CN1913302A - Magnetic resistance type linear oscillating motor and its power supply method - Google Patents
Magnetic resistance type linear oscillating motor and its power supply method Download PDFInfo
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- CN1913302A CN1913302A CN 200610077903 CN200610077903A CN1913302A CN 1913302 A CN1913302 A CN 1913302A CN 200610077903 CN200610077903 CN 200610077903 CN 200610077903 A CN200610077903 A CN 200610077903A CN 1913302 A CN1913302 A CN 1913302A
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Abstract
This invention discloses a reluctance line oscillation motor with the character of a plunger compressor, which overlaps two excitation coils with independent outer core magnetic yokes on a hollow stator axially and sets a magnet isolation component at the middle of two independent outer core yokes then to connect them together by nuts at both ends of the hollow stator, then sets a cylinder rotor core made of magnet or ferromagnetic material with metal piston rings at both ends in the hollow stator. When working, the pulsation DC of positive and negative two half periods of a single phase AC are led into two excitation coils in the motor to excite magnet in turn relying on two diodes, so that the magnetic field in the motor shifts and the cylinder rotor core forms linear movement to and fro following the come-and-go shift of the field according to the reluctance torque.
Description
Technical field:
The present invention relates to a kind of magnetic resistance type linear oscillating motor, relate in particular to the cylinder type mover core of this motor and the iron circuit of magnet exciting coil with rolling piston compressor feature.The invention still further relates to the method for supplying power to of magnetic resistance type linear oscillating motor.
Background technology:
Have a kind of " " compressor of built-in straight line power " (application number 002440725; publication number 2445112) that rolling piston compressor and modern tubular DC linear motor are integrated on structure and performance " its armature winding to place the tubular stator core periphery of the axial combined mechanism of a plurality of unipolar motors, the manufacturing of high-quality magnetically soft alloy material is selected in this tubular stator core for use.And portion is provided with a permanent magnet cylinder type mover core that has non magnetic self-lubricating material piston ring within it, has constituted the motion of motor.This motor adopts CPU numerical control DC power supply and ambipolar type of drive to carry out work.
Because this technology has adopted the closed core magnetic circuit and the ambipolar type of drive of barrier-type to armature winding, the flux concentrating that makes armature winding on the one hand and produced constrains in the middle of the iron circuit, causes the internal magnetic field of motor to die down.Be because ambipolar type of drive can produce alternating flux on iron circuit on the other hand, cause that the motor feels hot and cause the permanent magnet demagnetization.
According to another, in the middle of " magnetic resistance type linear oscillating motor and integrated application device thereof and method of supplying power to " (application number 2005100883424) that the inventor formerly submits to, provide a kind of outer open-flux structure unshakable in one's determination of not having, though exerting oneself of motor can increase, the also corresponding increase of exciting power loss.And in the middle of " two-phase switched reluctance linear oscillating motor and freewheeling circuit thereof " (application number 2005100725929),, provide a kind of with outer magnetic structure unshakable in one's determination in order to reduce the loss of exciting power.And the clear and definite unipolarity type of drive that adopts is identical with the polarity of the electrical current of two magnet exciting coils, though can avoid on cylinder type mover core the demagnetization phenomenon that produces alternating flux and cause permanent magnet because of oppositely magnetizing, but do not solve the problem that on the common core between two magnet exciting coils, produces alternating flux, so this section common core must adopt silicon steel sheet to carry out folding system.Moreover, do not provide the support ring device on the cylinder type mover core, obviously be wrong.
Summary of the invention:
Technical problem to be solved by this invention is: provide a kind of and can avoid producing alternating flux and can strengthen motor internal magnetic field and the magnetic resistance type linear oscillating motor that reduces excitation loss.
In order to solve the problems of the technologies described above, first kind of technical scheme that the present invention adopts is: two magnet exciting coils that have an independent outer yoke unshakable in one's determination axially are superimposed upon hollow stator periphery with the non-ferrous alloy made, and between two independently outer yokes unshakable in one's determination setting every magnet assembly.Then, the non magnetic nut by the hollow stator two ends is connected in one them.The magnetic line of force of the interior flux that an inner magnet line of force direction and magnet exciting coil are produced is consistent and have the support sealing ring formed with antifriction material or the permanent magnet cylinder type mover core of metallic piston ring two again, place hollow stator inside, constitute the motion of whole motor.
Utilize two semiconductor diodes, the pulsating direct current of positive and negative two half cycles of single-phase alternating current is imported two magnet exciting coils that electrical current polarity is identical in the middle of the motor respectively, take turns excitation, the internal magnetic field that motor is produced forms displacement back and forth at the motor two ends.The opposite generation with not the lining up position deviation of existence of the internal magnetic field polarity that the permanent magnet cylinder type mover core then relies on self-field and energising magnet exciting coil to produce attracts each other.Consequently, the permanent magnet mover core is drawn into an end of energising magnet exciting coil.Two magnetic fields overlap fully, and the magnetic conductance that makes energising magnet exciting coil inside becomes maximum and magnetic resistance reaches minimum, then, along with the outage of energising magnet exciting coil and the conducting of the magnet exciting coil of not switching on, the permanent magnet cylinder type mover core is pulled into an end of energising magnet exciting coil again from an end of outage magnet exciting coil.Owing to be subjected to the influence of alternating current pole-changing characteristic, so circulation is just continuously carried out, and has formed the linear reciprocation operation of magnetic resistance type linear oscillating motor.
Second kind of technical scheme that the present invention adopts: remain two magnet exciting coils that have an independent outer yoke unshakable in one's determination axially be superimposed upon hollow stator periphery with the non-ferrous alloy made, and between two independently outer yokes unshakable in one's determination setting every magnet assembly.Then, non magnetic nut by the hollow stator two ends is connected and fixed them and becomes one, different is, it be one have the support sealing ring formed with antifriction material or metallic piston ring and portion's filling within it at two ends the hollow cylinder mover core of non magnetic encapsulant place hollow stator inside, constituted the motion of whole motor.
Equally, utilize two semiconductor diodes, the pulsating direct current of positive and negative two half cycles of single-phase alternating current is imported two magnet exciting coils that electrical current polarity is identical in the middle of the motor respectively, take turns excitation.The internal magnetic field that motor is produced forms displacement back and forth at the motor two ends.The internal magnetic field that the hollow cylinder mover core then relies on the energising magnet exciting coil to produce attracts each other with opposite the generation with not the lining up position deviation of existence of polarity in the magnetic field of the hollow mover core that is magnetized.Consequently, the hollow cylinder mover core is drawn into an end of energising magnet exciting coil, two magnetic fields overlap fully, and the magnetic conductance that makes energising magnet exciting coil inside becomes maximum and magnetic resistance reaches minimum, be pulled into an end of energising magnet exciting coil then again from an end of outage magnet exciting coil along with the conducting hollow body cylinder type mover core of the outage of energising magnet exciting coil and the magnet exciting coil of not switching on, owing to be subjected to the influence of alternating current pole-changing characteristic, so circulation is just continuously carried out, and has formed the linear reciprocation operation of magnetic resistance type linear oscillating motor.
In sum, the present invention has following beneficial effect with respect to prior art.
(1) the present invention cut-offs inside in motor with the yoke outer unshakable in one's determination of magnet exciting coil, reduces than the open-flux structure air gap that does not have outer yoke unshakable in one's determination, when having reduced the exciting power loss, the magnetic field of motor internal is enhanced.
(2) the present invention is the separate setting of yoke outer unshakable in one's determination of two magnet exciting coils, and adopts one pole type excitation mode, thereby avoided producing on iron circuit alternating flux and heating phenomenon.
(3) because axially the electrical current polarity of two magnet exciting coils of stack is identical, the magnetic line of force direction of the inner main flux that produces is constant.Thereby can not form magnetic reversal to its inner cylindrical mover core, so the cylinder type mover core in the middle of this structure can be made of ferromagnetic material, also can make of permanent magnet.Especially after adopting permanent magnet, will the magnetizing current of motor be reduced greatly.
(4) the present invention adopts two diodes to finish double half-wave rectification to single-phase alternating current, and when supplying with two magnet exciting coils in the middle of the motor respectively and carrying out work, can deserve to be called the most simple and effective a kind of method of supplying power in the middle of all method of supplying power to of magnetic resistance type linear oscillating motor.
(5) magnetic resistance type linear oscillating motor of the present invention possesses the cylinder barrel of rolling piston compressor and all technical characteristic of piston.As long as set up the function that the inlet and outlet device just can be realized compressor at two ends.
Description of drawings:
The present invention is described in further detail below in conjunction with accompanying drawing and concrete execution mode.
Fig. 1 is the basic structure cut-away view of magnetic resistance type linear oscillating motor of the present invention.Cylinder type mover core wherein can be a ferromagnet, also can be permanent magnet.
Fig. 2 a kind ofly makes of ferromagnetic material, and portion's filling within it the cut-away view of cylinder type mover core of non magnetic light sealing material, it can exchange with permanent magnet cylinder type mover core shown in Figure 3 and use.
Fig. 3 is a kind of cut-away view of the cylinder type mover core of making of permanent magnet, and it can exchange with cylinder type mover core shown in Figure 2 and use.
Fig. 4 is a kind of operating circuit that magnetic resistance type linear oscillating motor uses.
Embodiment:
According to shown in Figure 1, magnetic resistance type linear oscillating motor of the present invention, it is the periphery that the magnet exciting coil (L1 and L2) of yoke unshakable in one's determination (8,9,10 and 11,12,13) axially was superimposed upon the hollow stator made from Cu alloy material (4) outside two were had, and outside two independences, be provided with between the yoke unshakable in one's determination (8,9,10 and 11,12,13) every magnetic device (7), the brass nut (5 and 6) by hollow stator (4) two ends links into an integrated entity their (4,5,6,7,8,9,10,11,12,13 and L1 and L2) then.Again an inner magnet line of force direction consistent with the magnetic line of force direction of the inner main flux of magnet exciting coil (L1 and L2) and have at two ends metallic piston ring (2 and 3) permanent magnet cylinder type mover core (1) or for ferromagnetic material make and have metallic piston ring (2 ' and 3 ') and portion's filling within it equally at two ends the hollow cylinder mover core (1 ') of silicone rubber (14) place hollow stator (4) inside, constituted the motion of whole motor.
According to shown in Figure 4, the method for supplying power to of magnetic resistance type linear oscillating motor of the present invention is with two semiconductor diodes (V1 and V2) pulsating direct current of positive and negative two half cycles of alternating current to be imported two magnet exciting coils (L1 and L2) respectively to carry out work.And these two identical magnet exciting coils of electrical current polarity are exactly two magnet exciting coils (L1 and L2) that axially are superimposed upon in the middle of the motor on the hollow stator (4).
Claims (5)
1, a kind of magnetic resistance type linear oscillating motor axially is superimposed upon the cylinder body periphery of using the non-ferrous alloy material by two magnet exciting coils, and makes it fixing by the non magnetic nut apparatus at two ends.In cylinder body, be provided with one then and have the support sealing ring formed with antifriction material or the cylinder type mover core of metallic piston ring at two ends, constitute the motion of whole motor.During work, adopt one pole type type of drive, two magnet exciting coils supplying with the motor two ends with the different pulse direct current of phase place in turn carry out excitation.Make the magnetic field of motor internal form displacement back and forth, the reluctance torque that cylinder type mover core then relies on " magnetic resistance minimum principle " to produce is followed the displacement back and forth in magnetic field, forms straight reciprocating motion.It is characterized in that: two magnet exciting coils (L1 and L2) all have independently outer separately iron circuit (8,9,10 and 11,12,13).And be provided with every magnet assembly (7) between the iron circuit outside independently at two.
2, according to the described magnetic resistance type linear oscillating motor of claim 1, it is characterized in that: described cylinder type mover core, both can make of ferromagnetic material, also can make of permanent magnet.
3, according to claim 1 and 2 described magnetic resistance type linear oscillating motors, it is characterized in that: when adopting permanent magnet to make cylinder type mover core, must be noted that, cylinder type mover core is an entity, and the magnetic line of force direction of the inside main flux that is produced at magnetic line of force direction and magnet exciting coil that when assembling will be inner with it is consistent, and can not adorn instead.
4, according to claim 1 and 2 described magnetic resistance type linear oscillating motors, it is characterized in that: when adopting ferromagnetic material to make cylinder type mover core, it can be made hollow cylinder earlier after, give filling with non magnetic light sealing material again.
5, the method for supplying power to of magnetic resistance type linear oscillating motor: it is a unilateal conduction characteristic of utilizing semiconductor diode, and two magnet exciting coils (L1 and L2) that the pulsating direct current of positive and negative two half cycles in the middle of the single-phase alternating current is put in order out respectively and supplied with respectively in the middle of the motor carry out work.It is characterized in that: in the middle of these power supply circuits, have only 2 semiconductor diodes (V1 and V2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610077903 CN1913302A (en) | 2005-05-15 | 2006-04-24 | Magnetic resistance type linear oscillating motor and its power supply method |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200510072592 | 2005-05-15 | ||
| CN200510072592.9 | 2005-05-15 | ||
| CN 200610077903 CN1913302A (en) | 2005-05-15 | 2006-04-24 | Magnetic resistance type linear oscillating motor and its power supply method |
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| Publication Number | Publication Date |
|---|---|
| CN1913302A true CN1913302A (en) | 2007-02-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200610077903 Pending CN1913302A (en) | 2005-05-15 | 2006-04-24 | Magnetic resistance type linear oscillating motor and its power supply method |
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| CN (1) | CN1913302A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108880185A (en) * | 2017-07-28 | 2018-11-23 | 柴民 | A kind of linear actuating device and linear electric machine |
| CN110784090A (en) * | 2019-11-12 | 2020-02-11 | 上海微电机研究所(中国电子科技集团公司第二十一研究所) | Single-phase cylindrical linear motor |
-
2006
- 2006-04-24 CN CN 200610077903 patent/CN1913302A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108880185A (en) * | 2017-07-28 | 2018-11-23 | 柴民 | A kind of linear actuating device and linear electric machine |
| CN110784090A (en) * | 2019-11-12 | 2020-02-11 | 上海微电机研究所(中国电子科技集团公司第二十一研究所) | Single-phase cylindrical linear motor |
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Open date: 20070214 |