Motor and washing device

Abstract

Provided are a motor (1000) and a washing device. The motor (1000) comprises a stator (100), a rotor (200), an end cover (300), an electric control board (500), and a mounting structure (400). The stator (100) comprises a stator core (110) and a plastic packaging housing (120) covering the stator core (110), wherein one end of the plastic packaging housing (120) is provided with a port (121); the rotor (200) is rotatably provided in the stator core (110); the end cover (300) is provided at the port (121) and is connected to the plastic packaging housing (120); the electric control board (500) is connected to the stator (100); and the mounting structure (400) is provided at the end of the plastic packaging housing (120) distant from the end cover (300), and is integrally formed with the plastic packaging housing (120) and is used for accommodating the electric control board (500).

Description

Motors and washing equipment

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to Chinese patent application number 202311511777.X filed on November 13, 2023, entitled “Motor and Washing Equipment”, and application number 202323072990.3 filed on November 13, 2023, entitled “Motor and Washing Equipment”. The entire contents of the above patent applications are incorporated into this application by reference. Technical Field

[0003] The present application relates to the field of motor technology, and in particular to a motor and a washing device. Background Art

[0004] The vibration noise of the driving motor of a drum washing machine depends largely on the sealing performance of the motor against vibration noise. Currently, the motor includes a stator, a rotor, a front cover and a rear cover. The front and rear covers are assembled with the stator and support the rotor through the front and rear covers. Due to the assembly gap between the front and rear covers and the stator, noise can easily be transmitted through the gap and easily stimulate resonance, thereby increasing the noise. Summary of the Invention

[0005] The present application aims to at least partially solve one of the technical problems existing in the prior art. To this end, the present application proposes a motor suitable for a washing device.

[0006] The present application also provides a washing device comprising the above-mentioned motor.

[0007] According to the first aspect of the present application, the motor includes a stator, a rotor, an end cover and an electric control board, the stator includes a stator core and a plastic-encapsulated shell wrapped around the stator core, and a port is provided at one end of the plastic-encapsulated shell; the rotor is rotatably arranged in the stator core; the end cover is arranged at the port and connected to the plastic-encapsulated shell; the electric control board is connected to the stator; the mounting structure is used to accommodate the electric control board, the mounting structure is arranged at one end of the plastic-encapsulated shell away from the end cover, and is an integrally molded structure with the plastic-encapsulated shell.

[0008] According to some embodiments of the present application, the mounting structure includes a box body, which is formed at one end of the plastic-encapsulated shell away from the end cover, and the electric control board is fixedly connected to the box body.

[0009] According to some embodiments of the present application, the box body includes a surrounding edge protruding from the end surface of the plastic shell, and the motor also includes a cover body, which is connected to the surrounding edge to define an installation space for accommodating the electric control board.

[0010] According to some embodiments of the present application, the mounting structure includes a plastic coating layer, which is formed at an end of the plastic package shell away from the end cover and wraps around the electric control board.

[0011] According to some embodiments of the present application, the stator further includes a winding wound around the stator core, and a lead wire of the winding is electrically connected to the electric control board.

[0012] According to some embodiments of the present application, the outer peripheral wall of the plastic-sealed shell is provided with a first mounting foot and a second mounting foot, the first mounting foot is formed at one end of the plastic-sealed shell close to the end cover, and the second mounting foot is formed at the other end of the plastic-sealed shell.

[0013] According to some embodiments of the present application, two first mounting feet are provided, and the two first mounting feet are arranged at intervals along the circumference of the plastic shell, and are respectively provided with a first connecting portion extending along the radial direction of the stator, and the first connecting portion is provided with a first mounting hole for passing a connecting component, and the second mounting foot is a pin structure.

[0014] According to some embodiments of the present application, the latch structure is arranged in a direction away from the second mounting foot, and on a projection plane perpendicular to the stator axis, the projection of the latch structure is located between the projections of the two first mounting holes.

[0015] According to some embodiments of the present application, the motor further includes at least one third mounting foot, and at least one third mounting foot is detachably connected to an end of the plastic-encapsulated housing away from the first mounting foot.

[0016] According to some embodiments of the present application, there are two third mounting feet, and the two third mounting feet are arranged at intervals along the circumference of the plastic shell, and are respectively provided with a second connecting portion extending along the radial direction of the stator, and the second connecting portion is provided with a second mounting hole for passing the connecting component, and the second mounting hole and the first mounting hole are both arranged along the axial direction of the stator.

[0017] According to some embodiments of the present application, the motor further includes a connecting piece, the plastic-encapsulated shell is provided with a through hole arranged along the axial direction of the stator, and the connecting piece is passed through the through hole to connect the third mounting foot and the end cover.

[0018] The washing device according to the second embodiment of the present application includes the motor described in the first embodiment.

[0019] Other features and advantages of the present application will be set forth in the following description, and in part will be apparent from the description, or may be learned by practicing the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] FIG1 is a schematic diagram of the three-dimensional structure of a motor according to an embodiment of the present application (from a front side perspective);

[0021] FIG2 is a schematic diagram of the three-dimensional structure of a motor according to an embodiment of the present application (from a rear perspective);

[0022] FIG3 is a schematic diagram of the exploded structure of a motor according to an embodiment of the present application (from a front side perspective);

[0023] FIG4 is a schematic diagram of the exploded structure of a motor according to an embodiment of the present application (from a rear perspective);

[0024] FIG5 is an enlarged structural diagram of point A in FIG4 ;

[0025] FIG6 is a schematic diagram of the three-dimensional structure of a motor according to another embodiment of the present application;

[0026] FIG7 is a schematic diagram of an exploded state of a motor and a third mounting foot in another embodiment of the present application; and

[0027] FIG8 is a schematic diagram of the assembly state of the motor and the third mounting foot in another embodiment of the present application.

[0028] Reference numerals:

[0029] Stator 100; stator core 110; plastic housing 120; port 121; first mounting foot 130; first connecting portion 131; first mounting hole 132; second mounting foot 140; boss 150;

[0030] Rotor 200; rotor core 210; shaft 220; drive end 221; front bearing 222; rear bearing 223;

[0031] End cap 300;

[0032] Mounting structure 400; box body 410; edge 411; slot 412; conductive sheet 413; mounting space 420;

[0033] Electric control panel 500;

[0034] Cover body 600; heat dissipation holes 610;

[0035] Bolt 700;

[0036] Third mounting foot 800; second connecting portion 810; second mounting hole 811;

[0037] Motor 1000. Modes for Carrying Out the Invention

[0038] The following describes in detail embodiments of the present application. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application and are not to be construed as limiting the present application.

[0039] In the description of this application, it should be understood that the terms "upper", "lower", "axial", "radial", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on this application.

[0040] In the description of this application, if there is a description of "first", "second", etc., it is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0041] In the description of this application, it should be noted that terms such as setting, installing, and connecting should be understood in a broad sense, and technical personnel in the relevant technical field can reasonably determine the specific meaning of the above terms in this application based on the specific content of the technical solution.

[0042] The technical solution of the present application will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the embodiments described below are only part of the embodiments of the present application, not all of the embodiments.

[0043] The vibration noise of a drum washing machine's drive motor depends largely on the motor's sealing performance. Generally, a motor consists of a stator, rotor, front cover, and rear cover. The front and rear covers are assembled with the stator and supported by the rotor. Due to the gaps between the front and rear covers and the stator, noise can easily be transmitted through these gaps. Furthermore, when there are many assembly parts, resonance is easily excited, resulting in increased noise. Furthermore, as the number of assembly parts increases, the overall cost of the machine also increases.

[0044] In order to solve the above problems, referring to Figures 1 to 8, an embodiment of the present application proposes a motor 1000 suitable for a washing machine, a dryer or other washing equipment. The motor 1000 of a drum washing machine is used as an example for detailed description below.

[0045] 1 and 3 , the motor 1000 of the embodiment of the present application includes a stator 100, a rotor 200 and an end cover 300, wherein the stator 100 includes a stator core 110 and a plastic shell 120, and the plastic shell 120 is molded onto the stator core 110 through a plastic encapsulation process, so that the stator core 110 and the plastic shell 120 form an integrated structure. In the embodiment, the stator 100 is also called a plastic-encapsulated stator. The rotor 200 is rotatably connected to the stator 100. An open port 121 is provided at the front end of the plastic shell 120. The stator core 110 is annular. The port 121 is connected to the inner cavity of the stator core 110. The rotor 200 can be assembled into the stator core 110 through the port 121; the end cover 300 covers the port 121. The end cover 300 is connected to the plastic shell 120. The end cover 300 can be understood as the front end cover 300 of the motor 1000, and the front end of the rotor 200 is supported by the front end cover 300.

[0046] As shown in Figure 3 , rotor 200 includes a rotor core 210 and a rotating shaft 220. Rotating shaft 220 is disposed on rotor core 210. The front end of rotating shaft 220 passes through a front end cover 300 to form a drive end 221. Front end cover 300 is connected to plastic housing 120 via bolts 700. A front bearing 222 is mounted on front end cover 300 to support the front end of rotating shaft 220.

[0047] It should be noted that, in some embodiments, a rear end cover (not shown in the drawings) may be provided at the rear end of the plastic shell 120, and the plastic shell 120 is plastic-wrapped on the rear end cover so that the rear end cover and the plastic shell 120 are integrally formed. A rear bearing 223 is installed on the rear end cover, and the rear end of the rotating shaft 220 is supported by the rear bearing 223, so that both ends of the rotor 200 are supported, so that the rotor 200 can operate stably in the stator 100.

[0048] 1 , 3 , and 4 , the motor 1000 further includes an electronic control board 500. A mounting structure 400 is provided at the rear end of the plastic housing 120. The mounting structure 400 is configured to accommodate the electronic control board 500. It will be appreciated that, since the plastic housing 120 is formed on the rotor core 210 by injection molding, in this embodiment, the mounting structure 400 is integrally injection-molded with the plastic housing 120. This simplifies the assembly structure of the electronic control board 500 and the rotor 200, reduces the number of assembly components, and facilitates assembly.

[0049] In the related art, the motor's electronic control board is installed in a separate electronic control box, which is then mounted on the motor. This means that the electronic control box and motor are separate structures, requiring additional components to securely connect the electronic control box and motor. Furthermore, there is an assembly gap between the electronic control box and the motor, which is not conducive to noise reduction. In the embodiment of the present application, however, because the mounting structure 400 and the plastic housing 120 are integrally formed, the assembly gap is reduced, and the number of electronic control boxes and corresponding assembly parts can be reduced, making assembly easier. This makes the motor 1000 less likely to excite resonance, effectively reducing vibration noise, and also helps reduce the cost of the motor 1000.

[0050] It should be noted that in the embodiment, the mounting structure 400 can function as an electric control box, protecting the electric control board 500, or can be a bracket, fixing platform, or other structure for securing the electric control board 500. It is understood that because the mounting structure 400 is formed at the rear end of the plastic housing 120, when a rear end cover is installed, the mounting structure 400 can cover the rear end cover, forming a closed structure at the rear end of the plastic housing 120. This can reduce the assembly gap at the rear end of the motor 1000, improve the sealing of the motor 1000, and thereby reduce the transmission of noise through the assembly gap, thereby achieving a noise reduction effect.

[0051] Of course, in some embodiments, since the mounting structure 400 is formed at the rear end of the stator core 110, the rear end of the stator core 110 forms a closed structure, so that the rear bearing 223 can also be directly installed on the side of the mounting structure 400 facing away from the electronic control board 500. For example, a bearing chamber is formed on the side of the mounting structure 400 facing the stator core 110, and the bearing chamber and the mounting structure 400 are integrally formed, and the rear bearing 223 is installed in the bearing chamber. In this way, the rear end cover component can be reduced and the structure can be further simplified.

[0052] It can be understood that the embodiment adopts a structure in which the mounting structure 400 and the stator 100 are integrally formed, which not only reduces the number of assembly parts of the motor 1000 as a whole, but also reduces the assembly gap, making it less likely for the motor 1000 to excite resonance, thereby reducing the generation of resonance and helping to reduce vibration noise.

[0053] It can be understood that in the embodiment of the present application, the stator 100 also includes a winding, which is wound on the stator core 110, and the electronic control board 500 is electrically connected to the winding. The motor 1000 is connected to the circuit of the washing machine through the electronic control board 500, and the power supply and signal transmission are realized for the motor 1000, thereby controlling the operation of the motor 1000.

[0054] Considering that the temperature rise of the motor 1000 is mainly reflected in the temperature rise of the stator 100 windings, due to the presence of assembly gaps between the assembly parts, the air in the assembly gaps is a thermal resistance. When there are many assembly parts and assembly gaps, it is not conducive to the heat dissipation of the stator 100 windings. The assembly gaps will reduce the heat dissipation effect, which is not conducive to the stable operation of the motor 1000. The embodiments of the present application adopt the above-mentioned structure, so the number of assembly parts and the assembly gaps can be reduced, thereby reducing the air thermal resistance. Heat can be transferred to the mounting structure 400 for dissipation, which is conducive to accelerating the heat dissipation of the windings, thereby improving the heat dissipation effect and facilitating the stable operation of the motor 1000.

[0055] It should be noted that the material used for the plastic shell 120 of the embodiment is Bulk Molding Compound (BMC), which is lower in cost than the motor shell made of aluminum or other materials in the related art. The plastic packaging process facilitates the stator core 110, the plastic shell 120 and the mounting structure 400 to form an integrated structure, which is easy to process and has a stable and reliable structure, effectively reducing the number of assembly parts of the motor 1000 and further reducing the cost of the entire machine.

[0056] As shown in FIG1 , the end cap 300 can be connected to the plastic housing 120 via bolts 700 . Specifically, a through hole is formed in the plastic housing 120 along the axial direction of the stator 100 . The bolts 700 pass through the end cap 300 and are fixedly connected to the plastic housing 120 , thereby securing the end cap 300 . In the embodiment, the end cap 300 is secured by three bolts 700 , ensuring a stable and secure assembly of the end cap 300 . Of course, this is merely an example, and the number of bolts 700 is not limited to three, but may also be four, five, or more. The connector is also not limited to bolts 700 and may also be fixed using rivets or other methods, depending on actual requirements.

[0057] 3 and 4 , in some embodiments, the mounting structure 400 includes a housing 410 formed at the rear end of the plastic housing 120 and having a generally rectangular shape. Because the housing 410 and the plastic housing 120 are integrally formed, the electric control board 500 can be directly mounted within the housing 410. This eliminates the need to mount the electric control board 500 on the motor 1000 after the electric control board 500 is mounted, compared to a structure in which the electric control board 500 is separate from the motor 1000. This simplifies the assembly structure and improves assembly efficiency. Furthermore, no gap is formed between the housing 410 and the stator 100, thereby reducing assembly clearance. The specific dimensions of the housing 410 can be adjusted based on the dimensions of the electric control board 500, allowing the electric control board 500 to fit within the housing 410 and provide protection for the electric control board 500.

[0058] It can be understood that the box body 410 is formed as a whole with the plastic shell 120, and the box body 410 protrudes from the rear end of the plastic shell 120 in the direction away from the stator 100. The box body 410 is made of plastic. The electric control board 500 can be fixedly connected to the box body 410 by screws, snap connections, etc., so that the electric control board 500 is fixedly connected to the motor 1000. For example, the bottom wall of the box body 410 can be integrally formed with a screw hole, and the screw is passed through the electric control board 500 and fixedly connected to the screw hole, so that the electric control board 500 can be quickly fixed.

[0059] Of course, this is just an example, and the shape of the box body 410 is not limited to a rectangle, and can be a circle, a square, or other shapes.

[0060] Furthermore, since the electronic control board 500 needs to be connected to the windings, the windings must be electrically connected to the electronic control board 500 through the box body 410 via a conductive structure. Specifically, the windings are wound around the stator core 110, and the winding leads are connected to the conductive plates 413. Taking a three-phase winding as an example, each phase of the winding is welded to the conductive plates 413. The stator core 110, windings, and conductive plates 413 are encapsulated together through a plastic encapsulation process. The conductive plates 413 are then connected to the electronic control board 500. The conductive plates 413 are conductive metal sheets, thus achieving an electrical connection between the electronic control board 500 and the windings, and the structure is stable and reliable.

[0061] 5 , it can be understood that, considering that the conductive piece 413 needs to be connected to the electric control board 500, after the stator 100 and the box body 410 are injection molded, a slot 412 is formed on the bottom wall of the box body 410, and the conductive piece 413 is exposed in the slot 412. The electric control board 500 can be connected to the conductive piece 413 by plugging. For example, a plug connector matching the slot 412 is provided on the electric control board 500, and two, three or more conductive pieces 413 can be provided, which can be set according to the application requirements.

[0062] In some embodiments, in order to improve the connection stability between the electronic control board 500 and the conductive sheet 413, after the electronic control board 500 is inserted into the slot 412, the electronic control board 500 and the conductive sheet 413 can be fixed by welding to ensure that the electronic control board 500 and the conductive sheet 413 can maintain communication and are not easily loosened.

[0063] Continuing with Figures 4 and 5 , the box body 410 includes a peripheral edge 411 that protrudes from the rear end of the plastic housing 120 and forms a rectangular frame. It will be appreciated that because the box body 410 is integrally formed with the plastic housing 120 and is formed at the rear end of the plastic housing 120, the bottom wall of the box body 410 can cover the rear end of the stator core 110, forming a closed structure. The side of the box body 410 away from the bottom wall is open, through which the electronic control board 500 can be installed within the box body 410.

[0064] As shown in Figure 2, in the embodiment, the motor 1000 also includes a cover body 600, which is connected to the surrounding edge 411 so that the cover body 600 covers the opening structure. In this way, the cover body 600 and the surrounding edge 411 can cooperate to define an installation space 420. The installation space 420 can accommodate the electronic control board 500, so that the electronic control board 500 will not be exposed, thereby improving the protection effect.

[0065] Specifically, as shown in Figures 4 and 5, the shape of the cover body 600 matches the shape of the surrounding edge 411. Screw holes are provided on the surrounding edge 411, and the screw holes are located at the corners of the frame. At the same time, openings corresponding to the screw holes are opened on the cover body 600. The cover body 600 and the box body 410 can be fixedly connected by passing screws through the openings and the screw holes.

[0066] It should be noted that in this embodiment, the cover 600 is provided with a plurality of heat dissipation holes 610. The heat dissipation holes 610 are in the form of elongated strips and are distributed along the surface of the cover 600. As can be understood from Figures 1 and 2 , the cover 600, when assembled, can cover the electronic control board 500. Heat generated by the electronic control board 500 is dissipated outward through the heat dissipation holes 610, thereby improving the heat dissipation efficiency of the electronic control board 500.

[0067] In addition, the cover body 600 is made of plastic material, and the heat dissipation holes 610 and the cover body 600 are integrally formed by injection molding, which is easy to process and has low cost.

[0068] In some embodiments, the mounting structure 400 includes a plastic coating layer (not shown in the drawings), which is formed at the rear end of the plastic package shell 120 and is wrapped around the electric control board 500 through the plastic coating layer. The difference from the embodiments shown in Figures 1 and 2 is that the stator core 110 and the electric control board 500 are injection molded together, so that the plastic coating layer can be formed and the electric control board 500 can be wrapped at the same time as the plastic package shell 120 is formed. There is no need to install the electric control board 500 and the cover 600 after the stator 100 is injection molded, thereby simplifying the assembly structure and further reducing the cost of the entire machine.

[0069] Specifically, during assembly, the lead wires of the windings are first welded to the electric control board 500 through the conductive sheet 413, and then the stator core 110, the windings, and the electric control board 500 are plastic-sealed. In this way, the electric control board 500 can be completely wrapped in the plastic layer, and there is no need to add screws or other connecting parts to fix the electric control board 500, making assembly more convenient and quick.

[0070] It can be understood that, compared with the structure of the combination of the box body 410 and the cover body 600, the plastic-encapsulated shell 120 can reduce the number of assembly parts by forming a plastic layer in one piece, and the assembly gap is also reduced accordingly, which has better sealing performance in blocking vibration noise, better noise reduction effect, and is also beneficial to reducing thermal resistance and improving heat dissipation effect.

[0071] Of course, the plastic coating may be provided with heat dissipation holes 610, which help to accelerate the heat dissipation of the electronic control board 500 and improve the heat dissipation efficiency of the electronic control board 500. The specific form of the heat dissipation holes 610 can be seen in the heat dissipation hole 610 structure of the embodiment shown in Figures 1 and 2.

[0072] 1 and 2 , a first mounting foot 130 and a second mounting foot 140 are provided on the outer peripheral wall of the plastic shell 120, wherein two first mounting feet 130 are provided, and the two first mounting feet 130 are arranged at intervals and located at the front end of the plastic shell 120; one second mounting foot 140 is provided, and the second mounting foot 140 is located at the rear end of the plastic shell 120. The motor 1000 is connected to the washing machine through the first mounting foot 130 and the second mounting foot 140, so that the motor 1000 can be fixedly assembled in the washing machine and obtain stable support.

[0073] It is understood that the first mounting foot 130 and the second mounting foot 140 are integrally injection-molded with the plastic housing 120. That is, after the stator 100 is injection-molded, the first mounting foot 130, the second mounting foot 140, and the housing 410 are simultaneously formed. Since the motor 1000 needs to be mounted horizontally on the washing machine, that is, the axial direction of the rotating shaft 220 is arranged horizontally after the motor 1000 is installed, the first mounting foot 130 and the second mounting foot 140 are arranged on the same side of the motor 1000 to facilitate connection of the motor 1000 to the washing machine.

[0074] In the embodiment, the stator 100 adopts the above-mentioned structure. Compared with the mounting foot and the motor 1000 adopting a split structure, the number of assembly parts can be greatly reduced, which not only improves the assembly efficiency of the motor 1000, but also reduces the assembly gap, further reduces the possibility of exciting resonance, and has a better noise reduction effect. It is also beneficial to reduce thermal resistance and improve the heat dissipation efficiency of the motor 1000.

[0075] Specifically, taking the directions shown in Figures 1 and 2 as reference directions, the first mounting feet 130 and the second mounting feet 140 are located at the lower side of the motor 1000, wherein the two first mounting feet 130 are arranged at intervals along the circumference of the plastic shell 120, and the two first mounting feet 130 are respectively provided with a first connecting portion 131, and the first connecting portion 131 is extended along the radial direction of the stator 100, that is, the two first connecting portions 131 are respectively arranged in a direction away from the plastic shell 120, and a first mounting hole 132 is provided on the first connecting portion 131, and the axial direction of the first mounting hole 132 is consistent with the axial direction of the rotating shaft 220.

[0076] It should be noted that in this embodiment, the second mounting foot 140 is a flat pin structure. The second mounting foot 140 is arranged along the axial direction of the stator 100, away from the plastic housing 120. In other words, the second mounting foot 140 protrudes toward the rear side of the motor 1000. The first mounting foot 130 is also referred to as the front foot of the motor 1000, and the second mounting foot 140 is also referred to as the rear foot of the motor 1000.

[0077] It can be understood that the washing machine is provided with a connecting component corresponding to the first mounting foot 130 and a plug-in hole corresponding to the second mounting foot 140. During assembly, the latch structure is first directly inserted into the plug-in hole of the washing machine, and then the two first mounting feet 130 in front are connected to the connecting component of the washing machine, thereby fixing the motor 1000. Specifically, the connecting component can be a connecting column, which can be directly buckled into the first mounting hole 132 of the first connecting portion 131, so that both the front and rear ends of the motor 1000 are fixed, and the installation is also simple and quick. Of course, the connecting component is not limited to the connecting column. The connecting component can be fixed by passing through the first mounting hole 132, for example, by screws or other forms of components; in addition, the shape of the latch structure is not limited to flat, and can also be set according to actual requirements.

[0078] Since the two first mounting feet 130 are located at the front end of the motor 1000 for support, and the one second mounting foot 140 is located at the rear end of the motor 1000 for support, and both the first mounting foot 130 and the second mounting foot 140 are located on the lower side of the motor 1000, the embodiment further optimizes the positions of the first mounting foot 130 and the second mounting foot 140. Specifically, as can be understood from FIG1 , on the projection plane of the motor 1000 perpendicular to the axial direction of the stator 100, the projection of the latch structure is located between the projections of the two first mounting holes 132. This makes the two first mounting feet 130 and the one second mounting foot 140 distributed non-linearly on the lower side of the motor 1000, specifically in a triangular distribution, and located on the same plane, which is conducive to forming a stable support, making the installation of the motor 1000 more stable and reliable, and can significantly reduce the number of assembly parts, which has a greater advantage in cost savings.

[0079] Of course, this is only an example, and the specific forms of the first mounting foot 130 and the second mounting foot 140 are not limited to the structures shown in the above embodiments. For example, the second mounting foot 140 can also be fixed by means of buckling or the like, and can also adopt the same structure as the first mounting foot 130, that is, the second mounting foot 140 can be connected to the connecting component of the washing machine through the mounting hole; in addition, the number of the second mounting feet 140 is not limited to one, and can also be two or more, for example, two pin structures can be provided for plugging with the washing machine.

[0080] Since the number and form of the mounting feet of the motor 1000 remain fixed after the first mounting foot 130 and the second mounting foot 140 are injection-molded with the plastic shell 120, there is a problem of low compatibility. For example, after the stator 100 is injection-molded, two first mounting feet 130 and one second mounting foot 140 are formed, that is, there are three mounting feet, which are only suitable for washing machines with mounting positions corresponding to the three mounting feet reserved, and are not compatible with washing machines that do not match the mounting feet.

[0081] Based on this, as shown in Figure 6, in some embodiments of the present application, the motor 1000 also includes a third mounting foot 800, and two third mounting feet 800 are provided. The two third mounting feet 800 are arranged at intervals along the circumference of the plastic shell 120 and are detachably connected to the rear end of the plastic shell 120. In this way, after the stator 100 is injection molded, two third mounting feet 800 can be added to the plastic shell 120, so that the motor 1000 has four mounting feet. In other words, the motor 1000 can be switched from three mounting feet to four mounting feet. In this way, the motor 1000 is compatible with washing machines with three mounting positions and four mounting positions, and has better compatibility to meet the needs of different installation methods.

[0082] 7 and 8 , specifically, the two third mounting feet 800 are respectively connected to the plastic shell 120 by bolts 700, so that the third mounting feet 800 and the plastic shell 120 can be detachable, and the operation is simple; the two third mounting feet 800 are both connected to the lower side of the motor 1000, that is, located on the same side as the first mounting foot 130, and the two third mounting feet 800 are respectively provided with a second connecting portion 810, and the second connecting portion 810 is provided with a second mounting hole 811, and the second mounting hole 811 is used to connect to the connecting parts of the washing machine.

[0083] Figure 7 shows an exploded view of the two third mounting legs 800 and the motor 1000, and Figure 8 shows the two third mounting legs 800 and the motor 1000 in an assembled state. It can be understood that, in the axial direction of the stator 100, the two third mounting legs 800, once installed, correspond one-to-one with the two first mounting legs 130, and the second mounting holes 811 and the first mounting holes 132 are both arranged along the axial direction of the stator 100. When installing the motor 1000, first connect the two third mounting legs 800 at the rear end to the two connecting posts of the washing machine, and then connect the two first mounting legs 130 at the front end to the other two connecting posts, making installation convenient.

[0084] It should be noted that in this embodiment, the connection locations of the two third mounting feet 800 are located on either side of the second mounting foot 140, so that the second mounting foot 140 does not interfere with the assembly of the two third mounting feet 800. The second mounting foot 140 and the third mounting foot 800 are both located on the lower side of the box body 410, and the box body 410 and the mounting feet do not interfere with each other. This allows the box body 410, the first mounting foot 130, the second mounting foot 140, and the plastic housing 120 to be integrally formed, and additional mounting feet can be added according to application requirements, resulting in a reasonable layout design.

[0085] In addition, the number of the third mounting feet 800 is not limited to two, and one, three or more can be set according to actual requirements; and the form of the third mounting foot 800 is not limited to the structure shown in Figures 7 and 8, it can also be in the form of a pin structure, for example, it is connected to the plastic shell 120 through a detachable pin, so that the rear end of the motor 1000 can be provided with one, two or more pins.

[0086] 6 and 7 , in this embodiment, the motor 1000 further includes a connector, specifically a bolt 700. A boss 150 is formed on the outer peripheral wall of the plastic housing 120. The boss 150 is provided with a through hole, which is arranged axially along the stator 100. Because the end cap 300 is located at the front end of the stator 100 and needs to be connected to the plastic housing 120 via the bolt 700, this embodiment utilizes a connector such as the bolt 700 to penetrate the through hole and securely fasten the end cap 300 to the third mounting foot 800, thereby improving assembly efficiency.

[0087] It can be understood that in the embodiment, the end cover 300 is fixed by three bolts 700, wherein the two bolts 700 on the lower side pass through the plastic shell 120 and are respectively connected to the two third mounting feet 800. In this way, the end cover 300 and the third mounting feet 800 can be quickly assembled into place, with higher assembly accuracy and better sealing, which is conducive to reducing the generation of vibration noise, and the overall assembly structure of the motor 1000 is also more stable and reliable.

[0088] A plastic-sealed shell is formed by plastic coating the stator core, and the end cover of the motor is covered at the port and connected to the plastic-sealed shell. A mounting structure is provided on the plastic-sealed shell, and the mounting structure and the plastic-sealed shell are an integrally formed structure, so that the mounting structure is formed at one end of the plastic-sealed shell away from the end cover. The mounting structure is used to accommodate the electronic control board, so that the electronic control board and the stator are assembled into an integral structure. In this way, one end of the stator and the end cover are assembled, and the other end forms a closed structure through the mounting structure, which can reduce the assembly gap and the number of assembly parts between the electronic control board and the stator, making it less likely for the motor to excite resonance, thereby effectively reducing vibration noise. The motor is suitable for washing equipment such as drum washing machines.

[0089] An embodiment of the present application also provides a washing device, which may be a washing machine, a dryer or other washing appliance. Taking a drum washing machine as an example, the motor 1000 of the above embodiment is adopted, and the motor 1000 is installed in the drum washing machine. The motor 1000 is connected to the connecting parts or other fixed structures of the drum washing machine through the first mounting foot 130 and the second mounting foot 140.

[0090] A plastic-encapsulated housing 120 is formed on the stator core 110 through a plastic-encapsulation process, and a mounting structure 400 is provided on the plastic-encapsulated housing 120. The mounting structure 400 and the plastic-encapsulated housing 120 form an integrally formed structure. The mounting structure 400 is used to accommodate the electronic control board 500, so that the electronic control board 500 and the stator 100 are assembled into an integral structure. In this way, one end of the stator 100 is assembled with the end cover 300, and the other end forms a closed structure through the mounting structure 400. This can reduce the assembly gap and the number of assembly parts between the electronic control board 500 and the stator 100, making it difficult for the motor 1000 to excite resonance, thereby effectively reducing the vibration noise of the washing machine.

[0091] Since the washing device adopts all the technical solutions of the motor 1000 of the above embodiment, it has at least all the beneficial effects brought by the technical solutions of the above embodiment, which will not be described in detail here.

[0092] Some embodiments of the present application are described in detail above with reference to the accompanying drawings, but the present application is not limited to the above embodiments. Various changes can be made within the knowledge of ordinary technicians in the relevant technical field without departing from the purpose of the present application.

Claims

1. A motor, comprising: The stator comprises a stator core and a plastic-encapsulated shell overmolded on the stator core, wherein a port is provided at one end of the plastic-encapsulated shell; A rotor rotatably disposed in the stator core; An end cover, disposed at the port and connected to the plastic-sealed housing; An electric control board connected to the stator; as well as The mounting structure is used to accommodate the electric control board. The mounting structure is arranged at one end of the plastic-sealed shell away from the end cover and is an integrally formed structure with the plastic-sealed shell.

2. The motor according to claim 1, wherein: The installation structure comprises a box body, which is formed at one end of the plastic-encapsulated housing away from the end cover, and the electric control board is fixedly connected in the box body.

3. The motor according to claim 2, wherein: The box body includes a peripheral edge protruding from the end surface of the plastic package shell, and the motor also includes a cover body, and the cover body is connected to the peripheral edge to define an installation space for accommodating the electric control board.

4. The motor according to any one of claims 1 to 3, wherein: The mounting structure comprises a plastic coating layer, which is formed at one end of the plastic package shell away from the end cover and is wrapped around the electric control board.

5. The motor according to any one of claims 1 to 4, wherein: The outer peripheral wall of the plastic-sealed shell is provided with a first mounting foot and a second mounting foot, wherein the first mounting foot is formed at one end of the plastic-sealed shell close to the end cover, and the second mounting foot is formed at the other end of the plastic-sealed shell.

6. The motor according to claim 5, wherein: There are two first mounting feet, which are spaced apart along the circumference of the plastic package shell and respectively have a first connecting portion extending along the radial direction of the stator. The first connecting portion has a first mounting hole for passing a connecting component, and the second mounting foot is a latch structure.

7. The motor according to claim 6, wherein: The latch structure is arranged in a direction away from the second mounting foot, and on a projection plane perpendicular to the axial direction of the stator, a projection of the latch structure is located between projections of the two first mounting holes.

8. The motor according to claim 6 or 7, further comprising at least one third mounting foot, wherein at least one third mounting foot is detachably connected to an end of the plastic package housing away from the first mounting foot.

9. The electric machine according to claim 8, wherein: There are two third mounting feet, which are spaced apart along the circumference of the plastic-encapsulated shell and respectively provided with a second connecting portion extending along the radial direction of the stator. The second connecting portion is provided with a second mounting hole for passing a connecting component, and the second mounting hole and the first mounting hole are both provided along the axial direction of the stator.

10. The motor according to claim 8 or 9, further comprising a connecting piece, the plastic-encapsulated shell is provided with a through hole arranged along the axial direction of the stator, and the connecting piece is passed through the through hole to connect the third mounting foot and the end cover.

11. A washing device comprising the motor according to any one of claims 1 to 10.

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