RU101881U1 - LINEAR ELECTRIC GENERATOR - Google Patents

Abstract

 1. A linear electric generator comprising a cylindrical body of soft magnetic iron, a frame of non-magnetic material placed inside it with ring inductive coils located on it in a row separated by cheeks, generating a magnetic core with at least two permanent magnets with axial magnetization, characterized in that permanent magnets having a disk shape are placed inside a thin-walled diamagnet cylinder with a gap relative to each other and with an opposite arrangement of the same name agnitnyh poles bonded disk hubs of the magnetic field with axial lugs, or planted ot hardened adhesive thin-walled circumferential walls of the cylinder and are able to free reciprocating movement within the frame with the annular inductor. ! 2. The generator according to claim 1, characterized in that the relative sizes of the said constituent elements are in the following limits: the height of the disk permanent magnets is (0.3 ÷ 0.4) of their diameter; the gap between the disk permanent magnets is determined by the thickness of the non-magnetic gaskets and is (0.5 ÷ 1) of the height of the disk permanent magnets; the inner diameter of the cylindrical body is larger than the diameter of the disk permanent magnets by no more than their height; the length of each of the ring inductive coils is equal to the sum of the height of the disk permanent magnets and the gap between them; the stroke length of the generating magnetic core is not more than the gap between the disk permanent magnets; the gap between the thin-walled cylinder with disc permanent magnets and the internal�

Description

The utility model relates to electrical engineering and can be used as converters of the reciprocating movement of parts of mechanisms into electrical energy.

A device is known comprising a casing made of soft magnetic iron, a frame made of non-magnetic material with ring inductive coils located on it in a row, generating a magnetic core with ring permanent magnets (see RF Patent Utility Model No. 83,373, published May 27, 2009 Bull. No. 15) prototype.

The disadvantage of the prototype is the low efficiency associated with the loss of energy of the magnetic flux of the ring permanent magnets, which closes through the hole of the ring magnets.

The technical result consists in increasing the conversion efficiency due to the use of disk permanent magnets, which, if the magnetic fluxes of permanent magnets are equal in the proposed utility model and prototype, will lead to a decrease in the size and weight of the generator.

The technical result is achieved by the fact that the linear electric generator comprises a cylindrical casing made of soft magnetic iron, a frame made of non-magnetic material placed inside it with ring inductive coils located on it in a row, separated by cheeks, generating a magnetic core with at least two permanent magnets with an axial magnetization. The peculiarity is that the permanent magnets having a disk shape are placed inside a thin-walled diamagnet cylinder with a gap relative to each other, and the opposing arrangement of the magnetic fluxes of the same name are fastened by disk magnetic concentrators with axial tips pressed or glued along the circumference of the walls of the thin-walled cylinder and have the possibility of free reciprocating movement inside the frame with ring inductive coils. The relative sizes of the mentioned constituent elements are in the following limits: the height of the disk permanent magnets is (0.3 ÷ 0.4) of their diameter; the gap between the disk permanent magnets is determined by the thickness of the non-magnetic gaskets, and is (0.5 ÷ 1) of the height of the disk permanent magnets; the inner diameter of the cylindrical body is larger than the diameter of the disk permanent magnets no more than by their height; the length of each of the ring inductive coils is equal to the sum of the height of the disk permanent magnets, and the gap between them; the stroke length of the generating magnetic core is not more than the gap between the disk permanent magnets; the gap between the thin-walled cylinder with disk permanent magnets and the inner surface of the frame with ring inductive coils should be minimal and provide free reciprocating movement of the generating magnetic core.

The essence of the utility model is illustrated by graphic materials which depict: in Fig. 1 - construction of a linear electric generator with a view from the end of the section; figure 2 - schematically shows the visualized magnetic field lines that are closed through the magnetic circuit and ring inductive coils.

The linear electric generator contains a cylindrical body 1 made of soft magnetic iron, a frame 2 made of non-magnetic material placed inside it with ring inductive coils 3 arranged on it in a row, separated by cheeks 4, generating a magnetic core with at least two permanent magnets 5 with axial magnetization. Permanent disk-shaped magnets 5 are placed inside a thin-walled diamagnet cylinder 6 with a gap Δ relative to each other and with the opposite location of the same magnetic poles fastened by magnetic field concentrators 7 with axial tips 8 pressed or glued around the circumference of the walls of the thin-walled cylinder 6 and have the possibility of free reciprocating movement inside the frame 2 with ring inductive coils 3. The relative dimensions of the said composite elements comrade are in the following ranges: the height h circular permanent magnets 5 is (0,3 ÷ 0,4) on their diameter D _m, h = (0,3 ÷ 0,4) D _m; the gap Δ between the disk permanent magnets 5 is determined by the thickness Δ of the non-magnetic gaskets 9, and is (0.5 ÷ 1) of the height h of the disk permanent magnets 5, Δ = (0.5 ÷ 1) h; the inner diameter D _{k of the} cylindrical body 1 is larger than the diameter D _{m of the} disk permanent magnets 5 by no more than half their height h, (D _m + h) ≥D _k ; the length l _{k of} each of their annular inductive coils 3 is equal to the sum of the height h of the disk permanent magnets 5, and the gap Δ between them l _k = h + Δ; the length l _{x of the} stroke of the generating magnetic core is not more than the gap Δ between the disk permanent magnets 5, l _x ≤Δ; the gap δ between the thin-walled cylinder 6 with permanent disk magnets 5 and the inner surface of the frame 2 with ring inductive coils 3 should be minimal and providing free reciprocating movement of the generating magnetic core.

The end walls 10 of the cylindrical body 1 are made of a diamagnet, and dampers 11 are located on their inner sides. The number of disk permanent magnets 5 determines the power of the generator. Figure 2 schematically shows the visualized magnetic lines of force 12 of the disk permanent magnets 5, which are closed along the magnetic circuit and intersect the turns of the ring inductive coils 3. When the oscillating magnetic core is reciprocated in the ring inductive coils 3, an EMF is induced.

Ring inductive coils 3 can be electrically connected in parallel-counter or series-counter. In the absence of holes in the disk permanent magnets 5 in the conversion uses the energy of the magnetic field completely, which leads to an increase in conversion efficiency.

Claims (2)

1. A linear electric generator comprising a cylindrical body of soft magnetic iron, a frame of non-magnetic material placed inside it with ring inductive coils located on it in a row separated by cheeks, generating a magnetic core with at least two permanent magnets with axial magnetization, characterized in that permanent magnets having a disk shape are placed inside a thin-walled diamagnet cylinder with a gap relative to each other and with an opposite arrangement of the same name agnitnyh poles bonded disk hubs of the magnetic field with axial lugs, or planted ot hardened adhesive thin-walled circumferential walls of the cylinder and are able to free reciprocating movement within the frame with the annular inductor. 2. The generator according to claim 1, characterized in that the relative sizes of the said constituent elements are in the following limits: the height of the disk permanent magnets is (0.3 ÷ 0.4) of their diameter; the gap between the disk permanent magnets is determined by the thickness of the non-magnetic gaskets and is (0.5 ÷ 1) of the height of the disk permanent magnets; the inner diameter of the cylindrical body is larger than the diameter of the disk permanent magnets by no more than their height; the length of each of the ring inductive coils is equal to the sum of the height of the disk permanent magnets and the gap between them; the stroke length of the generating magnetic core is not more than the gap between the disk permanent magnets; the gap between the thin-walled cylinder with disk permanent magnets and the inner surface of the frame with ring inductive coils should be minimal and provide free reciprocating movement of the generating magnetic core.