CN201639465U - Linear motor rotor sealing structure for moving-magnet type Stirling refrigerator - Google Patents
Linear motor rotor sealing structure for moving-magnet type Stirling refrigerator Download PDFInfo
- Publication number
- CN201639465U CN201639465U CN2010201026631U CN201020102663U CN201639465U CN 201639465 U CN201639465 U CN 201639465U CN 2010201026631 U CN2010201026631 U CN 2010201026631U CN 201020102663 U CN201020102663 U CN 201020102663U CN 201639465 U CN201639465 U CN 201639465U
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- Prior art keywords
- mover
- linear motor
- magnet steel
- moving
- rotor
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- Expired - Fee Related
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Abstract
The utility model provides a linear motor rotor sealing structure for a moving-magnet type Stirling refrigerator. A sealing cover is wrapped on the outer side of rotor magnetic steel; the sealing cover and a rotor magnetic yoke, and the sealing cover and a rotor frame are both completely sealed in a welding manner; and the rotor magnetic steel is completely separated from refrigerating work media. The linear motor rotor sealing structure has the advantages that the rotor magnetic steel and adhesive materials are completely separated from the refrigerating work media under sealing function of the sealing cover, thereby completely eliminating pollution of air discharging performance of non-metal materials to the refrigerating work media, and avoiding influence such as corrosion and the like of the refrigerating work media on the magnetic steel. The sealing cover can strengthen mechanical strength of a rotor, avoids influence of falling of the rotor magnetic steel on moving parts, increases running reliability of the whole refrigerator, and prolongs running life.
Description
Technical field
The utility model relates to a kind of mover structure of linear electric motors, particularly a kind of moving-magnetic type linear motor for stirling refrigerator mover hermetically-sealed construction of sealing fully.
Background technology
The structure of the linear motion actuator that sterlin refrigerator is commonly used can be divided into moving-coil type and moving-magnetic type according to the difference of moving component at present, wherein the moving component of dynamic coil linear motor is a coil, during long-time running, because the gas release performance of nonmetallic materials can pollute refrigeration working medium, thereby has shortened the life-span of refrigeration machine.The moving component of moving-magnetic type linear motor is a magnet steel, and coil is a stationary parts, isolate fully by metallic framework and refrigeration working medium, thereby the gas release performance of coiler part nonmetallic materials can not exert an influence to refrigeration working medium.At present, the long-life linear motor for stirling refrigerator adopts the moving-magnetic type structure more, Figure 1 shows that a kind of mover structure of two-part radial magnetizing, and the direction of arrow is represented magnetizing direction among the figure.Left side magnet steel 1 and right magnet steel 3 are bonded on the mover yoke 2 by glue, and the shortcoming that adopts this structure to exist is: can not eliminate nonmetallic materials fully, promptly there is certain pollution in the gas release performance of glue; The motor long-time running, can there be hidden danger in magnet steel and yoke adhesion strength, and if magnet steel come off owing to reasons such as external force cause chip, probably piston is produced harm; In addition, some refrigeration working medium can form corrosion to magnet steel.
The utility model content
Technical problem to be solved in the utility model is that a kind of moving-magnetic type linear motor for stirling refrigerator mover hermetically-sealed construction of sealing fully will be provided, eliminate the gas release performance problem of nonmetallic materials fully, guarantee that mover has very strong mechanical strength, the corrosion of also having avoided refrigeration working medium may cause simultaneously to magnet steel.
In order to solve above technical problem, the utility model provides a kind of moving-magnetic type linear motor for stirling refrigerator mover hermetically-sealed construction, at mover magnet steel outside environmental sealing cover, adopt welding manner to seal fully between seal closure and the mover yoke and between seal closure and the mover skeleton, mover magnet steel and refrigeration working medium are separated fully.Between left and right magnet steel, install cushion block additional to increase the intensity of seal closure.
Described seal closure adopts nonmagnetic material.
Described cushion block adopts nonmagnetic material or nonmetallic materials.
Superior effect of the present utility model is:
1) sealing function by seal closure separates mover magnet steel and binding material and refrigeration working medium fully, thereby eliminates the pollution of the gas release performance of nonmetallic materials to refrigeration working medium fully;
2) avoided the influences such as corrosion of refrigeration working medium to the mover magnet steel;
3) seal closure can be strengthened the mechanical strength of mover, and the influence of having avoided the mover magnet steel to come off moving component is caused has improved the operational reliability of whole refrigeration machine, has prolonged service life.
Description of drawings
Fig. 1 is the linear motor for stirling refrigerator mover structural representation of existing two-part radial magnetizing;
Fig. 2 is an example structure schematic diagram of the present utility model;
Fig. 3 is among another embodiment of the present utility model, the linear motor rotor structural representation of axial charging;
The number in the figure explanation
1-left side magnet steel; 2-mover yoke;
The right magnet steel of 3-; The 4-cushion block;
The 5-seal closure; 6-left side yoke;
The right yoke of 7-; The axial magnet steel of 8-;
9-mover skeleton.
Embodiment
See also shown in the accompanying drawing, the utility model will be further described.
The utility model provides a kind of moving-magnetic type linear motor for stirling refrigerator mover hermetically-sealed construction, at mover magnet steel outside environmental sealing cover 5, adopt welding manner to seal fully between seal closure 5 and the mover yoke 2 and between seal closure 5 and the mover skeleton 9, mover magnet steel and refrigeration working medium are separated fully.As shown in Figure 2, wherein mover partly comprises left magnet steel 1, right magnet steel 3, mover yoke 2, cushion block 4 and seal closure 5; Mode by seal welding can not be leaked gas welding between seal closure 5 and the mover yoke 4; Cushion block 4 is placed in position, space between left and right magnet steel, and seal closure 5 is played a supportive role, and increases mechanical strength.Described seal closure 5 adopts nonmagnetic material, and should have good solderability between the material of mover yoke 2.Described cushion block 4 can be nonmagnetic metal material or nonmetallic materials.
As shown in Figure 3, in another embodiment of the present utility model, magnet steel 8 is the unistage type magnet steel of axial charging, and arrow is represented magnetizing direction.Between seal closure 5 and left yoke 6, the right yoke 7, and all adopt the seal welding mode to weld between left yoke 6, right yoke 7 and the mover skeleton 9, can not leak gas.Described mover skeleton 9 materials are nonmagnetic material, and have good solderability with pole material.
Claims (4)
1. moving-magnetic type linear motor for stirling refrigerator mover hermetically-sealed construction, it is characterized in that: at mover magnet steel outside environmental sealing cover, adopt welding manner to seal fully between seal closure and the mover yoke and between seal closure and the mover skeleton, mover magnet steel and refrigeration working medium are separated fully.
2. by the described moving-magnetic type linear motor for stirling refrigerator of claim 1 mover hermetically-sealed construction, it is characterized in that:
Described seal closure adopts nonmagnetic material.
3. by the described moving-magnetic type linear motor for stirling refrigerator of claim 1 mover hermetically-sealed construction, it is characterized in that:
Described magnet steel is left and right magnet steel, installs cushion block additional between left and right magnet steel.
4. by the described moving-magnetic type linear motor for stirling refrigerator of claim 3 mover hermetically-sealed construction, it is characterized in that:
Described cushion block adopts nonmagnetic material or nonmetallic materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201026631U CN201639465U (en) | 2010-01-27 | 2010-01-27 | Linear motor rotor sealing structure for moving-magnet type Stirling refrigerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201026631U CN201639465U (en) | 2010-01-27 | 2010-01-27 | Linear motor rotor sealing structure for moving-magnet type Stirling refrigerator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201639465U true CN201639465U (en) | 2010-11-17 |
Family
ID=43083971
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201026631U Expired - Fee Related CN201639465U (en) | 2010-01-27 | 2010-01-27 | Linear motor rotor sealing structure for moving-magnet type Stirling refrigerator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201639465U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103972997A (en) * | 2014-04-30 | 2014-08-06 | 宁波华斯特林电机制造有限公司 | Magnet assembly of Stirling motor |
| CN105553147A (en) * | 2016-01-28 | 2016-05-04 | 北京明正维元电机技术有限公司 | Alternating-current permanent magnet synchronous motor rotor for axial motion |
-
2010
- 2010-01-27 CN CN2010201026631U patent/CN201639465U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103972997A (en) * | 2014-04-30 | 2014-08-06 | 宁波华斯特林电机制造有限公司 | Magnet assembly of Stirling motor |
| CN105553147A (en) * | 2016-01-28 | 2016-05-04 | 北京明正维元电机技术有限公司 | Alternating-current permanent magnet synchronous motor rotor for axial motion |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101117 Termination date: 20180127 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |