CN105262298A - Linear motor and compressor equipped with same - Google Patents

Linear motor and compressor equipped with same Download PDF

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Publication number
CN105262298A
CN105262298A CN201510527026.6A CN201510527026A CN105262298A CN 105262298 A CN105262298 A CN 105262298A CN 201510527026 A CN201510527026 A CN 201510527026A CN 105262298 A CN105262298 A CN 105262298A
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China
Prior art keywords
mover
magnet
cylinder
piston
spring
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Pending
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CN201510527026.6A
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Chinese (zh)
Inventor
朱绍伟
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Tongji University
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Tongji University
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Priority to CN201510527026.6A priority Critical patent/CN105262298A/en
Publication of CN105262298A publication Critical patent/CN105262298A/en
Pending legal-status Critical Current

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  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
  • Linear Motors (AREA)

Abstract

The invention relates to a linear motor and a compressor equipped with the same. The linear motor comprises an outer stator (11), a coil (12), an inner stator (13), and a mover I (150a) and a mover II (150b) arranged between the outer stator (11) and the inner stator (13); the compressor comprises a piston I (21a), a piston II (21b), a magnet bracket I (22a), a magnet bracket II (22b), a spring I (23a), a spring II (23b), a gas outlet (24) and an air cylinder (25); when the coil (12) is electrified, the mover I (150a) and the mover II (150b) are subjected to opposite forces to move in opposite to drive the piston I (21a) and the piston II (21b) to compress the gas in the air cylinder (25); the compressed gas is discharged from the gas outlet (24); and the piston I (21a) and the piston II (21b) are reset under the actions of the spring I (23a) and the spring II (23b). Compared with the prior art, the linear motor and the compressor have the advantages of good balance performance, small vibration and low costs.

Description

A kind of linear electric motors and there is the compressor of these linear electric motors
Technical field
The invention belongs to field of electromechanical equipment, relate to motor and compressor, particularly relate to a kind of linear electric motors and there is the compressor of these linear electric motors.
Background technology
Linear electric motors also claim linear electric machine, linear motor, line motor, pusher motor.The most frequently used linear electric motors type is flat and U-type groove formula, and tubular type.Typical case's composition of coil is three-phase, has Hall element to realize brushless commutation.
It is flattened that linear electric motors are often simply described as electric rotating machine, and operation principle is identical.Mover epoxy material is made coil compression together. and, track is that magnet (normally high-octane rare-earth magnet) is fixed on steel. the mover of motor comprises coil windings, Hall element circuit board, electro-hot regulator (temperature sensor monitors temperature) and electrical interface.In electric rotating machine, mover and stator need swivel bearing to support mover to ensure the air gap of relative motion part.Same, linear electric motors need line slideway to keep the position of mover in the magnetic field that track produces.To be arranged on feedback position on axle the same with the encoder of rotating servo motor, and linear electric motors need feedback device--the linear encoder feeding back linear position, and it can the directly position of sensing lead thus the positional precision of raising load.
Linear electric motors can think that electric rotating machine is out of shape in the one of configuration aspects, and it can be regarded as an electric rotating machine and radially cuts open, then evens up differentiation and forms.Along with the high speed development of automatic control technology and microcomputer, the positioning precision of all kinds of automatic control system is had higher requirement, in this case, the actuating device of the linear motion of a set of mapping device composition added by traditional electric rotating machine, far can not meet the requirement of modern control system, for this reason, world many countries all at research, development and applicable line motor, makes the application of linear electric motors more and more wider.
In linear motor-driven compressor or linear motor, mover reciprocating motion, can produce sharp pounding, in order to reduce vibrations, is generally made of one by two opposed compressors.Do cost so very high.In order to address this problem, the mover of linear electric motors is designed to two by research staff, and its direction of motion is contrary, thus homeostasis.But the linear electric motors of existing employing two movers, are all generally adopt motor to drive mover motion, although reduce the use of mechanical transmission mechanism, fundamentally can not reduce vibration, save cost.
Summary of the invention
Object of the present invention be exactly provide to overcome defect that above-mentioned prior art exists a kind of structure simple, vibrate little, linear electric motors that cost is low and there is the compressor of these linear electric motors.
Object of the present invention can be achieved through the following technical solutions:
Technical solution of the present invention one:
A kind of linear electric motors, comprise outer stator, coil, interior stator, mover one and mover two, described coil is arranged in outer stator, it is characterized in that, described mover one and mover two are arranged between outer stator and interior stator, and magnetic pole is different inside mover one and mover two, after coil electricity, mover one and mover two are subject to contrary power, relative or counter motion.
Described mover one and mover two are magnet or soft iron, or the combination of magnet and soft iron.
Preferably: described mover one is connected to form by magnet and magnet, and wherein magnet is arranged on magnet outer end.
Further preferably: described mover one is used alone magnet, or is used alone magnet, or be the assembly of magnet and magnet, the wherein sub-available iron of magnet, as soft iron replaces, magnet is available iron also, as soft iron replaces.
Preferably: described mover two is connected to form by magnet and magnet, and wherein magnet is arranged on magnet outer end.
Further preferably: described mover two is used alone magnet, or is used alone magnet, or be the assembly of magnet and magnet, wherein magnet is iron, and magnet is iron or magnet.
Inside described mover one and mover two, magnetic pole is different is on same direction, and the magnetic pole of mover one is SN, and the magnetic pole of mover two is also SN.
Technical solution of the present invention two:
Linear electric motors as described in technical scheme one are used for compressor, this compressor comprises piston one, piston two, magnet holder one, magnet holder two, spring one, spring two, gas vent, cylinder, described mover one is fixed in magnet holder one, described mover two is fixed in magnet holder two, described cylinder is arranged in interior stator, described piston one is positioned at cylinder one end, and be connected with spring one through magnet holder one, described piston two is positioned at the cylinder other end, and be connected with spring two through magnet holder two, described gas vent is through cylinder, outer stator, the through hole of coil and interior stator,
After coil electricity, mover one and mover two are subject to contrary power, relative motion, drive the gas in piston one, piston two relative motion compresses cylinder, Compressed Gas is discharged by gas vent, and piston one, piston two reset respectively under the active force of spring one, spring two; Or after coil electricity, mover one and mover two are subject to contrary power, counter motion.
Technical solution of the present invention three:
Linear electric motors as described in technical scheme one are used for the compressor of another kind of structure, this compressor comprises piston one, piston two, magnet holder one, magnet holder two, spring one, spring two, gas vent one, gas vent two, cylinder one, cylinder two, described mover one is fixed in magnet holder one, described mover two is fixed in magnet holder two, described cylinder one, cylinder two is separately positioned on linear electric motors two ends, described piston one one end is placed in cylinder one, the other end connects magnet holder one, described piston two one end is placed in cylinder two, the other end connects magnet holder two, described gas vent one is communicated with cylinder one, described gas vent two is communicated with cylinder two, described spring one connects piston one, described spring two connects piston two,
After coil electricity, mover one and mover two are subject to contrary power, relative motion, respectively extrusion spring one, spring two, then the gas under the active force of spring one, spring two in compression cylinder one, cylinder two, Compressed Gas is discharged respectively by gas vent one, gas vent two; Or after coil electricity, mover one and mover two are subject to contrary power, counter motion, the gas respectively in compression cylinder one, cylinder two.
Interior stator fixture is also provided with between described outer stator and interior stator.
Compared with prior art, the present invention has the following advantages and beneficial effect:
(1) the present invention is by being designed to two by the mover of linear electric motors, and two movers are the zoarium of magnet or electromagnet or magnet and electromagnet, pass through coil electricity, make the magnetic pole of the sides adjacent of two movers different, and produce attraction relative motion, make two movers receive contrary power, synchronous relative motion, thus homeostasis, greatly reduce vibrations, and reduce cost.
(2) linear electric motors of the present invention are used in compressor, two movers move thus drive piston movement, thus compression cylinder produces Compressed Gas, and the motion due to piston realizes under the effect of magnetic force, change traditional mechanical movement, therefore fundamentally reduce vibrations.
Accompanying drawing explanation
Fig. 1 is the structural representation of the first linear electric motors in embodiment 1;
Fig. 2 is the end view of Fig. 1;
Fig. 3 is the structural representation of mover one and mover two in embodiment 1;
Fig. 4 is the structural representation of the second linear electric motors of embodiment 2;
Fig. 5 is the structural representation of the third linear electric motors of embodiment 3;
Fig. 6 is the structural representation of the first compressor of embodiment 4;
Fig. 7 is the structural representation of the second compressor of embodiment 5;
Number in the figure: 11 is outer stator, 12 is coil, and 13 is interior stator, 14a is magnet, and 15a is magnet, and 150a is mover one, 150b is mover two, and 16 is interior stator fixture, and 21a is piston one, 21b is piston two, 22a be magnet holder one, 22b is magnet holder two, 23a is spring one, 23b is spring two, and 24 is gas vent, and 25 is cylinder.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail.
Embodiment 1
A kind of linear electric motors as shown in FIG. 1 to 3, comprise outer stator 11, coil 12, interior stator 13, mover one 150a and mover two 150b, coil 12 is arranged in outer stator 11, mover one 150a and mover two 150b is arranged between outer stator 11 and interior stator 13, described mover one 150a is connected to form by the sub-14a of magnet and magnet 15a, wherein the sub-14a of magnet is arranged on magnet 15a outer end, mover two 150b is also connected to form by the sub-14b of magnet and magnet 15b, and wherein the sub-14b of magnet is arranged on magnet 15b outer end.Magnetic pole inside the inner side of the inner side of mover one 150a and magnet 15a and mover two 150b and magnet 15b is different, and namely wherein side is S pole, and opposite side is N pole, as shown in Figure 3.
Before coil 12 is energized, between two different magnetic poles, there is certain distance; After coil 12 is energized, under magnetic fields, mover one 150a and mover two 150b is subject to contrary power, relative or counter motion.
Embodiment 2
A kind of linear electric motors as shown in Figure 4, comprise outer stator 11, coil 12, interior stator 13, mover one 150a and mover two 150b, wherein mover one 150a is used alone the sub-14a of magnet, and mover two 150b is used alone the sub-14b of magnet, the sub-14a of magnet and the sub-14b available iron of magnet, as soft iron replaces.All the other are identical with embodiment 1.
Embodiment 3
A kind of linear electric motors as shown in Figure 5, comprise outer stator 11, coil 12, interior stator 13, mover one 150a and mover two 150b, wherein mover one 150a is used alone magnet 15a, and mover two 150b is used alone magnet 15b, magnet 15a and magnet 15b available iron, as soft iron replaces.All the other are identical with embodiment 1.
Embodiment 4
Described linear electric motors arbitrary in embodiment 1 ~ 3 are used for compressor, utilize mover one 150a of motor and mover two 150b reciprocating motion to carry out Compressed Gas.As shown in Figure 6, the linear electric motors in the present embodiment adopt the linear electric motors in embodiment 1.The present embodiment compressor comprises piston one 21a, piston two 21b, magnet holder one 22a, magnet holder two 22b, spring one 23a, spring two 23b, gas vent 24 and cylinder 25, described mover one 150a is fixed on magnet holder one 22a, described mover two 150b is fixed on magnet holder two 22b, described cylinder 25 is arranged in interior stator 13, described piston one 21a is positioned at cylinder 25 one end, and be connected with spring one 23a through magnet holder one 22a, described piston two 21b is positioned at cylinder 25 other end, and be connected with spring two 23b through magnet holder two 22b, described gas vent 24 is through cylinder 25, outer stator 11, the through hole of coil 12 and interior stator 13,
After coil 12 is energized, mover one 150a and mover two 150b is subject to contrary power, relative motion, drive the gas in piston one 21a, piston two 21b relative motion compresses cylinder 25, Compressed Gas is discharged by gas vent 24, and piston one 21a, piston two 21b reset respectively under the active force of spring one 23a, spring two 23b; Or after coil 12 is energized, mover one 150a and mover two 150b is subject to contrary power, counter motion.
Embodiment 5
Described linear electric motors arbitrary in embodiment 1 ~ 3 are used for another kind of compressor, utilize mover one 150a of motor and mover two 150b reciprocating motion to carry out Compressed Gas equally.As shown in Figure 7, the present embodiment cathetus motor adopts the linear electric motors in embodiment 1, is also provided with interior stator fixture 16 between the outer stator 11 of these linear electric motors and interior stator 13.
The present embodiment compressor comprises piston one 21a, piston two 21b, magnet holder one 22a, magnet holder two 22b, spring one 23a, spring two 23b, gas vent one 24a, gas vent two 24b, cylinder one 25a, cylinder two 25b, described mover one 150a is fixed on magnet holder one 22a, described mover two 150b is fixed on magnet holder two 22b, described cylinder one 25a, cylinder two 25b is separately positioned on linear electric motors two ends, described piston one 21a one end is placed in cylinder one 25a, the other end connects magnet holder one 22a, described piston two 21b one end is placed in cylinder two 25b, the other end connects magnet holder two 22b, described gas vent one 24a is communicated with cylinder one 25a, described gas vent two 24b is communicated with cylinder two 25b, described spring one 23a connects piston one 21a, described spring two 23b connects piston two 21b,
After coil 12 is energized, mover one 150a and mover two 150b is subject to contrary power, relative motion, extrusion spring one 23a, spring two 23b respectively, then the gas under the active force of spring one 23a, spring two 23b in compression cylinder one 25a, cylinder two 25b, Compressed Gas is discharged respectively by gas vent one 24a, gas vent two 24b; Or after coil 12 is energized, mover one 150a and mover two 150b is subject to contrary power, counter motion, the gas respectively in compression cylinder one 25a, cylinder two 25b.
Above-mentioned is can understand and use invention for ease of those skilled in the art to the description of embodiment.Person skilled in the art obviously easily can make various amendment to these embodiments, and General Principle described herein is applied in other embodiments and need not through performing creative labour.Therefore, the invention is not restricted to above-described embodiment, those skilled in the art, according to announcement of the present invention, do not depart from improvement that scope makes and amendment all should within protection scope of the present invention.

Claims (10)

1. linear electric motors, comprise outer stator (11), coil (12), interior stator (13), mover one (150a) and mover two (150b), described coil (12) is arranged in outer stator (11), it is characterized in that, described mover one (150a) and mover two (150b) are arranged between outer stator (11) and interior stator (13), and mover one (150a) and mover two (150b) inner side magnetic pole different, after coil (12) energising, mover one (150a) and mover two (150b) are subject to contrary power, relatively or counter motion.
2. a kind of linear electric motors according to claim 1, is characterized in that, described mover one (150a) and mover two (150b) are magnet or soft iron, or the combination of magnet and soft iron.
3. a kind of linear electric motors according to claim 1 and 2, it is characterized in that, described mover one (150a) is connected to form by magnet (14a) and magnet (15a), and wherein magnet (14a) is arranged on magnet (15a) outer end.
4. a kind of linear electric motors according to claim 3, it is characterized in that, described mover one (150a) is used alone magnet (14a), or be used alone magnet (15a), or be the assembly of magnet (14a) and magnet (15a), wherein magnet (14a) is iron, and magnet (15a) is iron or magnet.
5. a kind of linear electric motors according to claim 1 and 2, it is characterized in that, described mover two (150b) is connected to form by magnet (14b) and magnet (15b), and wherein magnet (14b) is arranged on magnet (15b) outer end.
6. a kind of linear electric motors according to claim 5, it is characterized in that, described mover two (150b) is used alone magnet (14b), or be used alone magnet (15b), or be the assembly of magnet (14b) and magnet (15b), wherein magnet (14b) is iron, and magnet (15b) is iron or magnet.
7. a kind of linear electric motors according to claim 1, it is characterized in that, described mover one (150a) and mover two (150b) inner side magnetic pole different be on same direction, the magnetic pole of mover one (150a) is SN, and the magnetic pole of mover two (150b) is also SN.
8. one kind has the compressor of linear electric motors according to claim 1, it is characterized in that, comprise piston one (21a), piston two (21b), magnet holder one (22a), magnet holder two (22b), spring one (23a), spring two (23b), gas vent (24), cylinder (25), described mover one (150a) is fixed in magnet holder one (22a), described mover two (150b) is fixed in magnet holder two (22b), described cylinder (25) is arranged in interior stator (13), described piston one (21a) is positioned at cylinder (25) one end, and be connected with spring one (23a) through magnet holder one (22a), described piston two (21b) is positioned at cylinder (25) other end, and be connected with spring two (23b) through magnet holder two (22b), described gas vent (24) is through cylinder (25), outer stator (11), the through hole of coil (12) and interior stator (13),
After coil (12) energising, mover one (150a) and mover two (150b) are subject to contrary power, relative motion, drive the gas in piston one (21a), piston two (21b) relative motion compresses cylinder (25), Compressed Gas is discharged by gas vent (24), and piston one (21a), piston two (21b) reset respectively under the active force of spring one (23a), spring two (23b); Or after coil (12) energising, mover one (150a) and mover two (150b) are subject to contrary power, counter motion.
9. one kind has the compressor of linear electric motors according to claim 1, it is characterized in that, comprise piston one (21a), piston two (21b), magnet holder one (22a), magnet holder two (22b), spring one (23a), spring two (23b), gas vent one (24a), gas vent two (24b), cylinder one (25a), cylinder two (25b), described mover one (150a) is fixed in magnet holder one (22a), described mover two (150b) is fixed in magnet holder two (22b), described cylinder one (25a), cylinder two (25b) is separately positioned on linear electric motors two ends, described piston one (21a) one end is placed in cylinder one (25a), the other end connects magnet holder one (22a), described piston two (21b) one end is placed in cylinder two (25b), the other end connects magnet holder two (22b), described gas vent one (24a) is communicated with cylinder one (25a), described gas vent two (24b) is communicated with cylinder two (25b), described spring one (23a) connects piston one (21a), described spring two (23b) connects piston two (21b),
After coil (12) energising, mover one (150a) and mover two (150b) are subject to contrary power, relative motion, extrusion spring one (23a), spring two (23b) respectively, then the gas under the active force of spring one (23a), spring two (23b) in compression cylinder one (25a), cylinder two (25b), Compressed Gas is discharged respectively by gas vent one (24a), gas vent two (24b); Or after coil (12) energising, mover one (150a) and mover two (150b) are subject to contrary power, counter motion, the gas respectively in compression cylinder one (25a), cylinder two (25b).
10. compressor according to claim 9, is characterized in that, is also provided with interior stator fixture (16) between described outer stator (11) and interior stator (13).
CN201510527026.6A 2015-08-25 2015-08-25 Linear motor and compressor equipped with same Pending CN105262298A (en)

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CN201510527026.6A CN105262298A (en) 2015-08-25 2015-08-25 Linear motor and compressor equipped with same

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Application Number Priority Date Filing Date Title
CN201510527026.6A CN105262298A (en) 2015-08-25 2015-08-25 Linear motor and compressor equipped with same

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2658629C1 (en) * 2017-02-20 2018-06-22 Федеральное государственное бюджетное образовательное учреждение высшего образования "Морской государственный университет имени адмирала Г.И. Невельского" Electric motor-compressor
RU2792183C1 (en) * 2022-12-22 2023-03-20 федеральное государственное автономное образовательное учреждение высшего образования "Пермский национальный исследовательский политехнический университет" Compressor based on a linear motor

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002168174A (en) * 2000-12-01 2002-06-14 Showa Electric Wire & Cable Co Ltd Linear motor compressor
JP2004092618A (en) * 2002-09-04 2004-03-25 Fuji Electric Systems Co Ltd Compressor
JP2006174622A (en) * 2004-12-16 2006-06-29 Daikin Ind Ltd Linear motor and compressor
JP2006280156A (en) * 2005-03-30 2006-10-12 Aisin Seiki Co Ltd Linear motor, linear compressor using the same, and cold accumulating refrigerator
CN101389862A (en) * 2006-02-28 2009-03-18 Bsh博世和西门子家用器具有限公司 Method for adjusting a piston in a linear compressor

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002168174A (en) * 2000-12-01 2002-06-14 Showa Electric Wire & Cable Co Ltd Linear motor compressor
JP2004092618A (en) * 2002-09-04 2004-03-25 Fuji Electric Systems Co Ltd Compressor
JP2006174622A (en) * 2004-12-16 2006-06-29 Daikin Ind Ltd Linear motor and compressor
JP2006280156A (en) * 2005-03-30 2006-10-12 Aisin Seiki Co Ltd Linear motor, linear compressor using the same, and cold accumulating refrigerator
CN101389862A (en) * 2006-02-28 2009-03-18 Bsh博世和西门子家用器具有限公司 Method for adjusting a piston in a linear compressor

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2658629C1 (en) * 2017-02-20 2018-06-22 Федеральное государственное бюджетное образовательное учреждение высшего образования "Морской государственный университет имени адмирала Г.И. Невельского" Electric motor-compressor
RU2792183C1 (en) * 2022-12-22 2023-03-20 федеральное государственное автономное образовательное учреждение высшего образования "Пермский национальный исследовательский политехнический университет" Compressor based on a linear motor

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Application publication date: 20160120