CN211790992U

CN211790992U - Brushless non-inductive three-phase motor structure

Info

Publication number: CN211790992U
Application number: CN202020798710.4U
Authority: CN
Inventors: 徐刚
Original assignee: Zhongshan Haotai Electronic Technology Co ltd
Current assignee: Zhongshan Haotai Electronic Technology Co ltd
Priority date: 2020-05-14
Filing date: 2020-05-14
Publication date: 2020-10-27
Anticipated expiration: 2030-05-14

Abstract

The utility model discloses a brushless noninductive three-phase motor structure, including the rotor shell, the grafting of rotor shell top inner wall center department has the metal to rivet the piece, and the metal rivets the inside grafting of piece and has the pivot that extends to the rotor shell inside, and pivot side outer wall is close to bottom department key-type connection and has the bearing that is upper and lower structure distribution, and rotates on the bearing side outer wall and be connected with the tubular metal resonator, and the outside cover of tubular metal resonator has connect the blade of silicon steel, and the winding has the enameled wire on the blade of silicon steel, all bond on blade of silicon steel top and the bottom outer wall has the insulation ring, and the insulation ring is located between enameled. The utility model discloses can avoid producing the abnormal sound after the assembly, the spring can increase the arm distance between the axle center simultaneously, guarantees the balance of bearing, is favorable to increasing rotor moving stability, can be so that brushless motor long-term stable work under the high temperature condition, to preventing the high pressure, prevent that the circuit board is moist, prevent that the circular telegram position plays the isolation with the metal contact, avoids brushless motor short circuit.

Description

Brushless non-inductive three-phase motor structure

Technical Field

The utility model relates to the technical field of electric machines, especially, relate to brushless noninductive three-phase electric machine structure.

Background

The brushless motor is composed of a motor main body and a driver, and is a typical electromechanical integration product.

At present, the existing brushless motor can not work for a long time under a high temperature condition, and the existing brushless motor has a hall electronic element which is unstable in operation when working under an ultrahigh temperature, so that a brushless and non-inductive three-phase motor structure needs to be designed to solve the problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the current brushless motor that exists among the prior art and can not work for a long time under the high temperature condition and the unstable shortcoming of during operation, and the external control plate structure of the brushless noninductive three-phase machine that proposes.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

brushless noninductive three phase machine structure, including the rotor shell, rotor shell top inner wall center department is pegged graft and is had the metal riveting piece, and the metal riveting piece is inside to be pegged graft and has the pivot that extends to the rotor shell inside, pivot side outer wall is close to bottom department key-type connection and has the bearing that is upper and lower structure distribution, and rotates on the bearing side outer wall and be connected with the tubular metal resonator, the tubular metal resonator outside has cup jointed the blade of silicon steel, and the winding has the enameled wire on the blade of silicon steel, all bond on blade of silicon steel top and the bottom outer wall has the insulation ring, and the insulation ring is located between enameled wire and the blade of silicon steel, the spring has been cup jointed to the pivot outside, and the spring is located.

Furthermore, a bottom cover is sleeved on the outer wall of the side surface of the metal pipe close to the bottom end, a color mark is bonded on the outer wall of the bottom part of the bottom cover, an insulating sleeve is sleeved outside the metal pipe, and the insulating sleeve is positioned between the silicon steel sheet and the metal pipe.

Furthermore, PCB boards are installed on two sides of the outer wall of the bottom of the silicon steel sheet through bolts and are electrically connected with connectors through wires.

Furthermore, an annular groove is formed in the outer wall of the side face of the rotating shaft, close to the bottom end, a retaining ring is clamped inside the annular groove, and the retaining ring is located below one of the bearings.

Furthermore, the metal tube is externally sleeved with a copper ring, and the metal ring is positioned between the bottom cover and the insulating sleeve.

Furthermore, the inside rubber magnetism that cup joints of rotor shell, and rubber magnetism is located between rotor shell inner wall and the silicon steel sheet.

The utility model has the advantages that:

1. through the spring that sets up, can avoid producing the abnormal sound after the assembly and staff exert oneself too violently when packing into the rotor and harm the bearing and arouse the abnormal sound that produces when moving, the spring can increase the arm distance between the axle center simultaneously, guarantees the balance of bearing, is favorable to increasing rotor moving stability.

2. Through the insulating sleeve that sets up, can be so that brushless motor stable work for a long time under the high temperature condition, to preventing high pressure, preventing that the circuit board is moist, prevent that circular telegram position and metal contact play the isolation effect, avoid brushless motor short circuit.

3. Through the rotating shaft, the rotating shaft structure is an integral process, so that in the standard range of verticality and concentricity, the brushless motor can be prevented from shaking in operation, and abnormal sound is prevented from being generated by the brushless motor.

Drawings

Fig. 1 is a front view of a structure of a brushless and non-inductive three-phase motor according to the present invention;

fig. 2 is a front sectional view of the structure of the brushless and non-inductive three-phase motor structure according to the present invention;

fig. 3 is a structural plan view of the structure of the brushless and non-inductive three-phase motor according to the present invention;

fig. 4 is a structural side view of the structure of the brushless and non-inductive three-phase motor according to the present invention;

fig. 5 is a schematic circuit diagram of a brushless and non-inductive three-phase motor structure according to the present invention.

In the figure: 1 rotor shell, 2 bottom covers, 3 metal riveting pieces, 4 rotating shafts, 5 rubber magnets, 6 bearings, 7 metal tubes, 8 metal rings, 9 insulating sleeves, 10 silicon steel sheets, 11 insulating ferrules, 12 enameled wires, 13PCB boards, 14 connectors, 15 springs, 16 retaining rings, 17 color marks and 18 annular grooves.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1 to 5, a brushless and non-inductive three-phase motor structure includes a rotor housing 1, a metal rivet 3 is inserted into a center of an inner wall of a top portion of the rotor housing 1, a rotating shaft 4 extending into the rotor housing 1 is inserted into the metal rivet 3, and moves when the motor is powered on, so that the brushless motor operates, a bearing 6 is connected to an outer wall of a side surface of the rotating shaft 4 near a bottom end of the rotating shaft, the bearing 6 is configured in an up-down configuration, so that when the brushless motor is powered on, the rotating shaft 4 rotates inside the metal tube 1, a metal tube 7 is rotatably connected to an outer wall of a side surface of the bearing 6, a silicon steel sheet 10 is sleeved outside the metal 7, an enameled wire 12 is wound on the silicon steel sheet 10, insulating rings 11 are bonded to outer walls of the top portion and the bottom portion of the silicon steel sheet 10, and are used for preventing the enameled wire 12 from directly contacting the silicon steel sheet, the spring 15 is sleeved outside the rotating shaft 4, so that the brushless motor can stably work for a long time under a high-temperature condition, and the spring 15 is positioned between the bottom of one bearing 6 and the inner wall of one side of the metal pipe 7.

Further, the outer wall of the side face of the metal tube 7, which is close to the bottom end, is sleeved with the bottom cover 2, the outer wall of the bottom part of the bottom cover 2 is bonded with the color mark 17, the insulating sleeve 9 is sleeved outside the metal tube 7 and used for preventing the enameled wire 12 and the PCB 13 on the silicon steel sheet 10 from being close to the metal tube 7 and the bottom cover 2, and the metal discharge is easily caused to cause short circuit or influence on the performance of the brushless motor, and the key point is to prevent the brushless motor from being influenced by the discharge of high voltage of equipment and damage to the motor. The pair of insulating sleeves 9 is positioned between the silicon steel sheet 10 and the metal tube 7.

Furthermore, the two sides of the outer wall of the bottom of the silicon steel sheet 10 are provided with a PCB 13 through bolts, and the PCB 13 is electrically connected with a connector 14 through a wire, and is used for being connected with an external power supply to enable the brushless non-inductive motor to be powered on and run.

Furthermore, an annular groove 18 is formed in the outer wall of the side face of the rotating shaft 4 close to the bottom end, a retaining ring 16 is clamped in the annular groove 18 and used for supporting the bearing 6 located below the inner portion of the metal pipe 7 to prevent the bearing 6 from falling, and the retaining ring 16 is located below one of the bearings 6.

Further, a metal ring 8 is sleeved outside the metal tube 7 and used for supporting the insulating sleeve 9, and the metal ring 8 is located between the bottom cover 2 and the insulating sleeve 9.

Further, the inside of the rotor housing 1 is sleeved with a glue magnet 5 for enabling the rotor housing 1 to serve as a stator when the brushless and non-inductive three-phase motor operates, and the glue magnet 5 is located between the inner wall of the rotor housing 1 and the silicon steel sheet 10.

The working principle is as follows: when in use, the brushless non-inductive three-phase motor is firstly connected with an external power supply by an operator, then the operator inserts the external power supply through a joint 14 to enable the brushless non-inductive three-phase motor to start working, meanwhile, a rotor shell 1 provided with a rubber magnet 5 is a rotor of the brushless non-inductive three-phase motor, a component formed by a silicon steel sheet 10, an insulating ferrule 11 and an enameled wire 12 is changed into a stator, when the brushless non-inductive three-phase motor runs, a rotating shaft 4 moves in a metal tube 7, thereby enabling the brushless motor to run, simultaneously, abnormal sound caused by extruding a bearing 6 when the rotating shaft 4 rotates can be reduced through a spring 15, the spring 15 can also enlarge the arm distance between the shaft centers to ensure the balance of the bearing, thereby ensuring the running stability of the rotating shaft 4, and the brushless non-inductive motor can stably work for a long time under the high temperature condition through a high temperature resistant insulating sleeve 9, meanwhile, the enameled wire 12 on the silicon steel sheet 10 is prevented from contacting the metal tube 7, thereby preventing the short circuit of the brushless and non-inductive three-phase motor.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A brushless non-inductive three-phase motor structure comprises a rotor shell (1) and is characterized in that a metal rivet (3) is inserted in the center of the inner wall of the top of the rotor shell (1), and a rotating shaft (4) extending into the rotor shell (1) is inserted into the metal riveting piece (3), the outer wall of the side surface of the rotating shaft (4) is in key connection with bearings (6) which are distributed in an up-and-down structure at the position close to the bottom end, and the outer wall of the side surface of the bearing (6) is rotationally connected with a metal pipe (7), the outer part of the metal pipe (7) is sleeved with a silicon steel sheet (10), and enameled wires (12) are wound on the silicon steel sheet (10), insulation ferrules (11) are bonded on the outer walls of the top and the bottom of the silicon steel sheet (10), and the insulation ferrule (11) is positioned between the enameled wire (12) and the silicon steel sheet (10), the outer part of the rotating shaft (4) is sleeved with a spring (15), and the spring (15) is positioned between the bottom of one of the bearings (6) and the inner wall of one side of the metal tube (7).

2. The structure of the brushless and non-inductive three-phase motor according to claim 1, wherein the outer wall of the side surface of the metal tube (7) near the bottom end is sleeved with a bottom cover (2), the outer wall of the bottom part of the bottom cover (2) is adhered with a color mark (17), an insulating sleeve (9) is sleeved outside the metal tube (7), and the insulating sleeve (9) is located between the silicon steel sheet (10) and the metal tube (7).

3. The structure of a brushless and non-inductive three-phase motor according to claim 1, wherein the PCB (13) is installed on both sides of the outer wall of the bottom of the silicon steel sheet (10) through bolts, and the PCB (13) is electrically connected with the connector (14) through a wire.

4. The structure of the brushless and non-inductive three-phase motor according to claim 1, wherein an annular groove (18) is formed on the outer wall of the side surface of the rotating shaft (4) near the bottom end, a retaining ring (16) is clamped in the annular groove (18), and the retaining ring (16) is located below one of the bearings (6).

5. The structure of a brushless and non-inductive three-phase motor according to claim 1, wherein a metal ring (8) is sleeved outside the metal tube (7), and the metal ring (8) is located between the bottom cover (2) and the insulating sleeve (9).

6. The structure of the brushless and non-inductive three-phase motor according to claim 1, wherein the inside of the rotor housing (1) is sleeved with the rubber magnet (5), and the rubber magnet (5) is located between the inner wall of the rotor housing (1) and the silicon steel sheet (10).