CN211629942U

CN211629942U - High efficiency flat brushless motor

Info

Publication number: CN211629942U
Application number: CN202020456918.8U
Authority: CN
Inventors: 林楚辉
Original assignee: Jinba Intelligent Technology Co ltd
Current assignee: Jinba Intelligent Technology Co ltd
Priority date: 2020-04-01
Filing date: 2020-04-01
Publication date: 2020-10-02
Anticipated expiration: 2030-04-01

Abstract

The utility model relates to a high efficiency flat brushless motor, including front end housing, rear end housing, pivot, stator chip and rotor, front end housing, rear end housing internally mounted stator chip, stator chip comprises annular stator yoke portion and a plurality of stator tooth portion, stator chip internally mounted rotor, and the rotor comprises rotor chip, magnetic shoe and protection magnetic ring, and the motor body total height is H, and stator chip external diameter is D, and the external diameter of the biggest of rotor is D, and H, D, D value ranges satisfy: H/D =0.6 ~ 1.0, D/D =0.56 ~ 0.8, optimize the parameter ratio of motor overall height H, stator chip maximum outer diameter D, rotor maximum outer diameter D, when satisfying the low, flat requirement of motor overall height, compromise the parameter value of stator chip maximum outer diameter, rotor maximum outer diameter simultaneously, accomplish the flat design, power is big, efficient, the noise is little, accords with domestic appliance's operation requirement.

Description

High efficiency flat brushless motor

Technical Field

The utility model relates to a motor field, concretely relates to high efficiency flat brushless motor.

Background

In the prior art, household appliances such as juice makers, soymilk makers, juicers, food processors and the like are motors serving as power output devices, and the motors need to be small and have high power to meet power requirements due to the design space limitation of the appliances. The motor that current fruit juice mixer, the soybean milk machine, the juice extractor, cooking machine used is because of being restricted to inside stator, rotor cooperation structure, motor body highly is about 95 ~ 105mm, can not accomplish to be lower in order to practice thrift the space, but blind unilateral pursuit motor body highly minimize, do not consider its and stator chip maximum external diameter, the maximum external diameter of rotor is relevant, the noise is big when can appearing high-speed rotation, the serious phenomenon of vibration, eccentric rotation appears, it is unstable, bad phenomena such as off normal, lead to the pivot can not really accomplish high-speed rotation and influence power output.

SUMMERY OF THE UTILITY MODEL

There is the defect to prior art, the utility model provides a high efficiency flat brushless motor has advantages such as structural parameter reasonable in design, the noise is low, high efficiency, pivot are rotatory steady, concrete technical scheme as follows:

a high-efficiency flat brushless motor comprises a front end cover, a rear end cover, a rotating shaft, stator chips and a rotor, wherein two ends of the rotating shaft are rotatably arranged at the center of the front end cover and the center of the rear end cover through bearings, the front end cover and the side of the rear end cover are connected into a whole through fasteners, the stator chips are arranged in the front end cover and the rear end cover, the stator chips are composed of an annular stator yoke and a plurality of stator teeth, the stator teeth are positioned at the inner side of the stator yoke, the stator teeth are circumferentially arranged around the central shaft of the stator chips, a stator tooth space is formed between every two adjacent stator teeth, the rotor is arranged in the stator chips, the rotor is composed of rotor chips, magnetic shoes and magnetic protection rings, the rotating shaft is fixedly sleeved with the rotor chips, a plurality of tip parts are arranged on the outer peripheral side of the rotor chips, the tip, protect the magnetic ring suit in the magnetic shoe outside, motor body overall height is H, and stator chip maximum external diameter is D, and the maximum external diameter of rotor is D, and H, D, D value range satisfies: H/D =0.6 ~ 1.0, D/D =0.56 ~ 0.8.

As a preferred scheme of the utility model, the upper bracket is installed at the front end housing rear, and the lower carriage is installed in rear end housing the place ahead, and in upper bracket, the lower carriage cartridge stator tooth's socket, coil winding stator tooth portion.

As the utility model discloses a preferred scheme, upper bracket the place ahead installation hall board, power cord and signal line are outwards drawn forth to the hall board.

As an optimal solution of the utility model, go up the fixed suit pivot of stabilizer ring and be located rotor chip the place ahead, the fixed suit pivot of lower stabilizer ring is located the rotor chip rear.

As an optimized proposal of the utility model, the upper balance ring and the lower balance ring are provided with a plurality of fan-shaped grooves which are arranged in a circumference way, and the fan-shaped grooves are distributed from inside to outside.

The utility model has the advantages that: the parameter ratio of the total height H of the motor, the maximum outer diameter D of the stator chip and the maximum outer diameter D of the rotor is optimized, when the requirement of the total height of the motor for short and flat height is met, the parameter values of the maximum outer diameter of the stator chip and the maximum outer diameter of the rotor are considered, the flat design is achieved, the power is high, the efficiency is high, the noise is low, and the using requirement of household appliances is met.

Drawings

Fig. 1 is an exploded view of the present invention;

FIG. 2 is a structural sectional view of the present invention;

fig. 3 is a front view of the present invention.

Detailed Description

The following description of the embodiments of the present invention will be made with reference to the accompanying drawings:

in the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the indicated position or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood as appropriate by those of ordinary skill in the art.

As shown in fig. 1 to 3, a high-efficiency flat brushless motor comprises a front end cover 1, a rear end cover 2, a rotating shaft 3, a stator chip 4 and a rotor, wherein two ends of the rotating shaft 3 are rotatably mounted at the center of the front end cover 1 and the center of the rear end cover 2 through bearings, the sides of the front end cover 1 and the rear end cover 2 are connected into a whole through fasteners, the stator chip 4 is mounted inside the front end cover 1 and the rear end cover 2, the stator chip 4 is composed of an annular stator yoke 41 and a plurality of stator teeth 42, the stator teeth 42 are located inside the stator yoke 41, the stator teeth 42 are circumferentially arranged around the central axis of the stator chip 4, a tooth space stator is formed between two adjacent stator teeth 42, the rotor is mounted inside the stator chip 4, the rotor is composed of a rotor chip 51, a magnetic shoe 52 and a magnetic protection ring 53, the rotating shaft 3 is fixedly sleeved inside the rotor chip 51, a plurality of tip parts 54 are arranged, form the rotor groove between two adjacent cusp portions 54, in the rotor groove was inlayed to magnetic shoe 52, protected the magnetic ring suit in the magnetic shoe 52 outside, motor body overall height was H, and stator chip maximum external diameter was D, and the maximum external diameter of rotor is D (be rotor chip 51, magnetic shoe 52, protect the thickness sum of magnetic ring 53), and H, D, D value range satisfies: H/D = 0.6-1.0, D/D = 0.56-0.8, the flat design is achieved, the power is high, the efficiency is high, the noise is low, and the use requirements of household appliances are met.

Specifically, an upper support 6 is installed behind a front end cover 1, a lower support 7 is installed in front of a rear end cover 2, the upper support 6 and the lower support 7 are inserted into a stator tooth groove, a coil winding 8 is wound on a stator tooth part, a Hall plate 9 is installed in front of the upper support 6, a power line and a signal line are led out of the Hall plate 9, and the Hall plate 9 is beneficial to controlling the brushless motor.

Specifically, the upper balance ring 10 is fixedly sleeved with the rotating shaft 3 and is positioned in front of the rotor chip 51, the lower balance ring 11 is fixedly sleeved with the rotating shaft 3 and is positioned behind the rotor chip 51, the upper balance ring 10 and the lower balance ring 11 are provided with a plurality of sector-shaped grooves which are circumferentially arranged, the sector-shaped grooves are distributed from inside to outside, and counter weights are added into the sector-shaped grooves in the upper balance ring 10 or the lower balance ring 11 to ensure balance, so that the improvement of the rotating stability is facilitated.

The above description is provided for the purpose of describing the present invention in more detail with reference to the preferred embodiments, and it should not be construed that the present invention is limited to these descriptions, and it will be apparent to those skilled in the art that the present invention can be implemented in many ways without departing from the spirit and scope of the present invention.

Claims

1. A high efficiency flat brushless motor characterized in that: the motor comprises a front end cover, a rear end cover, a rotating shaft, a stator chip and a rotor, wherein two ends of the rotating shaft are rotatably arranged at the center of the front end cover and the center of the rear end cover through bearings, the front end cover and the side of the rear end cover are connected into a whole through fasteners, the stator chip is arranged inside the front end cover and the rear end cover and consists of an annular stator yoke part and a plurality of stator tooth parts, the stator tooth parts are positioned inside the stator yoke part, the stator tooth parts are arranged around the circumference of a central shaft of the stator chip, a stator tooth groove is formed between every two adjacent stator tooth parts, the rotor is arranged inside the stator chip and consists of a rotor chip, a magnetic shoe and a magnetic protecting ring, the rotating shaft is fixedly sleeved on the rotor chip, a plurality of tip parts are arranged on the outer circumferential side of the rotor chip, the tip parts are arranged around the circumference of the, the maximum outer diameter of the stator chip is D, the maximum outer diameter of the rotor is D, and the value range of H, D, D meets the following requirements: H/D =0.6 ~ 1.0, D/D =0.56 ~ 0.8.

2. A high efficiency flat brushless electric machine according to claim 1, wherein: an upper support is arranged behind the front end cover, a lower support is arranged in front of the rear end cover, the upper support and the lower support are inserted into stator tooth grooves, and the coil windings are wound on the stator tooth parts.

3. A high efficiency flat brushless electric machine according to claim 2, wherein: the Hall plate is arranged in front of the upper support, and a power line and a signal line are led out of the Hall plate.

4. A high efficiency flat brushless electric machine according to claim 1, wherein: the upper balance ring is fixedly sleeved with the rotating shaft and is positioned in front of the rotor chip, and the lower balance ring is fixedly sleeved with the rotating shaft and is positioned behind the rotor chip.

5. A high efficiency flat brushless motor as claimed in claim 4, wherein: the upper balance ring and the lower balance ring are provided with a plurality of sector grooves which are circumferentially arranged, and the sector grooves are distributed from inside to outside.