CN218276278U

CN218276278U - Carbon brush motor

Info

Publication number: CN218276278U
Application number: CN202222629816.3U
Authority: CN
Inventors: 徐盐花
Original assignee: Dongguan Chuanghuada Motor Co ltd
Current assignee: Dongguan Chuanghuada Motor Co ltd
Priority date: 2022-10-08
Filing date: 2022-10-08
Publication date: 2023-01-10
Anticipated expiration: 2032-10-08

Abstract

The utility model discloses a carbon brush motor, which comprises a housing, the bottom of the housing is provided with a rear cover, and the inside of the rear cover is provided with an electric brush, the middle position of the electric brush is vertically provided with a motor shaft, and the motor shaft rotates at the middle position of the electric brush, and the joint between the electric brush and the motor shaft is provided with a commutator, the motor shaft sleeve is provided with a rotor core, and the core slots inside the rotor core are uniformly distributed and wound with coils, and the motor shaft, the rotor core and the coils coaxially rotate and form a rotor, the rotor core sleeve is provided with magnetic shoes, and the outside of the magnetic shoes is provided with U-shaped springs, and the magnetic shoes are fixed through the U-shaped springs; the magnetic shoe, the shell, the U-shaped spring and the oil-containing bearing form a stator, a rotor shaft head axially penetrates through the stator from the opening direction of the stator to enable the end surface of a rotor iron core and the end surface of the stator magnetic shoe to be arranged in the middle of the stator in a flush mode, and one end, provided with the commutator, of the rotor penetrates through an end cover provided with an electric brush and a universal oil-containing bearing to form a complete motor.

Description

Carbon brush motor

Technical Field

The utility model belongs to the technical field of the motor and specifically relates to a carbon brush motor is related to.

Background

Along with the development of society and the improvement of living standards of people, the quality requirements of people on material life are higher and higher, and the quality requirements of people on physical and mental health are more emphasized, the tooth washing machine is used as a health care product in the life of people, the quality requirements of people on the tooth washing machine are also improved naturally, the tooth washing machine sold on the market at present is various, and common problems exist, namely large volume of an internal motor, high noise, low water pressure which causes the tooth washing machine to shed, short service life, high cost and high price, so that the carbon brush motor is provided.

SUMMERY OF THE UTILITY MODEL

The utility model discloses an it is not enough to overcome above-mentioned condition, aims at providing the technical scheme that can solve above-mentioned problem.

The utility model provides a carbon brush motor, includes the casing, the casing bottom is provided with the back lid, and the inside of back lid is provided with the brush, the vertical motor shaft that is provided with in brush intermediate position, and the motor shaft rotates in the intermediate position of brush to junction between brush and the motor shaft is provided with the commutator, the motor shaft cover is equipped with rotor core, and the inside iron core groove evenly distributed winding of rotor core has the coil to carry out coaxial rotation and form the rotor between motor shaft and rotor core and the coil, rotor core cover is equipped with the magnetic shoe, and the outside of magnetic shoe is provided with the U-shaped spring to fix the magnetic shoe through the U-shaped spring.

Preferably, the motor shaft penetrates through the casing and the top end of the motor shaft rotates, an oil-containing bearing is sleeved at the joint between the motor shaft and the casing, the oil-containing bearing and the motor shaft rotate coaxially, and the oil-containing bearing is located at the top end outside the casing.

Preferably, the magnetic shoe, the casing, the U-shaped spring and the oil-containing bearing form a stator, a rotor shaft head axially penetrates through the stator from the opening direction of the stator to enable the end face of a rotor core and the end face of the stator magnetic shoe to be arranged in the middle of the stator in a flush mode, and one end, provided with the commutator, of the rotor penetrates through an end cover provided with an electric brush and a universal oil-containing bearing to form a complete motor.

Preferably, the top end of the motor shaft is sleeved with a copper meson and a second plastic meson, the second plastic meson is attached to the surface of the copper meson, and the copper meson and the second plastic meson respectively rotate coaxially with the motor shaft.

Preferably, the inside intermediate position of back lid is provided with universal oily bearing, and carries out coaxial rotation between universal oily bearing and the motor shaft to the junction between universal oily bearing and the motor shaft is provided with first plastics meson.

Preferably, two sides of the electric brush are vertically provided with screws, and the electric brush is fixed inside the rear cover through the screws.

Compared with the prior art, the beneficial effects of the utility model are that: the invention systematically optimizes the size, material and numerical value of the parts, increases the torque of the motor on the single motor with the same volume and power, reduces the noise, prolongs the service life, reduces the production cost, and solves the problems of large volume, large noise, short service life, small torque and the like.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

FIG. 1 is a schematic diagram of a carbon brush motor;

FIG. 2 is another schematic view of a carbon brush motor;

FIG. 3 is a schematic structural view of a magnetic shoe;

FIG. 4 is a schematic structural view of a rotor core;

fig. 5 is another structural schematic diagram of the rotor core.

Shown in the figure: 1. the motor comprises a shell, 2, an oil-retaining bearing, 3, a magnetic shoe, 4, a U-shaped spring, 5, a rotor iron core, 6, a motor shaft, 7, a commutator, 8, a first plastic meson, 9, a copper meson, 10, a second plastic meson, 11, a rear cover, 12, a brush, 13, a universal oil-retaining bearing, 14, a screw, 15 and a coil.

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.

Referring to fig. 1 to 5, in an embodiment of the present invention, a carbon brush motor includes a housing 1, a rear cover 11 is disposed at a bottom end of the housing 1, a brush 12 is disposed inside the rear cover 11, and electric power is supplied to a coil on a rotor through the brush 12, a motor shaft 6 is vertically disposed at a middle position of the brush 12, the motor shaft 6 rotates at a middle position of the brush 12, a commutator 7 is disposed at a connection portion between the brush 12 and the motor shaft 6, and a direction of current passing through the coil is changed by the commutator 7, the motor shaft 6 is sleeved with a rotor core 5, and core slots inside the rotor core 5 are uniformly wound with coils 15, and the motor shaft 6 coaxially rotates with the rotor core 5 and the coils 15 to form the rotor, the rotor core 5 is sleeved with magnetic shoes 3, and U-shaped springs 4 are disposed outside the magnetic shoes 3, the magnetic shoe 3 is fixed by the U-shaped spring 4, so that a direct current power supply is introduced into the end of the brush 12, a magnetic field generated by a coil wound on the rotor and a permanent magnet on the magnetic shoe 3 generate radial thrust mutually, the direction of the radial thrust depends on the positive and negative electrode flow directions of the input power supply current, the rotor rotates, the direction of the current flowing through the coil is changed by the commutator 7 after the rotor rotates to a certain angle, so that the rotor keeps continuous operation, the torque, the relative volume and the noise of the motor are increased on a single motor with the same volume and the same power, the service life is prolonged, the production cost is reduced, various performance parameters of the motor are systematically optimized, the service performance of the motor is greatly improved, and the problems that the motor in the prior art is large in volume and large in noise and causes the hydraulic pressure bottom of the tooth cleaner to be released are solved, short service life, high cost and high price.

The motor shaft 6 runs through the casing 1 and the top end thereof rotates, the oil-containing bearing 2 is sleeved at the joint between the motor shaft 6 and the casing 1, the oil-containing bearing 2 and the motor shaft 6 rotate coaxially, and the oil-containing bearing 2 is positioned at the top end outside the casing 1.

The magnetic shoe 3, the machine shell 1, the U-shaped spring 4 and the oil-containing bearing 2 form a stator, a rotor shaft head axially penetrates through the stator from the opening direction of the stator to enable the end face of the rotor iron core 5 and the end face of the stator magnetic shoe 3 to be arranged in the middle of the stator in a flush mode, and one end, provided with the commutator 7, of the rotor penetrates through an end cover provided with an electric brush 12 and a universal oil-containing bearing 13 to form a complete motor.

The top end of the motor shaft 6 is sleeved with a copper meson 9 and a second plastic meson 10, the second plastic meson 10 is attached to the surface of the copper meson 9, and the copper meson 9 and the second plastic meson 10 rotate coaxially with the motor shaft 6 respectively.

The middle position in the back cover 11 is provided with a universal oil bearing 13, the universal oil bearing 13 and the motor shaft 6 rotate coaxially, and a first plastic meson 8 is arranged at the joint between the universal oil bearing 13 and the motor shaft 6.

Screws 14 are vertically arranged on two sides of the electric brush 12, and the electric brush 12 is fixed inside the rear cover 11 through the screws 14.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Claims

1. The utility model provides a carbon brush motor, includes the casing, its characterized in that, the casing bottom is provided with the back lid, and the inside of back lid is provided with the brush, the vertical motor shaft that is provided with of brush intermediate position, and the motor shaft rotates in the intermediate position of brush to junction between brush and the motor shaft is provided with the commutator, the motor shaft cover is equipped with rotor core, and the inside iron core groove evenly distributed winding of rotor core has the coil, and carries out coaxial rotation and formation rotor between motor shaft and rotor core and the coil, rotor core cover is equipped with the magnetic shoe, and the outside of magnetic shoe is provided with the U-shaped spring to fix the magnetic shoe through the U-shaped spring.

2. The carbon brush motor as claimed in claim 1, wherein the motor shaft penetrates through the housing and rotates at a top end thereof, and an oil-retaining bearing is provided at a joint between the motor shaft and the housing, the oil-retaining bearing and the motor shaft coaxially rotate with each other, and the oil-retaining bearing is located at a top end outside the housing.

3. A carbon brush motor according to claim 2, wherein the magnetic shoes, the housing, the U-shaped spring and the oil-retaining bearing form a stator, the rotor shaft head axially penetrates the stator from the opening direction of the stator so that the end surface of the rotor core is flush with the end surface of the stator magnetic shoes and is arranged in the middle of the stator, and the end of the rotor provided with the commutator penetrates the end cover provided with the electric brush and the universal oil-retaining bearing to form a complete motor.

4. The carbon brush motor as claimed in claim 1, wherein the top end of the motor shaft is sleeved with a copper spacer and a second plastic spacer, the second plastic spacer is attached to the surface of the copper spacer, and the copper spacer and the second plastic spacer rotate coaxially with the motor shaft respectively.

5. The carbon brush motor as claimed in claim 1, wherein a universal oil-retaining bearing is disposed at a middle position inside the rear cover, the universal oil-retaining bearing and the motor shaft rotate coaxially, and a first plastic spacer is disposed at a connection position between the universal oil-retaining bearing and the motor shaft.

6. A carbon brush motor according to claim 1, wherein screws are vertically provided on both sides of the brush, and the brush is fixed inside the rear cover by the screws.