CN207406486U - Compression assembly and multi-cylinder rotary compressor - Google Patents
Compression assembly and multi-cylinder rotary compressor Download PDFInfo
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- CN207406486U CN207406486U CN201720942235.1U CN201720942235U CN207406486U CN 207406486 U CN207406486 U CN 207406486U CN 201720942235 U CN201720942235 U CN 201720942235U CN 207406486 U CN207406486 U CN 207406486U
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- exhaust passage
- exhaust
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- partition
- compression assembly
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Abstract
The utility model proposes a kind of compression assembly and multi-cylinder rotary compressor, wherein, compression assembly includes：At least one first exhaust passage, opens up from bottom to top vertically, and the entrance of first exhaust passage is connected with circumferential exhaust duct；At least one second exhaust passage, it opens up from bottom to top vertically, the entrance of second exhaust passage is connected with the first silencing cavity, the outlet of first exhaust passage and second exhaust passage is opened in the upper surface of clutch shaft bearing, the gas in gas and the second silencing cavity in circumferential exhaust duct is conducted and discharged via clutch shaft bearing upwards, the sum of area of smallest cross-sectional of all exhaust passages is S, and the discharge capacity of compression assembly meets for V, S and V：V/S≤180mm.By the technical solution of the utility model, the discharge loss of compression assembly can be reduced, so as to promote the Energy Efficiency Ratio of compressor.
Description
Technical field
The utility model is related to compressor field, in particular to a kind of compression assembly and a kind of multi-cylinder rotary pressure
Contracting machine.
Background technology
In correlation technique, promote refrigeration amount efficiency, the compression assembly of rotary compressor while being set using twin-tub,
The discharge capacity of more single cylinder increases with the discharge capacity of single cylinder, in order to reduce the discharge loss of compressor, improves compressor
Energy Efficiency Ratio, the aperture design of cylinder vent is also increasing, but excessive exhaust aperture increases the clearance volume of cylinder,
Cause the refrigerating capacity and Energy Efficiency Ratio that influence compressor, therefore, to solve the above-mentioned problems, the compression of twin-tub rotation-type compressor
Single cylinder in component employs double-exhaust structure design, i.e. four exhaust structure of cylinder design up and down, including respectively in major-minor axis
It holds and is exhausted with opening up exhaust passage in two partition plate exhausts, but there are still following defects：
Discharge capacity must under the premise of, if the area of section of exhaust passage is too small, the flow velocity of corresponding exhaust is excessive, with
Cause causes larger discharge loss, so as to reduce Energy Efficiency Ratio.
Utility model content
At least one in order to solve the above-mentioned technical problem, one of the utility model is designed to provide a kind of compression group
Part.
Another of the utility model is designed to provide a kind of multi-cylinder rotary compressor.
To achieve these goals, the embodiment of the utility model first aspect proposes a kind of compression assembly, including：Edge
The axial direction of rotation bent axle is from top to bottom bonded clutch shaft bearing, cylinder assembly, second bearing and the first noise reduction shell of setting successively
Body, the inner wall of the first sound attenuation and the lower face of second bearing are enclosed the first silencing cavity；Cylinder assembly includes：Vertically
At least two cylinders being arranged side by side and the baffle assembly being arranged between two adjacent cylinders, baffle assembly open up week
To exhaust duct；At least one first exhaust passage, opens up from bottom to top vertically, and the entrance of first exhaust passage is arranged with circumferential
Air drain road connects；At least one second exhaust passage, opens up from bottom to top vertically, and the entrance of second exhaust passage disappears with first
Sound chamber connects, wherein, the outlet of first exhaust passage and second exhaust passage is opened in the upper surface of clutch shaft bearing, circumferential to arrange
The gas in gas and the second silencing cavity in air drain road is conducted and discharged via clutch shaft bearing upwards, all exhaust passages
The sum of area of smallest cross-sectional is S (units：Mm2), the discharge capacity of compression assembly is V (units：Mm3), S and V meets：
In the technical scheme, by the maximum for the ratio for limiting the discharge capacity of compression assembly and the smallest cross-sectional of exhaust passage
Value limits flow velocity during gas discharge, the discharge loss of compression assembly can be reduced, so as to promote the Energy Efficiency Ratio of compressor.
Wherein, the discharge capacity of compression assembly is the discharge gas volume that compressor air-discharging end measures in the unit time, first axle
It is respectively base bearing and supplementary bearing to hold with second bearing, and exhaust passage includes the first exhaust passage and use that are vented from partition plate
In the second exhaust passage being vented from supplementary bearing.
In addition, according to the size of each parts, exhaust passage either cylinder can also when it is square, oval etc.
Shape.
Specifically, since the parts of composition compression assembly are including at least the first axle for being from top to bottom bonded setting successively
It holds, cylinder assembly, second bearing and the first sound attenuation, wherein, cylinder assembly includes be arranged side by side vertically at least two
A cylinder and the baffle assembly being arranged between two adjacent cylinders, and exhaust passage is opened in above-mentioned parts successively
On, in order to which more flexible and changeable design meets exhaust requirements, the row that is opened up in actual design on any one parts
The area of section of gas passage can be different from the area of the exhaust passage opened up on another parts, and smallest cross-sectional can be with
It is arranged on above-mentioned arbitrary parts.
In addition, the compression assembly in above-described embodiment provided by the utility model can also have following supplementary technology spy
Sign：
In the above-mentioned technical solutions, it is preferable that first exhaust passage separates setting respectively with second exhaust passage.
In the technical scheme, first exhaust passage and second exhaust passage are the individual passage for separating and setting, i.e., and the
Do not have intercommunicating pore between one exhaust passage and second exhaust passage, first exhaust passage is served only for discharge and is discharged from baffle assembly
Compressed gas, and second exhaust passage be served only for discharge from second bearing discharge compressed gas, that is, second bearing row
Gas and partition plate are vented without mix, can the maximum losses by mixture for reducing two fluids, promotion cop (refrigerating efficiency).
In any of the above-described technical solution, it is preferable that using the lower face of baffle assembly as divisional plane, second exhaust passage
At least bag first exhaust subchannel and second exhaust subchannel from bottom to up, wherein, second exhaust subchannel leads to first exhaust
Road, which overlaps, to be set, so that the gas in circumferential exhaust duct is directly along second exhaust channel conductance.
In the technical scheme, by the way that by the upper semisection in first exhaust passage and second exhaust passage, (second exhaust is sub
Passage) overlap setting, i.e., second exhaust passage can be only set when setting, and at the middle part of second exhaust passage with circumferentially arranging
Air drain road connection set, setting structure is simpler, thus manufacturing cost compare it is relatively low.
Wherein, the quantity of first exhaust passage can be identical with the quantity of second exhaust passage, i.e., in each second exhaust
Passage is turned on by the region of circumferential exhaust duct or the number of the quantity of first exhaust passage and second exhaust passage
Amount differs, i.e., in specified second exhaust passage by the region conducting of circumferential exhaust duct.
In any of the above-described technical solution, it is preferable that circumferential exhaust duct is also connected at least one second exhaust passage
It sets, while the gas in circumferential exhaust duct is exported via first exhaust passage, is exported via second exhaust passage.
It in the technical scheme, will be circumferential by the way that circumferential exhaust duct is connected at least one second exhaust passage
It while gas in exhaust duct is exported via first exhaust passage, is exported via second exhaust passage, that is, has at least one
Item without second bearing first exhaust passage, and directly by partition plate, upper cylinder, clutch shaft bearing, so as to meet partition plate
On the premise of exhaust and second bearing are vented, on the one hand, can partly reduce the portion of first exhaust passage and second exhaust passage
Point overlap when, second bearing exhaust and partition plate exhaust mixing, on the other hand, it is possible to reduce second bearing, air intake duct and every
The hole bit quantity opened up on plate.
In any of the above-described technical solution, it is preferable that first exhaust passage have respectively with second exhaust passage it is a plurality of, it is a plurality of
First exhaust passage is circumferentially distributed rotating around rotation bent axle with a plurality of second exhaust passage.
In the technical scheme, by the way that first exhaust passage is circumferentially distributed rotating around rotation bent axle with second exhaust passage
It opens up a plurality of, on the one hand, it is simpler along specified axis circumferentially to open up through hole preparation process respectively on bearing, cylinder, partition plate, another
Aspect by opening up a plurality of exhaust passage, adds the area of section of exhaust passage, so as in the constant premise of compressor displacement
Under, effectively control exhaust flow rate.
In any of the above-described technical solution, it is preferable that baffle assembly includes：It is bonded the first of setting from top to bottom vertically
Partition plate and second partition, the lower face of first partition offer the first circumferential slot, and the upper surface of second partition, which corresponds to, opens up second
Circumferential slot, wherein, setting is bonded with second partition by first partition, the first circumferential slot and the second circumferential slot are enclosed circumferential direction
Exhaust duct.
In the technical scheme, by by baffle assembly be arranged to include circumferentially to be bonded from top to bottom the first of setting every
Plate and second partition open up the first circumferential slot in the lower face of first partition, and it is circumferential to start second in the upper surface of second partition
After first partition and second partition assembling, circumferential exhaust duct is enclosed by the first circumferential slot and the second circumferential slot for slot, and one
Aspect is opened up respectively for the gas vent of top fitting cylinder exhaust in first partition, opened up on second partition due under
The gas vent of side's fitting cylinder exhaust, sets more convenient, another aspect, real by the way that gas vent is connected with circumferential exhaust duct
Cylinder is showed while using bearing exhaust, the function being vented using partition plate.
Wherein, first partition and second partition are annular baffle.
In any of the above-described technical solution, it is preferable that multi-cylinder rotary compressor is when the quantity of cylinder is 2, two gas
Cylinder is followed successively by the first cylinder and the second cylinder from top to bottom；First exhaust passage, which includes being corresponding in turn to, is arranged at second partition, the
One partition plate, the first cylinder, the axially extending bore on clutch shaft bearing；Second exhaust passage include be corresponding in turn to be arranged at second bearing,
Second cylinder, second partition, first partition, the first cylinder, the axially extending bore on clutch shaft bearing.
In the technical scheme, by first exhaust passage include be arranged on including be corresponding in turn to be arranged at second partition,
First partition, the first cylinder, the axially extending bore on clutch shaft bearing and second channel include being arranged on second bearing, the second gas
Cylinder, second partition, first partition, the first cylinder, the axially extending bore on clutch shaft bearing, by each axially through being correspondingly arranged,
Realize the preparation of first exhaust passage and second channel.
In any of the above-described technical solution, it is preferable that it is logical that the area of section of second exhaust subchannel is more than first exhaust
The area of section in road；And/or the area of section of first exhaust passage is more than the area of section of first exhaust subchannel.
In the technical scheme, by by the area of section of second exhaust subchannel be more than first exhaust subchannel section
Area；And/or the area of section of first exhaust passage is more than the section in the section face, i.e. lower semisection passage of first exhaust subchannel
Area is set smaller than the area of section of upper semisection passage, even if the amount ratio of the gas refrigerant flowed in upper semisection is in lower half
The amount of the gas refrigerant of flowing is more in section, and gas refrigerant also can swimmingly flow in upper semisection exhaust flow path.
In any of the above-described technical solution, it is preferable that compression assembly further includes：Second sound attenuation, is arranged at first axle
The upper surface held, the inner wall of the second sound attenuation and the upper surface of clutch shaft bearing are enclosed the second silencing cavity, the second noise reduction shell
At least one intercommunicating pore is additionally provided on body, wherein, after entering the second silencing cavity via the gas of clutch shaft bearing discharge, pass through company
Through hole is discharged.
In the technical scheme, by setting the second sound attenuation, erasure effect, on the other hand, second are on the one hand realized
The inner wall of sound attenuation and the upper surface of clutch shaft bearing are enclosed the second silencing cavity, and silencing cavity (is set in the second silencing cavity, partition plate
Be placed in circumferential exhaust duct) and the first silencing cavity can be connected, be provided with and connect anechoic chamber in the second silencing cavity and partition plate
Logical first exhaust passage, the first exhaust passage penetrate through the flange part of first partition, the first cylinder and clutch shaft bearing and are formed,
The second exhaust flow path for connecting the first silencing cavity with the second silencing cavity in partition plate is provided with, second exhaust flow path perforation second
The flange part of bearing, the second cylinder, second partition, first partition, the first cylinder and clutch shaft bearing and formed.
In any of the above-described technical solution, it is preferable that compression assembly further includes：First offset piston is arranged on the first gas
In the cavity of cylinder, the lateral wall of the first offset piston, the madial wall of cavity of the first cylinder, the lower face and first of clutch shaft bearing
The upper surface of partition plate is enclosed the first working chamber；Second offset piston is arranged in the cavity of the second cylinder, and second is eccentric living
The lateral wall of plug, the madial wall of cavity of the second cylinder, the upper surface of the upper surface of second partition and second bearing are enclosed
Second working chamber；Wherein, the first working chamber opens up the first exhaust connected respectively with the second silencing cavity and circumferential exhaust duct
Hole, the second working chamber open up the second row stomata connected respectively with the first silencing cavity and circumferential exhaust duct.
In the technical scheme, by setting the first working chamber and the second working chamber, eccentric live is driven by rotating bent axle
Plug rotation is realized to being compressed into the gas in working chamber, when the pressure of compressed gas reaches designated value, passed through respectively
Gas vent is discharged into the first silencing cavity, the second silencing cavity and circumferential air discharge duct, in the first silencing cavity and the pressure in circumferential air discharge duct
Contracting gas is discharged into the second silencing cavity by second exhaust passage and first exhaust passage, high to discharge high temperature by the second silencing cavity
The refrigerant gas of pressure, to provide power for refrigeration cycle.
The embodiment of the utility model second aspect proposes a kind of multi-cylinder rotary compressor, including：Compressor housing；
Compression assembly as described in any one of the utility model first aspect embodiment is arranged in compression case body；Electric machine assembly, even
Rotation bent axle is connected to, and opposite compression assembly is arranged at the top of compressor housing, electric machine assembly includes being fixed at housing
Interior stator and the rotor that can be rotatably dispose in stator, rotor are set on rotation bent axle, wherein, turned by rotor
It is dynamic, rotation bent axle rotation is driven, compression assembly to be driven to carry out gas compression.
In the technical scheme, by the maximum for the ratio for limiting the discharge capacity of compression assembly and the smallest cross-sectional of exhaust passage
Value limits flow velocity during gas discharge, the discharge loss of compression assembly can be reduced, so as to promote the Energy Efficiency Ratio of compressor.
The additional aspect and advantage of the utility model will become apparent or new by this practicality in following description section
The practice of type is recognized.
Description of the drawings
The above-mentioned and/or additional aspect and advantage of the utility model will in the description from combination accompanying drawings below to embodiment
Become apparent and be readily appreciated that, wherein：
Fig. 1 shows the structure diagram of the compression assembly of one embodiment according to the present utility model；
Fig. 2 shows that the curve between the rotating speed and refrigerating efficiency of the compression assembly of embodiment according to the present utility model shows
It is intended to；
Fig. 3 shows the structure diagram of the compression assembly of another embodiment according to the present utility model；
Fig. 4 shows the structure diagram of the compression assembly of another embodiment according to the present utility model；
Fig. 5 shows the structure diagram of the compression assembly of another embodiment according to the present utility model；
Fig. 6 shows the structure diagram of the compression assembly of another embodiment according to the present utility model.
Wherein, correspondences of the Fig. 1 into Fig. 6 between reference numeral and component names is：
102 rotation bent axles, 104 clutch shaft bearings, 106 first cylinders, 108 first partitions, 110 second partitions, 112 second gas
Cylinder, 114 second bearings, 116 first sound attenuations, 118 first silencing cavities, 120 circumferential exhaust ducts, 122 first exhausts are led to
Road, 124 second exhaust passages, 126 second sound attenuations, 128 second silencing cavities.
Specific embodiment
In order to be more clearly understood that the above-mentioned purpose of the utility model, feature and advantage, below in conjunction with the accompanying drawings and have
The utility model is further described in detail in body embodiment.It should be noted that in the case where there is no conflict, this Shen
The feature in embodiment and embodiment please can be mutually combined.
Many details are elaborated in the following description in order to fully understand the utility model, still, this practicality
New to be implemented using other different from other modes described here, therefore, the scope of protection of the utility model is simultaneously
From the limitation of following public specific embodiment.
Referring to Fig. 1 to Fig. 6 descriptions according to the compression assembly of some embodiments of the utility model.
As shown in Figure 1, embodiment according to the present utility model proposes a kind of compression assembly, including：Along rotation bent axle 102
Axial direction be from top to bottom bonded the clutch shaft bearing 104, cylinder assembly, 114 and first sound attenuation of second bearing of setting successively
116, the inner wall of the first sound attenuation 116 is enclosed the first silencing cavity 118 with the lower face of second bearing 114；Cylinder assembly
Including：At least two cylinders being arranged side by side vertically and the baffle assembly being arranged between two adjacent cylinders, partition plate
Component opens up circumferential exhaust duct 120；At least one first exhaust passage 122, opens up, first exhaust from bottom to top vertically
The entrance of passage 122 is connected with circumferential exhaust duct 120；At least one second exhaust passage 124, is opened from bottom to top vertically
If the entrance of second exhaust passage 124 is connected with the first silencing cavity 118, wherein, first exhaust passage 122 is led to second exhaust
The outlet in road 124 is opened in the upper surface of clutch shaft bearing 104, gas and the second silencing cavity in circumferential exhaust duct 120
Gas in 128 is conducted and discharged via clutch shaft bearing 104 upwards, and the sum of area of smallest cross-sectional of all exhaust passages is S
(unit：Mm2), the discharge capacity of compression assembly is V (units：Mm3), S and V meets (1)：
In this embodiment, by the maximum for the ratio for limiting the discharge capacity of compression assembly and the smallest cross-sectional of exhaust passage
Value limits flow velocity during gas discharge, the discharge loss of compression assembly can be reduced, so as to promote the Energy Efficiency Ratio of compressor.
Specifically, according to fluid pipeline flowing in frictional head loss formula (2) understand, in pipeline at other
On the premise of part is constant, linear loss h and flow velocity ν's is square proportional, then when flow velocity promotes one times, linear loss is
Originally four times, as shown in Fig. 2, cop and rotation speed relation graph, for compressor, under conditions of operating mode is constant, when
Rotating speed from 30rsp be promoted to 60rsp when, cop rise, when rotating speed is promoted to 120rps from 60rps, compressor test cop is apparent
It reduces, although there are many influence cop factors, formula (2) and actual analysis, cop when exhaust linear loss is to higher rotation speed
It is affected, and as rotating speed rise linear loss increased dramatically.Therefore exhaust passage area is increased to reduce flow velocity to being promoted
Cop is critically important.
Wherein：L is pipe range, d is caliber, ν is mean flow rate, ν2/ 2g is unit gravity dynamic head, and λ is on-way resistance system
Number.
Wherein, the discharge capacity of compression assembly is the discharge gas volume that compressor air-discharging end measures in the unit time, first axle
It is respectively base bearing and supplementary bearing that 104, which are held, with second bearing 114, and the first exhaust that exhaust passage includes being vented from partition plate is led to
Road 122 and the second exhaust passage 124 for being vented from supplementary bearing.
In addition, according to the size of each parts, exhaust passage either cylinder can also when it is square, oval etc.
Shape.
Since the parts of composition compression assembly are including at least clutch shaft bearing 104, the gas for being from top to bottom bonded setting successively
Cylinder component, 114 and first sound attenuation 116 of second bearing, wherein, cylinder assembly includes be arranged side by side vertically at least two
A cylinder and the baffle assembly being arranged between two adjacent cylinders, and exhaust passage is opened in above-mentioned parts successively
On, in order to which more flexible and changeable design meets exhaust requirements, the row that is opened up in actual design on any one parts
The area of section of gas passage can be different from the area of the exhaust passage opened up on another parts, and smallest cross-sectional can be with
It is arranged on above-mentioned arbitrary parts.
Embodiment one：
As shown in figure 3, in the above embodiment, it is preferable that first exhaust passage 122 is distinguished with second exhaust passage 124
Separate and set.
In this embodiment, first exhaust passage 122 is to separate the individual passage set with second exhaust passage 124,
Do not have intercommunicating pore i.e. between first exhaust passage 122 and second exhaust passage 124, first exhaust passage 122 is served only for discharging
The compressed gas discharged from baffle assembly, and second exhaust passage 124 is served only for the compressed gas that discharge is discharged from second bearing 114
Body, that is, second bearing 114 exhaust with partition plate exhaust without mix, can maximum reduction two fluids losses by mixture,
Promote cop (refrigerating efficiency).
Embodiment two：
As shown in figure 4, in any of the above-described embodiment, it is preferable that using the lower face of baffle assembly as divisional plane, second
Exhaust passage 124 at least bag first exhaust subchannel and second exhaust subchannel from bottom to up, wherein, second exhaust subchannel with
First exhaust passage 122, which overlaps, to be set, so that the gas in circumferential exhaust duct 120 is directly passed along second exhaust passage 124
It leads.
In this embodiment, by by the upper semisection (second row in first exhaust passage 122 and second exhaust passage 124
Gas subchannel) overlap setting, i.e., second exhaust passage 124 can be only set when setting, and in second exhaust passage 124
Portion connects setting with circumferential exhaust duct 120, and setting structure is simpler, thus manufacturing cost compare it is relatively low.
Wherein, the quantity of first exhaust passage 122 can be identical with the quantity of second exhaust passage 124, i.e., each
Two exhaust passages 124 turned on by the region of circumferential exhaust duct 120 or the quantity of first exhaust passage 122 with
The quantity of second exhaust passage 124 differs, i.e., in specified second exhaust passage 124 by the area of circumferential exhaust duct 120
Domain turns on.
Embodiment three：
As shown in figure 5, in any of the above-described embodiment, it is preferable that circumferential exhaust duct 120 also at least one second row
The connection of gas passage 124 is set, while the gas in circumferential exhaust duct 120 is exported via first exhaust passage 122, warp
It is exported by second exhaust passage 124.
It in this embodiment, will by the way that circumferential exhaust duct 120 is connected at least one second exhaust passage 124
While gas in circumferential exhaust duct 120 is exported via first exhaust passage 122, exported via second exhaust passage 124,
There is at least one first exhaust passage 122 without second bearing 114, and directly pass through partition plate, upper cylinder, first axle
104 are held, so as on the premise of partition plate exhaust and the exhaust of second bearing 114 is met, on the one hand, can partly reduce first exhaust
The mixing of passage 122 and when partially overlapping of second exhaust passage 124, the exhaust of second bearing 114 and partition plate exhaust, the opposing party
Face, it is possible to reduce the hole bit quantity opened up on second bearing 114, air intake duct and partition plate.
As shown in fig. 6, in order to which more flexible and changeable design meets exhaust requirements, in actual design any one zero
The area of section of the exhaust passage opened up on component can be different from the area of the exhaust passage opened up on another parts, and
And smallest cross-sectional can be arranged on above-mentioned arbitrary parts, the maximum secting area of one of first exhaust passage 122 is S1,
Minimum sectional area is S2, and the maximum secting area of a second exhaust passage 124 is S3, minimum sectional area S4, therefore is analogized.
The gross area of so all exhaust passages is：
S=S2+S4+ ...
In any of the above-described embodiment, it is preferable that first exhaust passage 122 has more respectively with second exhaust passage 124
Item, a plurality of first exhaust passage 122 are circumferentially distributed rotating around rotation bent axle 102 with a plurality of second exhaust passage 124.
In this embodiment, by by first exhaust passage 122 and second exhaust passage 124 rotating around rotation bent axle 102
It is circumferentially distributed open up it is a plurality of, on the one hand, on bearing, cylinder, partition plate respectively along specified axis circumferentially open up through hole preparation process compared with
Simply, on the other hand, by opening up a plurality of exhaust passage, the area of section of exhaust passage is added, so as in compressor displacement
On the premise of constant, exhaust flow rate is effectively controlled.
In any of the above-described embodiment, it is preferable that baffle assembly includes：Be bonded from top to bottom vertically the first of setting every
Plate 108 and second partition 110, the lower face of first partition 108 offers the first circumferential slot, the upper surface pair of second partition 110
The second circumferential slot should be opened up, wherein, setting, the first circumferential slot and second week are bonded with second partition 110 by first partition 108
Circumferential exhaust duct 120 is enclosed to slot.
In this embodiment, by the way that baffle assembly to be arranged to include circumferentially to be bonded from top to bottom to the first partition of setting
108 with second partition 110, open up the first circumferential slot in the lower face of first partition 108, opened in the upper surface of second partition 110
Begin the second circumferential slot, and after first partition 108 and second partition 110 assemble, shape is enclosed by the first circumferential slot and the second circumferential slot
Circumferentially exhaust duct 120, on the one hand, it is opened up in first partition 108 respectively for the gas vent of top fitting cylinder exhaust,
It is opened up on second partition 110 due to the gas vent of lower section fitting cylinder exhaust, more convenient, another aspect, by that will arrange is set
Stomata is connected with circumferential exhaust duct 120, realizes cylinder while using bearing exhaust, the function being vented using partition plate.
Wherein, first partition 108 and second partition 110 are annular baffle.
In any of the above-described embodiment, it is preferable that multi-cylinder rotary compressor is when the quantity of cylinder is 2, two cylinders
The first cylinder 106 and the second cylinder 112 are followed successively by from top to bottom；First exhaust passage 122 includes being corresponding in turn to being arranged at second
Partition plate 110, first partition 108, the first cylinder 106, the axially extending bore on clutch shaft bearing 104；Second exhaust passage 124 includes
It is corresponding in turn to and is arranged at second bearing 114, the second cylinder 112, second partition 110, first partition 108, the first cylinder 106,
Axially extending bore on one bearing 104.
In this embodiment, by first exhaust passage include be arranged on including be corresponding in turn to be arranged at second partition 110,
First partition 108, the first cylinder 106, the axially extending bore on clutch shaft bearing 104 and second channel include being arranged on the second axis
The 114, second cylinder 112, second partition 110, first partition 108, the first cylinder 106, the axial direction on clutch shaft bearing 104 is held to lead to
The preparation of first exhaust passage and second channel by each axially through being correspondingly arranged, is realized in hole.
In any of the above-described embodiment, it is preferable that the area of section of second exhaust subchannel is more than first exhaust subchannel
Area of section；And/or the area of section of first exhaust passage is more than the area of section of first exhaust subchannel.
In this embodiment, by by the area of section of second exhaust subchannel be more than first exhaust subchannel section face
Product；And/or the area of section of first exhaust passage is more than the section face in the section face, i.e. lower semisection passage of first exhaust subchannel
Product is set smaller than the area of section of upper semisection passage, even if the amount ratio of the gas refrigerant flowed in upper semisection is in lower semisection
The amount of the gas refrigerant of interior flowing is more, and gas refrigerant also can swimmingly flow in upper semisection exhaust flow path.
In any of the above-described embodiment, it is preferable that compression assembly further includes：Second sound attenuation 126118 is arranged at
The upper surface of one bearing 104, the inner wall of the second sound attenuation 126118 are enclosed second with the upper surface of clutch shaft bearing 104
Silencing cavity 128 is additionally provided at least one intercommunicating pore on second sound attenuation 126118, wherein, it is discharged via clutch shaft bearing 104
Gas into after the second silencing cavity 128, discharged by intercommunicating pore.
In this embodiment, by setting the second sound attenuation 126118, one side realizes erasure effect, on the other hand,
The inner wall of second sound attenuation 126118 is enclosed the second silencing cavity 128, the second silencing cavity with the upper surface of clutch shaft bearing 104
128th, silencing cavity (being arranged in circumferential exhaust duct 120) and the first silencing cavity 118 can be connected in partition plate, be provided with by
The first exhaust passage 122 that second silencing cavity 128 is connected with anechoic chamber in partition plate, the first exhaust passage 122 perforation first every
Plate 108, the first cylinder 106 and clutch shaft bearing 104 flange part and formed, be provided with the first silencing cavity 118 and in partition plate the
The second exhaust flow path of two silencing cavities 128 connection, the second exhaust flow path penetrate through flange part, the second cylinder of second bearing 114
112nd, second partition 110, first partition 108, the first cylinder 106 and clutch shaft bearing 104 and formed.
In any of the above-described embodiment, it is preferable that compression assembly further includes：First offset piston is arranged on the first cylinder
In 106 cavity, the lateral wall of the first offset piston, the madial wall of cavity of the first cylinder 106, the lower end of clutch shaft bearing 104
Face and the upper surface of first partition 108 are enclosed the first working chamber；Second offset piston is arranged on the chamber of the second cylinder 112
In vivo, the lateral wall of the second offset piston, the madial wall of cavity of the second cylinder 112, the upper surface and second of second partition 110
The upper surface of bearing 114 is enclosed the second working chamber；Wherein, the first working chamber open up respectively with the second silencing cavity 128 and
The first row stomata that circumferential exhaust duct 120 connects, the second working chamber opens up to be arranged respectively with the first silencing cavity 118 and circumferentially
The second row stomata that air drain road 120 connects.
In this embodiment, by setting the first working chamber and the second working chamber, bias is driven by rotating bent axle 102
Piston rotates, and realizes to being compressed into the gas in working chamber, when the pressure of compressed gas reaches designated value, leads to respectively
It crosses gas vent and is discharged into the first silencing cavity 118, the second silencing cavity 128 and circumferential air discharge duct, arranged in the first silencing cavity 118 with circumferential
Compressed gas in air drain is discharged into the second silencing cavity 128 by second exhaust passage 124 and first exhaust passage 122, to pass through
Second silencing cavity 128 discharges the refrigerant gas of high temperature and pressure, to provide power for refrigeration cycle.
The embodiment of the utility model second aspect proposes a kind of multi-cylinder rotary compressor, including：Compressor housing；
Compression assembly as described in any one of the utility model first aspect embodiment is arranged in compression case body；Electric machine assembly, even
Rotation bent axle is connected to, and opposite compression assembly is arranged at the top of compressor housing, electric machine assembly includes being fixed at housing
Interior stator and the rotor that can be rotatably dispose in stator, rotor are set on rotation bent axle, wherein, turned by rotor
It is dynamic, rotation bent axle rotation is driven, compression assembly to be driven to carry out gas compression.
In this embodiment, by the maximum for the ratio for limiting the discharge capacity of compression assembly and the smallest cross-sectional of exhaust passage
Value limits flow velocity during gas discharge, the discharge loss of compression assembly can be reduced, so as to promote the Energy Efficiency Ratio of compressor.
In the utility model, term " first ", " second ", " the 3rd " are only used for the purpose of description, and it is not intended that
Instruction implies relative importance；Term " multiple " then refers to two or more, unless otherwise restricted clearly.Term " peace
The terms such as dress ", " connected ", " connection ", " fixation " should all be interpreted broadly, for example, " connection " can be fixedly connected, it can also
It is to be detachably connected or be integrally connected；" connected " can be directly connected, and can also be indirectly connected by intermediary.It is right
For those of ordinary skill in the art, it can understand that specific in the utility model of above-mentioned term containing as the case may be
Justice.
In the description of the utility model, it is to be understood that the fingers such as term " on ", " under ", "left", "right", "front", "rear"
The orientation or position relationship shown be based on orientation shown in the drawings or position relationship, be for only for ease of description the utility model and
Simplify description rather than instruction or imply that signified device or unit there must be specific direction, with specific azimuth configuration
And operation, it is thus impossible to be interpreted as the limitation to the utility model.
In the description of this specification, the description of term " one embodiment ", " some embodiments ", " specific embodiment " etc.
Mean that combining the particular features, structures, materials, or characteristics that the embodiment or example describe is contained at least the one of the utility model
In a embodiment or example.In the present specification, schematic expression of the above terms is not necessarily referring to identical embodiment
Or example.Moreover, the particular features, structures, materials, or characteristics of description can be in any one or more embodiments or example
In combine in an appropriate manner.
It these are only the preferred embodiment of the utility model, be not intended to limit the utility model, for this field
Technical staff for, various modifications and changes may be made to the present invention.Within the spirit and principle of the utility model,
Any modifications, equivalent replacements and improvements are made should be included within the scope of protection of this utility model.
Claims (11)
1. a kind of compression assembly, including rotating bent axle, which is characterized in that the compression assembly further includes：
Along the axial direction of the rotation bent axle be from top to bottom bonded successively the clutch shaft bearing of setting, cylinder assembly, second bearing and
First sound attenuation, the inner wall of first sound attenuation are enclosed the first silencing cavity with the lower face of the second bearing,
The cylinder assembly includes：
Along at least two cylinders being axially arranged side by side and the partition plate group being arranged between two adjacent cylinders
Part, the baffle assembly open up circumferential exhaust duct；
At least one first exhaust passage opens up from bottom to top along the axial direction, the entrance of the first exhaust passage with it is described
Circumferential exhaust duct connection；
At least one second exhaust passage, opens up from bottom to top along the axial direction, the entrance of the second exhaust passage with it is described
First silencing cavity connects,
Wherein, the outlet of the first exhaust passage and the second exhaust passage is opened in the upper end of the clutch shaft bearing
Face, the gas in the circumferential direction exhaust duct and gas in the second silencing cavity conduction and are arranged upwards via the clutch shaft bearing
Go out, the sum of area of smallest cross-sectional of all exhaust passages is S (units：mm2), the discharge capacity of the compression assembly is (single for V
Position：mm3), S and V meets：
2. compression assembly according to claim 1, which is characterized in that
The first exhaust passage separates setting respectively with the second exhaust passage.
3. compression assembly according to claim 1, which is characterized in that
Using the lower face of the baffle assembly as divisional plane, at least bag first exhaust is logical from bottom to up for the second exhaust passage
Road and second exhaust subchannel,
Wherein, the second exhaust subchannel overlaps setting with the first exhaust passage, so that in the circumferential direction air discharge duct
Gas is directly along the second exhaust channel conductance.
4. compression assembly according to claim 2, which is characterized in that it is described circumferential direction exhaust duct also with described at least one
The connection of second exhaust passage is set, by the gas in the circumferential exhaust duct via same derived from the first exhaust passage
When, it is exported via the second exhaust passage.
5. compression assembly according to claim 1, which is characterized in that
The first exhaust passage has a plurality of, a plurality of first exhaust passage and a plurality of institute with the second exhaust passage respectively
It is circumferentially distributed rotating around the rotation bent axle to state second exhaust passage.
6. compression assembly according to claim 1, which is characterized in that the baffle assembly includes：
It is bonded the first partition and second partition of setting from top to bottom along the axial direction, the lower face of the first partition offers
First circumferential slot, the upper surface of the second partition, which corresponds to, opens up the second circumferential slot,
Wherein, setting is bonded with the second partition by the first partition, first circumferential slot is circumferential with described second
Slot is enclosed the circumferential exhaust duct.
7. compression assembly according to claim 6, which is characterized in that
When the quantity of the cylinder is 2, described two cylinders are followed successively by the first cylinder and the second cylinder from top to bottom；
The first exhaust passage include be corresponding in turn to be arranged at the second partition, the first partition, first cylinder,
Axially extending bore on the clutch shaft bearing；
The second exhaust passage include be corresponding in turn to be arranged at the second bearing, second cylinder, the second partition,
The first partition, first cylinder, the axially extending bore on the clutch shaft bearing.
8. compression assembly according to claim 3, which is characterized in that
The area of section of the second exhaust subchannel is more than the area of section of the first exhaust subchannel；And/or
The area of section of the first exhaust passage is more than the area of section of the first exhaust subchannel.
9. compression assembly according to claim 7, which is characterized in that the compression assembly further includes：
Second sound attenuation is arranged at the upper surface of the clutch shaft bearing, the inner wall of second sound attenuation and described first
The upper surface of bearing is enclosed the second silencing cavity, and at least one intercommunicating pore is additionally provided on second sound attenuation,
Wherein, after entering second silencing cavity via the gas of clutch shaft bearing discharge, discharged by the intercommunicating pore.
10. compression assembly according to claim 9, which is characterized in that the compression assembly further includes：
First offset piston is arranged in the cavity of first cylinder, the lateral wall of first offset piston, described first
The madial wall of the cavity of cylinder, the lower face of the clutch shaft bearing and the upper surface of the first partition are enclosed the first work
Chamber；
Second offset piston is arranged in the cavity of second cylinder, the lateral wall of second offset piston, described second
The madial wall of the cavity of cylinder, the upper surface of the second partition and the upper surface of the second bearing are enclosed the second work
Chamber；
Wherein, first working chamber opens up first connected respectively with second silencing cavity and the circumferential air discharge duct
Gas vent, second working chamber open up the second row connected respectively with first silencing cavity and the circumferential air discharge duct
Stomata.
11. a kind of multi-cylinder rotary compressor, which is characterized in that further include：
Compressor housing；
Compression assembly as any one of claims 1 to 10 is arranged in the compression case body；
Electric machine assembly is connected to the rotation bent axle, and relatively described compression assembly is arranged at the top of the compressor housing,
The electric machine assembly includes being fixed at the in vivo stator of the shell and the rotor that can be rotatably dispose in the stator,
The rotor is set on the rotation bent axle,
Wherein, rotated by the rotor, the rotation bent axle rotation is driven, the compression assembly to be driven to carry out gas pressure
Contracting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720942235.1U CN207406486U (en) | 2017-07-31 | 2017-07-31 | Compression assembly and multi-cylinder rotary compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720942235.1U CN207406486U (en) | 2017-07-31 | 2017-07-31 | Compression assembly and multi-cylinder rotary compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207406486U true CN207406486U (en) | 2018-05-25 |
Family
ID=62322682
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720942235.1U Withdrawn - After Issue CN207406486U (en) | 2017-07-31 | 2017-07-31 | Compression assembly and multi-cylinder rotary compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207406486U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107387414A (en) * | 2017-07-31 | 2017-11-24 | 广东美芝制冷设备有限公司 | Compression assembly and multi-cylinder rotary compressor |
| CN112360739A (en) * | 2020-10-26 | 2021-02-12 | 珠海格力节能环保制冷技术研究中心有限公司 | Compressor |
-
2017
- 2017-07-31 CN CN201720942235.1U patent/CN207406486U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107387414A (en) * | 2017-07-31 | 2017-11-24 | 广东美芝制冷设备有限公司 | Compression assembly and multi-cylinder rotary compressor |
| CN112360739A (en) * | 2020-10-26 | 2021-02-12 | 珠海格力节能环保制冷技术研究中心有限公司 | Compressor |
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