Simple assembly structure of motor

Abstract

The utility model discloses a simple assembly structure of a motor, which relates to the technical field of fan type motors and comprises a stator with a penetrating shaft; the rear end cover is provided with a bearing chamber for accommodating the bearing outer ring; an outer ring of the bearing is in interference fit with the bearing chamber of the rear end cover, and an inner ring of the bearing is rotatably mounted on the shaft of the stator; the rotor is fixedly arranged in the rear end cover and is coaxially connected with the shaft; according to the technical scheme provided by the utility model, the working procedures of bearing installation and lock screw fixation on the front end cover are omitted, the stator can be assembled manually, and an extra pressing die is not needed. The number of needed parts is reduced through optimization design, for example, a bearing position of the front end cover is omitted, the design of the front end cover is simplified, and therefore the requirement for specific tool equipment is lowered. The simplified assembly process improves the production efficiency, reduces the material cost and the production cost, and is beneficial to large-scale production and quick response to market requirements.

Description

Technical Field

[0001] The utility model relates to the technical field of fan motors, in particular to a simple motor assembly structure. Background Art

[0002] The traditional assembly process for fan motors typically involves wrapping the stator with front and rear end covers, with the bearings on the end covers connecting to the rotor. This traditional method has several shortcomings:

[0003] During installation, the bearings must be pre-installed and secured to the end cap or stator. Once in place, they must be secured with screws. This cumbersome process requires a suitable clamping die. This complex process results in higher material and production costs, while also reducing assembly efficiency. The complexity of traditional structures increases maintenance difficulties, and disassembly and reassembly require extended time, hindering maintenance efficiency. Utility Model Content

[0004] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a simple motor assembly structure to solve the problems in the background art.

[0005] In view of this, the present invention provides a simple motor assembly structure, comprising:

[0006] a stator having a shaft extending therethrough;

[0007] a rear end cover having a bearing chamber for accommodating a bearing outer ring;

[0008] A bearing, the outer ring of which forms an interference fit with the bearing chamber of the rear end cover, and the inner ring is rotatably mounted on the shaft of the stator;

[0009] A rotor, fixedly disposed inside the rear end cover and coaxially connected to the shaft;

[0010] at least two retaining springs, respectively provided on the shaft of the stator and located on either side of the bearing, for firmly fixing the inner ring of the bearing to the shaft;

[0011] When the motor rotates, the outer ring of the bearing, the rear end cover and the rotor rotate together around the axis.

[0012] Optionally, the rotor is fixed in the rear end cover by glue dispensing;

[0013] Furthermore, the rotor and the rear end cover are fixed by glue using an environmentally friendly adhesive.

[0014] Optionally, one of the at least two retaining springs is located above the bearing, and the other is located below the bearing, so as to limit the axial movement of the bearing and ensure its radial positioning.

[0015] It can be seen from the above technical solutions that the embodiments of the present invention have the following advantages:

[0016] 1. This utility model provides a simplified motor assembly structure that eliminates the need for bearing installation and screw fastening on the front cover. Stator assembly can be completed manually, without the need for additional clamping dies. Optimized design reduces the number of required parts, such as eliminating the bearing position on the front cover, simplifying the front cover design and reducing the need for specialized tooling. This streamlined assembly process improves production efficiency, reduces material and production costs, and facilitates large-scale production and rapid response to market demand.

[0017] 2. The utility model provides a simple motor assembly structure, which makes the assembly and disassembly process easier through a simple structural design, improves production efficiency and facilitates subsequent maintenance work.

[0018] These features and advantages of the present invention will be disclosed in detail in the following specific embodiments and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further described below with reference to the accompanying drawings:

[0020] Figure 1 This is a schematic diagram of the structure of the utility model;

[0021] Figure 2 It is a cross-sectional schematic diagram of the present utility model.

[0022] Explanation of the accompanying reference numerals: 1. stator; 2. rotor; 31. rear end cover; 4. bearing; 6. retaining spring. DETAILED DESCRIPTION

[0023] The following is an explanation and description of the technical solutions of the embodiments of the present invention in conjunction with the drawings of the embodiments of the present invention, but the following embodiments are only preferred embodiments of the present invention and are not exhaustive. Based on the embodiments in the embodiments, other embodiments obtained by those skilled in the art without creative work are all within the scope of protection of the present invention.

[0024] A simple motor assembly structure according to an embodiment of the present invention will be described in detail below with reference to the accompanying drawings. Example

[0025] For easier understanding, see Figures 1 to 2 The utility model provides an embodiment of a simple motor assembly structure, comprising:

[0026] The stator 1 has a shaft 11 extending therethrough;

[0027] a rear end cover 31, which is provided with a bearing chamber for accommodating the bearing outer ring;

[0028] The bearing 4 has an outer ring that forms an interference fit with the bearing chamber of the rear end cover 31 and an inner ring that is rotatably mounted on the shaft 11 of the stator 1;

[0029] The rotor 2 is fixedly disposed inside the rear end cover 31 and coaxially connected to the shaft 11;

[0030] At least two retaining springs 6 are provided on the shaft 11 of the stator 1 and on both sides of the bearing 4 to securely fix the inner ring of the bearing 4 to the shaft 11;

[0031] When the motor rotates, the outer ring of the bearing 4 , the rear end cover 31 and the rotor 2 rotate together around the shaft 11 .

[0032] The rotor 2 is fixed in the rear end cover 31 by glue dispensing;

[0033] Furthermore, the rotor 2 and the rear end cover 31 are fixed by glue using an environmentally friendly adhesive.

[0034] One of the at least two retaining springs 6 is located above the bearing 4 , and the other is located below the bearing 4 , so as to limit the axial movement of the bearing 4 and ensure its radial positioning.

[0035] It should be noted that the stator 1 includes a shaft 11 running through its center, which supports the rotor 2 and transmits its rotational motion. The rear end cover 31 is provided with a bearing chamber to accommodate the outer ring of the bearing. The rear end cover 31 also serves to secure the position of the rotor 2. The outer ring of the bearing 4 is tightly mounted in the bearing chamber of the rear end cover 31 through an interference fit, while the inner ring is freely rotatable on the stator shaft 11, ensuring smooth operation of the motor.

[0036] The rotor 2 is coaxially connected to the stator shaft 11. In order to ensure the safe fixation of the rotor, an environmentally friendly adhesive is used to fix the rotor inside the rear end cover 31 by dispensing. This not only enhances the reliability of the fixation, but also meets environmental protection requirements.

[0037] At least two retaining springs 6 are provided on the stator shaft 11, located above and below the bearing 4. These retaining springs prevent axial displacement of the bearing 4, thereby ensuring accurate radial positioning of the bearing. One retaining spring 6 is located above the bearing, while the other is located below, effectively limiting axial movement of the bearing.

[0038] Working Principle: First, press the outer ring of bearing 4 into the bearing chamber of the rear end cover 31, ensuring a secure interference fit. Next, insert the shaft 11 of stator 1 into the inner ring of bearing 4, allowing them to rotate relative to each other. Next, position rotor 2 within rear end cover 31 and secure it with an environmentally friendly adhesive, ensuring a secure connection between the rotor and rear end cover that meets environmental standards. Install retaining springs 6, one above and one below bearing 4, to define the bearing's axial position on the shaft.

[0039] As described above, the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A simple motor assembly structure, characterized in that: include: A stator (1) having a shaft (11) extending therethrough; a rear end cover (31) having a bearing chamber for accommodating a bearing outer ring; A bearing (4), the outer ring of which forms an interference fit with the bearing chamber of the rear end cover (31), and the inner ring of which is rotatably mounted on the shaft (11) of the stator (1); A rotor (2) fixedly disposed inside the rear end cover (31) and coaxially connected to the shaft (11); At least two retaining springs (6), respectively provided on the shaft (11) of the stator (1) and located on both sides of the bearing (4), for firmly fixing the inner ring of the bearing (4) on the shaft (11); When the motor rotates, the outer ring of the bearing (4), the rear end cover (31) and the rotor (2) rotate together around the shaft (11).

2. The simplified motor assembly structure according to claim 1, characterized in that: The rotor (2) is fixed in the rear end cover (31) by glue dispensing; Furthermore, the dispensing fixing method between the rotor (2) and the rear end cover (31) adopts an environmentally friendly adhesive.

3. The simplified motor assembly structure according to claim 1, characterized in that: One of the at least two retaining springs (6) is located above the bearing (4), and the other is located below the bearing (4), for limiting the axial movement of the bearing (4) and ensuring its radial positioning.

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