CN204465301U - An ironless induction generator and an instant water faucet for hydropower generation - Google Patents

Abstract

The utility model provides a kind of iron-core-free induction generator, comprising: power section, comprises a power rotor, power rotor is provided with the multistage magnet that magnetizes or the staggered group of magnets of multiple magnetic; Power generation part, comprises main shaft and the driven rotor that coaxially arranges with main shaft and stator; Stator is provided with coil, and driven rotor is provided with the multistage magnet that magnetizes or the staggered group of magnets of multiple magnetic, the magnetic pole logarithm on driven rotor is more than the magnetic pole logarithm on power rotor.Power section and power generation part separate and be oppositely arranged, stator is between power rotor and driven rotor, and power rotor rotates and drives driven rotor to rotate, and the coil on the magnetic field intercepts stator of driven rotor, coil produces induced current.The utility model has the advantages such as compact small and exquisite firm, generating efficiency is high, long service life, purposes are wide, energy-conserving and environment-protective.The utility model additionally provides and a kind ofly adopts the Instant heating type tap of the hydroelectric power generation of above-mentioned generator, greatly saves electric energy.

Description

An ironless induction generator and an instant water faucet for hydropower generation

technical field

The utility model relates to the technical field of generator design, in particular to an induction generator without an iron core and a hydropower instant heating faucet using the motor.

Background technique

The development and utilization of wind power and hydropower as a sustainable energy source are in the stage of rapid development; traditional wind power and hydropower systems mainly include double-fed asynchronous generators and direct-drive synchronous generators. With the development of technology, technicians A permanent magnet induction generator is proposed by adding a permanent magnet synchronous speed rotor to the asynchronous motor.

However, the existing permanent magnet induction generator has the following problems:

1. The permanent magnet induction generator in the prior art usually has an integral structure. When it is used for hydropower generation, the generator needs to be in contact with the water flow, so that the main part of the generator (such as coils, etc.) is prone to rust and corrosion and other problems, thereby reducing the service life of the generator;

2. The permanent magnet induction generator in the prior art has a complex structure, a large overall size, and relatively troublesome installation, so that the scope of use is limited to a certain extent;

3. In the permanent magnet induction generator in the prior art, there is generally one rotor with magnets, or two rotors with the same number of magnets. When the flow rate is large and the flow rate is relatively fast, the above The two implementation methods can normally generate power. When used in the case of small flow and slow flow rate, the rotor speed will be greatly reduced, which will greatly reduce the power generation efficiency of the generator, and even make the generator unable to continue to generate power normally.

Utility model content

In order to solve the above problems, the utility model provides a coreless induction generator, including:

The power part includes a driving rotor, and the driving rotor is provided with multi-stage magnetized magnets or a plurality of magnetically interlaced magnet groups;

The power generation part includes a driven rotor, a stator and a main shaft, the stator and the driven rotor are arranged coaxially with the main shaft, and the driven rotor can rotate around the main shaft; coils are arranged on the stator, and the The driven rotor is provided with multi-stage magnetized magnets or multiple magnetically interlaced magnet groups, and the number of magnetic pole pairs on the driven rotor is greater than that on the driving rotor;

The driving rotor rotates to drive the driven rotor to rotate, the magnetic field of the driven rotor cuts the coil on the stator, and the coil generates an induced current.

Preferably, the multi-stage magnetized magnets or the multiple magnetically interlaced magnet groups provided on the active rotor include at least two pairs of N and S magnetic poles arranged in an interlaced manner.

Preferably, the N and S magnetic poles on the driving rotor and the driven rotor are evenly and alternately distributed along the circumferential direction.

Preferably, the arrangement logarithm of the magnets on the multi-stage magnetic module is consistent with the arrangement logarithm of the magnets on the driving rotor.

Preferably, the power part and the power generation part are arranged independently of each other, and the power part is opposite to the power generation part.

Preferably, the driving rotor, stator, and driven rotor are arranged parallel to each other and coaxially.

Preferably, the driving rotor is opposite to the driven rotor, and the stator is located between the driving rotor and the driven rotor.

Preferably, the power part further includes a rotating shaft and an impeller, and the driving rotor and the impeller are coaxially fixed on the rotating shaft.

Preferably, the power generation part includes a casing, the main shaft is fixed in the casing, the stator is fixed on the main shaft, and the rotor is arranged on the main shaft through bearings.

Preferably, a choke plate is further provided on the main shaft, and the choke plate is arranged outside the driven rotor for restricting the axial movement of the driven rotor.

Preferably, the coil is connected to the grid.

The utility model also provides an instant water faucet for hydropower generation, including an instant water faucet and a generator, the generator adopts the above-mentioned ironless induction generator; the instant water faucet and the ironless The induction generators are all arranged on a water pipe, and the water flow in the water pipe flows through the impeller of the ironless induction generator and the instant faucet, and the coil of the ironless induction generator communicates with the The power cord of the instant water faucet is connected.

Compared with the prior art, the utility model has the following advantages and positive effects due to the adoption of the above technical scheme:

1) In the coreless induction generator provided by the utility model, the driving rotor and the driven rotor are provided with multi-stage magnetized magnets or a plurality of magnetic interlaced magnet groups, and the number of magnetic pole pairs on the driven rotor is more than The number of magnetic pole pairs on the driving rotor, this arrangement makes a gear effect between the driving rotor and the driven rotor, making the speed of the driven rotor faster than the speed of the driving rotor, thus greatly improving the rotor used for cutting coils. The speed improves the power generation efficiency, making the engine suitable for weak power sources, which greatly expands the scope of use;

2) In the ironless induction generator provided by the utility model, the power part is separated from the power generation part. When it is used in hydroelectric power generation, only the power part needs to be in contact with the water, and the power generation part can be completely separated from the water, thereby effectively preventing Prevent the main components of the generator (such as coils, etc.) from rusting and corrosion, thereby prolonging the service life of the generator;

3) In the ironless induction generator provided by the utility model, the stator is arranged between the driving rotor and the driven rotor. On the one hand, the overall structure of the generator is made more compact, and the axial size of the generator is shortened, so that The generator is thinner and has a wider range of use; on the other hand, the stator is arranged between the driving rotor and the driven rotor. When the driving rotor drives the driven rotor to rotate, not only the magnetic field lines generated by the driven rotor cut the coil to generate electricity, but also The magnetic lines of force generated by the active rotor are also cutting the coil to generate electricity, thus greatly improving the power generation efficiency of the generator.

Description of drawings

In conjunction with the accompanying drawings, the above and other features and advantages of the present utility model can be more clearly understood through the detailed description below, wherein:

Fig. 1 is the schematic diagram of the principle of the coreless induction generator provided by the utility model;

Fig. 2 is a structural schematic diagram 1 of the active rotor of the present invention;

Fig. 3 is a structural schematic diagram II of the active rotor of the present invention;

Fig. 4 is a structural schematic diagram 1 of the driven rotor of the present invention;

Fig. 5 is the structure schematic diagram II of the driven rotor of the utility model

Fig. 6 is a structural schematic diagram III of the driven rotor of the present invention;

Fig. 7 is a schematic diagram of a water power instant heating faucet.

Symbol Description:

1-Power part 2-Power generation part 3-Instant hot faucet

101-Active rotor 102-Impeller 103-Rotating shaft

201-housing 202-driven rotor 203-stator

204-spindle 205-choke plate 206-central rod

1011-Magnet 2021-Multipole Magnetic Module.

Detailed ways

Referring to the accompanying drawings showing embodiments of the invention, the invention will be described in more detail below. However, this invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are presented so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. In these drawings, the size and relative sizes of layers and regions may be exaggerated for clarity.

Referring to Figures 1-6, the utility model provides a coreless induction generator, which is mainly composed of a power part 1 and a power generation part 2 arranged oppositely. The generator provided by the utility model is suitable for power generation in hydraulic power, wind power and other occasions , has the advantages of small size, compact structure, high power generation efficiency, light application, energy saving and environmental protection.

Specifically, the power part 1 includes a rotating shaft 103, a driving rotor 101 and an impeller 102, the driving rotor 101 is fixedly arranged on one end of the rotating shaft 103, the impeller 102 is fixedly arranged on the other end of the rotating shaft 103, and the rotating shaft 103, the driving rotor 101 and the The impeller 102 is arranged coaxially; an external force source (such as wind force, water force, etc.) pushes the impeller 103 to rotate, and the impeller rotates to drive the active rotor 101 to rotate.

As shown in FIGS. 2-3 , the active rotor 101 is provided with multi-stage magnetized magnets or multiple magnetically interlaced magnet groups. In this embodiment, at least two pairs of N and S magnetic poles are arranged on the active rotor 101, that is, two N magnetic poles and two S magnetic poles are included; four magnetic poles are arranged around the circumferential direction of the active rotor 101, and the N magnetic poles and the S magnetic poles Staggered distribution; wherein, the active rotor 101 can be directly composed of several magnets arranged along the circumferential direction, that is, the active rotor is a multi-pole magnetized magnet, as shown in Figure 2; the active rotor 101 can also be a plurality of magnetically staggered The magnet group is composed of a number of magnets 1011 and a plate, and a number of N pole magnets and S pole magnets are arranged at intervals and embedded on the plate or set on one side of the plate through a connecting structure (such as glue, etc.), as shown in Figure 3 As shown in ; the specific structural form of the active rotor 101 can be designed according to the specific situation, which is not limited here. Of course, the active rotor 101 can also be provided with three pairs of magnetic poles arranged in staggered polarities, or four pairs, five pairs... of magnetic poles arranged in staggered polarities. limit.

In this embodiment, the power generation part 2 includes a housing 201, a stator 203, a driven rotor 202 and a main shaft 204. One end of the housing 201 is open, and a disc-shaped chamber is arranged inside. The stator 203, the driven rotor 202 and the main shaft 204 are all set in the chamber. The main shaft 204 is fixedly arranged in the housing, and the main shaft 204 can be integrally formed with the housing 21, as shown in FIG. The stator 203 is coaxially arranged, and the stator 203 and the driven rotor 202 are parallel to each other; the stator 203 is fixedly connected with the main shaft 204, and the stator 203 is arranged on a side away from the opening of the casing. The driven rotor 202 is connected to the main shaft through a bearing 207, so that the driven rotor 202 can rotate freely around the main shaft 204; specifically, a through hole is arranged at the center of the main shaft 204, and a center rod 206 is arranged in the through hole, and a center rod 206 of the center rod 206 The outer wall is connected to the inner wall of the through hole through the bearing 207, so that the central rod 206 rotates relative to the main shaft 204; a choke plate 205 is also arranged in the housing 201, and the center of the choke plate 205 is fixedly connected with one end of the central rod 206, and the choke plate The lower side of 205 is fixedly connected with the driven rotor 202, and the driven rotor 202 is connected with the main shaft 204 through the choke plate 205, the central rod 206 and the bearing 207; the choke plate is used to limit the axial movement of the driven rotor to prevent from The moving rotor flies out during rotation. Certainly, the connection manner of the stator 203 , the driven rotor 202 , the choke plate 205 and the main shaft 204 is not limited to the above-mentioned, and this is only an embodiment, which can be adjusted according to specific conditions.

The stator 203 is in the shape of a disk, and there are several coils arranged therein, and the coils are connected with an outgoing wire; several coils can be arranged around the circumferential direction of the stator 203, of course, the number and arrangement of the coils can be adjusted according to specific conditions. There are no restrictions.

Referring to Figures 4-6, the driven rotor 202 is provided with multi-stage magnetized magnets or a plurality of magnetically interlaced magnet groups; in this embodiment, the number of magnetic pole pairs of the driven rotor 202 is more than that of the driving rotor Number, at least three pairs of N and S magnetic poles are arranged on the driven rotor 202, that is, at least three N and three S magnetic poles are included; three pairs of N and S magnetic poles are arranged around the circumferential direction of the active rotor, and the N pole magnet and the S pole magnet Set at intervals, as shown in Figure 4; wherein, the driven rotor 202 can be directly composed of several magnets arranged along the circumferential direction, that is, the driven rotor 202 is a multi-pole magnetized magnet, and the driven rotor 202 can also be A plurality of magnetically staggered magnet groups; four or five pairs of N and S magnetic poles arranged in staggered polarity can be set on the driven rotor 202, and the number of pairs of magnetic poles and the setting method of the driven rotor 202 can be set according to specific conditions Design, no limitation here. In the utility model, the number of magnetic pole pairs of the driven rotor 202 is more than that of the driving rotor 101, so that a gear effect occurs between the driving rotor 101 and the driven rotor 202, so that the speed of the driven rotor 202 is faster than that of the driving rotor 204. The rotating speed greatly increases the rotating speed of the rotor used to cut the coils and improves the power generation efficiency, making the engine suitable for weak power sources and greatly widening the scope of use.

Of course, the distribution of magnetic poles on the driven rotor 202 is also limited to that shown in Figure 4, and the specific arrangement of the driven rotor 202 is not limited here; as shown in Figure 5, the driven rotor 202 can be provided with several multi-poles Magnetic module 2021, several multi-pole magnetic modules 2021 are evenly arranged along the circumferential direction of the driven rotor 202; preferably, at least four multi-pole magnetic modules 2021 are arranged on the driven rotor 202, of course, six multi-pole magnetic modules can also be provided 2021, as shown in FIG. 6; the number and arrangement of the multi-pole magnetic modules 2021 can be adjusted according to specific conditions, and are not limited here. Wherein, each multi-pole magnetic module 2021 is provided with several pairs of magnetic poles arranged in staggered polarities; There are two N magnetic poles and two S magnetic poles; four magnetic poles are arranged around the circumferential direction of the multi-pole magnetic module 2021, and the N magnetic poles and S magnetic poles are arranged alternately; of course, the multi-pole magnetic module 2021 can also be provided with three or four pairs... For the N and S magnetic poles arranged alternately, the number of pairs of magnetic poles can be designed according to specific conditions, which is not limited here. Wherein, the multi-pole magnetic module 2021 can be a multi-stage magnetized magnet or a plurality of magnetically interlaced magnet groups, and the specific structure of the multi-pole magnetic module 2021 can be designed according to specific conditions, which is not limited here.

In this embodiment, the power part 1 and the power generation part 2 are two mutually independent structures, and when the generator is fixedly installed, the power part 1 is arranged opposite to the generator part 2, and the power part 1 is provided with one end of the active rotor 101 It is opposite to the power generation part 2. In order to ensure the compactness of the overall structure of the generator and the efficiency of the generator, the shaft 103 of the power part 1 and the center line of the main shaft 204 of the power generation part 2 are on the same straight line, and the driving rotor 101, the stator 203 and the driven rotor 202 are parallel to each other. . In the generator provided by the utility model, the power part 1 is separated from the power generation part 2. When applied to hydroelectric power generation, only the power part 1 is in contact with the water, and the power generation part 2 can be completely separated from the water, thereby effectively preventing the power generation part from Various internal components (such as coils, etc.) are rusted and corroded, thereby prolonging the service life of the generator.

In this embodiment, one end of the power generation part 2 provided with the stator 203 is opposite to the power part 1, that is, the stator 203 is located between the driving rotor 101 and the driven rotor 202; the utility model arranges the stator 203 between the driving rotor 101 and the driven rotor 202 Between the rotors 202, on the one hand, the overall structure of the generator is made more compact. Compared with the prior art, the stator is not arranged in the gap between the driving rotor and the driven rotor, but is arranged on the side of the driven rotor away from the driving rotor. The design scheme, the utility model shortens the size of the generator in the axial direction, makes the generator thinner as a whole, and has a wider application range; on the other hand, the utility model sets the stator 203 between the driving rotor 101 and the driven rotor 202 In the meantime, when the driving rotor 101 drives the driven rotor 202 to rotate, not only the magnetic force lines generated by the driven rotor 202 cut the coils to generate electricity, but also the magnetic force lines generated by the active rotor 101 also cut the coils to generate electricity, thereby greatly improving the power generation efficiency of the generator .

The coreless induction generator provided by the utility model has a working principle as follows:

Power sources such as hydraulic power and wind power drive the impeller 102 in the power part 1 to rotate, and the rotation of the impeller 102 drives the driving rotor 101 to rotate through the rotating shaft 103; the magnets in the driving rotor 101 and the driven rotor 202 are all axially magnetized, and the driven rotor 202 Inducing the magnetic field lines of the driving rotor 101 , the driving rotor 101 rotates, thereby driving the driven rotor 202 to rotate. The driven rotor 202 rotates, so that the magnetic field lines of the driven rotor 202 cut the coil in the stator 203, and the coil generates an induced current, so that the coil generates electric energy, and the coil outputs the generated electric energy for use through the lead wire, thereby completing the power generation process.

Wherein, both the driving rotor 204 and the driven rotor 202 are provided with multi-stage magnetized magnets or a plurality of magnetically interlaced magnet groups, and the number of magnetic pole pairs on the driven rotor 202 is more than the number of magnetic pole pairs on the driving rotor 101, so that A gear effect is generated between the driving rotor 204 and the driven rotor 202, so that the rotating speed of the driven rotor 202 is faster than that of the driving rotor 101; For rotors with the same number of magnets, the utility model greatly improves the rotating speed of the rotor used for cutting coils, and is especially suitable for weak power sources, such as water flow with small flow rate and slow flow rate, which can still ensure power generation The normal power generation of the machine greatly improves the power generation efficiency and broadens the scope of use.

The utility model provides an iron-free induction generator, which has a wide application range, and can be either a pipeline type or an open type; the pipeline type, the impeller 102 of the power part 1 can be installed in a water pipe or on a faucet or a rainwater pipe for use in Power generation, the electric energy that produces can be used for heating water flow, reduces the electricity consumption of water heater; purpose, but if the AC power is pulled in the past, the transformation cost is high, time-consuming and labor-intensive. If the utility model is used instead, it saves time and effort, and can also be used during power failures, and the generator has high efficiency, long life, and low failure rate. Open type, the utility model can use small streams to generate power, and can also be used in portable power generation devices to provide convenience for vehicles to obtain electricity in the field, reduce emissions, and protect the environment. Take the utility model applied to the instant hot water faucet in the prior art as an example to further illustrate below:

Referring to Fig. 7, the hot water faucet 3 and the ironless induction generator are used in combination to form a hydropower instant heating faucet. The specific instant hot water faucet 3 and the ironless induction generator are both arranged on the water pipe, and the water The water flow in the pipe flows through the impeller 102 of the ironless induction generator, and then flows out after being heated by the instant hot water faucet 3; wherein, the lead wire of the ironless induction generator is connected with the power line of the instant hot water faucet 3, and the water flow drives the impeller 102 The rotation makes the generator generate electric energy, and the generated electric energy is transmitted to the instant hot water faucet 3 through the outgoing wire for heating the water flowing through the instant hot water faucet. The instant water faucet for hydropower generation has the advantages of compact structure, small size and firmness, high power generation efficiency, convenient installation, long service life, wide application, energy saving and environmental protection, and the like.

To sum up, the utility model provides a coreless induction generator, including: a power part, including an active rotor, and the active rotor is provided with multi-stage magnetized magnets or a plurality of magnetic interlaced magnet groups; part, including the main shaft and the driven rotor and stator coaxially arranged with the main shaft; the stator is provided with coils, the driven rotor is provided with multi-stage magnetized magnets or a plurality of magnetic interlaced magnet groups, and the magnetic poles on the driven rotor The number of pole pairs is more than the number of pole pairs on the driving rotor. The power part and the power generation part are independent and opposite to each other. The stator is located between the driving rotor and the driven rotor. The driving rotor rotates to drive the driven rotor to rotate. The magnetic field of the driven rotor cuts the coil on the stator, and the coil generates an induced current. The utility model has the advantages of compactness, compactness, high power generation efficiency, long service life, wide application, energy saving and environmental protection. The utility model also provides a hydropower instant heating faucet adopting the generator, which greatly saves electric energy.

Those skilled in the art should understand that the utility model can be implemented in many other specific forms without departing from the spirit or scope of the utility model. Although the embodiments of the present invention have been described, it should be understood that the present invention should not be limited to these embodiments, and those skilled in the art can make changes and changes within the spirit and scope of the present invention as defined by the appended claims. Revise.

Claims (11)

1. A coreless induction generator, characterized in that the coreless induction generator comprises: The power part includes a driving rotor, and the driving rotor is provided with multi-stage magnetized magnets or a plurality of magnetically interlaced magnet groups; The power generation part includes a driven rotor, a stator and a main shaft, the stator and the driven rotor are arranged coaxially with the main shaft, and the driven rotor can rotate around the main shaft; coils are arranged on the stator, and the The driven rotor is provided with multi-stage magnetized magnets or multiple magnetically interlaced magnet groups, and the number of magnetic pole pairs on the driven rotor is greater than that on the driving rotor; The driving rotor rotates to drive the driven rotor to rotate, the magnetic field of the driven rotor cuts the coil on the stator, and the coil generates an induced current. 2. The ironless induction generator according to claim 1, characterized in that, the multi-stage magnetized magnets or a plurality of magnetically interlaced magnet groups arranged on the active rotor include at least two pairs of interleaved magnets. N, S magnetic poles. 3. The coreless induction generator according to claim 1, characterized in that, the N and S magnetic poles on the driving rotor and the driven rotor are uniformly and interlacedly distributed along the circumferential direction. 4. The coreless induction generator according to claim 1, wherein the power part and the power generation part are arranged independently of each other, and the power part is opposite to the power generation part. 5. The coreless induction generator according to claim 1, wherein the driving rotor, stator, and driven rotor are arranged parallel to each other and coaxially. 6. The ironless induction generator according to claim 1, wherein the driving rotor is opposite to the driven rotor, and the stator is located between the driving rotor and the driven rotor . 7 . The ironless induction generator according to claim 1 , wherein the power part further comprises a rotating shaft and an impeller, and the active rotor and the impeller are coaxially fixed on the rotating shaft. 8. The ironless induction generator according to claim 1, wherein the power generation part comprises a housing, the main shaft is fixed in the housing, and the stator is fixed on the main shaft, The rotor is arranged on the main shaft through bearings. 9. The ironless induction generator according to claim 1, characterized in that, a choke plate is also arranged on the main shaft, and the choke plate is arranged outside the driven rotor to limit the Axial movement of the driven rotor. 10. The iron-less induction generator according to claim 1, wherein the coil is connected to the power grid. 11. An instant water faucet for hydropower generation, characterized in that it comprises an instant water faucet and a generator, and the generator adopts the ironless induction generator described in any one of claims 1-9; the Both the instant faucet and the ironless induction generator are arranged on a water pipe, and the water in the water pipe flows through the impeller of the ironless induction generator and the instant faucet, and the ironless induction generator The coil is connected with the power line of the instant faucet through an outgoing wire.