A rotor frame for an axial flux motor

Abstract

This utility model relates to the field of axial flux motor technology, specifically a rotor frame for an axial flux motor, including a rotor base. Multiple sets of blades are evenly spaced along the circumferential direction on the outer edge of the rotor base, and the blades are integrally injection molded with the rotor base. Permanent magnets are arranged sequentially along the circumferential direction on the outer side of the rotor base, and these permanent magnets are inserted between adjacent blades. A slip ring is provided on the outer side of the rotor base for fixing the permanent magnets after installation. This utility model integrates the key bar with the rotor base through injection molding, using the key bar to replace the traditional spline operation, making assembly more convenient, reducing manufacturing processes, and lowering the production cost of the rotor frame. Furthermore, by setting multiple sets of through slots, this utility model reduces its own weight, thereby increasing the rotational speed, and the multiple sets of through slots also facilitate subsequent heat dissipation.

Description

Technical Field

[0001] This utility model relates to the field of axial flux motor technology, specifically to a rotor frame for an axial flux motor. Background Technology

[0002] Compared with traditional structure motors, axial flux permanent magnet motors can save both raw materials and energy, and therefore have important research significance. However, one of the important components of axial flux motors is the rotor frame.

[0003] Currently, the rotor frame needs to be connected with the shaft using splines. However, the splines used in the existing rotor frames are set separately, which increases the manufacturing process and makes the cost of the rotor frame higher. Moreover, the existing rotor frames are heavy, which affects the rotation speed and makes subsequent heat dissipation difficult. Utility Model Content

[0004] The purpose of this invention is to provide a rotor frame for an axial flux motor, in order to solve the problems mentioned in the background art, such as high manufacturing cost, large weight, and impact on rotation speed and heat dissipation.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a rotor frame for an axial flux motor, comprising a rotor base, wherein multiple sets of blades are arranged at equal intervals along the circumferential direction on the outer edge of the rotor base, and the blades and the rotor base are integrally injection molded; permanent magnets are arranged sequentially along the circumferential direction on the outer side of the rotor base, and the permanent magnets are inserted between adjacent blades; a slip ring is provided on the outer side of the rotor base, which is used for fixing the permanent magnets after installation.

[0006] Preferably, the inner wall of the rotor seat is provided with two sets of key strips, and the two sets of key strips are symmetrical about the central axis of the rotor seat.

[0007] Preferably, the key bar and the rotor seat are integrally injection molded, and when the rotor seat is assembled with the rotating shaft, the key bar and the keyway of the rotating shaft cooperate to achieve positioning.

[0008] Preferably, grooves are provided on both the left and right sides of the blade, and protrusions are integrally injection molded on both sides of the surface of the permanent magnet, and the protrusions are inserted into the grooves when the permanent magnet is assembled with the rotor seat.

[0009] Preferably, the surface of the rotor base is provided with multiple sets of through slots, which can reduce the weight of the rotor base itself, increase the rotation speed, and improve the heat dissipation effect.

[0010] Preferably, the thickness of the permanent magnet is equal to the thickness of the blade and the height of the slip ring.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: When implementing the rotor frame of this axial flux motor, permanent magnets are inserted between adjacent blades. After insertion, the protrusions and grooves cooperate to limit the movement, increasing the convenience of installation. The frame is then fixed to the edge of the rotor. During subsequent assembly, since the key bar and rotor seat are integrally injection molded, the limiting function can be achieved by matching the key bar with the spline groove of the shaft. This utility model, by integrally injection molding the key bar and rotor seat, uses the key bar to replace the traditional spline function, making assembly more convenient, reducing manufacturing processes, and lowering the production cost of the rotor frame. Furthermore, by setting multiple sets of through slots, this utility model reduces its own weight, thereby increasing the rotational speed. The multiple sets of through slots also facilitate subsequent heat dissipation. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0013] Figure 2 This is a schematic diagram of a partial explosion structure of the present invention;

[0014] Figure 3 This is an enlarged schematic diagram of the rotor seat structure of this utility model;

[0015] Figure 4 This is an enlarged schematic diagram of the permanent magnet structure of this utility model.

[0016] In the diagram: 1. Rotor base; 11. Blade; 12. Key bar; 13. Groove; 14. Through slot; 2. Permanent magnet; 21. Protrusion; 3. Slip ring. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. In addition, the terms "first", "second", "third", "upper", "lower", "left", "right", etc. are used for descriptive purposes only and should not be construed as indicating or implying relative importance. At the same time, in the description of the present utility model, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. 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 an indirect connection through an intermediate medium. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present utility model.

[0018] The present invention provides a rotor frame structure for an axial flux motor as follows: Figure 1 , Figure 2 as well as Figure 3 As shown, the rotor includes a rotor base 1. Multiple sets of blades 11 are evenly spaced along the outer edge of the rotor base 1 in the circumferential direction. The blades 11 and the rotor base 1 are integrally injection molded. Two sets of key strips 12 are provided on the inner wall of the rotor base 1. The two sets of key strips 12 are symmetrical about the central axis of the rotor base 1. The key strips 12 and the rotor base 1 are integrally injection molded. When the rotor base 1 is assembled with the rotating shaft, the key strips 12 cooperate with the keyway of the rotating shaft to achieve positioning. Multiple sets of through grooves 14 are provided on the surface of the rotor base 1. The through grooves 14 can reduce the weight of the rotor base 1 itself, increase the speed during rotation, and improve the heat dissipation effect.

[0019] During implementation, the permanent magnet 2 is inserted between adjacent blades 11. After insertion, the protrusion 21 and the groove 13 cooperate to limit the position, increasing the convenience of installation.

[0020] Furthermore, such as Figure 3 as well as Figure 4 As shown, permanent magnets 2 are arranged circumferentially on the outer side of the rotor base 1. The permanent magnets 2 are inserted between adjacent blades 11. Grooves 13 are provided on both the left and right sides of the blades 11. Protrusions 21 are integrally injection molded on both sides of the surface of the permanent magnets 2. When the permanent magnets 2 are assembled with the rotor base 1, the protrusions 21 are inserted into the grooves 13. A slip ring 3 is provided on the outer side of the rotor base 1. The slip ring 3 is used to fix the permanent magnets 2 after installation. The thickness of the permanent magnets 2 is equal to the thickness of the blades 11 and the height of the slip ring 3.

[0021] During implementation, the slip ring 3 is fixed on the edge of the rotor seat 1 and the permanent magnet 2. During subsequent assembly, since the key bar 12 and the rotor seat 1 are integrally injection molded, the limiting work can be achieved by matching the key bar 12 with the spline groove of the rotating shaft.

[0022] Working principle: In use, the permanent magnet 2 is first inserted between adjacent blades 11. After insertion, the protrusion 21 and the groove 13 cooperate to limit the position, which increases the convenience of installation. Then, the slip ring 3 is fitted onto the edge of the rotor seat 1 and the permanent magnet 2 for fixation. During subsequent assembly, since the key bar 12 and the rotor seat 1 are integrally injection molded, the limiting work can be achieved by matching the key bar 12 with the spline groove of the rotating shaft.

[0023] This utility model integrates the key bar 12 and the rotor seat 1 by injection molding. The key bar 12 can replace the traditional spline, making assembly more convenient. This reduces the manufacturing process and lowers the production cost of the rotor frame. Moreover, by setting multiple sets of through slots 14, this utility model reduces its own weight and increases the rotation speed. At the same time, the multiple sets of through slots 14 also facilitate subsequent heat dissipation.

[0024] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A rotor frame for an axial flux motor, comprising a rotor base (1), characterized in that: The outer edge of the rotor seat (1) is provided with multiple sets of blades (11) at equal intervals along the circumference, and the blades (11) and the rotor seat (1) are integrally injection molded. Permanent magnets (2) are arranged sequentially along the circumference on the outer side of the rotor seat (1), and the permanent magnets (2) are inserted between adjacent blades (11). A slip ring (3) is provided on the outer side of the rotor seat (1), and the slip ring (3) is used to fix the permanent magnets (2) after installation.

2. The rotor frame for an axial flux motor according to claim 1, characterized in that: Two sets of key bars (12) are provided on the inner wall of the rotor seat (1), and the two sets of key bars (12) are symmetrical about the central axis of the rotor seat (1).

3. The rotor frame for an axial flux motor according to claim 2, characterized in that: The key bar (12) and the rotor seat (1) are integrally injection molded, and when the rotor seat (1) is assembled with the rotating shaft, the key bar (12) and the keyway of the rotating shaft cooperate to achieve positioning.

4. The rotor frame for an axial flux motor according to claim 1, characterized in that: The blade (11) has grooves (13) on both sides. The permanent magnet (2) has protrusions (21) integrally injection molded on both sides of its surface. When the permanent magnet (2) is assembled with the rotor seat (1), the protrusions (21) are inserted into the grooves (13).

5. A rotor frame for an axial flux motor according to claim 1, characterized in that: The surface of the rotor seat (1) is provided with multiple sets of through slots (14). These through slots (14) can reduce the weight of the rotor seat (1) itself, increase the speed during rotation, and improve the heat dissipation effect.

6. The rotor frame for an axial flux motor according to claim 1, characterized in that: The thickness of the permanent magnet (2) is equal to the thickness of the blade (11) and the height of the slip ring (3).

Images