# US 10,873,251 B2 · Linear motor based on radial magnetic tubes

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- Number: US 10,873,251 B2
- Document ID: US10873251B2
- Status: Granted
- Kind: B2
- Application number: 15/582,762
- Filed: 2017-04-30
- Published: 2017-08-17
- Granted: 2020-12-22
- Earliest claimed: 2014-10-30
- Applicants: Qixing Chen; Qiyu Luo
- Inventors: Qixing Chen; Qiyu Luo
- Web page: https://patentgrep.com/patent/US10873251B2

## CPC

- H02K 41/031: {of the permanent magnet type}
- B60L 13/03: Electric propulsion by linear motors
- B60L 13/04: Magnetic suspension or levitation for vehicles
- B60L 13/10: Combination of electric propulsion and magnetic suspension or levitation
- B64F 1/029: {using a cable or tether}
- F41B 6/003: {using at least one driving coil for accelerating the projectile, e.g. an annular coil}
- F41B 6/006: {Rail launchers}
- H02K 7/003: {Couplings; Details of shafts (means for mounting rotors on shafts H02K1/28)}
- H02K 11/215: Magnetic effect devices, e.g. Hall-effect or magneto-resistive elements
- H02K 11/30: Structural association with control circuits or drive circuits
- H02K 41/0352: {Unipolar motors}
- B60L 2200/26: Rail vehicles
- H02K: DYNAMO-ELECTRIC MACHINES (dynamo-electric relays H01H53/00; conversion of DC or AC input power into surge output power {H03K3/53})
- B60L: PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES (arrangements or mounting of electrical propulsion units or of plural diverse prime-movers for mutual or common propulsion in vehicles B60K1/00, B60K6/20; arrangements or mounting of electrical gearing in vehicles B60K17/12, B60K17/14; preventing wheel slip by reducing power in rail vehicles B61C15/08; dynamo-electric machines H02K; control or regulation of electric motors H02P); SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES (electric coupling devices combined with mechanical couplings of vehicles B60D1/64; electric heating for vehicles B60H1/00); ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL (control or regulation of electric motors H02P); MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B64F: GROUND OR AIRCRAFT-CARRIER-DECK INSTALLATIONS SPECIALLY ADAPTED FOR USE IN CONNECTION WITH AIRCRAFT; DESIGNING, MANUFACTURING, ASSEMBLING, CLEANING, MAINTAINING OR REPAIRING AIRCRAFT, NOT OTHERWISE PROVIDED FOR; HANDLING, TRANSPORTING, TESTING OR INSPECTING AIRCRAFT COMPONENTS, NOT OTHERWISE PROVIDED FOR
- F41B: WEAPONS FOR PROJECTING MISSILES WITHOUT USE OF EXPLOSIVE OR COMBUSTIBLE PROPELLANT CHARGE; WEAPONS NOT OTHERWISE PROVIDED FOR (projectiles for fishing, e.g. fish-spears, A01K81/00; sports implements for throwing A63B65/00, e.g. boomerangs A63B65/08; stationary apparatus for projecting sports balls, e.g. tennis balls, A63B69/40; throwing or slinging toys A63H33/18; knives, axes B26B; projectiles or missiles other than those incorporating springs as projecting means F42B6/00)

## Abstract

A liner motor based on radical magnetic tubes includes: a dynamicer (mover, QDZ) and a stator (STA), the structure of the stator (STA) is: a stator magnetic tube (SCG) is nested into the inner wall of a pure iron tube (DTG), the stator magnetic tube (SCG) provides a radial magnetic field, a stator tube (DZGD) is formed within the stator magnetic tube (SCG), the dynamicer can travel in the stator tube; the dynamicer iron core is a tube of a radial magnetic field and installed on a tubular coil skeleton, on which winding the dynamicer coil to form the dynamicer main body; the sliders (HDZ) are installed on both ends of the dynamicer main body load.

## Claims

### Claim 1

A magnetic tubes motor, comprising: a dynamicer (also known as a mover, QDZ) and a stator (STA), a length of the stator is greater than a length of the dynamicer, a structure of the stator (STA) is: a stator magnetic tube (SCG) nested into an inner wall of a pure iron tube (DTG), the stator magnetic tube (SCG) provides a radial magnetic field, a stator tube (DZGD) is formed within the stator magnetic tube (SCG), the dynamicer travels in the stator tube; the dynamicer is composed of a dynamicer main body (QZT) and sliders (HDZ), the dynamicer main body (QZT) comprises: a coil frame (XGJ), a dynamicer iron core (QTX) and a dynamicer coil (QDX); the dynamicer main body (QZT) structure is: the dynamicer iron core is a tube of a radial magnetic field and installed on a tubular coil skeleton, on which winding the dynamicer coil to form the dynamicer main body; after the sliders (HDZ) are installed on both ends of the dynamicer main body, which become dynamicer; a sensor group is installed on the dynamicer and the stator, to obtain some physical quantities, so as to control a size of drive current and voltage, after dynamicer coil is powered on, the current interacts with a stator magnetic field, forms electromagnetic force, and drives dynamicer movement in the stator tube (DZGD), and the dynamicer drives a load by a transmission mechanism; all magnetic tube provide radial magnetic fields, namely, an inner arc is a pole, an outer arc is another pole;
wherein a slider structure is a kind of a wheel-rail type sliding structure, rails (DG, see FIG. 1.3, FIG. 2) are installed in the stator inner arc and embedded in the stator magnetic tube (SCG) but not bulged out over the surface of the stator magnetic tube; the wheels (GL) is installed on a slider body (HDT) for slider (FIG. 2.1), wheels (GL) rotate on the rails (DG), a driving hook (QDG) is fixed on the sliders (HDZ); the rails (DG) have function of power wires and signal wires.

### Claim 2

A magnetic tubes motor, comprising: a dynamicer (also known as a mover, QDZ) and a stator (STA), a length of the stator is greater than a length of the dynamicer, a structure of the stator (STA) is: a stator magnetic tube (SCG) nested into an inner wall of a pure iron tube (DTG), the stator magnetic tube (SCG) provides a radial magnetic field, a stator tube (DZGD) is formed within the stator magnetic tube (SCG), the dynamicer travels in the stator tube; the dynamicer is composed of a dynamicer main body (QZT) and sliders (HDZ), the dynamicer main body (QZT) comprises: a coil frame (XGJ), a dynamicer iron core (QTX) and a dynamicer coil (QDX); the dynamicer main body (QZT) structure is: the dynamicer iron core is a tube of a radial magnetic field and installed on a tubular coil skeleton, on which winding the dynamicer coil to form the dynamicer main body; after the sliders (HDZ) are installed on both ends of the dynamicer main body, which become dynamicer; a sensor group is installed on the dynamicer and the stator, to obtain some physical quantities, so as to control a size of drive current and voltage, after dynamicer coil is powered on, the current interacts with a stator magnetic field, forms electromagnetic force, and drives dynamicer movement in the stator tube (DZGD), and the dynamicer drives a load by a transmission mechanism; all magnetic tube provide radial magnetic fields, namely, an inner arc is a pole, an outer arc is another pole; wherein
there are two models of power supply to the coil, one is through the rails (DG) power supply, the other is a cable through a driving slot (QDC), connecting a power supplier and the dynamicer coil (QDX).

### Claim 3

A magnetic tubes motor, comprising: a dynamicer (also known as a mover, QDZ) and a stator (STA), a length of the stator is greater than a length of the dynamicer, a structure of the stator (STA) is: a stator magnetic tube (SCG) nested into an inner wall of a pure iron tube (DTG), the stator magnetic tube (SCG) provides a radial magnetic field, a stator tube (DZGD) is formed within the stator magnetic tube (SCG), the dynamicer travels in the stator tube; the dynamicer is composed of a dynamicer main body (QZT) and sliders (HDZ), the dynamicer main body (QZT) comprises: a coil frame (XGJ), a dynamicer iron core (QTX) and a dynamicer coil (QDX); the dynamicer main body (QZT) structure is: the dynamicer iron core is a tube of a radial magnetic field and installed on a tubular coil skeleton, on which winding the dynamicer coil to form the dynamicer main body; after the sliders (HDZ) are installed on both ends of the dynamicer main body, which become dynamicer; a sensor group is installed on the dynamicer and the stator, to obtain some physical quantities, so as to control a size of drive current and voltage, after dynamicer coil is powered on, the current interacts with a stator magnetic field, forms electromagnetic force, and drives dynamicer movement in the stator tube (DZGD), and the dynamicer drives a load by a transmission mechanism; all magnetic tube provide radial magnetic fields, namely, an inner arc is a pole, an outer arc is another pole; the magnetic tubes motor further comprises a feedback braking structure;
wherein for feedback braking, after a load is launched, the dynamicer (QDZ) is braked; specifically, kinetic energy during dynamicer braking is recovered for being electric energy of a power supply; a position sensor is installed at a position where launch is completed, and a motor state is changed into a generator state; after the load is launched, the dynamicer (QDZ) still keeps a huge amount of the kinetic energy; when the dynamicer (QDZ) reaches the position where the position sensor is, a magnetic tube motor is changed from the motor state to the generator state, so as to charging the power source with power generated by the kinetic energy of the dynamicer (QDZ).