CN218526150U - Magnetic rotating body applying U-shaped permanent magnet - Google Patents

Abstract

The utility model provides a magnetic rotating body applying a U-shaped permanent magnet, which comprises a rotating body and a U-shaped permanent magnet; the rotator is in a ring shape or a disc shape with a rotating shaft, is made of non-magnetic solid materials and comprises a plurality of layers of different materials; at least two U-shaped permanent magnets are arranged at the rotating edge of the rotating body at intervals, two magnetic poles of N, S of the U-shaped permanent magnets face the rotating edge, and magnetic pole lines are arranged along the tangential direction or the rotating shaft direction of the rotating edge; the driving device comprises an electromagnetic device and a logic power supply; the electromagnetic device comprises a magnetic core and a coil arranged around the magnetic core, the coil is arranged adjacent to the rotating edge, the electromagnetic pole faces the rotating edge, and the coil is electrically connected with the logic power supply. The utility model discloses but the magnetic energy of make full use of U type permanent magnet is favorable to miniaturized design.

Description

Magnetic rotating body applying U-shaped permanent magnet

Technical Field

The utility model relates to a rotating machinery field, concretely relates to magnetism of application U type permanent magnet is turned.

Background

The rotator is a rotating mechanical device, and is generally driven to rotate by a motor; one technical feature classification of electric rotors is magnetic rotors, which is a common conversion device of electrical energy and rotational mechanical energy.

The magnetic rotator is a rotating machine provided with permanent magnets, and is characterized in that a plurality of permanent magnets are arranged at the outer edge of the mechanical rotator, and magnetic transmission is realized by utilizing external magnetic field interference; one obvious advantage of magnetic transmission is that the coupling of the main engine and the load is conveniently controlled, for example, the magnetic transmission controlled magnetic rotator is controlled, when the rotating speed reaches the upper limit, the main engine is controlled to be powered off temporarily so that the magnetic transmission disappears, and the mechanical rotator continues to rotate by utilizing the inertia of the mechanical rotator; when the rotating speed of the magnetic rotating body is reduced to the lower limit, the main motor and the magnetic transmission device are restarted, so that the electric energy is saved.

The application provides a mechanical design technical improvement for the magnetic rotator.

SUMMERY OF THE UTILITY MODEL

The technical purpose of the utility model is to provide a magnetic rotating body which uses two magnetic poles of a U-shaped permanent magnet according to the characteristic that the permanent magnet has two magnetic poles at the same time, and the magnetic energy of the two magnetic poles of the permanent magnet is fully utilized; the logic power supply controls the electromagnetic device to generate an electromagnetic pole to drive the magnetic rotator, so that the electric energy utilization rate is high.

In order to achieve the above technical object, the present invention provides a magnetic swivel using a U-shaped permanent magnet, the magnetic swivel including a swivel body and a U-shaped permanent magnet; the rotator is in a ring shape or a disc shape with a rotating shaft and is made of non-magnetic solid materials; at least two U-shaped permanent magnets are arranged at the rotating edge of the rotating body at intervals, two magnetic poles of N, S of the U-shaped permanent magnets face the rotating edge, and magnetic pole lines are arranged along the tangential direction of the rotating edge or along the direction of the rotating shaft.

The permanent magnet of the utility model is made of magnetic steel, neodymium iron boron and other materials known to those skilled in the art, the U shape of the permanent magnet is a pictographic description, and can also be designed into a V shape, a concave shape or other shapes, and the two magnetic poles of the permanent magnet belong to the U-shaped permanent magnet as long as the two magnetic poles face the turning edge of the turning body; the annular rotator is provided with an inner rotating edge and an outer rotating edge, and a U-shaped permanent magnet can be arranged on one rotating edge or two rotating edges according to requirements; the magnetic pole line is a connecting line and an extension line thereof determined by two magnetic poles N, S of the U-shaped permanent magnet; the tangential direction of the rotating edge is the direction of the rotating edge on the rotating circumference, which is perpendicular to the normal.

In the technical scheme, the rotating body is formed by fixedly connecting a plurality of layers of members made of different materials. The multilayer is two-layer or more than two-layer, and the components of multilayer different materials are fixedly connected to bring more designs of the rotating body.

In the above technical solution, the at least two U-shaped permanent magnets are arranged at the edge of the rotator alternately, including an alternate mode of N, S magnetic poles alternating with N, S magnetic poles alternating with each other two by two. The alternate arrangement is preferably that the magnetic poles are evenly spaced, which means that the magnetic poles of the U-shaped permanent magnets are arranged at the same interval at the rotating edge.

The technical scheme comprises a driving device; the driving device comprises an electromagnetic device and a logic power supply; the electromagnetic device comprises a magnetic core and at least one group of coils arranged around the magnetic core, the coils are arranged adjacent to the rotating edge of the rotating body, electromagnetic poles face the rotating edge, and the coils are electrically connected with a logic power supply. The electromagnetic poles of the electromagnetic device comprise N, S two magnetic poles, and the electromagnetic pole faces the rotating edge, wherein one of the electromagnetic poles faces the rotating edge or N, S two electromagnetic poles face the rotating edge.

In the above technical solution, the magnetic core of the electromagnetic device is concave, and the two electromagnetic poles of the concave magnetic core face the rotating edge of the rotating body. The two electromagnetic poles of the concave magnetic core can be used for more fully utilizing electric energy.

In the above technical solution, at least one set of coils of the electromagnetic device is used as a magnetic pole position signal sensor of the U-shaped permanent magnet. The logic power supply needs a magnetic pole position signal of the rotating body as a basis for electrifying the coil of the electromagnetic device in a time sequence, the magnetic pole position signal of the rotating body can be obtained by arranging the magnetoelectric induction device and the photoelectric induction element, and the application of the coil of the electromagnetic device as a signal sensor is a technical preference.

In the technical scheme, the electromagnetic device is arranged in the fixed body; the fixed body and the rotating body are mutually sleeved. The electromagnetic means sets up the mechanical device in inside the utility model discloses call as the stationary body, the stationary body is the well-known technical design scheme of trade with turning each other for the suit, including the stationary body can exchange the design with the role of turning.

The magnetic rotating body of the utility model is different from the conventional magnetic rotating body in that the permanent magnet arranged in the rotating body is limited to be U-shaped, and two magnetic pole surfaces face the outside of the rotating edge, and the magnetic pole line of the permanent magnet can be arranged along the direction of the rotating shaft besides the tangential direction of the rotating edge; in other words, a pair of N, S magnetic poles facing outward from the rotor rim are produced by the same permanent magnet. The components required by the magnetic rotating body in the design can be made of any materials and structures on the premise of effectively realizing mechanical fixation and support.

The conventional technology of the logic power supply comprises a power supply, a switching circuit, a control module and a signal sensor, and can control the on and off of the power supply according to a magnetic pole position signal of the signal sensor, so that the electromagnetic device correspondingly generates an electromagnetic pole for driving the magnetic rotating body to rotate forwards, and the forward rotation is the description of the rotating direction of the rotating body. The mechanical rotating body is widely applied, the motor is commonly used for driving, and how to control the rotating body to operate more electrically is one of the targets of long-term research in the electromechanical industry; the magnetic rotating body can provide mechanical energy linkage for the lower-level load through the rotating shaft or any part of the rotating body.

The utility model has the advantages that: the U-shaped permanent magnet is arranged in the rotating body, so that the magnetic energy of the permanent magnet can be fully utilized, and the miniaturization design of the rotating body is facilitated; the electromagnetic pole driving mode of the electromagnetic device is beneficial to the logic power supply to realize intelligent power-saving control according to the inertia state of the magnetic rotator, and the electric energy conversion efficiency is high.

Drawings

Fig. 1 is a schematic view of a magnetic swivel structure with U-shaped permanent magnets arranged at the swivel edge;

fig. 2 is a schematic view of another magnetic rotator structure with U-shaped permanent magnets arranged at the rotating edge of the rotator;

FIG. 3 is a schematic structural diagram of the U-shaped permanent magnet with the magnetic poles alternately arranged in pairs at the rotating edge;

fig. 4 is a schematic view of a magnetic rotator structure formed by two different materials fixedly connected;

figure 5 is a partial schematic view of the electromagnetic device positioned adjacent to the magnetic rotor;

FIG. 6 is a partial schematic view of a concave core positioned adjacent to a magnetic rotator and referenced to a normal;

FIG. 7 is a schematic diagram of a circuit control structure of the logic power supply and the electromagnetic device;

FIG. 8 is a schematic diagram of a circuit structure of the electromagnetic device doubling as a signal sensor;

FIG. 9 is a diagram of a motion abstraction model corresponding to attraction of magnetic interactions prior to a reference time;

FIG. 10 is a diagram of another motion abstraction model for repulsion of corresponding magnetic interactions after a reference time.

The attached drawings are as follows:

1. a rotating body 1a, a rotating shaft 1b, a rotating edge 2, a U-shaped permanent magnet 3 and a magnetic pole line

4. Electromagnetic device 5, gap 6, stator 7, reference normal 8, normal

9. Tangent line 10, magnetic force line 11, material 1 12, material 2N/S, magnetic pole

Detailed Description

The technical solution of the present invention will be further described in detail with reference to the accompanying drawings and examples.

Magnetism turn, structural feature turns 1 turn edge 1b arrange alternately N, S two magnetic pole faces of at least two U type permanent magnet 2,U type permanent magnet outside at the edge.

Fig. 1 is a structural example of an annular magnetic rotator, wherein 4U-shaped permanent magnets 2,8 are arranged around an inner rotating edge 1b of the rotator 1, magnetic pole faces are arranged outside the inner rotating edge 1b of the rotator at intervals in an alternating manner of magnetic poles N, S, and a magnetic pole line 3 is arranged along a tangential line 9 direction of the inner rotating edge of the rotator; the tangential direction is a directional description of the arrangement of the pole lines 3 and the actual design allows a certain slight angle of deflection. Fig. 2 is a side view configuration example of another magnetic rotor, and the magnetic pole line 3 of the U-shaped permanent magnet 2 disposed around the rotor edge 1b is disposed in the direction of the rotation shaft 1 a.

Fig. 3 is an example of a disk-shaped magnetic rotator, 4U-shaped permanent magnets 2,8 are arranged around the rotating edge 1b of the rotator 1, the magnetic poles of the U-shaped permanent magnets face the outside of the rotating edge 1b of the rotator, the U-shaped permanent magnets 4 are arranged in a manner that N, S magnetic poles alternate in pairs, and the magnetic pole line 3 is arranged along the tangential direction of the rotating edge 1b.

The N, S magnetic poles of the U-shaped permanent magnets are preferably arranged evenly at the rotating edge 1b, and can also be arranged unevenly; the uneven arrangement means that the distance between the two magnetic poles N, S can be different from the distance between the U-shaped permanent magnets; the spacing is the arc spacing of the magnetic poles of the U-shaped permanent magnet at the rotating edge 1b.

Fig. 4 is another example of a disc-shaped magnetic rotator, wherein the rotator 1 is formed by combining a disc-shaped material 11 and a circular ring-shaped material 12, and the disc-shaped material and the circular ring-shaped material can be fixedly connected through a fastener, and the disc-shaped magnetic rotator comprises an integrated design and manufacturing; 4U-shaped permanent magnets 2 are arranged around the circular ring- shaped material 12, 8 magnetic poles of the U-shaped permanent magnets face the outer rotating edge 1b and are arranged in a mode of N, S in a pairwise alternating mode, and the magnetic pole lines 3 of the U-shaped permanent magnets are arranged along the tangential direction of the rotating edge 1b. The advantage of combining two materials to design the rotor is that not only the rotating shaft processing characteristics of the disc-shaped material 11 can be utilized, but also the mass (large specific gravity) of the circular ring-shaped material 12 can be utilized to ensure that the magnetic rotor has considerable inertia when rotating.

The driving device comprises an electromagnetic device 4 and a logic power supply, and a time sequence electromagnetic pole is provided for the magnetic rotator through the electromagnetic device. Fig. 5 is a schematic view of the arrangement of the electromagnetic device 4 adjacent to the magnetic rotor with a gap 5 between them. The gap is also called air gap, which defines that the two devices are not in mechanical contact, and also implies the technical requirement, the smaller the gap is, the more beneficial the magnetic action transmission is, the value is related to the magnetic permeability of the magnetic core, the number of turns of the coil and the electric intensity, the small device is generally arranged to be 1-2mm, and the large and medium device is generally arranged to be 2-20mm.

The magnetic core of the electromagnetic device is a magnetic medium material which can generate stronger additional magnetic field under the action of external magnetic field and is known to those skilled in the art, and is preferably a high-permeability product; the coil usually uses copper wire or copper-plated aluminum core wire, and the more the number of turns, the stronger the electromagnetic action. The design scheme of the magnetic core is various, such as a strip type, a ring type, a concave type and the like, and the design target can be realized as long as the electromagnetic pole of the magnetic core faces the rotating contour of the blade edge and can be controlled by a logic power supply; because N, S electromagnetic poles generated in the magnetic core coexist, a concave magnetic core is preferably adopted; the concave magnetic core is described by figures, but not limited to a strict concave type, for example, a V shape, a U shape, a crescent shape, etc. can be selected, and the design point is to make two electromagnetic poles of the magnetic core face the rotating edge 1b of the magnetic rotator, so as to achieve the design purpose of fully utilizing electromagnetic energy.

Fig. 6 is a schematic diagram of the electromagnetic device of the concave magnetic core and the magnetic rotator arranged adjacently, and the electromagnetic poles at the two ends of the concave magnetic core and the connection line of the rotating shaft 1a of the rotator form a reference normal 7, which can provide the basis of the position signal of the U-shaped permanent magnet for the energization and generation of the electromagnetic device controlled by the logic power supply.

The electromagnetic energy of the electromagnetic device is derived from the current provided by the logic power supply to the coil of the electromagnetic device. The coils of the electromagnetic device are arranged in at least one group, including one group, and the coils are used as electromagnetic force coils for generating electromagnetic poles and can also be used as signal sensors for electromagnetic induction; since the electromagnetic force coil functions to generate an electromagnetic pole and the signal sensor functions to obtain a magnetic pole position signal of the magnetic rotator, practical designs often provide multiple sets, for example, two sets, one set of which functions as the electromagnetic force coil and the other set of which functions as the signal sensor.

The signal sensor has the function of providing signal basis for controlling the operation of the magnetic rotator, is not limited to a coil using an electromagnetic device, and can also be additionally designed with a special magnetoelectric module or a photoelectric signal element; one or more signal sensors can be arranged correspondingly according to the requirements on the signal precision and reliability.

The adjacent setting of the commentaries on classics edge 1b of electromagnetic means 4 and rotation needs mechanical device fixed, embedded electromagnetic means the utility model relates to decide body 6, as long as electromagnetic means's electromagnetism utmost point is to the commentaries on classics edge of rotating, but the design wantonly of the fixed body. For example, corresponding to the disc-shaped magnetic rotator in fig. 6, the fixed body may be designed to be annularly sleeved on the magnetic rotator, a gap is provided between the fixed body and the magnetic rotator, the number of the concave magnetic cores is increased to 4, and 8 electromagnetic poles face the rotating edge 1b of the disc-shaped magnetic rotator. The electromagnetic device can be embedded in the groove by mechanical fixing in the stator, and an auxiliary fixing device can be added.

The electromagnetic pole of the electromagnetic device is expressed, and the fact that a logic power supply provides direct current for a coil of the electromagnetic device is implied; the logic power supply can correspondingly set n pulse current cycles corresponding to the rotation cycle of the magnetic rotating body, wherein n is the number of magnetic poles of the U-shaped permanent magnet 2 arranged on the rotating body at the rotating edge 1 b; for example, the rotator illustrated in fig. 5 is provided with 4U-shaped permanent magnets, the rotating edge 1b has 8 magnetic poles, and the logic power supply can be correspondingly provided with 8 pulse current cycles corresponding to each rotation cycle of the magnetic rotator; the power supply can be set once or twice in each pulse current period.

The control module of logic power supply stores logic on/off control program, which is realized by logic digital technique and relative operation circuit, and its sub-module generally includes: the switch circuit, the logic interface circuit, the microprocessor and the signal input processing circuit which are internally stored with logic control programs and the peripheral circuit can carry out corresponding digital-to-analog conversion through the input sensing signal and control and output time sequence current according to the set logic. Some control module products in the market comprise a low-power switch circuit, and the working logic requirements can be generally met through programming as long as the control precision and the memory space of a microprocessor are met. When the control module in integrated design can not meet the requirement of high power, a special switching circuit can be designed to meet the requirement of power. A circuit structure and control relationship of the logic power supply are shown in fig. 7; when the electromagnetic device also serves as a signal sensor, a circuit structure and a control relationship thereof are shown in fig. 8.

The U-shaped permanent magnet forms a regular pulsating magnetic field along with the rotation of the rotating body, provides forward-rotating position information, and can convert the position information into an electric signal through a signal sensor; the advantage of adopting magnetoelectric induction signal sensor not only can obtain magnetic pole position signal, but also can judge the polarity of magnetic pole through the current direction, even signal precision is relatively low, logic power supply can be according to the magnetic pole before the signal maximum value of arriving benchmark normal 7 judges the reference moment (magnetoelectric induction is a signal of strong and weak normal distribution function with time). The reference moment corresponds to the state that the motion normal line 8 of the magnetic pole is superposed with the reference normal line 7, and at the moment, the electromagnetic force has no tangential component force on the permanent magnet and is not beneficial to the forward rotation of the rotating body.

To make the magnetic rotor obtain the forward turning increment, the electromagnetic pole generated by the electromagnetic device 4 must be opposite to the magnetic polarity of the opposite U-shaped permanent magnet 2 before the reference time (the corresponding motion abstract model is shown in fig. 9), or the same as the magnetic polarity of the opposite U-shaped permanent magnet 2 after the reference time (the corresponding motion abstract model is shown in fig. 10); otherwise, the electromagnetic force of the electromagnetic device can not make the magnetic rotator obtain the forward rotation increment.

In the specific design, attention needs to be paid to the time relation between each rotation period of the magnetic rotator and the real-time rotation period, the rotation period time implies the relation between the rotation speed and the frequency of the periodic pulse current and the pulse electromagnetic pole, and the logic power supply can control the real-time rotation speed of the magnetic rotator through controlling the frequency of the periodic pulse current.

The preferred embodiments described are merely exemplary, and several of the techniques may be used in part or in combination and in accordance with other well-established techniques, the implementation of which will be readily apparent to those skilled in the art.

Examples 1,

A magnetic rotator is designed, which comprises a rotator 1 and 4U-shaped permanent magnets with combined structures.

The rotator with a combined structure is made of two different materials, wherein the material 11 is ABS, the material 12 is nonmagnetic alloy, the structure of the rotator is schematically shown in figure 4, components of the two different materials are embedded, and a mechanical fixing device is additionally arranged; the radius of the combined rotating body is 100Cm, the thickness is 10Cm, 4U-shaped permanent magnets are evenly distributed in a mode that N, S magnetic poles are arranged in a pairwise alternate mode, 8 magnetic poles face the outside of the rotating edge 1b, and a magnetic pole line 3 is along the tangential line 9 direction of the rotating edge.

The electromagnetic device 4 comprises a strip-shaped magnetic core and a coil, wherein the magnetic core is made of an iron-based ultra-microcrystalline alloy material with high magnetic permeability; the electromagnetic device is provided with two groups of coils, wherein one group of the coils is an electromagnetic coil and is formed by winding a copper wire (carrying current is more than 20A) around a magnetic core, the number of turns of a winding is more than 100, and the specific number of turns is adjusted according to experiments; the other group is a magnetoelectric induction coil which is formed by winding a copper wire with the diameter less than 0.5mm around a magnetic core, the number of turns of the winding is more than 50, and the specific number of turns is also adjusted according to the signal processing precision experiment of a control module in the logic power supply.

The logic power supply for controlling the operation of the magnetic rotating body comprises a power supply, a control module, a switching circuit and a signal sensor; a group of lead-acid storage batteries are used as a power supply and are respectively connected with the control module and the switch circuit; the signal sensor is a magnetoelectric induction coil of an electromagnetic device and is connected with a control module of a logic power supply; the electromagnetic coil of the electromagnetic device is connected with the output end of the switching circuit of the logic power supply, and the circuit structure is shown in fig. 8. During installation, the magnetic core of the electromagnetic device is fixed at the adjacent position of the rotating body, one electromagnetic pole faces the rotating edge 1b, the gap 5 is 1.8mm (adjusted according to experiments), and the two groups of coils play the roles of the electromagnetic force coil and the signal sensor respectively.

In this embodiment, a line connecting an electromagnetic pole of a magnetic core of the electromagnetic device 4 and the rotating shaft 1a of the rotating body forms a reference normal 7; the logic power supply sets 8 pulse currents corresponding to one rotation period (preset 0.5 second, 2 revolutions/second) of the magnetic rotator; when the rotating body rotates forwards (a starter is arranged according to actual needs), the control module of the logic power supply obtains the electrifying reference time given by the magnetoelectric induction coil in the electromagnetic device, 9 milliseconds of direct current is conducted on the electromagnetic coil of the electromagnetic device in the 5 th millisecond counted from the reference time, so that the magnetic core faces the rotating edge 1b to generate an electromagnetic pole with the same polarity as the magnetic pole of the opposite U-shaped permanent magnet, and the magnetic rotating body obtains the forward rotation gain through the repulsion action between the magnetic poles to rotate.

The magnetic rotating body of the embodiment can drive a material mixing kettle through the transmission device, and the electricity-saving effect is remarkable. If the rotating speed of the magnetic rotator needs to be changed, the pulse current period of the control logic power supply can be adjusted.

Examples 2,

On the basis of the disc-shaped magnetic rotating body in the embodiment 1, the number of strip-shaped magnetic cores of the electromagnetic device 4 is increased to 4, and each strip-shaped magnetic core is provided with two groups of coils which are connected with a logic power supply; the 4 electromagnetic devices 4 are respectively fixedly connected with four sides of the plane of the disc-shaped magnetic rotator, gaps 5 are arranged, and electromagnetic poles face the rotating edge 1b of the disc-shaped magnetic rotator.

The strip-shaped magnetic core in the embodiment and the previous embodiment can replace a concave magnetic core, so that two electromagnetic poles generated by the magnetic core periodically face two magnetic poles of the U-shaped permanent magnet arranged on the rotating body, and the two-pole electromagnetic energy of the concave magnetic core is fully utilized.

Examples 3,

The control scheme of the embodiment 1 is improved, and the upper limit and the lower limit of the rotating speed of the rotating body are additionally arranged in a control program stored in a control module in the logic power supply. When the rotating speed of the rotating body reaches a set upper limit, the logic power supply suspends the power supply to the electromagnetic device; when the rotating speed of the rotating body is reduced to the set lower limit, the logic power supply restarts to supply power to the electromagnetic device.

The embodiment can save more electric energy after the magnetic rotator tends to set working conditions.

Claims (6)

1. A magnetic rotating body applying a U-shaped permanent magnet is characterized by comprising a rotating body (1), a U-shaped permanent magnet (2) and a driving device; the rotator (1) is in a ring shape or a disc shape with a rotating shaft (1 a) and is made of non-magnetic solid materials; at least two U-shaped permanent magnets (2) are arranged at the position of a rotating edge (1 b) of the rotating body (1) at intervals, two magnetic poles of N, S face the rotating edge (1 b), and a magnetic pole line (3) is arranged along the direction of a tangent line (9) of the rotating edge (1 b) or along the direction of a rotating shaft (1 a); the driving device comprises an electromagnetic device (4) and a logic power supply.

2. The magnetic swivel according to claim 1, characterized in that the swivel (1) is formed by multiple layers of members of different materials being attached.

3. The magnetic swivel according to claim 1, characterized in that the alternate arrangement of the U-shaped permanent magnets (2) comprises an alternate pattern of N, S poles alternating and N, S poles alternating two by two.

4. A magnetic swivel according to claim 1, characterized in that the electromagnetic means (4) comprise a magnetic core and at least one set of coils arranged around the core, arranged adjacent to the swivel edge (1 b) of the swivel (1), with electromagnetic poles facing the swivel edge (1 b), the coils being electrically connected to a logic power supply.

5. Magnetic swivel according to claim 1, characterized in that the magnetic core of the electromagnetic device (4) is concave, the two electromagnetic poles of which face the swivel edge (1 b) of the swivel (1).

6. The magnetic swivel according to claim 1 or 4, characterized in that at least one set of coils of the electromagnetic device (4) is used as a magnetic pole position signal sensor for the U-shaped permanent magnet (2).

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