Driving device and household appliance

Abstract

The utility model discloses a driving device and a household electrical appliance, the driving device comprises an axial magnetic flux motor, a first load and a second load, one axial side of the axial magnetic flux motor is suitable for driving the first load to rotate, and the other axial side of the axial magnetic flux motor is suitable for driving the second load to rotate. The axial magnetic flux motor comprises a first rotor, a second rotor, a stator and a shell, the stator is arranged between the first rotor and the second rotor, and the shell and the stator are connected through injection molding. According to the technical scheme, the axial magnetic flux motor is adopted, output can be formed on one axial side of the axial magnetic flux motor, output can also be formed on the other axial side of the axial magnetic flux motor, the first load is matched with the axial side of the axial magnetic flux motor and driven by the axial side of the axial magnetic flux motor, and the second load is matched with the other axial side of the axial magnetic flux motor and driven by the axial side of the axial magnetic flux motor. The first load and the second load can be driven through the same axial magnetic flux motor, the number of motors is reduced, and reduction of space occupation of the driving device and reduction of cost are facilitated.

Description

Technical Field

[0001] This application relates to the technical field of motors, and particularly to a driving device and a household appliance. Background Art

[0002] In related technologies, when it is necessary to drive two targets, two independent motors are often set up. One motor drives one target, and the other motor drives the other target, thus forming two sets of systems. Since two motors are set up, the volume occupied is relatively large and the cost is relatively high. Summary of the Utility Model

[0003] This application aims to solve at least one of the technical problems in the related technologies to some extent. For this purpose, this application proposes a driving device.

[0004] To achieve the above object, this application discloses a driving device, which includes:

[0005] An axial-flux motor, which includes a first rotor, a second rotor, a stator and a housing. The stator is arranged between the first rotor and the second rotor, and the housing and the stator are injection-molded and connected;

[0006] A first load, and one axial side of the axial-flux motor is adapted to drive the first load to rotate; and

[0007] A second load, and the other axial side of the axial-flux motor is adapted to drive the second load to rotate.

[0008] In some embodiments of this application, the axial-flux motor includes:

[0009] Bearings, arranged on the housing; and

[0010] A shaft body, passing through the bearings. The first rotor and the second rotor are supported on the shaft body and are adapted to drive the shaft body to rotate.

[0011] In some embodiments of this application, the housing and the bearings are injection-molded and connected.

[0012] In some embodiments of this application, the bearings include a first bearing and a second bearing arranged alternately, and the shaft body passes through the first bearing and the second bearing.

[0013] In some embodiments of this application, the first load and the second load are supported on the shaft body, and the shaft body is adapted to drive the first load and the second load to rotate.

[0014] In some embodiments of this application, the first rotor is sleeved and fixed on the shaft body;

[0015] And / or, the second rotor is sleeved and fixed on the shaft body;

[0016] And / or, the first load is sleeved and fixed on the shaft body;

[0017] And / or, the second load is sleeved and fixed on the shaft body.

[0018] In some embodiments of the present application, the first rotor includes a first support plate and a first permanent magnet disposed on the first support plate, and the first permanent magnet is disposed on a side of the first support plate facing the stator;

[0019] And / or, the second rotor includes a second support plate and a second permanent magnet disposed on the second support plate, and the second permanent magnet is disposed on a side of the second support plate facing the stator.

[0020] In some embodiments of the present application, the first support plate and the first permanent magnet of the first rotor are injection-molded and connected;

[0021] And / or, the second support plate and the second permanent magnet of the second rotor are injection-molded and connected.

[0022] In some embodiments of the present application, the first load is adapted to drive fluid flow;

[0023] And / or, the second load is adapted to drive fluid flow.

[0024] In some embodiments of the present application, the first load is an impeller;

[0025] And / or, the second load is an impeller.

[0026] In some embodiments of the present application, the first load is a centrifugal impeller;

[0027] And / or, the second load is a centrifugal impeller.

[0028] In some embodiments of the present application, the first load and the first rotor are disposed in the same cavity;

[0029] And / or, the second load and the second rotor are disposed in the same cavity.

[0030] A second aspect of the present application discloses a household appliance, and the household appliance includes the above-mentioned driving device.

[0031] In the technical solution of this application, an axial-flux motor is adopted. An output can be formed on one axial side of the axial-flux motor, and an output can also be formed on the other axial side of the axial-flux motor. The first load is cooperated with and driven by one axial side of the axial-flux motor, and the second load is cooperated with and driven by the other axial side of the axial-flux motor. The same axial-flux motor can be used to drive the first load and the second load, reducing the number of motors, which is beneficial to reducing the space occupied by the driving device and reducing costs.

[0032] Other advantages of this application will be partially given in the following description, partially will become obvious from the following description, or can be understood through the practice of this application. Brief Description of the Drawings

[0033] In order to more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the following will briefly introduce the drawings required to be used in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of this 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.

[0034] Figure 1 Schematic diagram of the driving device in some embodiments;

[0035] Figure 2 Exploded view of the driving device in some embodiments;

[0036] Figure 3 Cross-sectional view of the driving device in some embodiments;

[0037] Figure 4 Schematic diagram of the combination of the housing, stator and bearing in some embodiments;

[0038] Figure 5 Schematic diagram of the combination of the housing, stator and bearing in some embodiments (view angle is Figure 4 different);

[0039] Figure 6 Schematic diagram of the first rotor / second rotor in some embodiments;

[0040] Figure 7 Schematic diagram of the first rotor / second rotor in some embodiments (view angle is Figure 6 different);

[0041] Figure 8 Schematic diagram of the first load / second load in some embodiments.

[0042] Explanation of the reference numerals in the drawings:

[0043] Drive device 100, axial flux motor 1000, first rotor 1100, first permanent magnet 1110, first support plate 1120, second rotor 1200, second permanent magnet 1210, second support plate 1220, stator 1300, housing 1400, bearing 1500, first bearing 1510, second bearing 1520, shaft body 1600, first load 2100, second load 2200.

[0044] The realization, functional features and advantages of the purpose of this application will be further described in conjunction with the embodiments with reference to the accompanying drawings. Detailed implementation manners

[0045] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a 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 of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0046] It should be noted that all the directional indications (such as up, down, left, right, front, back,...) in the embodiments of the present 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 the specific posture changes, the directional indications will also change accordingly.

[0047] In the present application, unless otherwise clearly defined 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 internal connection 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 the present application can be understood according to specific circumstances.

[0048] In addition, in the present application, descriptions such as "first" and "second" 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, features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement it. When the combination of technical solutions is contradictory 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.

[0049] A first aspect of the present application proposes a drive device 100, in combination with Figure 1and Figure 2 As shown, in some embodiments, the driving device 100 includes an axial flux motor 1000, a first load 2100, and a second load 2200. One axial side of the axial flux motor 1000 is used to drive the first load 2100 to rotate, and the other axial side of the axial flux motor 1000 drives the second load 2200 to rotate.

[0050] The axial flux motor 1000 is different from the radial flux motor. The magnetic flux lines of the axial flux motor 1000 mainly extend along the axial direction, and here the axial direction refers to the extension direction of the shaft body 1600 of the central axis ( Figure 1 of the axial flux motor 1000). An output can be formed on one axial side of the axial flux motor 1000, and an output can also be formed on the other axial side of the axial flux motor 1000. The first load 2100 cooperates with one axial side of the axial flux motor 1000, and the second load 2200 cooperates with the other axial side of the axial flux motor 1000. The so-called cooperation can be direct cooperation or indirect cooperation, that is, one axial side of the axial flux motor 1000 can transmit force to the first load 2100, and the other axial side of the axial flux motor 1000 can transmit force to the second load 2200. In this way, the first load 2100 and the second load 2200 can be driven to rotate by the same axial flux motor 1000. By such a setting, the number of motors is reduced, which is beneficial to reducing the space occupied by the driving device 100 and reducing costs.

[0051] It can be understood that the so-called first load 2100 is a component that is driven by the axial flux motor 1000 to generate an action. The first load 2100 can be the final target object or a transmission part between the final target object and the axial flux motor 1000. Similarly, the second load 2200 is also the same, and will not be repeated here.

[0052] Combined with Figure 2 and Figure 3As shown, the axial flux motor 1000 includes a stator 1300, a first rotor 1100 and a second rotor 1200. The so-called first rotor 1100 and second rotor 1200 are parts that are rotatable relative to the stator 1300. The first rotor 1100 is arranged on one axial side of the stator 1300, and the second rotor 1200 is arranged on the other axial side of the stator 1300, that is, the stator 1300 is located between the first rotor 1100 and the second rotor 1200. When the stator 1300 is energized, it can make the first rotor 1100 and the second rotor 1200 rotate. Centered on the stator 1300, the first rotor 1100 and the second rotor 1200 are approximately symmetrically distributed. The output on one axial side of the axial flux motor 1000 is mainly formed by the first rotor 1100, and the output on the other axial side of the axial flux motor 1000 is mainly formed by the second rotor 1200. The first rotor 1100 corresponds to the first load 2100, and the second rotor 1200 corresponds to the second load 2200. By setting it like this, it can not only drive the first load 2100 and the second load 2200 to rotate, but also reduce or even avoid the eccentric wear of the shafting of the axial flux motor 1000, and can make the operation of the axial flux motor 1000 more stable.

[0053] Since one axial side of the axial flux motor 1000 is used to drive the first load 2100 to rotate, and the other axial side of the axial flux motor 1000 is used to drive the second load 2200 to rotate, the first load 2100 and the first rotor 1100 are both arranged on one axial side of the stator 1300, and the second load 2200 and the second rotor 1200 are both arranged on the other axial side of the stator 1300. Moreover, in order to avoid the axial flux motor 1000 interfering with the cooperation of the first load 2100, the second load 2200 and other components as much as possible, the first rotor 1100 can be arranged between the first load 2100 and the stator 1300, and the second rotor 1200 can be located between the second load 2200 and the stator 1300. And by setting it like this, compared with arranging the first load 2100 between the first rotor 1100 and the stator 1300, and arranging the second load 2200 between the second rotor 1200 and the stator 1300, it is also beneficial to improve the efficiency of the axial flux motor 1000.

[0054] Combined with Figure 3As shown, in some embodiments, the axial flux motor 1000 further includes a housing 1400. The stator 1300 is disposed on the housing 1400. By providing the housing 1400, the housing 1400 can be connected and fixed to the installation area, thereby realizing the support of the axial flux motor 1000. At the same time, the housing 1400 can also wrap and protect the stator 1300, improving the protection ability of the stator 1300. Further, the housing 1400 is injection-molded and connected to the stator 1300, that is, at least part of the housing 1400 is injection-molded, and is synchronously connected to the stator 1300 during the molding process, so that the stator 1300 is embedded in at least part of the housing 1400. For example, the stator 1300 is placed in a mold, and plastic is injected into the mold. After the plastic is molded, it forms the housing 1400 and the housing 1400 and the stator 1300 are combined together. Through the injection-molded connection between the housing 1400 and the stator 1300, the housing 1400 and the stator 1300 are tightly combined, improving the structural stability and durability, and can eliminate / reduce subsequent assembly processes, improving production efficiency. It can be understood that the stator 1300 includes an iron core and windings disposed on the iron core. When the stator 1300 is energized, the windings are energized, so that the windings can generate a changing magnetic field. A junction box can be provided on the housing 1400. The windings are connected to the junction box, and the wiring terminals of the controller are connected to the junction box, thereby realizing power supply and / or communication.

[0055] Combined Figures 1 to 5 As shown, in some embodiments, the axial flux motor 1000 includes a bearing 1500 and a shaft body 1600. The bearing 1500 is disposed on the housing 1400, and the shaft body 1600 passes through the bearing 1500.

[0056] Specifically, the main function of the bearing 1500 is to support the mechanical rotating body and reduce the friction coefficient during the movement. There are various types of bearings 1500, which can be selected according to the actual situation. For example, the bearing 1500 is a graphite bearing. The bearing 1500 is disposed on the housing 1400, that is, fixed on the housing 1400. There are also various connection and fixing methods between the bearing 1500 and the housing 1400, as long as the bearing 1500 can be fixed on the housing 1400. For example, the bearing 1500 and the housing 1400 are connected and fixed by interference fit, lock nut fastening, sleeve positioning, etc. The shaft body 1600 passes through the bearing 1500 and can support the first rotor 1100 and the second rotor 1200, and even support the first load 2100 and the second load 2200. The so-called support can be direct support or indirect support. By setting it like this, when affected by the stator 1300, the first rotor 1100 and the second rotor 1200 drive the shaft body 1600 to rotate, and the setting of the bearing 1500 can reduce the frictional resistance.

[0057] Further, the housing 1400 is injection-molded and connected to the bearing 1500, that is, at least part of the housing 1400 is injection-molded, and is synchronously connected to the bearing 1500 during the molding process, so that the bearing 1500 is embedded in at least part of the housing 1400. As can be seen from the above, the housing 1400 is also injection-molded and connected to the stator 1300, that is, the housing 1400 is injection-molded and connected to the stator 1300 and the bearing 1500, enhancing the bonding force between the housing 1400, the stator 1300 and the bearing 1500, improving the structural stability and durability, and further improving the production efficiency. For example, the stator 1300 and the bearing 1500 are placed in a mold, and then plastic is injected into the mold. After the plastic is molded, it forms the housing 1400 and the housing 1400 is combined with the stator 1300 and the bearing 1500.

[0058] Combined Figures 3 to 5 As shown, in some embodiments, the bearing 1500 includes a first bearing 1510 and a second bearing 1520. The first bearing 1510 and the second bearing 1520 are arranged at intervals, and the shaft body 1600 passes through the first bearing 1510 and the second bearing 1520. The first bearing 1510 and the second bearing 1520 arranged at intervals mean that the two are independent of each other. For example, Figure 3 the first bearing 1510 and the second bearing 1520 are arranged at intervals along the axial direction of the axial flux motor 1000. Since the first rotor 1100 and the second rotor 1200 are respectively arranged on the two axial sides of the stator 1300, and the first load 2100 and the second load 2200 are respectively driven to rotate on the two axial sides of the axial flux motor 1000, therefore, through the first bearing 1510 and the second bearing 1520 arranged at intervals, the wear and failure risks of a single bearing can be reduced, the stability of a single bearing can be improved, and the offset of the shaft body 1600 caused by thermal expansion can be reduced. It can be understood that the housing 1400 is injection-molded and connected to the bearing 1500. When the bearing 1500 includes the first bearing 1510 and the second bearing 1520, the housing 1400 is injection-molded and connected to the first bearing 1510 and the second bearing 1520 respectively.

[0059] Combined Figures 1 to 3As shown, in some embodiments, the first rotor 1100 and the second rotor 1200 are used to drive the shaft body 1600 to rotate, and the shaft body 1600 is used to drive the first load 2100 and the second load 2200 to rotate, so that the first load 2100 and the second load 2200 generate actions. That is, when the first rotor 1100 and the second rotor 1200 rotate under the action of the stator 1300, the first rotor 1100 and the second rotor 1200 drive the shaft body 1600 to rotate, and the shaft body 1600 drives the first load 2100 and the second load 2200 to rotate. By setting like this, the length of the shaft body 1600 can be adapted to the position settings of the first load 2100 and the second load 2200, which is more convenient for the flexible setting of the first load 2100 and the second load 2200. For example, the first load 2100 is arranged alternately with the first rotor 1100, and the second load 2200 is arranged alternately with the second rotor 1200.

[0060] There are various ways for the first rotor 1100 to drive the shaft body 1600 to rotate. For example, the first rotor 1100 is connected to the shaft body 1600 through key connection, screw connection, coupling connection, sleeve connection, etc. to be supported on the shaft body 1600. When the first rotor 1100 rotates, it can drive the shaft body 1600 to rotate. Since the first rotor 1100 needs to rotate, the first rotor 1100 can be sleeved on the shaft body 1600 and connected and fixed to the shaft body 1600, which is convenient for the first rotor 1100 to drive the shaft body 1600 to rotate.

[0061] Similarly, there are various ways for the second rotor 1200 to drive the shaft body 1600 to rotate. For example, the second rotor 1200 is connected to the shaft body 1600 through key connection, screw connection, coupling connection, sleeve connection, etc. to be supported on the shaft body 1600. When the second rotor 1200 rotates, it can drive the shaft body 1600 to rotate. Since the second rotor 1200 needs to rotate, the second rotor 1200 can be sleeved on the shaft body 1600 and connected and fixed to the shaft body 1600, which is convenient for the second rotor 1200 to drive the shaft body 1600 to rotate.

[0062] Furthermore, the shaft body 1600 is used to drive the first load 2100 and the second load 2200 to rotate. There are various ways for the shaft body 1600 to drive the first load 2100 to rotate. For example, the shaft body 1600 is connected to the first load 2100 through key connection, screw connection, coupling connection, sleeve connection, etc. to realize the support of the first load 2100. When the shaft body 1600 rotates, it can drive the first load 2100 to rotate. In this embodiment, the first load 2100 can be sleeved on the shaft body 1600 and connected and fixed to the shaft body 1600.

[0063] Similarly, there are various ways for the shaft body 1600 to drive the second load 2200 to rotate. For example, the shaft body 1600 is connected to the second load 2200 through key connection, screw connection, coupling connection, sleeve connection, etc. to support the second load 2200. When the shaft body 1600 rotates, it can drive the second load 2200 to rotate. In this embodiment, the second load 2200 can be sleeved on the shaft body 1600 and fixedly connected to the shaft body 1600.

[0064] Combined with Figures 1 to 3 and Figures 6 to 7 As shown, in some embodiments, the first rotor 1100 includes a first support plate 1120 and a first permanent magnet 1110. The first permanent magnet 1110 is disposed on one side of the first support plate 1120 facing the stator 1300. The first support plate 1120 is a skeleton structure for supporting the first permanent magnet 1110, and there are various structural shapes, which are not limited herein. The material of the first permanent magnet 1110 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 1110 needs to interact with the magnetic field formed by the stator 1300, disposing the first permanent magnet 1110 on the side of the first support plate 1120 facing the stator 1300 is beneficial to improving the efficiency of the axial flux motor 1000 compared to disposing the first permanent magnet 1110 on the side of the first support plate 1120 facing away from the stator 1300.

[0065] Furthermore, the first support plate 1120 and the first permanent magnet 1110 are injection-molded and connected, that is, at least part of the first support plate 1120 is injection-molded and synchronously connected to the first permanent magnet 1110 during the molding process, so that the first permanent magnet 1110 is embedded in at least part of the first support plate 1120. By setting it in this way, the first support plate 1120 and the first permanent magnet 1110 are tightly combined, improving the structural stability and durability, and can eliminate / reduce subsequent assembly processes, improving production efficiency.

[0066] Combined with Figures 1 to 3 and Figures 6 to 7As shown, in some embodiments, the second rotor 1200 includes a second support plate 1220 and second permanent magnets 1210. The second permanent magnets 1210 are disposed on one side of the second support plate 1220 facing the stator 1300. The second support plate 1220 is a framework structure for supporting the second permanent magnets 1210, and there are various structural shapes, which are not limited herein. The material of the second permanent magnets 1210 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 1210 need to interact with the magnetic field formed by the stator 1300, disposing the second permanent magnets 1210 on one side of the second support plate 1220 facing the stator 1300 is beneficial to improving the efficiency of the axial flux motor 1000 as compared with disposing the second permanent magnets 1210 on the side of the second support plate 1220 facing away from the stator 1300.

[0067] Furthermore, the second support plate 1220 and the second permanent magnets 1210 are injection-molded and connected, that is, at least part of the second support plate 1220 is injection-molded, and is synchronously connected to the second permanent magnets 1210 during the molding process, so that the second permanent magnets 1210 are embedded into at least part of the second support plate 1220. By such an arrangement, the second support plate 1220 and the second permanent magnets 1210 are tightly combined, improving the structural stability and durability, and can eliminate / reduce subsequent assembly processes, improving production efficiency.

[0068] Combined Figures 1 to 3 And Figure 8 As shown, in some embodiments, the first load 2100 is used to drive the fluid to flow, that is, the axial flux motor 1000 drives the first load 2100 to rotate, thereby driving the fluid to flow. The flow of the fluid mainly proceeds along the flow channel. The flow channel can be bent or straight, which is convenient for the cooperation of the flow channel, the first load 2100 and the axial flux motor 1000. Similarly, the second load 2200 is used to drive the fluid to flow, that is, the axial flux motor 1000 drives the second load 2200 to rotate, thereby driving the fluid to flow. The flow of the fluid mainly proceeds along the flow channel. The flow channel can be bent or straight, which is convenient for the cooperation of the flow channel, the second load 2200 and the axial flux motor 1000. For example, the first load 2100 is an impeller, and the second load 2200 is also an impeller. Thus, the first load 2100 can be coaxially arranged with the axial flux motor 1000, and the second load 2200 can be coaxially arranged with the axial flux motor 1000. The rotation of the impeller drives the fluid to flow. It can be understood that the fluid includes but is not limited to gases and liquids, and the sizes / structures of the first load 2100 and the second load 2200 can be the same or different.

[0069] Further, the first load 2100 is a centrifugal impeller, so that the fluid can enter the first load 2100 along the axial direction of the first load 2100 and be discharged in a substantially radial direction, so that when the first load 2100 is designed to be coaxial with the axial flux motor 1000, it is beneficial to reduce the space occupied in the axial direction, which is more conducive to the arrangement of the structure. Similarly, the second load 2200 is a centrifugal impeller, so that the fluid can enter the second load 2200 along the axial direction of the second load 2200 and be discharged in a substantially radial direction, so that when the second load 2200 is designed to be coaxial with the axial flux motor 1000, it is beneficial to reduce the space occupied in the axial direction, which is more conducive to the arrangement of the structure.

[0070] In some embodiments, the first load 2100 and the first rotor 1100 are arranged in the same cavity, which can further compress the axial space and make the structure more compact. In addition, since the housing 1400 and the stator 1300 are injection-molded, it is beneficial to isolate the space on both sides of the axial direction of the housing 1400, and avoid fluid leakage from the space where the first load 2100 and the first rotor 1100 are located to the space where the second rotor 1200 is located as much as possible, thereby reducing the difficulty of sealing design.

[0071] Similarly, the second load 2200 and the second rotor 1200 are arranged in the same cavity, which can further compress the axial space and make the structure more compact. Moreover, since the housing 1400 and the stator 1300 are injection-molded, it is beneficial to isolate the space on both sides of the axial direction of the housing 1400, and avoid fluid leakage from the space where the second load 2200 and the second rotor 1200 are located to the space where the first rotor 1100 is located as much as possible, thereby reducing the difficulty of sealing design.

[0072] The second aspect of the present application discloses a household appliance, which includes the above-mentioned driving device 100, and the driving device 100 includes an axial flux motor 1000, a first load 2100 and a second load 2200. One axial side of the axial flux motor 1000 is used to drive the first load 2100 to rotate, and the other axial side of the axial flux motor 1000 drives the second load 2200 to rotate. For example, the household appliance is a sweeper, and the sweeper has two rotatable brush heads, one of which is regarded as the first load 2100, and the other is regarded as the second load 2200. Of course, the household appliance can also be of other types, which will not be described one by one here.

[0073] The axial flux motor 1000 includes a stator 1300, a first rotor 1100, a second rotor 1200 and a housing 1400. The first rotor 1100 is disposed on one axial side of the stator 1300, and the second rotor 1200 is disposed on the other axial side of the stator 1300, that is, the stator 1300 is located between the first rotor 1100 and the second rotor 1200. When the stator 1300 is energized, it can cause the first rotor 1100 and the second rotor 1200 to rotate. The stator 1300 is disposed on the housing 1400. By providing the housing 1400, the housing 1400 can be connected and fixed to the installation area, thereby realizing the support of the axial flux motor 1000. At the same time, the housing 1400 can also wrap and protect the stator 1300, improving the protection ability of the stator 1300. In particular, the housing 1400 and the stator 1300 are designed to be injection-molded and connected, so that the stator 1300 is embedded in at least a part of the housing 1400, and the stator 1300 and the housing 1400 are closely combined, which is beneficial to improving the structural stability and durability.

[0074] It can be understood that the driving device 100 of the household appliance in this embodiment adopts the technical solution of the above embodiment, and thus has at least the beneficial effects brought by the technical solution of the above embodiment, which will not be repeated here.

[0075] 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. A driving device (100), characterized in that, Comprising: An axial flux motor (1000), the axial flux motor (1000) includes a first rotor (1100), a second rotor (1200), a stator (1300) and a housing (1400), the stator (1300) is disposed between the first rotor (1100) and the second rotor (1200), and the housing (1400) and the stator (1300) are injection-molded and connected; A first load (2100), one axial side of the axial flux motor (1000) is adapted to drive the first load (2100) to rotate; and A second load (2200), the other axial side of the axial flux motor (1000) is adapted to drive the second load (2200) to rotate.

2. The drive device (100) according to claim 1, characterized in that, The axial flux motor (1000) includes: Bearings (1500), disposed on the housing (1400); and A shaft body (1600), passing through the bearings (1500), the first rotor (1100) and the second rotor (1200) are supported on the shaft body (1600) and are adapted to drive the shaft body (1600) to rotate.

3. The drive device (100) according to claim 2, characterized in that, The housing (1400) and the bearings (1500) are injection-molded and connected.

4. The drive device (100) according to claim 2, characterized in that, The bearings (1500) include a first bearing (1510) and a second bearing (1520) arranged alternately, and the shaft body (1600) passes through the first bearing (1510) and the second bearing (1520).

5. The drive device (100) according to claim 2, characterized in that, The first load (2100) and the second load (2200) are supported on the shaft body (1600), and the shaft body (1600) is adapted to drive the first load (2100) and the second load (2200) to rotate.

6. The drive device (100) according to claim 2 or 5, characterized in that, The first rotor (1100) is sleeved and fixed on the shaft body (1600); And / or, the second rotor (1200) is sleeved and fixed on the shaft body (1600); And / or, the first load (2100) is sleeved and fixed on the shaft body (1600); And / or, the second load (2200) is sleeved and fixed on the shaft body (1600).

7. The drive device (100) according to claim 1, characterized in that, The first rotor (1100) includes a first support plate (1120) and a first permanent magnet (1110) disposed on the first support plate (1120), and the first permanent magnet (1110) is disposed on one side of the first support plate (1120) facing the stator (1300); And / or, the second rotor (1200) includes a second support plate (1220) and a second permanent magnet (1210) disposed on the second support plate (1220), and the second permanent magnet (1210) is disposed on one side of the second support plate (1220) facing the stator (1300).

8. The drive device (100) according to claim 7, characterized in that, The first support plate (1120) and the first permanent magnet (1110) of the first rotor (1100) are injection-molded and connected; And / or, the second support plate (1220) and the second permanent magnet (1210) of the second rotor (1200) are injection-molded and connected.

9. The drive device (100) according to claim 1, characterized in that, The first load (2100) is adapted to drive a fluid to flow; And / or, the second load (2200) is adapted to drive a fluid to flow.

10. The drive device (100) according to claim 9, characterized in that, The first load (2100) is an impeller; and / or, the second load (2200) is an impeller.

11. The drive device (100) according to claim 9, characterized in that, The first load (2100) is a centrifugal impeller; and / or, the second load (2200) is a centrifugal impeller.

12. The drive device (100) according to claim 9, characterized in that, The first load (2100) and the first rotor (1100) are arranged in the same cavity; and / or, the second load (2200) and the second rotor (1200) are arranged in the same cavity.

13. An household appliance, characterized in that, Comprising the drive device (100) according to any one of claims 1 to 12.

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