阅读说明：本技术 一种纳米发动机 (Nano engine ) 是由 孙若为 孙一绮 于 2019-04-16 设计创作，主要内容包括：本发明公开了一种纳米发动机,包括无线充电装置与直流电动机,无线充电装置包括接通有交流电的发送端线圈以及能够与发送端线圈电磁感应的接收端线圈,接收端线圈位于纳米发动机外壳内部,发送端线圈位于纳米发动机外壳的外部并且与纳米发动机外壳分离。本发明采用改进的微型直流电动机作为纳米发动机的动力部件,外部的无线充电装置在直流电动机内部的接收端线圈加上一定大小的电压,通过换向器将交流电转化为直流电并进入电枢绕组线圈中,在直流电动机内部的磁场作用下,电枢绕组线圈受到电磁力作用而转动,同时带动中心轴一同旋转,中心轴端部的旋转叶片就可以驱动纳米发动机前进。本发明纳米发动机可以持续高效地工作较长的时间。(The invention discloses a nano engine, which comprises a wireless charging device and a direct current motor, wherein the wireless charging device comprises a transmitting end coil and a receiving end coil, the transmitting end coil is communicated with alternating current, the receiving end coil can be electromagnetically induced with the transmitting end coil, the receiving end coil is positioned in a nano engine shell, and the transmitting end coil is positioned outside the nano engine shell and is separated from the nano engine shell. The improved miniature direct current motor is used as a power part of the nano engine, a certain voltage is applied to a receiving end coil in the direct current motor by an external wireless charging device, alternating current is converted into direct current through a commutator and then enters an armature winding coil, the armature winding coil is rotated under the action of electromagnetic force under the action of a magnetic field in the direct current motor, a central shaft is driven to rotate together, and the rotary blade at the end part of the central shaft can drive the nano engine to move forward. The nano engine can work continuously and efficiently for a long time.)

1. A nano engine is characterized by comprising a wireless charging device and a direct current motor, wherein the wireless charging device comprises a transmitting end coil which is communicated with alternating current and a receiving end coil which can be electromagnetically induced with the transmitting end coil, the direct current motor comprises a closed nano engine shell (1), the receiving end coil is positioned inside the nano engine shell (1), the transmitting end coil is positioned outside the nano engine shell (1) and is separated from the nano engine shell (1), two magnetic pole stators of an N pole (6) and an S pole (5) are oppositely arranged on two sides of the inner wall of the nano engine shell (1), an armature winding coil (7) is arranged between the two magnetic pole stators, and two ports of the armature winding coil (7) are connected to the receiving end coil through a commutator (4), the position of a symmetry line of the armature winding coil (7) is fixed with a central shaft (3) which is coaxially arranged with the commutator (4), and the end part of the central shaft (3) extends out of the nano-engine shell (1) and is fixed with a rotating blade (2).

2. Nanoengine according to claim 1, characterized in that the nanoengine housing (1) is a closed nanotube structure.

3. The nano-engine according to claim 2, characterized in that the height of the inner cavity of the nano-engine housing (1) is 500nm to 700nm and the length of the inner cavity of the nano-engine housing (1) is 800nm to 1000 nm.

4. The nanomotor according to claim 1, characterized in that permanent magnetic metal is deposited on both sides of the inner wall of the nanomotor case (1) by a method of vacuum magnetron sputtering metal to form a pair of the pole stators.

5. The nano-engine of claim 4, wherein the permanent magnet metal is samarium cobalt.

6. The nanomotor according to claim 1, characterized in that the armature winding coil (7) is a nano-iron tube with a surface sputter deposited with metallic copper and etched by laser.

7. The nanoengine according to claim 1, characterized in that the central shaft (3) is a titanium dioxide nanotube.

8. The nanoengine according to claim 1, characterized in that the rotating blades (2) are titanium dioxide rotor plates.

9. A nano-engine according to claim 1, characterized in that the commutator (4) comprises two nano-copper sheets with insulating fibers deposited on the surfaces thereof, the two nano-copper sheets being insulated from each other and connected to two ports of the armature winding coil (7), respectively.

10. The nanoengine according to claim 1, characterized in that both ends of the central shaft (3) protrude outside the nanoengine casing (1) and are fixed with the rotating blades (2).

Technical Field

The invention relates to the technical field of nano robots, in particular to a nano engine.

Background

Nanometer-scale robots have become one of the most popular researches at present, and can replace human beings to complete many complex high-precision works. The appearance of the nano robot provides great convenience for the fields of life health, environmental management and the like, and in the development process of the nano robot, power driving becomes a key ring. Due to the special volume structure of the nano robot, in the motion process of the nano robot, not only enough kinetic energy is provided for the nano robot to ensure that the nano robot can continuously operate, but also the power is controlled to ensure the stable motion of the nano robot.

In the motion process of the nano robot, the nano engine is the most critical part of the nano engine and is used for ensuring that the nano robot has enough kinetic energy in the motion process. The driving aspects of domestic and foreign nano engines are mainly researched by chemical energy driving, external field driving, laser energy supply and the like. The length of each part of a micro engine developed abroad at present is not more than 1 micron, the micro engine can reach over ten thousand rotating speeds per minute, the micro engine can continuously work for more than ten hours, the motion of the nano engine is controlled by an electric field, and the micro engine can well enter the human body to work and is used for drug delivery or cell communication. With the development of nanotechnology, the development of nanoengines has been further accelerated. Research personnel build a powerful electronic circuit to control information flow, and a technology of driving and combining a direct current electric field and an alternating current electric field is used for obtaining the nano engine with small volume, high speed and long-lasting operation. The motion environment of the nano engine can be in liquid or solid, the average speed can reach about thirty nanometers per hour, and the nano engine is used for carrying out drug treatment, clearing diseased and necrotic cells and the like.

At present, the nano engine is mostly prepared by adopting a chemical energy driven method. The chemical reaction releases gas, converts chemical energy into mechanical energy, and is prepared by utilizing the principle that kinetic energy is obtained by utilizing the recoil principle. Because most of the raw materials used in the chemical reaction are toxic or the products can cause pollution, and the conditions of the chemical reaction are harsh, such as high temperature, strong acid and strong alkali, ignition and the like, and are difficult to realize in the nano engine. The chemical energy is adopted to drive and prepare the nano engine, the concentration of reactants is reduced along with the reaction, the reaction rate is reduced, and the obtained power is reduced; as the reaction proceeds, other substances may be produced by the chemical reaction, and since the reaction proceeds inside the nano-engine, the product and the reactant cannot be separated, which affects the nano-engine reaction.

Therefore, how to provide a nano engine with sufficient power, stability and high efficiency is a technical problem that needs to be solved by those skilled in the art at present.

Disclosure of Invention

In view of the above, the present invention aims to overcome the defects of the chemical energy driven preparation of the nano-engine in the prior art, and provide a nano-engine with sufficient power, stability and high efficiency.

In order to achieve the purpose, the invention provides the following technical scheme:

a nano engine comprises a wireless charging device and a direct current motor, wherein the wireless charging device comprises a transmitting end coil and a receiving end coil, the transmitting end coil is connected with alternating current, the receiving end coil can be electromagnetically induced with the transmitting end coil, the direct current motor comprises a closed nano engine shell, the receiving end coil is positioned inside the nano engine shell, the transmitting end coil is positioned outside the nano engine shell and is separated from the nano engine shell, two magnetic pole stators including an N pole and an S pole are oppositely arranged on two sides of the inner wall of the nano engine shell, an armature winding coil is arranged between the two magnetic pole stators, two ports of the armature winding coil are connected to the receiving end coil through a commutator, a central shaft coaxially arranged with the commutator is fixed on a symmetrical line of the armature winding coil, the end of the central shaft extends out of the nano engine shell and is fixed with a rotating blade.

Preferably, in the above nano-engine, the nano-engine housing is a closed nano-tube structure.

Preferably, in the nano engine, the height of the inner cavity of the nano engine housing is 500nm to 700nm, and the length of the inner cavity of the nano engine housing is 800nm to 1000 nm.

Preferably, in the nano-engine, permanent magnetic metal is deposited on both sides of the inner wall of the housing of the nano-engine by a vacuum magnetron sputtering method to form a pair of the magnetic pole stators.

Preferably, in the above-described nano-engine, the permanent magnet metal is samarium cobalt.

Preferably, in the nano-engine, the armature winding coil is a nano-iron tube with a surface sputter-deposited with copper metal and etched by laser.

Preferably, in the above nano-engine, the central shaft is a titanium dioxide nanotube.

Preferably, in the above nano-engine, the rotary blade is a titanium dioxide rotor.

Preferably, in the above-described nano-motor, the commutator includes two nano-copper sheets having insulating fibers deposited on surfaces thereof, and the two nano-copper sheets are insulated from each other and connected to two ports of the armature winding coil, respectively.

Preferably, in the above-described nano-engine, both ends of the center shaft protrude outside the nano-engine case and are fixed with the rotary blades.

The improved miniature direct current motor is used as a power part of the nano engine, a certain voltage is applied to a receiving end coil in the direct current motor by an external wireless charging device, alternating current is converted into direct current through a commutator and then enters an armature winding coil, the armature winding coil is rotated under the action of electromagnetic force under the action of a magnetic field in the direct current motor, a central shaft is driven to rotate together, and the rotary blade at the end part of the central shaft can drive the nano engine to move forward.

The invention adopts the wireless charging technology to provide electric energy for the nano engine, and the nano engine can continuously provide stable kinetic energy in the electrified state, thereby being capable of continuously and efficiently working for a long time. The invention can regulate and control the power of the nano engine by changing the magnitude of the wireless charging current, and the control process is simple and convenient. Compared with a chemical energy driven nano engine, the working time of the invention can be multiplied, and the working efficiency and the service life of the nano engine are greatly improved. Moreover, the nano engine can be recycled, and the manufacturing cost and the use cost are lower.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic view of the external structure of a DC motor portion of a nano-motor in an embodiment of the present invention;

fig. 2 is a schematic diagram of the operation of the dc motor portion in an embodiment of the present invention.

In fig. 1 and 2:

1-nanometer engine shell, 2-rotating blade, 3-central shaft, 4-commutator, 5-S pole, 6-N pole and 7-armature winding coil.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 and 2, fig. 1 is a schematic external structural view of a dc motor portion of a nano-engine according to an embodiment of the present invention; fig. 2 is a schematic diagram of the operating principle of a dc motor part in an embodiment of the present invention, in which solid arrows represent current directions and dotted arrows represent magnetic induction lines in fig. 2.

The invention relates to a nano engine, which is a device capable of converting energy in other forms into kinetic energy.

The invention provides a nano engine which comprises a wireless charging device and a direct current motor, wherein the wireless charging device comprises a transmitting end coil communicated with alternating current and a receiving end coil capable of electromagnetically inducing with the transmitting end coil, the direct current motor comprises a closed nano engine shell 1, the receiving end coil is positioned in the nano engine shell 1, the transmitting end coil is positioned outside the nano engine shell 1 and is separated from the nano engine shell 1, two magnetic pole stators of an N pole 6 and an S pole 5 are oppositely arranged on two sides of the inner wall of the nano engine shell 1, an armature winding coil 7 is arranged between the two magnetic pole stators, the armature winding coil 7 is preferably folded into a square structure, two ports of the armature winding coil 7 are connected with the receiving end coil through a commutator 4, a central shaft 3 coaxially arranged with the commutator 4 is fixed on the symmetrical line position of the armature winding coil 7, the end of the central shaft 3 protrudes outside the nano-engine casing 1 and is fixed with the rotary blade 2.

The invention adopts an improved micro direct current motor as a power part of the nano engine, an external wireless charging device applies a certain voltage to a receiving end coil in the direct current motor, alternating current is converted into direct current through a commutator 4 and enters an armature winding coil 7, under the action of a magnetic field in the direct current motor, the armature winding coil 7 is rotated under the action of electromagnetic force, meanwhile, a central shaft 3 is driven to rotate together, and a rotating blade 2 at the end part of the central shaft 3 can drive the nano engine to move forward.

The invention adopts the wireless charging technology to provide electric energy for the nano engine, and the nano engine can continuously provide stable kinetic energy in the electrified state, thereby being capable of continuously and efficiently working for a long time. The invention can regulate and control the power of the nano engine by changing the magnitude of the wireless charging current, and the control process is simple and convenient. Compared with a chemical energy driven nano engine, the working time of the invention can be multiplied, and the working efficiency and the service life of the nano engine are greatly improved. Moreover, the nano engine can be recycled, and the manufacturing cost and the use cost are lower.

The wireless charging working principle adopted by the nano engine is as follows: the transmitting end coil and the receiving end coil are respectively arranged on the transmitting end and the receiving end of the wireless charging device, alternating current with certain frequency is connected to the transmitting end coil, and certain current is generated in the receiving end coil due to electromagnetic induction, so that external electric energy can be transferred from the transmitting end to the receiving end in the direct current motor.

The invention adopts the improved direct current motor as the power source of the nano engine. The working principle of the motor is that the magnetic field exerts force on the current to rotate the motor. When the wireless charging device generates alternating current in the coil of the receiving terminal through electromagnetic induction, a certain voltage is applied to two brush terminals of the direct current motor. When the current passes through the commutator 4, the alternating current is converted into direct current to enter an armature winding coil 7, under the action of a magnetic field, the conductor pipes under the N pole 6 and the S pole 5 are subjected to electromagnetic forces in opposite directions, and when the electromagnetic forces are larger than the electromagnetic torque, the central shaft 3 in the motor rotates clockwise, so that the rotating blades 2 on the left side and the right side of the nano engine are driven, and the nano engine is pushed to advance.

The structure of the direct current motor mainly comprises a stator and a rotor. The working principle is as follows: when the conductor moves in a magnetic field, a potential E is induced in the conductor. And E-BLv, wherein B is the density of the magnetic field, L is the length of the conductor, and v is the relative speed of the conductor moving in the magnetic field. The potential direction is judged according to the right-hand rule. Inside the DC motor, a pair of static magnetic poles are distributed at two ends of the N pole 6 and the S pole 5 to generate a uniform magnetic field which is distributed sinusoidally along the circumference. As the electromagnetic induction wireless charging power supply is alternating current, a current commutator is introduced when the current enters a coil port, as shown in figure 2, and the current in the armature winding coil 7 is always in the same direction. When current enters, the current of the armature winding coil 7 interacts with the magnetic field to generate electromagnetic force F, electromagnetic torque T is formed by the electromagnetic force, the armature winding coil of the motor rotates along the needle direction, and the central shaft 3 drives the rotating blades 2 at the left side and the right side of the nano engine to rotate.

During the operation of the DC motor, the armature winding coil 7 rotates to cut the magnetic induction wire to generate a counter electromotive force E_aAnd therefore the current inputted through the wireless charging overcomes the influence of the back electromotive force. From the voltage balance equation, E_a＝U-I_aR_aThe voltage applied to the two ends of the armature winding coil should satisfy U > E_a。

The preparation method of the nano engine in the scheme is as follows:

i) preparation of the nano-engine housing 1. Porous Anodic Alumina (PAA) is adopted as a main template, a nano-structure basic unit is assembled in the holes of the template, a sol-gel method is used for preparing nanotubes with uniform tube diameters, the template is decomposed in a mixed solution of hydrochloric acid and sulfuric acid with proper concentration, and TiO with stable property and good compatibility is separated₂A nano closed shell. The vertical height of the inner cavity of the nano engine shell 1 is preferably 500 nm-700 nm, the length of the inner cavity is 800 nm-1000 nm, and further preferably, the vertical height of the inner cavity of the nano engine shell 1 is 600nm, and the horizontal length is 900 nm.

II) depositing permanent magnetic metal, preferably samarium cobalt (SmCo) metal, on the upper side and the lower side of the inner wall of the shell 1 of the nano engine by adopting a method of vacuum magnetron sputtering metal, and taking the permanent magnetic metal as a pair of static magnetic poles N pole and S pole in the engine.

III) use of a strong reducing agent KBH in a liquid phase system₄And (3) reducing the metal ions to prepare an iron solid tube with the radius of about r-24 nm, and folding the iron solid tube into a square shape with the length of about 600nm and the width of about 380 nm. The surface of the armature winding coil 7 is sputtered with copper metal and etched by laser. That is, the armature winding coil 7 is preferably a nano-iron tube whose surface is sputter-deposited with metallic copper and which is etched by laser.

IV) preparing a titanium dioxide solid tube with the radius of 32nm and the length of 880nm as a central shaft 3, transversely penetrating the titanium dioxide solid tube through the nano engine, and fixing the titanium dioxide solid tube between the N pole and the S pole. In TiO₂Two ends (outside the nano engine) of the solid tube are respectively provided with a four-blade propeller, and a titanium dioxide rotor plate with the length of 100nm and the width of 50nm is prepared by adopting a titanium dioxide material and is used as a rotating blade 2.

V) the commutator inside the nano engine is prepared by using a nano copper sheet. The copper sheet nanometer material is manufactured by adopting a chemical reduction method, and organic matters such as oleic acid with weak modification capacity are used as a protective agent in order to obtain a nanometer copper sheet with a certain area. And fibers with insulating property are deposited on the surfaces of the copper sheets, so that the two copper sheets are mutually in an insulating state and are respectively connected with two ports of the armature winding coil 7 to form the commutator 4, and the fixed space position is that the armature winding coil rotates along the central axis.

Preferably, in the above nano-engine, the nano-engine housing is a closed nano-tube structure.

It should be noted that in the nano engine provided in the present embodiment, the rotary blade 2 may be disposed at one end or both ends of the central shaft 3, and both ends can achieve the function of driving the nano engine to move, and preferably, in the nano engine, both ends of the central shaft 3 extend out of the nano engine housing 1 and are fixed with the rotary blade 2, so that the nano engine can move more stably and the moving direction can be easily controlled.

The invention has the following beneficial effects:

1) the invention adopts the improved direct current motor to drive the spiral rotor plate to rotate to obtain the power of the nano engine, and the engine can provide enough kinetic energy and ensure that the nano engine can have higher advancing speed when in work.

2) The invention adopts the wireless charging technology to provide current for the nano engine, and the nano engine can continuously provide stable kinetic energy in the electrified state and can continuously work for a long time. The power of the nano engine can be regulated and controlled by changing the current, and the control is simple and convenient.

3) Compared with a chemical energy driven nano engine, the working time of the invention can be multiplied, and the working efficiency of the nano engine is greatly improved. In the range of ensuring the input current and voltage to be proper, the nano engine has longer service life and generally does not have faults; the nano engine can be recycled, and the manufacturing cost and the use cost are reduced.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.