CN219041520U - Brushless motor for electric wind barrel - Google Patents

Abstract

The application provides a brushless motor used on an electric dryer, which is applied to the field of motors and comprises a shell, blades, a stator assembly, a rotor assembly, a rear bracket, two bearing sleeves and a ball bearing; the center of the shell is provided with a through port, the stator assembly is arranged in the shell, and the rear bracket is arranged on one side of the stator assembly, which protrudes out of the shell, and has a cladding effect; the blades are arranged on the other side of the shell, and the rotor assemblies are arranged in the stator assemblies and used for moving and rotating; the bearing sleeve and the ball bearing are respectively arranged at two ends of the rotor assembly, and the inner surface of the bearing sleeve is attached to the outer surface of the ball bearing; the motor has the advantages of low rotating speed, low power, high noise, short service life and being a carbon brush structure motor which cannot be solved by the traditional air duct at present; in addition, the design of the motor in the market at present is that two ball bearings are assembled with the rotor and the stator in an integrated structure, so that the motor is not beneficial to better assembly, and the technical problem of complicated process is solved.

Description

Brushless motor for electric wind barrel

Technical Field

The application relates to the technical field of motors, in particular to a brushless motor used on an electric dryer.

Background

At present at home and abroadThe traditional wind tube products basically use a brush motor with the outer diameter

The left and right motors have low rotating speed (about 1 ten thousand revolutions per minute), small power (about 20W), high noise (more than 150 dB), and short service life, and are of carbon brush structure;

in addition, in the design of the motor in the market, both ball bearings are assembled with the rotor and the stator in an integrated structure, which is not beneficial to better assembling the motor and complicates the process.

Disclosure of Invention

The motor aims to solve the problems that the rotating speed of the traditional air duct is low, the power is low, the noise is high, and the motor is of a carbon brush structure and has short service life; in addition, the design of the motor in the market is that two ball bearings are assembled with the rotor and the stator in an integrated structure, so that the motor is not beneficial to better assembly, the technical problem of complicated process is solved, and the brushless motor used on the electric air dryer is provided.

The application adopts the following technical means for solving the technical problems:

a brushless motor used on an electric dryer comprises a shell, blades, a stator assembly, a rotor assembly, a rear bracket, two bearing sleeves and a ball bearing;

the center of the shell is provided with a through opening, the stator assembly is arranged in the shell, and the rear bracket is arranged on one side of the stator assembly, which protrudes out of the shell, and has a cladding effect;

the blades are arranged on the other side of the shell, and the rotor assemblies are arranged in the stator assemblies and used for moving and rotating;

the bearing sleeve and the ball bearing are respectively arranged at two ends of the rotor assembly, and the inner surface of the bearing sleeve is attached to the outer surface of the ball bearing;

and a damping silica gel sleeve is arranged in the bearing sleeve.

Further, the stator assembly includes a stator core and a stator encapsulation; one side of stator rubber coating is equipped with a plurality of PIN needles, a plurality of PIN needles are inserted and are parallel to each other around the outer edge of stator rubber coating, a plurality of PIN needles are towards one side of back support, stator core cover is established the surface of stator rubber coating.

Further, the rotor assembly comprises an axle center, a copper ring, a magnet, a short copper ring and a spring member;

the center of the blade, the ball bearing, the copper ring, the magnet, the short copper ring, the spring piece, the stator rubber coating and the rear bracket are all provided with through holes with the same caliber, and the axle center sequentially passes through the through holes of the blade, the ball bearing, the stator rubber coating, the copper ring, the magnet, the short copper ring, the spring piece, the ball bearing and the rear bracket and then extends out of the outside;

the blade with from outside to interior order is ball bearing and copper ring between the stator rubber coating, the magnetite is located the center department of stator rubber coating, the copper ring is connected in the one end of magnetite, the other end of magnetite with short copper ring is connected, be between short copper ring, the ball bearing for the sandwich structure of spring spare.

The application provides a brushless motor for use on an electric dryer, has following beneficial effect: through shell, blade, stator assembly, rotor assembly and back support, two bearing sleeves and ball bearings; the center of the shell is provided with a through opening, the stator assembly is arranged in the shell, and the rear bracket is arranged on one side of the stator assembly, which protrudes out of the shell, and has a cladding effect; the blades are arranged on the other side of the shell, and the rotor assemblies are arranged in the stator assemblies and used for moving and rotating; the bearing sleeve and the ball bearing are respectively arranged at two ends of the rotor assembly, and the inner surface of the bearing sleeve is attached to the outer surface of the ball bearing; the motor has the advantages of low rotating speed, low power, high noise, short service life and being a carbon brush structure motor which cannot be solved by the traditional air duct at present; in addition, the design of the motor in the market at present is that two ball bearings are assembled with the rotor and the stator in an integrated structure, so that the motor is not beneficial to better assembly, and the technical problem of complicated process is solved.

Drawings

FIG. 1 is a schematic diagram of the overall structure of one embodiment of a brushless motor for use in an electric dryer according to the present application;

FIG. 2 is a second schematic diagram of the overall structure of one embodiment of a brushless motor for use in an electric dryer in accordance with the present application;

FIG. 3 is an exploded view of the overall structure of one embodiment of a brushless motor for use in an electric dryer in accordance with the present application;

fig. 4 is a schematic view of a bearing housing of an embodiment of a brushless motor used in an electric wind tunnel according to the present application.

The implementation, functional features and advantages of the present application will be further described with reference to the accompanying drawings in conjunction with the embodiments.

Detailed Description

It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the present application.

The technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without making any inventive effort, are intended to be within the scope of the present application.

It is noted that the terms "comprising," "including," and "having," and any variations thereof, in the description and claims of the present application and in the foregoing figures, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those listed steps or elements but may include other steps or elements not listed or inherent to such process, method, article, or apparatus. In the claims, specification, and drawings of this application, relational terms such as "first" and "second," and the like are used solely to distinguish one entity/operation/object from another entity/operation/object without necessarily requiring or implying any actual such relationship or order between such entities/operations/objects.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the present application. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those of skill in the art will explicitly and implicitly appreciate that the embodiments described herein may be combined with other embodiments.

1-4, a brushless motor used on an electric air dryer in an embodiment of the present application is shown in schematic view;

a brushless motor used on an electric dryer comprises a shell 1, blades 3, a stator assembly, a rotor assembly and a rear bracket 11, and two bearing sleeves 5 and ball bearings 6;

the center of the shell is provided with a through opening, the stator assembly is arranged in the shell, and the rear bracket 11 is arranged on one side of the stator assembly protruding out of the shell and takes a coating effect;

the blades 3 are arranged on the other side of the shell, and the rotor assemblies are arranged in the stator assemblies and used for moving and rotating;

the bearing sleeve 5 and the ball bearing 6 are respectively arranged at two ends of the rotor assembly, and the inner surface of the bearing sleeve 5 is attached to the outer surface of the ball bearing 6;

a damping silica gel sleeve 501 is arranged in the bearing sleeve 5;

the stator assembly comprises a stator core 7 and a stator encapsulation 2; one side of the stator rubber coating 2 is provided with a plurality of PIN needles, the PIN needles are inserted around the outer edge of the stator rubber coating 2 and are parallel to each other, the PIN needles face one side of the rear bracket 11, and the stator iron core 7 is sleeved on the outer surface of the stator rubber coating 2.

The rotor assembly comprises an axle center 4, a copper ring, a magnet, a short copper ring 8 and a spring piece 9;

the centers of the blade 3, the ball bearing 6, the copper ring, the magnet, the short copper ring 8, the spring piece 9, the stator rubber coating 2 and the rear bracket 11 are provided with through holes with the same caliber, and the axle center 4 sequentially passes through the through holes of the blade 3, the ball bearing 6, the stator rubber coating 2, the copper ring, the magnet, the short copper ring 8, the spring piece 9, the ball bearing 6 and the rear bracket 11 and then extends out of the outside;

the blade 3 and the stator rubber coating 2 are sequentially provided with a ball bearing 6 and a copper ring from outside to inside, the magnet is arranged at the center of the stator rubber coating 2, the copper ring is connected with one end of the magnet, the other end of the magnet is connected with the short copper ring 8, and a clamping structure of the spring piece 9 is arranged between the short copper ring 8 and the ball bearing 6.

In particular, the method comprises the steps of,

1. the rotating speed of the brushless motor is high, more than 10 ten thousand revolutions, and the high-rotating-speed motor generates larger air quantity, stronger wind pressure and larger wind speed than the traditional motor;

2. the rotating speed of the brushless motor is high, more than 10 ten thousand revolutions, the noise generated by the high-rotating-speed motor is different from the noise frequency range of the traditional motor, and the human ears in some frequency ranges are insensitive, so that the comfort is strong;

3. as the structural design of the motor is different from that of the traditional brush motor, a curved air duct and a blade structure with 13 blades are adopted, and the bearing sleeve 5 and the ball bearing 6 on the rotor component structure are also different from those of the traditional brush motor, the motor has lower noise during working;

4. the brushless motor has no carbon brush structure, so that the problem of shortened service life of the motor caused by abrasion generated when the carbon brush rotates is avoided;

5. the rear bearing of the brushless motor is independently arranged on the bearing sleeve 5, and is a structure which is independent of the whole rotor assembly and the stator assembly, and the damping silica gel sleeve 501 is arranged in the bearing sleeve 5, so that the rotor assembly is smaller in vibration and quieter when the final brushless motor runs when actually rotating; during assembly, the bearing sleeve 5 is independently assembled, the damping silica gel sleeve 501 is arranged in the bearing sleeve 5, and finally the other part of the rotor of the bearing sleeve 5 is adhered together by glue, so that the requirement on the roughness precision in the bearing sleeve 5 is low, the cost of parts is low, and the process of the whole assembly is simple.

Although embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the application, the scope of which is defined in the appended claims and their equivalents.

Claims (3)

1. A brushless motor used on an electric dryer is characterized by comprising a shell, blades, a stator assembly, a rotor assembly, a rear bracket, two bearing sleeves and a ball bearing;

the center of the shell is provided with a through opening, the stator assembly is arranged in the shell, and the rear bracket is arranged on one side of the stator assembly, which protrudes out of the shell, and has a cladding effect;

the blades are arranged on the other side of the shell, and the rotor assemblies are arranged in the stator assemblies and used for moving and rotating;

the bearing sleeve and the ball bearing are respectively arranged at two ends of the rotor assembly, and the inner surface of the bearing sleeve is attached to the outer surface of the ball bearing;

and a damping silica gel sleeve is arranged in the bearing sleeve.

2. A brushless electric machine for use on an electric wind tunnel according to claim 1, wherein the stator assembly comprises a stator core and a stator encapsulation; one side of stator rubber coating is equipped with a plurality of PIN needles, a plurality of PIN needles are inserted and are parallel to each other around the outer edge of stator rubber coating, a plurality of PIN needles are towards one side of back support, stator core cover is established the surface of stator rubber coating.

3. A brushless motor for use in an electric wind tunnel according to claim 2, wherein said rotor assembly comprises a hub, copper rings, magnets and spring members;

the center of the blade, the ball bearing, the copper ring, the magnet, the short copper ring, the spring piece, the stator rubber coating and the rear bracket are all provided with through holes with the same caliber, and the axle center sequentially passes through the through holes of the blade, the ball bearing, the stator rubber coating, the copper ring, the magnet, the short copper ring, the spring piece, the ball bearing and the rear bracket and then extends out of the outside;

the blade with from outside to interior order is ball bearing and copper ring between the stator rubber coating, the magnetite is located the center department of stator rubber coating, the copper ring is connected in the one end of magnetite, the other end of magnetite with short copper ring is connected, be between short copper ring, the ball bearing for the sandwich structure of spring spare.

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