CN219760761U

CN219760761U - Brushless motor

Info

Publication number: CN219760761U
Application number: CN202321054564.4U
Authority: CN
Inventors: 蒋媛; 张秀香
Original assignee: Dongguan Yanou Power Technology Co ltd
Current assignee: Dongguan Yanou Power Technology Co ltd
Priority date: 2023-05-06
Filing date: 2023-05-06
Publication date: 2023-09-26
Anticipated expiration: 2033-05-06

Abstract

A brushless motor, characterized in that: the rotor comprises a shell (100), a front end cover (200) sealed at the front end of the shell (100), a rear end cover (300) sealed at the rear end of the shell (100), a rotor shaft (400) arranged in the shell (100), a rotor block (500) sleeved on the rotor shaft (400), a plurality of magnets (600) uniformly distributed on the outer circumferential surface of the rotor block (500) along the axial direction and a stator (700) sleeved on the rotor block (500), wherein the front end of the rotor shaft (400) is rotatably mounted on the front end cover (200) through a first bearing (401), and the rear end of the rotor shaft (400) is rotatably mounted on the rear end cover (300) through a second bearing (402). The balance blocks at the two ends of the rotor block are provided with the slots for inserting the magnets, so that the installation is convenient, the production efficiency is improved, the front end cover and the rear end cover are sealed at the front end and the rear end of the shell, water is prevented from entering the motor, the waterproof effect is good, and the service life of the brushless motor is ensured.

Description

Brushless motor

Technical Field

The present utility model relates to a brushless motor.

Background

Brushless motor is widely used in each production and life field because of possessing advantages such as good performance, efficient, reliability height, however, the magnet of brushless motor hardly installs fixedly, and production efficiency is lower, when being used for the wading occasion with brushless motor in addition, in order to guarantee that brushless motor and the equipment of installing brushless motor can long-term operation, brushless motor should have good waterproof performance, current brushless motor can't carry out waterproof use when using, and water enters into the motor inside easily and causes the damage to the motor.

Disclosure of Invention

Aiming at the defects in the prior art, the utility model aims to provide the brushless motor which is easy to install and good in waterproof effect.

In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:

the brushless motor comprises a shell, a front end cover sealed at the front end of the shell, a rear end cover sealed at the rear end of the shell, a rotor shaft arranged in the shell, a rotor block sleeved on the rotor shaft, a plurality of magnets uniformly distributed on the outer circumferential surface of the rotor block along the axial direction and a stator sleeved on the rotor block, wherein the front end of the rotor shaft is rotatably mounted on the front end cover through a first bearing, and the rear end of the rotor shaft is rotatably mounted on the rear end cover through a second bearing; the two ends of the rotor block are provided with a balance weight, and a plurality of inserting grooves for inserting magnets are formed in the end face, close to the rotor block, of the balance weight along the peripheral annular array.

Further, the width of the inserting groove is matched with the width of the magnet.

Further, one side of the balancing block, corresponding to the rotor block, is provided with a mounting portion, a plurality of first assembly holes are formed in the mounting portion along the outer circumference, second assembly holes corresponding to the first assembly holes are formed in the rotor shaft, and a plurality of machine screws are mounted in the corresponding first assembly holes and the second assembly holes to fix the rotor shaft and the balancing block together.

Further, a welding plate is arranged on one side of the rear end cover, which is close to the stator, and a male plug electrically connected with the stator and three female plugs connected with silica gel wires are arranged on the welding plate.

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

due to the adoption of the structural design, the slots for inserting the magnets are formed in the balance blocks at the two ends of the rotor block, installation is facilitated, production efficiency is improved, the front end cover and the rear end cover are sealed at the front end and the rear end of the shell, water is prevented from entering the motor, the waterproof effect is good, and the service life of the brushless motor is guaranteed.

Drawings

FIG. 1 is a schematic diagram of an exploded structure of an embodiment of the present utility model;

fig. 2 is a schematic cross-sectional structure of an embodiment of the present utility model.

The reference numerals in the figures are respectively:

100-shell, 200-front end cover, 300-rear end cover, 400-rotor shaft, 500-rotor block, 600-magnet, 700-stator, 800-balance block and 900-welding plate;

401-first bearing, 402-second bearing, 403-second mounting hole;

801-inserting grooves, 802-installing parts and 803-machine meter screws;

8021-first fitting hole;

901-male plug, 902-silicone wire, 903-female plug.

Detailed Description

The utility model is described in further detail below with reference to the accompanying drawings:

the embodiments described by referring to the drawings are exemplary and intended to be illustrative of the utility model and are not to be construed as limiting the utility model. In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a number", "a plurality" or "a plurality" is two or more, unless specifically defined otherwise. In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is less level than the second feature.

Examples

As shown in fig. 1, the high-power waterproof brushless motor of the present utility model comprises a housing 100, a front end cap 200 sealed at the front end of the housing 100, a rear end cap 300 sealed at the rear end of the housing 100, a rotor shaft 400 disposed in the housing 100, a rotor block 500 sleeved on the rotor shaft 400, six magnets 600 axially uniformly distributed on the outer circumference of the rotor block 500, and a stator 700 sleeved on the rotor block 500, wherein the front end of the rotor shaft 400 is rotatably mounted on the front end cap 200 through a first bearing 401, the rear end of the rotor shaft 400 is rotatably mounted on the rear end cap 300 through a second bearing 402, both ends of the rotor block 500 are provided with a balancing block 800, and a plurality of inserting grooves 801 for inserting the magnets 600 are disposed along a circumferential annular array near the end surface of the rotor block 500; the width of the inserting groove 801 is matched with the width of the magnet 600, and the magnet 600 is positioned through the inserting groove 801 by the structural design, so that the installation is convenient, and the production efficiency is improved; the front end cover 200 and the rear end cover 300 are sealed at the front end and the rear end of the shell 100, so that water is prevented from entering the motor, the waterproof effect is good, and the service life of the brushless motor is guaranteed.

As shown in fig. 1, a mounting portion 802 is disposed on a side of the balance block 800 opposite to the rotor block 500, a plurality of first mounting holes 8021 are disposed on the mounting portion 802 along an outer circumference, a plurality of second mounting holes 403 corresponding to the first mounting holes 8021 are disposed on the rotor shaft 500, and a plurality of machine screws 803 are mounted in the corresponding first mounting holes 8021 and the second mounting holes 403 to fix the rotor shaft 500 and the balance block 800 together.

A welding plate 900 is disposed on a side of the rear end cap 300 near the stator 700, and a male plug 901 electrically connected to the stator 700 and three female plugs 903 connected to the silica gel wires 902 are disposed on the welding plate 900.

In conclusion, the utility model solves the defects in the prior art through the structural design, and has the characteristics of reasonable design, high production efficiency, good waterproof effect and the like.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art will understand that; the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model.

In summary, the foregoing description is only of the preferred embodiments of the present utility model, and all equivalent changes and modifications made in accordance with the claims should be construed to fall within the scope of the utility model.

Claims

1. A brushless motor, characterized in that: the motor comprises a shell (100), a front end cover (200) sealed at the front end of the shell (100), a rear end cover (300) sealed at the rear end of the shell (100), a rotor shaft (400) arranged in the shell (100), a rotor block (500) sleeved on the rotor shaft (400), a plurality of magnets (600) uniformly distributed on the outer circumferential surface of the rotor block (500) along the axial direction and a stator (700) sleeved on the rotor block (500), wherein the front end of the rotor shaft (400) is rotatably arranged on the front end cover (200) through a first bearing (401), and the rear end of the rotor shaft (400) is rotatably arranged on the rear end cover (300) through a second bearing (402); two ends of the rotor block (500) are provided with a balance block (800), and a plurality of inserting grooves (801) for inserting the magnet (600) are formed in the end face, close to the rotor block, of the balance block (800) in an annular array along the periphery.

2. A brushless motor as claimed in claim 1, wherein: the width of the inserting groove (801) is matched with the width of the magnet (600).

3. A brushless motor as claimed in claim 2, wherein: the balance block (800) is provided with a mounting part (802) relative to one side of the rotor block (500), the mounting part (802) is provided with a plurality of first assembly holes (8021) along the outer circumference, the rotor shaft (400) is provided with second assembly holes (403) corresponding to the first assembly holes (8021), and a plurality of machine screws (803) are mounted in the corresponding first assembly holes (8021) and the second assembly holes (403) to fix the rotor shaft and the balance block together.

4. A brushless motor as claimed in claim 3, wherein: a welding plate (900) is arranged on one side of the rear end cover (300) close to the stator (700), and a male plug (901) electrically connected with the stator (700) and three female plugs (903) connected with silica gel wires (902) are arranged on the welding plate (900).