CN210977742U

CN210977742U - Wave power generation device

Info

Publication number: CN210977742U
Application number: CN201921608940.3U
Authority: CN
Inventors: 谭亦旻; 张祖光; 乔栋
Original assignee: SHENZHEN YANGNENG TECHNOLOGY CO LTD
Current assignee: SHENZHEN YANGNENG TECHNOLOGY CO LTD
Priority date: 2019-09-25
Filing date: 2019-09-25
Publication date: 2020-07-10
Anticipated expiration: 2029-09-25

Abstract

The application discloses wave power generation device, including having the installation cavity and following the main body cover that vertical direction set up, slidable mounting in the floating member of the outside of main body cover, locate the interior permanent magnet axle of installation cavity, the transmission main shaft that links to each other with the floating member to and link to each other with the transmission main shaft and the cover locates at least one coil pack of permanent magnet axle outside. The floating piece can move up and down relative to the main body shell under the driving of waves, the transmission main shaft connected with the floating piece moves up and down along with the floating piece, the transmission main shaft drives the coil assembly to move up and down, and the coil assembly is sleeved outside the permanent magnet shaft, so that power generation can be realized when the transmission main shaft drives the coil assembly to move up and down. Because the floating part directly drives the coil assembly to complete branch line movement through the transmission main shaft, the power generation requirement of the linear generator is met, and the power generation efficiency is further improved. By adopting the Halbach magnetic matrix, the flux density of the magnetic field in the air gap can be improved, so that the power generation efficiency is further improved.

Description

Wave power generation device

Technical Field

The application relates to the field of ocean new energy, especially, relate to a wave power generation device.

Background

The existing marine generator is mainly a rotating electrical machine, and a transmission mechanism is required to be arranged to convert marine energy into a transmission mechanism meeting the power generation requirement of the rotating electrical machine during power generation of the rotating electrical machine, so that the efficiency of energy conversion is reduced, and the volume of the wave power generation device is large.

SUMMERY OF THE UTILITY MODEL

An object of the application is to provide a wave power generation device, aim at solving prior art, the problem that wave power generation device generating efficiency is low.

To achieve the purpose, the following technical scheme is adopted in the application:

wave power generation device, including have the installation cavity and along main body cover, the slidable mounting that vertical direction set up in main body cover's outside floating member, locate permanent magnet axle in the installation cavity, with the transmission main shaft that the floating member links to each other, and with the transmission main shaft links to each other and the cover is located at least one coil pack of permanent magnet axle outside.

Further, the axis of the drive spindle is collinear with the axis of the main body housing.

Furthermore, a connecting frame is arranged between the transmission main shaft and the floating part; the transmission main shaft is connected with the floating part through the connecting frame.

Further, the connecting frame comprises a plurality of connecting rods arranged around the transmission main shaft; one end of the connecting rod is connected with the transmission main shaft, and the other end of the connecting rod is connected with the floating piece.

Further, the permanent magnet shaft is a Halbach array magnetic shaft.

Further, the number of the coil assemblies is more than three; the ratio of the number of coils in the coil assembly to the number of poles of the permanent magnet shaft is 3: 2.

Furthermore, a guide groove is formed in the floating piece, and a guide protrusion located in the guide groove is arranged on the main body shell.

Furthermore, a Teflon sliding sleeve is arranged in the guide groove.

Furthermore, an upper sealing cover and a lower sealing cover are respectively arranged at two ends of the main body shell; the upper sealing cover is provided with a linear bearing, and the transmission main shaft is slidably arranged on the linear bearing.

Furthermore, a double-Y-shaped sealing ring is arranged between the transmission main shaft and the linear bearing.

The beneficial effect of this application: the whole vertical placement of wave power generation facility, also main body cover distributes along vertical direction, the floating piece can slide along vertical direction relative main body cover, consequently when the floating piece was arranged in the surface in, the floating piece can be relative main body cover up-and-down motion under the drive of wave, the transmission main shaft that links to each other with the floating piece is along with the floating piece up-and-down motion, the transmission main shaft drives coil pack up-and-down motion, because the outside of permanent magnet axle is located to the coil pack cover, consequently can realize the electricity generation when the transmission main shaft drives coil pack up-and-down motion. Because the floating part directly drives the coil assembly to complete branch line movement through the transmission main shaft, the power generation requirement of the linear generator is met, and compared with a power generation mode in the prior art in which energy transmission is realized through transmission parts such as gears, the power generation efficiency is improved.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

FIG. 1 is a schematic structural view of a wave power unit according to an embodiment of the present application;

FIG. 2 is a partial view of the wave power unit of FIG. 1;

in the figure:

1. a main body housing; 101. a mounting cavity; 102. a guide projection; 2. a float member; 201. a guide groove; 202. a Teflon sliding sleeve; 3. a permanent magnet shaft; 4. a transmission main shaft; 5. a coil assembly; 6. a connecting frame; 601. a connecting rod; 7. an upper closure cap; 8. a lower closure cap; 9. a linear bearing; 10. double Y-shaped sealing rings.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, refer to an orientation or positional relationship illustrated in the drawings for convenience in describing the present application and to simplify description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present application.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

The following detailed description of implementations of the present application is provided in conjunction with specific embodiments.

As shown in fig. 1-2, an embodiment of the present application provides a wave power generation device, which includes a main body housing 1 having a mounting cavity 101 and disposed along a vertical direction, a floating member 2 slidably mounted outside the main body housing 1, a permanent magnet shaft 3 disposed in the mounting cavity 101, a transmission spindle 4 connected to the floating member 2, and at least one coil assembly 5 connected to the transmission spindle 4 and sleeved outside the permanent magnet shaft 3.

In the embodiment of the application, wave power generation device's electricity generation process does, wave power generation device is whole vertical to be placed, also main body cover 1 distributes along vertical direction, floating piece 2 can slide along vertical direction for main body cover 1, consequently when floating piece 2 arranges the surface of water in, floating piece 2 can be relative main body cover 1 up-and-down motion under the drive of wave, transmission main shaft 4 along with floating piece 2 up-and-down motion that links to each other with floating piece 2, transmission main shaft 4 drives coil pack 5 up-and-down motion, because coil pack 5 covers the outside of locating permanent magnet axle 3, consequently, can realize the electricity generation when transmission main shaft 4 drives coil pack 5 up-and-down motion. Because the floating part 2 directly drives the coil component 5 to complete branch line movement through the transmission main shaft 4, the power generation requirement of the linear generator is met, and compared with a power generation mode in which energy transmission is realized through transmission parts such as gears in the prior art, the power generation efficiency is improved.

Further, referring to fig. 1, as another embodiment of the wave power device provided by the present application, the axis of the transmission main shaft 4 is collinear with the axis of the main body housing 1. That is, the transmission main shaft 4 moves along the axial direction of the main body housing 1 when moving, and is located at the most central part of the main body housing 1, so that the radial resistance applied when the floating part 2 drives the transmission main shaft 4 to move and drives the coil assembly 5 to move is ensured to be smaller.

Further, referring to fig. 1, as another embodiment of the wave power generation apparatus provided by the present application, a connecting frame 6 is provided between the transmission main shaft 4 and the floating member 2; the transmission main shaft 4 is connected with the floating part 2 through a connecting frame 6. The floating part 2 can be circular, the floating part 2 is sleeved outside the main body shell 1, a connecting frame 6 is arranged between the floating part 2 and the transmission main shaft 4, the transmission main shaft 4 is still positioned on the axis of the main body shell 1 and moves along the axis when the transmission main shaft 4 is connected with the floating part 2, the floating part 2 can still move along the length direction of the main body shell 1, the transmission main shaft 4 or the floating part 2 does not need to be deflected to realize the connection of the transmission main shaft 4 and the floating part 2, and the radial friction force along the transmission main shaft 4, which is overcome when the floating part 2 drives the transmission main shaft 4 to move, is reduced.

Further, referring to fig. 1, as another embodiment of the wave power device provided by the present application, the connecting frame 6 includes a plurality of connecting rods 601 surrounding the transmission main shaft 4; one end of the connecting rod 601 is connected with the transmission main shaft 4, and the other end of the connecting rod 601 is connected with the floating piece 2. The connecting rod 601 may be inclined or bent to achieve the connection of the non-collinear drive shaft 4 to the float 2.

Further, referring to fig. 1, as another embodiment of the wave power generator provided by the present application, the permanent magnet shaft 3 is a halbach array magnetic shaft. The unilateral magnetic field distribution generated by the Halbach array magnet self-shielding effect does not need a slotted structure to provide a channel for the unilateral magnetic field distribution, so that a larger selection space is provided for selecting materials for the rotor, and the system has lower inertia and better quick response performance.

Further, referring to fig. 1, as another specific embodiment of the wave power generator provided by the present application, the number of coils in the coil assembly 5 is more than three (the coil assembly 5 may include a coil and a sleeve for mounting the coil); the ratio of the number of coil assemblies 5 to the number of magnetic poles of the permanent magnet shaft 3 is 3:2, that is, two magnetic poles (a pair of magnetic poles) correspond to three coil assemblies 5 (three coil assemblies 5 generate electromotive force phase difference of 120 degrees).

Further, referring to fig. 2, as another specific embodiment of the wave power generation device provided by the present application, a guide groove 201 is formed on the floating member 2, and a guide protrusion 102 located in the guide groove 201 is provided on the main body housing 1. The guide protrusion 102 is located in the guide groove 201, so that the floating member 2 does not rotate relative to the main body housing 1 when sliding along the main body housing 1, and only moves up and down in the vertical direction along the main body housing 1, thereby ensuring that only the transmission main shaft 4 is driven to do linear motion in the vertical direction.

Further, referring to fig. 2, as another specific embodiment of the wave power generation device provided by the present application, a teflon sliding sleeve 202 is disposed in the guiding groove 201, so as to realize self-lubrication with low friction coefficient in seawater.

Further, referring to fig. 1-2, as another embodiment of the wave power device provided by the present application, an upper sealing cover 7 and a lower sealing cover 8 are respectively disposed at two ends of the main body housing 1; the upper closing cover 7 is provided with a linear bearing 9, and the transmission main shaft 4 is arranged on the linear bearing 9 in a sliding way. The linear bearing 9 adopts a self-lubricating brass bearing, so that the sliding friction force is reduced while the stability of the transmission main shaft 4 in moving is ensured.

Further, referring to fig. 1-2, as another embodiment of the wave power device provided by the present application, a double Y-shaped sealing ring 10 is disposed between the transmission main shaft 4 and the linear bearing 9.

It is to be understood that aspects of the present invention may be practiced otherwise than as specifically described.

It should be understood that the above examples are merely examples for clearly illustrating the present application, and are not intended to limit the embodiments of the present application. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present application shall be included in the protection scope of the claims of the present application.

Claims

1. The wave power generation device is characterized by comprising a main body shell, a floating piece, a permanent magnet shaft, a transmission main shaft and at least one coil assembly, wherein the main body shell is provided with an installation cavity and is arranged along the vertical direction, the floating piece is arranged outside the main body shell in a sliding mode, the permanent magnet shaft is arranged in the installation cavity, the transmission main shaft is connected with the floating piece, and the transmission main shaft is connected with the transmission main shaft and sleeved outside the permanent magnet shaft.

2. A wave-power unit according to claim 1 characterized in that the axis of the drive shaft is collinear with the axis of the main housing.

3. A wave-power unit according to claim 1, characterized in that a connection frame is provided between the drive shaft and the float; the transmission main shaft is connected with the floating part through the connecting frame.

4. A wave-power unit according to claim 3 characterized in that the connection frame comprises a number of connection rods arranged around the transmission main shaft; one end of the connecting rod is connected with the transmission main shaft, and the other end of the connecting rod is connected with the floating piece.

5. A wave power unit according to any of claims 1-4, characterized in that the permanent magnet axes are Halbach array magnetic axes.

6. A wave-power unit according to claim 1 characterized in that the number of coils in the coil assembly is three or more; the ratio of the number of coil assemblies to the number of poles of the permanent magnet shaft is 3: 2.

7. A wave-power unit according to claim 1, characterized in that the floating member is provided with a guide groove, and the main housing is provided with a guide projection in the guide groove.

8. A wave-power unit according to claim 7, characterized in that a Teflon sliding sleeve is arranged in the guide groove.

9. The wave power unit of claim 1, wherein the main body housing is provided at both ends thereof with an upper closing cover and a lower closing cover, respectively; the upper sealing cover is provided with a linear bearing, and the transmission main shaft is slidably arranged on the linear bearing.

10. A wave-power unit according to claim 9, characterized in that a double Y-seal is provided between the drive shaft and the linear bearing.