Motor casing and magnetic shoe mounting structure thereof

Abstract

The utility model relates to a motor casing and a magnetic shoe installation structure thereof, the motor casing comprises a casing, the inner wall of the casing is provided with a circle of bonding area, the bonding area is composed of a plurality of concave points arranged in an array, and the distances between the adjacent concave points are the same. The magnetic shoe mounting structure comprises the magnetic shoes and the motor casing, and the plurality of magnetic shoes are fixed in the bonding area at intervals along the circumferential direction. According to the utility model, the concave points are additionally arranged on the inner wall surface of the shell to form the bonding area, so that glue naturally flows into the plurality of concave points in the coating process, the contact area of the glue and the shell is increased, the bonding strength of the magnetic tile and the shell is improved, the abnormal falling of the magnetic tile is avoided, and the product quality is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of micro-motor structures, and in particular relates to a motor casing and a magnetic tile installation structure thereof. Background Art

[0002] The existing magnetic tiles are directly bonded and cured by applying glue on the back of the magnetic tiles and then directly contacting the adhesive surface with the smooth inner wall of the casing. Although this method can make the magnetic tiles adhere to the casing, the bonding strength is affected by the amount of glue applied, the glue curing time and the quality of the galvanized layer. Under certain conditions, the magnetic tiles may fall off due to insufficient bonding strength with the casing, affecting product quality. Utility Model Content

[0003] In order to solve the above technical problems, the first purpose of the utility model is to provide a motor casing, which can fix the magnetic tiles more firmly. The second purpose of the utility model is to provide a magnetic tile installation structure.

[0004] In order to achieve the first purpose of the above utility model, the utility model adopts the following technical solutions:

[0005] A motor casing comprises a shell, the inner wall of which is provided with a circle of bonding area, the bonding area is composed of a plurality of concave points arranged in an array, and the spacing between adjacent concave points is the same.

[0006] As a preferred solution: the spacing between adjacent concave points is 0.7-1.3 mm, and the height of the concave points is 0.05-0.2 mm.

[0007] As a preferred solution: the concave point is columnar or arc-shaped, and the bottom surface of the columnar concave point is a curved surface.

[0008] In order to achieve the second purpose of the above utility model, the utility model adopts the following technical solutions:

[0009] A magnetic tile installation structure comprises a magnetic tile and any one of the motor housings described above, wherein a plurality of magnetic tiles are fixed in a bonding area at intervals along the circumferential direction.

[0010] As a preferred solution: the height of the bonding area is greater than the height of the magnetic tile.

[0011] As a preferred solution: a clamping block for mounting the carbon brush holder is further provided on the upper part of the bonding area on the side wall of the housing.

[0012] As a preferred solution: the number of the magnetic tiles is four, which are arranged at equal intervals along the circumferential direction, and the number of the clamping blocks is three, which are also arranged at equal intervals along the circumferential direction.

[0013] The utility model forms a bonding area by adding concave points on the inner wall surface of the shell, so that the glue naturally flows into a plurality of concave points during the application process, thereby increasing the contact area between the glue and the shell, thereby increasing the bonding strength between the magnetic tile and the shell, avoiding abnormal shedding of the magnetic tile, and improving product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The drawings in the specification, which constitute a part of the present application, are used to provide a further understanding of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute a limitation on the present application.

[0015] Figure 1 It is a structural schematic diagram of the motor casing of the utility model;

[0016] Figure 2 It is a structural schematic diagram of the motor casing of the utility model after the magnetic tile is installed.

[0017] The figures are marked as follows: 1. Shell; 2. Adhesive area; 3. Magnetic tile; 4. Block. DETAILED DESCRIPTION

[0018] It should be noted that the following detailed descriptions are illustrative and are intended to provide further explanation of the present application. Unless otherwise specified, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which the present application belongs.

[0019] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0020] In addition, in the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0021] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "plurality" means two or more, unless otherwise clearly defined.

[0022] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0024] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0025] like Figure 1 A motor housing shown includes a housing, the inner wall of the housing is provided with a circle of adhesive area, the adhesive area is composed of a plurality of convex points arranged in an array, and the spacing between adjacent concave points is the same, the spacing between adjacent concave points is 0.7-1.3mm, and the height of the convex points is 0.05-0.2mm. The concave points are columnar or arc-shaped blocks, and the bottom surface of the columnar concave points is a curved surface.

[0026] like Figure 2 As shown, a magnetic tile installation structure includes a magnetic tile and the motor housing as described above, and a plurality of magnetic tiles are fixed in the bonding area at intervals along the circumferential direction. During installation, glue is first applied to the back of the magnetic tile, and then the magnetic tile is glued to the concave point, and the glue naturally flows into the pores of the concave point. After curing, the bonding strength between the magnetic tile and the housing can be effectively improved, preventing the magnetic tile from falling off, and improving product quality.

[0027] The height of the fixing area is greater than the height of the magnetic tile. A clamping block for mounting a carbon brush holder is also provided on the side wall of the housing at the upper part of the fixing area. There are four magnetic tiles, which are arranged at equal intervals along the circumference, and there are three clamping blocks, which are also arranged at equal intervals along the circumference.

[0028] The utility model increases the contact area between the glue and the housing by adding concave points on the smooth inner wall of the housing, thereby improving the bonding strength. The preferred spacing of the concave points is 1 mm, and the depth is 0.1 mm (which can be adjusted according to the actual required bonding strength). This can effectively improve the bonding strength between the magnetic tile and the housing, prevent the magnetic tile from falling off, and improve product quality.

[0029] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0030] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limiting the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention without departing from the principles and purpose of the present invention. Any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A motor casing, comprising a casing (1), characterized in that: The inner wall of the shell (1) is provided with a circle of bonding area (2), and the bonding area (2) is composed of a plurality of concave points arranged in an array, and the spacing between adjacent concave points is the same.

2. A motor housing according to claim 1, characterized in that: The distance between adjacent concave points is 0.7-1.3 mm, and the depth of the concave points is 0.05-0.2 mm.

3. The motor housing according to claim 1, characterized in that: The concave point is in the shape of a column or an arc block, and the bottom surface of the columnar concave point is a curved surface.

4. A magnetic tile installation structure, characterized in that: The invention comprises a magnetic tile (3) and a motor housing as claimed in any one of claims 1 to 3, wherein a plurality of magnetic tiles (3) are fixed in a bonding area at intervals along the circumferential direction.

5. A magnetic tile installation structure according to claim 4, characterized in that: The height of the bonding area (2) is greater than the height of the magnetic tile (3).

6. The magnetic tile installation structure according to claim 4, characterized in that: A clamping block (4) for mounting a carbon brush holder is also provided on the side wall of the housing (1) at the upper portion of the bonding area (2).

7. A magnetic tile installation structure according to claim 6, characterized in that: The magnetic tiles (3) are four in number and are arranged at equal intervals in the circumferential direction, and the clamping blocks (4) are three in number and are also arranged at equal intervals in the circumferential direction.

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