CN220378477U - Compressor and refrigeration equipment - Google Patents
Compressor and refrigeration equipment Download PDFInfo
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- CN220378477U CN220378477U CN202321135408.0U CN202321135408U CN220378477U CN 220378477 U CN220378477 U CN 220378477U CN 202321135408 U CN202321135408 U CN 202321135408U CN 220378477 U CN220378477 U CN 220378477U
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- compressor
- lower bearing
- sealing ring
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- 238000005057 refrigeration Methods 0.000 title claims abstract description 10
- 238000007789 sealing Methods 0.000 claims abstract description 104
- 238000007906 compression Methods 0.000 claims abstract description 33
- 230000006835 compression Effects 0.000 claims abstract description 32
- 239000007788 liquid Substances 0.000 claims abstract description 15
- 238000003860 storage Methods 0.000 claims abstract description 15
- 238000000034 method Methods 0.000 claims abstract description 11
- 230000002093 peripheral effect Effects 0.000 claims abstract description 6
- 238000003466 welding Methods 0.000 description 21
- 230000000694 effects Effects 0.000 description 6
- 238000009434 installation Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 238000001125 extrusion Methods 0.000 description 3
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000002265 prevention Effects 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000007667 floating Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 239000003507 refrigerant Substances 0.000 description 2
- 239000000741 silica gel Substances 0.000 description 2
- 229910002027 silica gel Inorganic materials 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000006748 scratching Methods 0.000 description 1
- 230000002393 scratching effect Effects 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
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Abstract
The utility model discloses a compressor and refrigeration equipment, wherein the compressor comprises a shell, a lower bearing and a sealing ring, wherein the lower bearing is arranged in the shell, a liquid storage cavity positioned below the lower bearing, a cylinder positioned above the lower bearing and a motor are arranged in the shell, the cylinder is connected with the motor, the peripheral surface of the lower bearing is provided with a ring groove, or the upper surface of the lower bearing is provided with a notch groove, and the notch groove extends along the circumferential direction of the lower bearing; the sealing ring is arranged on the ringA groove or said notch groove; the wire diameter of the sealing ring is D 2 The diameter R of the inner ring of the ring groove and the notch groove 2 The diameter of the cavity of the shell is R 0 The method comprises the steps of carrying out a first treatment on the surface of the The compression ratio of the sealing ring is 1- (R) 0 ‑R 2 )/2D 2 The 1- (R) 0 ‑R 2 )/2D 2 The range of (2) is: 0.1 is less than or equal to 1- (R) 0 ‑R 2 )/2D 2 Less than or equal to 0.35. The technical scheme of the utility model not only can increase the tightness, but also can increase the service life of the sealing ring.
Description
Technical Field
The utility model relates to the technical field of compressors, in particular to a compressor and refrigeration equipment.
Background
In general, a compressor is a part of a refrigeration apparatus, and is a device for pressurizing a refrigerant to adapt the pressure and temperature of the refrigerant to a specific purpose. The refrigerating equipment comprises a compressor, a condenser, an expansion device and an evaporator, and the components are connected with each other to form a closed circulation system.
The refrigerating apparatus is generally installed in an electric appliance such as an air conditioner or a refrigerator, so as to maintain indoor comfort or to ensure freshness of foods by using cool air and hot air formed in a condenser and an evaporator.
However, the tightness between the lower bearing and the shell of the compressor in the market at present is poor, so that the tightness between the liquid storage cavity and the compression cavity is poor.
Disclosure of Invention
The main object of the present utility model is to provide a compressor aimed at improving the tightness between the lower bearing and the casing.
In order to achieve the above object, the present utility model provides a compressor comprising:
a housing;
the lower bearing is arranged in the shell, a liquid storage cavity positioned below the lower bearing, a cylinder and a motor are arranged in the shell, the cylinder is positioned above the lower bearing, the cylinder is connected with the motor, an annular groove is formed in the peripheral surface of the lower bearing, or a notch groove is formed in the upper surface of the lower bearing, and the notch groove extends along the circumferential direction of the lower bearing; and
the sealing ring is arranged in the annular groove or the notch groove;
the wire diameter of the sealing ring is D 2 The diameter R of the inner ring of the ring groove and the notch groove 2 The diameter of the cavity of the shell is R 0 The method comprises the steps of carrying out a first treatment on the surface of the The compression ratio of the sealing ring is 1- (R) 0 -R 2 )/2D 2 The 1- (R) 0 -R 2 )/2D 2 The range of (2) is: 0.1 is less than or equal to 1- (R) 0 -R 2 )/2D 2 ≤0.35。
Optionally, the diameter of the inner ring of the sealing ring is D 1 The elongation of the sealing ring is (R 2 -D 1 )/D 1 The (R) 2 -D 1 )/D 1 Is in the range of 0 < (R) 2 -D 1 )/D 1 ≤0.05。
Optionally, the height of the ring groove or the notch groove is h, the diameter of the outer ring surface of the lower bearing is R 1 The axial clearance between the sealing ring and the ring groove or the axial clearance between the sealing ring and the notch groove is h/D 2 The h/D 2 In the range of 1 < h/D 2 < 1.6; and/or
The radial clearance between the sealing ring and the shell and the radial clearance between the sealing ring and the shell are D 2 /[(R 1 -R 2 )/2]The D is 2 /[(R 1 -R 2 )/2]In the range of 1 < D 2 /[(R 1 -R 2 )/2]＜1.6。
Optionally, the outer peripheral surface of the sealing ring is provided with a plurality of annular sealing convex parts, and a plurality of annular sealing convex parts are sequentially stacked along the height direction of the sealing ring.
Optionally, a plurality of ring grooves or notch grooves are provided.
Optionally, a chamfer is provided on the notch wall of the ring groove or the notch groove.
Optionally, the chamfer width of the chamfer is r, and the range of r is 0.1mm < r < 1.2mm.
Optionally, the cross-sectional shape of the sealing ring is circular, star-shaped, oval or square.
Optionally, the seal ring is in interference fit with the housing.
Optionally, the cylinder is provided with a welding position, and the vertical distance from the center of the sealing ring to the welding position is S 1 The S is 1 S is more than or equal to 10mm 1 。
The utility model also provides refrigeration equipment comprising the compressor.
The compressor at least comprises the following beneficial effects:
according to the technical scheme, the shell, the lower bearing and the sealing ring are adopted, the lower bearing is arranged in the shell, and the shell is internally provided with a sealing ring which is positioned below the lower bearingThe liquid storage cavity is connected with the motor, the outer peripheral surface of the lower bearing is provided with a ring groove, or the upper surface of the lower bearing is provided with a notch groove which extends along the circumferential direction of the lower bearing; the sealing ring is arranged in the annular groove or the notch groove; the wire diameter of the sealing ring is D 2 Inner ring diameter R of ring groove and notch groove 2 The diameter of the cavity of the shell is R 0 The method comprises the steps of carrying out a first treatment on the surface of the The compression ratio of the sealing ring is 1- (R) 0 -R 2 )/2D 2 ，1-(R 0 -R 2 )/2D 2 The range of (2) is: 0.1 is less than or equal to 1- (R) 0 -R 2 )/2D 2 Less than or equal to 0.35; specifically, the compressor also comprises a compression cavity which is arranged above the lower bearing and is communicated with the liquid storage cavity. Line diameter D' after seal ring installation, static seal compression ratio= (D) 2 -D’)/D 2 *100%; after the sealing ring is installed, the diameter of the inner ring surface of the sealing ring is equal to the diameter R of the inner ring of the ring groove or the notch groove of the lower bearing 2 The diameter of the outer ring surface of the sealing ring is consistent with the diameter R of the cavity of the shell 0 In agreement, the seal ring wire diameter D' = (R) 0 -R 2 ) 2; therefore, the compression ratio of the seal ring 300 is 1- (R) 0 -R 2 )/2D 2 It can be appreciated that the range of compression ratios is: 0.1 is less than or equal to 1- (R) 0 -R 2 )/2D 2 In the range of less than or equal to 0.35, the sealing ring has excellent sealing performance, the sealing performance of the compression cavity and the liquid storage cavity can be improved, and if the compression ratio of the sealing ring is 1- (R) 0 -R 2 )/2D 2 If the pressure is less than 0.1, the sealing effect cannot be achieved, and leakage is easy to occur under some high-pressure working conditions; if the compression ratio of the sealing ring is 1- (R) 0 -R 2 )/2D 2 If more than 0.35, excessive compression exists, which affects the service life of the sealing ring; the utility model can not only increase the tightness, but also increase the service life of the sealing ring.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of a compressor according to an embodiment of the present utility model;
FIG. 2 is an enlarged view of a portion of FIG. 1 at A;
FIG. 3 is a partial enlarged view at B in FIG. 2;
FIG. 4 is a schematic view of the compressor housing, lower bearing and seal ring;
FIG. 5 is a schematic view of a compressor in partial cross-section;
FIG. 6 is a schematic view of the structure of the lower bearing of the compressor;
fig. 7 is a schematic structural view of a seal ring of a compressor.
Reference numerals illustrate:
| reference numerals | Name of the name | Reference numerals | Name of the name |
| 100 | Shell body | 210 | Annular groove |
| 110 | Cylinder | 220 | Notch groove |
| 120 | Liquid storage cavity | 230 | Chamfering tool |
| 130 | Compression chamber | 300 | Sealing ring |
| 140 | Motor with a motor housing | 310 | Annular sealing protrusion |
| 200 | Lower bearing |
The achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present utility model are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly.
In the present utility model, unless specifically stated and limited otherwise, the terms "connected," "affixed," and the like are to be construed broadly, and for example, "affixed" may be a fixed connection, a removable connection, or an integral body; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
In addition, if there is a description of "first", "second", etc. in the embodiments of the present utility model, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" as it appears throughout includes three parallel schemes, for example "A and/or B", including the A scheme, or the B scheme, or the scheme where A and B are satisfied simultaneously. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.
The utility model provides a compressor.
Referring to fig. 1 to 6, in an embodiment of the present utility model, the compressor includes a housing 100, a lower bearing 200 and a sealing ring 300, the lower bearing 200 is disposed in the housing 100, a liquid storage chamber 120 below the lower bearing 200, and a cylinder 110 and a motor 140 above the lower bearing 200 are disposed in the housing 100, the cylinder 110 is connected with the motor 140, an annular groove 210 is disposed at an outer circumferential surface of the lower bearing 200, orThe upper surface of the bearing 200 is provided with a notch groove 220, and the notch groove 220 extends along the circumferential direction of the lower bearing 200; the seal ring 300 is arranged in the ring groove 210 or the notch groove 220; the diameter of the seal ring 300 is D 2 Inner ring diameter R of ring groove 210 and notch groove 220 2 The housing 100 has a cavity diameter R 0 The method comprises the steps of carrying out a first treatment on the surface of the The compression ratio of the seal ring 300 is 1- (R) 0 -R 2 )/2D 2 ，1-(R 0 -R 2 )/2D 2 The range of (2) is: 0.1 is less than or equal to 1- (R) 0 -R 2 )/2D 2 ≤0.35。
Specifically, the compressor further includes a compression chamber 130, and the compression chamber 130 is disposed above the lower bearing 200 and communicates with the liquid storage chamber 120. Line diameter D' after installation of seal ring 300, static seal compression ratio= (D) 2 -D’)/D 2 *100%; after the seal ring 300 is installed, the diameter of the inner ring surface of the seal ring 300 is equal to the diameter R of the ring groove 210 or the notch groove 220 of the lower bearing 200 2 The diameter of the outer ring surface of the sealing ring 300 is consistent with the diameter R of the cavity of the shell 100 0 Consistent, seal ring 300 wire diameter D' = (R) after installation 0 -R 2 ) 2; therefore, the compression ratio of the seal ring 300 is 1- (R) 0 -R 2 )/2D 2 It can be appreciated that the range of compression ratios is: 0.1 is less than or equal to 1- (R) 0 -R 2 )/2D 2 Within 0.35 or less, the sealing ring 300 has excellent sealing property, and can increase the sealing property of the compression chamber 130 and the liquid storage chamber 120, if the compression ratio of the sealing ring 300 is 1- (R) 0 -R 2 )/2D 2 If the pressure is less than 0.1, the sealing effect cannot be achieved, and leakage is easy to occur under some high-pressure working conditions; if the compression ratio of the sealing ring 300 is 1- (R) 0 -R 2 )/2D 2 Over-compression exists, affecting the working life of seal ring 300, > 0.35; it can be seen that the present utility model not only increases the tightness but also increases the service life of the seal ring 300.
D is the same as 2 Is the original uncompressed or stretched wire diameter of seal ring 300. In the present embodiment, the seal ring 300 is configured as a circular seal ring, D 2 Refers to the cross-sectional diameter of a circular seal ring that is not compressed or stretched; in the second embodiment, the seal ring 300 is configured as a square seal ring，D 2 Refers to the square seal ring not being compressed or stretched in side length, and in the third embodiment, when the seal ring 300 is configured as a seal ring with a symmetrical star-shaped cross section, D 2 Refers to the maximum wall thickness of the star seal ring that is not compressed or stretched, but when the thickness and width of the cross-section of the seal ring 300 are unequal, such as a seal ring having an elliptical or rectangular cross-section, D is calculated in calculating the axial clearance 2 Refers to the uncompressed or stretched thickness of the seal ring 300; in calculating the radial gap, D 2 Refers to the width of the seal ring 300 that is not compressed or stretched.
Further, the side walls of the housing 100 are integrally formed, so that the welding process can be reduced, and in the post-maintenance process, only the leaked housing needs to be subjected to rust prevention treatment, so that the area required to be subjected to rust prevention treatment is reduced, and the production cost related to rust prevention operation is reduced.
Further, in the present embodiment, the side wall of the housing 100 is integrally formed by stamping, although the present utility model is not limited thereto, and in other embodiments, the side wall of the housing 100 may be integrally formed by welding, etc., and the processes of stamping, integrally forming, welding, etc. are mature and simple, stable and reliable, and the processing cost is low.
Optionally, the inner ring diameter of seal ring 300 is D 1 The elongation of the seal ring 300 is (R 2 -D 1 )/D 1 ，(R 2 -D 1 )/D 1 Is in the range of 0 < (R) 2 -D 1 )/D 1 Less than or equal to 0.05; it can be understood that, as the inner diameter of the seal ring 300 is stretched, the wire diameter thereof is gradually reduced, and under the condition of a certain external pressure, the smaller the wire diameter is, the larger the pressure applied to the seal ring 300 per unit sectional area is; through verification, when the inner diameter of the sealing ring 300 is stretched by more than 5%, the wire diameter is reduced by more than 3.5%, the pressure born by the sealing ring 300 is obviously increased, and failures such as excessive compression and the like are easily caused, namely, the elongation of the sealing ring 300 is in the range, the sealing performance is good, and the sealing performance of the compression cavity 130 and the liquid storage cavity 120 can be improved; if the elongation is (R) 2 -D 1 )/D 1 > 0.05, which affects the working life of the seal ring 300, if (R 2 -D 1 )/D 1 < 0, a reduction in the cross-sectional size of the seal ring 300 may result, which may affect the sealability of the seal ring 300.
Moreover, set up sealing washer 300 between lower bearing 200 and casing 100, through the butt force between lower bearing 200 and the casing 100, press sealing washer 300 to be connected lower bearing 200 and casing 100, welding installation process for traditional technology is simpler, can save the installation cost, thereby reduce the manufacturing cost of compressor, moreover, this kind of connected mode need not carry out destructive connection to casing 100, the problem of revealing that the welding appears has been avoided, moreover, this kind of connected mode can guarantee the axiality of lower bearing 200 and casing 100, thereby avoid causing problems such as vibration noise, it is clear that this technical scheme not only can avoid producing to reveal in the connection process of lower bearing 200 and casing 100, can also avoid causing vibration noise and reduction in production cost.
Inner ring diameter D of seal ring 300 1 Refers to the distance between the closest opposing sidewalls.
Optionally, in an embodiment, the height of the ring groove 210 or the notch groove 220 is h, and the diameter of the outer ring surface of the lower bearing 200 is R 1 The axial clearance between the seal ring 300 and the ring groove 210 or the axial clearance between the seal ring 300 and the notch groove 220 is h/D 2 ，h/D 2 In the range of 1 < h/D 2 < 1.6; it will be appreciated that after the sealing ring 300 is installed, the sealing ring 300 will be subjected to pressure of the compression chamber 130, and a certain deformation will occur in the axial direction of the sealing ring 300, and a certain space is ensured between the sealing ring 300 and the ring groove 210 or between the sealing ring 300 and the notch groove 220 to accommodate the axial deformation of the sealing ring 300, so that the sealing performance is optimal within the range, and not only the deformation of the sealing ring 300 can be accommodated, but also the floating of the sealing ring 300 in the axial direction can be limited.
If the axial clearance h/D 2 If < 1, the axial gap between the seal ring 300 and the ring groove 210 or between the seal ring 300 and the notch groove 220 is too small to accommodate the deformation, the seal ring 300 will be damaged, and under some working conditions with higher temperature, the seal ring 300 is more expanded by heating, which may cause insufficient axial space of the seal ring 300, and the seal ring 300 will generateRaw extrusion, the service life is greatly reduced; if the axial clearance h/D 2 If the axial clearance between the seal ring 300 and the ring groove 210 or between the seal ring 300 and the notch groove 220 is too large, the seal ring 300 can float in the axial direction, the seal ring 300 cannot be well fixed, the sealing performance is affected, meanwhile, the height of the ring groove 210 or the height dimension of the notch groove 220 is too large, the rigidity of the lower bearing 200 is affected, the lower bearing 200 is easy to deform, and the seal ring 300 floats in the ring groove 210 or the notch groove 220, so that abrasion is caused, and the service life is greatly reduced.
Optionally, in an embodiment, the radial clearance between the seal ring 300 and the housing 100, and the radial clearance between the seal ring 300 and the housing 100 is D 2 /[(R 1 -R 2 )/2]，D 2 /[(R 1 -R 2 )/2]In the range of 1 < D 2 /[(R 1 -R 2 )/2]< 1.6. Similarly, after the sealing ring 300 is installed, the sealing ring 300 is subjected to pressure of the compression chamber 130, the sealing ring 300 also deforms to a certain extent in the radial direction, a certain space is ensured between the sealing ring 300 and the housing 100 to accommodate the radial deformation amount of the sealing ring 300, the sealing ring 300 deforms under the action of medium pressure in the ring groove 210 or the notch groove 220, and the extruded part of the ring groove 210 or the notch groove 220 of the sealing ring 300 flows to a gap position, so that the sealing effect is achieved. That is, as the pressure increases, the seal ring 300 deforms more and the stress increases, resulting in a tighter seal. In the event that the seal ring 300 is subjected to high pressure, it may be pushed into the gap, causing seal failure. The magnitude of the extrusion limit depends on the hardness of the seal ring 300, the operating pressure, and the gap between the ring groove 210 and the seal ring 300. The radial clearance between the seal ring 300 and the housing 100 is maintained at 1 < D 2 /[(R 1 -R 2 )/2]In the range of < 1.6, not only the sealing performance is optimal, but also the deformation amount of the seal ring 300 can be accommodated, and the floating of the seal ring 300 in the radial direction can be restricted. If D 2 /[(R 1 -R 2 )/2]If the compression of the sealing ring 300 is larger than 1.6, extrusion is easy to occur, so that failure is caused; if D 2 /[(R 1 -R 2 )/2]If the ratio is less than 1, the matching size is not easy to process, the cost is increased, and the safety can be causedDifficult to install; moreover, if the radial clearance between the seal ring 300 and the housing 100 is small, the seal ring 300 may have insufficient compression, and the sealing performance may not be ensured, and the sealing performance may be degraded.
Alternatively, the outer peripheral surface of the seal ring 300 is provided with a plurality of annular seal projections 310, and the plurality of annular seal projections 310 are stacked one on another in the height direction of the seal ring 300. Specifically, the annular sealing convex portion 310 is in abutting engagement with the housing 100, and the sealing ring 300 is provided with a plurality of annular sealing convex portions 310 corresponding to a plurality of sealing layers, which can increase sealability. Of course, the present utility model is not limited to this, and in other embodiments, the sealing ring 300 may not be provided with a plurality of annular sealing protrusions 310, and the outer ring surface of the sealing ring 300 may be in contact with the inner wall surface of the housing 100.
It should be noted that, the plurality of annular sealing protrusions 310 are disposed, and the annular groove 210 or the notch groove 220 is provided with a plurality of mutually communicated sealing grooves corresponding to the annular sealing protrusions 310, so that the matching tightness of the liquid storage cavity 120 and the compression cavity 130 can be increased, thereby increasing the tightness of the sealing ring 300.
Optionally, a plurality of ring grooves 210 and/or notch grooves 220 are provided, and a sealing ring 300 is provided corresponding to a ring groove 210 and/or notch groove 220 of the compressor, specifically, one, two, or three of the ring grooves 210 and/or notch grooves 220 may be provided, and the specific number of the notch grooves 220 of the ring groove 210 may be determined according to the volume and the width of the casing 100, the pressure difference between the two sides of the compression chamber 130 and the liquid storage chamber 120, and the like, and specific limitations are not made on the specific number of the ring grooves 210 and/or notch grooves 220 and the sealing ring 300.
Optionally, the ring groove 210 or the notch groove 220 is provided with a plurality of grooves; that is, at least two grooves 220 are provided in the ring groove 210, and at least two sealing rings 300 are provided, so that the sealing performance of the liquid storage chamber 120 and the compression chamber 130 can be improved.
Optionally, the notch mouth wall of the ring groove 210 or the notch groove 220 is provided with a chamfer 230; it will be appreciated that this may facilitate installation of the seal ring 300 into the ring groove 210 or the notch groove 220, and also avoid the sharp included angle of the notch of the ring groove 210 or the notch groove 220, scratching the operator or the seal ring 300. Of course, the present utility model is not limited thereto, and in other embodiments, the chamfer 230 may not be provided on the notch wall of the ring groove 210 or the notch groove 220.
Alternatively, chamfer 230 has a chamfer 230 width r in the range of 0.1mm < r < 1.2mm. Within this range, chamfer 230 is both convenient to install and does not affect the tightness of seal ring 300; it will be appreciated that the guiding effect is not achieved when r < 0.1mm, but the tightness and mounting stability of the seal ring 300 are affected when r > 1.2mm.
Alternatively, the cross-sectional shape of the seal ring 300 is circular, star-shaped, oval-shaped, or square; specifically, in one embodiment, the cross-sectional shape of the seal ring 300 may be circular. In the second embodiment, the cross-sectional shape of the seal ring 300 may be star-shaped, and the cross-sectional shape of the seal ring 300 is not particularly limited herein.
Alternatively, the material of the seal ring 300 is configured as rubber, because the rubber not only has excellent elastic deformability, but also is not easily deflated, has excellent sealability, and furthermore, the rubber also has excellent wear resistance, so that the service life of the seal ring 300 can be increased. Of course, the present utility model is not limited thereto, and in other embodiments, the material of the sealing ring 300 may be silica gel.
Alternatively, the sealing ring 300 is interference-fitted with the housing 100, because the interference-fitted mounting manner is simple and no additional fasteners are required, so that the interference-fitted mounting manner can increase the mounting efficiency of the connection of the lower bearing 200, the sealing ring 300 and the housing 100. Of course, the present utility model is not limited thereto, and in other embodiments, the sealing ring 300 may abut against the housing 100.
Referring to fig. 5, alternatively, the cylinder 110 is provided with a welding position, and the vertical distance from the center of the seal ring 300 to the welding position is S 1 ，S 1 S is more than or equal to 10mm 1 The method comprises the steps of carrying out a first treatment on the surface of the In this way, the welding of the cylinder 110 can be ensured not to affect the connection position of the shell 100 and the lower bearing 200, and the situation that the connection position is deformed, so that the tightness between the lower bearing 200 and the shell 100 is poor is avoided; since the seal ring 300 is made of elastic material (e.g. silica gel, rubber, etc.), if S 1 When welding, the sealing ring 300 is heated to fail due to the high temperature of the welding position.
Further, subject to the compressor housing 100, generally S 1 And 50mm or less, so that not only the effect of the welding position on the seal ring 300 but also the effect on the space layout in the housing 100 can be avoided.
Further, the cylinder 110 and the lower bearing 200 are arranged in the shell 100, the cylinder 110 is positioned between the lower bearing 200 and the upper bearing, the cylinder 110 and the shell 100 are connected in a three-point welding mode, and the sealing ring 300 is arranged between the lower bearing 200 and the shell 100; the three-point welding is the connection of three welding points performed on the shell 100 of the compressor, namely, the cylinder 110 is provided with three welding positions, the welding positions are welded with the shell 100, the three-point welding can improve the stability and the reliability of the compressor, the three-point welding enables the shell 100 to be tightly combined with the cylinder 110, the problems of looseness, displacement and the like of the cylinder 110 in operation are avoided, the vibration amplitude is reduced, the vibration and the noise of a pipeline are effectively reduced, the working stability of the compressor is improved, and the service life of a machine is prolonged. Therefore, vibration and noise can be effectively reduced by three-point welding of the cylinder 110 and the housing 100, improving the working stability and life of the compressor.
The utility model also provides a refrigeration device which comprises a compressor, wherein the specific structure of the compressor refers to the embodiment, and as the refrigeration device adopts all the technical schemes of all the embodiments, the refrigeration device at least has all the beneficial effects brought by the technical schemes of the embodiments, and the description is omitted herein.
The foregoing description is only of the optional embodiments of the present utility model, and is not intended to limit the scope of the utility model, and all the equivalent structural changes made by the description of the present utility model and the accompanying drawings or the direct/indirect application in other related technical fields are included in the scope of the utility model.
Claims (11)
1. A compressor, comprising:
a housing;
the lower bearing is arranged in the shell, a liquid storage cavity positioned below the lower bearing, a cylinder and a motor are arranged in the shell, the cylinder is positioned above the lower bearing, the cylinder is connected with the motor, an annular groove is formed in the peripheral surface of the lower bearing, or a notch groove is formed in the upper surface of the lower bearing, and the notch groove extends along the circumferential direction of the lower bearing; and
the sealing ring is arranged in the annular groove or the notch groove;
the wire diameter of the sealing ring is D 2 The diameter R of the inner ring of the ring groove and the notch groove 2 The diameter of the cavity of the shell is R 0 The method comprises the steps of carrying out a first treatment on the surface of the The compression ratio of the sealing ring is 1- (R) 0 -R 2 )/2D 2 The 1- (R) 0 -R 2 )/2D 2 The range of (2) is: 0.1 is less than or equal to 1- (R) 0 -R 2 )/2D 2 ≤0.35。
2. The compressor of claim 1, wherein the inner ring diameter of the seal ring is D 1 The elongation of the sealing ring is (R 2 -D 1 )/D 1 The (R) 2 -D 1 )/D 1 Is in the range of 0 < (R) 2 -D 1 )/D 1 ≤0.05。
3. The compressor of claim 1, wherein the height of the ring groove or the notch groove is h, and the diameter of the outer ring surface of the lower bearing is R 1 The axial clearance between the sealing ring and the ring groove or the axial clearance between the sealing ring and the notch groove is h/D 2 The h/D 2 In the range of 1 < h/D 2 < 1.6; and/or
The radial clearance between the sealing ring and the shell and the radial clearance between the sealing ring and the shell are D 2 /[(R 1 -R 2 )/2]The D is 2 /[(R 1 -R 2 )/2]In the range of 1 < D 2 /[(R 1 -R 2 )/2]＜1.6。
4. The compressor of claim 1, wherein the outer circumferential surface of the seal ring is provided with a plurality of annular seal projections, and the plurality of annular seal projections are laminated in order along the height direction of the seal ring.
5. The compressor of claim 1, wherein the ring groove or the notch groove is provided in plurality.
6. The compressor of claim 1, wherein a notch wall of the ring groove or the notch groove is provided with a chamfer.
7. The compressor of claim 6, wherein the chamfer has a chamfer width r in the range of 0.1mm < r < 1.2mm.
8. The compressor of claim 1, wherein the cross-sectional shape of the seal ring is circular, star-shaped, oval-shaped, or square.
9. The compressor of claim 1, wherein the seal ring is an interference fit with the housing.
10. A compressor according to any one of claims 1 to 9, wherein the cylinder is provided with a weld, and the vertical distance from the centre of the seal ring to the weld is S 1 The S is 1 S is more than or equal to 10mm 1 。
11. A refrigeration device comprising a compressor as claimed in any one of claims 1 to 10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321135408.0U CN220378477U (en) | 2023-05-11 | 2023-05-11 | Compressor and refrigeration equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321135408.0U CN220378477U (en) | 2023-05-11 | 2023-05-11 | Compressor and refrigeration equipment |
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| Publication Number | Publication Date |
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| CN220378477U true CN220378477U (en) | 2024-01-23 |
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|---|---|---|---|
| CN202321135408.0U Active CN220378477U (en) | 2023-05-11 | 2023-05-11 | Compressor and refrigeration equipment |
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| Country | Link |
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| CN (1) | CN220378477U (en) |
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