CN221263473U

CN221263473U - Brush motor structure of underwater propeller

Info

Publication number: CN221263473U
Application number: CN202323055115.4U
Authority: CN
Inventors: 胡纬骥; 李广磊; 陈志广; 李浩瀚
Original assignee: Suzhou Baisheng Power Technology Co ltd
Current assignee: Suzhou Baisheng Power Technology Co ltd
Priority date: 2023-11-13
Filing date: 2023-11-13
Publication date: 2024-07-02
Anticipated expiration: 2033-11-13

Abstract

The embodiment of the application provides a brush motor structure of an underwater propeller, which comprises an underwater shell and a brush motor arranged in the underwater shell, wherein the brush motor comprises an inner rotor assembly and an outer stator assembly; the inner rotor assembly comprises a motor rotating shaft, a rotor iron core, a winding and a commutator; the outer stator assembly comprises a magnetic conduction ring, a magnetic shoe and an electric brush; the magnetic conduction ring is fixedly embedded into the inner side wall of the underwater shell, the magnetic shoe is fixedly adhered to the inner side wall of the magnetic conduction ring, and the magnetic shoe is supported and magnetically conducted by the magnetic conduction ring, so that the underwater shell is manufactured without adopting extra magnetic conduction materials, the integral gram weight of the motor can be effectively reduced, and the anti-corrosion effect of the underwater shell can be ensured.

Description

Brush motor structure of underwater propeller

Technical Field

The utility model relates to the technical field of underwater propellers, in particular to a brush motor structure of an underwater propeller.

Background

Currently, the underwater propulsion of the electric outboard engine and the top flow engine is mostly powered by an underwater motor, the motor comprises a brushless structure and a brush structure, and the underwater propulsion is mostly driven by the brush motor in consideration of cost factors. The rotor part of the common brush motor structure generally comprises rotor iron cores, windings, commutators and other parts, the stator part comprises magnetic shoes, electric brushes and other parts, the magnetic shoes are required to be adhered to a machine shell, the machine shell is used for providing support and fixation for the magnetic shoes on one hand and is also used for magnetic conduction on the other hand, and therefore the machine shell is required to be made of magnetic conduction materials such as iron and the like, the underwater anticorrosion effect is poor, and the whole motor is heavy.

Disclosure of utility model

The embodiment of the utility model provides a brush motor structure of an underwater propeller, which aims to solve the technical problems that the existing brush motor structure adopts a magnetic conduction shell, has poor underwater corrosion resistance and causes the whole motor to be heavy.

The brush motor structure of the underwater propeller provided by the embodiment of the utility model comprises an underwater shell and a brush motor arranged in the underwater shell, wherein the brush motor comprises an inner rotor assembly and an outer stator assembly; the inner rotor assembly comprises a motor rotating shaft, a rotor iron core fixedly sleeved on the motor rotating shaft, a winding wound on the rotor iron core and a commutator electrically connected with the winding, and the commutator is fixedly sleeved on the motor rotating shaft; the outer stator assembly comprises a magnetic conduction ring, magnetic shoes and electric brushes, the magnetic conduction ring is fixedly embedded into the inner side wall of the underwater shell, the magnetic shoes are sleeved on the periphery of the winding at intervals and are fixedly adhered to the inner side wall of the magnetic conduction ring, and the electric brushes are fixedly arranged on the outer side of the commutator and are in sliding contact with the commutator.

Optionally, the underwater housing includes a casing, a front cover, and a rear cover, where the front cover and the rear cover are respectively connected to the front and rear ends of the casing in a sealing manner, so that the front cover, the casing, and the rear cover can form a sealed housing together; the magnetic conduction ring is fixedly embedded into the inner side wall of the shell; the front cover and the rear cover are oppositely provided with bearings for mounting the motor rotating shaft.

Optionally, the magnetic ring is fixedly embedded to the inner side wall of the casing through a hot sheathing process.

Optionally, a limiting step for positioning the magnetic ring is formed on the inner side wall of the casing.

Optionally, the magnetic ring is fixedly embedded into the inner side wall of the casing when the casing is cast and molded.

Optionally, a groove or knurling is formed on the outer side wall of the magnetic conduction ring.

Optionally, the magnetic ring is made of iron, and the underwater housing is made of aluminum.

The embodiment of the utility model has the following beneficial effects: the magnetic conducting ring is fixedly embedded on the inner side wall of the underwater shell, the magnetic conducting ring is directly used for supporting and conducting magnetic to the magnetic shoe, the underwater shell is manufactured without adopting extra magnetic conducting materials, the integral gram weight of the motor can be effectively reduced, and the anti-corrosion effect of the underwater shell can be ensured.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

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

FIG. 2 is a schematic structural diagram of a magnetic flux ring according to an embodiment of the present utility model;

The figures represent the numbers:

1. A motor shaft; 2. a rotor core; 3. a commutator; 4. a magnetic conductive ring; 5. a magnetic shoe; 6. a brush; 7. a housing; 8. a front cover; 9. a rear cover; 10. a bearing; 11. a limit step; 12. a groove; 13. and (5) knurling.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to fall within the scope of the utility model. Furthermore, it should be understood that the detailed description is presented herein for purposes of illustration and description only, and is not intended to limit the utility model. In the present utility model, unless otherwise indicated, terms such as "front" and "rear" and the like generally refer to the front and rear of the device in actual use or in an operating state, specifically, the front end of the underwater housing is referred to as the front, and the rear end of the propeller is referred to as the rear; while "inner" and "outer" are for the outline of the device.

Referring to fig. 1, an embodiment of the present utility model provides a brush motor structure of an underwater propeller, including an underwater housing and a brush motor disposed in the underwater housing. The brush motor comprises an inner rotor assembly and an outer stator assembly; the inner rotor assembly comprises a motor rotating shaft 1, a rotor iron core 2, a winding (not shown in the figure) and a commutator 3, wherein the rotor iron core 2 is fixedly sleeved on the motor rotating shaft 1, the winding is wound on the rotor iron core 2, and the commutator 3 is fixedly sleeved on the motor rotating shaft 1 and is electrically connected with the winding. The outer stator assembly comprises a magnetic conduction ring 4, a magnetic shoe 5 and an electric brush 6, wherein the magnetic conduction ring 4 is fixedly embedded into the inner side wall of the underwater shell, and the magnetic shoe 5 is sleeved on the periphery of the winding at intervals and is adhered and fixed to the inner side wall of the magnetic conduction ring 4; the brush 6 is fixedly arranged on the outer side of the commutator 3 and is in sliding contact with the commutator 3 so as to match the commutator 3 to realize commutation.

According to the embodiment of the utility model, the magnetic shoe 5 is directly supported and magnetically conducted by the magnetic conduction ring 4, so that the underwater shell is not required to be made of a magnetically conducting material, the integral gram weight of the motor can be effectively reduced, and the anti-corrosion effect of the underwater shell can be ensured. For reference, in the embodiment of the utility model, the magnetic ring 4 is made of iron, and the underwater shell is made of aluminum; of course, the magnetic ring 4 can also be made of other materials with better magnetic conductivity, and the underwater shell can also be made of other materials with light weight and better corrosion resistance, and the embodiment of the utility model is not limited too much.

Further, the underwater housing in the embodiment of the present utility model includes a housing 7, a front cover 8 and a rear cover 9, where the front cover 8 and the rear cover 9 are respectively and hermetically connected to the front and rear ends of the housing 7, so that the front cover 8, the housing 7 and the rear cover 9 can together form a sealed housing for providing a sealed waterproof space for the brush motor under water. Bearings 10 for mounting the motor rotating shaft 1 are oppositely arranged on the front cover 8 and the rear cover 9; the magnetic ring 4 is fixedly embedded into the inner side wall of the casing 7.

As some alternative embodiments, the magnetic conducting ring 4 may be fixedly embedded to the inner side wall of the casing 7 through a hot-set process, and the casing 7 is heated and expanded, and then the magnetic conducting ring 4 is embedded into the casing 7. In order to facilitate positioning of the magnetic ring 4, a limiting step 11 may be formed on the inner side wall of the housing 7, and the limiting step 11 is abutted against the end surface of the magnetic ring 4 to limit movement of the magnetic ring 4. Or the magnetic ring 4 can be directly and fixedly embedded into the inner side wall of the shell 7 when the shell 7 is cast; because the magnetic conduction ring 4 is directly embedded in casting molding, a groove 12 or a knurl 13 (shown in fig. 2) can be formed on the outer side wall of the magnetic conduction ring 4, and the outer side wall of the magnetic conduction ring 4 and the inner side wall of the casing 7 are meshed and fixed through the groove 12 or the knurl 13, so that the magnetic conduction ring 4 can be effectively prevented from being shifted and loosened.

The principles and embodiments of the present utility model have been described herein with reference to specific examples, the description of the above examples is only for aiding in understanding the technical solution of the present utility model and its core ideas; those of ordinary skill in the art will appreciate 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.

Claims

1. The utility model provides a brush motor structure of underwater propulsion ware, includes the casing and sets up the brush motor in the casing under water, its characterized in that: the brushed motor comprises an inner rotor assembly and an outer stator assembly; the inner rotor assembly comprises a motor rotating shaft, a rotor iron core fixedly sleeved on the motor rotating shaft, a winding wound on the rotor iron core and a commutator electrically connected with the winding, and the commutator is fixedly sleeved on the motor rotating shaft; the outer stator assembly comprises a magnetic conduction ring, magnetic shoes and electric brushes, the magnetic conduction ring is fixedly embedded into the inner side wall of the underwater shell, the magnetic shoes are sleeved on the periphery of the winding at intervals and are fixedly adhered to the inner side wall of the magnetic conduction ring, and the electric brushes are fixedly arranged on the outer side of the commutator and are in sliding contact with the commutator.

2. The brush motor structure of an underwater propeller of claim 1 wherein: the underwater shell comprises a shell, a front cover and a rear cover, wherein the front cover and the rear cover are respectively connected to the front end and the rear end of the shell in a sealing way, so that the front cover, the shell and the rear cover can form a sealing shell together; the magnetic conduction ring is fixedly embedded into the inner side wall of the shell; the front cover and the rear cover are oppositely provided with bearings for mounting the motor rotating shaft.

3. A brush motor structure for an underwater propeller as set forth in claim 2, wherein: the magnetic conduction ring is fixedly embedded into the inner side wall of the shell through a hot jacket process.

4. A brush motor structure of an underwater propeller as set forth in claim 3, wherein: and a limiting step for positioning the magnetic conducting ring is formed on the inner side wall of the shell.

5. A brush motor structure for an underwater propeller as set forth in claim 2, wherein: the magnetic ring is fixedly embedded into the inner side wall of the shell when the shell is cast and molded.

6. The brush motor structure of an underwater propulsor of claim 5, wherein: the outer side wall of the magnetic conduction ring is provided with grooves or knurling.

7. A brush motor construction for an underwater vehicle according to any of claims 1-6, wherein: the material of the magnetic conduction ring is iron, and the material of the underwater shell is aluminum.