CN203708062U - Moving-magnetic type linear motor for Stirling refrigerator - Google Patents
Moving-magnetic type linear motor for Stirling refrigerator Download PDFInfo
- Publication number
- CN203708062U CN203708062U CN201420041064.1U CN201420041064U CN203708062U CN 203708062 U CN203708062 U CN 203708062U CN 201420041064 U CN201420041064 U CN 201420041064U CN 203708062 U CN203708062 U CN 203708062U
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- magnetic pole
- magnet steel
- mover
- outer magnetic
- hole
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Abstract
The utility model relates to a moving-magnetic type linear motor for a Stirling refrigerator, which is characterized in that an outer magnetic pole is of a split structure and formed by splicing two semicircular magnetic poles, the outer magnetic pole is provided with an inner side wire leading hole and an outer side wire leading hole, an outer side circumference of the outer magnetic pole is provided with fixing holes, an inner side circumference of the outer magnetic pole is provided with notch grooves for reducing the eddy current loss, the internal part of the outer magnetic pole is provided with a wiring groove for placing an enameled wire coil assembly, and the inner magnetic pole is adhered to the outer diameter of a cylinder body. According to the utility model, the outer magnetic pole is formed by splicing the two semicircular magnetic poles so as to be convenient for installation and fixation, meanwhile, matching between the inner side wire leading hole and the outer side wire leading hole arranged in the outer magnetic pole and a coil frame wire outgoing hole can facilitate wire leading of the motor, the outer side circumference is provided with the fixing holes which can be used for positioning the outer magnetic pole firmly and reducing the weight, the notch groove arranged in the inner side circumference can reduce the eddy current loss, the inner magnetic pole is directly adhered to the outer diameter of the cylinder, and the mover mass is reduced, thereby enabling specific thrust of the motor to be increased, and improving the efficiency.
Description
Technical field
The utility model relates to a kind of sterlin refrigerator, is specifically related to a kind of sterlin refrigerator moving-magnetic type linear motor.
Background technology
Along with the develop rapidly of infrared detection technique, high temperature superconductor technology, Life Sci-Tech, aviation and space technology, demand to small-sized Cryo Refrigerator constantly increases, and the requirement of especially little, lightweight to refrigeration machine volume, high efficiency, reliability is more and more higher.The reciprocating piston compression motor driving with respect to traditional electric rotating machine, linear compressor can obtain higher efficiency and longer life-span, have advantages of that compactedness, lightness, efficiency are high simultaneously, therefore in cryogenic refrigeration, obtained more application, the performance of linear compressor depends on the performance of linear electric motors to a great extent, therefore day by day urgent to the demand of efficient techniques of linear motor.
Linear electric motors mainly contain the three types such as linear stepping motor, straight line synchronized oscillation motor, compound secondary linear motor, and the linear electric motors that use in the linear compressor of sterlin refrigerator and Stirling vascular refrigerator are generally straight line synchronized oscillation motor.Straight line synchronized oscillation motor has utilized electromagnetic force and mechanical resonance principle, directly pushing piston double vibrations carries out work, can be divided into again moving-coil type, moving-iron type and moving-magnetic type according to electromagnetic drive mode, its essential characteristic difference is that moving component is coil, iron core or magnet.
The stator of moving-magnetic type linear motor is made up of inside and outside iron core, is wound around circular excitation coil on outer iron core, forms magnetic pole in end, and mover is made up of permanent magnet, is connected with spring, piston by strutting piece.Stationary magnetic field two parts that the alternating magnetic field that work magnetic field is produced by magnet exciting coil and permanent magnet produce form, and under the interaction in two magnetic fields, produce axial actuating force, thus driven plunger linear reciprocating motion.This motor is with respect to first two electric machine structure compactness, and volume is little, and power is large, efficiency is high, but moving-magnetic type linear motor also exists mover quality larger, Working medium pollution, reliability is not high, and efficiency is on the low side, and small size and specific thrust such as can not take into account at the problem of aspect simultaneously.
Utility model content
The purpose of this utility model is to provide a kind of sterlin refrigerator moving-magnetic type linear motor, and this linear motor rotor quality is little, specific thrust is large, and efficiency is high, the high and compact conformation of reliability.
For achieving the above object, the utility model has adopted following technical scheme: comprise shell, in shell, be provided with mover, the inside of described mover is provided with internal magnetic pole, the outside of mover is provided with outer magnetic pole assembly, the two ends of described mover are respectively equipped with first, secondary diaphragm spring, described primary diaphragm spring is connected with mover by the first screw, described secondary diaphragm spring is connected with shell by the second screw, described outer magnetic pole assembly comprises outer magnetic pole and is entrenched in the enamel wire coil assembly in outer magnetic pole, enamel wire coil assembly comprises enamel wire coil, coil rack and insulating barrier, described enamel wire coil is wrapped on coil rack, insulating barrier is arranged on the periphery of enamel wire coil, described outer magnetic pole is fixed on shell by the 3rd screw, and described outer magnetic pole is Split type structure, be put together by two semicircle magnetic poles, outer magnetic pole is provided with inner leads hole and the outer leg hole for enamel wire coil lead-in wire, in the outer circumference of outer magnetic pole, offer fixing hole simultaneously, in the inside circumference of outer magnetic pole, have the break slot that reduces eddy current loss, outer magnetic pole inside is provided with the wiring groove of placing enamel wire coil assembly, described internal magnetic pole is bonded on the external diameter of cylinder block, and described internal magnetic pole is provided with the elongated slot along circumferential arrangement, the piston of described cylinder block is fixed on secondary diaphragm spring by the 4th screw.
Described mover is made up of mover skeleton, magnet steel, the magnet steel collar and magnet steel bottom baffle ring, on the external diameter of mover skeleton, be bonded with the magnet steel of annular, described magnet steel periphery is bonded with and prevents that magnet steel is along the magnet steel collar circumferentially coming off, and is also welded with the magnet steel bottom baffle ring that prevents that magnet steel from falling on described mover skeleton.
Described mover skeleton is made up of stainless steel material, mover skeleton is provided with the first lightening hole and lightening grooves, the first described lightening hole and lightening grooves are multiple along being circumferentially evenly arranged of mover skeleton respectively, the bottom of mover skeleton is also provided with the second lightening hole and piston location hole, described piston location hole matches with the piston of cylinder block, on described mover skeleton, is also provided with the screwed hole fixing with primary diaphragm spring.
The both sides of described primary diaphragm spring are respectively equipped with the first outer pad and the first internal gasket, and the both sides of described secondary diaphragm spring are respectively equipped with the second outer pad and the second internal gasket.
Described magnet steel radial magnetizing, its outer magnetic pole polarity is all S, and internal magnetic pole polarity is all N, and described magnet steel is made up of magnetic links 3-5.
The described magnet steel collar is made up of stainless steel material, and its thickness is 0.15mm-0.25mm.
Described magnet steel bottom baffle ring is made up of stainless steel material, and its thickness is 0.4mm-0.6mm.
Described outer magnetic pole is made up of magnetically soft alloy material.
Described coil rack is made up of nonmetallic materials, and offers wire hole on described coil rack, and the diameter of described enamel wire coil is 0.4mm-0.6mm.
As shown from the above technical solution, outer magnetic pole of the present utility model is assembled by two semicircle magnetic poles, be easy to install and fix, in arranging on outer magnetic pole simultaneously, outer leg hole can facilitate motor down-lead with coordinating of coil rack wire hole, outer circumference has fixing hole and can be used for fixedlying positioning of outer magnetic pole and alleviated weight, the break slot that inside circumference is offered can reduce eddy current loss, internal magnetic pole is directly bonded on cylinder block external diameter, alleviate mover quality, thereby the specific thrust of motor is increased, improved efficiency, because thereby reducing to make the vibration of refrigeration machine, motional inertia quality reduces simultaneously, improve the reliability of refrigerator operation.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation of the utility model internal magnetic pole;
Fig. 3 is the structural representation of the utility model mover;
Fig. 4 is the structural representation of the utility model magnet steel;
Fig. 5 is the structural representation of the utility model primary diaphragm spring;
Fig. 6 is the structural representation of the utility model secondary diaphragm spring;
Fig. 7 is the structural representation of the utility model outer magnetic pole;
Fig. 8 is the A-A cutaway view of Fig. 7;
Fig. 9 is the structural representation of the utility model enamel wire coil assembly.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described further:
As Fig. 1, Fig. 2, Fig. 5, Fig. 6, Fig. 7, Fig. 8, a kind of sterlin refrigerator moving-magnetic type linear motor shown in Fig. 9, comprise shell 1, in shell 1, be provided with mover, the inside of mover is provided with internal magnetic pole 2, the outside of mover is provided with outer magnetic pole assembly, the two ends of mover are respectively equipped with first, secondary diaphragm spring 3, 4, primary diaphragm spring 3 is connected with mover by the first screw 51, secondary diaphragm spring 4 is connected with shell 1 by the second screw 52, outer magnetic pole assembly comprises outer magnetic pole 61 and is entrenched in the enamel wire coil assembly in outer magnetic pole 61, enamel wire coil assembly comprises enamel wire coil 62, coil rack 63 and insulating barrier 64, enamel wire coil 62 is wrapped on coil rack 63, insulating barrier 64 is arranged on the periphery of enamel wire coil 62, outer magnetic pole 61 is fixed on shell 1 by the 3rd screw 53, and outer magnetic pole 61 is Split type structure, be put together by two semicircle magnetic poles, outer magnetic pole 61 is provided with the inner leads hole 65 and outer leg hole 66 that go between for enamel wire coil 62, in the outer circumference of outer magnetic pole 61, offer fixing hole 67 simultaneously, in the inside circumference of outer magnetic pole 61, have the break slot 68 that reduces eddy current loss, outer magnetic pole 61 inside are provided with the wiring groove 69 of placing enamel wire coil assembly, internal magnetic pole 2 is bonded on the external diameter of cylinder block 7, and described internal magnetic pole 2 is provided with the elongated slot 21 along circumferential arrangement, the piston 71 of cylinder block 7 is fixed on secondary diaphragm spring 4 by the 4th screw 54.The elongated slot 21 of offering on internal magnetic pole 2 can reduce internal magnetic pole quality, and internal magnetic pole is bonded on the external diameter of cylinder block, thereby can reduce the quality of mover, the specific thrust of motor is increased, improved efficiency, thus because reducing to make vibration, motional inertia quality reduces simultaneously, and refrigerator reliability increases.
Further, as shown in Figure 3, mover is made up of mover skeleton 81, magnet steel 82, the magnet steel collar 83 and magnet steel bottom baffle ring 84, on the external diameter of mover skeleton 81, be bonded with the magnet steel 82 of annular, magnet steel 82 peripheries are bonded with and prevent that magnet steel 82 is along the magnet steel collar 83 circumferentially coming off, and are also welded with the magnet steel bottom baffle ring 84 that prevents that magnet steel 82 from falling on mover skeleton 81.Be exactly that the magnet steel collar 83 is bonded in the effect of playing fixing magnet steel 82 on magnet steel 82 specifically, prevent that in motion process, magnet steel 82 comes off to peripheral direction, magnet steel bottom baffle ring 84 is welded on mover skeleton 81, prevents that in motion process, magnet steel 82 comes off to bottom.
Further, the magnet steel collar 83 is made up of stainless steel material, and for reduce the problem of the impact in magnetic field being considered to firmness simultaneously, preferred, the thickness of the magnet steel collar 83 is 0.15mm-0.25mm.Magnet steel bottom baffle ring 84 is made up of stainless steel material, preferred, considers the problem of firmness for minimizing quality time, and the thickness of magnet steel bottom baffle ring is 0.4mm-0.6mm.By the further effect of the magnet steel collar, magnet steel bottom baffle ring, increase working life and the reliability of motor.
Further, mover skeleton 81 is made up of stainless steel material, mover skeleton 81 is provided with the first lightening hole 85 and lightening grooves 86, the first lightening hole 85 is multiple along being circumferentially evenly arranged of mover skeleton 81 respectively with lightening grooves 86, the bottom of mover skeleton 81 is also provided with the second lightening hole 87 and piston location hole 88, piston location hole 88 matches with the piston 71 of cylinder block, is also provided with the screwed hole 89 fixing with primary diaphragm spring 3 on mover skeleton 81.
Further, the both sides of primary diaphragm spring 3 are respectively equipped with the first outer pad 31 and the first internal gasket 32, and the both sides of secondary diaphragm spring 4 are respectively equipped with the second outer pad 41 and the second internal gasket 42.Namely the 4th screw is connected through the internal diameter of secondary diaphragm spring and the piston of cylinder block, together with secondary diaphragm spring overlaps on the second outer pad, the second internal gasket and be fixed on shell by the second screw, together with primary diaphragm spring overlaps on the first outer pad, the first internal gasket and by the first screw, be connected with the screwed hole 89 on mover skeleton.By with being connected and fixed of first, second diaphragm spring, can guarantee accurately fixedlying positioning of mover, piston, prevent radial motion.
Further, as shown in Figure 4, magnet steel 82 radial magnetizings, its outer magnetic pole polarity is all S, and internal magnetic pole polarity is all N, and magnet steel 82 is made up of magnetic links 3-5.
Further, outer magnetic pole 61 is made up of magnetically soft alloy material.
Further, coil rack 63 is made up of nonmetallic materials, and on coil rack 63, offer wire hole 6, wire hole facilitates the inner side outlet of enamel wire coil, when installation, wire hole coordinates to facilitate outlet with inner leads hole 65, enamel wire coil embed wholly, in wiring groove, can greatly reduce Working medium pollution simultaneously.Preferably, the diameter of enamel wire coil 62 is 0.4mm-0.6mm.
The beneficial effects of the utility model are:
1, outer magnetic pole is assembled by two semicircle magnetic poles, be easy to install and fix, in arranging on outer magnetic pole simultaneously, outer leg hole can facilitate motor down-lead with coordinating of coil rack wire hole, outer circumference has fixing hole and can be used for fixedlying positioning of outer magnetic pole and alleviated weight, the break slot that inside circumference is offered can reduce eddy current loss, internal magnetic pole is directly bonded on cylinder block external diameter, alleviate mover quality, thereby the specific thrust of motor is increased, improved efficiency, because thereby reducing to make the vibration of motor, motional inertia quality reduces simultaneously, improve motor reliability of operation.
2, the side opening of mover skeleton is provided with the first lightening hole, lightening grooves, and bottom has the second lightening hole, has alleviated the quality of mover, and the piston location hole of mover skeleton and the screwed hole of fixed piston can make piston, mover accurately locate simultaneously; Magnet steel adopts high energy permanent magnetic material to make, stick with glue knot in mover skeleton outside, simultaneously by the effect of the magnet steel collar and magnet steel bottom baffle ring, can ensure magnet steel difficult drop-off, thereby strengthen the reliability of motor, again by with being connected and fixed of first, second diaphragm spring, can guarantee that mover, piston accurately fixedly positioning, and prevent radial motion.
Above-described embodiment is described preferred implementation of the present utility model; not scope of the present utility model is limited; do not departing under the prerequisite of the utility model design spirit; various distortion and improvement that those of ordinary skill in the art make the technical solution of the utility model, all should fall in the definite protection range of the utility model claims.
Claims (9)
1. a sterlin refrigerator moving-magnetic type linear motor, it is characterized in that: comprise shell (1), shell is provided with mover in (1), the inside of described mover is provided with internal magnetic pole (2), the outside of mover is provided with outer magnetic pole assembly, the two ends of described mover are respectively equipped with first, secondary diaphragm spring (3, 4), described primary diaphragm spring (3) is connected with mover by the first screw (51), described secondary diaphragm spring (4) is connected with shell (1) by the second screw (52), described outer magnetic pole assembly comprises outer magnetic pole (61) and is entrenched in the enamel wire coil assembly in outer magnetic pole (61), enamel wire coil assembly comprises enamel wire coil (62), coil rack (63) and insulating barrier (64), described enamel wire coil (62) is wrapped on coil rack (63), insulating barrier (64) is arranged on the periphery of enamel wire coil (62), described outer magnetic pole (61) is fixed on shell (1) by the 3rd screw (53), and described outer magnetic pole (61) is Split type structure, be put together by two semicircle magnetic poles, outer magnetic pole (61) is provided with the inner leads hole (65) and outer leg hole (66) for enamel wire coil (62) lead-in wire, in the outer circumference of outer magnetic pole (61), offer fixing hole (67) simultaneously, in the inside circumference of outer magnetic pole (61), have the break slot (68) that reduces eddy current loss, outer magnetic pole (61) inside is provided with the wiring groove (69) of placing enamel wire coil assembly, described internal magnetic pole (2) is bonded on the external diameter of cylinder block (7), and described internal magnetic pole (2) is provided with the elongated slot (21) along circumferential arrangement, the piston (71) of described cylinder block (7) is fixed on secondary diaphragm spring (4) by the 4th screw (54).
2. sterlin refrigerator moving-magnetic type linear motor according to claim 1, it is characterized in that: described mover is made up of mover skeleton (81), magnet steel (82), the magnet steel collar (83) and magnet steel bottom baffle ring (84), on the external diameter of mover skeleton (81), be bonded with the magnet steel (82) of annular, described magnet steel (82) periphery is bonded with and prevents that magnet steel (82) is along the magnet steel collar (83) circumferentially coming off, and is also welded with the magnet steel bottom baffle ring (84) that prevents that magnet steel (82) from falling on described mover skeleton (81).
3. sterlin refrigerator moving-magnetic type linear motor according to claim 2, it is characterized in that: described mover skeleton (81) is made up of stainless steel material, mover skeleton (81) is provided with the first lightening hole (85) and lightening grooves (86), described the first lightening hole (85) is multiple along being circumferentially evenly arranged of mover skeleton (81) respectively with lightening grooves (86), the bottom of mover skeleton (81) is also provided with the second lightening hole (87) and piston location hole (88), described piston location hole (88) matches with the piston (71) of cylinder block, on described mover skeleton (81), be also provided with the screwed hole (89) fixing with primary diaphragm spring (3).
4. sterlin refrigerator moving-magnetic type linear motor according to claim 1, it is characterized in that: the both sides of described primary diaphragm spring (3) are respectively equipped with the first outer pad (31) and the first internal gasket (32), the both sides of described secondary diaphragm spring (4) are respectively equipped with the second outer pad (41) and the second internal gasket (42).
5. sterlin refrigerator moving-magnetic type linear motor according to claim 2, is characterized in that: described magnet steel (82) radial magnetizing, and its outer magnetic pole polarity is all S, and internal magnetic pole polarity is all N, and described magnet steel (82) is made up of magnetic links 3-5.
6. sterlin refrigerator moving-magnetic type linear motor according to claim 2, is characterized in that: the described magnet steel collar (83) is made up of stainless steel material, and its thickness is 0.15mm-0.25mm.
7. sterlin refrigerator moving-magnetic type linear motor according to claim 2, is characterized in that: described magnet steel bottom baffle ring (84) is made up of stainless steel material, and its thickness is 0.4mm-0.6mm.
8. sterlin refrigerator moving-magnetic type linear motor according to claim 1, is characterized in that: described outer magnetic pole (61) is made up of magnetically soft alloy material.
9. sterlin refrigerator moving-magnetic type linear motor according to claim 1, it is characterized in that: described coil rack (63) is made up of nonmetallic materials, and on described coil rack (63), offer wire hole (6), the diameter of described enamel wire coil (62) is 0.4mm-0.6mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420041064.1U CN203708062U (en) | 2014-01-23 | 2014-01-23 | Moving-magnetic type linear motor for Stirling refrigerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420041064.1U CN203708062U (en) | 2014-01-23 | 2014-01-23 | Moving-magnetic type linear motor for Stirling refrigerator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203708062U true CN203708062U (en) | 2014-07-09 |
Family
ID=51058440
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420041064.1U Withdrawn - After Issue CN203708062U (en) | 2014-01-23 | 2014-01-23 | Moving-magnetic type linear motor for Stirling refrigerator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203708062U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103762816B (en) * | 2014-01-23 | 2016-06-01 | 中国电子科技集团公司第十六研究所 | Sterlin refrigerator moving-magnetic type linear motor |
| CN108173409A (en) * | 2017-12-28 | 2018-06-15 | 陕西仙童科技有限公司 | A kind of Linearkompressor using moving-magnetic type linear motor |
| CN108336886A (en) * | 2018-02-22 | 2018-07-27 | 方舟 | A kind of moving-magnetic type linear motor for compressor |
| CN108400691A (en) * | 2018-02-22 | 2018-08-14 | 方舟 | A kind of compressor moving-magnetic type linear motor and apply its acoustic energy refrigeration machine |
| CN117477891A (en) * | 2023-12-28 | 2024-01-30 | 燕山大学 | Rotor housing with slotting structure and magnetic shaft type linear motor |
-
2014
- 2014-01-23 CN CN201420041064.1U patent/CN203708062U/en not_active Withdrawn - After Issue
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103762816B (en) * | 2014-01-23 | 2016-06-01 | 中国电子科技集团公司第十六研究所 | Sterlin refrigerator moving-magnetic type linear motor |
| CN108173409A (en) * | 2017-12-28 | 2018-06-15 | 陕西仙童科技有限公司 | A kind of Linearkompressor using moving-magnetic type linear motor |
| CN108336886A (en) * | 2018-02-22 | 2018-07-27 | 方舟 | A kind of moving-magnetic type linear motor for compressor |
| CN108400691A (en) * | 2018-02-22 | 2018-08-14 | 方舟 | A kind of compressor moving-magnetic type linear motor and apply its acoustic energy refrigeration machine |
| CN117477891A (en) * | 2023-12-28 | 2024-01-30 | 燕山大学 | Rotor housing with slotting structure and magnetic shaft type linear motor |
| CN117477891B (en) * | 2023-12-28 | 2024-03-05 | 燕山大学 | Rotor housing with slotting structure and magnetic shaft type linear motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140709 Effective date of abandoning: 20160601 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |