CN210839171U - Brushless motor wear-resistant rotor structure - Google Patents

Abstract

The utility model discloses a wear-resisting rotor structure of brushless motor, including shell structure, rotor main part and dust removal structure, shell structure includes casing, front end housing and fan casing, the fixed front end housing that is provided with of one end of casing, the fixed fan casing that is provided with of one end that the front end housing was kept away from to the casing, the cavity has been seted up in the casing, the casing is located the cavity and rotates through the bearing and be provided with the rotor main part, the outside that the front end housing extended to the casing is passed to the one end of rotor main part. The utility model discloses a fixed fan that is provided with in the one end of rotor main part, then the center department at the fan casing rotates through the pivot and is provided with the flabellum, still is provided with the brush in the other end of pivot is fixed, rotates through the rotor and can drive the fan and rotate to produce the air current and can drive the flabellum and rotate, drive the brush at last again and be circular motion, can make the brush wipe the dust on the filter screen of the fan casing outside, thereby keep the good ventilation radiating effect of motor.

Description

Brushless motor wear-resistant rotor structure

technical field

The utility model relates to the technical field of motor equipment, in particular to a wear-resistant rotor structure of a brushless motor.

Background technique

Motor refers to an electromagnetic device that realizes the conversion or transfer of electrical energy according to the law of electromagnetic induction, or converts one form of electrical energy into another form of electrical energy. Electric motors convert electrical energy into mechanical energy (commonly known as motors), and generators convert mechanical energy into electrical energy. Motors are represented by the letter "M" in the circuit. Its main function is to generate driving torque as a power source for electrical appliances or various machinery. The motor consists of two parts, the rotor and the stator, which are used to realize the conversion device between electrical energy and mechanical energy and mechanical energy and electrical energy. The rotor of the motor is the rotating part of the motor in popular terms.

Although most motors are equipped with a fan cover, and the fan cover is usually equipped with a filter screen, when the motor is used for a long time, a lot of dust will accumulate on the filter screen of the fan cover, which will affect the ventilation of the fan cover. This affects the cooling effect of the motor.

Utility model content

The purpose of the present invention is to provide a brushless motor wear-resistant rotor structure to solve the above-mentioned problems in the background art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: a brushless motor wear-resistant rotor structure, including a casing structure, a rotor main body and a dust removal structure, the casing structure includes a casing, a front end cover and a fan cover, the casing One end of the body is fixedly provided with a front end cover, one end of the casing away from the front end cover is fixedly provided with a fan cover, a cavity is opened in the casing, and the casing is located in the cavity to rotate with a bearing to set the rotor body, so One end of the rotor body extends to the outside of the casing through the front end cover, the other end of the rotor body is located in the fan cover, the dust removal structure includes a fan, a fan blade and a brush, and the rotor body is located at one end of the fan cover and is fixed A fan is sleeved, a rotating shaft is rotatably disposed at the center of the fan cover, a fan blade is fixedly sleeved at one end of the rotating shaft inside the fan cover, and a brush is fixedly sleeved at one end of the rotating shaft outside the fan cover.

Preferably, the diameter of the fan is larger than the diameter of the fan blade, so that the fan blade can be driven to rotate when the fan rotates.

Preferably, holes are uniformly opened in the fan cover, and a filter screen is fixedly arranged in the holes.

Preferably, the outer side of the fan cover is provided with an annular chute, and the end of the brush away from the rotating shaft is in a sliding connection with the annular chute.

Preferably, a sponge pad is fixed on the inner side of the brush to improve the water absorption and dust removal effects of the brush.

Compared with the prior art, the beneficial effects of the present utility model are:

1. The utility model divides the casing structure into three parts: the casing, the front end cover and the fan cover. One end of the casing is fixedly provided with a front end cover, and the other end of the casing is fixedly provided with a fan cover. When a fault occurs in the motor, A certain part of the casing can be opened according to the location of the fault, which is convenient for installation and disassembly, thus facilitating maintenance;

2. In the present invention, a fan is also fixedly sleeved at one end of the rotor main body. The rotation of the rotor main body can drive the fan to rotate, so as to dissipate heat inside the motor, and then a rotating shaft is rotated at the center of the fan cover, and one end of the rotating shaft is fixed. The fan blade is sleeved, and the other end of the rotating shaft is fixedly sleeved with a brush. When the fan rotates, the generated airflow drives the fan blade to rotate, so as to drive the brush to make a circular motion. The brush can wipe the dust on the fan cover filter while rotating. It can increase the ventilation of the fan cover, thereby improving the heat dissipation effect inside the motor.

Description of drawings

Fig. 1 is the overall structure schematic diagram of the present utility model;

Fig. 2 is the main structure diagram of the rotor of the utility model;

FIG. 3 is a front view of the structure of the fan cover of the present invention.

In the figure: 1-shell; 2-front cover; 3-fan cover; 301-hole; 302-filter; 303-ring chute; 4-rotor body; 5-fan; 6-fan blade; 601-rotating shaft ; 7 - Brushes.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the implementations. example. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

1-3, the present utility model provides a technical solution: a brushless motor wear-resistant rotor structure, including a housing structure, a rotor main body 4 and a dust removal structure, the housing structure includes a housing 1, a front end cover 2 and Fan cover 3, one end of the casing 1 is fixedly provided with a front end cover 2, and one end of the casing 1 away from the front end cover 2 is fixedly provided with a fan cover 3, a cavity is opened in the casing 1, and the casing The body 1 is located in the cavity and is provided with a rotor body 4 that rotates through a bearing. One end of the rotor body 4 extends through the front end cover 2 to the outside of the housing 1, and the other end of the rotor body 4 is located in the fan cover 3, so The dust removal structure includes a fan 5, a fan blade 6 and a brush 7. The rotor body 4 is located at one end of the fan cover 3 and is fixedly sleeved with the fan 5. The center of the fan cover 3 is rotatably provided with a rotating shaft 601. The rotating shaft 601 One end inside the fan cover 3 is fixedly sleeved with a fan blade 6 , and one end of the rotating shaft 601 outside the fan cover 3 is fixedly sleeved with a brush 7 .

The diameter of the fan 5 is larger than the diameter of the fan blade 6, so that the fan blade 6 can be driven to rotate when the fan 5 rotates; the fan cover 3 is evenly provided with holes 301, and a filter screen is fixed in the hole 301 302, to prevent dust from entering into the fan cover 3 through the holes 301; the outer side of the fan cover 3 is provided with an annular chute 303, and the end of the brush 7 away from the rotating shaft 601 is slidingly connected with the annular chute 303, which improves the performance. Stabilizing effect of the structure; the inner side of the brush 7 is fixedly provided with a sponge pad, which is used to improve the water absorption and dust removal effect of the brush.

Working principle: The utility model divides the shell structure into three parts: shell 1, front cover 2 and fan cover 3. One end of shell 1 is fixed with front cover 2, and the other end of shell 1 is fixed with fan cover 3. , when a fault occurs in the motor, a certain part of the casing can be opened according to the position of the fault, which is convenient for installation and disassembly, thereby facilitating maintenance; The fan 5 is driven to rotate, so as to dissipate heat inside the motor, and then a rotating shaft 601 is rotated at the center of the fan cover 3. One end of the rotating shaft 601 is fixedly sleeved with the fan blade 6, and the other end of the rotating shaft 601 is fixedly sleeved with a brush 7. Through the rotation of the fan 5, the generated airflow drives the fan blades 6 to rotate, thereby driving the brush 7 to make a circular motion. The brush 7 can wipe off the dust on the filter screen of the fan cover 3 while rotating, which can increase the ventilation of the fan cover 3, thereby Improve the heat dissipation effect inside the motor.

It should be noted that, in this document, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any relationship between these entities or operations. any such actual relationship or sequence exists. Moreover, the terms "comprising", "comprising" or any other variation thereof are intended to encompass a non-exclusive inclusion such that a process, method, article or device comprising a list of elements includes not only those elements, but also includes not explicitly listed or other elements inherent to such a process, method, article or apparatus.

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

Claims (5)

1. Brushless motor wear-resisting rotor structure, including shell structure, rotor subject (4) and dust removal structure, its characterized in that: the shell structure comprises a shell (1), a front end cover (2) and a fan cover (3), wherein the front end cover (2) is fixedly arranged at one end of the shell (1), the fan cover (3) is fixedly arranged at one end, far away from the front end cover (2), of the shell (1), a cavity is formed in the shell (1), the shell (1) is positioned in the cavity and is provided with a rotor main body (4) in a rotating mode through a bearing, one end of the rotor main body (4) penetrates through the front end cover (2) and extends to the outside of the shell (1), the other end of the rotor main body (4) is positioned in the fan cover (3), the dust removal structure comprises a fan (5), fan blades (6) and a brush (7), the fan (5) is fixedly connected to one end, positioned on the fan cover (3), of the rotor main body (4), and a rotating shaft (601) is rotatably arranged at, the fixed cover of pivot (601) one end that is located fan casing (3) has connect flabellum (6), the fixed cover of the one end that pivot (601) is located outside fan casing (3) has connect brush (7).

2. The wear-resistant rotor structure of a brushless motor of claim 1, wherein: the diameter of the fan (5) is larger than that of the fan blades (6), so that the fan blades (6) can be driven to rotate when the fan (5) rotates.

3. The wear-resistant rotor structure of a brushless motor of claim 1, wherein: holes (301) are uniformly formed in the fan cover (3), and filter screens (302) are fixedly arranged in the holes (301).

4. The wear-resistant rotor structure of a brushless motor of claim 1, wherein: annular sliding grooves (303) are formed in the outer side of the fan cover (3), and one end, far away from the rotating shaft (601), of the brush (7) is in sliding connection with the annular sliding grooves (303).

5. The wear-resistant rotor structure of a brushless motor of claim 1, wherein: the sponge mat is fixedly arranged on the inner side of the brush (7) and used for improving the water absorption and dust removal effects of the brush.

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