CN111287946B - Cylinder, reciprocating compressor and refrigerator - Google Patents
Cylinder, reciprocating compressor and refrigerator Download PDFInfo
- Publication number
- CN111287946B CN111287946B CN201811505633.2A CN201811505633A CN111287946B CN 111287946 B CN111287946 B CN 111287946B CN 201811505633 A CN201811505633 A CN 201811505633A CN 111287946 B CN111287946 B CN 111287946B
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- cylinder
- connecting hole
- reciprocating compressor
- boss
- cylinder body
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/12—Casings; Cylinders; Cylinder heads; Fluid connections
- F04B39/122—Cylinder block
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/12—Casings; Cylinders; Cylinder heads; Fluid connections
- F04B39/127—Mounting of a cylinder block in a casing
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/14—Provisions for readily assembling or disassembling
Abstract
The invention provides a cylinder, a reciprocating compressor and a refrigerator, wherein the cylinder comprises a cylinder body and two mounting bosses respectively arranged on two sides of the peripheral surface of the cylinder body, each mounting boss is provided with a first connecting hole and a second connecting hole, the first connecting hole is used for being connected with a cylinder cover of the reciprocating compressor, the second connecting hole is used for being connected with a cylinder frame of the reciprocating compressor, a cylinder hole is formed in the cylinder body, and the cylinder is integrally formed by sintering metal powder through a powder metallurgy process. The cylinder that this scheme provided utilizes metal powder sintering integrated into one piece through powder metallurgy technology, adopts above-mentioned production technology, and blank size precision easily guarantees, and the precision of direct forming back jar hole and installation fitting surface alright reach the requirement when cylinder sintering production, has greatly reduced cylinder subsequent processing procedure to a great extent, for traditional casting shaping scheme, shaping simple process is high-efficient, has reduced the processing cost, can improve product production efficiency simultaneously.
Description
Technical Field
The present invention relates to the field of refrigeration equipment, and more particularly, to a cylinder, a reciprocating compressor having the cylinder, and a refrigerator having the reciprocating compressor.
Background
In the conventional technology, a cylinder used in a reciprocating compressor is generally cast and formed integrally with a frame by using cast iron, i.e. a crankcase. The casting crankcase blank has a complex and irregular structure, and has a complex process and high precision requirement when a cylinder hole and an installation matching surface are machined, so the process cost is high; and for compressors of different models, the appearance and the size of the crankcase are different, so the universality of parts is poor. The crankcase for the reciprocating compressor is also less in split type, namely the cylinder and the frame are separated to form independent parts, the cylinder is also a cast iron casting, so that the problems that the blank size precision of the cylinder cast molding is poor, the number of surfaces to be processed is large, the processing technology is still complex and the like exist, and the problem that how to ensure the installation stability of the cylinder is required to be solved under the split type condition of the crankcase is solved.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art.
Therefore, the invention aims to provide the air cylinder with simple production and processing technology.
Another object of the present invention is to provide a reciprocating compressor having the cylinder.
It is still another object of the present invention to provide a refrigerator including the above reciprocating compressor.
In order to achieve the above object, an embodiment of a first aspect of the present invention provides a cylinder for a reciprocating compressor, including a cylinder body and two mounting bosses respectively disposed on two sides of an outer circumferential surface of the cylinder body, wherein each of the mounting bosses is provided with a first connecting hole and a second connecting hole, the first connecting hole is configured to be connected to a cylinder head of the reciprocating compressor, the second connecting hole is configured to be connected to a cylinder frame of the reciprocating compressor, the cylinder body is provided with a cylinder hole axially penetrating through the cylinder body, and the cylinder is integrally formed by sintering metal powder through a powder metallurgy process.
The cylinder that this scheme provided utilizes metal powder sintering integrated into one piece through powder metallurgy technology, adopts above-mentioned production technology, and blank size precision easily guarantees, and the precision of direct forming back jar hole and installation fitting surface alright reach the requirement when cylinder sintering production, has greatly reduced cylinder subsequent processing procedure to a great extent, for traditional casting shaping scheme, shaping simple process is high-efficient, has reduced the processing cost, can improve product production efficiency simultaneously. In addition, the cylinder is one part of a split type crankcase, the cylinder and a cylinder frame form the crankcase after being assembled, the cylinder and the cylinder frame are installed in the reciprocating compressor through the cylinder frame, the assembling precision requirement can be reduced due to the split type design of the cylinder and the cylinder frame, the cylinder of the same type can be used for compressors of different types, and the universality of parts is improved. It is worth explaining that, this design has still made improvement to the cylinder structure, sets up two installation bosss on the cylinder body outer peripheral face, through installation boss and cylinder cap and cylinder frame connection, assembly structure designs like this and neither needs the trompil on the cavity, also can not cut down the cavity wall thickness, can guarantee the structural strength of cylinder body to guarantee the reliability of cylinder body, and be equipped with first mounting hole and second mounting hole on the installation boss, first connecting hole is connected with the cylinder cap, the second connecting hole is connected with the cylinder frame, design installation stability is high like this. Wherein, the mounting boss is directly molded during cylinder sintering production without subsequent processing.
In any of the above technical solutions, optionally, a first mounting surface for being matched with the cylinder head and a second mounting surface for being matched with the cylinder frame are formed on the mounting boss, the first connection hole is disposed on the first mounting surface and extends in the axial direction of the cylinder body, and the second connection hole is disposed on the second mounting surface and is perpendicular to the first connection hole.
The first assembly surface can promote the stability of cylinder and cylinder cap assembly, and the second assembly surface can promote the stability of cylinder and cylinder frame assembly, and after the cylinder sintering shaping, the precision of first assembly surface and second assembly surface can directly reach the requirement, need not the subsequent processing, and the shaping simple process of the cylinder that this scheme of can be seen provides is high-efficient, can reduce the processing cost and improve product production efficiency.
Specifically, the installation boss includes first boss and the second boss that is connected, first connecting hole sets up on the first boss, the second connecting hole sets up on the second boss, the installation boss is whole to be L shape.
In any of the above technical solutions, optionally, the first connecting hole and the second connecting hole are through holes or screw holes, and the mounting boss is riveted or screwed with the cylinder cover and the cylinder frame.
In any of the above technical solutions, optionally, a counter bore coaxial with the cylinder bore is disposed at a first end of the cylinder body, which is matched with the cylinder head.
The counter bore is used for installing the valves, and the counter bore is directly formed in the sintering production of the cylinder, so that subsequent processing is not needed, the forming process of the cylinder provided by the scheme is simple and efficient, the process cost can be reduced, and the production efficiency of products is improved.
In any of the above technical solutions, optionally, at least one limiting protrusion and/or a limiting groove is provided on a circumferential surface of the counterbore.
In this scheme, be equipped with spacing arch and/or spacing recess on the global of counter bore, be equipped with the limit structure of looks adaptation on the valves to realize the circumference location when cylinder and valves are assembled, avoid valves circumference installation angle to appear the deviation. Similarly, the limiting bulges and the limiting grooves are directly formed during cylinder sintering production without subsequent processing.
Preferably, a limiting protrusion and a limiting groove are arranged on the peripheral surface of the counter bore.
In this scheme, limit structure on the counter bore includes a spacing arch and a spacing recess, and limit structure is asymmetric structure, plays the slow-witted effect of preventing staying to the valves installation like this, can avoid the valve equipment to be anti-reverse.
In any of the above technical solutions, optionally, the mounting boss and the first end of the cylinder body
The end surfaces of the cylinder body and the cylinder body are arranged at intervals, the two sides of the outer peripheral surface of the cylinder body are respectively provided with a limiting plane, and the limiting planes extend from the first end of the cylinder body to the mounting boss.
In this scheme, installation boss and cylinder body terminal surface are at a certain distance apart, and are equipped with spacing plane on the cylinder body outer peripheral face, are equipped with the limit structure of looks adaptation on the valve gap inner peripheral face, and during the installation cylinder cap, the axis location is realized with installation boss butt in cylinder cap bottom, and the spacing structure cooperation on cylinder body spacing plane and the cylinder cap inner peripheral face realizes circumferential location to guarantee the accuracy of cylinder cap mounted position. Similarly, the limiting plane is directly formed during cylinder sintering production without subsequent processing.
Embodiments of the second aspect of the present invention provide a reciprocating compressor comprising a cylinder as provided in any of the embodiments of the first aspect of the present invention.
The reciprocating compressor provided by the embodiment of the second aspect of the present invention has the cylinder provided by any one of the embodiments of the first aspect of the present invention, and therefore the reciprocating compressor has all the advantages of the cylinder provided by any one of the embodiments, and further description is omitted here.
An embodiment of the third aspect of the invention provides a refrigerator comprising the compressor.
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 is a schematic diagram of a cylinder according to an embodiment of the present invention;
FIG. 2 is a schematic front view of the cylinder shown in FIG. 1;
FIG. 3 is a schematic top view of the cylinder of FIG. 2;
fig. 4 is a cross-sectional structural view of the cylinder of fig. 1.
Wherein, the correspondence between the reference numbers and the part names in fig. 1 to 4 is:
the cylinder body 1, the cylinder hole 11, the counter bore 12, the 121 limiting bulge, the 122 limiting groove, the 13 limiting plane, the 2 mounting boss, the 21 first boss, the 211 first connecting hole, the 22 second boss and the 221 second connecting hole.
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 otherwise than as specifically described herein, and thus the scope of the present invention is not limited by the specific embodiments disclosed below.
An embodiment of a first aspect of the present invention provides a cylinder for a reciprocating compressor, as shown in fig. 1 to 4, the cylinder including a cylinder body 1 and two mounting bosses 2 respectively disposed at both sides of an outer circumferential surface of the cylinder body 1, the mounting bosses 2 being adapted to be connected to a cylinder head and a cylinder frame of the reciprocating compressor, the cylinder body 1 being provided with a cylinder hole 11, the cylinder hole 11 axially penetrating through the cylinder body 1, the cylinder being integrally formed by sintering metal powder through a powder metallurgy process.
The cylinder that this scheme provided utilizes metal powder sintering integrated into one piece through powder metallurgy technology, adopts above-mentioned production technology, and blank size precision easily guarantees, and the precision of direct forming back jar hole 11 and installation fitting surface alright reach the requirement when cylinder sintering production, has greatly reduced the follow-up manufacturing procedure of cylinder to a great extent, for traditional casting shaping scheme, shaping simple process is high-efficient, has reduced the processing cost, can improve product production efficiency simultaneously. In addition, the cylinder is one part of a split type crankcase, the cylinder and a cylinder frame form the crankcase after being assembled, the cylinder and the cylinder frame are installed in the reciprocating compressor through the cylinder frame, the assembling precision requirement can be reduced due to the split type design of the cylinder and the cylinder frame, the cylinder of the same type can be used for compressors of different types, and the universality of parts is improved.
It is worth to say that this design has still made improvement to the cylinder structure, sets up two installation bosss 2 on the cylinder body 1 outer peripheral face, through installation boss 2 and cylinder cap and cylinder frame connection, assembly structure design neither need be in the cavity trompil nor can reduce the cavity wall thickness like this, can guarantee the structural strength of cylinder body 1 to guarantee the reliability of cylinder body 1. Specifically, the installation boss 2 includes the first boss 21 and the second boss 22 that are connected, make the installation boss 2 wholly be L shape, form on the first boss 21 to be used for with the first fitting surface of cylinder cap complex, form on the second boss 22 to be used for with cylinder frame complex second fitting surface, be equipped with on the first fitting surface to be used for being connected first connecting hole 211 with reciprocating compressor's cylinder cap, be equipped with on the second fitting surface to be used for being connected second connecting hole 221 with reciprocating compressor's cylinder frame, first connecting hole 211 extends along the axial of cylinder body 1, second connecting hole 221 is perpendicular with first connecting hole 211. Wherein, the mounting boss 2 is directly formed during cylinder sintering production without subsequent processing.
The first assembly surface can promote the stability of cylinder and cylinder cap assembly, and the second assembly surface can promote the stability of cylinder and cylinder frame assembly, and after the cylinder sintering shaping, the precision of first assembly surface and second assembly surface can directly reach the requirement, need not the subsequent processing, and the shaping simple process of the cylinder that this scheme of can be seen provides is high-efficient, can reduce the processing cost and improve product production efficiency. First connecting hole 211 on the installation boss 2 is connected with the cylinder cap, and second connecting hole 221 is connected with the cylinder frame, and this kind of connected mode is simple reliable, and installation stability is high.
Optionally, the first connection hole 211 and the second connection hole 221 are through holes or screw holes, and the mounting boss is riveted or screwed with the cylinder cover or the cylinder frame.
In the above embodiment, the first end of the cylinder block 1, which is engaged with the cylinder head, is provided with the counter bore 12 coaxial with the cylinder bore 11.
The counter bore 12 is used for installing the valves, and the counter bore 12 is directly formed in the sintering production of the cylinder, so that subsequent processing is not needed, the forming process of the cylinder provided by the scheme is simple and efficient, the process cost can be reduced, and the production efficiency of products is improved.
In the above embodiment, optionally, at least one limiting protrusion 121 and/or a limiting groove 122 are provided on the circumferential surface of the counterbore 12.
In this scheme, be equipped with spacing arch 121 and/or spacing recess 122 on the global of counter bore 12, be equipped with the limit structure of looks adaptation on the valves to realize circumference location when cylinder and valves are assembled, avoid valves circumference installation angle to appear the deviation. Similarly, the limiting protrusion 121 and the limiting groove 122 are directly formed during sintering production of the cylinder, and subsequent processing is not needed.
Wherein, a limiting protrusion 121 and a limiting groove 122 are preferably arranged on the peripheral surface of the counter bore 12.
In this scheme, limit structure on counter bore 12 includes a spacing arch 121 and a spacing recess 122, and limit structure is asymmetric structure, plays the slow-witted effect of preventing to the valves installation like this, can avoid the valve equipment to be anti-reverse.
In the above embodiment, the first assembling surface is arranged along the radial direction of the cylinder and located at the position where the mounting boss 2 is close to the first end of the cylinder body 1, the first assembling surface is at a certain distance from the end surface of the first end of the cylinder body 1, the two sides of the outer peripheral surface of the cylinder body 1 are respectively provided with the limiting planes 13, and the limiting planes 13 extend from the first end of the cylinder body 1 to the first assembling surface.
In this scheme, installation boss 2 is at a certain distance away from 1 terminal surface of cylinder body, and is equipped with spacing plane 13 on the 1 outer peripheral face of cylinder body, is equipped with the limit structure of looks adaptation on the valve gap inner peripheral surface, and during the installation cylinder cap, the axis location is realized with 2 butts of installation boss in cylinder cap bottom, and spacing structure cooperation on 1 spacing plane 13 of cylinder body and the cylinder cap inner peripheral surface realizes the circumference location to guarantee cylinder cap mounted position's accuracy. Similarly, the limiting plane 13 is directly formed during cylinder sintering production without subsequent processing.
Embodiments of the second aspect of the present invention provide a reciprocating compressor comprising a cylinder as provided in any of the embodiments of the first aspect of the present invention.
The reciprocating compressor provided by the embodiment of the second aspect of the present invention has the cylinder provided by any one of the embodiments of the first aspect of the present invention, and therefore the reciprocating compressor has all the advantages of the cylinder provided by any one of the embodiments, and further description is omitted here.
An embodiment of a third aspect of the invention provides a refrigerator comprising the reciprocating compressor described above.
According to the refrigerator provided by the embodiment of the invention, the compressor is arranged, so that the stability of the refrigerator is improved.
In the description of the present invention, the terms "upper", "lower", "top", "bottom", "front", "rear", "left", "right", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, 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.
In the description of the present invention, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance unless explicitly stated or limited otherwise; the terms "connected," "mounted," "secured," and the like are to be construed broadly and include, for example, fixed connections, removable connections, or integral connections; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by 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 (8)
1. A cylinder for a reciprocating compressor, characterized in that,
the cylinder comprises a cylinder body and two mounting bosses which are respectively arranged on two sides of the peripheral surface of the cylinder body, wherein each mounting boss is provided with a first connecting hole and a second connecting hole, the first connecting hole is used for being connected with a cylinder cover of the reciprocating compressor, the second connecting hole is used for being connected with a cylinder frame of the reciprocating compressor, a cylinder hole which axially penetrates through the cylinder body is formed in the cylinder body, and the cylinder is integrally formed by sintering metal powder through a powder metallurgy process;
a first assembling surface matched with the cylinder cover and a second assembling surface matched with the cylinder frame are formed on the mounting boss, the first connecting hole is arranged on the first assembling surface and extends along the axial direction of the cylinder body, and the second connecting hole is arranged on the second assembling surface and is perpendicular to the first connecting hole;
the mounting boss and the end face of the first end of the cylinder body are separated by a certain distance, limiting planes are respectively arranged on two sides of the outer peripheral surface of the cylinder body, and the limiting planes extend from the first end of the cylinder body to the mounting boss.
2. Cylinder according to claim 1,
the installation boss comprises a first boss and a second boss which are connected, the first connecting hole is formed in the first boss, the second connecting hole is formed in the second boss, and the installation boss is integrally L-shaped.
3. Cylinder according to claim 1,
the first connecting hole and the second connecting hole are through holes or screw holes, and the mounting boss is riveted or in threaded connection with the cylinder cover and the cylinder frame.
4. Cylinder according to claim 1,
and a counter bore coaxial with the cylinder hole is arranged at the first end of the cylinder body matched with the cylinder cover.
5. Cylinder according to claim 4,
the peripheral surface of the counter bore is provided with at least one limiting bulge and/or limiting groove.
6. Cylinder according to claim 5,
the peripheral surface of the counter bore is provided with a limiting bulge and a limiting groove.
7. A reciprocating compressor, characterized by comprising a cylinder according to any one of claims 1 to 6.
8. A refrigerator comprising the reciprocating compressor of claim 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811505633.2A CN111287946B (en) | 2018-12-10 | 2018-12-10 | Cylinder, reciprocating compressor and refrigerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811505633.2A CN111287946B (en) | 2018-12-10 | 2018-12-10 | Cylinder, reciprocating compressor and refrigerator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111287946A CN111287946A (en) | 2020-06-16 |
| CN111287946B true CN111287946B (en) | 2022-02-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811505633.2A Active CN111287946B (en) | 2018-12-10 | 2018-12-10 | Cylinder, reciprocating compressor and refrigerator |
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| Country | Link |
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| CN (1) | CN111287946B (en) |
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| CN1497174A (en) * | 2002-09-25 | 2004-05-19 | 丹福斯压缩器有限公司 | Cylinder head structure for piston compressor |
| CN1573099A (en) * | 2003-05-22 | 2005-02-02 | 丹福斯压缩器有限公司 | Piston compressor, particularly a hermetic refrigerant compressor |
| JP2005233142A (en) * | 2004-02-23 | 2005-09-02 | Sumitomo Denko Shoketsu Gokin Kk | Sintered part for compressor and method for manufacturing the same |
| CN1727677A (en) * | 2004-07-28 | 2006-02-01 | Lg电子株式会社 | Reciprocating compressor and manufacturing method thereof |
| CN1779242A (en) * | 2004-11-26 | 2006-05-31 | 乐金电子(天津)电器有限公司 | Assembling structure for frame and cylinder of closed compressor |
| CN1896515A (en) * | 2005-07-13 | 2007-01-17 | 乐金电子(天津)电器有限公司 | Cylinder of closed compressor |
| CN101205878A (en) * | 2006-12-18 | 2008-06-25 | 乐金电子(天津)电器有限公司 | Compression arrangement part of enclosed compressor |
| CN105587598A (en) * | 2014-11-10 | 2016-05-18 | Lg电子株式会社 | Reciprocating compressor |
| CN205991003U (en) * | 2016-06-14 | 2017-03-01 | 惠而浦股份有限公司 | Reciprocating compressor head device |
| CN206221202U (en) * | 2016-11-25 | 2017-06-06 | 安徽美芝制冷设备有限公司 | Reciprocating compressor |
| CN107503913A (en) * | 2016-06-14 | 2017-12-22 | 惠而浦股份有限公司 | The head securing device of refrigeration compressor |
-
2018
- 2018-12-10 CN CN201811505633.2A patent/CN111287946B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1497174A (en) * | 2002-09-25 | 2004-05-19 | 丹福斯压缩器有限公司 | Cylinder head structure for piston compressor |
| CN1573099A (en) * | 2003-05-22 | 2005-02-02 | 丹福斯压缩器有限公司 | Piston compressor, particularly a hermetic refrigerant compressor |
| JP2005233142A (en) * | 2004-02-23 | 2005-09-02 | Sumitomo Denko Shoketsu Gokin Kk | Sintered part for compressor and method for manufacturing the same |
| CN1727677A (en) * | 2004-07-28 | 2006-02-01 | Lg电子株式会社 | Reciprocating compressor and manufacturing method thereof |
| CN1779242A (en) * | 2004-11-26 | 2006-05-31 | 乐金电子(天津)电器有限公司 | Assembling structure for frame and cylinder of closed compressor |
| CN1896515A (en) * | 2005-07-13 | 2007-01-17 | 乐金电子(天津)电器有限公司 | Cylinder of closed compressor |
| CN101205878A (en) * | 2006-12-18 | 2008-06-25 | 乐金电子(天津)电器有限公司 | Compression arrangement part of enclosed compressor |
| CN105587598A (en) * | 2014-11-10 | 2016-05-18 | Lg电子株式会社 | Reciprocating compressor |
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| CN206221202U (en) * | 2016-11-25 | 2017-06-06 | 安徽美芝制冷设备有限公司 | Reciprocating compressor |
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| CN111287946A (en) | 2020-06-16 |
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