Rotor of axial magnetic flux motor and axial magnetic flux motor

Abstract

The embodiment of the utility model discloses a rotor of an axial magnetic flux motor and the axial magnetic flux motor, and the rotor comprises a magnetic steel retainer and a plurality of magnetic steels. The magnetic steel retainer comprises a fixed disc, a plurality of magnetic isolation strips and a plurality of baffle plates; the first ends of the magnetic isolation strips are connected with the periphery of the fixed disc; a magnetic steel groove is formed between every two adjacent magnetic isolation strips. The magnetic steel is arranged in the magnetic steel groove; the magnetic steel grooves are matched with the magnetic steel; the baffles used for limiting the magnetic steel are arranged at the second ends of the magnetic isolation strips, and an interval exists between every two adjacent baffles. Wherein the second end is opposite to the first end. The baffle plates for limiting the magnetic steel are arranged on the magnetic isolation strips of the magnetic steel retainer, and a gap is formed between every two adjacent baffle plates, so that the impact force of the magnetic steel on the magnetic steel retainer acts on the connecting positions of the baffle plates and the magnetic isolation strips, the condition of deformation of the baffle plates can be effectively avoided, the working efficiency of the rotor is improved, and the service life of the rotor is prolonged. And the service life of the magnetic steel retainer is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of motor technology, and in particular to a rotor and an axial flux motor. Background Technology

[0002] In the current rotor structure of axial flux motors, the magnets are subjected to centrifugal force, which causes vibration and impact. This impact force mainly acts on the top of the baffle of the magnet cage, which can easily cause the baffle to deform, affecting the working efficiency and service life of the axial flux motor. Utility Model Content

[0003] To address the problem of deformation of the magnet cage in existing axial flux motors, this application provides the following technical solution:

[0004] On the one hand, this application provides a rotor for an axial flux motor, the rotor including a magnet cage and a plurality of magnets; the magnet cage includes a fixed disk, a plurality of magnetic isolation strips and a plurality of baffles;

[0005] The first end of the magnetic shielding strip is connected to the outer periphery of the fixed disk; a magnetic groove is formed between two adjacent magnetic shielding strips; the magnet is disposed in the magnetic groove; the magnetic groove is adapted to the magnet;

[0006] The baffle is disposed on the second end of the magnetic strip, and there is a gap between two adjacent baffles; the second end is disposed opposite to the first end; the baffle is used to limit the movement of the magnet.

[0007] In some exemplary embodiments, the magnetic strip connected to the baffle is located on the axis of symmetry of the baffle, so that the two sides of the baffle respectively limit the movement of two adjacent magnets.

[0008] In some exemplary embodiments, the magnet is fan-shaped, and the first inner side of the baffle is adapted to the first outer side of the two adjacent magnets; the first outer side is away from the fixing plate; the first inner side abuts against the first outer side.

[0009] In some exemplary embodiments, the plurality of baffles may have the same or different shapes, and the two sides of the baffles may have the same or different shapes.

[0010] In some exemplary embodiments, the baffle is welded to the second end.

[0011] In some exemplary embodiments, the second end has a threaded hole, and a screw matching the threaded hole is provided on the axis of symmetry of the first inner side. The baffle is connected to the threaded hole through the screw and fixed to the second end.

[0012] In some example embodiments, the magnetic steel is adhesively connected with the two adjacent magnetic isolation strips.

[0013] In some example embodiments, the fixed disc is circular in shape, and the second inner side surface of the magnetic steel is arc-shaped so that the second inner side surface is in abutment with the outer periphery of the fixed disc.

[0014] In some example embodiments, the rotor further comprises a rotating shaft, the rotating shaft is arranged on a central shaft of the axial flux motor, the fixed disc is provided with a central hole, and the fixed disc is sleeved on the rotating shaft through the central hole.

[0015] In another aspect, the application provides an axial flux motor comprising the rotor of any one of the above-mentioned axial flux motors.

[0016] With the above technical solution, the rotor of the axial flux motor and the axial flux motor provided by the application have the following beneficial effects:

[0017] The rotor of the axial flux motor comprises a magnetic steel holder, a plurality of magnetic steels, a fixed disc, a plurality of magnetic isolation strips, and a plurality of baffles. The first end of the magnetic isolation strip is connected with the outer periphery of the fixed disc. The magnetic steel groove is formed between the two adjacent magnetic isolation strips. The magnetic steel is arranged in the magnetic steel groove. The magnetic steel groove is matched with the magnetic steel. The baffle for limiting the magnetic steel is arranged on the second end of the magnetic isolation strip, and there is a gap between the two adjacent baffles. The second end is arranged opposite to the first end. The baffle for limiting the magnetic steel is arranged on the magnetic isolation strip of the magnetic steel holder, and there is a gap between the two adjacent baffles. The impact force of the magnetic steel on the magnetic steel holder acts on the connection position of the baffle and the magnetic isolation strip, which can effectively prevent the baffle from deforming, improve the working efficiency of the rotor, prolong the service life of the magnetic steel holder, and further improve the working efficiency of the axial flux motor and prolong the service life of the axial flux motor. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the application, and other drawings can be obtained by those skilled in the art without creative labor.

[0019] Figure 1 FIG. 1 is a schematic view of a rotor provided by an embodiment of the application;

[0020] Figure 2 FIG. 2 is a side view of the rotor provided by the embodiment of the application.

[0021] Figure 3 A front view of a rotor provided by an embodiment of the present application;

[0022] Figure 4 A side view of a magnetic steel holder provided by an embodiment of the present application;

[0023] Figure 5 A schematic view of a magnetic steel provided by an embodiment of the present application;

[0024] Figure 6 A partial schematic view of a rotor provided by an embodiment of the present application.

[0025] The following is a supplementary description of the drawings:

[0026] 1 - magnetic steel holder; 10 - fixed disc; 101 - center hole; 11 - magnetic isolation bar; 111 - first end; 112 - second end; 12 - baffle; 121 - first inner side; 13 - magnetic steel slot; 2 - magnetic steel; 21 - first outer side; 22 - second inner side; 3 - rotating shaft. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0028] The term "one embodiment" or "an embodiment" as used herein means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one implementation of the present application. The appearances of the term "one embodiment" or "an embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are they necessarily referring to one specific embodiment. In the description of the application, the terms "upper", "lower", "top", "bottom", etc. indicate the orientation or positional relationship based on the drawings shown in the figures, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", etc. are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features referred to. Therefore, the features defined as "first", "second", etc. can explicitly or implicitly include one or more of the features. Moreover, the terms "first", "second", etc. are used to distinguish similar objects, and do not necessarily describe a particular order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein.

[0029] When a range of values is disclosed herein, the disclosure is to be understood to encompass the explicitly stated values and that each intervening value, to the minimum resolution of the measurement unit, and any other values not explicitly stated are, even though not expressly stated, to be understood as forming a part of the range. A range of values disclosed as being helpful for attaining some result or achievement is to be construed in the context of the application described and the general purpose of the present disclosure making such attaining some result or achievement possible. Further, any listings of ranges of values should be understood to include each and every value, and range of values, within the stated range. For example, a stated range of "1 to 10" should be considered to include any and all sub-ranges between (and inclusive of) the minimum value of 1 and the maximum value of 10; that is, all sub-ranges beginning with a minimum value of 1 or more and ending with a maximum value of 10 or less, and all sub-ranges that are wholly contained within the range of 1 to 10, e.g., 1 to 6.1, 3.5 to 7.8, 5.5 to 10, etc.

[0030] The embodiment of the present application provides a kind of axial flux motor, please refer to Figures 1-4 The rotor includes magnetic steel holder 1, a plurality of magnetic steel 2;Magnetic steel holder 1 includes fixed disc 10, a plurality of magnetic separation strip 11 and a plurality of baffle 12.

[0031] Specifically, the magnetic steel holder 1 can be an integrated structure, the fixed disc 10, a plurality of magnetic separation strip 11 and a plurality of baffle 12 can also be connected by one or two of welding mode or detachable mode, the fixed disc 10 can be circular shape, can also be regular polygon shape.

[0032] The first end 111 of magnetic separation strip 11 is connected with the outer periphery of fixed disc 10;Two magnetic separation strips 11 arranged adjacent constitute magnetic steel groove 13;Magnetic steel 2 is arranged in magnetic steel groove 13;Magnetic steel groove 13 and magnetic steel 2 are adapted.

[0033] Specifically, the number of magnetic separation strips can be set according to actual demand, for example, 10 magnetic separation strips 11 are arranged on the outer periphery of the fixed disc 10, wherein the first end 111 of the 10 magnetic separation strips 11 is connected with the outer periphery of the fixed disc 10, and the 10 magnetic separation strips 11 are uniformly distributed, and the magnetic separation strips 11 arranged adjacent constitute 10 magnetic steel grooves 13 with the same shape and size, and 10 magnetic steels 2 with the same shape and size are arranged in the 10 magnetic steel grooves 13;And magnetic steel groove 13 and magnetic steel 2 are adapted;Simple process, symmetrical structure, which is conducive to improving the stability of rotor operation.

[0034] Baffle 12 is arranged on the second end 112 of magnetic separation strip 11, and there is a gap between two adjacent baffles 12;Second end 112 and first end 111 are oppositely arranged;Baffle 12 is used for limiting magnetic steel 2.

[0035] Specifically, the baffle plate 12 is arranged on the second end 112 of the magnetic isolation strip 11, and the baffle plate 12 is used for limiting the magnetic steel 2 and plays a fixing role on the magnetic steel 2, preventing the magnetic steel 2 from being thrown by the centrifugal force during the operation of the rotor, and there is a gap between the two adjacent baffle plates 12, so that the impact force of the magnetic steel 2 on the magnetic steel holder 1 is applied to the connection position of the baffle plate 12 and the magnetic isolation strip 11, which can effectively avoid the deformation of the baffle plate 12 and prevent the magnetic steel 2 from sliding relative to the magnetic steel groove 13, thereby improving the working stability and efficiency of the rotor.

[0036] In the embodiment of the present application, the magnetic isolation strip 11 connected with the baffle plate 12 is located on the symmetry axis of the baffle plate 12, so that the two sides of the baffle plate 12 limit the two adjacent magnetic steels 2 respectively. Specifically, the magnetic isolation strip 11 connected with the baffle plate 12 is arranged on the symmetry axis of the baffle plate 12, so that the two sides of the baffle plate 12 limit the two adjacent magnetic steels 2 respectively. For example, by arranging the magnetic isolation strip 11 connected with the baffle plate 12 on the symmetry axis of the baffle plate 12, the two sides of the baffle plate 12 can limit the two adjacent magnetic steels 2 respectively, and the process is simple.

[0037] In the embodiment of the present application, the magnetic steel 2 is fan-shaped, the first inner side surface 121 of the baffle plate 12 is adapted to the first outer side surface 21 of the two adjacent magnetic steels 2; the first outer side surface 21 is away from the fixed disc 10; and the first inner side surface 121 abuts against the first outer side surface 21. Specifically, the magnetic steel 2 is fan-shaped, and the first inner side surface 121 of the baffle plate 12 is adapted to the first outer side surface 21 of the two adjacent magnetic steels 2, so that the first inner side surface 121 of the baffle plate 12 is tightly combined with the first outer side surface 21 of the two adjacent magnetic steels 2. For example, by setting the magnetic steel 2 to be fan-shaped and adapting the first inner side surface 121 of the baffle plate 12 to the first outer side surface 21 of the two adjacent magnetic steels 2, the first inner side surface 121 of the baffle plate 12 is tightly combined with the first outer side surface 21 of the two adjacent magnetic steels 2, so that the force of the magnetic steel 2 on the baffle plate 12 is evenly distributed during the operation of the rotor.

[0038] In the embodiment of the present application, the shapes of the plurality of baffle plates 12 are the same or different, and the shapes of the two sides of the baffle plate 12 are the same or different. In a specific implementation, the shapes of the plurality of baffle plates 12 can be the same or different, and the shape of the baffle plate 12 can be regular or irregular, which can be set according to actual needs. For example, please refer to Figure 4 By setting the shapes and sizes of the 10 baffle plates 12 to be the same and the shapes of the two sides of the baffle plate 12 to be the same, the force of the two adjacent baffle plates 12 on the magnetic steel 2 between the two baffle plates 12 is the same during the operation of the rotor, and the baffle plate 12 is less likely to deform.

[0039] In the embodiment of the present application, the baffle 12 is welded to the second end 112. Specifically, the baffle 12 can be welded to the second end 112. For example, the baffle 12 is welded to the second end 112 by welding, so that the connection between the baffle 12 and the second end 112 is more firm.

[0040] In the embodiment of the present application, the second end 112 is provided with a threaded hole, and the first inner side surface 121 is provided with a screw matched with the threaded hole, and the baffle 12 is connected to the threaded hole by the screw and fixed to the second end 112. Specifically, the second end 112 is provided with a threaded hole, and the first inner side surface 121 is provided with a screw matched with the threaded hole, and the baffle 12 is connected to the threaded hole by the screw and fixed to the second end 112. For example, the second end 112 is provided with a threaded hole, and the first inner side surface 121 is provided with a screw matched with the threaded hole, and the baffle 12 is connected to the threaded hole by the screw and fixed to the second end 112, so that when the baffle 12 is installed or removed, the baffle 12 can be directly rotated without the need for additional tools, and the baffle 12 can be replaced as consumables.

[0041] In the embodiment of the present application, the magnetic steel 2 is adhesively connected to the two adjacent magnetic isolation strips 11. In specific implementation, the magnetic steel 2 and the two adjacent magnetic isolation strips 11 can be connected by adhesion. For example, after the magnetic steel 2 is placed in the magnetic steel groove 13, the magnetic steel 2 and the two adjacent magnetic isolation strips 11 are adhesively connected by adhesion, so that the magnetic steel 2 is fixed to the magnetic steel holder 1, and the process is simple and the cost is low.

[0042] In the embodiment of the present application, the shape of the fixed disc 10 is circular, and the second inner side surface 22 of the magnetic steel 2 is arc-shaped, so that the entire area of the second inner side surface 22 abuts against the outer periphery of the fixed disc 10. In specific implementation, the shape of the fixed disc 10 can be circular, and the second inner side surface 22 of the magnetic steel 2 is arc-shaped, so that the entire area of the second inner side surface 22 abuts against the outer periphery of the fixed disc 10. Alternatively, the shape of the fixed disc 10 can be a regular polygon, and the second inner side surface 22 of the magnetic steel 2 is square-shaped, so that the entire area of the second inner side surface 22 abuts against the outer periphery of the fixed disc 10. For example, referring to Figure 4 and Figure 5 By setting the shape of the fixed disc 10 as circular and the second inner side surface 22 of the magnetic steel 2 as arc-shaped, the entire area of the second inner side surface 22 abuts against the outer periphery of the fixed disc 10, so that the interaction force between the outer periphery of the fixed disc 10 and the second inner side surface 22 of the magnetic steel 2 is uniformly distributed, and the stability of the rotor during operation is improved.

[0043] In the embodiment of the present application, the rotor further comprises a rotating shaft 3; the rotating shaft 3 is arranged on the central shaft of the axial flux motor; the fixing disc 10 is provided with a central hole 101; the shape and size of the central hole 101 are matched with the rotating shaft 3, and the fixing disc 10 is sleeved on the rotating shaft 3 through the central hole 101. Specifically, the rotating shaft 3 is arranged on the central shaft of the axial flux motor; the fixing disc 10 is provided with a central hole 101; and the fixing disc 10 is sleeved on the rotating shaft 3 through the central hole 101. For example, refer to Figure 6 By arranging the rotating shaft 3 on the central shaft of the axial flux motor, providing the fixing disc 10 with the central hole 101, and sleeving the fixing disc 10 on the rotating shaft 3 through the central hole 101, the center of the rotor is located on the central shaft of the axial flux motor, thereby improving the stability of the rotor during operation.

[0044] In the embodiment of the present application, an axial flux motor is also provided, which comprises the rotor of any one of the axial flux motors described above.

[0045] For example, refer to Figures 1-4 The rotor comprises the magnetic steel holder 1 and a plurality of magnetic steels 2; there is a gap between the adjacent two baffles 12 on the magnetic steel holder 1 for limiting the magnetic steels 2, so that the impact force of the magnetic steels 2 on the magnetic steel holder 1 acts on the connection position of the baffle 12 and the magnetic separation strip 11, and the deformation of the baffle 12 can be effectively avoided.

[0046] In order to facilitate the understanding of the technical solutions of the embodiments of the present application, the following will be combined with Figures 1-6The embodiment of the application is used for assembling a rotor of an axial flux motor. First, the rotor comprises a magnetic steel holder 1 and 10 magnetic steels 2. The magnetic steel holder 1 comprises a fixed disc 10, 10 magnetic isolation strips 11 and 10 baffles 12. The fixed disc 10 is circular. The first ends 111 of the 10 magnetic isolation strips 11 are welded to the outer periphery of the fixed disc 10. The 10 magnetic isolation strips 11 are evenly distributed and two adjacent magnetic isolation strips 11 form 10 magnetic steel slots 13 with the same shape and size. The magnetic steels 2 are fan-shaped, and the second inner side surfaces 22 of the magnetic steels 2 are arc-shaped. When the magnetic steels 2 are placed in the magnetic steel slots 13, the second inner side surfaces 22 abut against the outer periphery of the fixed disc 10. The magnetic steels 2 are adhesively connected to two adjacent magnetic isolation strips 11. The 10 baffles 12 with the same shape and symmetrical on both sides are welded to the second ends 112 of the 10 magnetic isolation strips 11, and there is a gap between two adjacent baffles 12. The second end 112 is opposite to the first end 111. The baffles 12 are used for limiting the magnetic steels 2, so that the impact force of the magnetic steels 2 on the magnetic steel holder 1 is applied to the connection position of the baffles 12 and the magnetic isolation strips 11, and the deformation of the baffles 12 can be effectively avoided. The magnetic steel holder 1 with the magnetic steels 2 is sleeved on the rotating shaft 3 arranged on the central shaft of the axial flux motor through the central hole 101 of the fixed disc 10, so that the center of the rotor is located on the central shaft of the axial flux motor.

[0047] The rotor of the axial flux motor disclosed by the embodiment of the application comprises a magnetic steel holder and a plurality of magnetic steels. The magnetic steel holder comprises a fixed disc, a plurality of magnetic isolation strips and a plurality of baffles. The first end of the magnetic isolation strip is connected to the outer periphery of the fixed disc. Two adjacent magnetic isolation strips form a magnetic steel slot. The magnetic steel is arranged in the magnetic steel slot. The magnetic steel slot is matched with the magnetic steel. The baffle for limiting the magnetic steel is arranged on the second end of the magnetic isolation strip, and there is a gap between two adjacent baffles. The second end is opposite to the first end. By arranging the baffle for limiting the magnetic steel on the magnetic isolation strip of the magnetic steel holder, and there is a gap between two adjacent baffles, so that the impact force of the magnetic steel on the magnetic steel holder is applied to the connection position of the baffle and the magnetic isolation strip, the deformation of the baffle can be effectively avoided, the working efficiency of the rotor is improved, the service life of the magnetic steel holder is prolonged, and the working efficiency of the axial flux motor is improved, and the service life of the axial flux motor is prolonged.

[0048] The above is only an optional embodiment of the application, and is not used to limit the application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the application shall be included in the protection scope of the application.

Claims

1. A rotor of an axial flux electric machine, characterized in that, The rotor comprises a magnetic steel holder (1) and a plurality of magnetic steels (2); The magnetic steel holder (1) comprises a fixed disc (10), a plurality of magnetic separation strips (11) and a plurality of baffles (12); The first end (111) of the magnetic separation strip (11) is connected with the outer periphery of the fixed disc (10); two adjacent magnetic separation strips (11) form a magnetic steel groove (13) therebetween; the magnetic steel (2) is arranged in the magnetic steel groove (13); the magnetic steel groove (13) is matched with the magnetic steel (2); The baffle (12) is arranged on the second end (112) of the magnetic separation strip (11), and there is a gap between two adjacent baffles (12); the second end (112) is arranged opposite to the first end (111); the baffle (12) is used for limiting the magnetic steel (2).

2. A rotor for an axial flux machine as claimed in claim 1, characterised in that, The magnetic separation strip (11) connected with the baffle (12) is located on the symmetry axis of the baffle (12), so that the two sides of the baffle (12) limit two adjacent magnetic steels (2) respectively.

3. A rotor for an axial flux machine as claimed in claim 1 or 2, wherein, The magnetic steel (2) is in the shape of a sector, the first inner side surface (121) of the baffle (12) is matched with the first outer side surface (21) of the two adjacent magnetic steels (2); the first outer side surface (21) is away from the fixed disc (10); the first inner side surface (121) is in abutment with the first outer side surface (21).

4. A rotor for an axial flux machine as claimed in claim 1 or 2, wherein, The shapes of the plurality of baffles (12) are the same or different, and the shapes of the two sides of the baffle (12) are the same or different.

5. A rotor for an axial flux machine as claimed in claim 1, wherein, The baffle (12) is welded on the second end (112).

6. A rotor for an axial flux machine as claimed in claim 3, wherein The second end (112) is provided with a threaded hole, and the symmetry axis of the first inner side surface (121) is provided with a screw matched with the threaded hole; the baffle (12) is connected with the threaded hole through the screw, and is fixed on the second end (112).

7. A rotor for an axial flux machine as claimed in claim 1, wherein The magnetic steel (2) is adhesively connected with the two adjacent magnetic separation strips (11).

8. A rotor for an axial flux machine as claimed in claim 1, characterised in that, The fixed disc (10) is in the shape of a circle, and the second inner side surface (22) of the magnetic steel (2) is in the shape of an arc, so that the second inner side surface (22) is in abutment with the outer periphery of the fixed disc (10) in the whole area.

9. A rotor for an axial flux machine as claimed in claim 1, wherein, The rotor further comprises a rotating shaft (3); The rotating shaft (3) is arranged on the central shaft of the axial flux motor; the fixed disc (10) is provided with a central hole (101); the fixed disc (10) is sleeved on the rotating shaft (3) through the central hole (101).

10. An axial flux electric machine characterized by, The rotor of the axial flux motor comprises the rotor of any one of claims 1-9.

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