Simple mounting structure of motor

Abstract

The utility model discloses a simple installation structure of a motor, a motor end cover comprises a first fixedly-installed unit, a second fixedly-installed unit and a third fixedly-installed unit which are distributed in a triangular shape, and the first fixedly-installed unit, the second fixedly-installed unit and the third fixedly-installed unit are integrally connected through an end cover plate. Each fixed mounting unit comprises a fixed mounting base surface which is bent downwards relative to the end cover plate surface, the fixed mounting base surface is provided with a fastening hole used for being fixedly connected with a motor shell, and the two sides of the fixed mounting base surface are provided with a left side wall and a right side wall which extend upwards; wherein the left side wall or the right side wall is provided with a fixing column protruding upwards, the fixing column is matched with a limiting hole of the motor control panel in a limiting and inserting mode, and the fixing column and the motor control panel are fixedly installed and connected through a fastener. According to the utility model, the structure of the motor end cover and the assembly process of the motor are simplified, the structural strength of the motor is improved, and the risks of overlarge vibration and failure of the motor in the operation process of the motor are reduced.

Description

Technical Field

[0001] The utility model belongs to the field of motor installation structures, and particularly relates to a simple installation structure for a motor. Background Art

[0002] Most of the motor bearings on the current market are arranged at both ends of the stator magnet. To ensure the rationality of the overall assembly of the motor, the motor bearings need to be assembled on the structures that cooperate with the upper and lower ends of the motor. Specifically: during the design process, the upper bearing is usually arranged on the motor housing fixed to the stator, the lower bearing is installed on the motor end cover, and then the motor end cover and the motor housing are interlocked together by screws; at the same time, to ensure the rationality of the assembly of the PCB circuit board, positioning posts and fixing posts for fixing the PCB circuit board need to be additionally added on the motor end cover, resulting in a more complex structure of the motor end cover, making the production and assembly of the motor end cover more cumbersome; at the same time, since the limiting holes, positioning posts, fixing posts, etc. on the motor end cover are mostly thin-wall structures, it is easy to cause vibration and failure problems of the motor.

[0003] Therefore, the applicant hopes to seek technical solutions to solve the above technical problems. Summary of the Invention

[0004] In view of this, the purpose of the utility model is to provide a simple installation structure for a motor, which simplifies the structure of the motor end cover and the assembly process of the motor, and at the same time improves the structural strength of the motor, reducing the risk of excessive vibration and motor failure during the operation of the motor.

[0005] The technical solution adopted by the utility model is as follows:

[0006] A simple installation structure for a motor, including a motor end cover rotatably mounted on a motor shaft, the motor end cover being fixedly installed and connected to a motor housing and a motor control board respectively; the motor end cover includes a first fixing unit, a second fixing unit and a third fixing unit distributed in a triangular shape, wherein the first fixing unit, the second fixing unit and the third fixing unit are integrally connected through the end cover surface; each fixing unit includes a fixing base surface bent downward relative to the end cover surface, the fixing base surface is provided with fastening holes for fixedly installing and connecting to the motor housing, and both sides of the fixing base surface are provided with a left side wall and a right side wall extending upward; wherein, a fixing post protruding upward is provided on the left side wall or the right side wall, the fixing post is in limit plug-in fit with the limiting hole of the motor control board, and the fixing post and the motor control board are fixedly installed and connected through a fastener.

[0007] Preferably, the first fixing unit, the second fixing unit and the third fixing unit have the same structure.

[0008] Preferably, the end faces of the left side wall and the right side wall are flush or nearly flush with the end cover surface.

[0009] Preferably, the end faces of the left side wall and the right side wall are flush, and the height of their end faces is lower than the end cover surface, so that a reinforcing step is formed at the connection between the left side wall, the right side wall and the end cover surface.

[0010] Preferably, the outer circumference of the fixing post is cylindrical and is in limit insertion and fitting with the limit hole of the motor control board; at the same time, a threaded hole for tightly connecting with a fastener is provided on the inner circumference of the fixing post.

[0011] Preferably, a fixing post section is provided on the upper end face of the fixing post, wherein the fixing post section is integrally connected with the mounting support column body below it to form a limit step, and the fixing post section is in limit insertion and fitting with the limit hole of the motor control board.

[0012] Preferably, the axial length range of the fixing post section is 1-3 mm, and its outer diameter is 3-5 mm.

[0013] Preferably, the outer side edge of the fixing base surface is arc-shaped and is in exact corresponding fit with the outer arc section of the motor housing. It is used to improve the installation concentricity between the motor end cover and the motor housing.

[0014] Preferably, the motor end cover is an integrally injection-molded part.

[0015] Preferably, the motor is an electric fan, which includes a rotor assembly and an impeller fixedly installed with the motor shaft, and a stator assembly located on the outer circumference of the rotor assembly, and the stator assembly is fixedly arranged on the inner circumference of the motor housing

[0016] The present application proposes to provide a fixing post structure integrating the functions of limit and fastening on the motor end cover provided with an installation hole. During installation, the fixing post is not only in limit insertion and fitting with the limit hole of the motor control board, but also fixedly installed and connected with the motor control board through a fastener. The positioning post and the fixing post structure are not separately provided, which simplifies the structure of the motor end cover and the assembly process of the motor. At the same time, the structural strength of the motor is improved, and the risks of excessive vibration and motor failure during the operation of the motor are reduced. Description of the Drawings

[0017] Figure 1 is a schematic diagram of a simple installation structure of the motor under the specific embodiment of the present invention;

[0018] Figure 2 is Figure 1 the top view structure diagram of

[0019] Figure 3 is Figure 1 the cross-sectional view of

[0020] Figure 4 is a schematic structural view of the motor end cover under the specific embodiment of the present utility model;

[0021] Figure 5 is Figure 4 a schematic side structural view of Specific embodiment

[0022] The embodiment of the present utility model discloses a simple installation structure of a motor, including a motor end cover rotatably mounted relative to the motor shaft, and the motor end cover is fixedly mounted to the motor housing and the motor control board respectively; the motor end cover includes a first fixing unit, a second fixing unit, and a third fixing unit distributed in a triangular shape, wherein the first fixing unit, the second fixing unit, and the third fixing unit are integrally connected through the end cover surface; each fixing unit includes a fixing base surface bent downward relative to the end cover surface, and the fixing base surface is provided with fastening holes for fixedly connecting with the motor housing, and the left and right side walls extending upward are provided on both sides of the fixing base surface; wherein, a fixing column protruding upward is provided on the left side wall or the right side wall, and the fixing column is in limit insertion fit with the limit hole of the motor control board, and the fixing column and the motor control board are fixedly mounted and connected through fasteners.

[0023] In order to enable those skilled in the art to better understand the technical solutions in the present utility model, the following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0024] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown in, a simple installation structure of a motor includes a motor end cover 20 rotatably mounted relative to the motor shaft 10, and the motor end cover 20 is fixedly mounted to the motor housing 30 and the motor control board (a well-known structure, not shown in the figure) respectively. Preferably, in this embodiment, the motor is a blower fan, including a rotor assembly 40 fixedly mounted to the motor shaft and an impeller (not shown in the figure), and a stator assembly 50 located on the outer periphery of the rotor assembly 40, and the stator assembly 50 is fixedly arranged on the inner periphery of the motor housing 30;

[0025] Preferably, in order to reduce the installation weight and save costs, in this embodiment, the motor end cover 20 is an integrally injection-molded part; in this embodiment, the motor end cover 20 includes a first fixing unit 21, a second fixing unit 22, and a third fixing unit 23 that are distributed in a triangular shape. Among them, the first fixing unit 21, the second fixing unit 22, and the third fixing unit 23 are integrally connected through the end cover plate surface 24; each fixing unit (including the first fixing unit 21, the second fixing unit 22, and the third fixing unit 23) includes a fixing base surface 25 that is bent downward relative to the end cover plate surface 24. The fixing base surface 25 is provided with fastening holes (hidden in the figure and not shown) for fixedly connecting with the motor housing 30, and both sides of the fixing base surface 25 are provided with a left side wall 26a and a right side wall 26b that extend upward; among them, a fixing post 27 that protrudes upward is provided on the left side wall 26a or the right side wall 26b. The fixing post 27 is in limit insertion and fitting with the limit hole of the motor control board, and the fixing post 27 is fixedly installed and connected with the motor control board through a fastener; preferably, in order to further ensure the installation strength of the fixing post 27, in this embodiment, the outer circumference of the fixing post 27 is cylindrical and is in limit insertion and fitting with the limit hole of the motor control board; at the same time, a threaded hole 28 for tightly connecting with the fastener is provided on the inner circumference of the fixing post 27; further preferably, in this embodiment, the upper end surface of the fixing post 27 is provided with a fixing post section 27a. Among them, the fixing post section 27a is integrally connected with the installation support column body 27b located below it and forms a limit step 27c. The fixing post section 27a is in limit insertion and fitting with the limit hole of the motor control board, and a threaded hole 28 is provided on its inner circumference; specifically preferably, in this embodiment, the axial length range of the fixing post section 27a is 1-3 mm, and its outer diameter is 3-5 mm;

[0026] Preferably, in this embodiment, in order to achieve a more precise assembly effect, the structures of the first fixing unit 21, the second fixing unit 22, and the third fixing unit 23 are the same.

[0027] Preferably, in this embodiment, the end surfaces of the left side wall 26a and the right side wall 26b are flush or nearly flush with the end cover plate surface 24; further preferably, in this embodiment, the end surfaces of the left side wall 26a and the right side wall 26b are flush, and their end surface heights are lower than the end cover plate surface 24, so that a reinforcing step 26c is formed at the connection between the left side wall 26a, the right side wall 26b and the end cover plate surface 24, which can further improve the structural strength of the motor and reduce the risks of excessive vibration and motor failure during the operation of the motor.

[0028] Preferably, in this embodiment, the outer side edge of the fixing base surface 25 is arc-shaped and corresponds to the outer circumferential arc section of the motor housing 30. It is used to improve the installation concentricity between the motor end cover 20 and the motor housing 30, which can further improve the assembly accuracy of the motor and improve the service life and reliability of the motor.

[0029] In this embodiment, a fixed column 27 structure integrating the functions of limiting and fastening is provided on the motor end cover 20 with mounting holes. During installation, the fixed column 27 not only is in limiting insertion fit with the limiting holes of the motor control board, but also is fixedly installed and connected to the motor control board through fasteners. Instead of separately providing positioning columns and fixed column structures, the structure of the motor end cover 20 and the assembly process of the motor are simplified. At the same time, the structural strength of the motor is improved, and the risks of excessive vibration and motor failure during motor operation are reduced.

[0030] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above exemplary embodiments, and the present utility model can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present utility model. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0031] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only includes an independent technical solution. This narrative manner of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A simple installation structure for a motor, comprising a motor end cover rotatably mounted and connected to a motor shaft, and the motor end cover is fixedly mounted and connected to a motor housing and a motor control board respectively; characterized in that, The motor end cover includes a first fixing unit, a second fixing unit, and a third fixing unit that are distributed in a triangular shape. Among them, the first fixing unit, the second fixing unit, and the third fixing unit are integrally connected through the end cover plate surface; Each fixing unit includes a fixing base surface that is bent downward relative to the end cover plate surface. The fixing base surface is provided with fastening holes for fixedly connecting with the motor housing, and left and right side walls that extend upward are provided on both sides of the fixing base surface; among them, a fixing post that protrudes upward is provided on the left side wall or the right side wall. The fixing post is in limit plug-in fit with the limit hole of the motor control board, and the fixing post and the motor control board are fixedly installed and connected through a fastener.

2. The simple installation structure of the motor according to claim 1, characterized in that, The structures of the first fixing unit, the second fixing unit, and the third fixing unit are the same.

3. The simple installation structure of the motor according to claim 2, characterized in that, The end surfaces of the left side wall and the right side wall are flush or nearly flush with the end cover plate surface.

4. The simple installation structure of the motor according to claim 2, characterized in that, The end surfaces of the left side wall and the right side wall are flush, and the height of their end surfaces is lower than the end cover plate surface, so that a reinforcing step is formed at the connection between the left side wall, the right side wall and the end cover plate surface.

5. The simple installation structure of the motor according to claim 1, characterized in that, The outer periphery of the fixing post is cylindrical and is in limit plug-in fit with the limit hole of the motor control board; at the same time, a threaded hole for tightly connecting with a fastener is provided on the inner periphery of the fixing post.

6. The simple installation structure of the motor according to claim 5, characterized in that, The upper end surface of the fixing post is provided with a fixing post section. Among them, the fixing post section is integrally connected with the installation support column body located below it and forms a limit step. The fixing post section is in limit plug-in fit with the limit hole of the motor control board.

7. The simple installation structure of the motor according to claim 6, characterized in that The axial length range of the fixing post section is 1-3 mm, and its outer diameter is 3-5 mm.

8. The simple installation structure of the motor according to claim 1, characterized in that, The outer side edge of the fixing base surface is arc-shaped and corresponds to the outer arc section of the motor housing, so as to improve the installation concentricity between the motor end cover and the motor housing.

9. The simple installation structure of the motor according to claim 1, characterized in that, The motor end cover is an integrally injection-molded part.

10. The simple installation structure of the motor according to claim 1, characterized in that, The motor is a blower, including a rotor assembly and a dynamic impeller that are fixedly installed on the motor shaft as a whole, and a stator assembly located on the outer periphery of the rotor assembly. The stator assembly is fixedly arranged on the inner periphery of the motor housing.

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