RU214559U1 - RECIPROCATING MOTOR - Google Patents

Abstract

The claimed utility model relates to the field of electrical engineering and can be used in electrical energy converters for low-power drive devices. The technical result is to reduce the weight of the structure and increase reliability. The reciprocating motor consists of a cylindrical body, an inductor wound on the body, an armature made of a neodymium magnet in the form of a rod with axial magnetization, holding rods on both sides to perform useful work. The motor housing is molded from a hard, heat-resistant polymer, including an inductor frame, an armature end stop with a hole for the stem, and at least one housing cover latch slot. 1 w.p. f-ly, 1 ill.

Description

Technical field

The claimed utility model relates to the field of electrical engineering and can be used in electrical energy converters for low-power drive devices, including mobile ones.

State of the art

A reciprocating motion motor (SU1758789A1 dated 1990.01.17, IPC class H02K 33/00) is known from the existing level of technology, containing two fixed permanent stator magnets, in the gap between which there is a permanent armature magnet moving along the gap and equipped with a control winding. The directions of magnetization of the stator and winding magnets coincide and are opposite to the direction of magnetization of the armature magnet.

The closest technical solution to the claimed is a permanent magnet drive (RU94391 dated 2009.10.20, IPC class H02K3/00) containing a cylindrical housing made of soft magnetic iron, inside which is placed a frame made of non-magnetic material with an annular inductive coil, inside which is placed capable of reciprocating translational movement of an armature with annular permanent magnets fixed on an axis of soft magnetic iron. The peculiarity is that the annular permanent magnets have radial magnetization with the same magnetic poles along the ring on the outer generatrix and are placed on the axis in the center with gaps one relative to the other, and the number of annular permanent magnets determines the required drive power. The length of the annular inductive coil is not more than the sum of the lengths of the row of annular permanent magnets and the armature stroke. An annular inductive coil is electrically connected via an electronic switch controlled by a sensor

The disadvantage of the above inventions is:

- small range of movement, leading to less use as drives of various mechanisms;

- an increase in the range of movement is directly related to the loss of power.

The technical result is:

- in a simplified design (compared to the prototype), due to mold casting;

- in reducing the weight of the structure and reliability of work.

Disclosure of the essence of the technical solution

The technical solution to the above problem is solved due to the fact that the reciprocating motor, consisting of a cylindrical body, an inductor wound on the body, an armature made of a neodymium magnet in the form of a rod with axial magnetization, holding rods on both sides to perform useful work and characterized in that the motor housing is made by molding from a hard heat-resistant polymer, including the inductor coil frame, the end stop of the armature travel with a hole for the rod and at least one slot for the housing cover latch. The specified technical solution provides reliable operation and ease of manufacture of the engine.

Brief list of drawings

Additionally, we note that the attached drawing in Fig. 1 shows the most preferred embodiment of the technical solution and cannot be considered as limiting the content of the technical solution, which includes other embodiments.

In FIG. 1 - shows a reciprocating engine obtained using mold casting.

pos. 1 - stator, made of copper winding wire, for example PETV-2, and is an inductor wound on housing 4, impregnated with an epoxy compound for heat dissipation, solidity, as well as protection from moisture and aggressive environments.

pos. 2 - anchor, made of axially magnetized neodymium magnet and represents a piston in the form of a rod, covered with a heat-shrink film to protect against mechanical wear.

pos. 3A and 3B - a rod made of a solid heat-resistant polymer and is a part in the form of a nail. The rods 3A and 3B are held together by the shrink film of the armature 2.

pos. 4 - housing, made of solid heat-resistant polymer and represents a cylinder for the armature stroke 2, side stops of the inductor coil and the end stop of the armature stroke with a hole for the free stroke of the rod 3B. These elements of the body 4 are connected in one piece by means of mold casting.

pos. 5 - housing cover 4, made of soft heat-resistant polymer and is a U-shaped part. The case cover 4 has a latch ring, similar to the latch principle on fountain pens, and holes for the free movement of the stem 3A. All elements are made in a single design using mold casting.

pos. 6 - gasket, made of porous rubber and is a disk with a hole in the center. Gasket 6 is designed to cushion the anchor.

pos. 7 - opening of the body 4, is a hole for the free travel of the rod. This element is made in a single body using mold casting.

pos. 8 - the gap between the stator 1 and the armature 2 is the minimum air gap for the free play of the armature 2.

pos. 9 - the shift between the stator coil 1 and the armature 2 of the cover 5 is the minimum displacement of the armature relative to the stator coil 1, towards the working stroke of the armature 2.

pos. 10 - controller, made of a programmable microcircuit with reversal elements in a single circuit and is a small block. The unit can be controlled either directly or via a smartphone, radio or IR remote control.

Implementation of the technical solution

In FIG. 1 shows the implementation of the technical solution, where the reciprocating motor is made in a single housing.

The body 4 itself is made in a cylindrical shape for the armature stroke 2, the side stops of the inductor coil and the end stop of the armature stroke with a hole for the free stroke of the rod 3B. These elements of the body 4 are connected in one piece by means of mold casting. Body 4 is cast from a solid heat-resistant polymer.

The use of mold casting for casting body 4 and cover 5 ensures the assembly of the claimed engine in a short time, with high quality and minimal manufacturing cost.

Two rods 3A and 3B made of non-magnetic material are attached to the anchor 2 on both sides with the help of a shrink film. Rods 3A and 3B serve as a transmission link of electromechanical energy to perform useful work.

On the cover 5, which is the opposite stroke limiter of the armature 2, there is a hole for the free travel of the rod 3A and the latch ring, which snap into the groove located inside the body 4, which allows you to hold the cover 5.

The number of rings is determined by the engine power. The cover 5 of the body 4 is also made by mold casting.

The operation of the reciprocating motor consists in a cyclic reversal of the signal (DC voltage) supplied from the programmable controller 10 to the stator inductor 1. In the controller 10, the stroke of the armature 2 is programmed in frequency and other parameters.

The stator coil 1 receives a signal from the controller 10.

Inside the stator 1 of a certain inner diameter there is an armature 2 of a smaller diameter and a magnetic flux of a certain direction is created. The resulting smallest gap 8 between the stators and the armature 2 serves as the free play of the armature 2.

The armature 2 is equal in length to the length of the stator coil 1, the armature 2 consists of a neodymium magnet of circular cross section with axial magnetization. At the initial moment of operation of the engine, the magnetic flux of the stator 1 is opposite to the magnetic lines of force of the armature 2.

Armature 2 moves due to the smallest shift 9 between the stator coil 1 and armature 2.

Housing cover 5 and porous rubber gasket 6A create shift conditions 9. Porous rubber gaskets also serve as shock absorbers 6A and 6B of armature 2. Armature 2, reaching shift 9B, changes its course in the opposite direction due to the changed magnetic flux of stator 1. Holds armature 2 in shift 9B the end of the body 4, having a hole 7B, with the smallest clearance for the normal stroke of the rod 3B. So the cycle is repeated with N - programmable frequency of the controller 10. Movement of the armature 2 takes place in the body 4 of a light non-magnetic material. Two rods 3A and 3B made of non-magnetic material are attached to the anchor 2 on both sides with the help of a shrink film. Rod 3A and 3B serves as a transmission link of electrical mechanical energy in the performance of work. When performing one-sided work, you can easily remove one of the rods 3A or 3B, or both, depending on the purpose.

The proposed technical solution ensures its use in many technical fields, due to the low cost and ease of implementation.

Claims (2)

1. A reciprocating motor, consisting of a cylindrical body, an inductor wound on the body, an armature made of a neodymium magnet in the form of a rod with axial magnetization, holding rods on both sides to perform useful work, characterized in that the motor body is made using die casting including inductor frame, armature end stop with stem bore and at least one housing cover latch slot. 2. The engine according to claim 1, characterized in that the armature holds the rods with a heat shrink film.

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