CN113394934A

CN113394934A - Asynchronous motor structure

Info

Publication number: CN113394934A
Application number: CN202110649101.1A
Authority: CN
Inventors: 屈家发
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-06-10
Filing date: 2021-06-10
Publication date: 2021-09-14
Also published as: ZA202109952B

Abstract

An asynchronous motor structure comprises a rotating shaft, wherein a plurality of groups of motor units are arranged on the rotating shaft, each motor unit comprises a rotor fixedly arranged on the rotating shaft, an inner ring is sleeved on the outer side of each rotor, and a gap is formed between each inner ring and each rotor; the inner ring is provided with a slot for inserting and placing a silicon steel sheet, the outer side of the silicon steel sheet is provided with an outer magnetic ring, the outer end of the silicon steel sheet is in contact with the inner side wall of the outer magnetic ring but not connected, and a coil is wound outside the silicon steel sheet. The invention provides an asynchronous motor structure, which simplifies the structure, improves the power and is convenient to maintain.

Description

Asynchronous motor structure

Technical Field

The invention relates to the technical field of motors, in particular to an asynchronous motor structure.

Background

The traditional motor has fewer windings, the length of the wound windings is equivalent to the length of a machine body and even larger than the machine body, the number of turns of the windings is reduced, and the contact area between excitation and an electromagnetic field is reduced.

When the fan is in operation, the fan must be provided with a cooling fan, once the fan is damaged, the temperature rises rapidly and the fan is easy to burn; meanwhile, the rotating shaft is stressed greatly when rotating, the temperature is increased, the service life of the rotating shaft is shortened, and once the rotating shaft is damaged, a hall sweeping accident is easy to happen, so that the whole machine is scrapped. And replacement of individual cores and other components is inconvenient.

Disclosure of Invention

The technical problem to be solved by the invention is to provide an asynchronous motor structure, which simplifies the structure, improves the power and facilitates the maintenance.

In order to solve the technical problems, the technical scheme adopted by the invention is as follows: an asynchronous motor structure comprises a rotating shaft, wherein a plurality of groups of motor units are arranged on the rotating shaft, each motor unit comprises a rotor fixedly arranged on the rotating shaft, an inner ring is sleeved on the outer side of each rotor, and a gap is formed between each inner ring and each rotor; the inner ring is provided with a slot for inserting and placing a silicon steel sheet, the outer side of the silicon steel sheet is provided with an outer magnetic ring, the outer end of the silicon steel sheet is in contact with the inner side wall of the outer magnetic ring but not connected, and a coil is wound outside the silicon steel sheet.

Preferably, the bottom of slot is equipped with the backstop strip, and the bottom of silicon steel sheet is equipped with the silicon steel sheet base, and the silicon steel sheet base cooperatees with the slot.

Preferably, a shell is arranged on the outer side of the outer magnetic ring.

Preferably, the outer surface of the shell is provided with tooth-shaped protrusions for heat dissipation.

Preferably, the inner ring is made of an insulating material.

Preferably, an intermediate plate is arranged between adjacent motor units, and side covers are arranged on the outer sides of the motor units at two ends.

Preferably, the middle plate is provided with a vent hole.

Preferably, a temperature sensor is arranged in a space formed by the inner ring and the outer magnetic ring.

Preferably, a rotating speed sensor for measuring the rotating speed of the rotor is arranged on the side wall of the middle plate or the side cover.

Preferably, the wire connection control box is arranged outside the shell.

The invention provides an asynchronous motor structure, which has the following beneficial effects:

1. the traditional winding mode is changed, the winding distance is shortened, the number of winding turns is increased, the power input is reduced, and the torque output is increased in the effective area;

2. because the windings are single integrated modules, if short circuit occurs, only the shell needs to be opened, a certain winding needs to be removed and replaced, and all coils do not need to be replaced, so that the maintenance cost is reduced;

3. when starting, the starting can be carried out one by one, so that the circuit elements cannot be damaged by overlarge current, and overlarge power cannot be wasted. One machine has multiple purposes, small volume and light weight, and saves the purchase cost.

Drawings

The invention is further illustrated by the following examples in conjunction with the accompanying drawings:

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of the motor unit of the present invention;

FIG. 3 is a schematic view of the inner ring of the present invention;

FIG. 4 is a schematic structural view of a silicon steel sheet according to the present invention;

FIG. 5 is a schematic structural view of the intermediate plate according to the present invention.

Detailed Description

As shown in fig. 1-5, an asynchronous motor structure includes a rotating shaft 1, a plurality of groups of motor units are arranged on the rotating shaft 1, each motor unit includes a rotor 2 fixedly arranged on the rotating shaft 1, an inner ring 3 is sleeved outside the rotor 2, and a gap is formed between the inner ring 3 and the rotor 2; the inner ring 3 is provided with a slot 5 for inserting the silicon steel sheet 4, the outer side of the silicon steel sheet 4 is provided with an outer magnetic ring 6, the outer end of the silicon steel sheet 4 is in contact with the inner side wall of the outer magnetic ring 6 but not connected, and the outer part of the silicon steel sheet 4 is wound with a coil.

Preferably, the bottom of slot 5 is equipped with backstop 7, and the bottom of silicon steel sheet 4 is equipped with silicon steel sheet base 8, and silicon steel sheet base 8 cooperatees with slot 5. The silicon steel sheet is arranged in an inserting mode, so that the replacement is convenient.

Preferably, a housing 9 is arranged on the outer side of the outer magnetic ring 6.

Preferably, the outer surface of the housing 9 is provided with a tooth-shaped protrusion for heat dissipation.

Preferably, the inner ring 3 is made of an insulating material.

Preferably, an intermediate plate 10 is provided between adjacent motor units, and side covers 11 are provided on the outer sides of the motor units at both ends.

Preferably, the middle plate 10 is provided with vent holes 12. The air circulation is convenient, and the heat dissipation is carried out.

Preferably, a temperature sensor 13 is arranged in a space formed by the inner ring 3 and the outer ring 6. And detecting the temperature of the motor during operation.

Preferably, a rotation speed sensor 14 for measuring the rotation speed of the rotor is arranged on a side wall of the middle plate 10 or the side cover 11.

Preferably, the wiring control box 15 is further included, and the wiring control box 15 is provided outside the housing 9. The device consists of a plurality of stators and a plurality of rotors and is used for controlling the rotating speed and the temperature. (1) When the rotating speed reaches the designed high rotating speed and the load is light, one to N stator power supplies can be automatically turned off, no-load power input is reduced, when the load reaches the designed low rotating speed and the load is loaded, one to N stators can be automatically supplied with power, output power is met, and output torque meets the load requirement. (2) When the temperature exceeds the design temperature, the power supply can be automatically disconnected, the stator with low temperature supplies power, the load requirement is met, the service life of the motor is prolonged, the damage of the motor is reduced, and the cost is saved.

The above-described embodiments are merely preferred embodiments of the present invention, and should not be construed as limiting the present invention, and the scope of the present invention is defined by the claims, and equivalents including technical features described in the claims. I.e., equivalent alterations and modifications within the scope hereof, are also intended to be within the scope of the invention.

Claims

1. The utility model provides an asynchronous machine structure, includes pivot (1), is equipped with a plurality of groups of motor element on pivot (1), its characterized in that: the motor unit comprises a rotor (2) fixedly arranged on the rotating shaft (1), an inner ring (3) is sleeved outside the rotor (2), and a gap is formed between the inner ring (3) and the rotor (2); be equipped with slot (5) that are used for inserting silicon steel sheet (4) on inner ring (3), the outside of silicon steel sheet (4) is equipped with outer magnetic ring (6), and the outer end of silicon steel sheet (4) contacts but does not connect with the inside wall of outer magnetic ring (6), and the coil is around establishing in the outside of silicon steel sheet (4).

2. An asynchronous machine structure according to claim 1, characterized in that: the bottom of slot (5) is equipped with backstop strip (7), and the bottom of silicon steel sheet (4) is equipped with silicon steel sheet base (8), and silicon steel sheet base (8) cooperate with slot (5).

3. An asynchronous machine structure according to claim 1, characterized in that: and a shell (9) is arranged on the outer side of the outer magnetic ring (6).

4. An asynchronous machine structure according to claim 3, characterized in that: the outer surface of the shell (9) is provided with tooth-shaped projections for heat dissipation.

5. An asynchronous machine structure according to claim 1, characterized in that: the inner ring (3) is made of an insulating material.

6. An asynchronous machine structure according to claim 1, characterized in that: an intermediate plate (10) is arranged between the adjacent motor units, and side covers (11) are arranged on the outer sides of the motor units at the two ends.

7. An asynchronous machine structure according to claim 6, characterized in that: the middle plate (10) is provided with a vent hole (12).

8. An asynchronous machine structure according to claim 1, characterized in that: and a temperature sensor (13) is arranged in a space formed by the inner ring (3) and the outer magnetic ring (6).

9. An asynchronous machine structure according to claim 6, characterized in that: and a rotating speed sensor (14) for measuring the rotating speed of the rotor is arranged on the side wall of the middle plate (10) or the side cover (11).

10. An asynchronous machine structure according to claim 3, characterized in that: the wire connection control box (15) is further included, and the wire connection control box (15) is arranged outside the shell (9).