Frameless motor

Abstract

The utility model provides a frameless motor, which comprises a stator bracket, a main shaft, a rotor and a winding, and is characterized in that the stator bracket comprises a bracket part and a stator part; the support part and the stator part are of an integrated connection structure. The main shaft penetrates through the bracket part and is connected with the stator part; the main shaft is rotatably connected to the bracket part; the rotor is contained in the stator part, connected to the main shaft and driven by the main shaft to rotate relative to the stator part; the rotor rotates along the axis of the stator part; the winding is located between the stator part and the rotor and connected to the stator part, at the moment, the support part and the stator part are of an integrated connection structure, the overall structure of the support part and the overall structure of the stator part are fully utilized, the overall occupied area of the stator support is reduced, connection of middleware and avoiding of the position are avoided, and the overall structure of the frameless motor is compact. The overall size of the frameless motor is reduced, and the miniaturization design is realized.

Description

Technical Field

[0001] This utility model relates to the technical field of motors, and more particularly to a frameless motor. Background Technology

[0002] With the development of technology, electric motors are used in industry. An electric motor is a device that converts electrical energy into mechanical energy. It uses an energized coil to generate a rotating magnetic field, which acts on the rotor to form a magnetoelectric torque.

[0003] In the prior art, the existing motor includes a stator support, a main shaft, a rotor, and windings. The main shaft is connected to the stator support, the rotor is connected to the main shaft, and the windings are connected to the stator support and the rotor respectively. The stator support includes a support section and a stator section. The support section and the stator section are separate structures and have an intermediate component. The support section is connected to the stator section through the intermediate component, which results in the large size of the existing motor. Utility Model Content

[0004] The purpose of this utility model is to provide a frameless motor, wherein the stator support includes a support portion and a stator portion; the support portion and the stator portion are integrally connected; the main shaft passes through the support portion and the stator portion and is rotatably connected to the support portion; the rotor is housed in the stator portion, the rotor is connected to the main shaft, and rotates relative to the stator portion under the drive of the main shaft; the rotor rotates along the axis of the stator portion; the winding is located between the stator portion and the rotor and is connected to the stator portion. At this time, the support portion and the stator portion are integrally connected, making full use of the overall structure of the support portion and the stator portion, reducing the overall area occupied by the stator support, avoiding the connection of intermediate parts and the avoidance of positional conflicts, the overall structure of the frameless motor is relatively compact, reducing the overall volume of the frameless motor, and realizing miniaturization design.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a frameless motor, comprising:

[0006] A stator support includes a support portion and a stator portion; the support portion and the stator portion are integrally connected.

[0007] A main shaft passes through and connects the bracket portion and the stator portion, and the main shaft is rotatably connected to the bracket portion;

[0008] The rotor is housed in the stator section, the rotor is connected to the main shaft, and rotates relative to the stator section under the drive of the main shaft; the rotor rotates along the axis of the stator section.

[0009] The winding is located between the stator and the rotor, and is connected to the stator.

[0010] Optionally, the stator section is provided with a first receiving groove;

[0011] Both the winding and the rotor are located within the first receiving slot and do not extend beyond it.

[0012] Optionally, the stator section is provided with a boss, and the winding is sleeved on the boss and connected to the boss.

[0013] Optionally, the main shaft passes through the boss, and the portion of the main shaft extending beyond the boss is connected to the rotor and drives the rotor to rotate; the axis of the main shaft coincides with the axis of the stator.

[0014] Optionally, the stator support is a one-piece molded structure.

[0015] Optionally, the bracket portion and the stator portion are fitted together along the axial direction of the main shaft;

[0016] The support portion is provided with a second receiving groove, which is offset from the first receiving groove and communicates along the axial direction of the main shaft; the second receiving groove is used to receive a portion of the main shaft.

[0017] Optionally, the frameless motor further includes a second bearing, which is located within the second receiving groove. The inner wall of the second bearing is connected to the main shaft, and the outer wall of the second bearing is connected to the inner wall of the second receiving groove.

[0018] Optionally, the frameless motor further includes a first bearing, which is located within the first receiving groove. The inner wall of the first bearing is connected to the rotor, and the outer wall of the first bearing is connected to the inner wall of the first receiving groove.

[0019] Optionally, the rotor is an integral rotor.

[0020] Compared with the prior art, the beneficial effects of this utility model are:

[0021] This utility model provides a frameless motor. The stator support includes a support section and a stator section. The support section and the stator section are integrally connected. A main shaft passes through the support section and the stator section and is rotatably connected to the support section. The rotor is housed in the stator section and connected to the main shaft, and rotates relative to the stator section under the drive of the main shaft. The rotor rotates along the axis of the stator section. The winding is located between the stator section and the rotor and is connected to the stator section. At this time, the support section and the stator section are integrally connected, making full use of the overall structure of the support section and the stator section, reducing the overall area occupied by the stator support, avoiding the connection of intermediate parts and the avoidance of positional obstacles, and the overall structure of the frameless motor is relatively compact, reducing the overall volume of the frameless motor and realizing miniaturization design. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] To gain a more complete understanding of this application and its beneficial effects, the following description will be provided in conjunction with the accompanying drawings. In the following description, the same reference numerals denote the same parts.

[0024] Figure 1 A schematic diagram of a frameless motor according to the present application is shown.

[0025] Figure 2 A cross-sectional view of a frameless motor according to the present application is shown.

[0026] Figure 3 It shows Figure 2 A magnified view of a portion of point A in the middle.

[0027] Figure 4 An exploded view of a frameless motor according to the present application is shown.

[0028] Figure 5 A schematic diagram of the rotor of a frameless motor according to the present application is shown.

[0029] Figure Labels

[0030] 100. Frameless motor;

[0031] 10. Stator support; 11. Support section; 11a. Second receiving groove; 12. Stator section; 12a. First receiving groove; 121. Boss; 121a. Through hole;

[0032] 20. Spindle;

[0033] 30. Rotor;

[0034] 40. Windings;

[0035] 50. Second bearing;

[0036] 60. First bearing. Detailed Implementation

[0037] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0038] Please refer to the attached document. Figures 1-4 This utility model provides a frameless motor 100, which is used in robots. The frameless motor 100 is a device that converts electrical energy into mechanical energy. It uses an energized coil to generate a rotating magnetic field, which acts on the rotor 30 to form a magnetoelectric rotational torque.

[0039] Please refer to the attached document. Figures 1-4 In this application, the frameless motor 100 includes a stator support 10, a main shaft 20, a rotor 30, and windings 40. The stator support 10 includes a support portion 11 and a stator portion 12; the support portion 11 and the stator portion 12 are integrally connected; the main shaft 20 passes through the support portion 11 and the stator portion 12 and is rotatably connected to the support portion 11; the rotor 30 is housed in the stator portion 12, connected to the main shaft 20, and rotates relative to the stator portion 12 under the drive of the main shaft 20; the rotor... Rotor 30 rotates along the axis of stator 12; winding 40 is located between stator 12 and rotor 30 and connected to stator 12. At this time, support 11 and stator 12 are integrated, making full use of the overall structure of support 11 and stator 12, reducing the overall area occupied by stator support 10, avoiding the connection of intermediate parts and position avoidance, and the overall structure of frameless motor 100 is relatively compact, reducing the overall volume of frameless motor 100 and realizing miniaturization design.

[0040] Please refer to the attached document. Figures 1-4 In this application, the stator bracket 10 serves as a support component for the frameless motor 100, supporting the main shaft 20, rotor 30, and winding 40. The stator bracket 10 includes a bracket portion 11 and a stator portion 12; the bracket portion 11 and the stator portion 12 are integrally connected, ensuring the connection strength between the bracket portion 11 and the stator portion 12 and improving the connection stability between them. By fully utilizing the overall structure of the bracket portion 11 and the stator portion 12, the overall area occupied by the stator bracket 10 is reduced, avoiding the connection of intermediate components and positional avoidance. The overall structure of the frameless motor 100 is relatively compact, reducing the overall volume of the frameless motor 100 and achieving miniaturization.

[0041] Please refer to the attached document. Figures 1-4 In this application, the main shaft 20 is disposed inside the stator support 10. The main shaft 20 passes through the support portion 11 and connects with the stator portion 12. The main shaft 20 is rotatably connected to the support portion 11 so as to adjust the position of the main shaft 20 relative to the support portion 11.

[0042] Please refer to the attached document. Figures 1-5In this application, the rotor 30 is disposed inside the stator support 10 and housed in the stator section 12 so that the rotor 30 can make full use of the internal space of the stator section 12. The rotor 30 is connected to the main shaft 20 and rotates relative to the stator section 12 under the drive of the main shaft 20. The rotor 30 rotates along the axis of the stator section 12 so that the rotor 30 rotates with the rotation of the main shaft 20, thereby facilitating the adjustment of the position of the rotor 30 relative to the stator section 12.

[0043] Please refer to the attached document. Figures 1-4 In this application, the winding 40 is located between the stator 12 and the rotor 30 and is connected to the stator 12 so that the winding 40 is fixed to the stator 12. The winding 40 generates a rotating magnetic field and acts on the rotor 30 to form a magnetoelectric rotational torque.

[0044] Please refer to the attached document. Figures 1-4 The stator portion 12 is provided with a first receiving groove 12a; the first receiving groove 12a is recessed from right to left in the stator portion 12, and the winding 40 and the rotor 30 are both located in the first receiving groove 12a and do not exceed the first receiving groove 12a, so that the winding 40 and the rotor 30 can make full use of the internal space of the first receiving groove 12a, thereby facilitating the winding 40 and the rotor 30 to be built into the stator portion 12 through the first receiving groove 12a. The overall structure of the frameless motor 100 is relatively compact, reducing the overall volume of the frameless motor 100 and realizing miniaturization design.

[0045] Please refer to the attached document. Figures 1-4 The stator part 12 is provided with a boss 121, which protrudes along the length direction of the stator part 12. The winding 40 is sleeved on the boss 121 and connected to the boss 121 so that the winding 40 can be fixed on the outer surface of the boss 121, thereby facilitating the connection between the winding 40 and the stator part 12 through the boss 121 to achieve the fixation of the winding 40.

[0046] Please refer to the attached document. Figures 1-4 The main shaft 20 passes through the boss 121. The outer contour of the main shaft 20 and the inner contour of the boss 121 are fitted with a clearance, so that the main shaft 20 can rotate relative to the boss 121 through the clearance. The part of the main shaft 20 that extends beyond the boss 121 is connected to the rotor 30 so that the rotor 30 is fixedly connected to the main shaft 20. The main shaft 20 drives the rotor 30 to rotate. The axis of the main shaft 20 coincides with the axis of the stator 12 so that the rotor 30 rotates with the rotation of the main shaft 20, so that the rotor 30 can rotate along the axis of the stator 12.

[0047] Please refer to the attached document. Figures 1-4The boss 121 is provided with a through hole 121a, through which the main shaft 20 passes, so that the main shaft 20 passes through the boss 121 through the through hole 121a, thereby facilitating one end of the main shaft 20 to extend to the side of the boss 121 facing away from the support portion 11. One end of the main shaft 20 is exposed on the boss 121, so that the part of the main shaft 20 that extends beyond the boss 121 can be connected to the rotor 30, so that the rotor 30 can be fixedly connected to the main shaft 20.

[0048] Please refer to the attached document. Figures 1-4 The stator support 10 is a one-piece molded structure, which ensures the strength of the stator support 10 and reduces the overall area occupied by the stator support 10, so that the overall structure of the frameless motor 100 is more compact, reducing the overall volume of the frameless motor 100 and realizing miniaturization design.

[0049] Please refer to the attached document. Figures 1-4 The support portion 11 and the stator portion 12 are fitted together along the axial direction of the main shaft 20 so that the support portion 11 and the stator portion 12 can be stacked in the left and right direction. The support portion 11 is provided with a second receiving groove 11a, which is recessed from left to right by the support portion 11. The second receiving groove 11a is staggered with the first receiving groove 12a and is connected along the axial direction of the main shaft 20. The second receiving groove 11a is used to receive part of the main shaft 20 so that the main shaft 20 can pass through the inner wall of the second receiving groove 11a and the boss 121 to the first receiving groove 12a. This makes it easy for the end of the main shaft 20 facing away from the first receiving groove 12a to be received in the second receiving groove 11a, and further easy for the inner wall of the second receiving groove 11a to abut against the main shaft 20, so that the main shaft 20 can be built into the inner side of the stator support 10, making full use of the internal space of the stator support 10.

[0050] Please refer to the attached document. Figures 1-4 The frameless motor 100 also includes a second bearing 50, which is located in the second receiving groove 11a so that the second bearing 50 can make full use of the space of the second receiving groove 11a. The inner wall of the second bearing 50 is connected to the main shaft 20, and the outer wall of the second bearing 50 is connected to the inner wall of the second receiving groove 11a so that the outer wall of the main shaft 20 and the inner wall of the second receiving groove 11a can clamp the second bearing 50, thereby ensuring the position of the second bearing 50, so that the main shaft 20 can rotate more smoothly relative to the support part 11 under the action of the second bearing 50.

[0051] Please refer to the attached document. Figures 1-4 The fixed end of the second bearing 50 is attached to the inner wall of the second receiving groove 11a, and the output end of the second bearing 50 is connected to the main shaft 20 so that the main shaft 20 can rotate relative to the support part 11 under the action of the second bearing 50, thereby improving the smoothness of the rotation of the main shaft 20.

[0052] Please refer to the attached document. Figures 1-4The frameless motor 100 also includes a first bearing 60, which is located in a first receiving groove 12a so that the first bearing 60 can make full use of the space of the first receiving groove 12a. The inner wall of the first bearing 60 is connected to the rotor 30, and the outer wall of the first bearing 60 is connected to the inner wall of the first receiving groove 12a so that the outer wall of the rotor 30 and the inner wall of the first receiving groove 12a can clamp the first bearing 60, thereby ensuring the position of the first bearing 60, so that the rotor 30 can improve the smoothness of rotation relative to the stator 12 under the action of the first bearing 60.

[0053] Please refer to the attached document. Figures 1-4 The fixed end of the first bearing 60 is attached to the inner wall of the first receiving groove 12a, and the output end of the first bearing 60 is connected to the rotor 30 so that the rotor 30 can rotate relative to the stator 12 under the action of the first bearing 60, thereby improving the smoothness of the rotor 30's rotation.

[0054] Please refer to the attached document. Figure 5 The rotor 30 is an integral rotor 30, which ensures the strength of the rotor 30 and reduces the overall area occupied by the stator support 10, so that the overall structure of the frameless motor 100 is more compact, reducing the overall volume of the frameless motor 100 and realizing miniaturization design.

[0055] In another embodiment, a robot includes a frameless motor 100, which is part of the robot and is used to perform tasks automatically.

[0056] Compared with the prior art, the beneficial effects of this utility model are:

[0057] This utility model provides a frameless motor 100. The stator support 10 includes a support portion 11 and a stator portion 12. The support portion 11 and the stator portion 12 are integrally connected. A main shaft 20 passes through the support portion 11 and the stator portion 12 and is rotatably connected to the support portion 11. A rotor 30 is housed in the stator portion 12 and is connected to the main shaft 20. The rotor 30 rotates relative to the stator portion 12 under the drive of the main shaft 20. The rotor 30 rotates along the axis of the stator portion 12. A winding 40 is located between the stator portion 12 and the rotor 30 and is connected to the stator portion 12. At this time, the support portion 11 and the stator portion 12 are integrally connected, which makes full use of the overall structure of the support portion 11 and the stator portion 12, reduces the overall area occupied by the stator support 10, avoids the connection of intermediate parts and position avoidance, and the overall structure of the frameless motor 100 is relatively compact, reducing the overall volume of the frameless motor 100 and realizing miniaturization design.

[0058] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0059] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more features.

[0060] This document uses specific examples to illustrate the principles and implementation methods of this application. The descriptions of the above embodiments are only for the purpose of helping to understand the methods and core ideas of this application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A frameless motor, characterized in that, include: A stator support includes a support portion and a stator portion; the support portion and the stator portion are integrally connected. A main shaft passes through and connects the bracket portion and the stator portion, and the main shaft is rotatably connected to the bracket portion; The rotor is housed in the stator section, the rotor is connected to the main shaft, and rotates relative to the stator section under the drive of the main shaft; the rotor rotates along the axis of the stator section. The winding is located between the stator and the rotor, and is connected to the stator.

2. The frameless motor according to claim 1, characterized in that, The stator section is provided with a first receiving groove; Both the winding and the rotor are located within the first receiving slot and do not extend beyond it.

3. The frameless motor according to claim 2, characterized in that, The stator section is provided with a boss, and the winding is sleeved on the boss and connected to the boss.

4. The frameless motor according to claim 3, characterized in that, The main shaft passes through the boss, and the portion of the main shaft extending beyond the boss is connected to the rotor and drives the rotor to rotate; the axis of the main shaft coincides with the axis of the stator.

5. The frameless motor according to claim 2, characterized in that, The stator support is a one-piece molded structure.

6. The frameless motor according to claim 5, characterized in that, The support portion and the stator portion are fitted together along the axial direction of the main shaft; The support portion is provided with a second receiving groove, which is offset from the first receiving groove and communicates along the axial direction of the main shaft; the second receiving groove is used to receive a portion of the main shaft.

7. The frameless motor according to claim 6, characterized in that, The frameless motor also includes a second bearing, which is located in the second receiving groove. The inner wall of the second bearing is connected to the main shaft, and the outer wall of the second bearing is connected to the inner wall of the second receiving groove.

8. The frameless motor according to claim 4, characterized in that, The frameless motor also includes a first bearing, which is located in the first receiving groove. The inner wall of the first bearing is connected to the rotor, and the outer wall of the first bearing is connected to the inner wall of the first receiving groove.

9. The frameless motor according to claim 1, characterized in that, The rotor is a one-piece rotor.

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