CN108809022B - Disc type generator - Google Patents
Disc type generator Download PDFInfo
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- CN108809022B CN108809022B CN201710292078.9A CN201710292078A CN108809022B CN 108809022 B CN108809022 B CN 108809022B CN 201710292078 A CN201710292078 A CN 201710292078A CN 108809022 B CN108809022 B CN 108809022B
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K16/00—Machines with more than one rotor or stator
- H02K16/02—Machines with one stator and two or more rotors
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2213/00—Specific aspects, not otherwise provided for and not covered by codes H02K2201/00 - H02K2211/00
- H02K2213/03—Machines characterised by numerical values, ranges, mathematical expressions or similar information
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- Synchronous Machinery (AREA)
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Abstract
The invention relates to a disc type generator which comprises a first rotor disc, a first coil winding and a stator disc, wherein the first rotor disc comprises a plurality of first rotor cores which are radially and uniformly distributed on the same circumference, the stator disc comprises a plurality of stator cores which are radially and uniformly distributed on the same circumference, one side of each stator core is provided with a first embedded groove, the first coil winding is embedded in each first embedded groove, the first rotor disc and the stator disc are coaxially arranged and are rotatably arranged on one side of the stator disc, and each first rotor core and each stator core correspond to each other one by one and are encircled to form a first magnetic flux loop which is surrounded with the first coil winding. According to the disc type generator, the first coil winding is of an annular structure arranged between the first rotor core and the stator core, the winding process of the first coil winding is simple, the first coil winding is simple to arrange and is directly fixed with each first rotor core or each first stator core, an additional fixing structure is omitted, and the overall structure of the disc type generator is simple.
Description
Technical Field
The invention relates to the technical field of generators, in particular to a disc type generator.
Background
The power generation of the generator is based on an electromagnetic induction phenomenon, which is called as an electromagnetic induction phenomenon, when a part of conductors of a closed circuit do motion of cutting magnetic induction lines in a magnetic field, current can be generated in the conductors. The generator in the prior art mainly comprises a stator and a rotor, wherein the stator consists of a stator disc, a coil winding, a base and other structural members for fixing the stator disc, the coil winding, the base and other structural members, the rotor consists of a rotor core (or a magnetic pole and a magnetic yoke) winding, a rotating shaft and other components, and the rotor rotates to enable the coil winding to cut magnetic induction lines so as to realize power generation of the generator. The power generation method commonly used in the prior art enables the coils or the magnets to have relative motion, so as to generate power.
The existing disc generator is also used for cutting magnetic induction lines to generate power and generally comprises a first magnet group and a second magnet group, an armature is arranged between the two magnet groups, the armature comprises a plurality of coils, the coils are enabled to cut the magnetic induction lines by rotating the armature to generate power, in order to increase the power generation efficiency, the coils are simultaneously arranged, and the winding method of each coil is complex; since the coils are moved, it is necessary to firmly fix the respective coils, and in order to fix the respective coils, the armature is provided with a fixing plate on which the respective coils are fixedly mounted, so that the armature structure is complicated. Therefore, the disc generator in the prior art has the problems of complex coil winding method and complex armature structure.
Disclosure of Invention
The invention aims to provide a disk generator, and aims to solve the problems that a coil winding method is complex and an armature structure is complex in the disk generator in the prior art.
In order to solve the technical problems, the technical scheme of the invention is as follows: a disc generator comprises a first rotor disc, a first coil winding and a stator disc, wherein the first rotor disc comprises a plurality of first rotor cores which are radially and uniformly distributed on the same circumference, the stator disc comprises a plurality of stator cores which are radially and uniformly distributed on the same circumference, a first embedded groove is formed in one side of each stator core, the first coil winding is embedded in each first embedded groove, the first rotor disc and the stator disc are coaxially arranged and rotatably arranged on one side of the stator disc, and the first rotor cores and the stator cores correspond to each other one by one and are encircled to form a first magnetic flux loop of the first coil winding.
Further, the disc generator further includes a second coil winding and a second rotor disc coaxially connected to the first rotor disc and moving synchronously, the second rotor disc includes a plurality of second rotor cores radially and uniformly distributed on the same circumference, a second embedded groove is disposed on the other side of each stator core, the second coil winding is embedded in each second embedded groove, the second rotor disc and the stator disc are coaxially disposed and rotatably disposed on the other side of the stator disc, each second rotor core corresponds to each stator core one to one and surrounds a second magnetic flux loop surrounding the second coil winding, and each first rotor core and each second rotor core are disposed in a staggered manner.
Further, the number of the stator cores is n, n is greater than or equal to 1, the numbers of the first rotor cores and the second rotor cores are both m, m is greater than or equal to 1, n is xm, x is greater than or equal to 1, and the staggering angle of each first rotor core and the second rotor core is 360/(2 m).
Further, the number of the stator cores is twice that of the first rotor cores, the number of the stator cores is twice that of the second rotor cores, and magnetic fields with opposite directions in the radial direction are respectively arranged on the adjacent stator cores.
Furthermore, the side surface of each stator core adjacent to the first rotor core protrudes and extends to form two first end pins of the first embedded groove, and the side surface of the first rotor core and the two first end pins enclose the first magnetic flux loop;
and the side surface of each stator core adjacent to the second rotor core protrudes and extends to form two second end pins of the second embedded groove, and the side surface of the second rotor core and the two second end pins surround the second magnetic flux loop.
Further, each stator core comprises a first T-shaped core, a second T-shaped core and a magnetic block, the first T-shaped core comprises a first radial section and a first axial section connected to a first end of the first radial section, the second T-shaped core comprises a second radial section and a second axial section connected to a first end of the second radial section, an N pole and an S pole of the magnetic block are respectively connected to a second end of the first radial section and a second end of the second radial section, the first embedded groove is formed between the first end of the first axial section and the first end of the second axial section, and the second embedded groove is formed between the second end of the first axial section and the second end of the second axial section.
Further, each first rotor core and each second rotor core are in a T shape, a stepped boss shape, an isosceles trapezoid shape or a sector shape.
Furthermore, the stator disc further comprises a stator frame, wherein the stator frame is provided with fixing grooves for fixing the stator cores, and the stator cores are embedded in the fixing grooves.
Furthermore, a first annular groove communicated with the first embedding groove is formed in one side end face of the stator disc, the first coil winding is embedded in the first embedding groove and the first annular groove, a second annular groove communicated with the second embedding groove is formed in the other side end face of the stator disc, and the second coil winding is embedded in the second embedding groove and the second annular groove.
Further, the first rotor disk further includes a first rotor frame, the second rotor disk further includes a second rotor frame, the first rotor frame and the second rotor frame are connected through a rotating shaft, each of the first rotor cores is fixed to the first rotor frame, and each of the second rotor cores is fixed to the second rotor frame.
The invention provides a disk generator, wherein a first rotor core and a stator core form a plurality of first magnetic flux loops, each magnetic flux loop surrounds a ring of a first coil winding to form a plurality of small magnetic fluxes, the small magnetic fluxes are integrated to form the magnetic flux of the first coil winding, the magnetic flux is maximum when the first rotor core and the stator core are opposite, the first magnetic flux loops are changed by rotating the first rotor core or the stator core, the magnetic flux of each first magnetic flux loop is changed, the magnetic flux of the first coil winding is changed, and the magnetic flux of the first coil winding is changed to further realize power generation. In the invention, the first coil winding is of an annular structure arranged between the first rotor core and the stator core, the winding process of the first coil winding is simple, the first coil winding is simple to arrange and is directly fixed with each first rotor core or each first stator core, an additional fixing structure is omitted, and the overall structure of the disc generator is simple.
Drawings
Fig. 1 is a schematic structural diagram of a disk generator provided in an embodiment of the present invention;
fig. 2 is an exploded view of a disc generator provided by an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a stator plate according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a stator core according to an embodiment of the present invention;
FIG. 5 is a schematic structural view of a second rotor provided in accordance with an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a manner in which a first rotor core and a second rotor core provided in an embodiment of the present invention are surrounded by a stator core;
fig. 7 is a schematic structural diagram of a first rotor core and a second rotor core surrounding a stator core according to an embodiment of the present invention;
fig. 8 is a schematic structural view of a first rotor core and a second rotor core provided in an embodiment of the present invention;
fig. 9 is a diagram of a circuit voltage waveform provided by an embodiment of the invention.
The drawings indicate the description:
100-first rotor disk 110-first rotor core 112-third terminal pin
120- -first rotor frame 121- -first mounting groove 200- -first coil winding
300- -stator disk 310- -stator core 311- -first slot insert
312- -second insertion groove 313- -first end leg 314- -second end leg
315- -magnetic block 316- -first T-core 317- -second T-core
3161- -first radial segment 3162- -first axial segment 3171- -second radial segment
3172- -second axial segment 320- -stator frame 321- -fixing groove
322-first annular groove 323-second annular groove 400-second rotor disk
410-second rotor core 411-fourth end leg 420-second rotor frame
421-the second mounting groove 500-the second coil winding 600-the rotating shaft.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail with reference to the accompanying drawings 1 to 9 and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
It should be noted that the terms of orientation such as left, right, up, down, etc. in the present embodiment are only relative concepts or reference to the normal use state of the product, and should not be considered as limiting.
If the terms "first", "second", etc. are used in this embodiment to define parts, those skilled in the art will recognize that: the terms "first" and "second" are used merely to distinguish one element from another in a descriptive sense and are not intended to have a special meaning unless otherwise stated.
In addition, terms used for indicating a positional relationship or a shape in any technical solutions disclosed in the above embodiments include a state or a shape similar, analogous, or close thereto unless otherwise stated. Any component provided by the embodiments of the present invention may be assembled from multiple separate components or may be a single component manufactured by an integral molding process.
As shown in fig. 1 and 2, the present embodiment is a disk generator including a first rotor disk 100, a first coil winding 200, and a stator disk 300. The first rotor disk 100 includes a plurality of first rotor cores 110, and the first rotor cores 110 are uniformly distributed on the same circumference in a radial shape. The stator disc 300 includes a plurality of stator cores 310, the stator cores 310 are uniformly distributed on the same circumference in a radial shape, a first embedded groove 311 is formed on one side of each stator core 310, and a plane where each first rotor core 110 is located is parallel to a plane where each stator core 310 is located. The first coil windings 200 are of an annular structure, and the first coil windings 200 are embedded in the first embedded grooves 311, specifically, the first coil windings 200 are integrally embedded in all the first embedded grooves 311. The first rotor disc 100 and the stator disc 300 are coaxially disposed and the first rotor disc 100 is rotatably disposed at one side of the stator disc 300, and each first rotor core 110 and the corresponding stator core 310 may surround a first magnetic flux loop surrounding the first coil winding 200.
In this embodiment, the first rotor core 110 and the stator core 310 may surround a first magnetic flux loop surrounding the first coil winding 200, i.e., a magnetic field passes through the inside and outside of the loop of the first coil winding 200. When each first rotor core 110 is aligned with each stator core 310 at the corresponding position, the magnetic flux of the first magnetic flux circuit is maximum, the first rotor disc 100 rotates, and when the first rotor core 110 rotates to another adjacent stator core 310, the relative position of the first rotor core 110 and the stator core 310 changes, and the magnetic flux of the first magnetic flux circuit changes until the first rotor core 110 rotates to another adjacent stator core 310, the magnetic flux of the first magnetic flux circuit returns to the maximum state. The first rotor disc 100 and the stator disc 300 are rotatable relative to each other about the axis C, so that the magnetic flux of each first magnetic flux circuit changes, and the magnetic flux of the first coil winding 200 also changes, and the disc generator of the present embodiment generates power. The first rotor core 110 and the stator core 310 form a plurality of first magnetic flux loops, each first magnetic flux loop surrounds a ring of the first coil winding 200 to form a plurality of small magnetic fluxes, the small magnetic fluxes are integrated to form the magnetic flux of the first coil winding 200, when the first rotor core 110 and the stator core 310 are opposite, the magnetic flux is maximum, the first magnetic flux loops are changed by rotating the first rotor core 110 or the stator core 310, the magnetic flux of each first magnetic flux loop is changed, the magnetic flux of the first coil winding 200 is changed, and the magnetic flux of the first coil winding 200 is changed to further realize power generation. In this embodiment, the first coil winding 200 is an annular structure disposed between the first rotor core 110 and the stator core 310, the winding process of the first coil winding 200 is simple, the first coil winding 200 is simple to arrange, and is directly fixed to each first rotor core 110 or the stator core 310, so that an additional fixing structure is omitted, and the overall structure of the disc generator is simple.
Further, the coaxial arrangement of first rotor disk 100 and stator disk 300 means that first rotor disk 100 and stator disk 300 have the same axis C and are rotatable relative to each other about axis C, specifically, first rotor disk 100 rotates about axis C while stator disk 300 is stationary.
Further, the first insertion groove 311 forms an interrupted ring-groove-like structure in which the first coil winding 200 is inserted.
Further, as shown in fig. 1 and fig. 2, the disk generator further includes a second rotor disk 400 and a second coil winding 500, the second rotor disk 400 is coaxially connected with the first rotor disk 100 for synchronous movement, and the stator disk 300 is disposed between the first rotor disk 100 and the second rotor disk 400. The second rotor disc 400 includes a plurality of second rotor cores 410, the second rotor cores 410 are uniformly distributed on the same circumference in a radial shape, and a plane where the second rotor cores 410 are located is parallel to a plane where the stator cores 310 are located. The other side of each stator core 310 is provided with a second embedded groove 312, the second coil winding 500 is of an annular structure, the second coil winding 500 is embedded in each second embedded groove 312, the embedding specifically means that one part of the annular structure of the second coil winding 500 is embedded in the second embedded groove 312, and the second coil winding 500 is integrally embedded in all the second embedded grooves 312. Each of the second rotor cores 410 and the stator core 310 may enclose a second magnetic flux loop around the second coil winding 500. Each of the first rotor cores 110 is disposed to be staggered with respect to the second rotor cores 410 in a view perpendicular to a plane in which each of the first rotor cores 110 is disposed. In this embodiment, the second rotor disc 400 is added on the basis of the first rotor disc 100 and the stator disc 300, and each first rotor core 110 and each second rotor core 410 are staggered, and do not face the same stator core 310 at the same time, so that no power generation interference is generated, the space on the other side of the stator disc 300 can be fully utilized, and the power generation efficiency is increased.
Specific examples of the staggered arrangement of the first rotor cores 110 and the second rotor cores 410 are as follows:
the first rotor core 110 is divided into a first rotor core 110 of No. one, a second rotor core 110, a third rotor core 110, and a fourth rotor core 110;
the second rotor core 410 is divided into a first second rotor core 410, a third second rotor core 410, and a fourth second rotor core 410;
then, the first rotor core 110, the second first rotor core 110, the third first rotor core 110 and the fourth first rotor core 110 are respectively disposed on the first sides of the first stator core 310, the second stator core 310, the third stator core 310, the fourth stator core 310, the fifth stator core 310, the sixth stator core 310, the seventh stator core 310 and the eighth stator core 310, and the first rotor core 110 corresponds to the first stator core 310, the second first rotor core 110 corresponds to the third stator core 310, the third first rotor core 110 corresponds to the fifth stator core 310, and the fourth first rotor core 110 corresponds to the seventh stator core 310;
correspondingly, the first second rotor core 410, the third second rotor core 410 and the fourth second rotor core 410 are respectively arranged on the second sides of the first stator core 310, the second stator core 310, the third stator core 310, the fourth stator core 310, the fifth stator core 310, the sixth stator core 310, the seventh stator core 310 and the eighth stator core 310, the first second rotor core 410 corresponds to the second stator core 310, the second rotor core 410 corresponds to the fourth stator core 310, the third second rotor core 410 corresponds to the sixth stator core 310, and the fourth second rotor core 410 corresponds to the eighth stator core 310;
in this way, the first rotor cores 110 and the second rotor cores 410 are staggered. The second rotor core 410 and the stator core 310 form a plurality of second magnetic flux loops, each second magnetic flux loop surrounds a ring of the second coil winding 500 to form a plurality of small magnetic fluxes, the small magnetic fluxes are integrated to form the magnetic flux of the second coil winding 500, and the magnetic flux is maximum when the second rotor core 410 and the stator core 310 are aligned. The second rotor core 410 rotates in synchronization with the first rotor core 110 or rotates the stator core 310 to change the second magnetic flux circuit. When each second rotor core 410 is aligned with each stator core 310 at the corresponding position, the magnetic flux of the second magnetic flux circuit is maximum, the second rotor disk 400 rotates, and when the second rotor core 410 rotates to another adjacent stator core 310, the relative position of the second rotor core 410 and the stator core 310 changes, and the magnetic flux of the second magnetic flux circuit changes, until the second rotor core 410 rotates to another adjacent stator core 310, the magnetic flux of the second magnetic flux circuit returns to the maximum state. The magnetic flux of each second magnetic flux circuit changes, so that the magnetic flux of the second coil winding 500 changes, and the magnetic flux of the second coil winding 500 changes, thereby realizing power generation. In the present embodiment, the rotation direction means that the first rotor core 110 or the second rotor core 410 rotates on the corresponding circumference, respectively, and rotates toward the adjacent stator core 310.
Further, a second rotor disk 400 is disposed on the opposite side of the stator disk 300 from the first rotor disk 100, the second rotor disk 400 having the same axis C as the first rotor disk 100 and being disposed synchronously, the first rotor disk 100 and the second rotor disk rotating synchronously.
Further, the second insertion groove 312 forms another discontinuous annular groove-like structure in which the second coil winding 500 is inserted.
Further, the magnetic fields of the first magnetic flux loop and the second magnetic flux loop are derived from the magnetic blocks 315 in the loops, in this embodiment, the magnetic fluxes of the first magnetic flux loop and the second magnetic flux loop are derived from the stator core 310, specifically, the magnetic blocks 315 are disposed in the stator core 310, two magnetic poles of the magnetic blocks 315 respectively face two ends of the stator core 310, that is, the magnetic field directions are distributed in the radial direction, and the magnetic blocks 315 are specifically disposed in the middle of the stator core 310 respectively.
Further, in the present embodiment, the number of the stator cores 310 is n, n is greater than or equal to 1, and n may be 1, 2, 3, or more, to tens or even hundreds or more; the number of the first rotor cores 110 and the second rotor cores 410 is m, m is greater than or equal to 1, n is xm, x is greater than or equal to 1, m may be 1, 2, 3, or more, to tens or even hundreds or more, x is a multiple of the number of the stator cores 310 with respect to the first rotor cores 110 or the number of the second rotor cores 410, and x may be a multiple of 1, 2, 3, or more. Each of the first rotor cores 110 and the second rotor cores 410 are staggered by an angle of 360 °/(2m), that is, the first rotor cores 110 and the second rotor cores 410 are staggered by a distance which is half of the distance between two adjacent first rotor cores 110 or half of the distance between two adjacent second rotor cores 410.
Further, regarding the number of the stator cores 310 with respect to the first rotor cores 110 or the multiple of the number with respect to the second rotor cores 410, in the present embodiment, it is preferable that x is 1, that is, the number of the first rotor cores 110, the number of the stator cores 310, and the number of the second rotor cores 410 are the same. During rotation of the first and second rotor cores 110 and 410, respectively, with respect to the stator core 310:
when each first rotor core 110 is aligned with the stator core 310, the first rotor core 110 and the stator core 310 enclose a first magnetic flux loop, the magnetic flux of the first magnetic flux loop is maximum, the magnetic flux of the second magnetic flux loop is minimum, and the second rotor core 410 is aligned with the middle position of two adjacent stator cores 310;
the rotation is continued, each first rotor core 110 is far away from the stator core 310 opposite to the first rotor core 110, the second rotor core 410 is close to one of the two adjacent stator cores 310, the first magnetic flux loop is weakened, and the second magnetic flux loop is strengthened;
when each first rotor core 110 rotates to the middle position facing two adjacent stator cores 310, the second rotor core 410 synchronously rotates to the position facing the stator cores 310, the second rotor core 410 and the stator cores 310 enclose a second magnetic flux loop, the magnetic flux of the first magnetic flux loop is minimum, and the magnetic flux of the second magnetic flux loop is maximum;
the first rotor core 110 rotates to another adjacent stator core 310, the second rotor core 410 rotates away from the stator core 310 opposite to the first rotor core, the first magnetic flux loop is enhanced, and the second magnetic flux loop is weakened; in the present embodiment, the rotation away means that the first rotor core 110 or the second rotor core 410 rotates on the corresponding circumference and is away from the stator core 310 which is currently closest to or directly opposite to the first rotor core 110 or the second rotor core 410.
Until the first rotor cores 110 are opposite to the stator cores 310, the first rotor cores 110 and the stator cores 310 surround a first magnetic flux loop, the magnetic flux of the first magnetic flux loop is maximum, the magnetic flux of the second magnetic flux loop is minimum, and the second rotor core 410 is opposite to the middle position of two adjacent stator cores 310, so that one complete rotation is completed. The present embodiment can continue to generate power stably through the above-described rotation process.
Further, regarding the multiple of the number of the stator cores 310 with respect to the first rotor cores 110 or the multiple of the number of the second rotor cores 410, in the present embodiment, it is more preferable that x is 2, that is, the number of the first rotor cores 110 and the number of the second rotor cores 410 are respectively half of the number of the stator cores 310, and the interleaving angle between each first rotor core 110 and each second rotor core 410 is 360 °/(2m), so that the interleaving pitch between each first rotor core 110 and each second rotor core 410 is the same as the pitch between two adjacent stator cores 310. Stator core 310 includes a plurality of a-group cores and a plurality of B-group cores, which are disposed at intervals. During rotation of the first and second rotor cores 110 and 410, respectively, with respect to the stator core 310:
when each first rotor core 110 is aligned with the group a core, the second rotor core 410 is also aligned with the group B core, the magnetic flux of the first magnetic flux loop is maximum, and the magnetic flux of the second magnetic flux loop is maximum;
continuing to rotate, each first rotor core 110 is far away from the group A of cores opposite to the first rotor core, each second rotor core 410 is far away from the group B of cores opposite to the second rotor core, and the first magnetic flux loop and the second magnetic flux loop are weakened at the same time;
when each first rotor core 110 rotates to the middle position opposite to the two adjacent a groups of cores, each second rotor core 410 rotates to the middle position opposite to the two adjacent B groups of cores, and the magnetic flux of the first magnetic flux loop and the magnetic flux of the second magnetic flux loop both reach the minimum state;
the first rotor core 110 and the second rotor core 410 rotate again, and the first magnetic flux loop and the second magnetic flux loop are simultaneously enhanced;
until the first rotor core 110 is opposite to the group A cores, the second rotor core 410 is opposite to the group B cores, the magnetic flux of the first magnetic flux loop is maximum, the magnetic flux of the second magnetic flux loop is maximum, the state of the first magnetic flux loop and the second magnetic flux loop is restored to the initial opposite state, and one complete rotation is completed. The present embodiment can continue to generate power stably through the above-described rotation process.
Further, the magnetic field directions on the adjacent stator cores 310 are opposite, and x is 2, that is, the magnetic blocks 315 are disposed in the stator core 310, the magnetic poles of the magnetic blocks 315 of the adjacent stator cores 310 are opposite, and the magnetic field directions of the magnetic blocks 315 are disposed in the radial direction. The first magnetic field direction is named as positive, the other magnetic field direction is named as negative, the stator core 310 with the positive magnetic field direction is an A-group core, the stator core 310 with the negative magnetic field direction is named as a B-group core, and the A-group core and the B-group core are arranged at intervals. The power generation process is as follows:
(1) when each first rotor core 110 is aligned with the group a core, the second rotor core 410 is aligned with the group B core, the magnetic flux of the first magnetic flux loop is the largest and phi, the corresponding magnetic field direction is positive, the magnetic flux of the second magnetic flux loop is the same largest and phi, and the corresponding magnetic field direction is negative;
(2) continuing to rotate, each first rotor core 110 is far away from the group A cores directly opposite to the first rotor core, each second rotor core 410 is far away from the group B cores directly opposite to the second rotor cores, and the magnetic flux of the first magnetic flux loop and the magnetic flux of the second magnetic flux loop are continuously weakened;
(3) when each first rotor core 110 rotates to the middle position opposite to the two adjacent a and B groups of cores, each second rotor core 410 rotates to the middle position opposite to the two adjacent B and a groups of cores, and the magnetic fluxes of the first and second magnetic flux loops reach the minimum state and are 0;
(4) the rotor core rotates again, each first rotor core 110 rotates to another adjacent group B core, each second rotor core 410 rotates to another adjacent group A core, the first magnetic flux loop and the second magnetic flux loop are enhanced simultaneously, the magnetic field direction corresponding to the first magnetic flux loop is negative, and the magnetic field direction corresponding to the second magnetic flux loop is positive;
(5) until the first rotor iron cores 110 are opposite to the B group of iron cores, the second rotor iron cores 410 are opposite to the A group of iron cores, the magnetic flux of the first magnetic flux loop is phi at the maximum, the corresponding magnetic field direction is negative, the magnetic flux of the second magnetic flux loop is phi at the maximum, and the corresponding magnetic field direction is positive;
(6) the rotation is continued, each first rotor core 110 is far away from the group B cores directly opposite to the first rotor core, each second rotor core 410 is far away from the group A cores directly opposite to the second rotor cores, and the magnetic flux of the first magnetic flux loop and the magnetic flux of the second magnetic flux loop are continuously reduced;
(7) when each first rotor core 110 rotates to the middle position opposite to two adjacent groups a and B, each second rotor core 410 rotates to the middle position opposite to two adjacent groups a and B, and the magnetic flux of the first magnetic flux loop and the magnetic flux of the second magnetic flux loop both reach the minimum state and are 0;
(8) the first rotor core 110 and the second rotor core 410 rotate to form a first magnetic flux loop and a second magnetic flux loop, wherein the first magnetic flux loop and the second magnetic flux loop are simultaneously enhanced, the magnetic field direction corresponding to the first magnetic flux loop is positive, and the magnetic field direction corresponding to the second magnetic flux loop is negative;
(9) finally, the rotor core is rotated until each first rotor core 110 is opposite to the group a core, and the second rotor core 410 is opposite to the group B core, the magnetic flux of the first magnetic flux loop is the largest and phi, the corresponding magnetic field direction is positive, the magnetic flux of the second magnetic flux loop is also the largest and phi, the corresponding magnetic field direction is negative, and the state returns to the state of the step (1).
The first half of the power generation period from the step (1) to the step (5), and the second half of the power generation period from the step (6) to the step (8). In this embodiment, the variation of the first magnetic flux circuit and the second magnetic flux circuit is 2 Φ for one complete rotation.
In this embodiment, the first rotor core 110 and the stator core 310 surround to form a first magnetic flux loop, and the second rotor core 410 and the stator core 310 surround to form a second magnetic flux loop, where the specific surrounding forms include the following two types:
first, a dotted line in fig. 6 is a second rotor core 410, and is intended to indicate that the second rotor core 410 can rotate to this position. As shown in fig. 6, two first end legs 313 protruding toward the first rotor core 110 are respectively disposed at two end portions of one side surface of each stator core 310, the two first end legs 313 form a first embedded groove 311, and the first rotor core 110 is connected to the two first end legs 313 of the stator core 310 and surrounds a first magnetic flux loop; the two end portions of the other side surface of each stator core 310 are respectively provided with a second end leg 314 protruding and extending toward the second rotor core 410, the two second end legs 314 form a second embedded groove 312, and the second rotor core 410 is connected with the two second end legs 314 of the stator core 310 and surrounds a second magnetic flux circuit. The first coil winding 200 is conveniently embedded between the two first end pins 313, the second coil winding 500 is conveniently embedded between the two second end pins 314, and then the first coil winding 200 and the second coil winding 500 are prevented from contacting the first rotor core 110 and the second rotor core 410 respectively to the greatest extent during rotation. In the first enclosure scheme, the first magnetic flux loop and the second magnetic flux loop circulate along the shapes of two sides of the stator core 310, the first magnetic flux loop circulates between the first rotor core 110 and the stator core 310, the second magnetic flux loop circulates between the second rotor core 410 and the stator core 310, and the protruding structures on two sides of the stator core 310 respectively guide a magnetic field to directly pass through the first coil winding 200 and the second coil winding 500, so that magnetic leakage can be effectively reduced, the magnetic flux variation can be increased, and the power generation efficiency can be improved. The structures of the first rotor core 110 and the second rotor core 410 are simpler, the weights of the first rotor core 110 and the second rotor core 410 are reduced, and the processing and the assembly are easy.
In a surrounding form, the present invention is particularly suitable for the scheme in which the first rotor core 110 and the second rotor core 410 rotate synchronously and the stator core 310 is fixed, and the structure of the first rotor core 110 and the second rotor core 410 is simplified and the weight is reduced, so that the rotor can rotate conveniently.
Second, a dotted line in fig. 7 is a second rotor core 410, and is intended to indicate that the second rotor core 410 can rotate to this position. As shown in fig. 7, the two ends of each first rotor core 110 are respectively provided with third terminal pins 112 protruding and extending toward the stator core 310, the two ends of each stator core 310 are respectively provided with first terminal pins 313 protruding and extending toward the first rotor core 110, the two first terminal pins 313 form first embedded grooves 311, and the two third terminal pins 112 of the first rotor core 110 and the two first terminal pins 313 of the stator core 310 enclose a first magnetic flux loop; the two ends of each second rotor core 410 are respectively provided with a fourth terminal pin 411 protruding and extending toward the stator core 310, the two ends of each stator core 310 are respectively provided with a second terminal pin 314 protruding and extending toward the second rotor core 410, the two second terminal pins 314 form a second embedded groove 312, and the two fourth terminal pins 411 of the second rotor core 410 and the two second terminal pins 314 of the stator core 310 enclose a second magnetic flux circuit.
The two surrounding forms in this embodiment facilitate the first ring winding 200 to be embedded between the two first end pins 313, and facilitate the second ring winding 500 to be embedded between the two second end pins 314, so as to avoid the first ring winding 200 and the second ring winding 500 from contacting the second core 310 to the greatest extent during rotation. In addition, in the two-enclosure form of the present embodiment, the first rotor core 110, the stator core 310, and the second rotor core 410 have balanced structures, and the weight distribution is reasonable.
The two enclosing forms have the same technical effect, the first coil winding 200 and the second coil winding 500 can be conveniently and fixedly installed, the distance between the first rotor core 110 and the stator core 310 and the distance between the second rotor core 410 and the stator core 310 can be reduced, the leakage flux is reduced, the magnetic field is more concentrated in the first rotor core 110, the stator core 310 and the second rotor core 410, the magnetic flux variation of the first coil winding 200 and the second coil winding 500 is increased, and the power generation efficiency is improved; the axial dimension of the disk generator is reduced, and the overall dimension of the disk generator is reduced. In a surrounding form, since the first coil winding 200 and the second coil winding 500 may be completely buried and do not protrude from the stator core 310, the first rotor core 110 may be closer to the stator core 310, and the second rotor core 410 may be closer to the stator core 310, which has a better effect of reducing the size of the disc generator and improves energy density.
In other embodiments of the magnetic flux sources of the first and second magnetic flux circuits, it is preferable that the stator core 310 is provided with a magnetic block 315. Specifically, as shown in fig. 4, the stator cores 310 are H-shaped cores, each stator core 310 includes a magnetic block 315, a first T-shaped core 316 and a second T-shaped core 317, the first T-shaped core 316 includes a first radial segment 3161 and a first axial segment 3162 connected to a first end of the first radial segment 3161, the second T-shaped core 317 includes a second radial segment 3171 and a second axial segment 3172 connected to a first end of the second radial segment 3171, N and S poles of the magnetic block 315 are respectively connected to a second end of the first radial segment 3161 and a second end of the second radial segment 3171, a first embedded groove 311 is formed between the first end of the first axial segment 3162 and the first end of the second axial segment 3172, and a second embedded groove 312 is formed between the second end of the first axial segment 3162 and the second end of the second axial segment 3172. The first axial segment 3162 has ends corresponding to the first end leg 313 and the second end leg 314, and the second axial segment 3172 has ends corresponding to the first end leg 313 and the second end leg 314.
In the present embodiment, as shown in fig. 8, the shape of the first rotor core 110 and the shape of the second rotor core 410 have various embodiments, such as a straight rod shape, a T shape, a boss shape having multiple steps, an isosceles trapezoid shape, or a sector shape. Each of the first rotor core 110 and the second rotor core 410 has a plurality of pieces.
As shown in fig. 8 (a), (b), and (c), each of the first rotor core 110 and the second rotor core 410 preferably has a shape of a multi-stepped boss, an isosceles trapezoid, or a sector. The first rotor core 110, the stator core 310 and the second rotor core 410 are radially distributed, the inner end of the first rotor core 110, the inner end of the stator core 310 and the inner end of the second rotor core 410 point to the axis respectively, and the distance between the outer ends of the adjacent cores is larger than that between the inner ends. In the foregoing preferred embodiment of the first rotor core 110 and the second rotor core 410, during the rotation process, the edge of the first rotor core 110 is close to the edge of the stator core 310 at all times, and the edge of the second rotor core 410 is close to the edge of the stator core 310 at all times, so that the magnetic fluxes at the two ends of the stator core 310 are prevented from being not connected in the rotation process, and meanwhile, the magnetic fluxes can be distributed in the stator core 310 more uniformly, the change is more gradual, the saturation of the magnetic fluxes is avoided, and the waveform after the power generation is smooth and close to a sine wave. The waveform of the circuit voltage is shown in fig. 9.
As shown in fig. 8 (d), the first and second rotor cores 110 and 410 have a straight rod shape, which has an advantage of simple structure. First rotor core 110 and second rotor core 410 are the T type, and the edge of first rotor core 110 and the edge of second rotor core 410 can be close to stator core 310 simultaneously at the rotation in-process, have avoided the magnetic flux at stator core 310 both ends to link up at the rotation in-process, and the magnetic flux density at the corner of T type can be great, and the voltage waveform after the electricity generation is close to the triangle wave.
As shown in fig. 2, the stator plate 300 further includes a stator frame 320, the stator frame 320 is provided with fixing grooves 321 for fixing the stator cores 310, and the stator cores 310 are embedded in the fixing grooves 321. The stator frame 320 has a disk shape, and the shape of the fixing groove 321 matches the shape of the stator core 310.
Further, a first annular groove 322 is formed in one end surface of the stator frame 320, the first annular groove 322 penetrates through the fixing groove 321 and is communicated with the first embedded groove 311, the first coil winding 200 is embedded in the first embedded groove 311 and the first annular groove 322, a second annular groove 323 is formed in the other end surface of the stator frame 320, the second annular groove 323 penetrates through the fixing groove 321 and is communicated with the second embedded groove 312, and the second coil winding 500 is embedded in the second embedded groove 312 and the second annular groove 323. Due to the existence of the fixing groove 321, the first annular groove 322 and the second annular groove 323 are both disconnected, the first embedded groove 311 makes up the disconnected portion of the first annular groove 322, the second embedded groove 312 makes up the disconnected portion of the second annular groove 323, and the stator core 310 is assembled to make the first annular groove 322 and the second annular groove 323 in an integral state.
As shown in fig. 2, the first rotor disk 100 further includes a first rotor frame 120, and each first rotor core 110 is fixed to the first rotor frame 120; the second rotor disk 400 further includes a second rotor frame 420, and each of the second rotor cores 410 is fixed to the second rotor frame 420. Specifically, the first rotor frame 120 is provided with a first mounting groove 121 for fixing the first rotor core 110, and the second rotor frame 420 is provided with a second mounting groove 421 for fixing the second rotor core 410. In addition, the first and second rotor frames 120 and 420 have both a disk shape.
In this embodiment, the disk generator further includes a rotating shaft passing through the first rotor disk 100, the stator disk 300, and the second rotor disk 400 in sequence, and specifically passing through the first rotor disk 320, the stator frame 320, and the second rotor frame 420 in sequence. The first rotor disk 320 and the second rotor frame 420 are connected with the rotating shaft in a synchronous rotation manner, and specifically, the first rotor disk 320 and the second rotor frame 420 are fixed on the rotating shaft at the same time, or both the first rotor disk 320 and the second rotor frame 420 are connected with the rotating shaft in a key manner. The center of the stator frame 320 is provided with a through hole through which the rotating shaft can pass.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A disc generator comprising a first rotor disc, a first coil winding and a stator disc, characterized in that: the first rotor disc comprises a plurality of first rotor cores which are radially and uniformly distributed on the same circumference, the stator disc comprises a plurality of stator cores which are radially and uniformly distributed on the same circumference, a first embedded groove is formed in one side of each stator core, the first embedded grooves jointly form an interrupted annular groove-shaped structure, the first coil winding is embedded in the annular groove-shaped structure, the first rotor disc and the stator disc are coaxially arranged and are rotatably arranged on one side of the stator disc, and the first rotor cores and parts of the stator cores correspond to each other one by one and are encircled to form a first magnetic flux loop encircling the first coil winding.
2. The disc generator of claim 1, wherein: the disc generator further comprises a second coil winding and a second rotor disc which is coaxially connected with the first rotor disc and moves synchronously, the second rotor disc comprises a plurality of second rotor cores which are radially and uniformly distributed on the same circumference, a second embedded groove is formed in the other side of each stator core, the second coil winding is embedded in each second embedded groove, the second rotor disc and the stator disc are coaxially arranged and rotatably arranged on the other side of the stator disc, each second rotor core corresponds to the other part of each stator core one by one and surrounds a second magnetic flux loop surrounding the second coil winding, and each first rotor core and each second rotor core are arranged in a staggered mode.
3. The disc generator of claim 2, wherein: the number of the stator cores is n, n is larger than or equal to 1, the number of the first rotor cores and the number of the second rotor cores are both m, m is larger than or equal to 1, n is xm, x is larger than or equal to 1, and the staggered angle of each first rotor core and each second rotor core is 360 degrees/2 m.
4. The disc generator of claim 3, wherein: the number of the stator cores is twice that of the first rotor cores, the number of the stator cores is twice that of the second rotor cores, and magnetic fields which are distributed in the radial direction and are opposite in direction are respectively arranged on the two adjacent stator cores.
5. The disk generator as claimed in any one of claims 2 to 4, wherein: the side surface of each stator core adjacent to the first rotor core protrudes and extends to form two first end pins of the first embedded groove, and the side surface of the first rotor core and the two first end pins surround the first magnetic flux loop;
and the side surface of each stator core adjacent to the second rotor core protrudes and extends to form two second end pins of the second embedded groove, and the side surface of the second rotor core and the two second end pins surround the second magnetic flux loop.
6. The disc generator of claim 5, wherein: each stator core comprises a first T-shaped iron core, a second T-shaped iron core and a magnetic block, the first T-shaped iron core comprises a first radial section and a first axial section connected to the first end of the first radial section, the second T-shaped iron core comprises a second radial section and a second axial section connected to the first end of the second radial section, the N pole and the S pole of the magnetic block are respectively connected with the second end of the first radial section and the second end of the second radial section, the first embedded groove is formed between the first end of the first axial section and the first end of the second axial section, and the second embedded groove is formed between the second end of the first axial section and the second end of the second axial section.
7. The disk generator as claimed in any one of claims 2 to 4, wherein: each first rotor core and each second rotor core are in a T shape, a stepped boss shape, an isosceles trapezoid shape or a fan shape.
8. The disk generator as claimed in any one of claims 2 to 4, wherein: the stator disc further comprises a stator frame, wherein the stator frame is provided with fixing grooves for fixing the stator cores, and the stator cores are embedded in the fixing grooves.
9. The disk generator as claimed in any one of claims 2 to 4, wherein: the stator comprises a stator disc, a first coil winding, a second coil winding and a second coil winding, wherein the stator disc is provided with a first annular groove communicated with the first embedded groove on one side end face, the first coil winding is embedded in each first embedded groove and the first annular groove, the second coil winding is embedded in each second embedded groove and the second annular groove on the other side end face.
10. The disk generator as claimed in any one of claims 2 to 4, wherein: the first rotor disc further comprises a first rotor frame, the second rotor disc further comprises a second rotor frame, the first rotor frame and the second rotor frame are connected through a rotating shaft, each first rotor core is fixed on the first rotor frame, and each second rotor core is fixed on the second rotor frame.
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| CN201710292078.9A CN108809022B (en) | 2017-04-28 | 2017-04-28 | Disc type generator |
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| JP2022517881A (en) * | 2019-01-18 | 2022-03-11 | 深▲せん▼市善象智能科技企業 | Outer disc type motor with fence type stator |
| CN111193432B (en) * | 2020-02-05 | 2021-08-31 | 北京纳米能源与系统研究所 | Disc type direct current output friction nanometer power generation device and sensing equipment |
| CN111541319B (en) * | 2020-04-30 | 2021-11-30 | 南京理工大学 | Axial magnetic field hybrid excitation outer rotor hub direct-drive motor |
| CN111864942A (en) * | 2020-08-24 | 2020-10-30 | 汇润电气有限公司 | Disc type stepping motor |
| CN113557648B (en) * | 2020-12-31 | 2024-02-02 | 余仁伟 | Disk type motor stator and winding method thereof |
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| CN101702558A (en) * | 2009-11-13 | 2010-05-05 | 大丰华祺能源科技有限公司 | Disk type permanent magnet wind-driven generator |
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| US7906883B2 (en) * | 2008-06-02 | 2011-03-15 | Honda Motor Co., Ltd. | Axial gap motor |
| JP2011072087A (en) * | 2009-09-24 | 2011-04-07 | Daihatsu Motor Co Ltd | Axial gap motor |
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| CN101702558A (en) * | 2009-11-13 | 2010-05-05 | 大丰华祺能源科技有限公司 | Disk type permanent magnet wind-driven generator |
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