Motor

Abstract

The utility model discloses a motor. Comprising a stator unit, one end of which comprises a plurality of mounting holes for positioning the stator unit on other parts; and the rotor unit comprises an end cover and a casing which act synchronously, an output shaft is arranged on the end cover, and a first bearing is arranged between the end cover and / or the casing and the other end of the stator unit. The stator is positioned in a single-head fixing mode, the end of the output shaft used for installing a belt or a chain does not need to be additionally fixed, so that the assembly process is simplified, and the installation difficulty is reduced; the end cover and the housing are integrally formed, thereby improving the operation stability of the motor, and reducing the noise.

Description

Technical Field

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

[0002] In the field of motors, traditional designs often connect the stator and rotor units through complex structures, which not only increases manufacturing costs but may also affect the overall performance of the motor.

[0003] In existing external rotor motor designs, both ends of the stator need to be fixed. This method is relatively inconvenient when connecting a belt or chain to the output shaft. The belt or chain must first be assembled on the output shaft and then fixed at that end. Due to the limited size of the belt or chain itself, the tension of the belt or chain during fixing will increase the difficulty of alignment during fixing.

[0004] To this end, the applicant filed this application. Utility Model Content

[0005] In response to the deficiencies in the prior art, the utility model provides a motor that uses a single-head fixing method to position the stator. No additional fixing is required at the end of the output shaft for installing a belt or chain, thereby simplifying the assembly process and reducing the difficulty of installation.

[0006] In order to solve the above technical problems, the present invention is solved by the following technical solutions:

[0007] A motor comprising

[0008] A stator unit having one end including a plurality of mounting holes for positioning the stator unit on other components; and

[0009] The rotor unit comprises an end cover and a casing that move synchronously, wherein the end cover is provided with an output shaft, and a first bearing is provided between the end cover and / or the casing and the other end of the stator unit.

[0010] In the above technical solution, preferably, one end of the stator unit includes a limiting end head for limiting the motor metal frame, and the mounting hole is opened on the outer side wall of the limiting end head.

[0011] In the above technical solution, preferably, the stator unit includes a first connector having an outer diameter smaller than that of its main body, and the first bearing is mounted on the first connector to limit the first bearing through the side wall of the main body of the stator unit and the inner wall of the end cover.

[0012] In the above technical solution, preferably, the stator unit includes a second connector extending from the first connector, the output shaft is hollow inside and its inner end opening passes through the end cover, and the second connector is inserted into the output shaft through the opening.

[0013] In the above technical solution, preferably, the shape and size of the second connector are adapted to the shape and size of the inner cavity of the output shaft.

[0014] In the above technical solution, preferably, the outer end of the output shaft is provided with a mounting cavity with an aperture larger than the aperture of its inner cavity, and the stator unit includes a third connector extending from the second connector, and the third connector is arranged at the mounting cavity, and a second bearing is arranged between the third connector and the inner wall of the mounting cavity.

[0015] In the above technical solution, preferably, the first connector, the second connector, the third connector, the output shaft inner cavity, and the installation cavity are all circular in shape.

[0016] In the above technical solution, preferably, the inner wall of the end cover includes an annular flange for matching with the outer ring of the first bearing.

[0017] In the above technical solution, preferably, the housing is formed by stretching the outer periphery of the end cover.

[0018] In the above technical solution, preferably, the end cover and the housing are integrally formed.

[0019] The beneficial effects of the utility model are:

[0020] The utility model adopts a single-head fixing method to position the stator, and no additional fixing is required at the end of the output shaft used to install the belt or chain, so as to simplify the assembly process and reduce the installation difficulty; the end cover and the casing are integrally formed to improve the stability of the motor operation and reduce noise. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the utility model.

[0022] Figure 2 This is a schematic diagram from another perspective of the present invention.

[0023] Figure 3 It is a cross-sectional schematic diagram of the present utility model.

[0024] Figure 4 This is a schematic diagram of the stator unit of the present utility model.

[0025] Figure 5 This is a schematic diagram of the rotor unit of the present invention.

[0026] Figure 6 This is a schematic diagram of the rotor unit of the present invention from another perspective. DETAILED DESCRIPTION

[0027] The present invention is further described in detail below with reference to the accompanying drawings and specific embodiments:

[0028] See also Figures 1-6 A motor includes a stator unit 1 and a rotor unit 2, wherein the motor metal frame 31, winding 32, magnetic sheet 33, etc. can refer to the existing design, such as the relevant layout of the outer rotor motor. This application mainly makes corresponding technical improvements to the structural design of the stator unit 1 and the rotor unit 2 and the matching relationship between the two.

[0029] like Figure 3 、 Figure 4 As shown, the stator unit 1 includes a third connector 11, a second connector 12, a first connector 13, a main body 14 and a limiting end 15 arranged in sequence from left to right. As one option, the third connector 11, the second connector 12, the first connector 13, the main body 14 and the limiting end 15 are integrally formed.

[0030] Specifically, the motor metal frame 31 is installed at the main body portion 14 , and the outer diameter of the limiting end 15 is larger than the inner diameter of the motor metal frame 31 so as to limit the motor metal frame 31 .

[0031] In this embodiment, a plurality of mounting holes 151 are provided on the outer wall of the limiting end 15. The mounting holes 151 correspond to the holes on the location where the motor needs to be installed. For example, the motor can be fixed to the location where it needs to be installed, such as on the treadmill frame, by cooperating with fasteners and the mounting holes 151.

[0032] As one embodiment, the mounting hole 151 may be a threaded hole that is threadably matched with a fastener.

[0033] As one embodiment, the outer wall of the limiting end 15 is divided into four parts, each of which is provided with a corresponding mounting hole 151 to form four mounting holes evenly arranged in the circumferential direction. Figure 2 、 Figure 4 shown.

[0034] In this embodiment, the outer diameter of the first connector 13 is smaller than the outer diameter of the main body 14 . The first bearing 4 is installed at the first connector 13 , and the outer wall of the first connector 13 matches the inner ring of the first bearing 4 .

[0035] In this embodiment, the rotor unit 2 includes an end cover 21 and a housing 22 that move synchronously. As one implementation method, the end cover 21 and the housing 22 are integrally formed, for example, the housing 22 is formed by stretching the outer periphery of the end cover 21.

[0036] Further, such as Figure 3 、 Figure 6As shown, the inner wall of the end cover 21 includes an annular flange 23 for matching with the outer ring of the first bearing 4. The inner wall of the annular flange 23 matches with the outer ring of the first bearing 4 so that the first bearing 4 is radially limited between the annular flange 23 and the first connector 13. At the same time, the side wall of the main body 14 and the inner wall of the end cover 21 also axially limit the first bearing 4. After installation, Figure 3 shown.

[0037] As for the second connector 12, it is formed by extending outward from the outer wall of the first connector 13, and its outer diameter is smaller than the outer diameter of the first connector 13. Correspondingly, the end cover 21 includes an output shaft 24, which is used to be connected to a belt or chain. As one option, the output shaft 24 is integrally formed with the end cover 21 and is arranged on the outside of the end cover 21. The output shaft 24 is hollow inside and has openings at both inner and outer ends. The inner end opening is opened on the inner wall of the end cover 21, so that the end of the stator unit 1 can be inserted into the interior of the output shaft 24 through the inner end opening of the output shaft 24.

[0038] The second connector 12 is installed in the output shaft inner cavity 241 . As one embodiment, the shape and size of the second connector 12 are adapted to the shape and size of the output shaft inner cavity 241 .

[0039] As for the third connector 11, it is formed by extending outward from the outer wall of the second connector 12, and its outer diameter is smaller than the outer diameter of the second connector 12. Correspondingly, the outer end of the output shaft 24 has a mounting cavity 242 with an aperture larger than the aperture of its inner cavity. The opening at the outer end of the output shaft 24 is the outer opening of the mounting cavity 242. The third connector 11 is installed in the mounting cavity 242, and a second bearing 5 is arranged between the third connector 11 and the inner wall of the mounting cavity 242.

[0040] In this embodiment, the first connector 13 , the second connector 12 , the third connector 11 , the output shaft inner cavity 241 , and the mounting cavity 242 are all circular in shape.

[0041] The design of this application only needs to fix the limiting end 15 of the stator unit 1, and there is no need to fix one end of the output shaft 24. It is a single-head fixing form, and the motor can be positioned after fixing.

[0042] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments can still be modified, or some of the technical features thereof can be replaced by equivalents. 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 various embodiments of the present invention.

Claims

1. A motor, characterized in that: include A stator unit having one end including a plurality of mounting holes for positioning the stator unit on other components; and The rotor unit comprises an end cover and a casing that move synchronously, wherein the end cover is provided with an output shaft, and a first bearing is provided between the end cover and / or the casing and the other end of the stator unit.

2. A motor according to claim 1, characterized in that: One end of the stator unit includes a limiting end head for limiting the motor metal frame, and the mounting hole is opened on the outer side wall of the limiting end head.

3. A motor according to claim 1 or 2, characterized in that: The stator unit includes a first connector having an outer diameter smaller than that of its main body. The first bearing is mounted on the first connector to limit the first bearing through the side wall of the main body of the stator unit and the inner wall of the end cover.

4. The motor according to claim 3, characterized in that: The stator unit includes a second connector extending from the first connector. The output shaft is hollow inside and its inner end opening passes through the end cover. The second connector is inserted into the output shaft through the opening.

5. The motor according to claim 4, characterized in that: The shape and size of the second connector are adapted to the shape and size of the inner cavity of the output shaft.

6. The motor according to claim 4, characterized in that: The outer end of the output shaft is provided with a mounting cavity having a larger aperture than that of its inner cavity. The stator unit includes a third connector extending from the second connector. The third connector is arranged at the mounting cavity, and a second bearing is arranged between the third connector and the inner wall of the mounting cavity.

7. The motor according to claim 6, characterized in that: The first connector, the second connector, the third connector, the output shaft inner cavity, and the installation cavity are all circular in shape.

8. The motor according to claim 1, characterized in that: The inner wall of the end cover includes an annular flange for matching with the outer ring of the first bearing.

9. A motor according to claim 1 or 8, characterized in that: The housing is formed by stretching the outer periphery of the end cover.

10. A motor according to claim 1 or 8, characterized in that: The end cover and the housing are integrally formed.

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