CN107120276B - Multi-cylinder rotary type compression assembly and multi-cylinder rotary type compressor - Google Patents
Multi-cylinder rotary type compression assembly and multi-cylinder rotary type compressor Download PDFInfo
- Publication number
- CN107120276B CN107120276B CN201710516135.7A CN201710516135A CN107120276B CN 107120276 B CN107120276 B CN 107120276B CN 201710516135 A CN201710516135 A CN 201710516135A CN 107120276 B CN107120276 B CN 107120276B
- Authority
- CN
- China
- Prior art keywords
- exhaust
- partition plate
- cylinder
- compression assembly
- exhaust hole
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
- F04C18/30—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
- F04C18/34—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members
- F04C18/356—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the outer member
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/12—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
Abstract
The invention provides a multi-cylinder rotary compression assembly and a multi-cylinder rotary compressor, wherein the multi-cylinder rotary compression assembly comprises: a plurality of cylinders, set gradually along rotary crankshaft ' S axial, the laminating sets up the baffle subassembly between two adjacent cylinders, the baffle subassembly is seted up and is switched on two at least first exhaust holes respectively with the cavity of two adjacent cylinders to and at least one exhaust passage who switches on with first exhaust hole, wherein, the area sum of all exhaust passages ' S minimum cross-section is S1, the area sum of all first exhaust holes ' S maximum cross-section is S2, S1 satisfies with S2: S1/S2 is not less than 0.8. Through the technical scheme of the invention, the minimum value of the ratio of S1 to S2 is set, so that the exhaust loss of the exhaust channel on the partition plate assembly can be reduced, the energy efficiency ratio of the compression assembly is ensured, and the working efficiency of the compression assembly is improved.
Description
Technical Field
The invention relates to the field of compressors, in particular to a multi-cylinder rotary compression assembly and a multi-cylinder rotary compressor.
Background
In the related art, the efficiency of the refrigerating capacity is improved, when the compression assembly of the rotary compressor is arranged by adopting double cylinders, the displacement of a single cylinder is increased, along with the increase of the displacement of the single cylinder, in order to reduce the exhaust loss of the compressor and improve the energy efficiency ratio of the compressor, the aperture design of the exhaust holes of the cylinders is also increasingly large, but the excessive exhaust aperture increases the clearance volume of the cylinders, so that the refrigerating capacity and the energy efficiency ratio of the compressor are influenced, therefore, in order to solve the problems, the single cylinder in the compression assembly of the double-cylinder rotary compressor adopts a double-exhaust structural design, namely, an upper cylinder and a lower cylinder are designed into a four-exhaust structural design, the four-exhaust structural design comprises the following steps of respectively arranging exhaust channels on the exhaust of a main bearing:
(1) if the exhaust groove is too small, larger exhaust loss is caused;
(2) if the exhaust area is too large, the rigidity of the partition plate may be insufficient, resulting in deformation of the partition plate and further affecting the reliability of the compression assembly.
Disclosure of Invention
In order to solve at least one of the above technical problems, it is an object of the present invention to provide a multi-cylinder rotary compression assembly.
Another object of the present invention is to provide a multi-cylinder rotary compressor.
To achieve the above object, an embodiment of a first aspect of the present invention proposes a multi-cylinder rotary compression assembly, comprising: a plurality of cylinders, set gradually along rotary crankshaft ' S axial, the laminating sets up the baffle subassembly between two adjacent cylinders, the baffle subassembly is seted up and is switched on two at least first exhaust holes respectively with the cavity of two adjacent cylinders to and at least one exhaust passage who switches on with first exhaust hole, wherein, the area sum of all exhaust passages ' S minimum cross-section is S1, the area sum of all first exhaust holes ' S maximum cross-section is S2, S1 satisfies with S2:
in the technical scheme, the first exhaust holes and the at least one exhaust channel communicated with the first exhaust holes are formed in the partition plate assembly arranged between two adjacent cylinders, the sum of the areas of the minimum sections of all the exhaust channels is S1, the sum of the areas of the maximum sections of all the first exhaust holes is S2, and the minimum value of the ratio of S1 to S2 is set, so that the exhaust loss of the exhaust channels on the partition plate assembly can be reduced, the energy efficiency ratio of the compression assembly is ensured, and the working efficiency of the compression assembly is improved.
Specifically, taking the double cylinder as an example, any one cylinder in the double-cylinder rotary compression assembly adopts a double exhaust structure design, namely an upper cylinder and a lower cylinder, namely a four-exhaust structure design, for the upper cylinder, at least comprises an exhaust hole arranged on the first bearing and a first exhaust hole arranged on the partition plate assembly and communicated with the working chamber of the upper cylinder, and an exhaust passage communicated with the first exhaust hole, for the lower cylinder, at least comprises an exhaust hole arranged on the second bearing and a first exhaust hole arranged on the partition plate assembly and communicated with the working chamber of the lower cylinder, and the gas forms compressed gas after being compressed by the working chamber, then is sequentially exhausted through the first exhaust hole and the exhaust passage, and is exhausted by limiting
The discharge loss of the compressed gas passing through the discharge passage is small.
The partition plate assembly can be formed by only one partition plate and a fixing piece for fixing the partition plate, or formed by laminating a plurality of partition plates.
In addition, the multi-cylinder rotary compression assembly in the above embodiment provided by the invention may further have the following additional technical features:
in the above technical scheme, preferably, when the partition board assembly is two partition boards, the two partition boards include a first partition board and a second partition board which are attached to each other along the axial direction, an end face of the first partition board attached to an adjacent cylinder is a first end face, an end face of the first partition board attached to the second partition board is a second end face, an end face of the second partition board attached to the first partition board is a third end face, and an end face of the second partition board attached to an adjacent cylinder is a fourth end face, wherein the first end face and the fourth end face are respectively provided with at least one first exhaust hole, and the second end face and/or the third end face are provided with exhaust grooves to serve as exhaust passages, and the at least one exhaust valve is axially communicated with the exhaust grooves.
In the technical scheme, the partition plate assembly is arranged into the first partition plate and the second partition plate which are axially attached, wherein the first partition plate is attached to the upper cylinder, the second partition plate is attached to the lower cylinder, the first end face, the second end face, the third end face and the fourth end face are sequentially arranged from top to bottom, at least one first exhaust hole is formed in the first end face and the fourth end face respectively, and exhaust grooves are formed in the second end face and/or the third end face, so that the function of exhausting through the partition plates is realized.
Specifically, the exhaust grooves may be formed only on the second end surface or the third end surface, or the exhaust grooves may be formed on the second end surface and the third end surface at the same time, and when the exhaust grooves are formed at the same time, the structures of the exhaust grooves are arranged correspondingly.
In any of the above technical solutions, preferably, the partition plate is an annular partition plate, the outer diameter of the annular partition plate is D, the inner diameter of the annular partition plate is D, the exhaust groove at least includes an exhaust valve groove portion and an annular groove portion that are communicated with each other in the circumferential direction, the first exhaust hole is opened on an end surface of the exhaust valve groove portion, the outer diameter of the annular groove portion is D1, the inner diameter of the annular groove portion is D1, and the width of the annular groove portion in the radial direction is L, where D, D1, D1 and L satisfy: l is D1-D1 ≤ 0.75 × (D-D).
In this technical scheme, when the baffle is cyclic annular baffle, through the relation between the internal diameter of injecing cyclic annular slot part, external diameter and radial width and the external diameter and the internal diameter of cyclic annular baffle, on the one hand, can guarantee the rigidity of baffle, reduce the deformation probability, on the other hand, can guarantee the rationality that cyclic annular slot part structure set up to promote volumetric efficiency.
In any of the above technical solutions, d and d1 preferably further satisfy:
d and D1 also satisfy:
in this technical scheme, through further inject the relation between the internal diameter of cyclic annular baffle and the internal diameter of cyclic annular slot portion respectively to and the relation between the external diameter of cyclic annular baffle and the external diameter of cyclic annular slot portion, can set up cyclic annular slot portion structure maximize, further promote the volumetric efficiency to reduce pressure loss.
In any of the above technical solutions, preferably, for the same separator, the thickness of the separator is h1, the height of the first exhaust hole is h2, and the axial depth of the annular groove portion is h3, where h1, h2 and h3 satisfy: 2 (h1-h3) > 3 (h 2-0.3).
In the technical scheme, for the same partition plate, such as a first partition plate or a second partition plate, the thickness of the partition plate is h1, the height of the first exhaust hole is h2, the axial depth of the annular groove part is h3, and h1, h2 and h3 satisfy the following conditions: 2 x (h1-h3) > 3 x (h2-0.3), the limitation of the height of the exhaust hole and the depth of the annular groove part of the partition plate in the thickness direction is realized, the rigidity of the partition plate is further improved, the strength of the partition plate is ensured, and the stability and the safety of the compression assembly are improved.
Specifically, the first exhaust hole is formed in the end face of the exhaust valve groove portion, and the area in which the first exhaust hole is formed has a 0.3mm protruding structure with respect to the periphery, and the reliability of the arrangement of the partition plate is further improved by defining the relationship between the height of the first exhaust hole and the depth of the annular groove portion.
In any of the above technical solutions, preferably, the minimum inner wall thickness of the exhaust valve groove portion is L1, wherein L1 satisfies L1 ≥ 0.5 mm.
In this technical scheme, through the minimum wall thickness of the inboard of injecing discharge valve slot part, when guaranteeing the baffle intensity, can make the volume setting of discharge valve slot maximize to reduce the exhaust loss of compression assembly.
In any of the above technical solutions, preferably, the first partition plate and the second partition plate have the same thickness; when the exhaust grooves are multiple, the depth of each exhaust groove is equal.
In the technical scheme, the first partition plate and the second partition plate are arranged to be the same in thickness, and each exhaust channel is arranged to be the same in depth, so that the exhaust valve parameters are the same, and the component processing standardization is facilitated.
In any of the above technical solutions, preferably, the multi-cylinder rotary compression assembly further includes: the first bearing is arranged at one axial end of the plurality of cylinders and is provided with a second exhaust hole communicated with the cavity of the cylinder arranged at one axial end; and the second bearing is arranged at the other axial ends of the cylinders and is provided with a second exhaust hole communicated with the cavity of the cylinder arranged at the other axial end.
In the technical scheme, the first bearings and the second bearings are respectively arranged at the two axial ends of the plurality of cylinders, and the second exhaust holes communicated with the working cavities of the adjacent cylinders are formed, so that the compressed gas at the two ends of the cylinders is exhausted.
In any of the above technical solutions, preferably, the cross-sectional area of the first exhaust hole is equal to the cross-sectional area of the second exhaust hole.
In this technical scheme, use double-cylinder compression subassembly as an example, include second exhaust hole, first exhaust hole and second exhaust hole from top to bottom in proper order along the axial, set up to the same through the aperture with first exhaust hole and second exhaust hole, and then the exhaust area in exhaust hole is the same to be favorable to even exhaust, with improvement pressure loss.
In any of the above technical solutions, preferably, when the plurality of cylinders include the first cylinder and the second cylinder that are sequentially arranged along the axial direction, the plurality of cylinders sequentially include the first bearing, the first cylinder, the first partition plate, the second cylinder, and the second bearing from top to bottom along the axial direction, wherein a cross-sectional area of the first exhaust hole that is arranged on the first partition plate is smaller than a cross-sectional area of the second exhaust hole that is arranged on the first bearing, and a cross-sectional area of the first exhaust hole that is arranged on the second partition plate is larger than a cross-sectional area of the second exhaust hole that is arranged on the second bearing.
In the technical scheme, the cross-sectional area of the first exhaust hole formed in the first partition plate is limited to be smaller than the cross-sectional area of the second exhaust hole formed in the first air cylinder, so that the gas flow of the first exhaust hole formed in the first partition plate is reduced, the flow rate of the first exhaust hole formed in the first partition plate passing through the first partition plate is reduced, the upper air cylinder, the flow rate of the second exhaust hole formed in the second bearing is reduced, the cross-sectional area of the first exhaust hole formed in the second partition plate is limited to be larger than the cross-sectional area of the second exhaust hole formed in the second bearing, the flow rate of the second exhaust hole formed in the second bearing is reduced, the second exhaust hole passing through the second bearing, the second partition plate, the first air cylinder, the flow rate of the second exhaust hole formed in the first bearing.
An embodiment of a second aspect of the present invention provides a multi-cylinder rotary compressor, including: a compressor housing; in any technical scheme, the multi-cylinder rotary compression assembly is arranged in a compressor shell; the motor assembly, relative compression assembly set up in the upper portion of compressor housing, and motor assembly sets up the rotor in the stator including fixed stator that sets up in the casing and can rotate, and the rotor cover is established on rotatory bent axle, and wherein, rotates through the rotor, drives rotatory bent axle rotation to drive compression assembly carries out gas compression.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 shows a cross-sectional structural schematic of a multi-cylinder rotary compression assembly according to one embodiment of the present invention;
FIG. 2 illustrates a schematic structural view of a first partition in a multi-cylinder rotary compression assembly in accordance with one embodiment of the present invention;
FIG. 3 shows a schematic structural view of section A-A in FIG. 2;
FIG. 4 shows a schematic structural view of a second partition in a multi-cylinder rotary compression assembly in accordance with an embodiment of the present invention;
FIG. 5 shows a schematic structural view of section A-A in FIG. 4;
wherein, the correspondence between the reference numbers and the part names in fig. 1 to 5 is:
102 rotating crankshaft, 104 first exhaust port, 106 first diaphragm, 108 second diaphragm, 110 exhaust groove, 112 first bearing, 114 second bearing, 116 first cylinder, 118 second cylinder.
Detailed Description
In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.
A multi-cylinder rotary compression assembly according to some embodiments of the present invention is described below with reference to fig. 1-5.
As shown in fig. 1 to 5, a multi-cylinder rotary compression assembly according to an embodiment of the present invention includes: the plurality of cylinders are sequentially arranged along the axial direction of the rotating crankshaft 102, the partition plate assembly is arranged between every two adjacent cylinders in a laminating mode, the partition plate assembly is provided with at least two first exhaust holes 104 which are respectively communicated with the cavities of the two adjacent cylinders, and at least one exhaust channel communicated with the first exhaust holes 104, the sum of the areas of the minimum cross sections of all the exhaust channels is S1, the sum of the areas of the maximum cross sections of all the first exhaust holes 104 is S2, and S1 and S2 meet the following requirements:
in this embodiment, the partition plate assembly arranged between two adjacent cylinders is provided with the first exhaust holes 104 and at least one exhaust channel communicated with the first exhaust holes 104, the sum of the areas of the minimum cross sections of all the exhaust channels is S1, the sum of the areas of the maximum cross sections of all the first exhaust holes 104 is S2, and by setting the minimum value of the ratio of S1 to S2, the exhaust loss of the exhaust channels on the partition plate assembly can be reduced, the energy efficiency ratio of the compression assembly is ensured, and the working efficiency of the compression assembly is improved.
Specifically, taking two cylinders as an example, any one cylinder in the double-cylinder rotary compression assembly adopts a double-exhaust structure design, namely an upper cylinder and a lower cylinder, namely a four-exhaust structure design, for the upper cylinder, at least comprises an exhaust hole formed on the first bearing 112 and a first exhaust hole 104 formed on the partition plate assembly and communicated with the working chamber of the upper cylinder, and an exhaust channel communicated with the first exhaust hole 104, for the lower cylinder, at least comprises an exhaust hole formed on the second bearing 114 and a first exhaust hole 104 formed on the partition plate assembly and communicated with the working chamber of the lower cylinder, and the gas forms compressed gas after being compressed by the working chamber, then is sequentially exhausted through the first exhaust hole 104 and the exhaust channel, and is exhausted by limiting
The discharge loss of the compressed gas passing through the discharge passage is small.
The partition plate assembly can be formed by only one partition plate and a fixing piece for fixing the partition plate, or formed by laminating a plurality of partition plates.
In addition, the multi-cylinder rotary compression assembly in the above embodiment provided by the invention may further have the following additional technical features:
as shown in fig. 1, in the above embodiment, preferably, when the separator assembly is two separators, the two separators include a first separator 106 and a second separator 108 which are axially attached to each other, an end surface of the first separator 106 attached to an adjacent cylinder is a first end surface, an end surface of the first separator 106 attached to the second separator 108 is a second end surface, an end surface of the second separator 108 attached to the first separator 106 is a third end surface, and an end surface of the second separator 108 attached to an adjacent cylinder is a fourth end surface, wherein the first end surface and the fourth end surface are respectively provided with at least one first exhaust hole 104, the second end surface and/or the third end surface are provided with exhaust grooves 110 as exhaust passages, and the at least one exhaust valve is axially communicated with the exhaust grooves 110.
In this embodiment, the first partition plate 106 and the second partition plate 108 are disposed along the axial direction, wherein the first partition plate 106 is disposed along the upper cylinder, the second partition plate 108 is disposed along the lower cylinder, and the first end surface, the second end surface, the third end surface and the fourth end surface are sequentially disposed from top to bottom, the first end surface and the fourth end surface are respectively provided with at least one first exhaust hole 104, and the second end surface and/or the third end surface are provided with exhaust grooves 110, so that the function of exhausting through the partition plates is realized.
Specifically, the exhaust grooves 110 may be formed only on the second end surface or the third end surface, or the exhaust grooves 110 may be formed on the second end surface and the third end surface at the same time, and when the exhaust grooves 110 are formed at the same time, the structures of the exhaust grooves 110 are arranged correspondingly.
Wherein, the size limitation of the exhaust passage includes but is not limited to the following real-time modes:
the first embodiment is as follows:
as shown in fig. 2 and 3, in any of the above embodiments, preferably, the partition plate is an annular partition plate, the outer diameter of the annular partition plate is D, the inner diameter of the annular partition plate is D, the exhaust groove 110 at least comprises an exhaust valve groove portion and an annular groove portion which are communicated with each other along the circumferential direction, the first exhaust hole 104 is opened on the end surface of the exhaust valve groove portion, the outer diameter of the annular groove portion is D1, the inner diameter of the annular groove portion is D1, and the width of the annular groove portion along the radial direction is L, where D, D1, D1 and L satisfy: l is D1-D1 ≤ 0.75 × (D-D).
In this embodiment, when the partition plate is an annular partition plate, by defining the relationship between the inner diameter, the outer diameter, and the width in the radial direction of the annular groove portion and the outer diameter and the inner diameter of the annular partition plate, on the one hand, the rigidity of the partition plate can be ensured, and the probability of deformation is reduced, and on the other hand, the rationality of the arrangement of the annular groove portion structure can be ensured, so that the volumetric efficiency is improved.
Example two:
as shown in fig. 2, in any of the above embodiments, d and d1 preferably further satisfy:
d and D1 also satisfy:
in this embodiment, by further defining the relationship between the inner diameter of the annular partition plate and the inner diameter of the annular groove portion, and the relationship between the outer diameter of the annular partition plate and the outer diameter of the annular groove portion, respectively, it is possible to maximally dispose the annular groove portion structure, further improve the volumetric efficiency, and reduce the pressure loss.
Example three:
in any of the above embodiments, as shown in fig. 3, preferably, for the same separator, the thickness of the separator is h1, the height of the first exhaust hole 104 is h2, and the depth of the annular groove portion in the axial direction is h3, wherein h1, h2 and h3 satisfy: 2 (h1-h3) > 3 (h 2-0.3).
In this embodiment, for the same partition, such as the first partition 106 or the second partition 108, the partition has a thickness h1, the height of the first exhaust holes 104 is h2, the depth of the annular groove portion in the axial direction is h3, and h1, h2 and h3 satisfy: 2 x (h1-h3) > 3 x (h2-0.3), the limitation of the height of the exhaust hole and the depth of the annular groove part of the partition plate in the thickness direction is realized, the rigidity of the partition plate is further improved, the strength of the partition plate is ensured, and the stability and the safety of the compression assembly are improved.
Specifically, the first exhaust hole 104 is opened in the end face of the exhaust valve groove portion, and the area in which the first exhaust hole 104 is opened has a projection structure of 0.3mm with respect to the periphery, and by defining the relationship between the height of the first exhaust hole 104 and the depth of the annular groove portion, the reliability of the partition plate arrangement is further improved.
Example four:
as shown in FIG. 2, in any of the above embodiments, preferably, the minimum inner wall thickness of the exhaust valve groove portion is L1, wherein L1 satisfies L1 ≧ 0.5 mm.
In this embodiment, by defining a minimum wall thickness of the inside of the discharge valve groove portion, the volume setting of the discharge valve groove 110 can be maximized while securing the strength of the diaphragm to reduce the discharge loss of the compression assembly.
In any of the above embodiments, preferably, the first 106 and second 108 bulkheads have equal thicknesses; when the exhaust groove 110 is plural, the depth of each exhaust groove 110 is equal.
In this embodiment, by providing the first and second bulkheads 106, 108 with the same thickness and each exhaust groove 110 with the same depth, the same exhaust valve parameters are achieved, thereby facilitating standardization of component tooling.
In any of the above embodiments, as shown in fig. 1, preferably, the multi-cylinder rotary compression assembly further comprises: the first bearing 112 is arranged at one axial end of the cylinders and is provided with a second exhaust hole communicated with the cavity of the cylinder arranged at one axial end; and a second bearing 114 disposed at the other axial end of the plurality of cylinders and provided with a second exhaust hole communicated with the cavity of the cylinder disposed at the other axial end.
In this embodiment, the first bearing 112 and the second bearing 114 are respectively arranged at the two axial ends of the plurality of cylinders, and the second exhaust holes communicated with the working chambers of the adjacent cylinders are formed, so that the compressed gas at the two ends of the cylinders is exhausted.
Wherein, the size limitation of the exhaust hole includes but is not limited to the following real-time modes:
example five:
in any of the above embodiments, the cross-sectional area of the first vent hole 104 is preferably equal to the cross-sectional area of the second vent hole.
In this embodiment, taking the dual-cylinder compression assembly as an example, the dual-cylinder compression assembly sequentially includes the second exhaust hole, the first exhaust hole 104 and the second exhaust hole from top to bottom along the axial direction, and the apertures of the first exhaust hole 104 and the second exhaust hole are set to be the same, so that the exhaust areas of the exhaust holes are the same, thereby facilitating uniform exhaust and improving pressure loss.
Example six:
as shown in fig. 1, in any of the above embodiments, preferably, when the plurality of cylinders includes a first cylinder 116 and a second cylinder 118 which are sequentially arranged along the axial direction, the plurality of cylinders sequentially include a first bearing 112, the first cylinder 116, a first partition 106, a second partition 108, the second cylinder 118, and a second bearing 114 from top to bottom along the axial direction, wherein a cross-sectional area of the first exhaust hole 104 arranged on the first partition 106 is smaller than a cross-sectional area of the second exhaust hole arranged on the first bearing 112, and a cross-sectional area of the first exhaust hole 104 arranged on the second partition 108 is larger than a cross-sectional area of the second exhaust hole arranged on the second bearing 114.
In this embodiment, by defining the cross-sectional area of the first exhaust hole 104 provided in the first partition 106 to be smaller than the cross-sectional area of the second exhaust hole provided in the first cylinder 116, the gas flow of the first exhaust holes 104 of the first partition 106 is reduced, the flow velocity of the first exhaust holes 104 of the first partition 106 passing through the exhaust passages of the first partition 106, the upper cylinder, the first bearing 112 and the like is reduced, the exhaust loss is reduced, by defining the cross-sectional area of the first vent hole 104 provided in the second barrier 108 to be larger than the cross-sectional area of the second vent hole provided in the second bearing 114, the gas flow of the second exhaust hole on the second bearing 114 is reduced, the flow speed of the second exhaust hole through the exhaust passages of the second bearing 114, the second partition 108, the first partition 106, the first cylinder 116, the first bearing 112 and the like is reduced, and the exhaust loss is further reduced.
An embodiment of a second aspect of the present invention provides a multi-cylinder rotary compressor, including: a compressor housing; the multi-cylinder rotary compression assembly in any one of the above embodiments, disposed in a compressor housing; the motor assembly, relative compression assembly set up in the upper portion of compressor housing, and motor assembly sets up the rotor in the stator including fixed stator that sets up in the casing and can rotate, and the rotor cover is established on rotatory bent axle, and wherein, rotates through the rotor, drives rotatory bent axle rotation to drive compression assembly carries out gas compression.
In the present invention, the terms "first", "second", and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; the term "plurality" means two or more unless expressly limited otherwise. The terms "mounted," "connected," "fixed," and the like are to be construed broadly, and for example, "connected" may be a fixed connection, a removable connection, or an integral connection; "coupled" may be direct or indirect through an intermediary. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", "front", "rear", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or unit must have a specific direction, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
In the description herein, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A multi-cylinder rotary compression assembly including a rotating crankshaft, comprising:
a plurality of cylinders which are sequentially arranged along the axial direction of the rotating crankshaft, a clapboard component is arranged between two adjacent cylinders in a laminating way, the clapboard component is provided with at least two first exhaust holes which are respectively communicated with the cavities of the two adjacent cylinders, and at least one exhaust channel which is communicated with the first exhaust holes,
wherein the sum of the areas of the minimum cross sections of all the exhaust passages is S1, the sum of the areas of the maximum cross sections of all the first exhaust holes is S2, and S1 and S2 satisfy:
the partition plate assembly is composed of two partition plates, each partition plate comprises a first partition plate and a second partition plate which are arranged in an axial attaching mode, the end face, attached to the adjacent cylinder, of each first partition plate is a first end face, the end face, attached to the second partition plate, of each first partition plate is a second end face, the end face, attached to the first partition plate, of each second partition plate is a third end face, and exhaust grooves are formed in the second end face and/or the third end face;
the partition plate is an annular partition plate, the outer diameter of the annular partition plate is D, the inner diameter of the annular partition plate is D, the exhaust groove at least comprises an exhaust valve groove part and an annular groove part which are mutually communicated along the circumferential direction, the exhaust valve groove part is communicated with the first exhaust hole along the axial direction, the outer diameter of the annular groove part is D1, the inner diameter of the annular groove part is D1, and the radial width of the annular groove part is L,
wherein D, D, D1, D1 and L satisfy:
2. the multi-cylinder rotary compression assembly of claim 1,
the end surface of the second clapboard jointed with the adjacent cylinder is a fourth end surface,
the first end face and the fourth end face are respectively provided with at least one first exhaust hole, the exhaust groove is used as the exhaust channel, and at least one exhaust valve is communicated with the exhaust groove along the axial direction.
3. Multi-cylinder rotary compression assembly according to claim 1 or 2,
d and d1 also satisfy:
d and D1 also satisfy:
4. multi-cylinder rotary compression assembly according to claim 1 or 2,
for the same partition plate, the thickness of the partition plate is h1, the height of the first exhaust hole is h2, the depth of the annular groove part along the axial direction is h3,
wherein h1, h2 and h3 satisfy:
5. multi-cylinder rotary compression assembly according to claim 1 or 2,
the minimum wall thickness of the inner side of the exhaust valve groove part is L1,
wherein L1 satisfies L1 is more than or equal to 0.5 mm.
6. The multi-cylinder rotary compression assembly of claim 1,
the first separator and the second separator are equal in thickness;
when the exhaust grooves are multiple, the depth of each exhaust groove is equal.
7. The multi-cylinder rotary compression assembly of any one of claims 1, 2 or 6, further comprising:
the first bearing is arranged at one axial end of the plurality of cylinders and is provided with a second exhaust hole communicated with the cavity of the cylinder arranged at one axial end;
and the second bearing is arranged at the other axial ends of the plurality of cylinders and is provided with a second exhaust hole communicated with the cavity of the cylinder arranged at the other axial end.
8. The multi-cylinder rotary compression assembly of claim 7,
the cross-sectional area of the first exhaust hole is equal to the cross-sectional area of the second exhaust hole.
9. The multi-cylinder rotary compression assembly of claim 7,
when the plurality of cylinders comprise a first cylinder and a second cylinder which are sequentially arranged along the axial direction, the plurality of cylinders sequentially comprise the first bearing, the first cylinder, the first partition plate, the second cylinder and the second bearing from top to bottom along the axial direction,
the sectional area of the first exhaust hole arranged on the first partition plate is smaller than that of the second exhaust hole arranged on the first bearing, and the sectional area of the first exhaust hole arranged on the second partition plate is larger than that of the second exhaust hole arranged on the second bearing.
10. A multi-cylinder rotary compressor, comprising:
a compressor housing;
the multi-cylinder rotary compression assembly of any one of claims 1 to 9 disposed within the compressor housing;
a motor assembly disposed at an upper portion of the compressor housing opposite to the compression assembly, the motor assembly including a stator fixedly disposed in the compressor housing and a rotor rotatably disposed in the stator, the rotor being sleeved on the rotating crankshaft,
the rotor rotates to drive the rotating crankshaft to rotate so as to drive the compression assembly to compress gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710516135.7A CN107120276B (en) | 2017-06-29 | 2017-06-29 | Multi-cylinder rotary type compression assembly and multi-cylinder rotary type compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710516135.7A CN107120276B (en) | 2017-06-29 | 2017-06-29 | Multi-cylinder rotary type compression assembly and multi-cylinder rotary type compressor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107120276A CN107120276A (en) | 2017-09-01 |
| CN107120276B true CN107120276B (en) | 2021-01-26 |
Family
ID=59719986
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710516135.7A Active CN107120276B (en) | 2017-06-29 | 2017-06-29 | Multi-cylinder rotary type compression assembly and multi-cylinder rotary type compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107120276B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111255693A (en) * | 2020-03-02 | 2020-06-09 | 珠海格力节能环保制冷技术研究中心有限公司 | Cylinder assembly, compressor and air conditioner |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101328229B1 (en) * | 2007-07-31 | 2013-11-14 | 엘지전자 주식회사 | Rotary compressor |
| CN104279163A (en) * | 2014-07-04 | 2015-01-14 | 广东美芝制冷设备有限公司 | Rotary compressor |
| CN105065274A (en) * | 2015-09-02 | 2015-11-18 | 珠海凌达压缩机有限公司 | Pump body component and compressor |
| CN105422451B (en) * | 2015-12-08 | 2017-11-17 | 广东美芝制冷设备有限公司 | The compression mechanism of rotary compressor and there is its rotary compressor |
| CN106194735B (en) * | 2016-08-29 | 2019-01-04 | 广东美芝制冷设备有限公司 | Rotary compressor and refrigerating circulatory device with it |
| CN207131574U (en) * | 2017-06-29 | 2018-03-23 | 广东美芝制冷设备有限公司 | Multi-cylinder rotary compression assembly and multi-cylinder rotary compressor |
-
2017
- 2017-06-29 CN CN201710516135.7A patent/CN107120276B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN107120276A (en) | 2017-09-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2014030436A1 (en) | Gas compressor | |
| KR101386481B1 (en) | Hermetic compressor | |
| US9004888B2 (en) | Rotary compressor having discharge groove to communicate compression chamber with discharge port near vane groove | |
| JP6045468B2 (en) | Rotary compressor | |
| CN107120276B (en) | Multi-cylinder rotary type compression assembly and multi-cylinder rotary type compressor | |
| US4457671A (en) | Hermetic type rotary compressor with silencer means | |
| CN107387414B (en) | Compression assembly and multi-cylinder rotary compressor | |
| CN116517808A (en) | Eccentric piston connecting rod assembly and four-cylinder air compressor | |
| EP2942526B1 (en) | Rotary compressor | |
| CN114151347B (en) | Cylinder, pump body structure, compressor and air conditioner | |
| JP3899203B2 (en) | Reciprocating compressor | |
| CN212838343U (en) | Compression assembly and compressor | |
| KR101418288B1 (en) | Hermetic compressor | |
| CN211449023U (en) | Rotary compressor | |
| CN216842226U (en) | Compressor and cylinder thereof | |
| CN209743111U (en) | Portable compressor | |
| CN218913163U (en) | Compressor | |
| CN220415642U (en) | Multi-cylinder compressor shell structure | |
| EP4047209A1 (en) | Compressor and refrigeration apparatus | |
| CN217761236U (en) | Compressor and refrigeration equipment | |
| CN107120275B (en) | Compression mechanism and rotary compressor | |
| CN111963430B (en) | Pump body subassembly, compressor and air conditioner | |
| CN219993873U (en) | Eccentric piston connecting rod assembly and four-cylinder air compressor | |
| CN217440294U (en) | Rotor type compressor and temperature control equipment | |
| CN210889319U (en) | Compressor assembly and refrigeration equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |