KR101831654B1 - Portable generator - Google Patents

Abstract

Provided is a portable generator. According to an embodiment of the present invention, the portable generator includes: an external turbine rotated by working fluids; and a generator body converting rotational force of the external turbine into electric energy. The external turbine and the generator body include a magnet for the external turbine and a magnet for the generator body, respectively, which have a magnetizing direction vertical to the generator′s rotational axis. The external turbine and generator body are connected through a magnetic combination of the two magnets. The generator body includes: a permanent magnet module of a dual Halbach array; a first coil module located on a side of the permanent magnet module; and a second coil module located on the other side of the permanent magnet module. The permanent magnet module includes: a ring-shaped steel; a first ring-shaped magnet array made by placing a Halbach array of a plurality of permanent magnets on a side of the steel; and a second ring-shaped magnet array made by placing a Halbach array of a plurality of permanent magnets on the other side of the steel.

Description

PORTABLE GENERATOR

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a portable generator, and more particularly, to a portable generator having a turbine easily detachable and attachable using magnetic coupling.

Generally, generators generate electricity by using wind, water flow, and the like. In addition, a turbine suitable for the environment can be selected and used, and the turbine is connected to the body portion of the generator using a fastening means such as a bolt.

However, when the turbine is connected using a fastening means or the like, much time is required for coupling or replacement of the turbine. Accordingly, even if a turbine suitable for the environment is selected, it takes much time to replace the turbine in the generator, which may reduce the efficiency of the generator.

Korean Registered Patent No. 1052828 (registered on July 25, 2011)

SUMMARY OF THE INVENTION The present invention provides a portable generator that is easy to mount and detach a turbine using magnetic coupling.

Also, the present invention provides a portable generator that maximizes electromagnetic induction by arranging permanent magnets in a dual halbach array structure.

The problems to be solved by the present invention are not limited to the above-mentioned problems, and other matters not mentioned can be clearly understood by those skilled in the art from the following description.

According to an aspect of the present invention, there is provided a portable generator including: an external turbine rotated by a working fluid; And a generator body for converting the rotational force of the external turbine into electric energy, wherein the external turbine and the generator body each have a magnet for an external turbine and a magnet for a generator body whose magnetization direction is perpendicular to the generator rotation axis, The external turbine and the generator body are connected by magnetic coupling of a magnet for a magnet and a magnet for a generator body, the generator body comprises: a permanent magnet module of a dual halbach array; A first coil module positioned at one side of the permanent magnet module; And a second coil module positioned on the other side of the permanent magnet module, wherein the permanent magnet module comprises: a ring-shaped steel; and a first ring-shaped first permanent magnet disposed on one side of the steel, And a ring-shaped second magnet array in which a plurality of permanent magnets are arranged in a hoop arrangement on the other side of the steel.

In addition, the outer turbine may have a magnet for the outer turbine disposed outside the housing of the outer turbine so as to be contact-magnetically coupled with the magnet for the generator body.

The outer turbine may include a magnet for the outer turbine disposed inside the housing of the outer turbine so as to be non-contact-coupled to the magnet for the generator body.

The outer turbine and the generator body may each include a connector for an outer turbine extending from one side of the housing of the outer turbine, and a connector for a generator body extending from the generator body to engage with the connector for the outer turbine.

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The first magnet array is arranged such that the magnetization directions of the permanent magnets are repeatedly arranged in the order of ↑, ←, ↓, and →, with respect to the steel, and the second magnet array is arranged so that, The magnetization directions of the permanent magnets can be repeatedly arranged in order of ↓, ←, ↑, →.

The first and second coil modules may include a first coil wound clockwise on the bobbin and a second coil wound on the bobbin in a counterclockwise direction.

In the first and second coil modules, the first coil and the second coil may correspond to each other with respect to the permanent magnet module.

Other specific details of the invention are included in the detailed description and drawings.

According to the present invention, it is possible to easily detach and attach the turbine from the generator using magnetic coupling.

In addition, the permanent magnets can be arranged in a dual halbach array structure to maximize the electromagnetic induction phenomenon.

In environments such as gas pipes and faucets where no fluid leakage should occur, magnets are placed inside the turbine (housing), and magnets are placed outside the turbine (housing) in environments such as windy places or where water flows By deploying, the generator can be used in a variety of environments by easily replacing it with a turbine suitable for the environment.

1 is a view illustrating a concept of a portable generator according to an embodiment of the present invention.
Fig. 2 is a view showing a state of engagement of the portable generator shown in Fig. 1. Fig.
3 is a diagram showing the concept of magnetic coupling of the portable generator of FIG.
4 is a diagram illustrating a concept of a portable generator according to another embodiment of the present invention.
Fig. 5 is a view showing a combined state of the portable generator shown in Fig. 4. Fig.
Fig. 6 is a diagram showing the concept of magnetic coupling of the portable generator of Fig. 4;
7 is a view showing the positional relationship of the magnets and the coils of the generator body of the portable generator.
8 is a view showing the shape of the permanent magnet module of the generator body of the portable generator.
9 is a view showing an example of a turbine to which a portable generator according to an embodiment of the present invention is applied.
10 is a view showing an example of a turbine to which a portable generator according to another embodiment of the present invention is applied.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention and the manner of achieving them will become apparent with reference to the embodiments described in detail below with reference to the accompanying drawings. The present invention may, however, be embodied in many different forms and should not be construed as being limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. Is provided to fully convey the scope of the invention to those skilled in the art, and the invention is only defined by the scope of the claims. Like reference numerals refer to like elements throughout the specification.

Although the first, second, etc. are used to describe various elements, components and / or sections, it is needless to say that these elements, components and / or sections are not limited by these terms. These terms are only used to distinguish one element, element or section from another element, element or section. Therefore, it goes without saying that the first element, the first element or the first section mentioned below may be the second element, the second element or the second section within the technical spirit of the present invention.

The terminology used herein is for the purpose of illustrating embodiments and is not intended to be limiting of the present invention. In the present specification, the singular form includes plural forms unless otherwise specified in the specification. As used herein, the terms "comprises" and / or "made of" means that a component, step, operation, and / or element may be embodied in one or more other components, steps, operations, and / And does not exclude the presence or addition thereof.

Unless defined otherwise, all terms (including technical and scientific terms) used herein may be used in a sense commonly understood by one of ordinary skill in the art to which this invention belongs. Also, commonly used predefined terms are not ideally or excessively interpreted unless explicitly defined otherwise.

Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings.

1 is a view illustrating a concept of a portable generator according to an embodiment of the present invention. Fig. 2 is a view showing the engaged state of the portable generator shown in Fig. 1. Fig. 3 is a diagram showing the concept of magnetic coupling of the portable generator of FIG.

1 to 3, a portable generator 100 according to an embodiment of the present invention includes an external turbine 110 rotated by a working fluid and a generator 110 for converting the rotational force of the external turbine 110 into electric energy. Includes a body (120). At this time, the working fluid may include all liquids and gases capable of rotating the blades of the external turbine 110, such as wind, water, and gas.

Here, the outer turbine 110 and the generator body 120 each have a magnet 115 for an external turbine and a magnet 125 for a generator body, the magnetization direction of which is perpendicular to the generator rotation axis 122, The external turbine 110 and the generator body 120 can be connected by magnetic coupling of the magnet 115 and the magnet 125 for the generator body.

For example, the magnets 115 for the outer turbine and the magnets 125 for the generator body may be in the form of a circular column or a ring, the magnetization direction of which is formed in the radial direction of the circle, and the outer turbine 110 and the generator body 120 As shown in Fig. Thus, when the outer turbine 110 and the generator body 120 are brought close to each other, the magnets 115 for the outer turbine and the magnets for the generator body (115) 125 are self-coupled, and the outer turbine 110 and the generator body 120 are connected. Further, when an external force greater than the magnetic force generated by the magnets 115 for the external turbine and the magnets 125 for the generator body is applied to the portable generator 100, the external turbine 110 and the generator body 120 are separated. As described above, by using a magnet for replacement and / or engagement of the outer turbine 110 in the generator body 120, detachment and attachment are easy using magnetic coupling.

In particular, the outer turbine 110 may be disposed outside the housing of the outer turbine 110 so that the magnets 115 for the outer turbine may be in contact with the magnets 125 for the generator body. Thus, the magnets 115 for the external turbine and the magnets 125 for the generator body can directly contact each other to constitute a physical shaft. Thereafter, as the blades of the external turbine 110 rotate, the rotary shaft 122 of the generator body 120 and the like rotate together to generate electric energy in the generator body 120.

4 is a diagram illustrating a concept of a portable generator according to another embodiment of the present invention. 5 is a view showing a state of engagement of the portable generator shown in Fig. 4. Fig. 6 is a diagram showing the concept of magnetic coupling of the portable generator of FIG.

4 to 6, a portable generator 200 according to another embodiment of the present invention includes an external turbine 210 rotated by a working fluid and a generator 220 for converting the rotational force of the external turbine 210 into electric energy. And includes a body 220.

The external turbine 210 and the generator body 220 each have a magnet 215 for an external turbine and a magnet 225 for a generator body whose magnetization direction is perpendicular to the generator rotation axis 122, The external turbine 210 and the generator body 220 can be connected by magnetic coupling of the magnet 215 and the magnet 225 for the generator body.

As described above, the magnets 215 for the external turbine and the magnets 225 for the generator body may be cylindrical or ring-shaped, the magnetization direction of which is formed in the radial direction of the circle, and the external turbine 210 and the generator body 220, respectively. When the outer turbine 210 and the generator body 220 are brought close to each other, the magnets 215 for the outer turbine and the magnets 225 for the generator body 225 are magnetically coupled, and the outer turbine 210 and the generator body 220 are connected. The external turbine 210 and the generator body 220 are separated by applying an external force larger than the magnetic force formed by the magnets 215 for the external turbine and the magnets 225 for the generator body to the portable generator 200. [ As described above, by using a magnet for replacement and / or engagement of the outer turbine 210 in the generator body 220, detachment and attachment are easy using magnetic coupling.

Particularly, the outer turbine 210 is disposed inside the housing of the outer turbine 110 so that the magnets 215 for the outer turbine can be non-contactly magnetically coupled with the magnets 225 for the generator body. Accordingly, the magnets 215 for the external turbine and the magnets 225 for the generator body are not directly in contact with each other but are spaced apart from each other, and are synchronized with rotation of the external turbine 210 through non- A permanent magnet disposed in the generator body 220 can be moved by the magnetic torque and the permanent magnet can be moved by the permanent magnet and the coil, The electric energy can be generated in the second electrode 220.

The outer turbine 210 is disposed in the housing of the outer turbine 110 so that the outer turbine 210 and the generator body 210 are fixed to each other when the magnets 215 for the outer turbine are disposed inside the housing of the outer turbine 110, The turbine 220 includes an external turbine connector 217 extending from one side of the housing of the outer turbine 210 and a connector 227 for the generator body extending from the generator body 220 to engage with the connector 217 for the external turbine Respectively. The outer turbine connector 217 and the generator body connector 227 may be formed with corresponding male and female threads. 4, a male screw thread is formed outside the external turbine connector 217, and a female screw thread is formed in the generator body connector 227, so that the external turbine connector 217 The generator body connector 227 can be engaged.

The coupling force between the external magnet for the turbine 215 and the magnet for the generator body 225 can be adjusted by combining the external turbine connector 217 and the generator body connector 227 . That is, the external turbine connector 217 and the generator body connector 227 adjust the spacing of the magnets 215 for the external turbine and the magnets 225 for the generator body in a screw mechanism manner to provide a coupling force . For example, as the distance between the magnets 215 for the outer turbine and the magnets 225 for the generator body is increased, the coupling force is lowered, but the maximum rpm is reduced, It is also possible to rotate.

After the external turbine 210 is connected to the generator body 220 using the magnetic coupling between the magnet 215 for the external turbine and the magnet 225 for the generator body, the external turbine 210 is operated by the operating fluid The rotary shaft 222 of the generator body 220 is rotated by the magnetic force to be magnetically coupled in the axial direction. The starting torque of the portable generator 200 can be adjusted by controlling the magnetic force by the screw mechanism of the external turbine connector 217 and the generator body connector 227.

7 is a view showing the positional relationship of the magnets and the coils of the generator body of the portable generator. 8 is a view showing the shape of the permanent magnet module of the generator body of the portable generator.

Referring to FIGS. 7 and 8, the arrangement structure of magnets and coils of the generator bodies 120 and 220 of the portable generators 100 and 200 is shown. The generator bodies 120 and 220 of the portable generators 100 and 200 may include a permanent magnet module 330 of a dual halftone array, a first coil module 330 disposed on one side of the permanent magnet module 330, And a second coil module 350 positioned on the other side of the permanent magnet module 330. [

Generally, in a halbach array, only one of the upper and lower surfaces of the magnet has a high magnetic density and the other surface is extremely low. In the present invention, the permanent magnet module 330 of a dual halbach array, Two coil modules 340 and 350 are disposed to maximize the electromagnetic induction phenomenon.

More specifically, the permanent magnet module 330 includes a ring-shaped steel 332, a ring-shaped first magnet array 334 having a plurality of permanent magnets arranged in a hoop arrangement on one side of the steel 332, And a second magnet array 336 in the form of a ring in which a plurality of permanent magnets are arranged in a hoop arrangement on the other side of the steel 332. Since the permanent magnet module 330 is formed in a ring shape, rotational motion is possible.

The first magnet array 334 and the second magnet array 336 are arranged in a heavily array with the permanent magnets arrayed in a hexagonal array and the first magnet array 334 and the second magnet array 336 are arranged in a double- The strongest magnetic field is formed on the surface side of the second magnet array 336 and the surface side of the second magnet array 336. The first coil module 340 is disposed on the first magnet array 334 of the permanent magnet module 330 and the second coil module 350 is disposed on the second magnet array 336, Can be maximized.

At this time, the first magnet array 334 can be repeatedly arranged in the order of ↑, ←, ↓, → in the order of the magnetization directions of the permanent magnets around the steel 332, and the second magnet array 336 can be repeatedly arranged The magnetization directions of the permanent magnets can be repeatedly arranged in the order of ↓, ←, ↑, and →. Here, the arrow mark in the magnetizing direction indicates from S pole to N pole (S? N). The number of the permanent magnets per the first and second magnet arrays 332 and 334 is variable, but may be a multiple of four. Preferably, each of the first and second magnet arrays 332 and 334 may have 20 permanent magnets, and each of the permanent magnets may have five permanent magnets in each of the magnetization directions ↓, ←, ↑, and →.

In addition, a pair of coil modules are disposed on both sides of the permanent magnet module 330. The side of the first magnet array 334 is referred to as a first coil module 340 and the side of the second magnet array 336 is referred to as a second coil module 350 for convenience. The first and second coil modules 340 and 350 include first and second coils 340a and 350a wound in a clockwise direction on a bobbin and second coils 340b and 350b wound in a counterclockwise direction on the bobbin Respectively.

At this time, the first coils 340a and 350a and the second coils 340b and 350b may be positioned corresponding to the permanent magnet module 330. 7, when the first coil 340a and the second coil 340b are positioned in the order of the first magnet array 334 and the second magnet array 336, 350b, and the first coil 350a. That is, coils wound in different directions are disposed at corresponding positions with respect to the permanent magnet module 330, thereby maximizing the electromagnetic induction phenomenon.

In addition, the permanent magnet module 330 may be formed in a ribbon shape extending in the longitudinal direction in addition to the ring shape. Specifically, the permanent magnet module 330 includes a ribbon 332 and a plurality of A first magnet array 334 having a ribbon shape in which permanent magnets are arranged in a hoop arrangement and a second magnet array 336 having a ribbon shape in which a plurality of permanent magnets are arranged in a hoop arrangement on the other side of the steel 332 can do. The ribbon-shaped permanent magnet module 330 is linearly movable along the longitudinal direction of the ribbon shape. By making the permanent magnet module 330 linearly movable, electric energy can be generated even in a narrow space.

In this case, the first magnet array 334 can be repeatedly arranged in the order of ↑, ←, ↓, ↑, ↑ in the order of magnetization of the permanent magnets with respect to the steel 332, and the second magnet array 336, The magnetization direction of each permanent magnet can be repeatedly arranged in the order of ↓, ←, ↑, →, ↓ with the steel 332 as a center. Here, the arrow mark in the magnetizing direction indicates from S pole to N pole (S? N). The number of the permanent magnets per the first and second magnet arrays 332 and 334 is variable, but may be a multiple of five. In the case of a magnet set consisting of five magnets in each magnet array, the first magnet array 334 is arranged in the order of ↑, ←, ↓, →, and ↑ in the magnetization direction of each permanent magnet with respect to the steel 332, The magnetic force line extends from the magnets at both ends and is directed to the magnets in the middle portion since the magnetization directions of the permanent magnets 33 are in the order of ↓, ←, ↑, →, ↓ in the steel 332.

Preferably, the first and second magnet arrays 332 and 334 may each comprise twenty permanent magnets. The first magnet array 332 has eight magnets in the magnetizing direction?, Four magnets in the magnetizing direction?, Four magnets in the magnetizing direction?, And magnets 4 in the magnetizing direction? And the first magnet array 332 is composed of four magnets in the magnetizing direction?, Eight magnets in the magnetizing direction?, Four magnets in the magnetizing direction?, And four magnets magnetized in the magnetizing direction?

Although not shown in the figure, a gear box (not shown) configured to modulate a plurality of gears (not shown) for transmitting the rotational force of the outer turbines 110 and 210 from the generator bodies 120 and 220, And can be connected to the rotary shafts 112 and 212. The electric energy generated in the generator bodies 120 and 220 can be stored by arranging or connecting a rectifying circuit (not shown) and a charging system (not shown) to the generator bodies 120 and 220.

9 is a view showing an example of a turbine to which a portable generator according to an embodiment of the present invention is applied.

Referring to FIG. 9, a magnet 115 for an external turbine is coupled to the outside of the housing 14 of the first turbine 10, like the portable generator 100 according to the embodiment of the present invention described above. Here, the first turbine 10 is a working fluid, such as wind, water (valley, algae), etc., which is used as a working fluid and rotates the blade 12 connected to the housing 14, The leakage of the working fluid is not a problem. That is, since the magnet 115 for the outer turbine protrudes outside the housing 14 of the first turbine 10, it can directly contact and engage with the magnet mounted on the rotary shaft of the generator, and can be easily attached and detached. Therefore, the magnet 115 for the outer turbine shown in Fig. 9 becomes a component of the physical shaft.

10 is a view showing an example of a turbine to which a portable generator according to another embodiment of the present invention is applied.

10, a magnet 215 for an external turbine is coupled to the inside of the housing 24 of the second turbine 20 in the same manner as the portable generator 100 according to another embodiment of the present invention described above. Here, the second turbine 10 is a turbine used in an environment where leakage of a working fluid such as a gas pipe, a faucet, etc. should not occur, and compressed air, gas, or the like becomes a working fluid. At this time, the working fluid enters the inlet (28) of the housing (24) and flows to the outlet (26), so that the working fluid is not leaked. The magnets 215 for the outer turbine are installed inside the housing 24 of the second turbine 20 and are mounted on the rotary shaft of the generator or the like, They can be joined by magnetic force without contacting them, and can be easily attached and detached. Therefore, the magnet 215 for the outer turbine rotates as the blade 22 of the second turbine 20 shown in Fig. 10 rotates, the magnet mounted on the generator rotation shaft and the like rotate synchronously, The magnet and the coil operate to generate energy.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, You will understand. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive.

100, 200: Portable generator
110, 210: External turbine
115, 215: Magnet for external turbine
120, 220: generator body
125, 225: Magnet for generator body
330: permanent magnet module
340: first coil module
350: second coil module

Claims (9)

An outer turbine rotating by a working fluid; And
And a generator body for converting rotational force of the external turbine into electric energy,
Wherein the outer turbine and the generator body each have a magnet for an external turbine and a magnet for a generator body whose magnetization direction is perpendicular to the generator rotation axis,
The external turbine and the generator body are connected by magnetic coupling of the magnet for the external turbine and the magnet for the generator body,
The generator body comprises: a permanent magnet module of a dual halbach array; A first coil module positioned at one side of the permanent magnet module; And a second coil module located on the other side of the permanent magnet module,
The permanent magnet module includes a ring-shaped steel, a ring-shaped first magnet array in which a plurality of permanent magnets are arranged in a hoop arrangement on one side of the steel, and a plurality of permanent magnets arranged in a hoop arrangement on the other side of the steel The second magnet array being in the form of a ring. The method according to claim 1,
The external turbine includes:
Wherein the magnet for the outer turbine is disposed outside the housing of the outer turbine and is magnetically contacted with the magnet for the generator body. The method according to claim 1,
The external turbine includes:
Wherein the magnet for the outer turbine is disposed inside the housing of the outer turbine and is in non-contact magnetism with the magnet for the generator body. The method of claim 3,
The outer turbine and the generator body,
A connector for the outer turbine extending from one side of the housing of the outer turbine, and a connector for the generator body extending from the generator body to engage with the connector for the outer turbine. delete delete The method according to claim 1,
Wherein the first magnet array is repeatedly arranged in the order of ↑, ←, ↓, and → in the order of magnetization of the respective permanent magnets with respect to the steel,
Wherein the magnet array of the second magnet array is repeatedly arranged in the order of ↓, ←, ↑, → in the order of magnetization of the permanent magnets with respect to the steel. The method according to claim 1,
Wherein the first and second coil modules comprise:
A first coil wound clockwise on the bobbin,
And a second coil wound on the bobbin in a counterclockwise direction. 9. The method of claim 8,
Wherein the first and second coil modules comprise:
And the first coil and the second coil are positioned corresponding to each other with respect to the permanent magnet module.

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