TWI768360B - Permanent magnet air coil generator - Google Patents

Abstract

The invention provides a permanent magnet air-core coil generator, which is used for connecting to an external power input machine structure, which can convert kinetic energy into electrical energy; it has one set of hollow coils or two sets of hollow coils arranged symmetrically, and the center of each hollow coil has a hollow part; and a permanent magnet rotor, which has a cylindrical permanent magnet, and Two rotating shafts combined at both ends of the permanent magnet; the permanent magnet is rotatably arranged in the hollow part of a group of hollow coils, or the permanent magnet is rotatably arranged between the two groups of hollow coils, and the two side parts of the permanent magnet extend into The hollow part of each hollow coil and the rotating shaft are used to connect to the power input mechanism. Thereby, the present invention can achieve the purpose of no magnetic attraction resistance when the permanent magnet rotor rotates, and to increase the output of a certain value of voltage and current.

Description

Permanent magnet air coil generator

The present invention relates to a generator, in particular to a permanent magnet air-core coil generator with coils without iron cores.

The structure and principle of a common generator (Generator) today is usually composed of stators, rotors, end covers and bearings; among them, the stator is composed of stator iron core, magnetic induction coil, frame and fixed parts. The rotor is composed of rotor magnetic pole, magnetic yoke, guard ring, center ring, slip ring, fan and rotating shaft. The stator and rotor of the generator are connected and assembled by the bearing and the end cover, so that the rotor can rotate in the stator and perform the motion of cutting the magnetic field line, thereby generating an induced potential, which is drawn out through the terminal and connected to the loop, and a certain value is generated. voltage and current.

However, the center of the magnetic induction coil of the stator of the conventional generator is covered with an iron core. When the rotor rotates between two groups of stators or four groups of stators, the magnetic poles of the rotor will have a magnetic attraction with the iron core in the center of the magnetic induction coil. This reduces the resistance of the rotor when it rotates, resulting in energy loss when external mechanical energy is input to the rotor, reducing the power generation efficiency of the generator. Therefore, how to improve the resistance of the rotor when it rotates and increase the output of the generator to a certain value of voltage and current is the subject to be actively overcome by the present invention.

The main purpose of the present invention is to provide a permanent magnet air-core coil generator. The generator structure design of two sets of air-core coils and a permanent magnet rotor between them enables the center of the air-core coils to form an iron-free structure, thereby achieving permanent magnetism. There is no magnetic resistance when the rotor rotates, and the purpose of increasing the output of voltage and current of a certain value.

In order to achieve the above object, the permanent magnet air-core coil generator of the present invention is used to connect to an external power input mechanism to convert kinetic energy into electrical energy. A hollow frame, and a magnetic induction coil wound around the hollow frame; wherein, the center of the hollow frame has a hollow part; At least one rotating shaft; wherein, the permanent magnet is rotatably arranged in the hollow portion of the hollow coil, and the at least one rotating shaft is used to connect to the power input mechanism, wherein the at least one rotating shaft is respectively combined with one end of the permanent magnet two rotating shafts or a single rotating shaft running through the permanent magnet.

The above-mentioned permanent magnet air-core coil generator further comprises two sets of air-core coils arranged symmetrically, the inner sides of the hollow frames of the two sets of air-core coils are abutted against each other, and the hollow parts of the two sets of air-core coils are connected to each other; and the The permanent magnets of the permanent magnet rotor are rotatably arranged in the hollow portion formed by the butt joints of the two groups of hollow coils, and the at least one rotating shaft extends out of both ends of the hollow frame respectively.

The above-mentioned permanent magnet air-core coil generator further comprises two sets of air-core coils arranged symmetrically, and the inner side of the hollow frame of the two sets of air-core coils is separated into a rotor space; and the permanent magnet is rotatably arranged on the two sets of air-core coils. The rotor space between the two sides of the permanent magnet extends into the hollow portion of each of the hollow coils, and the at least one rotating shaft extends from both ends of the hollow frame respectively.

In the above permanent magnet air-core coil generator, the hollow frame is an O-shaped insulating ring body, and the hollow portion is a strip-shaped through hole penetrating the hollow frame, or a strip-shaped concave hole concave from one side.

In the above permanent magnet air-core coil generator, the hollow frame has two retaining rings formed on the periphery of both ends, and a coil slot located between the two retaining rings; the magnetic induction coil is wound around the coil slot.

In the above permanent magnet air-core coil generator, one end of the at least one rotating shaft corresponding to the permanent magnet is provided with a joint portion, and the joint portion is assembled with the end of the permanent magnet.

The above-mentioned permanent magnet air-core coil generator further includes a positioning element, and the at least one rotating shaft at the two ends of the permanent magnets of the permanent magnet rotor is respectively rotatably penetrated through the positioning element.

In the above permanent magnet air-core coil generator, the positioning element is a U-shaped frame.

The above-mentioned permanent magnet air-core coil generator further includes an installation box, which is a rectangular box composed of a bottom plate, a top plate, two end plates, two side plates and many fixed elements; and at least one of the permanent magnet rotors. A rotating shaft passes through the two end plates.

In the above-mentioned permanent magnet air-core coil generator, the two end plates are respectively provided with a bearing, and the at least one rotating shaft is respectively penetrated through the bearing.

In the above-mentioned permanent magnet air-core coil generator, the hollow frame has a partition and a coil slot, and the partition is located in the middle of the coil slot, so that the coil slot is divided into two sub-sections; or, the hollow frame has a coil slot, and the coil slot has a flat outer surface, so that the magnetic induction coils are placed in the coil slot in close arrangement.

The permanent magnet air-core coil generator of the present invention forms an iron-free structure through the hollow structure of one or two sets of air-core coils, and then the cylindrical permanent magnets of the permanent magnet rotor are arranged in one or two sets of hollow coils. The hollow part of the hollow coil is assembled, thereby avoiding the magnetic attraction resistance between the permanent magnet and the conventional iron core, so that the external power input mechanism can drive the permanent magnet to rotate continuously without resistance, and a better certain value is obtained. Voltage and current output.

10: Hollow coil

11: Hollow frame

111: retaining ring

112: Coil slot

12: Magnetic induction coil

13: hollow part

A1: Rotor space

20: Permanent magnet rotor

21: Permanent magnet

22: Spindle

221: Joint

30: Positioning components

40: Install the box

41: Bottom plate

42: Top Plate

43: End plate

44: Side panels

45: Fixed element

46: Bearings

112b: Dividers

FIG. 1 is a perspective view of a first preferred embodiment of a permanent magnet air-core coil generator according to the present invention.

FIG. 2 is an exploded schematic view of the first preferred embodiment of the permanent magnet air-core coil generator of the present invention.

FIG. 3 is a schematic cross-sectional view from the front of the first preferred embodiment of the permanent magnet air-core coil generator of the present invention.

4 is a schematic cross-sectional side view of the first preferred embodiment of the permanent magnet air-core coil generator of the present invention.

5 is a perspective view of a second preferred embodiment of the permanent magnet air-core coil generator of the present invention.

6 is an exploded schematic view of the second preferred embodiment of the permanent magnet air-core coil generator of the present invention.

FIG. 7 is a schematic cross-sectional view from the front of the second preferred embodiment of the permanent magnet air-core coil generator of the present invention.

8 is a schematic cross-sectional side view of the second preferred embodiment of the permanent magnet air-core coil generator of the present invention.

FIG. 9 is a three-dimensional schematic diagram of a third preferred embodiment of the permanent magnet air-core coil generator of the present invention.

10 is an exploded schematic view of the third preferred embodiment of the permanent magnet air-core coil generator of the present invention.

11 is a schematic diagram of a single-sided structure of the third preferred embodiment of the permanent magnet air-core coil generator of the present invention.

12 is a schematic side sectional view of the third preferred embodiment of the permanent magnet air-core coil generator of the present invention.

13 is a perspective view of a preferred embodiment of the positioning element of the permanent magnet air-core coil generator of the present invention.

FIG. 14 is a schematic diagram of the combination of the preferred embodiment of the installation box of the permanent magnet air-core coil generator of the present invention.

15 is an exploded schematic view of a preferred embodiment of the installation box of the permanent magnet air-core coil generator of the present invention.

FIG. 16 is a perspective view of the fourth preferred embodiment of the permanent magnet air-core coil generator of the present invention.

17 is an exploded schematic view of the fourth preferred embodiment of the permanent magnet air-core coil generator of the present invention.

FIG. 18 is a schematic cross-sectional side view of the fourth preferred embodiment of the permanent magnet air-core coil generator of the present invention.

Hereinafter, the structural features and other functions and purposes of the present invention will be described in detail as follows according to the accompanying drawings:

[Example 1]

Referring to FIG. 1 to FIG. 4, it is the first preferred embodiment of the permanent magnet air-core coil generator of the present invention, which is used to connect to an external power input mechanism (such as a motor, etc.), and then convert kinetic energy into electrical energy. The generator, its preferred specific embodiment includes: an air-core coil 10, and a permanent magnet rotor 20 arranged on the air-core coil 10, wherein: as shown in FIG. 2 and FIG. A hollow frame 11, and a magnetic induction coil 12 wound around the hollow frame 11; wherein, the hollow frame 11 is specifically an O-shaped insulating ring body made of insulating material, so that the center of the hollow frame 11 is There is a hollow part 13, the hollow part 13 can be a strip-shaped through hole passing through the hollow frame, or a strip-shaped concave hole concave from one side (as shown in FIG. 4); the magnetic induction coil 12 is made of copper wire The hollow frame 11 is wound around the hollow frame 11; furthermore, the hollow coil 10 can be installed on any machine tool or in a motor or an independent casing; in addition, the hollow frame 11 has a coil slot 112 and a partition 112b , the spacer 112b is arranged in the middle of the coil slot 112, thereby dividing the coil slot 112 into two parts, so when the magnetic induction coil 12 is arranged in the hollow frame 11, the magnetic induction coil 12 itself will also be separated The member 112b is divided into two parts.

As shown in FIG. 2 to FIG. 4 , the permanent magnet rotor 20 preferably has a cylindrical permanent magnet 21 (the cylindrical shape is only an example and not a limitation, in fact, the permanent magnet 21 can be of various shapes), and the permanent magnet 21 is connected with the permanent magnet 21. At least one rotating shaft 22 combined with the magnet 21, the at least one rotating shaft 22 is used for connecting to the power input mechanism, wherein the at least one rotating shaft 22 is two rotating shafts 22 combined with the two ends of the permanent magnet 21, or a single rotating shaft 22 passing through the permanent magnet 21 Spindle 22. For the convenience of description, the following paragraphs are only described in the form of the at least one rotating shaft 22 being the two rotating shafts 22 . For example, those skilled in the art can think of the implementation of the aspect of the single rotating shaft 22 from the description herein. Thereby, the permanent magnet 21 is rotatably arranged in the hollow portion 13 of the hollow frame 11 of the hollow coil 10 through the positioning function of the two rotating shafts 22 , and the two rotating shafts 22 respectively pass through the hollow frame 11 . Thereby, when the permanent magnet rotor 20 rotates, the magnetic induction coil 12 of the air-core coil 10 can generate electromagnetic induction, thereby outputting a certain value of voltage and current.

[Example 2]

Referring to FIG. 5 to FIG. 8, it is a second preferred embodiment of the permanent magnet air-core coil generator of the present invention, which is also used to connect to an external power input mechanism (such as a motor, etc.), thereby converting kinetic energy into electrical energy. The generator, its preferred specific embodiment includes: two groups of air-core coils 10, and a permanent magnet rotor 20 disposed in the two groups of air-core coils 10, wherein: the hollow frame of each of the air-core coils 10 in this embodiment 11. The structures of the magnetic induction coil 12 and the hollow portion 13 are the same as those of the first embodiment above, and the permanent magnet rotor 20 in this embodiment is also the same as that of the first embodiment above; 6 and 8), the inner sides of the hollow frames 11 of the two groups of air-core coils 10 are abutted together, so that the hollow portions 13 of the two groups of air-core coils 10 are connected to each other; and the permanent magnet rotor 20 The permanent magnet 21 is rotatably arranged in the hollow portion 13 formed by the two groups of hollow coils 10 butted together (as shown in FIG. 8 ), and the two rotating shafts 22 extend out of the two ends of the hollow frame 11 respectively (as shown in FIG. 8 ). 5 and 7), one of the rotating shafts 22 is connected to the power input mechanism; thereby, when the permanent magnet rotor 20 rotates, the magnetic induction coils 12 of the two groups of air-core coils 10 can generate electromagnetic Induction, and then output a certain value of voltage and current.

[Example 3]

Referring to FIG. 9 to FIG. 12, it is a third preferred embodiment of the permanent magnet air-core coil generator of the present invention, which is also used to connect to an external power input mechanism (such as a motor, etc.), and then convert kinetic energy into It is a generator of electrical energy, and its preferred specific embodiment includes: two sets of air-core coils 10, and a permanent magnet rotor 20 arranged in the two sets of air-core coils 10, wherein: each of the air-core coils 10 also has the above-mentioned implementation. In the hollow frame 11, the magnetic induction coil 12 and the hollow part 13 of the first example, in this embodiment, the two sets of hollow coils 10 are arranged symmetrically, and the inner sides of the hollow frames 11 of the two sets of hollow coils 10 are separated (spaced apart from each other). A distance) forms a rotor space A1; the two groups of air-core coils 10 can also be arranged on any machine tool or in a motor or an independent casing, so as to maintain a symmetrical arrangement to form the rotor space A1. Thereby, the permanent magnets 21 of the permanent magnet rotor 20 are rotatably arranged in the rotor space A1 between the two sets of air-core coils 10 , and the two side parts of the permanent magnets 21 extend into the hollow cores of the air-core coils 10 . Then, when the permanent magnet rotor 20 rotates, the magnetic induction coils 12 of the two groups of air-core coils 10 generate electromagnetic induction, thereby outputting a certain value of voltage and current.

Referring again to FIG. 2 , the hollow frame 11 of the above-mentioned hollow coil 10 is formed by integral molding of insulating material, and has two retaining rings 111 formed on the periphery of both ends, and a coil slot 112 located between the two retaining rings 111 , so that the magnetic induction coil 12 is wound in the coil slot 112 to form the air-core coil 10 .

Referring to FIGS. 2 , 6 and 10 again, one end of the rotating shaft 22 of the permanent magnet rotor 20 corresponding to the permanent magnet 21 is provided with a joint portion 221 , and the joint portion 221 may be a head with a larger diameter, and The coupling portion 221 can be assembled on the end of the permanent magnet 21 through a screw-locking structure or a fitting structure, so that the external power input mechanism can drive the permanent magnet rotor 20 to rotate continuously.

The permanent magnet air-core coil generators of the first, second and third embodiments of the present invention can be installed on any machine tool or in a motor or an independent installation box, so the above-mentioned rotating shaft 22 can pass through the machine tool, motor or independent installation box. Install in the shaft hole and bearing of the box. Referring to FIG. 13 , and taking the third embodiment as an example, the present invention can also implement a positioning element 30 , the positioning element is a U-shaped frame or other shapes, thereby making the permanent magnet 21 of the permanent magnet rotor 20 two The rotating shafts 22 at the ends are respectively rotatably passed through the positioning element The component 30 is used to achieve the effect that the permanent magnet rotor 20 can rotate between the two groups of air-core coils 10 . 14 and 15 again, the present invention can also be implemented with an installation box 40, the installation box 40 includes a bottom plate 41, a top plate 42, two end plates 43, and a rectangular box body composed of two side plates 44, and Use the fixing element 45 to lock the above-mentioned plates together, wherein the two end plates 43 are respectively provided with a bearing 46, whereby the above-mentioned two rotating shafts 22 are passed through the bearing 46, so that the permanent magnet air-core coil generator is assembled in the installation box. In the body 40, one of the rotating shafts 22 is used as the power input end.

[Example 4]

Referring to FIGS. 16 to 18 , it is the fourth preferred embodiment of the permanent magnet air-core coil generator of the present invention, which is also used to connect to an external power input mechanism (such as a motor, etc.) to convert kinetic energy into electrical energy. The structure of this embodiment is substantially the same as that of the first embodiment, so only the differences will be described below: the difference between this embodiment and the first embodiment is that the center of the coil slot 112 of the first embodiment has a spacer 112b. When the magnetic induction coil 12 is placed in the coil slot 112, the magnetic induction coil 12 itself is also divided into two parts by the partition 112b, so the magnetic induction coil 12 of the first embodiment cannot be completely closely arranged; The coil slot 112 of the hollow frame 11 of the embodiment has a flat outer surface without a partition 112b, so the coil slot 112 can be used for the magnetic induction coils to be closely arranged therein. The induction coils 12 can be placed in the coil slots 112 in a completely close arrangement. Since the magnetic induction coils 12 can be arranged more closely, the electromagnetic induction generated by the magnetic induction coils 12 is also stronger.

It should be noted that, as long as it is reasonable, the permanent magnet air-core coil generator of this embodiment can be combined with various details of the foregoing embodiments.

The permanent magnet air-core coil generator of the present invention is mainly based on the hollow portion 13 structure of one or two sets of air-core coils 10, so that the air-core coil 10 forms an iron-free structure, and then the permanent magnet rotor 20 has a circular shape. The cylindrical permanent magnet 21 is disposed in the hollow portion 13 of the air-core coil 10, thereby avoiding the magnetic attraction resistance between the permanent magnet 21 and the conventional iron core, thereby enabling the external power input mechanism to drive the coil without resistance. The permanent magnet 21 rotates continuously to obtain a better output effect of a certain value of voltage and current.

To sum up, the permanent magnet air-core coil generator of the present invention has practicability and creativity, and the application of its technical means is undoubtedly novel, and the efficacy and design purpose are indeed consistent, which has been said to be a reasonable progress. To this end, an application for an invention patent is filed in accordance with the law, but I urge the Jun Bureau to give me a detailed review and grant the patent for prayer.

10: Hollow coil

11: Hollow frame

12: Magnetic induction coil

13: hollow part

20: Permanent magnet rotor

21: Permanent magnet

22: Spindle

221: Joint

Claims (10)

A permanent magnet air-core coil generator, which is used for being connected to an external power input mechanism to convert kinetic energy into electrical energy, comprising: a set of air-core coils, the air-core coils have a ring-shaped hollow frame, and a set of air-core coils is wound around the hollow core A magnetic induction coil around the frame; wherein, the center of the hollow frame has a hollow part; and a permanent magnet rotor, which has a permanent magnet, and at least one rotating shaft combined with the permanent magnet; wherein, the permanent magnet can rotate is arranged on the hollow part of the hollow coil, and the at least one rotating shaft is used for connecting to the power input mechanism, wherein the at least one rotating shaft is two rotating shafts combined with both ends of the permanent magnet, or a single rotating shaft passing through the permanent magnet; The hollow frame has two retaining rings formed on the periphery of both ends in the direction of one side portion thereof, and a coil slot located between the two retaining rings, wherein the direction of the side portion is the same as that of the at least one rotating shaft of the permanent magnet rotor. An extension direction is orthogonal; the magnetic induction coil is wound around the coil slot and wound into a circular cylinder arranged in a close and concentrated arrangement; wherein the coil slot of the hollow frame has a flat slot surface, and the slot surface is used for Contact with the air-core coil, and place the magnetic induction coil in close arrangement therein; wherein, the rotation direction of the permanent magnet rotor corresponds to the tangent line at the group of air-core coils and the winding direction of the group of air-core coils. The lines are not parallel. The permanent magnet air-core coil generator as claimed in claim 1, further comprising two sets of air-core coils arranged symmetrically to replace the set of air-core coils, the inner sides of the hollow frames of the two sets of air-core coils are abutted against each other, and the two sets of air-core coils The hollow parts of the hollow coils are connected to each other; and the permanent magnets of the permanent magnet rotor are rotatably arranged in the hollow parts formed by the butt joints of the two sets of hollow coils, and the at least one rotating shaft extends out of both ends of the hollow frame respectively. The permanent magnet air-core coil generator as claimed in claim 1, further comprising two sets of air-core coils arranged symmetrically to replace the one group of air-core coils, the inner sides of the hollow frames of the two sets of air-core coils are separated into a rotor space; and the permanent The magnets are rotatably arranged in the rotor space between the two sets of hollow coils, the two side parts of the permanent magnets extend into the hollow parts of the hollow coils, and the at least one rotating shaft extends out of the two ends of the hollow frame respectively. The permanent magnet air-core coil generator according to claim 1, 2 or 3, wherein the hollow frame is an O-shaped insulating ring body, and the hollow portion is a strip-shaped through hole passing through the hollow frame, or is recessed from one side a strip of concave holes. The permanent magnet air-core coil generator as claimed in claim 1, wherein one end of the at least one rotating shaft corresponding to the permanent magnet is provided with a joint portion, and the joint portion is assembled with the end of the permanent magnet. The permanent magnet air-core coil generator as claimed in claim 1, 2 or 3, further comprising a positioning element, and the at least one rotating shaft at both ends of the permanent magnets of the permanent magnet rotor is respectively rotatably penetrated through the positioning element. The permanent magnet air-core coil generator as claimed in claim 6, wherein the positioning element is a U-shaped frame. The permanent magnet air-core coil generator according to claim 1, 2 or 3, further comprising an installation box, the installation box is a rectangular box composed of a bottom plate, a top plate, two end plates, two side plates and a plurality of fixing elements body; and the at least one rotating shaft of the permanent magnet rotor passes through the two end plates. The permanent magnet air-core coil generator as claimed in claim 8, wherein the two end plates are respectively provided with a bearing, and the at least one rotating shaft is respectively penetrated through the bearing. The permanent magnet air-core coil generator according to claim 1, wherein the hollow frame has a spacer and a coil slot, the spacer is located in the middle of the coil slot, so that the coil slot is divided into two sub-sections.

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