Linear asynchronous motor |
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IPC classes for russian patent Linear asynchronous motor (RU 2518915):
 Linear motor / 2517437
Invention is related to electric engineering and can be used in linear actuators, for example, in railway transportation. A linear electric motor consists of the primary part generating an electromagnetic field and the secondary part converting one type of energy to another. The primary part - an inducer - is made as a fixed block consisting of two plates of a non-magnet and dielectric material with ferromagnetic cores fixed in through grooves and a winding laid between them into the grooves. The secondary part - an armature - is represented by metal strips fixed in parallel to each other with an air gap before polar tips of the primary part (inducer) coil groups to the projected length of the first part movement.
 Linear asynchronous motor / 2510867
Invention refers to electric engineering and can be used in electric drives with non-linear or reciprocal motion of actuators. Linear asynchronous motor (LAM) contains inducer 1 consisting of core 2 and three-phase winding 3, and secondary element 4 connecting core 5 with grooves containing central straight portions and side portions adjoining them at both sides at equal angles. Electroconductive rods have the shape of the above grooves and are closed at both sides by electroconductive elements 6. Electroconductive rods place in side parts of grooves consist of two sections interconnected by closing contacts 14 of reed relays, which outputs 7 of windings are connected to direct-current source through reed relays 8. Inducer 1 contains permanent magnets 9 interconnected with the inducer mechanically and located at its both sides.
 Linear asynchronous electric drive / 2494522
Linear asynchronous electric drive comprises an inductor 1, comprising a core, on teeth 2 of which there are winding coils 3, and an electroconductive anchor 4. In each upper part of teeth there are two screening turns 5, outputs of which are connected to contacts of sealed-contact relays 6, coils of which are connected with a switching device. The switching device provides for the possibility of simultaneous closure of at least four screening turns, placed on four adjacent teeth of the inductor, which form the initial row. In first two teeth the turns that screen their right parts are closed, and in the third and fourth teeth the turns are closed, which screen their left parts. To start a pitch of the electroconductive anchor, the switching device opens a turn that screens the left part of the fourth tooth, and to complete the pitch - it opens a turn that screens the right part of the first tooth, closes turns that screen the right parts of the second and third teeth, and a turn screening the left part of the fifth tooth. To fix the electroconductive anchor, after the pitch the switching device opens turns that screen the third and the fourth teeth, and disconnects winding coils arranged on these teeth from the source of voltage.
 Cylindrical linear induction motor / 2488936
Proposed motor comprises inductor with three-phase winding composed of coil modules 1 alternating axially with ferromagnetic washers 2 and ferromagnetic yoke 3. Armature comprises ferromagnetic core 4 supporting alternating ferromagnetic and electrically conducting rings 5, 6, respectively. Armature has bore to accommodate cylinder 7 furnished with handle 8 and consisting of two types of alternating rings. First type of rings consists of combined conducting and insulating parts 10, 11, respectively. Second type represents ferromagnetic rings 12.
 Linear asynchronous electric drive / 2472275
Linear asynchronous electric drive (LAED) 1 comprises an inductor (2) made of two conductors with a winding consisting of separate coils arranged at conductor teeth and an electroconductive anchor. There are two screening turns arranged on inductor teeth, outputs of which are connected to a reed relay, coils of which are connected to a switching device that provides for the possibility of simultaneous closing of at least eight screening turns arranged on four neighbouring teeth of both conductors and forming an initial row. Near the first two teeth on each conductor there are turns closed, which screen their right parts in direction from the left to the right. On the third and fourth teeth there are turns closed, which screen their left parts. To start the pitch of the electroconductive anchor, the switching device opens two turns that screen left parts of fourth teeth in both conductors. And to complete the pitch - it opens turns that screen the right parts of the first teeth in both conductors and closes turns that screen the right parts of the second and third teeth of both conductors, and turns that screen the left parts of the fourth and fifth teeth. On each tooth additionally there are short-circuit turns arranged at sides of conductor teeth adjacent to each other, which partially screen them and perpendicular to turns screening right and left parts of their every tooth.
 Secondary element of linear asynchronous motor / 2468492
Secondary element of linear asynchronous motor includes electroconductive 1 and magnetoconductive parts. Electroconductive part 1 includes rods 2 closed with buses 3 on both sides. Rods 2, which are perpendicular to buses 3, are equipped with additional rods 4, which electrically attach rods 2 to sections of buses 3 forming an external arc in curved section. Additional rods 4 are located in relation to sections of buses at an angle differing from the right angle.
 Linear asynchronous electric drive / 2461114
Linear asynchronous electric drive 1 contains an inductor consisting of a core including a heelpiece 2 and teeth 3. The heelpiece 2 is designed in the shape of a rectangular lattice at the points whereof the teeth 3 are positioned. The electrically conductive secondary element 4 is positioned on ball rests 5. The inductor winding 6 is designed to be single-phase. Each teeth has three loops positioned in its butt-end part, all the loops outlets connected to circuit closer devices such as reed relays. The first pair of loops 7 are positioned parallel to each other while the other pair of loops 8 is perpendicular to the first one. The pairs of loops 7 and 8 are intended for shielding the tooth edge parts. The coils 9 of the reed relays are connected to the commutation device 10 controlling the magnetocontrollable contacts 11 of the reeds. The single-phase winding 6 coils are connected to a single-phase voltage source via the master switch 12. Fixation of the electrically conductive secondary element 4 may be performed by four longitudinal or four cross-wise rows of shielded teeth 3 with the loops shielding the last tooth in the row opened to provide for the secondary element pitch.
 Electro-mechanical converter for impact machines / 2454777
Electro-mechanical converter includes asynchronous linear cylindrical engine (ALCE) of alternating current in the stator housing 1 of which there located are stator coils 2. The housing 1 is connected to the housing 11 of linear cylindrical engine (LCE) of direct current. The armatures of the said engines are united with the possibility of adjusting the acceleration of the formed common armature and its reciprocating movement within the limits coaxially the stator 2 coils in slider bearings 5 of ALCE, slider bearings 10, 71 of LCE. Common armature is equipped with stabilisation means preventing its turning about axis. LCE is performed in a form of accelerator and serves for providing a necessary speed to the common armature in the end of working stroke.
 Submersible plunger pump unit and its linear electric motor / 2422676
Device is intended for oil lifting from wells and can be used for pumping-out of formation water and mining operations of underground mineral resources laid at big depths in liquid state. Device includes housing (1), electric motor (2), stock (7), plunger (8), cylinder (10), inlet and outlet valves (12, 13), drain electromagnetic valve (18), which are connected to tubing string (14). In bilateral unit cooled with pumped liquid with linear electric motor (2) cooled with dielectric liquid there installed is the second plunger (9), the second cylinder (11) and the second pair of valves (15,16). Linear electric motor (2) includes housing (3), double-ridge stator (4), the secondary element (7). Secondary element (7) is made from electrically conducting long multi-layer plates (21) with transverse slots (22) offset relative to each other and filled with dielectric material.
 Linear asynchronous motor / 2416864
In linear asynchronous motor with open magnetic conductor containing the inductor consisting of core and multi-phase winding, and secondary element including the core in slots of which there arranged one under the other are at least two electrically conducting pins of secondary winding, thus forming vertical row, which are closed on one side with common electrically conducting bus; according to invention, each electrically conducting pin is connected to its electronic switching-control instrument connected to common electrically conducting bus closing electrically conducting pins on the other side and connected to multi-channel programmable control with feedback as to movement speed of secondary element.
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FIELD: electricity. SUBSTANCE: linear asynchronous motor contains an inductor 1 consisting of the core 2 and polyphase winding, coil 3 which form rows in longitudinal and transversal directions. The secondary element 4 contains an electroconductive part 5 placed at the ferromagnetic base 6. The electroconductive part 5 contains a middle part 7, to which side members 8 join at both sides and each side part is formed by alternating electroconductive rods 9 perpendicular to the one-piece part 7 and electroconductive rods 10 are placed one after one parallel to the one-piece part 7. EFFECT: increasing transverse stabilisation efforts for the inductor in regard to the secondary element. 3 dwg
The invention relates to the field of electrical engineering, and more specifically to a linear motor converts electrical energy directly into translational movement. Known linear induction motor containing an inductor consisting of a core and a polyphase winding, the coils which are placed on the teeth of the core, and the coil winding form rows in the longitudinal and transverse directions, and longitudinal rows of coils have direct orders repetition phase, and the coils of transverse rows have until the middle of each row straight, and after the mid - opposite the order of the phases, and secondary element comprising a conductive part located on ferromagnetic base (see and. C. the USSR IPC NC 41/04, No. 696579, 1979). This linear induction motor (LAD) develops enough effort transverse stabilization. The closest in technical essence to the claimed technical solution is FRET containing the inductor consisting of a core and a polyphase winding, the coils which are placed on the teeth of the core, and the coil winding form rows in the longitudinal and transverse directions, and longitudinal rows of coils have direct orders repetition phase, and the coils of transverse rows to mid-range straight, and after the middle of a series about Voprosy the order of the phases, and secondary element comprising a conductive part located on a ferromagnetic base, and a conductive part contains a continuous part located in the middle, to which both sides are adjacent the side panels (see U.S. Pat. RF IPC 41/025, No. 2211524, 2001). This linear induction motor is chosen as the prototype. A small effort transverse stabilization - the disadvantage of the prototype. The technical task of the present invention is the removal of the marked disadvantage in the developed design MODE. The solution of the technical problem is achieved by the linear induction motor containing an inductor consisting of a core and a polyphase winding, the coils which are placed on the teeth of the core, and the coil winding form rows in the longitudinal and transverse directions, and longitudinal rows of coils have direct orders repetition phase, and the coils of transverse rows have until the middle of each row straight, and after the mid - opposite the order of the phases, and the secondary element includes a conductive portion that is placed on a ferromagnetic base, and a conductive part contains a continuous part located in the middle, to which both sides adjacent side parts, according to the invention, the side parts are made in the form of alternating ele is tropology rods, perpendicular solid portion and electrically connected to and between each pair of vertical rods placed one after the other conductive rods parallel to the solid part of the secondary element, which is electrically connected with the perpendicular rods. Perform lateral parts in the form of alternating electrically conductive rods, perpendicular solid portion and electrically connected to her, placing between each pair of vertical rods one after the other conductive rods parallel to the solid part and electrically connected to the perpendicular rods, these criteria determine the novelty and significant differences of this technical solution. The invention is further appears by the example of embodiment with reference to the accompanying drawings, on which: figure 1 depicts a General view of the linear induction motor (front view schematically); figure 2 shows a General view of the conductive part of the secondary element LAD (top view schematically); figure 3 is a wiring diagram of the inductor's winding WAY. Linear induction motor includes a coil 1, consisting of a core 2 and a multiphase winding, coil 3 which form rows in the longitudinal and transverse directions (figure 1 not shown). Secondary ale is NT 4 contains conductive part 5, located on ferromagnetic base 6. Conductive part 5 contains a continuous part 7 located in the middle, to which both sides are adjacent the side parts 8. Conductive portion 5 a secondary element 4 shown in figure 2, the solid part 7 is adjoined on both sides of the side parts 8, each of which is formed by alternating conductive rods 9, perpendicular solid portion 7, between which one by one are conductive rods 10, parallel to the solid part. The electrical connection of the rods 9 and 10 and a continuous part 7 are shown by dots. The scheme of connection of the coils of the winding of the inductor is presented in figure 3. Capital letters a, b and C marked phases which are connected to the respective coils of polyphase winding. It is seen that the longitudinal rows of coil form direct orders repetition phase, and the coils of each transverse row are to mid-range straight, and after the mid - opposite the order of the phases. Consider the operation of this linear induction motor. When connecting the coils of the inductor's winding to a source of three-phase voltages by currents that generate the magnetic fluxes. Magnetic fluxes generated longitudinal rows of coil windings will be running along the axis of TWIST. They, crossing the median part e is antropologia part of the secondary element, Inuktitut electromotive force causing the flow of eddy currents. Eddy currents of the middle part of the secondary element when interacting with a magnetic threads running in the longitudinal direction, create traction mechanical force, under the action of which the inductor LAD will move in the opposite direction of the traveling magnetic field. Magnetic fluxes generated by currents transverse rows of coil windings will be "run" towards each other from the edges of the inductor to its centre. Transversely of the running magnetic threads, interacting with the currents in the median part of the conductive part of the secondary element, they inducirovani will create a counter force in the transverse direction of the mechanical force. These efforts by symmetric arrangement of the inductor TWIST relative to the secondary element are mutually balanced and do not affect the operation of the engine. When the transverse displacement of the inductor TWIST relative to the secondary element of the equality of these efforts is broken. For example, if the offset of the inductor WAY to the right in each transverse row of transverse forces acting from left to right will remain the same value as in symmetric arrangement of the inductor LAD and a secondary element, as these efforts are created by the interaction of a transversely running in the same direction of the control magnetic flux, created by the currents in the three coils of the inductor, with the currents they inducirovani in the middle part of the secondary element. At the same time the transverse forces acting on the coil in the transverse direction from right to left, will increase as the portion of the inductor will be on the side part 8 (figure 1 and figure 2) a conductive part of the secondary element. It is seen that the side parts 8 (figure 2) represent a squirrel-cage winding formed by electrically conductive rods 9 and 10 (figure 2). So part of the magnetic flux running across right to left, will interact with the currents in the squirrel cage windings and the force acting from right to left, will increase (the currents in the rods 10 are directed perpendicular to the magnetic flux and have a long active interaction with the magnetic flux). In the result, under the action of the difference of the forces acting from right to left and from left to right, the inductor will be displaced to the left until, until you occupy a symmetrical position with respect to the secondary element. This achieves a transverse stabilizing inductor WAY. Compared with the prototype increased effort transverse stabilization of the inductor TWIST relative to the secondary element, as the sides of the conductive part of the secondary element is designed as a short-circuited winding. Linear induction on the", containing an inductor consisting of a core and a polyphase winding, the coils which are placed on the teeth of the core, and the coil winding form rows in the longitudinal and transverse directions, and longitudinal rows of coils have direct orders repetition phase, and the coils of transverse rows have until the middle of each row straight, and after the mid - opposite the order of the phases, and secondary element comprising a conductive part located on a ferromagnetic base, and a conductive part contains a continuous part located in the middle, to which both sides are adjacent the side parts, characterized in that the side parts are made in the form of alternating electrically conductive rods, perpendicular solid portion and electrically connected to and between each pair of vertical rods placed one after the other conductive rods parallel to the solid part of the secondary element, which is electrically connected with the perpendicular rods.
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