阅读说明：本技术 一种自调节式小型风力发电机 (Self-adjusting small wind driven generator ) 是由 陈文增 于 2021-01-25 设计创作，主要内容包括：本发明公开了一种自调节式小型风力发电机,包括空心的外壳,所述外壳通过轴承贯穿转动连接有主轴,所述外壳侧壁开设有若干换气孔,所述主轴位于外壳内的一端连接有发电机,所述主轴位于外壳外部的一端过盈配合有扇叶,所述主轴内镶嵌有两个永磁体,所述外壳内开设有两个安装腔,所述安装腔内设置有发电减速装置,所述外壳内设置有两组主动散热装置。优点在于：本发明中的风力发电机可以在转速过快时,相应的增大主轴转动时的阻力,降低转速,且在调节后仍过快时,可以主动进行摩擦减速,有效控制主轴转速,保护发电机,且同时可以提高外壳内的换气速率,达到更好的散热效果,给予发电机更好的工作环境。(The invention discloses a self-adjusting small wind driven generator which comprises a hollow shell, wherein the shell is connected with a main shaft in a penetrating and rotating mode through a bearing, the side wall of the shell is provided with a plurality of ventilation holes, one end, located in the shell, of the main shaft is connected with a generator, one end, located outside the shell, of the main shaft is in interference fit with fan blades, two permanent magnets are embedded in the main shaft, two installation cavities are formed in the shell, a power generation speed reduction device is arranged in each installation cavity, and two groups of active heat dissipation devices are arranged in the shell. Has the advantages that: the wind driven generator can correspondingly increase the resistance of the main shaft in rotation when the rotating speed is too high, reduce the rotating speed, and actively carry out friction speed reduction when the rotating speed is still too high after adjustment, thereby effectively controlling the rotating speed of the main shaft, protecting the generator, improving the ventilation rate in the shell, achieving better heat dissipation effect and providing better working environment for the generator.)

1. The utility model provides a small-size aerogenerator of self-interacting formula, includes hollow shell (1), its characterized in that, shell (1) runs through the bearing and rotates and is connected with main shaft (2), a plurality of scavenge ports (22) have been seted up to shell (1) lateral wall, main shaft (2) are located the one end of shell (1) and are connected with generator (3), main shaft (2) are located the outside one end interference fit of shell (1) and have flabellum (4), it has two permanent magnets (5) to inlay in main shaft (2), seted up two installation cavity (6) in shell (1), be provided with the electricity generation decelerator in installation cavity (6), be provided with two sets of initiative heat abstractor in shell (1).

2. The self-adjusting small wind driven generator according to claim 1, characterized in that the power generation speed reducer comprises a magnetic column (7) slidably sleeved in the installation cavity (6), a connecting spring (8) is fixedly connected between the magnetic column (7) and the inner wall of the corresponding installation cavity (6), a spiral coil (9) is arranged on the inner side wall of the installation cavity (6), and two groups of active speed reducers are arranged in the housing (1).

3. The self-adjusting small wind driven generator according to claim 2, characterized in that the active speed reduction device comprises a speed reduction electromagnet (12) and a diode (10) which are arranged in a housing (1), the speed reduction electromagnet (12), the diode (10) and a solenoid (9) are connected in series through a lead, a speed reduction groove (11) is formed in the housing (1), a speed reduction disc (13) is sleeved in the speed reduction groove (11) in a sliding manner, a plurality of return springs (14) are fixedly connected between the speed reduction disc (13) and the inner wall of the speed reduction groove (11), and two magnetic blocks (15) are glued on the upper surface of the speed reduction disc (13).

4. The self-adjusting small wind driven generator according to claim 2, characterized in that the active heat dissipation device comprises a ventilation cavity (17), an air inlet hole (20) and a first exhaust hole (21) which are arranged in the housing (1), the air inlet hole (20) is communicated with the ventilation cavity (17) and the outside, the first exhaust hole (21) is communicated with the ventilation cavity (17) and the inside of the housing (1), a ventilation electromagnet (18) is glued on the inner side wall of the ventilation cavity (17), the ventilation electromagnet (18) is connected with the solenoid coil (9) in series through a lead, and a magnetic plate (19) is sleeved in the ventilation cavity (17) in a sealing and sliding manner.

5. The self-adjusting small wind driven generator according to claim 2, characterized in that two second exhaust holes (23) and heat dissipation holes (24) are formed in the housing (1), the heat dissipation holes (24) are communicated with the corresponding deceleration groove (11) and the outside, and the second exhaust holes (23) are communicated with the corresponding air exchange cavity (17) and deceleration groove (11).

6. The self-adjusting small wind driven generator according to claim 4, wherein the speed reduction disk (13) is provided with a plurality of vent holes (16), and the air inlet hole (20), the first exhaust hole (21) and the second exhaust hole (23) are all provided with one-way valves.

Technical Field

The invention relates to the technical field of wind power generation equipment, in particular to a self-adjusting small wind driven generator.

Background

With the continuous development of science and technology and society, more and more electric appliances and tools appear in our lives, and meanwhile, production activities are gradually increased, so that energy consumption is rapidly increased, the earth is gradually confronted with an energy crisis, non-renewable energy sources such as coal, petroleum and the like in the earth are always limited, and in order to face the energy crisis, people are also gradually using renewable energy sources in nature, such as wind energy, geothermal energy, tidal energy, solar energy and the like, wherein the utilization of the wind energy needs a wind driven generator to be completed.

In the prior art, the existing wind driven generator cannot perform rotation speed self adjustment, when wind power is too large, the rotation speed is increased, the generator is in a high rotation speed for a long time, the generator is in a high load state for a long time, the service life of the generator is shortened, even the generator is directly damaged, economic loss is caused, the heat dissipation effect of the existing wind driven generator is poor, the service life of the generator is shortened due to high temperature, and therefore a self-adjusting type small wind driven generator is provided.

Disclosure of Invention

The invention aims to solve the problems that the rotating speed cannot be self-adjusted and the heat dissipation effect is poor in the prior art, and provides a self-adjusting type small wind driven generator.

In order to achieve the purpose, the invention adopts the following technical scheme: the utility model provides a small-size aerogenerator of self-interacting formula, includes hollow shell, the shell runs through the rotation through the bearing and is connected with the main shaft, a plurality of scavenge holes have been seted up to the shell lateral wall, the one end that the main shaft is located the shell is connected with the generator, the one end interference fit that the main shaft is located the shell outside has the flabellum, it has two permanent magnets to inlay in the main shaft, two installation chambeies have been seted up in the shell, be provided with the electricity generation decelerator in the installation chambeies, be provided with two sets of initiative heat abstract.

In the self-adjusting small wind driven generator, the power generation speed reduction device comprises a magnetic column which is sleeved in the installation cavity in a sliding mode, a connecting spring is fixedly connected between the magnetic column and the corresponding inner wall of the installation cavity, a spiral coil is arranged on the inner wall of the installation cavity, and two groups of active speed reduction devices are arranged in the shell.

In foretell small-size aerogenerator of self-interacting formula, initiative decelerator is including setting up deceleration electromagnet and diode in the shell, deceleration electromagnet, diode, solenoid pass through the wire and establish ties, set up the deceleration tank in the shell, the deceleration tank sliding sleeve has the speed reduction dish, a plurality of reset springs of fixedly connected with between speed reduction dish and the deceleration tank inner wall, the glue of speed reduction dish upper surface has two magnetic blocks.

In the self-adjusting small wind driven generator, the active heat dissipation device comprises a ventilation cavity, an air inlet and a first exhaust hole, the ventilation cavity, the air inlet and the first exhaust hole are formed in the shell, the air inlet is communicated with the outside, the first exhaust hole is communicated with the ventilation cavity and the inside of the shell, the inner side wall of the ventilation cavity is glued with a ventilation electromagnet, the ventilation electromagnet is connected with the solenoid coil in series through a lead, and a magnetic plate is sleeved in the ventilation cavity in a sealing sliding manner.

In the self-adjusting small wind driven generator, two second exhaust holes and heat dissipation holes are formed in the shell, the heat dissipation holes are communicated with the corresponding deceleration grooves and the outside, and the second exhaust holes are communicated with the corresponding air exchange cavity and the corresponding deceleration grooves.

In the self-adjusting small wind driven generator, the speed reduction disc is provided with a plurality of air vents, and the air inlet hole, the first exhaust hole and the second exhaust hole are all provided with one-way valves.

Compared with the prior art, the invention has the advantages that:

1. the fan blade is rotated by wind power, the fan blade drives the main shaft to rotate, the generator generates electricity, the permanent magnet rotates along with the fan blade in the rotation process of the main shaft, the magnetic column slides into the solenoid under the action of magnetic repulsion force in the process of rotating until the permanent magnet is opposite to the magnetic column, an induced magnetic field is generated in the solenoid to prevent the permanent magnet from entering the solenoid, the resistance counteracts on the permanent magnet, even if the main shaft rotates by a certain resistance, when the rotating speed of the main shaft is higher, the counterforce of the main shaft is higher, and when the main shaft rotates slightly in an overspeed manner, the resistance is generated to reduce the rotating speed;

2. in the rotation process of the main shaft, if the rotation resistance of an induction magnetic field generated by the solenoid coil to the main shaft is not enough to enable the rotation speed of the main shaft to be in a normal value, the main shaft still rotates at a high speed, at the moment, the speed of the magnetic column sliding into the solenoid coil is high, so that the speed reduction electromagnet generates enough magnetic repulsion to enable the speed reduction disc to be in contact with the main shaft, the rotation speed of the main shaft is reduced through friction force, the rotation speed of the main shaft is effectively regulated and controlled, the phenomenon that the service life of a generator is shortened or even damaged due to the;

3. in the rotation process of the main shaft, the magnetic column continuously slides into and out of the falling coil, so that alternating current is generated in the spiral coil, the ventilation electromagnet generates a periodically changed magnetic field, the periodically changed magnetic field enables the magnetic plate to reciprocate, outside air is sucked into the ventilation cavity through the air inlet and is discharged into the shell through the first air outlet, original air in the shell is discharged out of the shell, the air flowing rate in the shell is increased, the better heat dissipation effect is achieved, and the faster the rotating speed is, the shorter the alternating period is, namely the faster the ventilation rate is;

4. when taking a breath, go into the deceleration tank with partly air through the second exhaust hole pump in, the air vent is seted up to the speed reduction dish simultaneously for the heat that the friction produced is arranged to the deceleration tank through the air vent, and is together arranged to the external world along with the air of pump income, and the effectual heat of having avoided the friction to produce makes the main shaft damage, better protection the main shaft when slowing down.

Drawings

Fig. 1 is a schematic structural diagram of a self-adjusting small wind power generator according to the present invention;

FIG. 2 is an enlarged view taken at A in FIG. 1;

FIG. 3 is an enlarged view of FIG. 1 at B;

FIG. 4 is a cross-sectional view taken at C-C of FIG. 1;

fig. 5 is a schematic circuit connection diagram of a self-adjusting small wind power generator according to the present invention.

In the figure: the generator comprises a shell 1, a main shaft 2, a generator 3, fan blades 4, permanent magnets 5, a mounting cavity 6, a magnetic column 7, a connecting spring 8, a spiral coil 9, a diode 10, a deceleration groove 11, a deceleration electromagnet 12, a deceleration disk 13, a reset spring 14, a magnetic block 15, a vent hole 16, a ventilation cavity 17, a ventilation electromagnet 18, a magnetic plate 19, an air inlet hole 20, a first exhaust hole 21, a ventilation hole 22, a second exhaust hole 23 and a heat dissipation hole 24.

Detailed Description

The following examples are for illustrative purposes only and are not intended to limit the scope of the present invention.

Examples

Referring to fig. 1-5, a self-adjusting small wind driven generator comprises a hollow shell 1, the shell 1 is rotatably connected with a main shaft 2 through a bearing in a penetrating manner, a plurality of ventilation holes 22 are formed in the side wall of the shell 1, one end of the main shaft 2, which is positioned in the shell 1, is connected with a generator 3, one end of the main shaft 2, which is positioned outside the shell 1, is in interference fit with a fan blade 4, two permanent magnets 5 are embedded in the main shaft 2, the two permanent magnets 5 are symmetrically arranged, two mounting cavities 6 are formed in the shell 1, a power generation speed reduction device is arranged in each mounting cavity 6, two groups of active heat dissipation devices are arranged in the shell 1, and the two groups of active heat dissipation devices are symmetrically arranged, so that in the rotating process of the main shaft 2, the component forces in the vertical direction of.

The power generation speed reduction device comprises a magnetic column 7 which is sleeved in the installation cavity 6 in a sliding mode, a connecting spring 8 is fixedly connected between the magnetic column 7 and the inner wall of the corresponding installation cavity 6, a spiral coil 9 is arranged on the inner side wall of the installation cavity 6, and two groups of active speed reduction devices are arranged in the shell 1.

The active speed reducer comprises a speed reducing electromagnet 12 and a diode 10 which are arranged in a shell 1, the speed reducing electromagnet 12, the diode 10 and a spiral coil 9 are connected in series through a lead, a speed reducing groove 11 is formed in the shell 1, a speed reducing disc 13 is sleeved in the speed reducing groove 11 in a sliding mode, a plurality of reset springs 14 are fixedly connected between the speed reducing disc 13 and the inner wall of the speed reducing groove 11, two magnetic blocks 15 are glued on the upper surface of the speed reducing disc 13, alternating induced current generated in the spiral coil 9 can only pass through the speed reducing electromagnet 12 in a single direction through the diode 10, the speed reducing electromagnet 12 only generates magnetism in one direction, and magnetic repulsion force which can be always borne by the speed reducing disc.

The active heat dissipation device comprises a ventilation cavity 17, an air inlet hole 20 and a first exhaust hole 21, wherein the air inlet hole 20 is communicated with the ventilation cavity 17 and the outside, the first exhaust hole 21 is communicated with the ventilation cavity 17 and the inside of the shell 1, the inner side wall of the ventilation cavity 17 is glued with a ventilation electromagnet 18, the ventilation electromagnet 18 is connected with a solenoid coil 9 in series through a lead, as shown in fig. 5, a deceleration electromagnet 12, a diode 10 and the solenoid coil 9 are connected in series through leads, the ventilation electromagnet 18 is connected with the deceleration electromagnet 12 and the diode 10 in parallel through leads, alternating current generated in the solenoid coil 9 enables a magnetic plate 19 to reciprocate, external air is continuously pumped into the shell 1, the ventilation efficiency in the shell 1 is improved, a better heat dissipation effect is achieved, and the magnetic plate 19 is hermetically and slidably sleeved in the ventilation cavity 17.

Two second exhaust holes 23 have been seted up in shell 1, louvre 24, the corresponding gear box 11 and the external world of louvre 24 intercommunication, second exhaust hole 23 intercommunication corresponding chamber 17 and gear box 11 of taking a breath, when taking a breath, go into gear box 11 with some air through second exhaust hole 23 pump, air vent 16 is seted up to speed reduction disc 13 simultaneously, make the heat that the friction produced arrange to gear box 11 through air vent 16, and together arrange to the external world along with the air of pump income, the effectual heat that has avoided the friction to produce makes main shaft 2 damage, better protection when the speed reduction main shaft 2.

The speed reducing disc 13 is provided with a plurality of vent holes 16, the air inlet hole 20, the first exhaust hole 21 and the second exhaust hole 23 are all provided with one-way valves, the one-way valve in the air inlet hole 20 only allows air to enter the ventilation cavity 17 from the outside, the one-way valve in the first exhaust hole 21 only allows air to enter the shell 1 from the ventilation cavity 17, and the one-way valve in the second exhaust hole 23 only allows air to enter the speed reducing groove 11 from the ventilation cavity 17.

In the invention, the fan blade 4 is rotated by wind power, the main shaft 2 is driven by the fan blade 4 to rotate and generate electricity through the generator 3, the permanent magnet 5 is rotated along with the main shaft 2 in the rotating process, when the permanent magnet 5 rotates to be opposite to the magnetic column 2, the magnetic column 2 slides into the solenoid 9 under the action of the magnetic repulsion force of the permanent magnet 5, an induced magnetic field is generated in the solenoid 9 to prevent the induced magnetic field from entering the solenoid 9, the resistance force acts on the permanent magnet 5 through the magnetic repulsion force of the magnetic column 2 to the permanent magnet 5, the horizontal component force of the resistance force causes the main shaft 2 to rotate with a certain resistance force, namely, the spindle 2 is subjected to certain resistance to rotate, when the rotating speed of the spindle 2 is higher, the magnetic column 2 slides into the solenoid coil 9 at a higher speed, the strength of the generated induction magnetic field is higher, namely, the larger the counterforce borne by the permanent magnet 5 is, the resistance is generated to reduce the rotating speed of the main shaft when the main shaft rotates slightly at an overspeed;

in the rotation process of the main shaft 2, under the matching of the magnetic column 2 and the connecting spring 8, the magnetic column 2 continuously slides in and out of the solenoid coil 9, so that alternating induction current is generated in the solenoid coil 9, the alternating induction current is supplied to the ventilation electromagnet 18, the ventilation electromagnet 18 generates a periodically alternating magnetic field, the magnetic plate 19 reciprocates under the action of the alternating magnetic field, when the magnetic plate 19 moves towards the ventilation electromagnet 18, outside air is sucked into the ventilation cavity 17 through the air inlet hole 20, when the magnetic plate 19 moves towards the direction far away from the ventilation electromagnet 18, the sucked air is pressed into the shell 1 through the first air outlet hole 17, so that the original air in the shell 1 is discharged to the outside through the ventilation hole 22, the air flow rate in the shell 1 is improved, and a better heat dissipation effect is achieved;

if the rotation resistance of the induction magnetic field generated by the solenoid coil 9 to the main shaft 2 is not enough to enable the rotation speed of the main shaft 2 to be in a normal value, and the main shaft 2 still rotates at a high speed, at this time, the speed of the magnetic column 2 sliding into the solenoid coil 9 is high, so that the decelerating electromagnet 12 generates enough magnetic repulsion, the magnetic repulsion of the decelerating electromagnet 12 to the magnetic block 15 acts on the decelerating disc 13, so that the decelerating disc 13 overcomes the elastic force of the return spring 14 to slide downwards, so that the decelerating disc 13 contacts with the main shaft 2, the rotation speed of the main shaft 2 is reduced through the friction force, at the same time, the magnetic block 15 slides downwards to not block the second air vent 23 and the heat dissipation hole 24, at this time, along with the reciprocating motion of the magnetic plate 19, a part of the sucked air is pumped into the decelerating groove 11 through the second air vent 23, at this time, the heat generated by the friction between the decelerating disc 13 and the main shaft 2 is discharged into the decelerating, the accumulation of heat at the friction position of the speed reducing disc 13 and the main shaft 2 is avoided, the main shaft 2 is protected, meanwhile, the rotating speed of the main shaft 2 is effectively regulated and controlled, the long-time high rotating speed is avoided, the service life of the generator 3 is shortened, even the generator is damaged, and the economic loss is avoided.

Although the terms of the housing 1, the main shaft 2, the generator 3, the fan blades 4, the permanent magnet 5, the mounting cavity 6, the magnetic column 7, the connecting spring 8, the solenoid coil 9, the diode 10, the decelerating slot 11, the decelerating electromagnet 12, the decelerating disk 13, the return spring 14, the magnetic block 15, the vent hole 16, the ventilating cavity 17, the ventilating electromagnet 18, the magnetic plate 19, the air inlet hole 20, the first air outlet hole 21, the ventilating hole 22, the second air outlet hole 23, the heat dissipation hole 24, etc. are used more herein, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed as being without limitation to any additional limitations that may be imposed by the spirit of the present invention.