CN116816635B - Linear Stirling refrigerator motor subassembly - Google Patents
Linear Stirling refrigerator motor subassembly Download PDFInfo
- Publication number
- CN116816635B CN116816635B CN202311107612.6A CN202311107612A CN116816635B CN 116816635 B CN116816635 B CN 116816635B CN 202311107612 A CN202311107612 A CN 202311107612A CN 116816635 B CN116816635 B CN 116816635B
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- Prior art keywords
- piston
- side wall
- bottom wall
- wear
- steel sheet
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 23
- 239000010959 steel Substances 0.000 claims abstract description 23
- 238000010438 heat treatment Methods 0.000 claims description 5
- 238000003754 machining Methods 0.000 claims description 5
- 229910001103 M42 high speed steel Inorganic materials 0.000 claims description 3
- 230000003746 surface roughness Effects 0.000 claims description 3
- 238000012545 processing Methods 0.000 abstract description 8
- 239000011248 coating agent Substances 0.000 description 12
- 238000000576 coating method Methods 0.000 description 12
- 238000000034 method Methods 0.000 description 11
- 238000007789 sealing Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 4
- 239000007769 metal material Substances 0.000 description 4
- 238000009423 ventilation Methods 0.000 description 4
- 238000005299 abrasion Methods 0.000 description 3
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 239000011159 matrix material Substances 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 229910000997 High-speed steel Inorganic materials 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- -1 polytetrafluoroethylene Polymers 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
Classifications
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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
- F04B35/00—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for
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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
- F04B37/00—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00
- F04B37/10—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00 for special use
- F04B37/12—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00 for special use to obtain high pressure
-
- 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
- F04B39/0005—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 adaptations of pistons
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B9/00—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point
- F25B9/14—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point characterised by the cycle used, e.g. Stirling cycle
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
Abstract
The invention discloses a linear Stirling refrigerator motor sub-assembly which comprises a rotor framework, a magnetic steel sheet and a piston. The rotor framework comprises a side wall and a bottom wall which are integrally structured, the longitudinal section of the side wall is circular, and the bottom wall is fixedly arranged at one end of the side wall; the magnetic steel sheet is fixedly sleeved outside the side wall; one end of the piston is fixedly arranged on the bottom wall, and a spring mounting hole is formed in one end, connected with the bottom wall, of the piston; the piston and the rotor framework are of an integrated structure, and the piston and the side wall are coaxially arranged. Through with the piston with the active cell skeleton sets up as integral type structure for both have unified size benchmark when processing, guarantee the axiality of all cylindrical surfaces of piston, active cell skeleton through processing, thereby guarantee the axiality of the straight reciprocating motion of piston in the cylinder jacket, reduce the frictional resistance because of form and position tolerance leads to, guarantee the performance of active cell subassembly.
Description
Technical Field
The invention relates to the technical field of refrigerators, in particular to a linear Stirling refrigerator motor-driven subassembly.
Background
The linear Stirling refrigerator mainly comprises a compressor, an expander and a connecting pipe. The rotor component of the compressor is acted by alternating magnetic field force to drive the compression piston to reciprocate in the cylinder, so that working medium with periodic pressure fluctuation flows and enters the expander through the connecting pipe.
The factors limiting the service life of the refrigerator are many, and according to a great number of experiments and researches at home and abroad, the main factors influencing the service life of the refrigerator include abrasion, leakage, pollution and fatigue, wherein the leakage, the pollution and the fatigue can be ensured by optimizing the design and the process, and the abrasion becomes a key failure mode. For the linear Stirling refrigerator widely used at present, piston and cylinder abrasion becomes a very critical factor limiting the service life of the refrigerator and is also a failure mode which is most difficult to solve.
In order to reduce the running resistance of the piston of the Stirling refrigerator in the cylinder, a self-lubricating wear-resistant coating is sprayed or bonded on the surface of the piston, the piston is processed to a required size through a grinding machine, and then the piston is fixedly connected with a rotor framework through welding or bonding.
However, because the piston and the rotor framework lack a uniform positioning reference, the problem of larger coaxiality error exists between the piston and the rotor framework in the assembly process, and further, the sliding friction force between the piston and the cylinder is large, and the vibration of the compressor is large.
Disclosure of Invention
The technical problems solved by the invention are as follows: because the piston and the rotor framework lack of uniform positioning reference, the problem of large coaxiality error of the piston and the rotor framework in the assembly process is caused, and further, the sliding friction force of the piston and the cylinder is large, and the vibration of the compressor is large.
The aim of the invention can be achieved by the following technical scheme:
a linear stirling cooler motor subassembly comprising:
the rotor framework comprises a side wall and a bottom wall which are integrally structured, the longitudinal section of the side wall is circular, and the bottom wall is fixedly arranged at one end of the side wall;
the magnetic steel sheet is fixedly sleeved outside the side wall;
one end of the piston is fixedly arranged on the bottom wall;
the piston and the rotor framework are of an integrated structure, and the piston and the side wall are coaxially arranged.
As a further scheme of the invention: and a spring mounting hole is formed in one end, connected with the bottom wall, of the piston.
As a further scheme of the invention: and a cavity matched with the air cylinder is formed between the rotor framework and the piston, and a plurality of back pressure cavity vent holes communicated with the cavity are formed in the bottom wall.
As a further scheme of the invention: the back pressure cavity vent holes are uniformly distributed around the axis of the side wall.
As a further scheme of the invention: and the outer circular surface of the piston is fixedly sleeved with a wear-resistant sleeve.
As a further scheme of the invention: the piston is in interference fit with the wear-resistant sleeve.
As a further scheme of the invention: the wear-resistant sleeve is made of M42 high-speed steel, the heat treatment hardness of the wear-resistant sleeve is not less than HRC67, the surface roughness is not more than Ra0.05, and the cylindricity and coaxiality of the inner cylindrical surface and the outer cylindrical surface of the wear-resistant sleeve are not more than 3um.
As a further scheme of the invention: one end of the outer circular surface of the rotor framework is fixedly provided with a mounting part, an annular groove is formed in the mounting part, and the annular groove is matched with the magnetic steel sheet.
As a further scheme of the invention: and a clamping ring is fixedly sleeved on the outer circular surface of the rotor framework, and the clamping ring and the mounting part are respectively positioned at two ends of the magnetic steel sheet.
As a further scheme of the invention: one side of the clamping ring is provided with a step part, and the inner diameter of the step part is matched with the outer diameter of the magnetic steel sheet.
A linear stirling cooler motor subassembly in accordance with the present invention has at least one of the following technical effects:
the invention omits the preparation process of the wear-resistant coating on the surface of the piston, and the piston and the rotor framework are arranged into an integrated structure, so that the piston and the rotor framework have uniform dimension standard during processing, and the coaxiality of all cylindrical surfaces of the piston and the rotor framework is ensured through processing, so that the coaxiality of the piston in a cylinder sleeve in linear reciprocating motion is ensured, the friction resistance caused by form and position tolerance is reduced, and the problems that the coaxiality error of the piston and the rotor framework is larger during the assembly process and the sliding friction of the piston and the cylinder is larger and the vibration of the compressor is larger due to the fact that the piston and the rotor framework are respectively processed and lack of uniform positioning standard in the prior art are solved.
Through offer the spring mounting hole on the piston and be used for holding the cylinder spring of compressor rotor subassembly, and then can reduce rotor subassembly axial installation space greatly to reduce the axial size of compressor.
The resistance received when the cylinder body (namely the cylinder sleeve) of the cylinder moves is reduced through the ventilation hole of the back pressure cavity, so that the compression functional force of the piston is effectively improved.
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 foregoing and/or additional aspects and advantages of the invention will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:
FIG. 1 is a schematic cross-sectional view of the entire structure of the present invention;
FIG. 2 is a schematic cross-sectional structure of a mover frame of the present invention.
In the figure:
1. a mover frame; 2. a clasp; 3. a magnetic steel sheet; 4. a wear-resistant sleeve;
11. a piston; 12. an annular groove; 13. a spring mounting hole; 14. a cavity; 15. the back pressure cavity is provided with a vent hole.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be understood that references to orientation descriptions such as upper, lower, front, rear, left, right, etc. are based on the orientation or positional relationship shown in the drawings, are merely for convenience of description of the present invention and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.
In the description of the present invention, a number means one or more, a number means two or more, and greater than, less than, exceeding, etc. are understood to not include the present number, and above, below, within, etc. are understood to include the present number. The description of the first and second is for the purpose of distinguishing between technical features only and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
Referring to fig. 1-2, the invention discloses a linear stirling refrigerator motor subassembly, which comprises a rotor framework 1, a magnetic steel sheet 3 and a piston 11. The rotor framework 1 comprises a side wall and a bottom wall which are integrally structured, the longitudinal section of the side wall is circular, and the bottom wall is fixedly arranged at one end of the side wall; the magnetic steel sheet 3 is fixedly sleeved outside the side wall; one end of the piston 11 is fixedly arranged on the bottom wall, and a spring mounting hole 13 is formed in one end, connected with the bottom wall, of the piston 11; the piston 11 and the mover frame 1 are in an integrated structure, and the piston 11 and the side wall are coaxially arranged.
Referring to fig. 1-2, in one embodiment of the present invention, the mover frame 1 is used as a supporting body for driving the piston 11 to move, the mover frame 1 includes a side wall and a bottom wall which are integrally formed, a longitudinal section of the side wall is in a circular shape, and the bottom wall is fixedly disposed at one end of the side wall; namely, the side wall is of a cylindrical structure, and the bottom wall is fixedly arranged at one end of the side wall. The magnetic steel sheet 3 is fixedly sleeved outside the side wall; when in use, the magnetic steel sheet 3 is acted by the alternating magnetic field force so as to drive the mover framework 1 and the piston 11 to reciprocate.
Referring to fig. 1-2, in one embodiment of the present invention, one end of the piston 11 is fixedly disposed on the bottom wall, the piston 11 and the mover frame 1 are in an integral structure, and the piston 11 and the side wall are coaxially disposed. The piston 11 is matched with the body of the cylinder to move in the body of the cylinder to do work. Through with piston 11 with rotor skeleton 1 sets up as an organic whole structure for both have unified size benchmark when processing, guarantee the axiality of piston 11, rotor skeleton 1's all cylindrical surfaces through processing, thereby guarantee the axiality of piston 11 linear reciprocating motion in the cylinder jacket, reduce the frictional resistance that leads to because of form and position tolerance, solve among the prior art because piston 11 and rotor skeleton 1 process respectively, both lack unified location benchmark, lead to piston 11 and rotor skeleton 1 to have the great problem of axiality error in the assembly process, and then lead to piston 11 and cylinder sliding friction big, the great problem of compressor vibration.
Referring to fig. 1-2, in one embodiment of the present invention, a spring mounting hole 13 is formed at one end of the piston 11 connected to the bottom wall, i.e., the right end (taking the drawing as an example) of the piston 11; the piston 11 is provided with the spring mounting hole 13 for accommodating the cylindrical spring of the movable sub-assembly of the compressor, so that the axial mounting space of the movable sub-assembly can be greatly reduced, and the axial size of the compressor is reduced.
Referring to fig. 1-2, in one embodiment of the present invention, a cavity 14 matching with a cylinder body of a cylinder is formed between the mover frame 1 and the piston 11, and a plurality of back pressure cavity ventilation holes 15 communicating with the cavity 14 are formed on the bottom wall. Further, the back pressure chamber ventilation holes 15 are uniformly distributed around the axis of the side wall. The axes of the back pressure cavity vent holes 15 are parallel to the axis of the mover frame 1. The resistance received when the cylinder body (i.e. the cylinder sleeve) of the cylinder moves is reduced by the ventilation hole 15 with the back pressure cavity, so that the compression functional force of the piston 11 is effectively improved.
Referring to fig. 1-2, in one embodiment of the invention, the stirling cooler gap seal is a seal achieved by using a small radial gap between the piston 11 and cylinder and a certain length of the gap in the axial direction. Gap sealing is a key technology of Stirling refrigerators and has a critical effect on the performance and life of the refrigerator. The piston 11 in the refrigerator at present mainly adopts surface treatment of a coating (plating), and the wear resistance of the piston is difficult to meet the long service life requirement of the refrigerator. The surface coating of the piston 11 is generally made of polytetrafluoroethylene-based polymer composite materials, the cylinder and the piston 11 matrix are made of dissimilar metal materials, the thermal expansion coefficients of the coating materials and the metal materials are different, and the thermal expansion coefficients of the coating materials and the metal materials are more than 10 times larger than those of the metal materials, so that the dynamic sealing gap is difficult to keep relatively small at different environment temperatures, and the refrigerating efficiency of the refrigerating machine is directly influenced by the change of the dynamic sealing gap. Meanwhile, the coating has the problems of low bonding force with the base body of the piston 11, cracking, unstable quality, long working procedure time and the like, and abrasive dust of the coating can fall off in a powder form, so that working medium is polluted, a heat return channel is blocked, and the refrigeration efficiency is reduced.
Referring to fig. 1-2, in one embodiment of the present invention, an outer circumferential surface of the piston 11 is fixedly sleeved with a wear-resistant sleeve 4. The wear-resistant sleeve 4 is fixedly connected with the piston 11 through hot insert sleeve interference fit. The outer diameter of the wear-resistant sleeve 4 is matched with the inner diameter of the cylinder. The wear-resistant sleeve 4 can be made of M42 high-speed steel, the heat treatment hardness of the wear-resistant sleeve 4 is not less than HRC67, the surface roughness is not more than Ra0.05, and the cylindricity and coaxiality of the inner cylindrical surface and the outer cylindrical surface of the wear-resistant sleeve 4 are not more than 3um. The piston 11 is used as a matrix, the wear-resistant sleeve 4 subjected to heat treatment and finish machining is arranged on the piston 11, the performance of the wear-resistant sleeve 4 is guaranteed, the preparation and machining procedures of a wear-resistant coating on the surface of the piston 11 are omitted, the dynamic sealing gap between the piston 11 and a cylinder is guaranteed, and meanwhile, the machining procedures of a rotor assembly are simplified. Solves the problem that the thermal expansion coefficient difference between the existing wear-resistant coating and the metal matrix is too large to lead to the actuation of the sealing gap to be difficult to ensure. The piston and the cylinder sleeve are made of the same high-speed steel material, and are subjected to proper heat treatment, precise machining, surface strengthening and structural optimization, so that the friction resistance and the wear rate of the piston and the cylinder are reduced, the piston and the cylinder are prevented from being blocked in different working temperature environments, a relatively unchanged dynamic sealing gap is maintained, and the high-efficiency and long-service-life working requirements of the refrigerator are met. The invention omits the preparation process of the wear-resistant coating on the surface of the piston, eliminates the problems caused by different materials of the wear-resistant coating (large difference of thermal expansion coefficients), ensures that the refrigerating efficiency of the refrigerator is higher at different environmental temperatures, and reduces the power consumption.
Referring to fig. 1-2, in one embodiment of the present invention, an installation portion is fixedly disposed at one end of the outer circumferential surface of the mover frame 1, an annular groove 12 is formed on the installation portion (right side surface), and the annular groove 12 is matched with the magnetic steel sheet 3. The clamping ring 2 is fixedly sleeved on the outer circular surface of the rotor framework 1, and the clamping ring 2 and the mounting part are respectively positioned at two ends of the magnetic steel sheet 3. The clamping ring 2 and the rotor framework 1 can be fixed by laser welding. Further, a step portion is arranged on one side of the clamping ring 2, and the inner diameter of the step portion is matched with the outer diameter of the magnetic steel sheet 3. The magnetic steel sheet 3 is arranged between the mounting part and the clamping ring 2, and the magnetic steel sheet 3 is limited by the annular groove 12 and the step part, so that the magnetic steel sheet 3 is reliably fixed in the axial direction and the radial direction.
The working principle of the invention is as follows:
the movable element framework 1 is used as a supporting main body for driving the piston 11 to move, the movable element framework 1 comprises a side wall and a bottom wall which are integrally structured, the longitudinal section of the side wall is in a circular shape, and the bottom wall is fixedly arranged at one end of the side wall; namely, the side wall is of a cylindrical structure, and the bottom wall is fixedly arranged at one end of the side wall. The magnetic steel sheet 3 is fixedly sleeved outside the side wall; when in use, the magnetic steel sheet 3 is acted by the alternating magnetic field force so as to drive the mover framework 1 and the piston 11 to reciprocate. One end of the piston 11 is fixedly arranged on the bottom wall, the piston 11 and the rotor framework 1 are of an integrated structure, and the piston 11 and the side wall are coaxially arranged. The piston 11 is matched with the body of the cylinder to move in the body of the cylinder to do work. Through with piston 11 with rotor skeleton 1 sets up as an organic whole structure for both have unified size benchmark when processing, guarantee the axiality of piston 11, rotor skeleton 1's all cylindrical surfaces through processing, thereby guarantee the axiality of piston 11 linear reciprocating motion in the cylinder jacket, reduce the frictional resistance that leads to because of form and position tolerance, solve among the prior art because piston 11 and rotor skeleton 1 process respectively, both lack unified location benchmark, lead to piston 11 and rotor skeleton 1 to have the great problem of axiality error in the assembly process, and then lead to piston 11 and cylinder sliding friction big, the great problem of compressor vibration.
The foregoing describes one embodiment of the present invention in detail, but the description is only a preferred embodiment of the present invention and should not be construed as limiting the scope of the invention. All such equivalent changes and modifications as come within the scope of the following claims are intended to be embraced therein.
Claims (7)
1. A linear stirling cooler motor subassembly comprising:
the rotor framework (1) comprises a side wall and a bottom wall which are integrally structured, the longitudinal section of the side wall is circular, and the bottom wall is fixedly arranged at one end of the side wall;
the magnetic steel sheet (3) is fixedly sleeved outside the side wall;
a piston (11), wherein one end of the piston (11) is fixedly arranged on the bottom wall;
the piston (11) and the rotor framework (1) are of an integrated structure, the piston (11) and the side wall are coaxially arranged, and the rotor framework (1) and the piston (11) are subjected to machining to select uniform dimension references so as to ensure coaxiality of all cylindrical surfaces of the rotor framework (1) and the piston (11).
The outer circular surface of the piston (11) is fixedly sleeved with a wear-resistant sleeve (4); the piston (11) is in interference fit with the wear-resistant sleeve (4);
the wear-resistant sleeve (4) is made of M42 high-speed steel, the heat treatment hardness of the wear-resistant sleeve (4) is not less than HRC67, the surface roughness is not more than Ra0.05, and the cylindricity and coaxiality of the inner cylindrical surface and the outer cylindrical surface of the wear-resistant sleeve (4) are not more than 3um.
2. A linear stirling cooler motor sub-assembly according to claim 1, wherein the piston (11) is provided with a spring mounting hole (13) at the end connected to the bottom wall.
3. A linear stirling cooler motor subassembly according to claim 1, wherein a cavity (14) matching with a cylinder is formed between the mover frame (1) and the piston (11), and a plurality of back pressure cavity vent holes (15) communicating with the cavity (14) are formed in the bottom wall.
4. A linear stirling cooler motor sub-assembly according to claim 3, wherein the back pressure chamber vent holes (15) are evenly distributed about the axis of the side walls.
5. The linear Stirling refrigerator motor sub-assembly according to claim 1, wherein a mounting part is fixedly arranged at one end of the outer circular surface of the mover framework (1), an annular groove (12) is formed in the mounting part, and the annular groove (12) is matched with the magnetic steel sheet (3).
6. The linear Stirling refrigerator motor sub-assembly according to claim 5, wherein a clamping ring (2) is fixedly sleeved on the outer circular surface of the rotor framework (1), and the clamping ring (2) and the mounting part are respectively positioned at two ends of the magnetic steel sheet (3).
7. A linear stirling cooler motor sub-assembly according to claim 6, wherein one side of the snap ring (2) is provided with a step, the inside diameter of which matches the outside diameter of the magnet steel sheet (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311107612.6A CN116816635B (en) | 2023-08-31 | 2023-08-31 | Linear Stirling refrigerator motor subassembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311107612.6A CN116816635B (en) | 2023-08-31 | 2023-08-31 | Linear Stirling refrigerator motor subassembly |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN116816635A CN116816635A (en) | 2023-09-29 |
| CN116816635B true CN116816635B (en) | 2024-01-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311107612.6A Active CN116816635B (en) | 2023-08-31 | 2023-08-31 | Linear Stirling refrigerator motor subassembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116816635B (en) |
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| CN2779166Y (en) * | 2005-03-23 | 2006-05-10 | 谢维连 | Plunger head with wear resistant cover |
| JP2006308135A (en) * | 2005-04-26 | 2006-11-09 | Sharp Corp | Stirling engine and stirling cooling storage |
| CN101487460A (en) * | 2008-12-29 | 2009-07-22 | 沈阳工大恒晟鑫源机械制造有限公司 | Miniature refrigeration linear compressor |
| CN201705609U (en) * | 2010-05-21 | 2011-01-12 | 浙江井田机电股份有限公司 | Moving-magnetic type directly-driven compressor |
| CN103696934A (en) * | 2013-12-20 | 2014-04-02 | 安鲁荣 | Double-cylinder linear compressor |
| CN107762770A (en) * | 2016-08-19 | 2018-03-06 | 青岛海尔智能技术研发有限公司 | Linear compressor and its control method |
| CN109653987A (en) * | 2018-12-07 | 2019-04-19 | 天津探峰科技有限公司 | A kind of Linearkompressor with fueller |
| CN111120651A (en) * | 2019-12-30 | 2020-05-08 | 台州贝力特机械有限公司 | Piston for breaking hammer and manufacturing method thereof |
| CN115076067A (en) * | 2021-03-12 | 2022-09-20 | 中国科学院理化技术研究所 | Piston and linear compressor |
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