CN219018561U

CN219018561U - Permanent magnet DC brushless motor rotor

Info

Publication number: CN219018561U
Application number: CN202223337119.7U
Authority: CN
Inventors: 吉星; 丁本元; 魏善干
Original assignee: Changzhou Dongben Drive Technology Co ltd
Current assignee: Changzhou Dongben Drive Technology Co ltd
Priority date: 2022-12-14
Filing date: 2022-12-14
Publication date: 2023-05-12
Anticipated expiration: 2032-12-14

Abstract

The utility model discloses a permanent magnet direct current brushless motor rotor, relates to the technical field of motor rotors, and solves the problems that a large amount of dust is easily brought into a motor and adhered to the inside of the motor in the process of entering air flow, so that the wear degree of the motor is increased, and the cleaning difficulty is increased. A permanent magnet dc brushless motor rotor comprising: a rotor body; the rotor body adopts a cylindrical structure, and one side of the rotor body is provided with a circular through groove in a ring array shape; the rear side of the rotor body is fixedly provided with a rear shaft; the rear shaft adopts a cylindrical structure, and a spring structure is sleeved on the outer side of the rear shaft; the rear axle also includes: the support rods are of rectangular rod structures, and four groups of support rods are arranged in total; the filter cover is fixedly sleeved on the outer sides of the four groups of support rods; the dust is prevented from entering the motor shell, the abrasion degree of the rotor body is reduced, the energy consumption of the motor is reduced, and the cleaning difficulty is reduced.

Description

Permanent magnet DC brushless motor rotor

Technical Field

The utility model belongs to the technical field of motor rotors, and particularly relates to a permanent magnet direct current brushless motor rotor.

Background

The motor rotor is a rotating component in the motor. The motor consists of a rotor and a stator, and is a conversion device for realizing electric energy and mechanical energy and electric energy. The motor rotor is divided into a motor rotor and a generator rotor.

The existing motor rotor also has the following defects:

at present, in the working process of a motor rotor, air flow is introduced from a ventilation opening of a motor shell through a fan blade to dissipate heat, but in the air flow entering process, a large amount of dust is easily brought into the motor, and is mixed with lubricating oil and adhered to the inside of the motor, so that the abrasion degree of the motor is increased, the service life of the rotor is influenced, and the cleaning difficulty is increased.

Disclosure of Invention

In order to solve the technical problems, the utility model provides a permanent magnet direct current brushless motor rotor, which solves the problems that a large amount of dust is easily brought into the motor in the process of entering air flow, is mixed with lubricating oil and adhered to the inside of the motor, increases the abrasion degree of the motor, influences the service life of the rotor and increases the cleaning difficulty in the background art.

The utility model discloses a permanent magnet direct current brushless motor rotor, which is characterized by comprising the following specific technical means:

a permanent magnet dc brushless motor rotor comprising: a rotor body; the rotor body adopts a cylindrical structure, and one side of the rotor body is provided with a circular through groove in a ring array shape; the rear side of the rotor body is fixedly provided with a rear shaft; the rear shaft adopts a cylindrical structure, and a spring structure is sleeved on the outer side of the rear shaft; the rear axle also includes: the support rods adopt a rectangular rod structure, four groups of support rods are arranged in total, and the four groups of support rods are respectively arranged at the outer side of the rear end of the rear shaft in a ring-shaped array manner in a rotating manner; the filter cover is fixedly sleeved on the outer sides of the four groups of support rods.

Further, the rotor body further includes: the front shaft adopts a cylindrical structure and is fixedly arranged on the front side of the rotor body; the fan blade is arranged on the outer side of the front shaft through a key.

Further, the rear axle further includes: the gravity blocks are of cylindrical structures, four groups of gravity blocks are arranged in total, and the four groups of gravity blocks are respectively and rotatably arranged at the front ends of the four groups of support rods; the sliding ring adopts a circular structure and is arranged on the outer side of the rear shaft in a sliding way; the connecting rods adopt a rectangular rod structure, four groups of connecting rods are arranged in total, the four groups of connecting rods are respectively arranged on the outer sides of the sliding rings in a ring-shaped array in a rotating mode, and the other ends of the four groups of connecting rods are respectively connected with the four groups of supporting rods in a rotating mode.

Compared with the prior art, the utility model has the following beneficial effects:

through being provided with rear axle, the bracing piece, the filter mantle, gravity piece, slip ring and connecting rod, at the rotatory in-process of rear axle, it is rotatory to drive each group's bracing piece in step, under the effect of centrifugal force, make each group's gravity piece pull each group's bracing piece respectively and open to the outside, thereby the filter mantle outside the drive bracing piece opens, the cover is played in the rear side of rotor body, filter the air current that the motor housing vent entered, thereby further adsorb impurity such as dust in the air current in the outside of filter mantle, avoid the dust to enter into the inside of motor housing, and avoid the dust to cause the influence to the rotor body, reduce the degree of wear of rotor body, thereby reduce the energy consumption of motor, simultaneously in subsequent maintenance, change the clearance alright to the filter mantle, the degree of difficulty of clearance has been reduced.

Through being provided with rotor body, front axle and flabellum, at the rotatory in-process of front axle, synchronous drive flabellum is rotatory, and the air current that gets into through the flabellum drive motor housing rear side passes through the inside circular logical groove of rotor body to further dispel the heat to the rotor body, improved the radiating effect of rotor body, be favorable to prolonging the life of rotor body.

Drawings

Fig. 1 is a schematic overall axial view of the present utility model.

Fig. 2 is a schematic overall top view of the present utility model.

Fig. 3 is a schematic side view of the utility model in a disassembled state.

Fig. 4 is a schematic view of an isometric view of the present utility model in a disassembled state.

In the figure, the correspondence between the component names and the drawing numbers is:

1. a rotor body; 101. a front axle; 102. a fan blade; 2. a rear axle; 201. a support rod; 202. a filter cover; 203. a gravity block; 204. a slip ring; 205. and (5) connecting a rod.

Detailed Description

Embodiments of the present utility model are described in further detail below with reference to the accompanying drawings and examples. The following examples are illustrative of the utility model but are not intended to limit the scope of the utility model.

In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front," "rear," "head," "tail," and the like are used as an orientation or positional relationship based on that shown in the drawings, merely to facilitate description of the utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the utility model. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "connected," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Examples:

as shown in fig. 1 to 4:

the utility model provides a permanent magnet DC brushless motor rotor, comprising: a rotor body 1; the rotor body 1 adopts a cylindrical structure, and one side of the rotor body 1 is provided with a circular through groove in a ring array shape; the rear side of the rotor body 1 is fixedly provided with a rear shaft 2; the rear shaft 2 adopts a cylindrical structure, and a spring structure is sleeved on the outer side of the rear shaft 2; the rear axle 2 further comprises: the support rods 201, the support rods 201 adopt a rectangular rod structure, four groups of support rods 201 are arranged in total, and the four groups of support rods 201 are respectively arranged on the outer side of the rear end of the rear shaft 2 in a ring-shaped array manner in a rotating manner; the filter cover 202, the filter cover 202 is fixedly sleeved outside the four groups of support rods 201.

Wherein, rotor body 1 still includes: the front shaft 101, the front shaft 101 adopts a cylindrical structure, and the front shaft 101 is fixedly arranged on the front side of the rotor body 1; the fan blade 102, the fan blade 102 is installed on the outer side of the front shaft 101 by a key.

Through adopting above-mentioned technical scheme, at the rotatory in-process of front axle 101, synchronous drive flabellum 102 is rotatory, drives the circular logical groove of rotor body 1 inside through the air current that the motor casing rear side got into of flabellum 102 to further dispel the heat to rotor body 1, improved rotor body 1's radiating effect, be favorable to prolonging rotor body 1's life.

Wherein, rear axle 2 still includes: the gravity blocks 203, the gravity blocks 203 adopt a cylindrical structure, four groups of gravity blocks 203 are arranged in total, and the four groups of gravity blocks 203 are respectively and rotatably arranged at the front ends of the four groups of support rods 201; the sliding ring 204, the sliding ring 204 adopts a circular ring structure, and the sliding ring 204 is arranged on the outer side of the rear axle 2 in a sliding way; the connecting rods 205, the connecting rods 205 adopt a rectangular rod structure, four groups of connecting rods 205 are arranged in total, the four groups of connecting rods 205 are respectively arranged on the outer side of the sliding ring 204 in a ring-shaped array in a rotating way, and the other ends of the four groups of connecting rods 205 are respectively connected with the four groups of supporting rods 201 in a rotating way.

Specific use and action of the embodiment:

according to the utility model, the rotor body 1 is arranged in the motor shell through the matching of the front shaft 101 and the rear shaft 2, the rear shaft 2 and the front shaft 101 are synchronously driven to rotate in the process of rotating the rotor body 1, the groups of supporting rods 201 are synchronously driven to rotate in the process of rotating the rear shaft 2, under the action of centrifugal force, the groups of gravity blocks 203 respectively pull the groups of supporting rods 201 to open outwards, so that the filter cover 202 outside the supporting rods 201 is driven to open, the cover is arranged at the rear side of the rotor body 1, the air flow entering through the ventilation opening of the motor shell is filtered, dust and other impurities in the air flow are further adsorbed at the outer side of the filter cover 202, the dust is prevented from entering the inside of the motor shell, the influence of the dust on the rotor body 1 is avoided, the abrasion degree of the rotor body 1 is reduced, the energy consumption of the motor is reduced, meanwhile, in the subsequent maintenance process of replacing and cleaning of the filter cover 202 is reduced, in the process of rotating the front shaft 101, the fan blades 102 are synchronously driven to rotate, the air flow entering at the rear side of the motor shell passes through the circular through the through-shaped through-groove of the rotor body 1, the rotor body 205 is further improved, the heat dissipation effect of the rotor body 205 is prolonged, the heat dissipation effect of the rotor body 1 is prolonged, the filter cover 2 is further is prolonged, the heat dissipation effect of the rotor body 2 is prolonged, and the filter cover is further is prolonged, and the filter cover is kept up by the filter cover 2 is driven, and the filter is further rotated.

The embodiments of the utility model have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the utility model in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments were chosen and described in order to best explain the principles of the utility model and the practical application, and to enable others of ordinary skill in the art to understand the utility model for various embodiments with various modifications as are suited to the particular use contemplated.

Claims

1. A permanent magnet dc brushless motor rotor comprising: a rotor body (1); the rotor body (1) adopts a cylindrical structure, and one side of the rotor body (1) is provided with a circular through groove in a penetrating mode in an annular array shape; a rear shaft (2) is fixedly arranged at the rear side of the rotor body (1); the rear shaft (2) adopts a cylindrical structure, and a spring structure is sleeved on the outer side of the rear shaft (2); the rear axle (2) further comprises: the support rods (201) are of rectangular rod structures, four groups of support rods (201) are arranged in total, and the four groups of support rods (201) are respectively arranged on the outer side of the rear end of the rear shaft (2) in a ring-shaped array in a rotating mode; the filter cover (202), the outside of four group's bracing piece (201) is located to filter cover (202) fixed cover.

2. A permanent magnet dc brushless motor rotor as claimed in claim 1, wherein: the rotor body (1) further comprises: the front shaft (101), the front shaft (101) adopts a cylindrical structure, and the front shaft (101) is fixedly arranged at the front side of the rotor body (1).

3. A permanent magnet dc brushless motor rotor as claimed in claim 2, wherein: the rotor body (1) further comprises: and the fan blades (102) are arranged on the outer side of the front shaft (101) through keys.

4. A permanent magnet dc brushless motor rotor as claimed in claim 1, wherein: the rear axle (2) further comprises: the gravity block (203), the gravity block (203) adopts a cylindrical structure, the gravity block (203) is provided with four groups, and the four groups of gravity blocks (203) are respectively and rotatably arranged at the front ends of the four groups of support rods (201).

5. A permanent magnet dc brushless motor rotor as defined in claim 4, wherein: the rear axle (2) further comprises: the sliding ring (204), the sliding ring (204) adopts a circular ring structure, and the sliding ring (204) is arranged on the outer side of the rear axle (2) in a sliding way.

6. A permanent magnet dc brushless motor rotor as defined in claim 5, wherein: the rear axle (2) further comprises: the connecting rods (205), the connecting rods (205) adopt a rectangular rod structure, four groups of connecting rods (205) are arranged in total, the four groups of connecting rods (205) are respectively arranged on the outer side of the sliding ring (204) in a ring-shaped array in a rotating mode, and the other ends of the four groups of connecting rods (205) are respectively connected with the four groups of supporting rods (201) in a rotating mode.