103438001B (en) * | 2013-08-26 | 2016-02-17 | 广东美芝制冷设备有限公司 | Rotary compressor and there is the freezing cycle device of this rotary compressor |
| CN104564685A (en) * | 2015-01-06 | 2015-04-29 | 广东美芝制冷设备有限公司 | Rotary compressor and refrigerating device provided with same |
| WO2018137163A1 (en) * | 2017-01-24 | 2018-08-02 | 广东美芝制冷设备有限公司 | Compressor and vehicle having same |
| WO2022082958A1 (en) * | 2020-10-21 | 2022-04-28 | 安徽美芝精密制造有限公司 | Compressor and refrigeration apparatus |
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