CN204140420U - Multi-cylinder rotary compressor - Google Patents
Multi-cylinder rotary compressor Download PDFInfo
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- CN204140420U CN204140420U CN201420546452.5U CN201420546452U CN204140420U CN 204140420 U CN204140420 U CN 204140420U CN 201420546452 U CN201420546452 U CN 201420546452U CN 204140420 U CN204140420 U CN 204140420U
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Abstract
The utility model discloses a kind of multi-cylinder rotary compressor, comprise: cylinder assembly, cylinder assembly comprises at least two cylinders arranged in the vertical direction, each cylinder has compression chamber, dividing plate is provided with between two adjacent cylinders, its central diaphragm is included at least two the first sub-dividing plates that the circumference of cylinder assembly is arranged, at least one at least two the first sub-dividing plates is formed with suction port, and suction port is communicated with at least one in two compression chambers up and down adjacent with the corresponding first sub-dividing plate; And bent axle, dividing plate is between adjacent two eccentric parts, and dividing plate is formed with through through hole and passes to make bent axle, the internal surface of through hole is configured for the supporting surface of supporting crankshaft.According to multi-cylinder rotary compressor of the present utility model, by arranging suction port on dividing plate, to realize the air suction function of multi-cylinder rotary compressor, thereby simplify the air suction structure of multi-cylinder rotary compressor, improve efficiency of assembling, reduce cost of production.
Description
Technical field
The utility model relates to technical field of refrigeration equipment, specifically, and particularly a kind of multi-cylinder rotary compressor.
Background technique
Multi-cylinder rotary compressor contains electric element (motor) and multiple rotary compression element in seal container, connects electric element and multiple rotary compression element with the bent axle with eccentric part.In addition, the dividing plate be arranged between rotary compression element is made up of at least two sub-dividing plates, assembles with the state of bent axle being inserted the through hole being located at fragmenting plate, then, is fixed the cylindrical of at least two sub-dividing plates by connection etc.Can easily provide such multi-cylinder rotary compressor, the dividing plate of this multi-cylinder rotary compressor is divided at least two sub-dividing plates, make to there is micro-gap between sub-dividing plate parting plane, by welding stationary barrier cylindrical, also can suppress from micro-gap leakage of refrigerant.
In the structure of multi-cylinder rotary compressor, dividing plate and bent axle are discontiguous, particularly in multicylinder compressor, because compressor unit is more, bent axle is longer, bearings at both ends is distant, bent axle middle interconnecting piece divides thinner, centre becomes bent axle weak link, be easy to cause bending deflection in the course of the work, run well and reliability from affecting compressor, simultaneously in order to ensure that dividing plate sometimes does very thick by diaphragm strength, make dividing plate functional single thus, compressor volume is not only occupied after being assembled to bent axle, but also add compressor weight.
Model utility content
The utility model is intended at least to solve one of technical problem existed in prior art.For this reason, the utility model needs to propose a kind of multi-cylinder rotary compressor, and described multi-cylinder rotary compressor has the simple advantage of structure.
According to multi-cylinder rotary compressor of the present utility model, comprise: cylinder assembly, described cylinder assembly comprises at least two cylinders arranged in the vertical direction, each described cylinder has compression chamber, dividing plate is provided with between two adjacent described cylinders, wherein said dividing plate is included at least two the first sub-dividing plates that the circumference of described cylinder assembly is arranged, at least one in described at least two the first sub-dividing plates is formed with suction port, and described suction port is communicated with at least one in two described compression chambers up and down adjacent with corresponding described first sub-dividing plate; And bent axle, described bent axle runs through described cylinder assembly, described bent axle is provided with at least two eccentric parts, each described eccentric part is positioned at corresponding described compression chamber, described dividing plate is between adjacent two described eccentric parts, described dividing plate is formed with through through hole to pass to make described bent axle, the internal surface of described through hole is configured for the supporting surface supporting described bent axle.
According to multi-cylinder rotary compressor of the present utility model, by arranging suction port on dividing plate, to realize the air suction function of multi-cylinder rotary compressor, thereby simplify the air suction structure of multi-cylinder rotary compressor, improve efficiency of assembling, reduce cost of production.
Alternatively, described dividing plate comprises two described first sub-dividing plates.
Alternatively, at least one in described two the first sub-dividing plates, there is cavity.
In an embodiment of the present utility model, not etc., described cavity is not arranged in larger one of the volume of described two the first sub-dividing plates for the volume of described two the first sub-dividing plates.
Alternatively, at least one in described at least two the first sub-dividing plates comprises at least two the second sub-dividing plates arranged in the vertical direction.
Preferably, at least one in described at least two the first sub-dividing plates comprises two described second sub-dividing plates.
Preferably, described cavity is formed towards away from another the side surface in described two the second sub-dividing plates is recessed by a part for another the side surface in described two the second sub-dividing plates of the vicinity of one of them in described two the second sub-dividing plates.
According to embodiments more of the present utility model, described suction port is all communicated with two described compression chambers up and down adjacent with corresponding described first sub-dividing plate, described suction port comprises the first inspiratory limb, the second inspiratory limb and the 3rd inspiratory limb, described first inspiratory limb runs through the periphery wall of corresponding described first sub-dividing plate, and described second inspiratory limb is all communicated with described first inspiratory limb with one end of the 3rd inspiratory limb and the other end is communicated with described upper and lower two described compression chambers respectively.
Alternatively, described cylinder has the suction port of through described cylinder sidewall.
Preferably, described cylinder assembly comprises two described cylinders.
Additional aspect of the present utility model and advantage will part provide in the following description, and part will become obvious from the following description, or be recognized by practice of the present utility model.
Accompanying drawing explanation
Above-mentioned and/or additional aspect of the present utility model and advantage will become obvious and easy understand from accompanying drawing below combining to the description of embodiment, wherein:
Fig. 1 is the sectional view of the local of multi-cylinder rotary compressor according to an embodiment of the present utility model;
Fig. 2 is the perspective view of Fig. 1 central diaphragm;
Fig. 3 is the rear view of the dividing plate in Fig. 2;
Fig. 4 is the perspective view of divider plate in Fig. 1;
Fig. 5 is the rear view of Fig. 4 central diaphragm;
Fig. 6 is the perspective view of divider plate in Fig. 1;
Fig. 7 is the rear view of Fig. 6 central diaphragm;
Fig. 8 is the perspective exploded view of Fig. 1 central diaphragm.
Reference character:
Multi-cylinder rotary compressor 100,
Cylinder assembly 110,
Cylinder 111,
Dividing plate 112, the first sub-dividing plate 1121,
Suction port 1122, the first inspiratory limb 11221, second inspiratory limb the 11222, three inspiratory limb 11223,
Through hole 1123, cavity 1124, the second sub-dividing plate 11241,
Supporting surface 1127, parting plane 1128,
Bent axle 120, eccentric part 121.
Embodiment
Be described below in detail embodiment of the present utility model, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Being exemplary below by the embodiment be described with reference to the drawings, only for explaining the utility model, and can not being interpreted as restriction of the present utility model.
In description of the present utility model, it will be appreciated that, term " " center ", " thickness ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " interior ", " outward ", " axis ", " radial direction ", orientation or the position relationship of the instruction such as " circumference " are based on orientation shown in the drawings or position relationship, only the utility model and simplified characterization for convenience of description, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as restriction of the present utility model.In addition, term " first ", " second " only for describing object, and can not be interpreted as instruction or hint relative importance or imply the quantity indicating indicated technical characteristics.Thus, be limited with " first ", the feature of " second " can express or impliedly comprise one or more these features.In description of the present utility model, except as otherwise noted, the implication of " multiple " is two or more.
In description of the present utility model, it should be noted that, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or connect integratedly; Can be mechanical connection, also can be electrical connection; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals.For the ordinary skill in the art, concrete condition the concrete meaning of above-mentioned term in the utility model can be understood.
The multi-cylinder rotary compressor 100 according to the utility model embodiment is described in detail referring to Fig. 1-Fig. 8.
As Figure 1-Figure 8, according to the multi-cylinder rotary compressor 100 of the utility model embodiment, comprising: cylinder assembly 110 and bent axle 120.
Specifically, cylinder assembly 110 is included in upper at least two cylinders 111 arranged of above-below direction (above-below direction as shown in Figure 1), each cylinder 111 has compression chamber, be provided with dividing plate 112 between two adjacent cylinders 111, dividing plate 112 be formed with through through hole 1123 and pass to make bent axle 120.The internal surface of through hole 1123 is configured for the supporting surface 1127 of supporting crankshaft 120.
Generally, because the distance between adjacent two cylinders is comparatively large, the bent axle between two adjacent cylinders needs to bear larger moment of torsion, and the bent axle if things go on like this between adjacent two cylinders easily produces fatigue failure.In order to improve the distribution of force of bent axle 120, extend the working life of bent axle 120, dividing plate 112 can be located between two adjacent cylinders 111 as bearing, now the spacing of the inner circle wall of the through hole 1123 of dividing plate 112 and the periphery wall of bent axle 120 is less, dividing plate 112 pairs of bent axles 120 have supporting role, and namely dividing plate 112 pairs of bent axles 120 play bearing effect.Bent axle 120 runs through cylinder assembly 110, and bent axle 120 is provided with at least two eccentric parts 121, and each eccentric part 121 is positioned at corresponding compression chamber, and dividing plate 112 is between adjacent two eccentric parts 121.
Dividing plate 112 is included at least two the first sub-dividing plates 1121 that the circumference of cylinder assembly 110 is arranged.In other words, dividing plate 112 can comprise multiple first sub-dividing plate 1121, and multiple first sub-dividing plate 1121 is intervally arranged along the circumferential direction of bent axle 120.In an example of the present utility model, dividing plate 112 have at least two parting planes 1128 extended along dividing plate 112 radial direction, angle between two adjacent parting planes 1128 is 0 °-180 °, and dividing plate 112 is divided into multiple first sub-dividing plate 1121 spaced apart along dividing plate 112 circumference by least two parting planes 1128.
At least one at least two the first sub-dividing plates 1121 is formed with suction port 1122, and suction port 1122 is communicated with at least one in two compression chambers up and down adjacent with the corresponding first sub-dividing plate 1121.That is, in two cylinders 111 adjacent with dividing plate 112, suction port 1122 can be communicated with in upper and lower two compression chambers, also all can be communicated with upper and lower two compression chambers.Such as, when suction port 1122 is communicated with in upper and lower two compression chambers, the cylinder 111 at the compression chamber place be communicated with suction port 1122 is adjacent with the first sub-dividing plate 1121 being provided with suction port 1122; When suction port 1122 is all communicated with upper and lower two compression chambers, the first sub-dividing plate 1121 being provided with suction port 1122 is folded between two cylinders 111 at the compression chamber place be communicated with suction port 1122.
Alternatively, cylinder assembly 110 comprises (above-below direction as shown in Figure 1) arrangement along the vertical direction of two cylinders, 111, two cylinders 111, and dividing plate 112 is folded between upper and lower two cylinders 111.Such as, in example as shown in Figure 1-Figure 3, be provided with dividing plate 112 between upper and lower two cylinders 111, suction port 1122 can be located in multiple first sub-dividing plate 1121, suction port 1122 is communicated with these upper and lower two cylinders 111, thinks that these upper and lower two cylinders 111 provide refrigerant.In addition, by arranging suction port 1122 on dividing plate 112, the structure of multi-cylinder rotary compressor 100 can be simplified, reducing cost of production.
It should be noted that, suction port 1122 also with for compressor 100 provides the device of refrigerant to be communicated with, and such as suction port 1122 can be communicated with liquid-storage container (scheming not shown).Refrigerant can be entered in compression chamber by suction port 1122, thus achieves the breathing process of compressor 100.Thus, suction port 1122 can as the air suction structure of multi-cylinder rotary compressor 100, for compression chamber provides refrigerant.Compared with conventional art, dividing plate 112 arranges suction port 1122 air suction structure of multi-cylinder rotary compressor 100 can be made more to simplify, and then improve efficiency of assembling.In addition, suction port 1122 can also be multiple, and multiple suction port 1122 can be distributed on same first sub-dividing plate 1121, also can be distributed on different sub-dividing plates 112.Thus, the gettering efficiency of multi-cylinder rotary compressor 100 can be improved.
According to the multi-cylinder rotary compressor 100 of the utility model embodiment, by arranging suction port 1122 on dividing plate 112, to realize the air suction function of multi-cylinder rotary compressor 100, thereby simplify the air suction structure of multi-cylinder rotary compressor 100, improve efficiency of assembling, reduce cost of production.
As shown in Figure 6, Figure 7, according to an embodiment of the present utility model, suction port 1122 is all communicated with two compression chambers up and down adjacent with the corresponding first sub-dividing plate 1121.In other words, the suction port 1122 be folded on the dividing plate 112 between two adjacent cylinders 111 is all communicated with the compression chamber of these two cylinders 111.Thus, the suction port 1122 on dividing plate 112 can provide refrigerant for upper and lower two compression chambers, and then improves multi-cylinder rotary compressor 100 gettering efficiency, thus improves the working efficiency of multi-cylinder rotary compressor 100 when frequency conversion or low frequency.
As shown in Figure 2 and Figure 3, in an optional example of the present utility model, suction port 1122 can comprise the first inspiratory limb 11221, second inspiratory limb 11222 and the 3rd inspiratory limb 11223.Particularly, the first inspiratory limb 11221 runs through the periphery wall of the first corresponding sub-dividing plate 1121, and the second inspiratory limb 11222 is all communicated with the first inspiratory limb 11221 with one end of the 3rd inspiratory limb 11223 and the other end is communicated with upper and lower two compression chambers respectively.In other words, one end of the first inspiratory limb 11221 provides the device of refrigerant to be communicated with for compressor 100, and such as the first inspiratory limb 11221 can be communicated with liquid-storage container.The other end of the first inspiratory limb 11221 is communicated with the second inspiratory limb 11222 one end with the 3rd inspiratory limb 11223 respectively, and the second inspiratory limb 11222 is communicated with the compression chamber of upper and lower two cylinders 111 respectively with the other end of the 3rd inspiratory limb 11223.Thus, the structure of dividing plate 112 can be simplified further, reduce the manufacturing procedure of dividing plate 112, improve manufacturing efficiency.
In another embodiment of the present utility model, cylinder has the suction port (scheming not shown) of through cylinder.Suction port can be communicated with liquid-storage container by suction tude, with directly for compression chamber provides refrigerant.That is, suction port and suction port 1122 all can as air suction structure for compression chamber provide refrigerant.Compared with existing multi-cylinder rotary compressor, multi-cylinder rotary compressor 100 of the present utility model has two kinds of different air suction structures, refrigerant can enter in compression chamber by suction port and suction port 1122, which thereby enhance multi-cylinder rotary compressor 100 gettering efficiency, and then improve the working efficiency of multi-cylinder rotary compressor 100 when frequency conversion or low frequency.
In optional embodiments more of the present utility model, dividing plate 112 comprises two the first sub-dividing plates 1121.The assembly process of dividing plate 112 can be simplified thus, improve efficiency of assembling.Be understandable that, particular determination is not done to the shape of multiple first sub-dividing plate 1121, such as, in example as shown in Figure 3, dividing plate 112 has two parting planes 1128, angle between two parting planes 1128 can be 120 °, and dividing plate 112 is divided into two the first sub-dividing plates 1121 distributed along dividing plate 112 circumference by two parting planes 1128.
For alleviating the weight of dividing plate 112, in example as Figure 4-8, at least one in two the first sub-dividing plates 1121, there is cavity 1124.Be understandable that, the shape of cavity 1124 can be determined as the case may be, and such as, in the example shown in Fig. 4 and Fig. 6, cavity 1124 has different shapes.
In addition, also it should be noted that, when multi-cylinder rotary compressor 100 is in running order, gassy (being such as air) in cavity 1124, compared with making the material of dividing plate 112, the thermal conductivity of air is less, and dividing plate 112 can be made thus to have heat insulation, cooling effect preferably.Similarly, compared with making the material of dividing plate 112, the velocity of propagation of sound in cavity 1124 is less, thus serves the effect of noise reduction, significantly reduces the operating noise of multi-cylinder rotary compressor 100 thus, improves the usability of product.
In example as shown in Figure 5, the volume of two the first sub-dividing plates 1121 can not wait, and cavity 1124 is arranged in larger one of the volume of two the first sub-dividing plates 1121.Thus, the larger cavity of volume 1124 can be set on the first sub-dividing plate 1121 that volume is larger, thus the weight of dividing plate 112 can be alleviated further, improve heat insulation, cooling and the effect of noise reduction of dividing plate 112.
Here, suction port 1122 can be positioned on same first sub-dividing plate 1121 with cavity 1124, also can be positioned on the first different sub-dividing plates 1121.
As shown in Figure 8, for convenience of processing cavity 1124 on dividing plate 112, in an alternate exemplary of the present utility model, at least one at least two the first sub-dividing plates 1121 comprises at least two the second sub-dividing plates 11241 arranged in the vertical direction.That is, one at least two the first sub-dividing plates 1121 multiple second sub-dividing plates 11241 comprised along the arrangement of dividing plate 112 axial direction.
Preferably, at least one at least two the first sub-dividing plates 1121 comprises two the second sub-dividing plates 11241.Can manufacturing procedure be simplified thus, enhance productivity.Further, cavity 1124 is formed towards away from another the side surface in two the second sub-dividing plates 11241 is recessed by a part for another the side surface in vicinity two the second sub-dividing plates 11241 of one of them in two the second sub-dividing plates 11241.In other words, one in two adjacent the second sub-dividing plates 11241 is provided with the depressed part of opening towards another the second sub-dividing plate 11241, and another second sub-dividing plate 11241 is in order to block opening.In course of working, can only process in adjacent two the second sub-dividing plates 11241.Thus, course of working can be simplified further, enhance productivity.
In the description of this specification, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " illustrative examples ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present utility model or example.In this manual, identical embodiment or example are not necessarily referred to the schematic representation of above-mentioned term.And the specific features of description, structure, material or feature can combine in an appropriate manner in any one or more embodiment or example.
Although illustrate and described embodiment of the present utility model, those having ordinary skill in the art will appreciate that: can carry out multiple change, amendment, replacement and modification to these embodiments when not departing from principle of the present utility model and aim, scope of the present utility model is by claim and equivalents thereof.
Claims (10)
1. a multi-cylinder rotary compressor, is characterized in that, comprising:
Cylinder assembly, described cylinder assembly comprises at least two cylinders arranged in the vertical direction, each described cylinder has compression chamber, dividing plate is provided with between two adjacent described cylinders, wherein said dividing plate is included at least two the first sub-dividing plates that the circumference of described cylinder assembly is arranged, at least one in described at least two the first sub-dividing plates is formed with suction port, and described suction port is communicated with at least one in two described compression chambers up and down adjacent with corresponding described first sub-dividing plate; With
Bent axle, described bent axle runs through described cylinder assembly, described bent axle is provided with at least two eccentric parts, each described eccentric part is positioned at corresponding described compression chamber, described dividing plate is between adjacent two described eccentric parts, described dividing plate is formed with through through hole to pass to make described bent axle, the internal surface of described through hole is configured for the supporting surface supporting described bent axle.
2. multi-cylinder rotary compressor according to claim 1, is characterized in that, described dividing plate comprises two described first sub-dividing plates.
3. multi-cylinder rotary compressor according to claim 2, is characterized in that, has cavity at least one in described two the first sub-dividing plates.
4. multi-cylinder rotary compressor according to claim 3, is characterized in that, not etc., described cavity is not arranged in larger one of the volume of described two the first sub-dividing plates for the volume of described two the first sub-dividing plates.
5. multi-cylinder rotary compressor according to claim 3, is characterized in that, at least one in described at least two the first sub-dividing plates comprises at least two the second sub-dividing plates arranged in the vertical direction.
6. multi-cylinder rotary compressor according to claim 5, is characterized in that, at least one in described at least two the first sub-dividing plates comprises two described second sub-dividing plates.
7. multi-cylinder rotary compressor according to claim 6, it is characterized in that, described cavity is formed towards away from another the side surface in described two the second sub-dividing plates is recessed by a part for another the side surface in described two the second sub-dividing plates of the vicinity of one of them in described two the second sub-dividing plates.
8. the multi-cylinder rotary compressor according to any one of claim 1-7, it is characterized in that, described suction port is all communicated with two described compression chambers up and down adjacent with corresponding described first sub-dividing plate, described suction port comprises the first inspiratory limb, the second inspiratory limb and the 3rd inspiratory limb, described first inspiratory limb runs through the periphery wall of corresponding described first sub-dividing plate, and described second inspiratory limb is all communicated with described first inspiratory limb with one end of the 3rd inspiratory limb and the other end is communicated with described upper and lower two described compression chambers respectively.
9. multi-cylinder rotary compressor according to claim 1, is characterized in that, described cylinder has the suction port of through described cylinder sidewall.
10. multi-cylinder rotary compressor according to claim 1, is characterized in that, described cylinder assembly comprises two described cylinders.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420546452.5U CN204140420U (en) | 2014-09-22 | 2014-09-22 | Multi-cylinder rotary compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420546452.5U CN204140420U (en) | 2014-09-22 | 2014-09-22 | Multi-cylinder rotary compressor |
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| Publication Number | Publication Date |
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| CN204140420U true CN204140420U (en) | 2015-02-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420546452.5U Active CN204140420U (en) | 2014-09-22 | 2014-09-22 | Multi-cylinder rotary compressor |
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| CN (1) | CN204140420U (en) |
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