CN102843013A - Cylindrical magnetic flux switching type oscillation motor - Google Patents
Cylindrical magnetic flux switching type oscillation motor Download PDFInfo
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- CN102843013A CN102843013A CN2012103231719A CN201210323171A CN102843013A CN 102843013 A CN102843013 A CN 102843013A CN 2012103231719 A CN2012103231719 A CN 2012103231719A CN 201210323171 A CN201210323171 A CN 201210323171A CN 102843013 A CN102843013 A CN 102843013A
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- 230000004907 flux Effects 0.000 title claims abstract description 52
- 230000005291 magnetic effect Effects 0.000 title abstract description 23
- 230000010355 oscillation Effects 0.000 title abstract 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 38
- 238000004804 winding Methods 0.000 claims abstract description 33
- 239000002131 composite material Substances 0.000 claims description 4
- 230000005415 magnetization Effects 0.000 claims description 3
- 229910000976 Electrical steel Inorganic materials 0.000 claims description 2
- 229910000831 Steel Inorganic materials 0.000 claims description 2
- 230000005294 ferromagnetic effect Effects 0.000 claims description 2
- 239000007787 solid Substances 0.000 claims description 2
- 239000010959 steel Substances 0.000 claims description 2
- 230000005347 demagnetization Effects 0.000 abstract description 3
- 230000002427 irreversible effect Effects 0.000 abstract description 3
- 229910001220 stainless steel Inorganic materials 0.000 abstract description 3
- 239000010935 stainless steel Substances 0.000 abstract description 3
- 239000002657 fibrous material Substances 0.000 abstract 1
- 230000017525 heat dissipation Effects 0.000 abstract 1
- 229920000914 Metallic fiber Polymers 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
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Abstract
The invention discloses a cylindrical magnetic flux switching type oscillation motor, which belongs to the field of motors and is used for solving the problems of irreversible demagnetization of a permanent magnet, limit on the motor power output and reduction in the power density possibly caused by difficulty in heat dissipation and temperature rise due to the adoption of a fixing device made of stainless steel or a nonmetallic fiber material on the secondary stage of the conventional permanent magnet linear oscillation motor. The cylindrical magnetic flux switching type oscillation motor comprises a primary stage and a secondary stage, wherein the primary stage is arranged outside the secondary stage, and comprises a middle primary iron core, an armature winding, two end part primary iron cores and two permanent magnet rings; the section of the circular middle primary iron core is U-shaped, and faces the secondary stage; the armature winding is embedded into an opening; the two side end faces of the middle primary iron core are provided with one permanent magnet ring respectively; the outer side end face of each permanent magnet ring is provided with one end part primary iron core; the two permanent magnet rings are magnetized in parallel, and are opposite to each other; the secondary stage comprises a secondary iron core and a secondary shaft; the secondary iron core is fixed on the secondary shaft; and the section of the secondary core is U-shaped, and faces the primary stage.
Description
Technical field
The present invention relates to cylinder type flux suitching type vibration motor, belong to machine field.
Background technology
In traditional rolling piston compressor; Rotatablely moving of rotor is transformed into rectilinear motion through crankshaft connecting rod system, in this rotatablely moves straight-line conversion process, in the fricting movement of many energy consumptions between piston and cylinder, crankshaft handle and connecting rod; This has directly influenced the efficient of system; Meanwhile, also there is complex structure in rolling piston compressor, the shortcoming that noise is big.Yet linear compressor utilizes the linear motor driving compressor piston to do linear reciprocating motion, and having saved to rotatablely move is converted into the conversion equipment of straight reciprocating motion, linear vibration motor and compressor is combined, very high-efficiency and economic.Adopt the linear compressor of linear vibration motor, simple in structure, easy to process, reliability is high, noise is little, for ease of maintenaince.Therefore Application Research just has realistic meaning in the efficient linear vibration motor of linear compressor.
Be compared to traditional based on induction machine, the linear electric motors of switched reluctance machines principle, permanent magnet linear vibration motor is big with its power density, advantages such as efficient height have received to be paid close attention to widely and uses.In traditional permanent magnet linear vibration motor; Permanent magnet mainly is installed on linear electric motors secondary; Usually the influence that permanent magnet is vibrated when preventing high-speed cruising and coming off; The fixture that stainless steel or non-metallic fibers material are processed all is housed on secondary, cause the heat radiation difficulty, and temperature rise may causes finally permanent magnet generation irreversible demagnetization, restriction motor to exert oneself, reduce power density etc.
Summary of the invention
The present invention seeks in order to solve the fixture that existing permanent magnet linear vibration motor dress stainless steel or non-metallic fibers material on secondary are processed; Cause the heat radiation difficulty; And temperature rise may finally cause permanent magnet generation irreversible demagnetization, restriction motor to exert oneself, reduce the problem of power density, has proposed a kind of cylinder type flux suitching type vibration motor.
Cylinder type flux suitching type vibration motor according to the invention, it comprises primary and secondary, elementaryly is arranged on secondary outside, and air gap is radially arranged between the primary and secondary, said width of air gap is L;
Elementary iron core, armature winding, two elementary iron cores in end and two magnet rings in the middle of elementary comprising, the cross section of the elementary iron core in centre of annular is " recessed " font, the opening surface of " recessed " font is to secondary; Armature winding is the Circular Winding of coiling along the circumferential direction; And be embedded in the opening of said " recessed " font, a magnet ring all is set on the both sides end face of middle elementary iron core, the outside end face of each magnet ring is provided with an elementary iron core in end; Elementary iron core in end and magnet ring are annular; The magnetizing direction of two magnet rings is parallel magnetization vertically, and in the opposite direction
Secondary secondary iron core and the secondary axle of comprising; Secondary iron core is fixed on the secondary axle; The cross section of the secondary iron core of annular is " recessed " font; The opening surface of " recessed " font is to elementary; And should " recessed " font opening portion be D1 across width vertically; The elementary iron core in elementary centre, elementary iron core in end and magnet ring width sum vertically are D3, each bossing width D 2 vertically of secondary iron core " recessed " font, and satisfy condition
Advantage of the present invention:, and combine linear compressor background, the present invention to propose a kind of permanent magnet to be placed the cylinder type flux suitching type vibration motor on elementary to the problem that proposes in the background technology.The permanent magnet of this motor be placed in elementary on, not only do not have permanent magnet but also do not have winding on secondary, secondary structure is simple, firm reliable, is suitable for high-frequency oscillating movement.
Description of drawings
Fig. 1 is the structural representation of cylinder type flux suitching type vibration motor according to the invention, at this moment the armature winding no power;
Fig. 2 is that the magnetic flux of cylinder type flux suitching type vibration motor according to the invention when armature winding passes to direct current moves towards sketch map.
Fig. 3 is that the magnetic flux of cylinder type flux suitching type vibration motor according to the invention when armature winding oppositely passes to direct current moves towards sketch map.
Fig. 4 is that cylinder type flux suitching type vibration motor according to the invention oppositely passes to direct current at armature winding, and secondary magnetic flux when being stabilized in the relevant position moves towards sketch map.
Fig. 5 is the A-A cutaway view of Fig. 1;
Fig. 6 is the B-B cutaway view of Fig. 1;
Fig. 7 is the C-C cutaway view of Fig. 1.
Embodiment
Embodiment one: this execution mode is described below in conjunction with Fig. 1 to Fig. 7; The said cylinder type flux suitching type of this execution mode vibration motor, it comprises primary and secondary, elementaryly is arranged on secondary outside; Air gap is radially arranged between the primary and secondary, and said width of air gap is L;
Elementary elementary unshakable in one's determination 1, armature winding 3, two elementary 2 and two magnet rings 4 unshakable in one's determination in end in the middle of comprising, elementary unshakable in one's determination 1 cross section, the centre of annular is " recessed " font, the opening surface of " recessed " font is to secondary; Armature winding 3 is the Circular Winding of coiling along the circumferential direction; And be embedded in the opening of said " recessed " font, on middle elementary unshakable in one's determination 1 the both sides end face magnet ring 4 be set all, the outside end face of each magnet ring 4 is provided with an end elementary unshakable in one's determination 2; End elementary unshakable in one's determination 2 is annular with magnet ring 4; The magnetizing direction of two magnet rings 4 is parallel magnetization vertically, and in the opposite direction
Secondary comprise secondary unshakable in one's determination 5 with secondary axle 6; Secondary unshakable in one's determination 5 are fixed on the secondary axle 6, and secondary unshakable in one's determination 5 cross section of annular is " recessed " font, and the opening surface of " recessed " font is to elementary; And should " recessed " font opening portion be D1 across width vertically; The elementary 2 and magnet rings 4 unshakable in one's determination in elementary 1, end unshakable in one's determination, elementary centre width sum vertically are D3, each bossing width D 2 vertically of secondary 5 " recessed " unshakable in one's determination font, and satisfy condition
Armature winding 3 is the ring-like winding of coiling along the circumferential direction; Be secondary in the frame of broken lines among Fig. 1.
Operation principle:
With secondary position is the operation principle that example is explained this cylinder type flux suitching type vibration motor in position shown in Figure 1.
Secondary this assigned address that is positioned at; When armature winding 3 is cold; The magnetic flux that magnet ring 4 produces forms permanent magnet flux closed-loop path 7; Wherein, the magnetic flux that is produced by magnet ring 4 forms the first permanent magnet flux closed-loop path 7-1 through radially air gap, secondary unshakable in one's determination 5, middle elementary 1 and magnet ring 4 unshakable in one's determination between elementary 2, two primary and secondaries unshakable in one's determination in end; The magnetic flux that is produced by magnet ring 4 is through the air part between radially air gap, secondary unshakable in one's determination 5 bossing, primary and secondary 5 grooves unshakable in one's determination between elementary unshakable in one's determination 2, the primary and secondary in end; Middle elementary unshakable in one's determination 1 bossing and magnet ring 4 form the second permanent magnet flux closed-loop path 7-2, and be as shown in Figure 1.
When armature winding 3 passes to a certain direction galvanic the time; As shown in Figure 2; The magnetic flux that armature winding 3 produces forms armature flux closed-loop path 8; Wherein, the magnetic flux that is produced by armature winding 3 forms the first armature flux closed-loop path 8-1 through radially air gap and secondary unshakable in one's determination 5 between middle elementary 1, magnet ring unshakable in one's determination 4, elementary 2, two primary and secondary unshakable in one's determination in end; The magnetic flux that is produced by armature winding 3 forms the second armature flux closed-loop path 8-2 through radially air gap and middle elementary unshakable in one's determination 1 opposite side bossing between the air part between middle elementary unshakable in one's determination 1 a side bossing, primary and secondary 5 grooves unshakable in one's determination, secondary unshakable in one's determination 5, the primary and secondary.The first armature flux closed-loop path 8-1 is identical in the direction of elementary 2 the insides unshakable in one's determination, an end with permanent magnet flux closed-loop path 7, and the two forms overlaying relation; In the opposite direction in a side bossing of centre elementary unshakable in one's determination 1 of the second armature flux closed-loop path 8-2 and the second permanent magnet flux closed-loop path 7-2, the magnetic flux that armature winding 3 produces has been offset the magnetic flux that a part of magnet ring 4 produces in a middle side bossing of unshakable in one's determination 1.Magnet ring 4 with armature winding 3 coefficient results is: magnetic flux is strengthened in an elementary and secondary relative end elementary unshakable in one's determination 2; Magnetic flux is weakened at elementary unshakable in one's determination 1 the bossing in centre that is positioned at a side of this end elementary unshakable in one's determination 2 accordingly, thereby makes secondary this position that is stabilized in.
When armature winding 3 pass to earlier figures 2 in the opposite direction galvanic the time, as shown in Figure 3, the flux-reversal that armature winding 3 produces.The first armature flux closed-loop path 8-1 and permanent magnet flux closed-loop path 7 are in the opposite direction elementary 2 the insides unshakable in one's determination, an end; The magnetic flux that armature winding 3 produces in an end elementary unshakable in one's determination 2 has been offset the magnetic flux that a part of magnet ring 4 produces in this part; When the electric current of armature winding was enough big, the magnetic flux that armature winding 3 produces in an end elementary unshakable in one's determination 2 can be offset the magnetic flux of magnet ring 4 in this part generation fully; The second armature flux closed-loop path 8-2 is identical with the direction of the second permanent magnet flux closed-loop path 7-2 in a side bossing of centre elementary unshakable in one's determination 1, and the two forms overlaying relation.Magnet ring 4 with armature winding 3 coefficient results is: magnetic flux receives significantly in an elementary and secondary relative end elementary unshakable in one's determination 2 and weakening, and secondary unshakable in one's determination 5 sucking action is weakened; Magnetic flux is strengthened at elementary unshakable in one's determination 1 the bossing in centre that is positioned at a side of this end elementary unshakable in one's determination 2 accordingly greatly; Secondary unshakable in one's determination 5 sucking action is strengthened; Thereby make the secondary lateral movement that the magnetic field suction effect strengthens in middle unshakable in one's determination 1, as shown in Figure 4.
Through changing the frequency and the amplitude of armature winding 3 supply currents, just can control secondary movement velocity and thrust.
Secondary structure of the present invention is simple, firm reliable, can adapt to high-frequency oscillating movement.
Embodiment two: this execution mode is described further execution mode one, and middle elementary unshakable in one's determination 1, end elementary unshakable in one's determination 2 and secondary unshakable in one's determination 5 constitutes by the silicon steel sheet stack, or constitutes by single solid steel.
Embodiment three: this execution mode is described further execution mode one, and middle elementary unshakable in one's determination 1, end elementary unshakable in one's determination 2 and secondary unshakable in one's determination 5 is made up of ferromagnetic composite material of amorphous state or SMC soft-magnetic composite material.
Claims (5)
1. cylinder type flux suitching type vibration motor is characterized in that, it comprises primary and secondary, elementaryly is arranged on secondary outside, and air gap is radially arranged between the primary and secondary, and said width of air gap is L;
Elementary iron core (1), armature winding (3), two elementary iron cores in end (2) and two magnet rings (4) in the middle of elementary comprising; The cross section of the elementary iron core in the centre of annular (1) is " recessed " font, and the opening surface of " recessed " font is to secondary, and armature winding (3) is embedded in the opening of said " recessed " font; On the both sides end face of middle elementary iron core (1) magnet ring (4) is set all; The outside end face of each magnet ring (4) is provided with an elementary iron core in end (2), and elementary iron core in end (2) and magnet ring (4) are annular, and the magnetizing direction of two magnet rings (4) is parallel magnetization vertically; And it is in the opposite direction
Secondary secondary iron core (5) and the secondary axle (6) of comprising, secondary iron core (5) is fixed on the secondary axle (6), and the cross section of the secondary iron core (5) of annular is " recessed " font, and the opening surface of " recessed " font is to elementary.
2. according to the said cylinder type flux suitching type of claim 1 vibration motor, it is characterized in that armature winding (3) is the Circular Winding of coiling along the circumferential direction.
3. according to the said cylinder type flux suitching type of claim 1 vibration motor; It is characterized in that; " recessed " font opening portion of the secondary iron core (5) of annular is D1 across width vertically; The elementary iron core in elementary centre (1), an elementary iron core in end (2) and a magnet ring (4) width sum vertically are D3; Each bossing width D 2 vertically of secondary iron core (5) " recessed " font, and satisfy condition
4. according to the said cylinder type flux suitching type of claim 1 vibration motor, it is characterized in that middle elementary iron core (1), the elementary iron core in end (2) and secondary iron core (5) constitute by the silicon steel sheet stack, or constitute by single solid steel.
5. according to the said cylinder type flux suitching type of claim 1 vibration motor, it is characterized in that middle elementary iron core (1), the elementary iron core in end (2) and secondary iron core (5) are made up of ferromagnetic composite material of amorphous state or SMC soft-magnetic composite material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210323171.9A CN102843013B (en) | 2012-09-04 | 2012-09-04 | Cylindrical magnetic flux switching type oscillation motor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210323171.9A CN102843013B (en) | 2012-09-04 | 2012-09-04 | Cylindrical magnetic flux switching type oscillation motor |
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| Publication Number | Publication Date |
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| CN102843013A true CN102843013A (en) | 2012-12-26 |
| CN102843013B CN102843013B (en) | 2014-12-10 |
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| CN201210323171.9A Expired - Fee Related CN102843013B (en) | 2012-09-04 | 2012-09-04 | Cylindrical magnetic flux switching type oscillation motor |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103199669A (en) * | 2013-02-25 | 2013-07-10 | 哈尔滨工业大学 | Multi-phase long-stroke cylinder-shaped magnetic-flux-switching-type linear motor |
| CN104811008A (en) * | 2015-05-26 | 2015-07-29 | 哈尔滨工业大学 | Cylindrical permanent magnet flux-switching linear oscillation motor |
| CN109149895A (en) * | 2018-10-08 | 2019-01-04 | 哈尔滨工业大学 | A kind of novel vibration motor |
| CN110880850A (en) * | 2019-11-11 | 2020-03-13 | 华中科技大学 | Stator permanent magnet type moving iron core type spring-free linear oscillation motor |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1486528A (en) * | 2001-11-22 | 2004-03-31 | ���µ�����ҵ��ʽ���� | Vibrating linear actuator |
| CN1509514A (en) * | 2001-03-27 | 2004-06-30 | 松下电工株式会社 | Linear oscillator and electrical driven toothbrush |
| CN101577449A (en) * | 2009-03-18 | 2009-11-11 | 东南大学 | Magnetic flux switching type transverse magnetic flux permanent magnetism wind mill generator |
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2012
- 2012-09-04 CN CN201210323171.9A patent/CN102843013B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1509514A (en) * | 2001-03-27 | 2004-06-30 | 松下电工株式会社 | Linear oscillator and electrical driven toothbrush |
| CN1486528A (en) * | 2001-11-22 | 2004-03-31 | ���µ�����ҵ��ʽ���� | Vibrating linear actuator |
| CN101577449A (en) * | 2009-03-18 | 2009-11-11 | 东南大学 | Magnetic flux switching type transverse magnetic flux permanent magnetism wind mill generator |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103199669A (en) * | 2013-02-25 | 2013-07-10 | 哈尔滨工业大学 | Multi-phase long-stroke cylinder-shaped magnetic-flux-switching-type linear motor |
| CN103199669B (en) * | 2013-02-25 | 2016-04-13 | 哈尔滨工业大学 | Heterogeneous Long Distances cylinder type flux suitching type linear electric motors |
| CN104811008A (en) * | 2015-05-26 | 2015-07-29 | 哈尔滨工业大学 | Cylindrical permanent magnet flux-switching linear oscillation motor |
| CN109149895A (en) * | 2018-10-08 | 2019-01-04 | 哈尔滨工业大学 | A kind of novel vibration motor |
| CN110880850A (en) * | 2019-11-11 | 2020-03-13 | 华中科技大学 | Stator permanent magnet type moving iron core type spring-free linear oscillation motor |
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| CN102843013B (en) | 2014-12-10 |
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Granted publication date: 20141210 |