CN218454792U - Hydraulic power generator - Google Patents

Abstract

The utility model discloses a hydroelectric generation device, which comprises a power mechanism, an eccentric disc and a generator; the power mechanism comprises a rotating support and a plurality of impellers which are rotatably arranged on the rotating support, the rotating support is in transmission connection with the generator, the plurality of impellers are arranged around the peripheral side of the rotating support at intervals, and each impeller shaft is provided with a sliding block; the eccentric discs are eccentrically arranged relative to the rotating center of the rotating bracket, a plurality of sliding blocks are arranged around the eccentric discs, the sliding block on at least one impeller is in contact with the outer edge of the eccentric disc to limit the rotation of the impeller, and the sliding blocks on the rest impellers are spaced from the outer edge of the eccentric discs to enable the rest impellers to rotate. The utility model discloses the main technical problem who solves provides a hydroelectric generation device that power conversion efficiency is high.

Description

Hydraulic power generating device

Technical Field

The utility model relates to a power generation facility technical field especially relates to a hydroelectric generation device.

Background

The number of large and small rivers in China is too large, and countless illuminating lamps, landscape lamps and other power utilization facilities are arranged on the rivers and on both banks, and a large amount of electric energy can be consumed by the power utilization facilities; moreover, a large amount of engineering materials are consumed for equipping the power supply lines for the power utilization facilities, and the power supply lines sometimes have power failure and personnel electric shock casualty accidents caused by wind and rain antenna circuit faults and even electric leakage, so that the economic cost is huge.

In order to reduce the power supply cost along the bank of the river, a solar photovoltaic power generation system is installed, but a river side lamp is not needed to illuminate when sunlight exists, and a battery energy storage device is needed when the river side lamp is needed to illuminate when the sunlight does not exist, so that the equipment weight and the investment cost are increased virtually, and the environment is even polluted. A vertical-axis water-wheel power generation system is also provided, the vertical-axis water-wheel hydroelectric generator is simple in structure and convenient to install and maintain, and certain resistance always exists in the reversely rotating blades of the vertical-axis water-wheel hydroelectric generator, so that the power conversion efficiency of the conventional vertical-axis water-wheel cannot be improved.

SUMMERY OF THE UTILITY MODEL

Therefore, the utility model discloses the main technical problem who solves provides a hydroelectric generation device that power conversion efficiency is high.

In order to achieve the above object, the embodiment of the present invention provides a technical solution that:

a hydroelectric power generation device comprises a power mechanism, an eccentric disc and a generator; the power mechanism comprises a rotating support and a plurality of impellers which are rotatably arranged on the rotating support, the rotating support is in transmission connection with the generator, the plurality of impellers are arranged around the periphery of the rotating support at intervals, and each impeller is provided with a sliding block; the eccentric discs are eccentrically arranged relative to the rotating center of the rotating bracket, a plurality of sliding blocks are arranged around the eccentric discs, the sliding block on at least one impeller is in contact with the outer edge of the eccentric disc to limit the rotation of the impeller, and the sliding blocks on the rest impellers are spaced from the outer edge of the eccentric discs to enable the rest impellers to rotate.

As a possible embodiment of the present application, a side surface of the slider includes a pair of flat surfaces and a pair of arc surfaces that are disposed opposite to each other, a distance between the flat surfaces and a rotation axis of the impeller is smaller than a distance between the arc surfaces and the rotation axis of the impeller, the impeller includes a blade, and an extension direction of the blade is perpendicular to the flat surfaces; the plane of the slide block contacts with the outer edge of the eccentric disc to limit the rotation of the impeller.

As a possible embodiment of the present application, two ends of the slider are provided with 2 rollers; on one side of the eccentric disc, the slide block of the impeller is in contact with the eccentric disc through 2 rollers.

As a possible embodiment of the present application, the generator includes a housing, a motor shaft, a fixed armature, and a rotor, the motor shaft is fixed in position and connected with the fixed armature, the housing is rotationally engaged with the motor shaft, and the rotor is connected to an inner side of the housing and arranged around the fixed armature; the rotating bracket is connected with the machine shell and rotates around the motor shaft together with the machine shell.

As a possible embodiment of the present application, a floating platform for floating the hydroelectric power generation device on the water surface is further included, the eccentric disc is connected to the bottom of the floating platform, and the motor shaft is fixed in position by being fixedly connected with the floating platform and/or the eccentric disc.

As a possible embodiment of the present application, the floating platform includes a floating plate and a float connected to an end of the floating plate, the float having a density less than a density of water, and the eccentric disc is connected to the floating plate and located between the floating plate and the generator.

As a possible embodiment of the present application, the casing includes a waterproof casing and a waterproof end cover covering the waterproof casing, the motor shaft is matched with the shaft hole of the waterproof end cover, and the rotor is fixed on the inner wall surface of the waterproof casing; the generator further comprises an upper bearing and a lower bearing, the motor shaft is in running fit with the waterproof end cover through the upper bearing, and the motor shaft is in running fit with the waterproof shell through the lower bearing.

As a possible implementation manner of the present application, the rotating bracket includes an upper supporting plate and a lower supporting plate fixedly connected to the casing, the upper supporting plate and the lower supporting plate are parallel to each other and are disposed at an interval, the impeller includes a rotating shaft, an axial direction of the rotating shaft is parallel to an axial direction of the motor shaft, and opposite ends of the rotating shaft are respectively rotatably connected to the upper supporting plate and the lower supporting plate.

As a possible implementation manner of the present application, the power generation system further includes an energy storage device disposed on the shore and an inverter electrically connected to the energy storage device, wherein a lead of the generator is electrically connected to the energy storage device, and the inverter is configured to convert the direct current of the energy storage device into an alternating current to supply to the electric equipment.

As a possible implementation manner of the present application, the hydraulic power generation device further comprises a floating platform for floating on the water surface and a fixed shaft sleeve connected with the floating platform, the generator is disposed on the upper side of the floating platform, the fixed shaft sleeve is disposed on the lower side of the floating platform and is coaxially disposed with the generator, and the rotating bracket is in rotating fit with the fixed shaft sleeve and rotates around the fixed shaft sleeve.

As a possible embodiment of the present application, a motor shaft of the generator vertically passes downward through the floating platform, the eccentric disc and the fixed shaft sleeve, and the rotating bracket is fixedly connected with an end of the motor shaft.

As a possible implementation manner of the present application, the rotating bracket includes a rotating shaft sleeve, an upper supporting plate and a lower supporting plate, the upper supporting plate and the lower supporting plate are parallel to each other and are arranged at an interval, two opposite ends of the rotating shaft sleeve are respectively connected to the upper supporting plate and the lower supporting plate, and the rotating shaft sleeve is sleeved outside the fixed shaft sleeve and is in running fit with the fixed shaft sleeve.

In the above technical scheme of this application, because hydroelectric generation device includes power unit, eccentric disc and generator, be provided with the slider on power unit's the impeller, the slider can cooperate with the eccentric disc to make power unit's different sides demonstrate different impeller rotation state. On one side of the eccentric disc, the impeller is in sliding fit with the eccentric disc through a sliding block, so that the impeller cannot rotate freely to bear larger water resistance; and on the other side of the eccentric disc, the sliding block and the eccentric disc are spaced, so that the impeller can rotate freely to be parallel to the water flow direction, the resistance is minimized, the rotating support can rotate quickly under the resistance difference to drive the generator to generate electricity, and the power conversion efficiency of the power mechanism is improved.

Drawings

FIG. 1 is a plan view of a hydro-power generation device according to an embodiment of the present disclosure;

FIG. 2 is a cross-sectional view of a hydro-power generation device according to an embodiment of the present disclosure;

FIG. 3 is a partial schematic view of FIG. 2;

FIG. 4 is a top view of a hydro-power generation device according to an embodiment of the present disclosure;

FIG. 5 is a schematic view of the power mechanism and the eccentric disc in an embodiment of the present application;

FIG. 6 is a top view of an impeller according to an embodiment of the present application;

FIG. 7 is a top view of another aspect of an impeller according to an embodiment of the present application;

FIG. 8 is a schematic view of a lamp portion according to an embodiment of the present application;

FIG. 9 is a schematic diagram of the circuit principle in an embodiment of the present application;

FIG. 10 is a plan view of another embodiment of a hydro-power generation device of the present application;

FIG. 11 is a cross-sectional view of a hydro-power generation device according to another embodiment of the present disclosure;

FIG. 12 is a top view of another embodiment of a hydro-power generation device according to the present application.

The reference numbers illustrate:

100-power mechanism, 110-rotating bracket, 111-upper support plate, 112-lower support plate, 113-rotating shaft sleeve, 120-impeller, 121-rotating shaft, 122-blade, 123-sliding block, 1231-plane, 1232-cambered surface and 1233-roller;

200-eccentric disc, 300-generator, 310-machine shell, 311-waterproof shell, 312-waterproof end cover, 320-motor shaft, 331-central through hole, 330-fixed armature, 340-rotor, 351-upper bearing, 352-lower bearing, 400-floating platform, 410-floating plate, 420-floater, 430-motor shaft seat, 500-lamp, 510-lamp shade, 520-bulb, 530-driving circuit lamp socket and 600-fixed shaft sleeve.

Detailed Description

The technical solution of the present invention is further elaborated below by referring to the drawings and the specific embodiments of the specification. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. In the following description, reference is made to the expression "some embodiments" which describes a subset of all possible embodiments, but it should be understood that "some embodiments" may be the same subset or different subsets of all possible embodiments, and may be combined with each other without conflict.

It will also be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. As used herein, the terms "vertical," "horizontal," "inner," "outer," "left," "right," and the like are for purposes of illustration only and do not denote a single embodiment.

Referring to fig. 1 to 5, an embodiment of the present application provides a hydraulic power generation device, which can be used in a hydraulic power generation scenario.

The hydroelectric power generation device comprises a power mechanism 100, an eccentric disc 200 and a generator 300; the power mechanism 100 comprises a rotating bracket 110 and a plurality of impellers 120 rotatably arranged on the rotating bracket 110, the rotating bracket 110 is coaxially arranged with the generator 300 and is in transmission connection with the generator 300, and the rotating bracket 110 can drive the generator 300 to generate electricity when rotating; the impellers 120 are arranged around the periphery of the rotating bracket 110 at intervals, and push the rotating bracket 110 to rotate under the action of water pressure; the eccentric disc 200 is eccentrically disposed with respect to the rotating bracket 110, a sliding block 123 is disposed at an end of the impeller 120 axially close to the eccentric disc 200, a plurality of sliding blocks 123 are disposed around the eccentric disc 200, and the sliding blocks 123 are configured to cooperate with the eccentric disc 200, so that the impellers 120 on different sides of the power mechanism 100 exhibit different rotation states. The slider 123 of at least one of the impellers 120 contacts the outer edge of the eccentric disc 200 to limit the rotation of the impeller 120, and the sliders of the remaining impellers 120 are spaced from the outer edge of the eccentric disc 200 to allow the remaining impellers 120 to rotate.

Specifically, with continued reference to FIGS. 4 and 5, the eccentric disc 200 has a proximal point (i.e., the position where its outer circular surface is closest to the center) at the left side of the figure and a distal point (i.e., the position where its outer circular surface is farthest from the center) at the right side of the figure. The slider 123 is located radially outward of the eccentric disc 200, and an inner side surface of the slider 123 faces an outer edge of the eccentric disc 200. On one side (mainly the outer side of the right half in the figure) of the eccentric disc 200, the edge of the eccentric disc 200 abuts against the sliding block 123, so that the impeller 120 is in sliding fit with the eccentric disc 200 through the sliding block 123, and in this state, the sliding block 123 is blocked from rotating relative to the outer side surface of the eccentric disc 200, so that the impeller 120 can maintain a radial radiation state with the eccentric disc 200, and the whole power mechanism 100 is driven to rotate under the action of water flow or air flow. Meanwhile, on the other side (mainly the outer side of the left half side in the figure) of the eccentric disc 200, the edge of the eccentric disc 200 is spaced from the sliding block 123, the sliding block 123 is in clearance fit with the eccentric disc 200, and the impeller 120 can freely rotate along the hydraulic power to be consistent with the direction of the air flow or the water flow, so that the rotation resistance of the reverse flow direction of the left half part of the whole power mechanism 100 is greatly reduced, and the power mechanism 100 can have higher output efficiency.

Because the impeller 120 is subjected to a large water resistance when the impeller 120 is not rotatable (the impeller 120 is in a fixed radial radiation state relative to the center of the rotating bracket 110, so that the fluid thrust is maximized), and the impeller 120 is subjected to a small water resistance when the impeller 120 is freely rotatable (the impeller 120 is freely rotatable relative to the rotating bracket 110 to a state parallel to the water flow direction or the air flow direction, so that the resistance is minimized), the rotating bracket 110 rotates under the resistance difference to drive the generator 300 to generate electricity, and the power conversion efficiency is improved.

In the above technical solution of the present application, since the hydroelectric power generating apparatus includes the power mechanism 100, the eccentric disc 200 and the generator 300, the sliding block 123 is disposed on the impeller 120 of the power mechanism 100, and the sliding block 123 can cooperate with the eccentric disc 200 to enable different sides of the power mechanism 100 to present different rotation states of the impeller 120. On one side of the eccentric disc 200, the impeller 120 is in sliding fit with the eccentric disc 200 through the sliding block 123, so that the impeller 120 is radial and can not freely rotate and bear large water resistance; on the other side of the eccentric disc 200, the sliding block 123 is spaced from the eccentric disc 200, so that the impeller 120 can rotate freely to be parallel to the water flow direction or the air flow direction, and the resistance is minimized, and thus the rotating bracket 110 can rotate with a larger resistance difference and drive the generator 300 to generate electricity, thereby improving the power conversion efficiency of the power mechanism 100.

Referring to fig. 6, as an alternative embodiment of the present application, a side surface of the slider 123 includes a pair of flat surfaces 1231 and a pair of arc surfaces 1232, which are oppositely disposed, a distance between the flat surface 1231 and an axis of the impeller 120 is smaller than a distance between the arc surfaces 1232 and the axis of the impeller 120, the impeller 120 includes the blades 122, and an extending direction of the blades 122 is perpendicular to the flat surface 1231. In the embodiment shown in the drawings, the slider 123 is formed by vertically cutting two blocks from a circular disc, the cut surfaces form a pair of planes 1231, and the uncut portions form a pair of curved surfaces 1232. Because the distance between the plane 1231 and the axis of the impeller 120 is less than the distance between the arc surface 1232 and the axis of the impeller 120, when the edge of the eccentric disc 200 is close to the impeller 120, the sliding block 123 can only slide through the contact between the plane 1231 and the edge of the eccentric disc 200, so as to achieve the purpose of preventing the impeller 120 from rotating. Meanwhile, the blades 122 of the impeller 120 are designed to extend in a direction perpendicular to the plane 1231, so that the blades 122 face the radial direction of the rotating bracket 110, and the plurality of impellers 120 sliding-fitted to the eccentric disc 200 are radially radial with respect to the motor shaft 320, and thus the maximum water resistance is exerted.

Referring to fig. 7, as another alternative embodiment of the present application, the sliding block 123 is rectangular, and two ends of the sliding block 123 are provided with 2 rollers 1233; when the edge of the eccentric disc 200 is close to the impeller 120 at one side of the eccentric disc 200, the slider 123 of the impeller 120 is in contact with the eccentric disc 200 through 2 rollers 1233. The slider 123 can only contact with the eccentric disc 200 by one side of 2 rollers 1233, thereby achieving the purpose of making the impeller 120 non-rotatable. In this embodiment, the slider 123 still slides with respect to the eccentric disc 200 as a whole, but the frictional force between the slider 123 and the eccentric disc 200 becomes the rolling frictional force, and the frictional resistance is smaller. On the other side of the eccentric disc 200, when the edge of the eccentric disc 200 is far from the center of the rotation shaft of the impeller 120 and is greater than a half of the farthest outer circle distance of the two rollers, the impeller 120 can rotate freely to be parallel to the water flow direction or the air flow direction.

Referring to fig. 3, as an embodiment of the present invention, the generator 300 includes a housing 310, a motor shaft 320, a fixed armature 330 (preferably 8-32 slots), and a rotor 340 (preferably 12-36 poles), wherein the rotor 340 is a permanent magnetic outer rotor, the motor shaft 320 is fixed in position and connected to the fixed armature 330, the housing 310 is rotatably engaged with the motor shaft 320, and the rotor 340 is connected to the inner side of the housing 310 and disposed around the fixed armature 330; the rotating bracket 110 is coupled to the housing 310 and rotates around the motor shaft 320 together with the housing 310. Because the motor shaft 320 and the fixed armature 330 are fixed, when the rotating bracket 110 drives the housing 310 and the rotor 340 to rotate relative to the motor shaft 320 and the fixed armature 330, the fixed armature 330 cuts the magnetic lines of force of the rotating rotor 340 to generate induced electricity, so as to generate electricity. The power generated by the generator 300 can be used for electric equipment arranged on the hydroelectric power generation device, and can also be transmitted to the shore through a pull line to supply power for landscape lighting or other electric appliances on the shore.

Referring to fig. 1 to 4, when the hydroelectric power generating apparatus is used for generating electricity in water, the hydroelectric power generating apparatus further includes a floating platform 400 for floating the hydroelectric power generating apparatus on the water surface, the eccentric disc 200 is connected to the bottom of the floating platform 400, and the motor shaft 320 is fixed in position by being fixedly connected to the floating platform 400 and/or the eccentric disc 200. The floating platform 400 or the eccentric disc 200 is provided with a motor shaft seat 430 engaged with the motor shaft 320. The rotating bracket 110 may be made of carbon fiber, glass fiber reinforced plastic, or plastic material, and the plurality of impellers 120 may be freely rotated and relatively fixed by the guide of the eccentric disc 200, so that the half-side impeller 120 rotating along the water flow direction is fixed in posture and bears a large water flow impulse force, and the half-side impeller 120 rotating against the water flow direction is freely rotated and parallel to the water flow direction under the action of the water flow, thereby bearing the minimum water flow resistance, i.e., the resistance in the anti-rotation direction is minimum, and the power conversion efficiency of the power mechanism 100 is improved.

When the hydroelectric generating device is used, the power mechanism 100 is positioned under the water surface, the generator 300 is positioned in the rotating bracket 110 of the power mechanism 100, the whole hydroelectric generating device does not affect the landscape on the water surface, and ornaments such as lamps 500 and the like serving as the landscape can be placed on the upper part of the water surface to beautify the urban and rural river channels. Specifically, referring to fig. 8 and 9, the hydraulic power generating device further includes a lamp 500, one end of the motor shaft 320 is connected to the fixed armature 330, the other end is connected to the lamp 500, a central through hole 331 extending along the axial direction is disposed in the motor shaft 320, and a lead of the generator 300 passes through the central through hole 331 to be electrically connected to the lamp 500, so as to supply power to the lamp 500. Further, the lamp 500 includes a lamp cover 510, a bulb 520, and a driving circuit socket 530, the motor shaft 320 is disposed in a vertical direction, the driving circuit socket 530 is connected to a top end of the motor shaft 320, the bulb 520 is disposed on the driving circuit socket 530 and electrically connected to the conductive wires through the driving circuit socket 530, and the lamp cover 510 is covered on the bulb 520. The power generated by the generator 300 is transmitted to the lamp socket 530 of the driving circuit through the hollow motor shaft 320 by a wire, the lamp 520 is lighted by the current-limiting rectification of the driving circuit, and the lampshade 510 plays a role in beauty and protection of the landscape lamp.

Further, the hydroelectric power generating apparatus may further include an energy storage device disposed on the shore and an inverter electrically connected to the energy storage device, wherein the lead of the generator 300 is electrically connected to the energy storage device, and the inverter is configured to convert the dc power of the energy storage device into ac power to supply to the electric equipment. The power generated by the generator 300 is also transmitted to the energy storage device on the shore through another wire branch, and is converted into alternating current through the inverter electrically connected with the energy storage device, so that the alternating current is used for power consumption of electrical equipment on the shore, such as lighting equipment, refrigerators, electric cookers, charging devices, televisions, stereos and the like.

In this embodiment, the generator 300 is disposed in water, which is very convenient for heat dissipation of the motor and the electric appliance, so that the whole system can be small and low-priced. After the hydroelectric generation device is placed in a river, the hydroelectric generation device can be fixed on the shore by a reinforced waterproof cable, the landscape lamp 500 floats on water by the floating platform 400, the power mechanism 100 and the generator 300 are submerged under water, the system can generate electricity as long as the river water has a certain flow rate (0.5-10 m/s), the reinforced waterproof cable can transmit frequent electric power to the shore in addition to lighting the landscape lamp 500, and the power can be supplied to shore electric appliances through rectification, voltage stabilization and inversion circuits, for example, an electric vehicle and a mobile phone are charged, and an electric cooker, an electromagnetic cooker, a television, a computer and a sound system are powered, so that convenience and pleasure of outing are improved. The generator 300 may be a multi-pole permanent magnet generator 300, the high-efficiency power mechanism 100 is equipped with the multi-pole permanent magnet generator 300, and the voltage stabilization control unit, so that the high voltage stabilization effect and the high electric energy conversion efficiency can be provided, and great convenience and feasibility for power utilization are provided for users.

As one possible embodiment of the present application, the floating platform 400 includes a floating plate 410 and a float 420 connected to an end of the floating plate 410, and the eccentric disc 200 is connected to the floating plate 410 and located between the floating plate 410 and the generator 300. In the embodiment shown in the drawings, the floating platform 400 includes two floating plates 410 and a pair of floats 420 provided at opposite ends of the two floating plates 410, and the floats 420 may be of a hollow structure or made of a material having a density less than the density of water and being strong to provide a main buoyancy. The eccentric disc 200 is fixedly coupled to the floating plate 410, and the motor shaft 320 is fixedly coupled to the eccentric disc 200.

Preferably, in order to adapt to underwater work, the casing 310 includes a waterproof casing 311 and a waterproof end cap 312 covering the waterproof casing 311, and a sealing ring may be disposed between the waterproof casing 311 and the waterproof end cap 312. The motor shaft 320 is fitted in the shaft hole of the waterproof end cap 312, and the rotor 340 is fixed to the inner wall surface of the waterproof case 311. In addition, the generator 300 further includes an upper bearing 351 and a lower bearing 352, the motor shaft 320 is rotatably engaged with the waterproof cover 312 through the upper bearing 351, the motor shaft 320 is also rotatably engaged with the waterproof housing 311 through the lower bearing 352, the waterproof housing 311 and the waterproof cover 312 rotate relative to the motor shaft 320, the rotor 340 rotates relative to the fixed armature 330, and the fixed armature 330 cuts magnetic lines of force of the rotating rotor 340 to generate induced electricity, so as to generate electricity. Further, the rotating bracket 110 includes an upper supporting plate 111 and a lower supporting plate 112 fixedly connected to the housing 310, the upper supporting plate 111 and the lower supporting plate 112 are parallel to each other and spaced apart from each other, shaft holes are uniformly distributed in corresponding positions on the upper supporting plate 111 and the lower supporting plate 112 in an annular manner, and oil-free bearing sleeves are installed in the shaft holes; the impeller 120 includes a rotating shaft 121 and blades 122, the axial direction of the rotating shaft 121 is parallel to the axial direction of the motor shaft 320, and opposite ends of the rotating shaft 121 rotatably connect the shaft holes of the upper support plate 111 and the lower support plate 112, respectively. The device is convenient to travel and carry, convenient to install and maintain, capable of utilizing river running water to generate electricity, capable of charging loads such as lithium batteries and household appliances, fully utilizing natural clean energy, energy-saving and environment-friendly, and capable of solving the problem of power utilization difficulty in remote areas.

Referring to fig. 10 to 12, in another embodiment of the present application, the hydroelectric power generating apparatus also includes a power mechanism 100, an eccentric disc 200, a generator 300, and a floating platform 400. The power mechanism 100 includes a rotating bracket 110 and a plurality of impellers 120 rotatably disposed on the rotating bracket 110, the rotating bracket 110 is in transmission connection with the generator 300, and the generator 300 can be driven to generate power when the rotating bracket 110 rotates. Similarly, the plurality of impellers 120 are arranged around the periphery of the rotating bracket 110 at intervals, and the rotating bracket 110 is pushed to rotate under the action of external water pressure; the eccentric disc 200 is eccentrically disposed with respect to the rotating bracket 110, a sliding block 123 is disposed at an end of the impeller 120 axially close to the eccentric disc 200, a plurality of sliding blocks 123 are disposed around the eccentric disc 200, and the sliding blocks 123 are configured to cooperate with the eccentric disc 200, so that the impellers 120 on different sides of the power mechanism 100 exhibit different rotation states. The slider 123 of at least one of the impellers 120 contacts the outer edge of the eccentric disc 200 to limit the rotation of the impeller 120, and the sliders of the remaining impellers 120 are spaced from the outer edge of the eccentric disc 200 to allow the remaining impellers 120 to rotate. The difference is that the generator 300 is disposed on the upper side of the floating platform 400, and further includes a fixed shaft sleeve 600 disposed on the lower side of the floating platform 400 and coaxially disposed with the generator 300, and the rotating bracket 110 is rotatably engaged with the fixed shaft sleeve 600 and rotates around the fixed shaft sleeve 600. The rotating bracket 110 rotates under the resistance difference to drive the generator 300 to generate electricity (the principle is the same, and the explanation is omitted), so that the conversion efficiency of power is improved. This embodiment is applied to a hydraulic power generation device in which the waterproof performance of the generator 300 is general, and the generator 300 may not be placed in water in order to prevent the generator 300 from malfunctioning.

Further, in this embodiment, the rotor in the generator 300 is an inner rotor, the motor shaft 320 of the generator 300 vertically passes downward through the floating platform 400, the eccentric disc 200 and the fixed bushing 600, and the rotating bracket 110 is fixedly connected with the end of the motor shaft 320. The rotating bracket 110 drives the motor shaft 320 to rotate together to cut the magnetic induction lines to generate electricity during rotation.

Further, the rotating bracket may include a rotating sleeve 113, an upper support plate 111 and a lower support plate 112, the upper support plate 111 and the lower support plate 112 are parallel to each other and spaced apart from each other, and shaft holes are uniformly distributed in corresponding positions on the upper support plate 111 and the lower support plate 112 in an annular manner, and oil-free bearing sleeves are installed in the shaft holes. The opposite ends of the rotating shaft sleeve 113 are respectively connected to the upper support plate 111 and the lower support plate 112, and the rotating shaft sleeve 113 is sleeved outside the fixed shaft sleeve 600 and is rotatably matched with the fixed shaft sleeve 600. A bearing may be disposed between the rotating sleeve 113 and the fixed sleeve 600 to reduce friction.

The above embodiments are only specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of changes or substitutions within the technical scope of the present invention, and all should be covered within the scope of the present invention. The protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (12)

1. A hydroelectric power generation device is characterized by comprising a power mechanism, an eccentric disc and a generator; the power mechanism comprises a rotating bracket and a plurality of impellers which are rotatably arranged on the rotating bracket, the rotating bracket is in transmission connection with the generator, the plurality of impellers are arranged around the peripheral side of the rotating bracket at intervals, and each impeller is provided with a sliding block; the eccentric discs are eccentrically arranged relative to the rotating center of the rotating bracket, the plurality of sliding blocks are arranged around the eccentric discs, at least one of the sliding blocks on the impeller is in contact with the eccentric discs to limit the rotation of the impeller relative to the rotating bracket, and the sliding blocks on the other impellers are spaced from the eccentric discs to enable the other impellers to rotate relative to the rotating bracket.

2. The hydroelectric power generation device of claim 1, wherein the side surface of the sliding block comprises a pair of flat surfaces and a pair of arc surfaces which are oppositely arranged, the distance between the flat surfaces and the rotation axis of the impeller is smaller than the distance between the arc surfaces and the rotation axis of the impeller, the impeller comprises blades, and the extension direction of the blades is perpendicular to the flat surfaces; the plane of the sliding block contacts with the outer edge of the eccentric disc to limit the rotation of the impeller.

3. The hydro-power generation device of claim 1, wherein 2 rollers are provided at both ends of the slider; on one side of the eccentric disc, the slide block of the impeller is in contact with the eccentric disc through 2 rollers.

4. The hydro-power generation device of claim 1, wherein the generator comprises a housing, a motor shaft, a stationary armature, and a rotor, the motor shaft coupled to the stationary armature, the housing rotationally engaged with the motor shaft, the rotor coupled to an inner side of the housing and disposed around the stationary armature; the rotating bracket is connected with the machine shell and can rotate around the motor shaft together with the machine shell.

5. The hydro-power generation device of claim 4, further comprising a floating platform for floating the hydro-power generation device on the water surface, wherein the eccentric disc is attached to the bottom of the floating platform, and wherein the motor shaft is fixed in position by being fixedly attached to the floating platform and/or the eccentric disc.

6. The hydroelectric power generation apparatus of claim 5, wherein the float table comprises a float plate and a float attached to an end of the float plate, wherein the float has a density less than water density, and wherein the eccentric disc is attached to the float plate and is positioned between the float plate and the generator.

7. The hydroelectric power generation apparatus of claim 4, wherein the casing comprises a waterproof housing and a waterproof end cap covering the waterproof housing, the motor shaft is engaged with the shaft hole of the waterproof end cap, and the rotor is fixed on the inner wall surface of the waterproof housing; the generator further comprises an upper bearing and a lower bearing, the motor shaft is in running fit with the waterproof end cover through the upper bearing, and the motor shaft is in running fit with the waterproof shell through the lower bearing.

8. The hydroelectric power generating device of any one of claims 4 to 7, wherein the rotary support comprises an upper support plate and a lower support plate fixedly connected to the casing, the upper support plate and the lower support plate are parallel to each other and spaced apart from each other, the impeller comprises a rotating shaft, an axial direction of the rotating shaft is parallel to an axial direction of the motor shaft, and opposite ends of the rotating shaft are respectively rotatably connected to the upper support plate and the lower support plate.

9. The hydroelectric power generation apparatus of any one of claims 1 to 7, further comprising an energy storage device disposed on shore and an inverter electrically connected to the energy storage device, wherein the leads of the generator are electrically connected to the energy storage device, and wherein the inverter is configured to convert the dc power of the energy storage device into ac power for supplying to a power consumer.

10. The hydro-power generation device according to claim 1, further comprising a floating platform for floating the hydro-power generation device on the water surface, and a fixed shaft sleeve connected to the floating platform, wherein the generator is disposed on an upper side of the floating platform, the fixed shaft sleeve is disposed on a lower side of the floating platform and is coaxially disposed with the generator, and the rotary bracket is rotatably engaged with the fixed shaft sleeve and rotates around the fixed shaft sleeve.

11. The hydro-power generation device of claim 10, wherein a motor shaft of the generator extends vertically downward through the floating platform, the eccentric disc and the fixed bushing, and the rotating bracket is fixedly connected to an end of the motor shaft.

12. The hydro-power generation device of claim 11, wherein the rotating bracket comprises a rotating sleeve, an upper support plate and a lower support plate, the upper support plate and the lower support plate are parallel to each other and are spaced apart from each other, opposite ends of the rotating sleeve are respectively connected with the upper support plate and the lower support plate, and the rotating sleeve is sleeved outside the fixed sleeve and is in rotating fit with the fixed sleeve.

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