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 casing, an iron core assembly and a pouring sealant, the iron core assembly is arranged in the casing, a first space is formed between the iron core assembly and the casing, the iron core assembly comprises an iron core and a winding arranged on the iron core, and the winding is arranged in the casing. The pouring sealant is filled in the first space so as to connect and fix the casing and the iron core assembly, and the pouring sealant is also filled in the gaps of the iron cores, the gaps of the windings and the gaps between the iron cores and the windings. According to the technical scheme, the casing and the iron core assembly are connected by pouring the pouring sealant into the first space, the assembling relation between the casing and the iron core assembly is simplified, meanwhile, the casing and the iron core assembly are contacted through the pouring sealant, heat of the iron core assembly can be transmitted to the casing through the pouring sealant, and therefore the heat dissipation capacity of the stator is improved.

Description

Technical Field

[0001] This 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 housing needs to be designed with a corresponding assembly structure, and the iron core assembly is assembled to the housing in correspondence with the assembly structure to form a stator. The provision of the assembly structure not only makes the structural design of the housing complex, but also makes the assembly between the iron core assembly and the housing troublesome. Summary of the Utility Model

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

[0004] To achieve the above object, this application discloses an axial-flux motor, which includes a stator, and the stator includes:

[0005] A housing;

[0006] An iron core assembly, which is arranged inside the housing and forms a first space between the iron core assembly and the housing. The iron core assembly includes an iron core and windings arranged on the iron core; and

[0007] Potting glue, which is filled in the first space to connect and fix the housing and the iron core assembly. The potting glue is also filled in the gaps of the iron core, the gaps of the windings, and the gaps between the iron core and the windings.

[0008] In some embodiments of this application, the potting glue filled in the gaps of the iron core, the gaps of the windings, the gaps between the iron core and the windings, and the first space is integrated.

[0009] In some embodiments of this application, the iron core assembly includes an iron core, and the iron core is a segmented iron core or a wound iron core.

[0010] In some embodiments of this application, the axial-flux motor further includes a rotor, which includes a rotating shaft, a first magnet assembly, and a second magnet assembly. The rotating shaft passes through the stator and is rotatably arranged. The first magnet assembly is arranged on one axial side of the stator and fixed to the rotating shaft, and the second magnet assembly is arranged on the other axial side of the stator and fixed to the rotating shaft.

[0011] In some embodiments of this application, the first magnet assembly includes a first rotor disk and a first permanent magnet fixed to the first rotor disk, and the second magnet assembly includes a second rotor disk and a second permanent magnet fixed to the second rotor disk.

[0012] In some embodiments of the present application, the first permanent magnet is bonded to the first rotor disk, and the second permanent magnet is bonded to the second rotor disk.

[0013] In some embodiments of the present application, 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.

[0014] In some embodiments of the present application, the bushing and the rotating shaft are in interference fit.

[0015] In some embodiments of the present application, a first stepped groove is provided on one axial side of the bushing, and 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.

[0016] In some embodiments of the present application, the first rotor disk and the bushing are screw-connected along the axis of the axial-flux motor, and the second rotor disk and the bushing are screw-connected along the axis of the axial-flux motor.

[0017] 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.

[0018] 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, and the rotating shaft is rotatably disposed relative to the first bearing and the second bearing.

[0019] A second aspect of the present application discloses a household appliance, and the household appliance includes the above-mentioned axial-flux motor.

[0020] The technical solution of the present application realizes the connection between the machine shell and the iron core assembly by pouring potting glue into the first space, simplifies the assembly relationship between the machine shell and the iron core assembly. At the same time, the potting glue also fills the gaps between the iron cores, the gaps between the windings, and the gaps between the iron cores and the windings, so that the machine shell, the iron core, the windings and the potting glue form a solid structure, improving the connection stability of the iron core assembly, enhancing the impact resistance of the stator, and the potting glue realizes the contact between the machine shell and the iron core, the windings, and the potting glue can transfer the heat of the iron core assembly to the machine shell, thereby improving the heat dissipation capacity of the stator.

[0021] Other advantages of the present application will be partially given in the following description, partially become obvious from the following description, or be learned through the practice of the present application. Description of the Drawings

[0022] In order 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 use in 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 also be obtained based on the structures shown in these drawings.

[0023] Figure 1 Is the exploded view of the axial flux motor in some embodiments;

[0024] Figure 2 Is the cross-sectional view of the axial flux motor in some embodiments;

[0025] Figure 3 Is the exploded view of the stator in some embodiments;

[0026] Figure 4 Is the exploded view of the rotor in some embodiments;

[0027] Figure 5 Is the cross-sectional view of the bushing in some embodiments.

[0028] Explanation of the reference numerals in the drawings:

[0029] Axial flux motor 100, stator 1000, housing 1100, iron core assembly 1200, iron core 1210, winding 1220, potting compound 1300, rotor 2000, first magnet assembly 2100, first rotor disk 2110, first permanent magnet 2120, second magnet assembly 2200, second rotor disk 2210, second permanent magnet 2220, rotating shaft 2300, bushing 2400, first step groove 2410, second step groove 2420, first end cover 3100, second end cover 3200, first bearing 3300, second bearing 3400.

[0030] The realization of the purpose, functional characteristics and advantages of the present application will be further described in conjunction with the embodiments with reference to the drawings. Detailed Embodiments

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present application in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only some embodiments of the present application, rather than all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present application.

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

[0033] In the present application, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should 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 communication inside 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 the present application can be understood according to specific situations.

[0034] In addition, in the present application, descriptions such as "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" can explicitly or implicitly include at least one such feature. In addition, 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 protection scope required by the present application.

[0035] The first aspect of the present application discloses an axial flux motor 100, in combination with Figure 1 and Figure 2 As shown, the axial flux motor 100 includes a stator 1000. The stator 1000 includes a housing 1100, a core assembly 1200, and potting glue 1300. The core assembly 1200 is arranged inside the housing 1100, and a first space is formed between the core assembly 1200 and the housing 1100. The potting glue 1300 is filled in the first space to connect and fix the housing 1100 and the core assembly 1200.

[0036] By pouring the potting glue 1300 into the first space to realize the connection between the housing 1100 and the core assembly 1200, the assembly relationship between the housing 1100 and the core assembly 1200 is simplified. At the same time, the potting glue 1300 realizes the contact between the housing 1100 and the core assembly 1200, and the potting glue 1300 can transfer the heat of the core assembly 1200 to the housing 1100, thereby improving the heat dissipation capacity of the stator 1000.

[0037] 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 extending direction of 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 housing 1100 and a core assembly 1200. The housing 1100 can be understood as the skeleton structure of the stator 1000. Other components of the stator 1000 are installed on the housing 1100. The housing 1100 protects other components of the stator 1000. The housing 1100 can be made of various materials, such as plastic materials, metal materials or other materials. Generally, the axial flux motor 100 is connected and fixed to the installation area through the housing 1100, thereby realizing the support of the axial flux motor 100. Figure 2 In the related art, the housing 1100 needs to be designed with a complex assembly structure for the core assembly 1200, and it is rather troublesome to assemble the core assembly 1200 into the housing 1100. In this embodiment, in order to simplify the assembly of the core assembly 1200 and the housing 1100, it is achieved by potting glue 1300. There are various types of potting glue 1300, such as epoxy resin potting glue 1300, silicone resin potting glue 1300 or polyurethane potting glue 1300, etc. The core assembly 1200 is arranged inside the housing 1100, and a first space is formed between the core assembly 1200 and the housing 1100. That is, when the core assembly 1200 is placed inside the housing 1100, the circumferential surface of the core assembly 1200 and the housing 1100 are not completely in contact, but there is a certain gap, and this gap constitutes the first space. The potting glue 1300 is injected into this first space. After the potting glue 1300 is cured, it can realize the connection and fixation with the housing 1100 and also with the core assembly 1200. In this way, the connection and fixation between the housing 1100 and the core assembly 1200 are realized, making the housing 1100 and the core assembly 1200 form an integral body. Compared with the related art, this embodiment can greatly reduce the assembly difficulty of the housing 100 and the core assembly 1200. Generally, in order to achieve good fixation of the core assembly 1200, the first space needs to surround the core assembly 1200. In this way, in the direction of surrounding the core assembly 1200, the potting glue 1300 can realize the connection and fixation between the housing 1100 and the core assembly 1200, improving the fixation effect on the core assembly 1200.

[0038]

[0039] ​In addition, in the related art, the heat transfer between the iron core assembly 1200 and the housing 1100 mainly relies on air. Air heat transfer 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 potting adhesive 1300 has better heat conduction performance than air. After curing, the potting adhesive 1300 can contact with the housing 1100 and the iron core assembly 1200. The potting adhesive 1300 can transfer the heat of the iron core assembly 1200 to the housing 1100, and then the heat is dissipated to the outside, avoiding the accumulation of heat on the iron core assembly 1200.

[0040] It can be seen that by filling the potting adhesive 1300 in the first space, the connection between the housing 1100 and the iron core assembly 1200 is realized, which simplifies the assembly relationship between the housing 1100 and the iron core assembly 1200. At the same time, the potting adhesive 1300 realizes the contact between the housing 1100 and the iron core assembly 1200. The potting adhesive 1300 can transfer the heat of the iron core assembly 1200 to the housing 1100, thereby improving the heat dissipation capacity of the stator 1000. Through the setting of the potting adhesive 1300, the connection and fixation between the housing 1100 and the iron core assembly 1200 can be simplified, and the heat dissipation of the stator 1000 can also be enhanced.

[0041] Combined with Figure 3 As shown, in some embodiments, the iron core assembly 1200 includes an iron core 1210 and a winding 1220. The winding 1220 is arranged on the iron core 1210. The iron core 1210 can be a segmented iron core 1210 or a wound iron core 1210. It can be understood that before filling the potting adhesive 1300, a tooling is needed to realize the relative positioning between the housing 1100 and the iron core assembly 1200 to ensure the relative fixation between the housing 1100 and the iron core assembly 1200, and then the potting adhesive 1300 is filled. If the iron core 1210 is a segmented iron core 1210, the segmented iron core 1210 has multiple iron core blocks, and each iron core block needs to be positioned, which is more troublesome and not conducive to improving the production efficiency. If the iron core 1210 is a wound iron core 1210, the wound iron core 1210 forms an integral body, and the positioning with the tooling is much simpler than that of the segmented iron core 1210, which is conducive to improving the production efficiency, and the wound iron core 1210 is conducive to improving the utilization rate of the iron core material. When the iron core 1210 is a wound iron core 1210 and the axial flux motor 100 is in the form of a double-rotor single-stator, the notch can be processed after filling the potting adhesive 1300 to ensure that the notches on both axial sides of the iron core 1210 are consistent. For example, a notch is formed on one axial side of the iron core 1210 and the other axial side is connected to form a wound iron core 1210. After filling the potting adhesive 1300, a notch is processed on the other side of the iron core 1210 to ensure that there are notches on both axial sides of the iron core 1210. At this time, the iron core 1210 is changed to a segmented iron core 1210.

[0042] Furthermore, the potting adhesive 1300 is filled in the gaps of the iron core 1210. It can be understood that the iron core 1210 has tooth portions and winding grooves, the winding grooves are arranged between adjacent tooth portions, the winding 1220 winds around the tooth portions of the iron core 1210 and is thus accommodated in the winding grooves, and the remaining space in the winding grooves can be regarded as the gaps of the iron core 1210. Of course, the gaps of the iron core 1210 can also be other cavities formed by the iron core 1210, such as the gaps formed between adjacent iron cores 1210. By filling the potting adhesive 1300 in the gaps of the iron core 1210, it is more conducive to the heat transfer from the iron core 1210 to the potting adhesive 1300 and then to the machine shell 1100. It can be understood that the winding 1220 is fixed to the iron core 1210 by winding, so there may also be gaps between the winding 1220 and the iron core 1210. The remaining space in the aforementioned winding grooves can also be regarded as the gaps between the winding 1220 and the iron core 1210. By filling the potting adhesive 1300 in the gaps between the iron core 1210 and the winding 1220, it is conducive to the heat transfer from the iron core 1210 and the winding 1220 to the potting adhesive 1300 and then to the machine shell 1100. The winding 1220 is generally formed by winding an enameled wire around the tooth portions of the iron core 1210 for multiple turns, and there may also be gaps between adjacent enameled wires in the winding 1220. By filling the potting adhesive 1300 in the gaps of the winding 1220, it is conducive to the heat transfer from the winding 1220 to the potting adhesive 1300 and then to the machine shell 1100.

[0043] In particular, the potting adhesive 1300 can be filled in the gaps of the iron core 1210, the gaps of the winding 1220, and the gaps between the iron core 1210 and the winding 1220. In this way, the machine shell 1100, the iron core 1210, the winding 1220, and the potting adhesive 1300 can form a solid structure, which is conducive to enhancing the impact resistance of the stator 1000.

[0044] Furthermore, the potting adhesive 1300 filled in the gaps of the iron core 1210, the gaps of the winding 1220, the gaps between the iron core 1210 and the winding 1220, and the first space is integrated. The so-called integration means that the potting adhesive 1300 is in contact before curing and forms a whole after curing. In this way, the connection and fixing effect between the machine shell 1100 and the iron core assembly 1200 can be strengthened, the connection and fixing effect of the iron core assembly 1200 can be improved, the heat dissipation capacity can be further enhanced, and even the potting adhesive 1300 can be designed to wrap the iron core assembly 1200. In this way, a good protection effect can be formed on the iron core assembly 1200.

[0045] Combined with Figure 1 、 Figure 2 and Figure 4As shown, in some embodiments, 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 configured to be rotatably arranged. The first magnet assembly 2100 is arranged on one axial side of the stator 1000 and is fixedly connected 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 is fixedly connected to the rotating shaft 2300. The second magnet assembly 2200 can drive the rotating shaft 2300 to rotate.

[0046] Specifically, the first magnet assembly 2100 is arranged on one axial side of the stator 1000, and the second magnet assembly 2200 is arranged on the other axial side of the stator 1000, so 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 energized, the stator 1000 can generate a changing magnetic field, thereby acting on the first magnet assembly 2100 and the second magnet assembly 2200, so that the first magnet assembly 2100 and the second magnet assembly 2200 drive the rotating shaft 2300 to rotate. That is to say, the axial flux motor 100 of this embodiment constitutes a structure form of a double-rotor single-stator. Since there are rotor structures (the first magnet assembly 2100, 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, by providing the potting glue 1300, the heat of the iron core assembly 1200 can be transferred to the potting glue 1300 and then to the housing 1100, overcoming the disadvantage of poor heat dissipation of the axial flux motor with a double-rotor single-stator in the related art.

[0047] Combined with Figure 2 and Figure 4 As shown, in some embodiments, the first magnet assembly 2100 includes a first rotor disk 2110 and a first permanent magnet 2120. 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, Fe-Cr-Co 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.

[0048] There are various ways to fix the first permanent magnet 2120 to the first rotor disk 2110. For example, the first permanent magnet 2120 can be 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 combination with the first permanent magnet 2120 is realized during the injection molding process of the first rotor disk 2110, and the bonding strength is high.

[0049] Similarly, Figure 2 and Figure 4 As shown in the figure, in some embodiments, the second magnet assembly 2200 includes a second rotor disk 2210 and a second permanent magnet 2220, and the second permanent magnet 2220 is fixed to the second rotor disk 2210. The second rotor disk 2210 is a skeleton structure for supporting the second permanent magnet 2220, and there are various structural shapes, which are not limited herein. The material of the second permanent magnet 2220 can be rare earth permanent magnet material, ferrite permanent magnet material, alnico alloy, Fe-Cr-Co alloy, etc., which are not limited herein. Since the second permanent magnet 2220 needs to interact with the magnetic field formed by the stator 1000, fixing the second permanent magnet 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.

[0050] There are various ways to fix the second permanent magnet 2220 to the second rotor disk 2210. For example, the second permanent magnet 2220 can be fixed to the second rotor disk 2210 by adhesion, which is convenient and fast. It can also be that the second permanent magnet 2220 is injection-molded and connected to the second rotor disk 2210. The so-called injection-molded connection means that the combination with the second permanent magnet 2220 is realized during the injection molding process of the second rotor disk 2210, and the bonding strength is high.

[0051] Combined with Figure 2 and Figure 4As 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 in this way, when acted upon 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.

[0052] Combined with Figure 2 、 Figure 4 and Figure 5 As 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 fixedly connected to the bushing 2400, the first rotor disk 2110 needs to be embedded into the first stepped groove 2410, so that the first rotor disk 2110 surrounds one axial end of the bushing 2400, which is beneficial to reducing the occupation of axial space.

[0053] 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 means of screw connection, that is, corresponding holes are provided on the first rotor disk 2110 and the bushing 2400 respectively, 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 onto the rotating shaft 2300, the bushing 2400 protrudes radially along the rotating shaft 2300 relative to the rotating shaft 2300. For the sake of simplifying the structure, the screw connection between the first rotor disk 2110 and the bushing 2400 is carried out along the axial direction of the axial flux motor 100 (the axial direction of the screw is the same as the axial direction 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 the occupation of radial space.

[0054] Combined withFigure 2 , Figure 4 and Figure 5 As shown in Figure 2 , Figure 4 and Figure 5 , 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 disc 2210 is connected and fixed to the bushing 2400, the second rotor disc 2210 needs to be embedded in the second stepped groove 2420, so that the second rotor disc 2210 surrounds the other axial end of the bushing 2400, which is beneficial to compress the occupation of the axial space.

[0055] There are various connection methods between the second rotor disc 2210 and the bushing 2400, such as welding, clamping, screwing, etc. In this embodiment, the second rotor disc 2210 and the bushing 2400 are fixed by screwing. That is, the second rotor disc 2210 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 second rotor disc 2210 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 along the rotating shaft 2300 relative to the rotating shaft 2300, in order to simplify the structure, the screwing connection method between the second rotor disc 2210 and the bushing 2400 is 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 disc 2210 is embedded in the second stepped groove 2420, it can also avoid occupying the radial space.

[0056] Combined with Figure 1 and Figure 2As 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 disposed 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 housing 1100 so that the first end cover 3100 covers one axial side of the stator 1000, which can not only form protection for one axial side of the stator 1000 but also form protection for the first magnet assembly 2100. The second end cover 3200 is provided 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 housing 1100 so that the second end cover 3200 covers the other axial side of the stator 1000, which can not only form protection for the other axial side of the stator 1000 but also form protection for the second magnet assembly 2200. The first end cover 3100 and the second end cover 3200 cooperate with the housing 1100 to constitute most of the outer structure of the axial flux motor 100, thereby forming protection for the internal structure of the axial flux motor 100 and effectively preventing external debris 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.

[0057] Further, as shown in combination with Figure 1 and Figure 2 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, and 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 then 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.

[0058] 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, and the stator 1000 includes a housing 1100, an iron core assembly 1200 and a potting adhesive 1300. The iron core assembly 1200 is disposed inside the housing 1100, and a first space is formed between the iron core assembly 1200 and the housing 1100. The potting adhesive 1300 fills the first space to connect and fix the housing 1100 and the iron core assembly 1200.

[0059] The connection between the casing 1100 and the iron core assembly 1200 is realized by pouring potting adhesive 1300 into the first space, which simplifies the assembly relationship between the casing 1100 and the iron core assembly 1200. At the same time, the potting adhesive 1300 realizes the contact between the casing 1100 and the iron core assembly 1200. The potting adhesive 1300 can transfer the heat of the iron core assembly 1200 to the casing 1100, thereby improving the heat dissipation capacity of the stator 1000.

[0060] 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.

[0061] 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 by using the content of the specification and drawings of the present application under the concept of the present application, or direct / indirect application 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, The axial flux motor (100) includes a stator (1000), and the stator (1000) includes: a housing (1100); a core assembly (1200) disposed inside the housing (1100) and defining a first space between the core assembly (1200) and the housing (1100), the core assembly (1200) including a core (1210) and windings (1220) disposed on the core (1210); and a potting adhesive (1300) filled in the first space to connect and fix the housing (1100) and the core assembly (1200), and the potting adhesive (1300) is also filled in the gaps of the core (1210), the gaps of the windings (1220), and the gaps between the core (1210) and the windings (1220).

2. The axial flux motor (100) according to claim 1, characterized in that, The potting adhesive (1300) filled in the gaps of the core (1210), the gaps of the windings (1220), the gaps between the core (1210) and the windings (1220), and the first space is integrated.

3. The axial flux motor (100) according to claim 1, characterized in that, The core assembly (1200) includes a core (1210), and the core (1210) is a segmented core (1210) or a wound core (1210).

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 rotating shaft (2300), a first magnet assembly (2100), and a second magnet assembly (2200), the rotating shaft (2300) passes through the stator (1000) and is rotatably disposed, the first magnet assembly (2100) is disposed on one axial side of the stator (1000) and fixed to the rotating shaft (2300), and the second magnet assembly (2200) is disposed on the other axial side of the stator (1000) and 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 disk (2110) and a first permanent magnet (2120) fixed to the first rotor disk (2110), and the second magnet assembly (2200) includes a second rotor disk (2210) and a second permanent magnet (2220) fixed to the second rotor disk (2210).

6. The axial flux motor (100) according to claim 5, characterized in that, The first permanent magnet (2120) is bonded to the first rotor disk (2110), and the second permanent magnet (2220) is bonded to the second rotor disk (2210).

7. The axial flux motor (100) according to claim 5, characterized in that, 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 connected and fixed to the bushing (2400), and the second rotor disk (2210) is connected and fixed to the bushing (2400).

8. The axial flux motor (100) according to claim 7, characterized in that, The bushing (2400) and the rotating shaft (2300) are in interference fit; And / or, a first stepped groove (2410) is provided on one axial side of the bushing (2400), a second stepped groove (2420) is provided on the other axial side of the bushing (2400), the first rotor disk (2110) is embedded in the first stepped groove (2410), and the second rotor disk (2210) is embedded in the second stepped groove (2420); And / or, the first rotor disk (2110) and the bushing (2400) are connected by screws along the axial direction of the axial flux motor (100), and the second rotor disk (2210) and the bushing (2400) are connected by screws along the axial direction of the axial flux motor (100).

9. 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) covers one axial side of the stator (1000), the first magnet assembly (2100) is disposed between the first end cover (3100) and the stator (1000), the second end cover (3200) covers 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).

10. The axial flux motor (100) according to claim 9, 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), and the rotating shaft (2300) is rotatably arranged relative to the first bearing (3300) and the second bearing (3400).

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

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