CN219086926U

CN219086926U - Motor protection cover

Info

Publication number: CN219086926U
Application number: CN202223309413.7U
Authority: CN
Inventors: 笪庆生
Original assignee: Yizhu Motor Suzhou Co ltd
Current assignee: Yizhu Motor Suzhou Co ltd
Priority date: 2022-12-09
Filing date: 2022-12-09
Publication date: 2023-05-26
Anticipated expiration: 2032-12-09

Abstract

The utility model belongs to the technical field of motor protection covers, in particular to a motor protection cover, which comprises a protection cover main body, wherein an inner cover is formed inside the protection cover main body, an axle hole is formed on the inner side of the protection cover main body, an inner notch is formed at the symmetrical end of the axle hole in the protection cover main body, an outer notch is formed on the inner side of the protection cover main body, which is positioned on the inner side of the inner cover.

Description

Motor protection cover

Technical Field

The utility model belongs to the technical field of motor protection covers, and particularly relates to a motor protection cover.

Background

With the increasing competition in the electric tool market, most electric tool motors are now being used for reducing labor cost and motor space, and the convenience and portability of the electric tools are being improved. The trend is that the internal space of the electric tool is more compact, and the motor assembly is more suitable for being separated and assembled, so that the motor assembly is more compact in structure and higher in integration degree, and is suitable for places with requirements on space volume. The split type motor is deviated from replacing a carbon brush, the service life of the brush motor is prolonged, the space of the existing split type motor is greatly reduced in structure, so that the motor is protected by the split type motor, the protection cover of the existing motor is also required to be greatly lifted, the structure of the protection cover of the existing motor is shown in fig. 1-2, the structure of the protection cover of the existing motor is integrally formed, the protection cover is hard-connected with the motor after being installed on the motor, and the motor can be directly influenced when the protection cover is pressed.

Disclosure of Invention

In order to solve the problems in the prior art, the utility model provides a motor protection cover, which has the characteristics of reducing loss in the production and transportation processes and saving cost.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the motor protection cover comprises a protection cover main body, an inner cover is formed inside the protection cover main body, a shaft hole is formed in the inner side of the protection cover main body, an inner notch is formed in the symmetrical end of the shaft hole in the protection cover main body, and an outer notch is formed in the inner side of the protection cover main body, which is located in the inner cover.

As a preferable technical scheme of the motor protection cover, one end of the inner groove opening is of an opening structure and is communicated with the shaft hole.

As a preferred technical scheme of the motor protection cover, the two outer notches are symmetrical, and the two inner notches are used as symmetry axes.

As a preferred technical scheme of the motor protection cover, the outer notch is of an arc-shaped structure and is concentric with the protection cover main body, the inner cover and the shaft hole.

As a preferable technical scheme of the motor protection cover, the widths of the inner notch and the outer notch are 1mm, wherein the inner diameter and the outer diameter of the outer notch are 9mm and 11mm respectively.

In a preferred embodiment of the motor protection cover according to the present utility model, the end portions of the inner ring on the side of the protection cover main body far from the inner cover and the inner ring on the side of the shaft hole near the inner cover are formed with chamfers.

Compared with the prior art, the utility model has the beneficial effects that: according to the utility model, the inner slot opening of the communicating structure is formed at the position of the shaft hole of the shield main body, the symmetrical outer slot opening is formed at the periphery of the shaft hole, the inner slot opening and the outer slot opening are matched to play a role in buffering and protecting the motor, and the motor is only provided with the inner slot opening and the outer slot opening at the position of the traditional shield inserted into the motor shaft, so that the motor protecting structure is simple in forming and convenient to process, and the cost is effectively controlled while the motor is better protected.

Drawings

The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model. In the drawings:

FIG. 1 is a schematic diagram of a prior art structure;

FIG. 2 is a schematic view of the structure of the section A-A of FIG. 1;

FIG. 3 is a schematic diagram of the front view of the present utility model;

FIG. 4 is a schematic side view in half cross section of the present utility model;

FIG. 5 is a schematic rear view of the present utility model;

in fig. 1-2: 2. a shield body; 21. an inner cover; 22. and the shaft hole.

In fig. 3-5: 1. a shield body; 11. an inner cover; 12. a shaft hole; 13. an inner notch; 14. an outer notch.

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 be within the scope of the utility model.

Examples

Referring to fig. 3-5, the present utility model provides the following technical solutions: the motor protection cover comprises a protection cover body 1, an inner cover 11 is formed inside the protection cover body 1, a shaft hole 12 is formed in the inner side of the inner cover 11, an inner notch 13 is formed in the symmetrical end of the shaft hole 12 in the protection cover body 1, an outer notch 14 is formed in the inner side of the inner cover 11 in the protection cover body 1, the protection cover body 1 is simple to form and convenient to process, and cost is effectively controlled when the motor is protected better.

Specifically, one end of the inner slot 13 is of an open structure and is communicated with the shaft hole 12.

Specifically, the outer slots 14 are symmetrically two and the symmetry axis is the symmetry axis of the two inner slots 13.

Specifically, the outer notch 14 has an arc-shaped structure and is concentric with the shield main body 1, the inner cover 11 and the shaft hole 12.

Specifically, the widths of the inner notch 13 and the outer notch 14 are 1mm, wherein the inner diameter and the outer diameter of the outer notch 14 are 9mm and 11mm respectively, and in the embodiment, the shaft hole 12, the inner notch 13 and the outer notch 14 are matched with each other to play a role in protection and buffering.

Specifically, the inner ring of the side of the shield main body 1 far away from the inner cover 11 and the end part of the inner ring of the side of the shaft hole 12 close to the inner cover 11 are both formed with chamfers, and the chamfers are convenient for the insertion of the motor shell part and the rotating pin in the embodiment, so that the docking effect is convenient.

The working principle and the using flow of the utility model are as follows: the shield main body 1 forms an inner notch 13 and an outer notch 14 in the process of forming the shaft hole 12, the two inner notch 13 are communicated with the shaft hole 12, and the two outer notches 14 are symmetrically distributed;

size: the thickness of the shield main body 1 is 2mm, the inner diameter is 46mm, the outer diameter is 50mm, and the total length is 33mm; the diameter of the shaft hole 12 is 4.9mm, the width of the inner notch 13 is 1mm, the outer notch 14 has two circular arc structures, the inner diameter of the circular arc is 9mm, the outer diameter is 11mm, and the width is 1mm;

the parts are required to have no obvious phenomena of shrinkage, deformation, flash, material shortage, cracking and the like; the parts meet the RoHs2.0 and REACH requirements.

Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present utility model has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A motor protection cover, characterized in that: the novel protective cover comprises a protective cover body (1), wherein an inner cover (11) is formed in the protective cover body (1), a shaft hole (12) is formed in the inner side of the inner cover (11) arranged on the protective cover body (1), an inner notch (13) is formed in the symmetrical end of the shaft hole (12) in the protective cover body (1), and an outer notch (14) is formed in the inner side of the inner cover (11) in the protective cover body (1).

2. A motor protector according to claim 1, characterized in that: one end of the inner groove opening (13) is of an opening structure and is communicated with the shaft hole (12).

3. A motor protector according to claim 1, characterized in that: the number of the outer notch (14) is two symmetrically, and the two inner notch (13) is taken as a symmetry axis.

4. A motor protector according to claim 1, characterized in that: the outer notch (14) is of an arc-shaped structure and is concentric with the shield main body (1), the inner cover (11) and the shaft hole (12).

5. A motor protector according to claim 1, characterized in that: the widths of the inner groove opening (13) and the outer groove opening (14) are 1mm, wherein the inner diameter and the outer diameter of the outer groove opening (14) are 9mm and 11mm respectively.

6. A motor protector according to claim 1, characterized in that: the end parts of the inner ring of the side, far away from the inner cover (11), of the shield main body (1) and the inner ring of the side, close to the inner cover (11), of the shaft hole (12) are respectively formed with a chamfer angle.