Axial flux motor and household appliance

Abstract

The utility model discloses an axial magnetic flux motor and a household electrical appliance, the axial magnetic flux motor comprises a stator, the stator comprises a stator seat and an iron core assembly, the iron core assembly comprises a plurality of iron core blocks and a plurality of windings, the plurality of iron core blocks are annularly arranged at intervals, the windings are wound on the iron core blocks, and the stator seat is suitable for being fixedly connected with the iron core assembly in the forming process. The stator seat is partially embedded into the gaps of the iron core blocks, the gaps of the windings and the gaps between the iron core blocks and the windings, and the stator seat is designed to be fixedly connected with the iron core assembly in the forming process, so that the stator seat and the iron core assembly are integrated, and the stator seat and the iron core assembly do not need to be assembled after being manufactured respectively; therefore, the manufacturing process of the stator is simplified, the number of parts is reduced, and the production efficiency is improved.

Description

Technical Field

[0001] The present application relates to the technical field of motors, and particularly to an axial flux motor and a household appliance. Background Art

[0002] In a conventional axial flux motor, the stator base needs to be designed with corresponding assembly structures, and the iron core assembly and the assembly structures are correspondingly matched and assembled onto the stator base to form a stator. The setting of the assembly structures not only makes the structural design of the stator base complicated, but also makes the assembly between the iron core assembly and the stator base troublesome. Summary of the Utility Model

[0003] The present application aims to solve at least one of the technical problems in the related art to some extent. For this purpose, the present application proposes an axial flux motor.

[0004] To achieve the above object, the present application discloses an axial flux motor, which includes a stator. The stator includes a stator base and an iron core assembly. The iron core assembly includes a plurality of iron core blocks and a plurality of windings. The plurality of iron core blocks are arranged in an annular and alternating manner. The windings are wound around the iron core blocks. The stator base is adapted to be connected and fixed to the iron core assembly during the molding process, and a part of the stator base is embedded in the gaps between the iron core blocks, the gaps between the windings, and the gaps between the iron core blocks and the windings.

[0005] In some embodiments of the present application, the material of the stator base is bulk molding compound.

[0006] In some embodiments of the present application, the iron core block includes a mounting portion, a first blocking portion, and a second blocking portion. The first blocking portion is provided on one axial side of the mounting portion, and the second blocking portion is provided on the other axial side of the mounting portion. The winding is wound around the mounting portion and is located between the first blocking portion and the second blocking portion.

[0007] In some embodiments of the present application, the axial flux motor further includes a rotor. The rotor includes a first magnet assembly, a second magnet assembly, and a rotating shaft. The rotating shaft passes through the stator and is rotatably arranged. The first magnet assembly is provided on one axial side of the stator and is fixed to the rotating shaft. The second magnet assembly is provided on the other axial side of the stator and is fixed to the rotating shaft.

[0008] In some embodiments of the present application, the first magnet assembly includes a first rotor disk and a first permanent magnet fixed to the first rotor disk. The second magnet assembly includes a second rotor disk and a second permanent magnet fixed to the second rotor disk;

[0009] The rotor further includes a bushing, the bushing is sleeved and fixed on the rotating shaft, the first rotor disk is fixedly connected to the bushing, and the second rotor disk is fixedly connected to the bushing.

[0010] In some embodiments of the present application, a first stepped groove is provided on one axial side of the bushing, a second stepped groove is provided on the other axial side of the bushing, the first rotor disk is embedded in the first stepped groove, and the second rotor disk is embedded in the second stepped groove;

[0011] And / or, the first rotor disk and the bushing are connected by screws along the axial direction of the axial flux motor, and the second rotor disk and the bushing are connected by screws along the axial direction of the axial flux motor.

[0012] In some embodiments of the present application, the axial flux motor further includes a first end cover and a second end cover. The first end cover is disposed on one axial side of the stator, the first magnet assembly is disposed between the first end cover and the stator, the second end cover is disposed on the other axial side of the stator, and the second magnet assembly is disposed between the second end cover and the stator.

[0013] In some embodiments of the present application, the stator base is provided with a first annular boss and a second annular boss. The first end cover is provided with a first annular groove. The first annular boss is adapted to be embedded in the first annular groove when the first end cover is disposed on one axial side of the stator. The second end cover is provided with a second annular groove. The second annular boss is adapted to be embedded in the second annular groove when the second end cover is disposed on the other axial side of the stator.

[0014] In some embodiments of the present application, the axial flux motor further includes a first bearing and a second bearing. The first bearing is sleeved on the rotating shaft and fixed to the first end cover. The second bearing is sleeved on the rotating shaft and fixed to the second end cover. The rotating shaft is rotatably disposed relative to the first bearing and the second bearing.

[0015] By designing the stator base to be fixedly connected to the iron core assembly during the forming process, the technical solution of the present application makes the stator base and the iron core assembly integrated, eliminating the need to separately manufacture the stator base and the iron core assembly and then assemble them. This simplifies the manufacturing process of the stator, reduces the number of components, and is beneficial to improving production efficiency. At the same time, part of the stator base fills the gaps between the iron core blocks, the windings, and the gaps between the iron core blocks and the windings, which can make the stator base, the iron core blocks, and the windings form a solid structure, enhancing the impact resistance of the stator and improving the heat dissipation performance.

[0016] Other advantages of the present application will be partially given in the following description, partially become obvious from the following description, or be understood through the practice of the present application. Brief Description of the Drawings

[0017] To more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other designs can be obtained based on the structures shown in these drawings.

[0018] Figure 1 It is an exploded view of an axial-flux motor in some embodiments;

[0019] Figure 2 It is a cross-sectional view of an axial-flux motor in some embodiments;

[0020] Figure 3 It is a schematic diagram of a stator in some embodiments;

[0021] Figure 4 It is an exploded view of a stator in some embodiments;

[0022] Figure 5 It is a schematic diagram of the cooperation between a core block and a winding in some embodiments;

[0023] Figure 6 It is a schematic diagram of a core block in some embodiments;

[0024] Figure 7 It is an exploded view of a rotor in some embodiments;

[0025] Figure 8 It is a schematic diagram of a bushing in some embodiments;

[0026] Figure 9 It is a schematic diagram of a first cover in some embodiments;

[0027] Figure 10 It is a schematic diagram of a second cover in some embodiments.

[0028] Description of the Reference Numerals in the Drawings:

[0029] Axial flux motor 100, stator 1000, stator base 1100, first annular boss 1110, second annular boss 1120, iron core assembly 1200, iron core block 1210, first stop portion 1211, second stop portion 1212, mounting portion 1213, winding 1220, rotor 2000, first magnet assembly 2100, first rotor disc 2110, first permanent magnet 2120, second magnet assembly 2200, second rotor disc 2210, second permanent magnet 2220, rotating shaft 2300, shaft sleeve 2400, first stepped groove 2410, second stepped groove 2420, first end cover 3100, first annular groove 3110, second end cover 3200, second annular groove 3210, first bearing 3300, second bearing 3400.

[0030] The realization of the purpose of this application, functional features and advantages will be further described in conjunction with the embodiments and with reference to the accompanying drawings. Detailed implementation manners

[0031] The following will clearly and completely describe the technical solutions in the embodiments of this application with reference to the accompanying drawings in the embodiments of this application. Obviously, the described embodiments are only a part of the embodiments of this application, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in this application without creative efforts shall fall within the scope of protection of this application.

[0032] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of this application are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the accompanying drawings). If this specific posture changes, then the directional indications will change accordingly.

[0033] In this application, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. shall be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two components or the interaction relationship between two components, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific situations.

[0034] In addition, in this application, descriptions such as "first", "second", etc. are only for descriptive purposes and should not be construed as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one such feature. Additionally, the technical solutions between various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0035] The first aspect of this application discloses an axial flux motor 100, in combination with Figures 1 to 4 As shown, the axial flux motor 100 includes a stator 1000, and the stator 1000 includes a stator base 1100 and a core assembly 1200. The stator base 1100 is connected and fixed to the core assembly 1200 during the molding process. By designing the stator base 1100 to be connected and fixed to the core assembly 1200 during the molding process, the stator base 1100 and the core assembly 1200 are integrated into one, eliminating the need to separately manufacture the stator base 1100 and the core assembly 1200 and then assemble them. This simplifies the manufacturing process of the stator 1000, reduces the number of components, and is conducive to improving production efficiency.

[0036] Specifically, the axial flux motor 100 is different from the radial flux motor. The magnetic flux lines of the axial flux motor 100 mainly run along the axial direction, where the axial direction refers to the extension direction of the central axis ( Figure 2 the rotating shaft 2300) of the axial flux motor 100. The axial flux motor 100 includes a stator 1000 and a rotor 2000. The rotor 2000 is rotatably arranged relative to the stator 1000. The stator 1000 includes a stator base 1100 and a core assembly 1200. The stator base 1100 can be understood as the skeleton structure of the stator 1000. Other components of the stator 1000 are installed on the stator base 1100, and the stator base 1100 protects other components of the stator 1000. Generally, the axial flux motor 100 is connected and fixed to the installation area through the stator base 1100 to achieve the support of the axial flux motor 100. When the stator 1000 is energized (i.e., when the core assembly 1200 is energized), the core assembly 1200 can generate a changing magnetic field, and the changing magnetic field acts on the rotor 2000, causing the rotor 2000 to rotate.

[0037] In the related art, the stator base 1100 needs to be designed with a complex assembly structure for the iron core assembly 1200. The stator base 1100 and the iron core assembly 1200 are manufactured separately and then assembled together. This makes it rather troublesome to assemble the iron core assembly 1200 onto the stator base 1100. To simplify the assembly of the iron core assembly 1200 and the stator base 1100, an improvement is proposed in this embodiment. In this embodiment, the stator base 1100 is designed to be connected and fixed to the iron core assembly 1200 during the molding process. The molding process of the stator base 1100 is the process in which the material for manufacturing the stator base 1100 changes from a fluid state to a solid state. When the material for manufacturing the stator base 1100 changes from a fluid state to a solid state, the stator base 1100 can be formed, and during this process, the connection with the iron core assembly 1200 is synchronously achieved. The iron core assembly 1200 is embedded into the stator base 1100, so that the stator base 1100 and the iron core assembly 1200 are combined together. Compared with the related art where the stator base 1100 and the iron core assembly 1200 are manufactured separately and then assembled together, the solution in this embodiment simplifies the manufacturing process of the stator 1000 and effectively improves the production efficiency.

[0038] It can be understood that there are various materials for manufacturing the stator base 1100. The material of the stator base 1100 can be various types such as plastic, rubber, cement, metal, etc. In this embodiment, the material of the stator base 1100 is bulk molding compound (BMC). The bulk molding compound has excellent performance and can effectively support and protect the iron core assembly 1200. For example, the iron core assembly 1200 is placed in a mold, and the bulk molding compound is placed into the mold. After the bulk molding compound is molded, it forms the stator base 1100 and the stator base 1100 is combined with the iron core assembly 1200, thus achieving a tight combination of the stator base 1100 and the iron core assembly 1200.

[0039] In the related art, more reliance is placed on air heat conduction between the iron core assembly 1200 and the stator base 1100. Air heat conduction is not conducive to the timely dissipation of the heat of the iron core assembly 1200, which affects the working performance of the axial flux motor 100. In this embodiment, the stator base 1100 can be prepared from a material with good heat conduction performance. When the stator base 1100 is connected and fixed to the iron core assembly 1200 during the molding process, that is, the stator base 1100 is in contact with the iron core assembly 1200. The heat of the iron core assembly 1200 can be transferred to the stator base 1100 and then dissipated to the outside, avoiding the accumulation of heat on the iron core assembly 1200.

[0040] It can be seen that by designing the stator base 1100 to be connected and fixed to the iron core assembly 1200 during the molding process, the stator base 1100 and the iron core assembly 1200 are integrated, eliminating the need to separately manufacture the stator base 1100 and the iron core assembly 1200 and then assemble them. This simplifies the manufacturing process of the stator 1000, reduces the number of components, and is beneficial to improving production efficiency. By such an arrangement, not only can the connection and fixation between the stator base 1100 and the iron core assembly 1200 be simplified, but also the heat dissipation of the stator 1000 can be enhanced.

[0041] Combined with Figures 2 to 6 As shown, in some embodiments, the iron core assembly 1200 includes iron core blocks 1210 and windings 1220. The windings 1220 are wound around the iron core blocks 1210. The number of iron core blocks 1210 is multiple, and the number of windings 1220 is multiple. The iron core blocks 1210 and the windings 1220 correspond one by one. Multiple means two or more, the same hereinafter. The multiple iron core blocks 1210 are arranged in a surrounding and alternating manner. When the stator base 1100 is connected and fixed to the iron core assembly 1200 during the molding process, the material for manufacturing the stator base 1100 can be filled in the gaps between the iron core blocks 1210. For example, the space between adjacent iron core blocks 1210 is regarded as the gap between the iron core blocks 1210, or the remaining space in the winding grooves of the iron core blocks 1210 is regarded as the gap between the iron core blocks 1210. By such an arrangement, the connection strength between the stator base 1100 and the iron core assembly 1200 is enhanced, and it is more beneficial for heat to be transferred to the stator base 1100. It can be understood that since the windings 1220 are wound around the iron core blocks 1210, there may also be gaps between the iron core blocks 1210 and the windings 1220. The aforementioned remaining space in the winding grooves can also be regarded as the gap between the iron core blocks 1210 and the windings 1220. Therefore, the material for manufacturing the stator base 1100 can be filled in the gaps between the iron core blocks 1210 and the windings 1220, which is beneficial for heat to be transferred from the iron core blocks 1210 and the windings 1220 to the stator base 1100. And the windings 1220 are generally formed by winding enameled wires around the iron core blocks 1210 for multiple turns. There may also be gaps between adjacent enameled wires in the windings 1220. The material for manufacturing the stator base 1100 can be filled in the gaps of the windings 1220, which is beneficial for heat to be transferred from the windings 1220 to the stator base 1100.

[0042] In particular, the material for manufacturing the stator base 1100 can be filled in the gaps between the iron core blocks 1210, the gaps of the windings 1220, and the gaps between the iron core blocks 1210 and the windings 1220. In this way, the stator base 1100, the iron core blocks 1210, and the windings 1220 can form a solid structure, which is beneficial to enhancing the impact resistance performance of the stator 1000 and improving the heat dissipation performance.

[0043] Furthermore, combined with Figure 5 and Figure 6As shown, in some embodiments, the core block 1210 includes a first stopper 1211, a mounting portion 1213 and a second stopper 1212, the first stopper 1211 is arranged on one axial side of the mounting portion 1213, and the second stopper 1212 is arranged on the other axial side of the mounting portion 1213, so that the first stopper 1211, the mounting portion 1213 and the second stopper 1212 form an "I"-shaped structure, the winding 1220 is wound around the mounting portion 1213 and is located between the first stopper 1211 and the second stopper 1212, the first stopper 1211 and the second stopper 1212 form a restriction on the winding 1220 to prevent the winding 1220 from detaching from the mounting portion 1213, which is beneficial to improving the slot fill rate of the stator 1000, and the core block 1210 with the "I"-shaped structure is also beneficial to improving the utilization rate of materials.

[0044] Combination Figure 1 , Figure 2 and Figure 7 As shown, in some embodiments, the axial flux motor 100 also includes a rotor 2000, and the rotor 2000 includes a first magnet assembly 2100, a second magnet assembly 2200 and a rotating shaft 2300, the rotating shaft 2300 passes through the stator 1000 and is configured to be rotatable, the first magnet assembly 2100 is arranged on one axial side of the stator 1000, and the first magnet assembly 2100 is connected and fixed to the rotating shaft 2300, the first magnet assembly 2100 can drive the rotating shaft 2300 to rotate, the second magnet assembly 2200 is arranged on the other axial side of the stator 1000, and the second magnet assembly 2200 is connected and fixed to the rotating shaft 2300, the second magnet assembly 2200 can drive the rotating shaft 2300 to rotate.

[0045] Specifically, the first magnet assembly 2100 is disposed on one axial side of the stator 1000, and the second magnet assembly 2200 is disposed on the other axial side of the stator 1000, such that the stator 1000 is located between the first magnet assembly 2100 and the second magnet assembly 2200. The rotating shaft 2300 passes through the stator 1000 and is rotatably arranged. In this way, the first magnet assembly 2100 can support the rotating shaft 2300, and the second magnet assembly 2200 can also support the rotating shaft 2300. When the stator 1000 is powered on, the stator 1000 (iron core assembly 1200) can generate a changing magnetic field, thereby acting on the first magnet assembly 2100 and the second magnet assembly 2200, causing the first magnet assembly 2100 and the second magnet assembly 2200 to drive the rotating shaft 2300 to rotate. That is to say, the axial flux motor 100 of this embodiment constitutes a structure of a double-rotor single-stator. Since there are rotor structures (the first magnet assembly 2100 and the second magnet assembly 2200) on both axial sides of the stator 1000, the heat dissipation of the stator 1000 from its axial sides is limited. In this embodiment, through the cooperation of the stator base 1100 and the iron core assembly 1200, the heat of the iron core assembly 1200 can be transferred to the stator base 1100, overcoming the disadvantage of poor heat dissipation of the axial flux motor with a double-rotor single-stator in the related art.

[0046] Combined with Figure 2 and Figure 7 As shown, in some embodiments, the first magnet assembly 2100 includes a first rotor disk 2110 and a first permanent magnet 2120, and the first permanent magnet 2120 is fixed to the first rotor disk 2110. The first rotor disk 2110 is a skeleton structure for supporting the first permanent magnet 2120, and there are various structural shapes, which are not limited herein. The material of the first permanent magnet 2120 can be rare earth permanent magnet material, ferrite permanent magnet material, alnico alloy, FeCrCo alloy, etc., which are not limited herein. Since the first permanent magnet 2120 needs to interact with the magnetic field formed by the stator 1000, fixing the first permanent magnet 2120 on the side of the first rotor disk 2110 facing the stator 1000 is beneficial to improving the efficiency of the axial flux motor 100.

[0047] There are various ways to fix the first permanent magnet 2120 to the first rotor disk 2110. For example, the first permanent magnet 2120 is fixed to the first rotor disk 2110 by adhesion, which is convenient and fast. It can also be that the first permanent magnet 2120 is injection-molded and connected to the first rotor disk 2110. The so-called injection-molded connection means that the first rotor disk 2110 is combined with the first permanent magnet 2120 during the injection molding process, and the bonding strength is high.

[0048] Similarly, combined with Figure 2 and Figure 7As shown, in some embodiments, the second magnet assembly 2200 includes a second rotor disk 2210 and second permanent magnets 2220, and the second permanent magnets 2220 are fixed to the second rotor disk 2210. The second rotor disk 2210 is a framework structure for supporting the second permanent magnets 2220, and there are various structural shapes, which are not limited herein. The material of the second permanent magnets 2220 can be rare earth permanent magnet materials, ferrite permanent magnet materials, alnico alloys, FeCrCo alloys, etc., which are not limited herein. Since the second permanent magnets 2220 need to interact with the magnetic field formed by the stator 1000, fixing the second permanent magnets 2220 on the side of the second rotor disk 2210 facing the stator 1000 is beneficial to improving the efficiency of the axial flux motor 100.

[0049] There are various ways to fix the second permanent magnets 2220 to the second rotor disk 2210. For example, the second permanent magnets 2220 are fixed to the second rotor disk 2210 by adhesion, which is convenient and fast. It can also be that the second permanent magnets 2220 are injection-molded and connected to the second rotor disk 2210. The so-called injection molding connection means that the combination with the second permanent magnets 2220 is achieved during the injection molding process of the second rotor disk 2210, and the bonding strength is high.

[0050] Combined Figure 2 and Figure 7 As shown, in some embodiments, the rotor 2000 further includes a bushing 2400. The bushing 2400 is sleeved and fixed on the rotating shaft 2300. The first rotor disk 2110 is fixedly connected to the bushing 2400, and the second rotor disk 2210 is fixedly connected to the bushing 2400. Specifically, the first rotor disk 2110 is fixedly connected to the bushing 2400, so that the first magnet assembly 2100 is fixed on the bushing 2400. The second rotor disk 2210 is fixedly connected to the bushing 2400, so that the second magnet assembly 2200 is fixed on the bushing 2400. The bushing 2400 is sleeved and fixed on the rotating shaft 2300. There are various ways to fixedly connect the bushing 2400 and the rotating shaft 2300. Based on the bushing 2400 being sleeved onto the rotating shaft 2300, the bushing 2400 can be designed to have an interference fit with the rotating shaft 2300, which can conveniently and quickly realize the fixation between the bushing 2400 and the rotating shaft 2300. By setting it like this, when affected by the stator 1000, the first magnet assembly 2100 and the second magnet assembly 2200 can drive the rotating shaft 2300 to rotate. By providing the bushing 2400, not only can the installation of the first magnet assembly 2100 and the second magnet assembly 2200 be realized, but also the diameter of the rotating shaft 2300 can be prevented from being too large, which is beneficial to cost savings.

[0051] Combined Figure 2 、 Figure 7 and Figure 8As shown, a first stepped groove 2410 is provided on one axial side of the bushing 2400. The so-called first stepped groove 2410 is formed between one axial side of the bushing 2400 and the circumferential surface of the bushing 2400. When the first rotor disk 2110 is connected and fixed to the bushing 2400, the first rotor disk 2110 needs to be embedded in the first stepped groove 2410, so that the first rotor disk 2110 surrounds one axial end of the bushing 2400, which is beneficial to compressing the occupation of the axial space.

[0052] There are various connection methods between the first rotor disk 2110 and the bushing 2400, such as welding, clamping, screwing, etc. In this embodiment, the first rotor disk 2110 and the bushing 2400 are fixed by screw connection, that is, the first rotor disk 2110 and the bushing 2400 are respectively provided with corresponding holes, and the screw passes through the above holes to realize the connection and fixation between the first rotor disk 2110 and the bushing 2400. It can be understood that since the bushing 2400 is sleeved on the rotating shaft 2300 and the bushing 2400 protrudes radially relative to the rotating shaft 2300 along the radial direction of the rotating shaft 2300, in order to simplify the structure, the screw connection between the first rotor disk 2110 and the bushing 2400 is carried out along the axis of the axial flux motor 100 (the axis of the screw is the same as the axis of the axial flux motor 100). Especially when the first rotor disk 2110 is embedded in the first stepped groove 2410, it can also avoid occupying the radial space.

[0053] Combined Figure 2 、 Figure 7 and Figure 8 As shown, a second stepped groove 2420 is provided on the other axial side of the bushing 2400. The so-called second stepped groove 2420 is formed between the other axial side of the bushing 2400 and the circumferential surface of the bushing 2400. When the second rotor disk 2210 is connected and fixed to the bushing 2400, the second rotor disk 2210 needs to be embedded in the second stepped groove 2420, so that the second rotor disk 2210 surrounds the other axial end of the bushing 2400, which is beneficial to compressing the occupation of the axial space.

[0054] There are various connection methods between the second rotor disk 2210 and the shaft sleeve 2400, such as welding, clamping, screwing, etc. In this embodiment, the second rotor disk 2210 and the shaft sleeve 2400 are fixed by screwing, that is, corresponding holes are respectively provided on the second rotor disk 2210 and the shaft sleeve 2400, and the screw passes through the above holes to realize the connection and fixation between the second rotor disk 2210 and the shaft sleeve 2400. It can be understood that since the shaft sleeve 2400 is sleeved on the rotating shaft 2300 and the shaft sleeve 2400 protrudes radially along the rotating shaft 2300 relative to the rotating shaft 2300, in order to simplify the structure, the screw connection method between the second rotor disk 2210 and the shaft sleeve 2400 is carried out along the axis of the axial flux motor 100 (the axis of the screw is the same as the axis of the axial flux motor 100). Especially when the second rotor disk 2210 is embedded in the second step groove 2420, it can also avoid occupying the radial space.

[0055] Combined with Figure 1 and Figure 2 As shown, in some embodiments, the axial flux motor 100 includes a first end cover 3100 and a second end cover 3200. The first end cover 3100 is covered on one axial side of the stator 1000, and the first magnet assembly 2100 is arranged between the first end cover 3100 and the stator 1000. For example, the first end cover 3100 is connected to the stator base 1100 so that the first end cover 3100 is covered on one axial side of the stator 1000, which can not only form the protection of one axial side of the stator 1000, but also form the protection of the first magnet assembly 2100. The second end cover 3200 is arranged on the other axial side of the stator 1000, and the second magnet assembly 2200 is arranged between the second end cover 3200 and the stator 1000. For example, the second end cover 3200 is connected to the stator base 1100 so that the second end cover 3200 is covered on the other axial side of the stator 1000, which can not only form the protection of the other axial side of the stator 1000, but also form the protection of the second magnet assembly 2200. The first end cover 3100 and the second end cover 3200 cooperate with the stator base 1100 to constitute most of the external structure of the axial flux motor 100, so as to form the protection of the internal structure of the axial flux motor 100 and effectively prevent foreign objects from entering the interior of the axial flux motor 100. It can be understood that since the axial flux motor 100 needs to form an output through the rotating shaft 2300, the rotating shaft 2300 needs to pass through the first end cover 3100 and / or the second end cover 3200.

[0056] Furthermore, combined with Figures 1 to 4 and Figure 9 、 Figure 10As shown, in some embodiments, the stator base 1100 is provided with a first annular boss 1110. The first annular boss 1110 is arranged on one axial side of the stator base 1100. The first end cover 3100 is provided with a first annular groove 3110. When the first end cover 3100 covers one axial side of the stator base 1100, the first annular boss 1110 is embedded into the first annular groove 3110. Through the cooperation of the first annular boss 1110 and the first annular groove 3110, the assembly positioning between the first end cover 3100 and the stator 1000 is achieved, which facilitates further fastening. And through the concave-convex fit, the contact surface between the first end cover 3100 and the stator 1000 becomes longer, which is more conducive to the sealing between the first end cover 3100 and the stator 1000.

[0057] Similarly, the stator base 1100 is provided with a second annular boss 1120. The second annular boss 1120 is arranged on the other axial side of the stator base 1100. The second end cover 3200 is provided with a second annular groove 3210. When the second end cover 3200 covers the other axial side of the stator base 1100, the second annular boss 1120 is embedded into the second annular groove 3210. Through the cooperation of the second annular boss 1120 and the second annular groove 3210, the assembly positioning between the second end cover 3200 and the stator 1000 is achieved, which facilitates further fastening. And through the concave-convex fit, the contact surface between the second end cover 3200 and the stator 1000 becomes longer, which is more conducive to the sealing between the second end cover 3200 and the stator 1000. Similarly

[0058] Combined Figure 1 and Figure 2 As shown, the axial flux motor 100 further includes a first bearing 3300 and a second bearing 3400. The first bearing 3300 is sleeved on the rotating shaft 2300 and fixed to the first end cover 3100. The second bearing 3400 is sleeved on the rotating shaft 2300 and fixed to the second end cover 3200. By providing the first bearing 3300 and the second bearing 3400, the rotational support of the rotating shaft 2300 is realized. The first magnet assembly 2100 and the second magnet assembly 2200 can drive the rotating shaft 2300 to rotate under the action of the stator 1000, reducing the frictional resistance of the rotation of the rotating shaft 2300. There are various types of the first bearing 3300 and the second bearing 3400, which can be selected according to the actual situation. For example, both the first bearing 3300 and the second bearing 3400 are graphite bearings.

[0059] The second aspect of the present application discloses a household appliance. The household appliance includes the above-mentioned axial flux motor 100. The axial flux motor 100 includes a stator 1000. The stator 1000 includes a stator base 1100 and a core assembly 1200. The stator base 1100 is connected and fixed to the core assembly 1200 during the molding process.

[0060] The stator base 1100 is designed to be fixedly connected to the iron core assembly 1200 during the molding process. The molding process of the stator base 1100, that is, the process in which the material for manufacturing the stator base 1100 changes from a fluid state to a solid state. When the material for manufacturing the stator base 1100 changes from a fluid state to a solid state, the stator base 1100 can be formed, and the connection with the iron core assembly 1200 is realized synchronously during this process. The iron core assembly 1200 is embedded in the stator base 1100, so that the stator base 1100 and the iron core assembly 1200 are combined together. Compared with the related art in which the stator base 1100 and the iron core assembly 1200 are separately manufactured and then assembled together, the solution in this embodiment simplifies the manufacturing process of the stator 1000 and effectively improves the production efficiency. When the stator base 1100 is fixedly connected to the iron core assembly 1200 during the molding process, that is, the stator base 1100 and the iron core assembly 1200 are in contact. The heat of the iron core assembly 1200 can be transferred to the stator base 1100 and then dissipated to the outside, avoiding the accumulation of heat on the iron core assembly 1200.

[0061] By designing the stator base 1100 to be fixedly connected to the iron core assembly 1200 during the molding process, the stator base 1100 and the iron core assembly 1200 are integrated, and there is no need to separately manufacture the stator base 1100 and the iron core assembly 1200 and then assemble them. In this way, the manufacturing process of the stator 1000 is simplified, the number of components is reduced, which is beneficial to improving the production efficiency. By such setting, not only the connection and fixation between the stator base 1100 and the iron core assembly 1200 can be simplified, but also the heat dissipation of the stator 1000 can be enhanced.

[0062] It can be understood that the household appliance can be of various types such as a range hood, a washing machine, a dishwasher, a fan, etc. The axial flux motor 100 of the household appliance in this embodiment adopts the technical solution of the above embodiment, so it has at least the beneficial effects brought by the technical solution of the above embodiment, which will not be repeated here.

[0063] The above are only the preferred embodiments of the present application, and do not limit the patent scope of the present application. Any equivalent structural transformation made under the concept of the present application by using the content of the specification and drawings of the present application, or directly / indirectly applied in other related technical fields, is included in the patent protection scope of the present application.

Claims

1. An axial flux motor (100), characterized in that, Comprising a stator (1000), the stator (1000) includes a stator base (1100) and a core assembly (1200), the core assembly (1200) includes a plurality of core blocks (1210) and a plurality of windings (1220), the plurality of core blocks (1210) are arranged in an annular and alternating manner, the windings (1220) are wound around the core blocks (1210), the stator base (1100) is adapted to be connected and fixed to the core assembly (1200) during the molding process, and a part of the stator base (1100) is embedded in the gaps between the core blocks (1210), the gaps between the windings (1220), and the gaps between the core blocks (1210) and the windings (1220).

2. The axial flux motor (100) according to claim 1, characterized in that, The material of the stator base (1100) is bulk molding compound.

3. The axial flux motor (100) according to claim 1, characterized in that, The core block (1210) includes a mounting portion (1213), a first blocking portion (1211), and a second blocking portion (1212), the first blocking portion (1211) is provided on one axial side of the mounting portion (1213), the second blocking portion (1212) is provided on the other axial side of the mounting portion (1213), and the winding (1220) is wound around the mounting portion (1213) and is located between the first blocking portion (1211) and the second blocking portion (1212).

4. The axial flux motor (100) according to claim 1, characterized in that, The axial flux motor (100) further includes a rotor (2000), the rotor (2000) includes a first magnet assembly (2100), a second magnet assembly (2200), and a rotating shaft (2300), the rotating shaft (2300) passes through the stator (1000) and is rotatably arranged, the first magnet assembly (2100) is provided on one axial side of the stator (1000) and is fixed to the rotating shaft (2300), and the second magnet assembly (2200) is provided on the other axial side of the stator (1000) and is fixed to the rotating shaft (2300).

5. The axial flux motor (100) according to claim 4, characterized in that, The first magnet assembly (2100) includes a first rotor disc (2110) and a first permanent magnet (2120) fixed to the first rotor disc (2110), and the second magnet assembly (2200) includes a second rotor disc (2210) and a second permanent magnet (2220) fixed to the second rotor disc (2210); The rotor (2000) further includes a shaft sleeve (2400), the shaft sleeve (2400) is sleeved and fixed on the rotating shaft (2300), the first rotor disc (2110) is connected and fixed to the shaft sleeve (2400), and the second rotor disc (2210) is connected and fixed to the shaft sleeve (2400).

6. The axial flux motor (100) according to claim 5, characterized in that, A first stepped groove (2410) is provided on one axial side of the shaft sleeve (2400), a second stepped groove (2420) is provided on the other axial side of the shaft sleeve (2400), the first rotor disc (2110) is embedded in the first stepped groove (2410), and the second rotor disc (2210) is embedded in the second stepped groove (2420); And / or, the first rotor disk (2110) and the shaft sleeve (2400) are screwed together along the axial direction of the axial flux motor (100), and the second rotor disk (2210) and the shaft sleeve (2400) are screwed together along the axial direction of the axial flux motor (100).

7. The axial flux motor (100) according to claim 4, characterized in that, The axial flux motor (100) further includes a first end cover (3100) and a second end cover (3200). The first end cover (3100) is disposed on one axial side of the stator (1000), and the first magnet assembly (2100) is disposed between the first end cover (3100) and the stator (1000). The second end cover (3200) is disposed on the other axial side of the stator (1000), and the second magnet assembly (2200) is disposed between the second end cover (3200) and the stator (1000).

8. The axial flux motor (100) according to claim 7, characterized in that, The stator base (1100) is provided with a first annular boss (1110) and a second annular boss (1120). The first end cover (3100) is provided with a first annular groove (3110). The first annular boss (1110) is adapted to be embedded in the first annular groove (3110) when the first end cover (3100) is disposed on one axial side of the stator (1000). The second end cover (3200) is provided with a second annular groove (3210). The second annular boss (1120) is adapted to be embedded in the second annular groove (3210) when the second end cover (3200) is disposed on the other axial side of the stator (1000).

9. The axial flux motor (100) according to claim 7, characterized in that, The axial flux motor (100) further includes a first bearing (3300) and a second bearing (3400). The first bearing (3300) is sleeved on the rotating shaft (2300) and fixed to the first end cover (3100). The second bearing (3400) is sleeved on the rotating shaft (2300) and fixed to the second end cover (3200). The rotating shaft (2300) is rotatably arranged relative to the first bearing (3300) and the second bearing (3400).

10. A household appliance, characterized in that, Comprising the axial flux motor (100) according to any one of claims 1 to 9.

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