阅读说明：本技术 一种直线发电装置 (Linear power generation device ) 是由 汪成哲 余磊 熊心怡 杜松 于 2018-06-29 设计创作，主要内容包括：本发明公开了一种直线发电装置,包括初级和次级,初级包括永磁阵列、线圈及初级轭,永磁阵列中的永磁体N、S极交替均匀排列,永磁阵列设置在初级轭上,线圈绕在初级轭或者永磁阵列上；所述次级包括次级轭及导磁材料构成的次级杆阵列,次级杆阵列中次级杆沿同一平面均匀排列,次级杆阵列的端部通过次级轭连接形成栅栏结构,次级杆的杆距等于永磁体的极距的非零偶数倍,次级杆阵列位于永磁阵列上方,次级杆与永磁阵列之间存在间隙,为第一气隙；次级杆端部与初级轭之间存在间隙,为第二气隙；所述次级在平面上运动,通过磁路和磁通量的变化使线圈中产生电流。本发明提供了一种体积小、结构简单的新型的直线发电装置。(The invention discloses a linear power generation device, which comprises a primary and a secondary, wherein the primary comprises a permanent magnet array, a coil and a primary yoke, poles N, S of permanent magnets in the permanent magnet array are alternately and uniformly arranged, the permanent magnet array is arranged on the primary yoke, and the coil is wound on the primary yoke or the permanent magnet array; the secondary pole comprises a secondary yoke and a secondary pole array formed by magnetic materials, secondary poles in the secondary pole array are uniformly arranged along the same plane, the end parts of the secondary pole array are connected through the secondary yoke to form a fence structure, the pole pitch of the secondary pole is equal to nonzero even times of the pole pitch of the permanent magnet, the secondary pole array is positioned above the permanent magnet array, and a gap is formed between the secondary pole and the permanent magnet array and is a first air gap; a gap exists between the end of the secondary rod and the primary yoke, and the gap is a second air gap; the secondary moves in a plane, and a current is generated in the coil through the magnetic circuit and the change of the magnetic flux. The invention provides a novel linear power generation device with small volume and simple structure.)

1. A linear power generation device, characterized in that: the permanent magnet synchronous motor comprises a primary and a secondary, wherein the primary comprises a permanent magnet array, coils and a primary yoke, the poles of the permanent magnets N, S in the permanent magnet array are alternately and uniformly arranged, the permanent magnet array is arranged on the primary yoke, and the coils are wound on the primary yoke or the permanent magnet array; the secondary pole comprises a secondary yoke and a secondary pole array formed by magnetic materials, secondary poles in the secondary pole array are uniformly arranged along the same plane, the end parts of the secondary pole array are connected through the secondary yoke to form a fence structure, the pole pitch of the secondary pole is equal to nonzero even times of the pole pitch of the permanent magnet, the secondary pole array is positioned above the permanent magnet array, and a gap is formed between the secondary pole and the permanent magnet array and is a first air gap; a gap exists between the end of the secondary rod and the primary yoke, and the gap is a second air gap; the secondary moves in a plane, and a current is generated in the coil through the magnetic circuit and the change of the magnetic flux.

2. A linear electric power generating apparatus according to claim 1, characterized in that: the primary yoke is of a cuboid structure with a U-shaped cross section, sliding grooves are formed in the upper end faces of two sides of the U-shaped cross section, at least two sliding blocks are arranged on the secondary yokes at two ends of the secondary rod, the sliding blocks are of inverted L-shaped structures, the lower ends of the sliding blocks are arranged in the sliding grooves, and the sliding blocks drive the secondary yokes to slide back and forth in the sliding grooves.

3. A linear electric power generating apparatus according to claim 2, wherein: a permanent magnet array is disposed on a lower bottom surface of the primary yoke, and a coil is wound on the permanent magnet array.

4. A linear electric power generating apparatus according to claim 2, wherein: the permanent magnet array is arranged on the lower bottom surface of the primary yoke, and coils are wound on two side ends of the primary yoke respectively.

5. A linear electric power generating apparatus according to claim 2, wherein: the permanent magnet array is arranged on the lower bottom surface of the primary yoke, and two coils are wound on two sides of the permanent magnet array on the lower bottom surface of the primary yoke respectively.

6. A linear electric power generating apparatus according to claim 1, characterized in that: the primary yoke is of a cuboid structure with an L-shaped cross section, sliding grooves are formed in the upper end face of the left side end of the L-shaped cross section and the upper end face of the opening of the right side of the L-shaped cross section, at least two first sliding blocks are arranged on the secondary yoke, which is close to the left secondary yoke of the L-shaped cross section, of the secondary rod array, at least two second sliding blocks are arranged on the secondary yoke of the other side, the lower end of each first sliding block is arranged in the corresponding sliding groove of the left side of the L-shaped cross section, the lower end of each second sliding block is arranged in the corresponding sliding groove of the right.

Technical Field

The invention relates to the field of generators, in particular to a linear power generation device.

Background

The conventional linear generator consists of a primary coil and a secondary permanent magnet, wherein the primary coil consists of a plurality of groups of coils, the secondary is provided with the permanent magnets with opposite polarities which are alternately distributed, the mass of the secondary is larger, the secondary rotates or linearly moves under the condition of large mass, the structure of the motor is complex, the power required by the secondary during movement is large, and the energy consumption required by current generation is high; due to the length limitation of the coil winding tooth space, the conventional linear generator is difficult to be small in size.

Disclosure of Invention

The invention aims to overcome the defects of relatively complex structure and low efficiency of the conventional linear generator and provide a novel linear generating set with small volume and simple structure.

In order to achieve the purpose, the invention adopts the following technical scheme: a linear power generation device comprises a primary and a secondary, wherein the primary comprises a permanent magnet array, a coil and a primary yoke, poles of permanent magnets N, S in the permanent magnet array are alternately and uniformly arranged, the permanent magnet array is arranged on the primary yoke, and the coil is wound on the primary yoke or the permanent magnet array; the secondary pole comprises a secondary yoke and a secondary pole array formed by magnetic materials, secondary poles in the secondary pole array are uniformly arranged along the same plane, the end parts of the secondary pole array are connected through the secondary yoke to form a fence structure, the pole pitch of the secondary pole is equal to nonzero even times of the pole pitch of the permanent magnet, the secondary pole array is positioned above the permanent magnet array, and a gap is formed between the secondary pole and the permanent magnet array and is a first air gap; a gap exists between the end of the secondary rod and the primary yoke, and the gap is a second air gap; the secondary moves in a plane, and a current is generated in the coil through the magnetic circuit and the change of the magnetic flux.

The primary yoke is of a cuboid structure with a U-shaped cross section, sliding grooves are formed in the upper end faces of two sides of the U-shaped cross section, at least two sliding blocks are arranged on the secondary yokes at two ends of the secondary rod, the sliding blocks are of inverted L-shaped structures, the lower ends of the sliding blocks are arranged in the sliding grooves, and the sliding blocks drive the secondary yokes to slide back and forth in the sliding grooves.

A permanent magnet array is disposed on a lower bottom surface of the primary yoke, and a coil is wound on the permanent magnet array.

The permanent magnet array is arranged on the lower bottom surface of the primary yoke, and coils are wound on two side ends of the primary yoke respectively.

The permanent magnet array is arranged on the lower bottom surface of the primary yoke, and two coils are wound on two sides of the permanent magnet array on the lower bottom surface of the primary yoke respectively.

The primary yoke is of a cuboid structure with an L-shaped cross section, sliding grooves are formed in the upper end face of the left side end of the L-shaped cross section and the upper end face of the opening of the right side of the L-shaped cross section, at least two first sliding blocks are arranged on the secondary yoke, which is close to the left secondary yoke of the L-shaped cross section, of the secondary rod array, at least two second sliding blocks are arranged on the secondary yoke of the other side, the lower end of each first sliding block is arranged in the corresponding sliding groove of the left side of the L-shaped cross section, the lower end of each second sliding block is arranged in the corresponding sliding groove of the right.

The technical scheme of the invention has the following positive effects: the permanent magnet and the coil of the linear power generation device are all arranged on the primary, the secondary is only made of fence-shaped magnetic conductive materials, the permanent magnet and the winding are not needed, the secondary has a simple structure and low cost, and the linear power generation device has obvious advantages in the field of long-stroke operation. Because the structure of the generator is changed and a large coil is adopted, the tooth space of a coil winding does not need to be considered, and the size of the generator can be miniaturized. In addition, as the number of permanent magnets increases, the power generation potential can be made larger.

Drawings

Fig. 1 is a top view of a linear power generator according to an embodiment of the invention.

Fig. 2 is a side view of a linear power generation device according to an embodiment of the present invention.

Fig. 3 is a second top view of the linear power generator according to the first embodiment of the invention.

Fig. 4 is a sectional view taken along line a-a of fig. 1.

Fig. 5 is a perspective view of a linear power generator according to an embodiment of the invention.

Fig. 6 is a sectional view taken along line B-B in fig. 5.

Fig. 7 is a second perspective view of the linear power generator according to the first embodiment of the invention.

Fig. 8 is a cross-sectional view taken along line C-C of fig. 7.

Fig. 9 is a third perspective view of a linear power generator according to a first embodiment of the invention.

Fig. 10 is a cross-sectional view taken along line D-D of fig. 9.

Fig. 11 is a schematic diagram of an arrangement of two coils according to a second embodiment of the present invention.

Fig. 12 is a schematic view of an L-shaped cross-sectional layout in the third embodiment of the present invention.

The labels in the figures are: 1. a primary yoke; 2. a chute; 3. a slider; 4. a secondary yoke; 5. an array of secondary rods; 6. a permanent magnet array; 7. a coil; 8. a first air gap; 9. a second air gap; 10. the direction of the magnetic lines of force; 11. a first slider; 12. and a second slider.

Detailed Description

The technical solution of the present invention will be further explained and explained with reference to the drawings and two embodiments.